HIGHMARK GROUP /OH/
497, 1997-04-04
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<PAGE>   1
                            - International Equity
                              Fund 

                                   Prospectus

                                Fiduciary Shares

                                 March 28, 1997

84827-A(3/97)                 [LOGO] HIGHMARK(SM)
                                     FUNDS

<PAGE>   2
 
                                 HIGHMARK FUNDS
 
                           INTERNATIONAL EQUITY FUND
 
  HighMark Funds ("HighMark") is an open-end, diversified, registered investment
company that offers a convenient means of investing in one or more
professionally managed portfolios of securities. This Prospectus relates to
HighMark's International Equity Fund.
 
                                FIDUCIARY SHARES
 
  HighMark's Fiduciary Shares are offered to the following investors: (i)
fiduciary, advisory, agency, custodial and other similar accounts maintained
with Union Bank of California, N.A. or its affiliates; (ii) SelectIRA accounts
established with The Bank of California, N.A. and invested in any of HighMark's
Equity or Income Funds prior to June 20, 1994, which have remained continuously
open thereafter and which are not considered to be fiduciary accounts; (iii)
Shareholders who currently own Shares of HighMark's Equity or Income Funds that
were purchased prior to June 20, 1994 within an account registered in their name
with the Funds; and (iv) present and retired directors, officers and employees
(and their spouses and children under the age of 21) of Union Bank of
California, N.A., HighMark's current or former distributors or their respective
affiliated companies who currently own Shares of HighMark Funds which were
purchased before April 30, 1997.
 
  This Prospectus sets forth concisely the information about HighMark and the
International Equity Fund that a prospective investor should know before
investing. Investors are advised to read this Prospectus and retain it for
future reference. A Statement of Additional Information dated the same date as
this Prospectus has been filed with the Securities and Exchange Commission and
is available without charge by writing the Distributor, SEI Financial Services
Company, Oaks, Pennsylvania 19456, or by calling 1-800-433-6884. The Statement
of Additional Information is incorporated into this Prospectus by reference.
This Prospectus relates only to the Fiduciary Shares of the International Equity
Fund. Interested persons who wish to obtain a prospectus for the other Funds of
HighMark may contact the Distributor at the above address and telephone number.
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
HIGHMARK'S SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK, INCLUDING UNION BANK OF CALIFORNIA, N.A., BANK OF
TOKYO-MITSUBISHI, LIMITED OR ANY OF THEIR AFFILIATES OR CORRESPONDENTS.
HIGHMARK'S SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT INSURANCE
CORPORATION OR ANY OTHER GOVERNMENT AGENCY. INVESTMENT IN HIGHMARK INVOLVES
RISKS, INCLUDING POSSIBLE LOSS OF THE PRINCIPAL AMOUNT INVESTED.
 
March 28, 1997
Fiduciary Shares
<PAGE>   3
 
                                    SUMMARY
 
HIGHMARK FUNDS ("HighMark") is an open-end, diversified, registered investment
company providing a convenient way to invest in professionally managed
portfolios of securities. The following provides basic information about the
Fiduciary Shares of the HighMark International Equity Fund (the "International
Equity Fund" or the "Fund"). This summary is qualified in its entirety by
reference to the more detailed information provided elsewhere in the Prospectus
and in the Statement of Additional Information.
 
WHAT IS THE FUND'S INVESTMENT OBJECTIVE? The International Equity Fund seeks to
provide long-term capital appreciation by investing primarily in a diversified
portfolio of equity securities of non-U.S. issuers. (See "INVESTMENT OBJECTIVE")
 
WHAT ARE THE FUND'S PERMITTED INVESTMENTS? The Fund primarily invests,
consistent with its investment objective, in equity securities including common
stocks and securities convertible into common stocks of non-U.S. issuers. The
Fund may also invest consistent with its investment objective and policies in
certain other instruments. (See "INVESTMENT POLICIES")
 
WHAT ARE THE RISKS INVOLVED WITH AN INVESTMENT IN THE INTERNATIONAL EQUITY FUND?
The investment policies of the Fund entail certain risks and considerations of
which an investor should be aware. The Fund may purchase common stocks and other
equity securities that are volatile and which may fluctuate in value more than
other types of investments. In addition, the Fund will invest in securities of
foreign companies that involve special risks and considerations not typically
associated with investing in U.S. companies. (See "Risk Factors")
 
ARE MY INVESTMENTS INSURED? HighMark's Shares are not federally insured by the
FDIC or any other government agency. Any guarantee by the U.S. Government, its
agencies or any instrumentalities of the securities in which the Fund invests
guarantees only the payment of principal and interest on the guaranteed
security, and does not guarantee the total return or value of the security or
total return or value of Shares of the Fund.
 
WHO IS THE ADVISOR? Pacific Alliance Capital Management, a division of Union
Bank of California, N.A., serves as the Advisor to HighMark. (See "The Advisor")
 
WHO IS THE SUB-ADVISOR? Tokyo-Mitsubishi Asset Management (U.K.), Ltd. serves as
the Sub-Advisor to the Fund. (See "The Sub-Advisor")
 
WHO IS THE ADMINISTRATOR? SEI Fund Resources serves as the Administrator of
HighMark. (See "The Administrator")
 
WHO IS THE CUSTODIAN? Union Bank of California, N.A. (the "Bank") serves as the
custodian of HighMark's assets. (See "The Custodian")
 
WHO IS THE DISTRIBUTOR? SEI Financial Services Company acts as distributor of
HighMark's Shares. (See "The Distributor")
 
HOW DO I PURCHASE AND REDEEM SHARES? Purchases and redemptions may be made
through the Distributor on days on which both the New York Stock Exchange and
the Federal Reserve wire system are open for business ("Business Days"). The
minimum initial investment is generally $1,000. A purchase order will be
effective if
 
                                        2
<PAGE>   4
 
the Distributor receives an order prior to 1:00 p.m., Pacific time (4:00 p.m.,
Eastern time) and the Custodian receives Federal funds before the close of
business on the next Business Day. Purchase orders for Shares will be executed
at a per Share price equal to the asset value next determined after the purchase
order is received and accepted by HighMark. Redemption orders must be placed
prior to 1:00 p.m., Pacific time (4:00 p.m., Eastern time) on any Business Day
for the order to be effective that day. (See "PURCHASE AND REDEMPTION OF
SHARES")
 
HOW ARE DIVIDENDS PAID? Substantially all of the net investment income
(exclusive of capital gains) of the Fund is periodically declared and paid as a
dividend to Shareholders of record. Any capital gain is distributed at least
annually. Distributions are paid in additional shares unless the Shareholder
elects to take the payment in cash. (See "DIVIDENDS")
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                          PAGE
                                                                                          ----
<S>                                                                                       <C>
Summary.................................................................................     2
International Equity Fund Fee Table.....................................................     4
Fund Description........................................................................     5
Investment Objective....................................................................     5
Investment Policies.....................................................................     5
General.................................................................................     6
  Money Market Instruments..............................................................     6
  Illiquid and Restricted Securities....................................................     7
  Lending of Portfolio Securities.......................................................     7
  Other Investments.....................................................................     7
  Risk Factors..........................................................................     8
Investment Limitations..................................................................     9
  Portfolio Turnover....................................................................    10
Purchase and Redemption of Shares.......................................................    10
Exchange Privileges.....................................................................    12
Dividends...............................................................................    13
Federal Taxation........................................................................    13
Service Arrangements....................................................................    15
  The Advisor...........................................................................    15
  The Sub-Advisor.......................................................................    16
  Administrator.........................................................................    16
  The Transfer Agent....................................................................    17
  Shareholder Service Plan..............................................................    17
  Distributor...........................................................................    17
  Banking Laws..........................................................................    17
  Custodian.............................................................................    18
General Information.....................................................................    18
  Description of HighMark & Its Shares..................................................    18
  Performance Information...............................................................    19
  Miscellaneous.........................................................................    19
Description of Permitted Investments....................................................    20
</TABLE>
 
                                        3
<PAGE>   5
 
                      INTERNATIONAL EQUITY FUND FEE TABLE
 
<TABLE>
<CAPTION>
                                                                                                        INTERNATIONAL
                                                                                                         EQUITY FUND
                                                                                                          FIDUCIARY
                                                                                                           SHARES
                                                                                                        -------------
<S>                                                                                                     <C>
SHAREHOLDER TRANSACTION EXPENSES(a)
  Maximum Sales Load Imposed on Purchases (as a percentage of offering price).........................         0%
  Maximum Sales Load Imposed on Reinvested Dividends (as a percentage of offering price)..............         0%
  Deferred Sales Load (as a percentage of original purchase price or redemption proceeds, as
    applicable).......................................................................................         0%
  Redemption Fees (as a percentage of amount redeemed, if applicable)(b)..............................         0%
  Exchange Fee(a).....................................................................................      $   0
ANNUAL OPERATING EXPENSES (as a percentage of net assets)
  Management Fees.....................................................................................      0.95%
  12b-1 Fees..........................................................................................      0.00%
  Other Expenses (after voluntary reduction)(c).......................................................      0.31%
  Total Fund Operating Expenses(d)....................................................................      1.26%
                                                                                                            =====
</TABLE>
 
  EXAMPLE: You would pay the following expenses on a $1,000 investment, assuming
(1) 5% annual return and (2) redemption at the end of each time period.
 
<TABLE>
<CAPTION>
                                                                         3        5        10
                                                              1 YEAR   YEARS    YEARS     YEARS
                                                              ------   ------   ------   -------
<S>                                                           <C>      <C>      <C>      <C>
International Equity Fund Fiduciary Shares..................   $ 13     $ 40     $ 69     $ 152
</TABLE>
 
  The purpose of the table above is to assist an investor in the International
Equity Fund in understanding the various costs and expenses that a Shareholder
will bear directly or indirectly. For a more complete discussion of the Fund's
annual operating expenses, see SERVICE ARRANGEMENTS below. THE FOREGOING EXAMPLE
SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE EXPENSES. ACTUAL
EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN.
- ---------------
 
(a) Certain entities (including Union Bank of California and its affiliates)
    making investments in the International Equity Fund on behalf of their
    customers may charge customers fees for services provided in connection with
    the investment in, redemption of, and exchange of Shares. (See PURCHASE AND
    REDEMPTION OF SHARES, EXCHANGE PRIVILEGES, and SERVICE ARRANGEMENTS--
    below.)
 
(b) A wire redemption charge is deducted from the amount of a wire redemption
    payment made at the request of a Shareholder. (See PURCHASE AND REDEMPTION
    OF SHARES below.)
 
(c) OTHER EXPENSES are based on the Fund's estimated expenses for the current
    fiscal year. Absent voluntary fee waivers, OTHER EXPENSES would be 0.58% for
    the Fiduciary Shares of the International Equity Fund.
 
(d) Absent voluntary fee waivers, TOTAL FUND OPERATING EXPENSES would be 1.53%
    for the Fiduciary Shares of the International Equity Fund.
 
                                        4
<PAGE>   6
 
FUND
DESCRIPTION             HighMark Funds ("HighMark") is an open-end, diversified,
                      registered investment company that currently offers units
                      of beneficial interest ("Shares") in sixteen separate
                      investment portfolios ("Funds"). All of the Funds are
                      advised by Pacific Alliance Capital Management (the
                      "Advisor"), a division of Union Bank of California, N.A.
                      Shareholders may purchase Shares of selected Funds through
                      two separate classes (the "Retail" and "Fiduciary"
                      classes). These classes may have different sales charges
                      and other expenses, which may affect performance.
                      Information regarding HighMark's other Funds and other
                      classes is contained in separate prospectuses that may be
                      obtained from HighMark's Distributor, SEI Financial
                      Services Company, at Oaks, Pennsylvania 19456, or by
                      calling 1-800-433-6884.
 
                        For information concerning those investors who qualify
                      to purchase Fiduciary Shares, see PURCHASE AND REDEMPTION
                      OF SHARES below. (Fiduciary Shares may be hereinafter
                      referred to as "Shares.")
 
INVESTMENT
OBJECTIVE               The International Equity Fund seeks to provide long-term
                      capital appreciation by investing primarily in a
                      diversified portfolio of equity securities of non-U.S.
                      issuers.
 
                        The investment objective and certain of the investment
                      limitations of the International Equity Fund may not be
                      changed without a vote of the holders of a majority of the
                      outstanding Shares of the Fund (as defined under GENERAL
                      INFORMATION--Miscellaneous below). There can be no
                      assurance that the Fund will achieve its investment
                      objective.
 
INVESTMENT
POLICIES                Under normal market conditions, at least 65% of the
                      Fund's assets will be invested in the following equity
                      securities of non-U.S. issuers: common stocks, securities
                      convertible into common stocks, preferred stocks, warrants
                      and rights to purchase common stock. Under normal market
                      conditions, at least 65% of the Fund's total assets will
                      be invested in securities of issuers organized under the
                      laws of at least five countries other than the United
                      States that are included in the Morgan Stanley Capital
                      International Europe, Australia and Far East Index (the
                      "EAFE Index").(1) Countries may be over- or under-weighted
                      in comparison to the EAFE Index based upon the Advisor's
                      and Sub-Advisors's view of forecasted rates of returns.
                      Regional and individual country weightings, therefore, may
                      vary from the EAFE Index benchmark. The Advisor and
                      Sub-Advisor will select individual securities for the Fund
                      on the basis of their growth opportunities or
                      undervaluation in relation to other securities. The Fund
                      expects its investments to emphasize companies with market
                      capitalizations in excess of $100,000,000.
 
- ---------------
 
    (1)"MSCI-EAFE Index" is a registered service mark of Morgan Stanley Capital
International which does not sponsor and is in no way affiliated with the
International Equity Fund.
 
                                        5
<PAGE>   7
 
                        The Fund will typically invest in equity securities
                      listed on recognized foreign exchanges, but may also
                      invest up to 15% of its total assets in securities traded
                      in over-the-counter markets. Equity securities of non-U.S.
                      issuers may also be purchased in the form of sponsored or
                      unsponsored American Depositary Receipts ("ADRs") and
                      sponsored or unsponsored European Depositary Receipts
                      ("EDRs").
 
                        The Fund may enter into forward foreign currency
                      contracts as a hedge against possible variations in
                      foreign exchange rates. A forward foreign currency
                      contract is a commitment to purchase or sell a specified
                      currency at a specified date, at a specified price. The
                      Fund may enter into forward foreign currency contracts to
                      hedge a specific security transaction or to hedge a
                      portfolio position. These contracts may be bought and sold
                      to protect the Fund, to some degree, against a possible
                      loss resulting from an adverse change in the relationship
                      between foreign currencies. The Fund may also invest in
                      options on currencies.
 
                        The premium paid on options on securities positions will
                      not exceed 10% of the Fund's net assets at the time such
                      options are entered into by the Fund. The aggregate
                      premium paid on all options on stock indices will not
                      exceed 20% of the Fund's total assets.
 
                        The Fund's remaining assets may be invested in
                      investment grade bonds and debentures issued by non-U.S.
                      or U.S. companies, obligations of supranational entities,
                      securities issued or guaranteed by foreign and U.S.
                      governments, and foreign and U.S. commercial paper.
                      Certain of these instruments may have floating or variable
                      interest rate provisions. In addition, the Fund may invest
                      in securities of issuers whose principal activities are in
                      countries with emerging markets. The Fund defines an
                      emerging market country as any country whose economy and
                      market the World Bank or the United Nations considers to
                      be emerging or developing. The Fund may also purchase
                      shares of closed-end investment companies that invest in
                      the securities of issuers in a single country or region
                      and shares of open-end management investment companies.
 
GENERAL               Money Market Instruments
 
                        Under normal market conditions, the International Equity
                      Fund may invest up to 35% of its total assets in money
                      market instruments. When market conditions indicate a
                      temporary "defensive" investment strategy as determined by
                      the Advisor, the Fund may invest more than 35% of its
                      total assets in money market instruments. The Fund will
                      not be pursuing its investment objective to the extent
                      that a substantial portion of its assets are invested in
                      money market instruments.
 
                                        6
<PAGE>   8
 
                      Illiquid and Restricted Securities
 
                        The International Equity Fund shall limit investment in
                      illiquid securities to 15% or less of its net assets.
                      Generally, an "illiquid security" is any security that
                      cannot be disposed of promptly and in the ordinary course
                      of business at approximately the amount at which the Fund
                      has valued the instrument. The absence of a trading market
                      can make it difficult to ascertain the market value of
                      illiquid securities. The Fund may purchase restricted
                      securities which have not been registered under the
                      Securities Act of 1933 (e.g., Rule 144A Securities and
                      Section 4(2) commercial paper) subject to policies
                      approved by the Board of Trustees. See INVESTMENT
                      RESTRICTIONS in the Statement of Additional Information.
 
                      Lending of Portfolio Securities
 
                        In order to generate additional income, the Fund may
                      lend its portfolio securities to broker-dealers, banks or
                      other institutions. The Fund may lend portfolio securities
                      in an amount representing up to 33 1/3% of the value of
                      the Fund's total assets.
 
                      Other Investments
 
                        The Fund may enter into repurchase agreements and
                      reverse repurchase agreements.
 
                        The International Equity Fund may enter into forward
                      commitments or purchase securities on a "when-issued"
                      basis. The International Equity Fund expects that
                      commitments by it to enter into forward commitments or
                      purchase when-issued securities will not exceed 25% of the
                      value of the Fund's total assets under normal market
                      conditions. The Fund does not intend to purchase when-
                      issued securities or forward commitments for speculative
                      or leveraging purposes but only for the purpose of
                      acquiring portfolio securities.
 
                        The International Equity Fund may invest up to 5% of its
                      total assets in the shares of any one registered
                      investment company, but may not own more than 3% of the
                      securities of any one registered investment company or
                      invest more than 10% of its assets in the securities of
                      other registered investment companies. In accordance with
                      an exemptive order issued to HighMark by the SEC, such
                      other registered investment company securities may include
                      shares of a money market fund of HighMark, and may include
                      registered investment companies for which the Advisor or
                      Sub-Advisor to a Fund of HighMark, or an affiliate of such
                      Advisor or Sub-Advisor, serves as investment advisor,
                      administrator or distributor. Because other investment
                      companies employ an investment advisor, such investment by
                      a Fund may cause Shareholders to bear duplicative fees.
                      The Advisor will waive its fees attributable to the assets
                      of the investing Fund invested
 
                                        7
<PAGE>   9
 
                      in a money market fund of HighMark, and, to the extent
                      required by applicable law, the Advisor will waive its
                      fees attributable to the assets of the Fund invested in
                      any investment company. Some Funds are subject to
                      additional restrictions on investment in other investment
                      companies. See "INVESTMENT RESTRICTIONS" in the Statement
                      of Additional Information.
 
                        The Fund may invest in futures and options on futures
                      for the purpose of achieving the Fund's objectives. The
                      Fund may invest in futures and related options based on
                      any type of security or index traded on U.S. or foreign
                      exchanges or over the counter, as long as the underlying
                      security or securities represented by an index, are
                      permitted investments of the Fund. Such futures contracts
                      may include index contracts and contracts for foreign
                      currencies. The Fund may enter into futures contracts and
                      options on futures only to the extent that its obligations
                      under such contracts or transactions, together with
                      options on securities or indices represent not more than
                      25% of the Fund's assets.
 
                        For further information, see "DESCRIPTION OF PERMITTED
                      INVESTMENTS."
 
                      Risk Factors
 
                        Since the Fund invests in equity securities, the Fund's
                      Shares will fluctuate in value, and thus may be more
                      suitable for long-term investors who can bear the risk of
                      short-term fluctuations.
 
                        There may be certain risks connected with investing in
                      foreign securities, including risks of adverse political
                      and economic developments (including possible governmental
                      seizure or nationalization of assets), the possible
                      imposition of exchange controls or other governmental
                      restrictions, including less uniformity in accounting and
                      reporting requirements, the possibility that there will be
                      less information on such securities and their issuers
                      available to the public, the difficulty of obtaining or
                      enforcing court judgments abroad, restrictions on foreign
                      investments in other jurisdictions, difficulties in
                      effecting repatriation of capital invested abroad, and
                      difficulties in transaction settlements and the effect of
                      delay on shareholder equity. Foreign securities may be
                      subject to foreign taxes, which reduce yield, and may be
                      less marketable than comparable U.S. securities. The value
                      of the Fund's investments denominated in foreign
                      currencies will depend on the relative strengths of those
                      currencies and the U.S. dollar, and the Fund may be
                      affected favorably or unfavorably by changes in the
                      exchange rates or exchange control regulations between
                      foreign currencies and the U.S. dollar. Changes in foreign
                      currency exchange rates may also affect the value of
                      dividends and interest earned, gains and losses realized
                      on the sale of securities, and net investment income and
                      gains, if any, to be distributed to Shareholders by the
                      Fund.
 
                                        8
<PAGE>   10
 
                        Forward foreign currency contracts do not eliminate
                      fluctuations in the underlying prices of securities.
                      Rather, they simply establish a rate of exchange which one
                      can achieve at some future point in time. Additionally,
                      although such contracts tend to minimize the risk of loss
                      due to a decline in the value of the hedged currency at
                      the same time, they tend to limit any potential gain which
                      might result, should the value of such currency increase.
 
                        The Fund's investments in emerging markets can be
                      considered speculative, and therefore, may offer higher
                      potential for gains and losses than developed markets of
                      the world. With respect to any emerging country, there is
                      the greater potential for nationalization, expropriation
                      or confiscatory taxation, political changes, government
                      regulation, social instability or diplomatic developments
                      (including war) which could affect adversely the economies
                      of such countries or investments in such countries. In
                      addition, it may be difficult to obtain and enforce a
                      judgment in the courts of such countries. The economies of
                      developing countries generally are heavily dependent upon
                      international trade and, accordingly, have been and may
                      continue to be adversely affected by trade barriers,
                      exchange controls, managed adjustments in relative
                      currency values and other protectionist measures imposed
                      or negotiated by the countries with which they trade.
 
                        Securities rated BBB by Standard & Poor's Corporation
                      ("S&P") or Baa by Moody's Investors Service, Inc.
                      ("Moody's") are deemed by these ratings services to have
                      some speculative characteristics and adverse economic
                      conditions or other circumstances are more likely to lead
                      to a weakened capacity to make principal and interest
                      payments than is the case with higher grade bonds.
 

INVESTMENT              The International Equity Fund may not:
LIMITATIONS
                        1) Purchase securities of any one issuer, other than
                      obligations issued or guaranteed by the U.S. Government,
                      its agencies, or instrumentalities, and repurchase
                      agreements involving such securities if, immediately after
                      the purchase, more than 5% of the value of the Fund's
                      total assets would be invested in the issuer or the Fund
                      would hold more than 10% of any class of securities of the
                      issuer or more than 10% of the issuer's outstanding voting
                      securities (except that up to 25% of the value of the
                      Fund's total assets may be invested without regard to
                      these limitations). For purposes of this investment
                      limitation, each foreign governmental issuer is deemed a
                      separate issuer.
 
                        2) Purchase any securities that would cause more than
                      25% of the Fund's total assets at the time of purchase to
                      be invested in securities of one or more issuers
                      conducting their principal business activities in the same
                      industry, provided that (a) there is no limitation with
                      respect to obligations issued or guaranteed by the U.S. or
                      foreign governments or their agencies or instrumentalities
                      and repurchase
 
                                        9
<PAGE>   11
 
                      agreements secured by obligations of the U.S. Government
                      or its agencies or instrumentalities; (b) wholly owned
                      finance companies will be considered to be in the
                      industries of their parents if their activities are
                      primarily related to financing the activities of their
                      parents; and (c) utilities will be divided according to
                      their services (for example, gas, gas transmission,
                      electric and gas, electric, and telephone will each be
                      considered a separate industry);
 
                        3) Make loans, except that the Fund may purchase or hold
                      debt instruments, lend portfolio securities, and enter
                      into repurchase agreements in accordance with its
                      investment objective and policies.
 
                        The foregoing percentages will apply at the time of the
                      purchase of a security. The investment limitations listed
                      above are fundamental policies the substance of which may
                      not be changed without a vote of a majority of the
                      outstanding Shares of the Fund. Additional fundamental and
                      non-fundamental investment limitations are set forth in
                      the Statement of Additional Information.
 
                      Portfolio Turnover
 
                        The Fund's portfolio turnover rate will not be a factor
                      preventing a sale or purchase when the Advisor believes
                      investment considerations warrant. The Fund's portfolio
                      turnover rate may vary greatly from year to year as well
                      as within a particular year. High portfolio turnover rates
                      generally will result in correspondingly higher brokerage
                      and other transactions costs to the Fund and could involve
                      the realization of capital gains that would be taxable
                      when distributed to Shareholders of the Fund. See FEDERAL
                      TAXATION.
 
PURCHASE AND
REDEMPTION
OF SHARES               Fiduciary Shares may be purchased at net asset value.
                      Only the following investors qualify to purchase the
                      International Equity Fund's Fiduciary Shares: (i)
                      fiduciary, advisory, agency, custodial and other similar
                      accounts maintained with Union Bank of California, N.A. or
                      its affiliates; (ii) Select IRA accounts established with
                      The Bank of California, N.A. and invested in any of
                      HighMark's Equity or Income Funds prior to June 20, 1994,
                      which have remained continuously open thereafter and which
                      are not considered to be fiduciary accounts; (iii)
                      Shareholders who currently own Shares of HighMark's Equity
                      or Income Funds that were purchased prior to June 20, 1994
                      within an account registered in their name with the Funds;
                      and (iv) present and retired directors, officers and
                      employees (and their spouses and children under the age of
                      21) of Union Bank of California, N.A., HighMark's current
                      or former distributors or their respective affiliated
                      companies who currently own Shares of HighMark Funds which
                      were purchased before April 30, 1997.
 
                        Purchases and redemptions of Shares of the International
                      Equity Fund may be made on days on which both the New York
                      Stock Exchange and Federal Reserve
 
                                       10
<PAGE>   12
 
                      wire system are open for business ("Business Days"). The
                      minimum initial investment is generally $1,000 and the
                      minimum subsequent investment is generally only $100. For
                      present and retired directors, officers, and employees
                      (and their spouses and children under the age of 21) of
                      Union Bank of California, SEI Financial Services Company
                      and their affiliates, the minimum initial investment is
                      $250 and the minimum subsequent investment is $50. The
                      Fund's initial and subsequent minimum purchase amounts may
                      be waived if purchases are made in connection with
                      Individual Retirement Accounts, Keoghs, payroll deduction
                      plans, or 401(k) or similar plans. However, the minimum
                      investment may be waived in the Distributor's discretion.
                      Shareholders may place orders by telephone.
 
                        Purchase orders will be effective if the Distributor
                      receives an order before 1:00 p.m., Pacific time (4:00
                      p.m., Eastern time) and the custodian receives Federal
                      funds before the close of business on the next Business
                      Day. The purchase price of Shares of a Fund is the net
                      asset value next determined after a purchase order is
                      received and accepted by HighMark. The net asset value per
                      Share of a Fund is determined by dividing the total market
                      value of a Fund's investments and other assets, less any
                      liabilities, by the total number of outstanding Shares of
                      a Fund. Net asset value per share is determined daily as
                      of 1:00 p.m., Pacific time (4:00 p.m., Eastern time) on
                      any Business Day. Purchases will be made in full and
                      fractional shares of HighMark calculated to three decimal
                      places. HighMark reserves the right to reject a purchase
                      order when the Distributor determines that it is not in
                      the best interest of HighMark and/or its Shareholders to
                      accept such order.
 
                        Shares of the International Equity Fund are offered only
                      to residents of states in which the shares are eligible
                      for purchase.
 
                        Shareholders who desire to redeem shares of HighMark
                      must place their redemption orders prior to 1:00 p.m.,
                      Pacific time (4:00 p.m., Eastern time), on any Business
                      Day for the order to be accepted on that Business Day. The
                      redemption price is the net asset value of the Fund next
                      determined after receipt by the Distributor of the
                      redemption order. Payment on redemption will be made as
                      promptly as possible and, in any event, within seven
                      calendar days after the redemption order is received. The
                      Fund reserves the right to make payment for redemptions in
                      securities rather than cash.
 
                        Neither HighMark's transfer agent nor HighMark will be
                      responsible for any loss, liability, cost or expense for
                      acting upon wire instructions or upon telephone
                      instructions that it reasonably believes to be genuine.
                      HighMark and its transfer agent will each employ
                      reasonable procedures to confirm that telephone
                      instructions are genuine. Such procedures may include
                      taping of telephone conversations. If market conditions
                      are extraordinarily active or other extraordinary
 
                                       11
<PAGE>   13
 
                      circumstances exist, and you experience difficulties
                      placing redemption orders by telephone, you may wish to
                      consider placing your order by other means.
 
EXCHANGE
PRIVILEGES              As indicated under GENERAL INFORMATION--Description of
                      HighMark & Its Shares, certain of HighMark's Funds issue
                      two classes of Shares (Retail Shares and Fiduciary
                      Shares); as of the date of this Prospectus, the
                      Distribution Plan and distribution fee payable thereunder
                      are applicable only to such Fund's Retail Shares. A
                      Shareholder's eligibility to exchange into a particular
                      class of Shares will be determined at the time of the
                      exchange. The Shareholder must supply, at the time of the
                      exchange, the necessary information to permit confirmation
                      of qualification.
 
                        Each Fund's Shares may be exchanged for Shares of the
                      class of the various other Funds of HighMark which the
                      Shareholder qualifies to purchase directly so long as the
                      Shareholder maintains the applicable minimum account
                      balance in each Fund in which he or she owns Shares and
                      satisfies the minimum initial and subsequent purchase
                      amounts of the Fund into which the Shares are exchanged.
                      Shareholders may exchange their Fiduciary Shares for
                      Fiduciary Shares of another Fund on the basis of the
                      relative net asset value of the Fiduciary Shares
                      exchanged. Shareholders may also exchange Fiduciary Shares
                      of a Fund for Retail Shares of another Fund. Under such
                      circumstances, the cost of the acquired Retail Shares will
                      be the net asset value per share plus the appropriate
                      sales load.
 
                        Exchanges will be made on the basis of the relative net
                      asset values of the Shares exchanged plus any applicable
                      sales charge. Exchanges are subject to the terms and
                      conditions stated herein and the terms and conditions
                      stated in the respective prospectuses of the Funds.
 
                        Certain entities (including participating organizations
                      and Union Bank of California and its affiliates), however,
                      may charge customers a fee with respect to exchanges made
                      on the customer's behalf. Information about these charges,
                      if any, can be obtained by the entity effecting the
                      exchange and this Prospectus should be read in conjunction
                      with that information.
 
                        A Shareholder wishing to exchange Shares in the
                      International Equity Fund may do so by contacting the
                      transfer agent at 1-800-433-6884. Exchanges will be
                      effected on any Business Day at the net asset value of the
                      Funds involved in the exchange next determined after the
                      exchange request is received by the transfer agent.
 
                        An exchange is considered to be a sale of Shares for
                      federal income tax purposes on which a Shareholder may
                      realize a capital gain or loss. Exchange privileges may be
                      exercised only in those states where Shares of such other
                      Funds
 
                                       12
<PAGE>   14
 
                      of HighMark may legally be sold. HighMark may materially
                      amend or terminate the exchange privileges described
                      herein upon sixty days' notice.
 
DIVIDENDS               Substantially all of the net investment income
                      (exclusive of capital gains) of the Fund is periodically
                      declared and paid as a dividend to Shareholders of record.
                      Currently, capital gains of the Fund, if any, will be
                      distributed at least annually.
 
                        Shareholders will automatically receive all income
                      dividends and capital gains distributions in additional
                      full and fractional Shares of the Fund at net asset value
                      as of the date of declaration (which is also the
                      ex-dividend date), unless the Shareholder elects to
                      receive such dividends or distributions in cash.
                      Shareholders wishing to receive their dividends in cash
                      (or wishing to revoke a previously made election) must
                      notify the transfer agent at P.O. Box 8416, Boston, MA
                      02266-8416, and such election (or revocation thereof) will
                      become effective with respect to dividends and
                      distributions having record dates after notice has been
                      received. Dividends paid in additional Shares receive the
                      same tax treatment as dividends paid in cash.
 
FEDERAL
TAXATION                The International Equity Fund intends to qualify for
                      treatment as a "regulated investment company" under the
                      Internal Revenue Code of 1986, as amended (the "Code"),
                      and to distribute substantially all of its net investment
                      income and net realized capital gains so that the Fund is
                      not required to pay federal taxes on these amounts.
 
                        Distributions of ordinary income and/or an excess of net
                      short-term capital gain over net long-term capital loss
                      are treated for federal income tax purposes as ordinary
                      income to Shareholders. The 70 percent dividends received
                      deduction for corporations generally will apply to these
                      distributions to the extent the distribution represents
                      amounts that would qualify for the dividends received
                      deduction when received by the Fund if the Fund were a
                      regular corporation, and to the extent designated by the
                      Fund as so qualifying. Distributions by the Fund of the
                      excess of net long-term capital gain over net short-term
                      capital loss is taxable to Shareholders as long-term
                      capital gain in the year with respect to which it is
                      received, regardless of how long the Shareholder has held
                      Shares of the Fund. Such distributions are not eligible
                      for the dividends received deduction. If a Shareholder
                      disposes of Shares in the Fund at a loss before holding
                      such Shares for longer than six months, such loss will be
                      treated as a long-term capital loss to the extent the
                      Shareholder has received long-term capital gain dividends
                      on the Shares.
 
                        Prior to purchasing Shares of the International Equity
                      Fund, the impact of dividends or capital gain
                      distributions that are expected to be declared or have
 
                                       13
<PAGE>   15
 
                      been declared, but not paid, should be carefully
                      considered. Dividends or capital gain distributions
                      received after a purchase of Shares are subject to federal
                      income taxes, although in some circumstances, the
                      dividends or distributions may be, as an economic matter,
                      a return of capital to the Shareholder. A Shareholder
                      should consult his or her advisor for specific advice
                      about the tax consequences to the Shareholder of investing
                      in the Fund.
 
                        Fund investments in foreign securities may be subject to
                      withholding taxes at the source on dividend or interest
                      payments. In that case, the Fund's yield on those
                      securities would be decreased. If at the end of the Fund's
                      fiscal year more than 50% of the value of its total assets
                      represents securities of foreign corporations, the Fund
                      intends to make an election permitted by the Internal
                      Revenue Code to treat any foreign taxes paid by it as paid
                      by its Shareholders. In this case, Shareholders who are
                      U.S. citizens, U.S. corporations and, in some cases, U.S.
                      residents generally will be required to include in U.S.
                      taxable income their pro rata share of such taxes, but may
                      then generally be entitled to claim a foreign tax credit
                      or deduction (but not both) for their share of such taxes.
 
                        Fund transactions in foreign currencies and hedging
                      activities may give rise to ordinary income or loss to the
                      extent such income or loss results from fluctuations in
                      value of the foreign currency concerned. In addition, such
                      activities will likely produce a difference between book
                      income and taxable income. This difference may cause a
                      portion of the Fund's income distributions to constitute a
                      return of capital for tax purposes or require the Fund to
                      make distributions exceeding book income to qualify as a
                      regulated investment company for tax purposes.
 
                        Investment in an entity that qualifies as a "passive
                      foreign investment company" under the Code could subject
                      the Fund to a U.S. federal income tax or other charge on
                      certain "excess distributions" received with respect to
                      the investment, and on the proceeds from disposition of
                      the investment.
 
                        Additional information regarding federal taxes is
                      contained in the Statement of Additional Information.
                      However, the foregoing and the material in the Statement
                      of Additional Information are only brief summaries of some
                      of the important tax considerations generally affecting
                      the Fund and its Shareholders. In addition, the foregoing
                      discussion and the federal tax information in the
                      Statement of Additional Information are based on tax laws
                      and regulations which are in effect as of the date of this
                      Prospectus; these laws and regulations may subsequently
                      change, and such changes could be retroactive.
 
                        Shareholders will be advised at least annually as to the
                      federal income tax status of distributions made during the
                      year.
 
                                       14
<PAGE>   16
 
SERVICE
ARRANGEMENTS          The Advisor
 
                        Pacific Alliance Capital Management, a division of Union
                      Bank of California, N.A., serves as the International
                      Equity Fund's investment advisor. Subject to the general
                      supervision of HighMark's Board of Trustees, the Advisor
                      manages the Fund in accordance with its investment
                      objective and policies, makes decisions with respect to
                      and places orders for all purchases and sales of the
                      Fund's investment securities, and maintains the Fund's
                      records relating to such purchases and sales.
 
                        For the expenses assumed and services provided by the
                      Advisor as the Fund's investment advisor, Union Bank of
                      California receives a fee from the International Equity
                      Fund, computed daily and paid monthly, at the annual rate
                      of ninety-five one-hundredths of one percent (.95%) of the
                      Fund's average daily net assets. This fee may be higher
                      than the advisory fee paid by most mutual funds, although
                      the Board of Trustees believes it will be comparable to
                      advisory fees paid by many funds having similar objectives
                      and policies. Union Bank of California may from time to
                      time agree to voluntarily reduce its advisory fee,
                      however, it is not currently doing so. While there can be
                      no assurance that Union Bank of California will choose to
                      make such an agreement, any voluntary reductions in Union
                      Bank of California's advisory fee will lower the Fund's
                      expenses, and thus increase the Fund's yield and total
                      return, during the period such voluntary reductions are in
                      effect.
 
                        On April 1, 1996, the Bank of California, N.A.,
                      HighMark's then investment advisor, combined with Union
                      Bank and the resulting bank changed its name to Union Bank
                      of California, N.A. At the same time, the banks'
                      investment management divisions were combined. Each of
                      Union Bank and The Bank of California, N.A. (or their
                      predecessor banks) has been in banking since the early
                      1900's and, historically, each has had significant
                      investment functions within its trust and investment
                      division. UnionBanCal Corporation, the parent of Union
                      Bank of California, N.A., is a publicly held corporation,
                      but is principally held by The Bank of Tokyo-Mitsubishi,
                      Ltd. As of September 30, 1996, Union Bank of California
                      and its subsidiaries had approximately $28.7 billion in
                      commercial assets. Pacific Alliance Capital Management is
                      a division of Union Bank of California's Trust and
                      Investment Management Group which, as of June 30 1996, had
                      approximately $13.4 billion of assets under management.
                      The Advisor, with a team of approximately 45 stock and
                      bond research analysts, portfolio managers and traders,
                      has been providing investment management services to
                      individuals, institutions and large corporations since
                      1917.
 
                                       15
<PAGE>   17
 
                      The Sub-Advisor
 
                        The Advisor and Tokyo-Mitsubishi Asset Management
                      (U.K.), Ltd. (the "Sub-Advisor"), have entered into an
                      investment subadvisory agreement relating to the Fund (the
                      "Investment Sub-Advisory Agreement"). Under the Investment
                      Sub-Advisory Agreement, the Sub-Advisor makes the
                      day-to-day investment decisions for the assets of the
                      Fund, subject to the supervision of, and policies
                      established by, the Advisor and the Trustees of HighMark.
                      HighMark's Shares are not sponsored, endorsed or
                      guaranteed by and do not constitute obligations or
                      deposits of the Sub-Advisor and are not guaranteed by the
                      FDIC or any other governmental agency.
 
                        Tokyo-Mitsubishi Asset Management (U.K.), Ltd., 12-15
                      Finsbury Circus, London EC2 M7BT operates as a subsidiary
                      of The Bank of Tokyo-Mitsubishi, Ltd. Established in 1989,
                      the Sub-Advisor provides active global investment services
                      for segregated funds and specialist fund management.
 
                        Prior to February 1995 the Sub-Advisor had not
                      previously served as the investment advisor to mutual
                      funds. As of April 1, 1996 Tokyo-Mitsubishi Asset
                      Management (U.K.), Ltd., managed assets of $2.2 billion in
                      individual portfolios and collective funds.
 
                        The Sub-Advisor is entitled to a fee, which is
                      calculated daily and paid monthly out of the Advisor's
                      fee, at an annual rate of .30% of the average daily net
                      assets of the Fund.
 
                        Andrew Richmond has served as portfolio manager of the
                      Fund since its inception. Mr. Richmond has been with the
                      SubAdvisor and its predecessor, Bank of Tokyo Asset
                      Management (U.K.), Ltd., since 1990, and has served as
                      senior equity investment manager since June, 1992.
 
                      Administrator
 
                        SEI Fund Resources (the "Administrator") and HighMark
                      are parties to an administration agreement (the
                      "Administration Agreement"). Under the terms of the
                      Administration Agreement, the Administrator provides
                      HighMark with certain management services, including all
                      necessary office space, equipment, personnel, and
                      facilities.
 
                        The Administrator is entitled to a fee, which is
                      calculated daily and paid monthly, at an annual rate of
                      .20% of the average daily net assets of the Funds. The
                      Administrator may waive its fee or reimburse various
                      expenses to the extent necessary to limit the total
                      operating expenses of a Fund's Fiduciary Shares. Any such
                      waiver is voluntary and may be terminated at any time in
                      the Administrator's sole discretion. Currently, the
                      Administrator has agreed to waive its fee to the rate of
                      .18% of the average daily net assets of the Funds.
 
                                       16
<PAGE>   18
 
                        Pursuant to a separate agreement with the Administrator,
                      Union Bank of California, N.A. performs sub-administration
                      services on behalf of the Fund, for which it receives a
                      fee paid by the Administrator at the annual rate of up to
                      0.05% of the average daily net assets of the Fund. Union
                      Bank of California has voluntarily agreed to reduce this
                      fee to 0.03%, but reserves the right to terminate its
                      waiver at any time in its sole discretion. A description
                      of the services performed by Union Bank of California
                      pursuant to this Agreement is contained in the Statement
                      of Additional Information.
 
                      The Transfer Agent
 
                        State Street Bank and Trust Company serves as the
                      transfer agent, dividend disbursing agent, and as a
                      shareholder servicing agent for the Fiduciary Shares of
                      HighMark, for which services it receives a fee.
 
                      Shareholder Service Plan
 
                        To support the provision of Shareholder services to both
                      classes of Shares, HighMark has adopted a Shareholder
                      Service Plan. A description of the services performed by
                      service providers pursuant to the Shareholder Service Plan
                      is contained in the Statement of Additional Information.
                      In consideration of services provided by any service
                      provider, which may include Union Bank of California,
                      N.A., Bank of Tokyo-Mitsubishi, Ltd., or their respective
                      affiliates, the Fund may pay a fee at the rate of up to
                      0.25% of its average daily net assets to such service
                      provider. The service provider may waive such fees at any
                      time. Any such waiver is voluntary and may be terminated
                      at any time. Currently, such fees are being waived to the
                      rate of 0.00% of average daily net assets.
 
                      Distributor
 
                        SEI Financial Services Company (the "Distributor") and
                      HighMark are parties to a distribution agreement
                      ("Distribution Agreement"). The Distribution Agreement is
                      renewable annually and may be terminated by the
                      Distributor, by a majority vote of the Disinterested
                      Trustees or by a majority vote of the outstanding
                      securities of HighMark upon not more than 60 days written
                      notice by either party, or upon assignment by the
                      Distributor. Fiduciary Shares are not subject to
                      HighMark's Distribution Plan or a distribution fee.
 
                      Banking Laws
 
                        Union Bank of California believes that it may perform
                      the services for the Fund contemplated by its investment
                      advisory agreement with HighMark without a violation of
                      applicable banking laws and regulations. Union Bank of
                      California also believes that it may perform
                      sub-administration and sub-accounting services on behalf
                      of the Fund without a violation of applicable banking laws
                      and regulations. Future changes in federal or state
                      statutes and regulations relating to
 
                                       17
<PAGE>   19
 
                      permissible activities of banks or bank holding companies
                      and their subsidiaries and affiliates, as well as further
                      judicial or administrative decisions or interpretations of
                      present and future statutes and regulations, could change
                      the manner in which Union Bank of California or the
                      Advisor could continue to perform such services for the
                      Fund. For a further discussion of applicable banking laws
                      and regulations, see the Statement of Additional
                      Information.
 
                      Custodian
 
                        Union Bank of California also serves as the custodian
                      and as a shareholder servicing agent for the International
                      Equity Fund. The custodian holds cash, securities and
                      other assets of HighMark as required by the 1940 Act.
 
                        Services performed by Union Bank of California, as the
                      Fund's shareholder servicing agent and custodian, as well
                      as the basis of remuneration for such services, are
                      described in the Statement of Additional Information.
 
GENERAL
INFORMATION           Description of HighMark & Its Shares
 
                        HighMark was organized as a Massachusetts business trust
                      on March 10, 1987, and consists of sixteen series of
                      Shares open for investment representing units of
                      beneficial interest in HighMark's Growth Fund, Income
                      Equity Fund, Balanced Fund, Value Momentum Fund, Blue Chip
                      Growth Fund, Emerging Growth Fund, International Equity
                      Fund, Bond Fund, Intermediate-Term Bond Fund, Government
                      Securities Fund, Convertible Securities Fund, California
                      Intermediate Tax-Free Bond Fund, Diversified Money Market
                      Fund, U.S. Government Obligations Money Market Fund, 100%
                      U.S. Treasury Obligations Money Market Fund, and
                      California Tax-Free Money Market Fund. As of the date
                      hereof, no Shares of the Value Momentum Fund, the Blue
                      Chip Growth Fund, the Emerging Growth Fund, the
                      International Equity Fund, the Intermediate-Term Bond
                      Fund, the Convertible Securities Fund, the Government
                      Securities Fund and the California Intermediate Tax-Free
                      Bond Fund had been offered for sale in HighMark. Shares of
                      each Fund are freely transferable, are entitled to
                      distributions from the assets of the Fund as declared by
                      the Board of Trustees, and, if HighMark were liquidated,
                      would receive a pro rata share of the net assets
                      attributable to that Fund. Shares are without par value.
 
                        As noted above, pursuant to a Multiple Class Plan on
                      file with the Securities and Exchange Commission
                      permitting the issuance and sale of two classes of Shares
                      in selected Funds, Shares of such Funds have been divided
                      into two classes, designated Retail Shares and Fiduciary
                      Shares. For information regarding the Retail Shares,
                      interested persons may contact the Distributor at
                      1-800-433-6884.
 
                                       18
<PAGE>   20
 
                      Performance Information
 
                        From time to time, HighMark may advertise the aggregate
                      total return, average annual total return, yield and
                      distribution rate with respect to the Fiduciary Shares of
                      the International Equity Fund.
 
                        The aggregate total return and average annual total
                      return of the Fund may be quoted for the life of the Fund
                      and for ten-year, five-year, three-year, and one-year
                      periods, in each case through the most recent calendar
                      quarter. Aggregate total return is determined by
                      calculating the change in the value of a hypothetical
                      $1,000 investment in the Fund over the applicable period
                      that would equate the initial amount invested to the
                      ending redeemable value of the investment. The ending
                      redeemable value includes dividends and capital gain
                      distributions reinvested at net asset value. Average
                      annual total return is calculated by annualizing the
                      Fund's aggregate total return over the relevant number of
                      years. The resulting percentage indicates the average
                      positive or negative investment results that an investor
                      in the Fund would have experienced on an annual basis from
                      changes in Share price and reinvestment of dividends and
                      capital gain distributions.
 
                        The yield of the Fund is determined by annualizing the
                      net investment income per Share of the Fund during a
                      specified thirty-day period and dividing that amount by
                      the per Share public offering price of the Fund on the
                      last day of the period.
 
                        The distribution rate of the Fund is determined by
                      dividing the income and capital gains distributions, or
                      where indicated the income distributions alone, on a Share
                      of the Fund over a twelve-month period by the per Share
                      public offering price of the Fund on the last day of the
                      period.
 
                        Each Fund may periodically compare its performance to
                      the performance of other mutual funds tracked by mutual
                      fund rating services (such as Lipper Analytical);
                      financial and business publications and periodicals; broad
                      groups of comparable mutual funds; unmanaged indices which
                      may assume investment of dividends but generally do not
                      reflect deductions for administrative and management
                      costs, or other investment alternatives. Certain Funds may
                      advertise performance that includes results from periods
                      in which the Fund's assets were managed in a
                      non-registered predecessor vehicle.
 
                        All performance information presented for the Fund is
                      based on past performance and does not predict future
                      performance.
 
                      Miscellaneous
 
                        Shareholders will be sent unaudited semi-annual reports
                      and annual reports audited by independent public
                      accountants.
 
                                       19
<PAGE>   21
 
                        Shareholders are entitled to one vote for each Share
                      held in a Fund as determined on the record date for any
                      action requiring a vote by the Shareholders, and a
                      proportionate fractional vote for each fractional Share
                      held. Shareholders of HighMark will vote in the aggregate
                      and not by series or class except (i) as otherwise
                      expressly required by law or when HighMark's Board of
                      Trustees determines that the matter to be voted upon
                      affects only the interests of the Shareholders of a
                      particular series or particular class, and (ii) only
                      Retail Shares will be entitled to vote on matters
                      submitted to a Shareholder vote relating to the
                      Distribution Plan. HighMark is not required to hold
                      regular annual meetings of Shareholders, but may hold
                      special meetings from time to time.
 
                        HighMark's Trustees are elected by Shareholders, except
                      that vacancies may be filled by vote of the Board of
                      Trustees. Trustees may be removed by the Board of
                      Trustees, or by Shareholders at a meeting called for such
                      purpose. For information about how Shareholders may call
                      such a meeting and communicate with other Shareholders for
                      that purpose, see ADDITIONAL INFORMATION--Miscellaneous in
                      the Statement of Additional Information. Inquiries may be
                      directed in writing to SEI Financial Services Company,
                      Oaks, Pennsylvania 19456, or by calling toll free
                      1-800-433-6884.
 
DESCRIPTION OF
PERMITTED
INVESTMENTS             The following is a description of permitted investments
                      for the HighMark International Equity Fund.
 
                        AMERICAN DEPOSITARY RECEIPTS (ADRs) and EUROPEAN
                      DEPOSITARY RECEIPTS ("EDRs")--Receipts, typically issued
                      by a U.S. financial institution (a "depositary"), that
                      evidence ownership interests in a security or a pool of
                      securities issued by a foreign issuer and deposited with
                      the depositary. ADRs include American Depositary Shares
                      and New York Shares. EDRs, which are sometimes referred to
                      as Continental Depositary Receipts ("CDRs'), are receipts,
                      typically issued by a non-U.S. financial institution, that
                      evidence ownership interests in a security or a pool of
                      securities issued by either a U.S. or foreign issuer.
                      ADRs, EDRs and CDRs may be available for investment
                      through "sponsored" or "unsponsored" facilities. A
                      sponsored facility is established jointly by the issuer of
                      the security underlying the receipt and a depositary,
                      whereas an unsponsored facility may be established by a
                      depositary without participation by the issuer of the
                      receipt's underlying security. Holders of an unsponsored
                      depositary receipt generally bear all the costs of the
                      unsponsored facility. The depositary of an unsponsored
                      facility frequently is under no obligation to distribute
                      shareholder communications received from the issuer of the
                      deposited security or to pass through to the holders of
                      the receipts voting rights with respect to the deposited
                      securities.
 
                                       20
<PAGE>   22
 
                        ASSET-BACKED SECURITIES (NON-MORTGAGE)--Instruments
                      secured by company receivables, truck and auto loans,
                      leases, and credit card receivables. Such securities are
                      generally issued as pass-through certificates, which
                      represent undivided fractional ownership interests in the
                      underlying pools of assets. Such securities also may be
                      debt instruments, which are also known as collateralized
                      obligations and are generally issued as the debt of a
                      special purpose entity, such as a trust, organized solely
                      for the purpose of owning such assets and issuing such
                      debt. The purchase of non-mortgage assetbacked securities
                      raises risk considerations peculiar to the financing of
                      the instruments underlying such securities. Asset-backed
                      securities entail prepayment risk, which may vary
                      depending on the type of asset, but is generally less than
                      the prepayment risk associated with mortgage-backed
                      securities.
 
                        Like mortgages underlying mortgage-backed securities,
                      underlying automobile sales contracts or credit card
                      receivables are subject to substantial prepayment risk,
                      which may reduce the overall return to certificate
                      holders. Nevertheless, principal prepayment rates tend not
                      to vary as much in response to changes in interest rates
                      and the short-term nature of the underlying car loans or
                      other receivables tend to dampen the impact of any change
                      in the prepayment level. Certificate holders may also
                      experience delays in payment on the certificates if the
                      full amounts due on underlying sales contracts or
                      receivables are not realized by the trust because of
                      unanticipated legal or administrative costs of enforcing
                      the contracts or because of depreciation or damage to the
                      collateral (usually automobiles) securing certain
                      contracts, or other factors. If consistent with their
                      investment objectives and policies, the Fund may invest in
                      other asset-backed securities that may be developed in the
                      future.
 
                        BANKERS' ACCEPTANCES--Bills of exchange or time drafts
                      drawn on and accepted by commercial banks. They are used
                      by corporations to finance the shipment and storage of
                      goods and to furnish dollar exchange. Maturities are
                      generally six months or less.
 
                        CERTIFICATES OF DEPOSIT--Negotiable interest-bearing
                      instruments with a specific maturity. Certificates of
                      deposit are issued by banks and savings and loan
                      institutions in exchange for the deposit of funds and
                      normally can be traded in the secondary market prior to
                      maturity.
 
                        COMMERCIAL PAPER--Unsecured short-term promissory notes
                      issued by corporations and other entities. Maturities on
                      these issues vary from a few days to nine months. Purchase
                      of such instruments involves a risk of default by the
                      issuer.
 
                        CONVERTIBLE BONDS AND CONVERTIBLE PREFERRED STOCK--
                      Convertible Bonds are bonds convertible into a set number
                      of shares of another form of security (usually common
                      stock) at a prestated price. Convertible bonds
 
                                       21
<PAGE>   23
 
                      have characteristics similar to both fixed-income and
                      equity securities. Convertible preferred stock is a class
                      of capital stock that pays dividends at a specified rate
                      and that has preference over common stock in the payment
                      of dividends and the liquidation of assets. Convertible
                      preferred stock is preferred stock exchangeable for a
                      given number of common stock shares, and has
                      characteristics similar to both fixed-income and equity
                      securities. Because of the conversion feature, the market
                      value of convertible bonds and convertible preferred stock
                      tend to move together with the market value of the
                      underlying stock. As a result, a Fund's selection of
                      convertible bonds and convertible preferred stock is
                      based, to a great extent, on the potential for capital
                      appreciation that may exist in the underlying stock. The
                      value of convertible bonds and convertible preferred stock
                      is also affected by prevailing interest rates, the credit
                      quality of the issuer and any call provisions.
 
                        DERIVATIVES--Instruments whose value is derived from an
                      underlying contract, index or security, or any combination
                      thereof, including futures, options (e.g., puts and
                      calls), options on futures, swap agreements, and some
                      mortgage-backed securities (CMOs, REMICs, IOs and POs).
                      See elsewhere in this "DESCRIPTION OF PERMITTED
                      INVESTMENTS" for discussions of these various instruments,
                      and see "INVESTMENT OBJECTIVES" and "INVESTMENT POLICIES"
                      for more information about any policies and limitations
                      applicable to their use.
 
                        FORWARD FOREIGN CURRENCY CONTRACTS--The Fund may conduct
                      its foreign currency exchange transactions on a spot
                      (i.e., cash) basis at the spot rate prevailing in the
                      foreign currency exchange market or through entering into
                      forward currency contracts to protect against uncertainty
                      in the level of future exchange rates between particular
                      currencies or between foreign currencies in which the
                      Fund's securities are or may be denominated. A forward
                      contract involves an obligation to purchase or sell a
                      specific currency amount at a future date, which may be
                      any fixed number of days from the date of the contract,
                      agreed upon by the parties, at a price set at the time of
                      the contract. Under normal circumstances, consideration of
                      the prospect for changes in currency exchanges rates will
                      be incorporated into the Fund's long-term investment
                      strategies. However, the Advisor and Sub-Advisor believe
                      that it is important to have the flexibility to enter into
                      forward currency contracts when it determines that the
                      best interests of the Fund will be served.
 
                        When the Advisor and Sub-Advisor believe that the
                      currency of a particular country may suffer a significant
                      decline against another currency, the Fund may enter into
                      a currency contract to sell, for the appropriate currency,
                      the amount of foreign currency approximating the value of
                      some or all of the Fund's securities denominated in such
                      foreign currency.
 
                                       22
<PAGE>   24
 
                        At the maturity of a forward contract, the Fund may
                      either sell a fund security and make delivery of the
                      foreign currency, or it may retain the security and
                      terminate its contractual obligations to deliver the
                      foreign currency by purchasing an "offsetting" contract
                      with the same currency trader, obligating it to purchase
                      on the same maturity date, the same amount of the foreign
                      currency. The Fund may realize a gain or loss from
                      currency transactions.
 
                        FUTURES AND OPTIONS ON FUTURES--Some futures strategies,
                      including selling futures, buying puts and writing calls,
                      reduce a Fund's exposure to price fluctuations. Other
                      strategies, including buying futures, writing puts and
                      buying calls, tend to increase market exposure. Futures
                      and options may be combined with each other in order to
                      adjust the risk and return characteristics of the overall
                      portfolio.
 
                        Options and futures can be volatile instruments, and
                      involve certain risks that, if applied at an inappropriate
                      time, could negatively impact a Fund's return.
 
                        INVESTMENT GRADE BONDS--Interest-bearing or discounted
                      government or corporate securities that obligate the
                      issuer to pay the bondholder a specified sum of money,
                      usually at specific intervals, and to repay the principal
                      amount of the loan at maturity. Investment grade bonds are
                      those rated BBB or better by S&P or Baa or better by
                      Moody's or similarly rated by other NRSROs, or, if not
                      rated, determined to be of comparable quality by the
                      Advisor.
 
                        MONEY MARKET INSTRUMENTS--Short-term, debt instruments
                      or deposits and may include, for example, (i) commercial
                      paper rated within the highest rating category by a NRSRO
                      at the time of investment, or, if not rated, determined by
                      the Advisor to be of comparable quality; (ii) obligations
                      (certificates of deposit, time deposits, bank master
                      notes, and bankers' acceptances) of thrift institutions,
                      savings and loans, U.S. commercial banks (including
                      foreign branches of such banks), and U.S. and foreign
                      branches of foreign banks, provided that such institutions
                      (or, in the case of a branch, the parent institution) have
                      total assets of $1 billion or more as shown on their last
                      published financial statements at the time of investment;
                      (iii) short-term corporate obligations rated within the
                      three highest rating categories by a NRSRO (e.g., at least
                      A by S&P or A by Moody's) at the time of investment, or,
                      if not rated, determined by the Advisor to be of
                      comparable quality; (iv) general obligations issued by the
                      U.S. Government and backed by its full faith and credit,
                      and obligations issued or guaranteed as to principal and
                      interest by agencies or instrumentalities of the U.S.
                      Government (e.g., obligations issued by Farmers Home
                      Administration, Government National Mortgage Association,
                      Federal Farm Credit Bank and Federal Housing
                      Administration); (v) receipts, including TRs, TIGRs and
                      CATS; (vi) repurchase agreements involving such
                      obligations; (vii) loan participations issued by a bank in
                      the United States with assets exceeding $1 billion and for
 
                                       23
<PAGE>   25
 
                      which the underlying loan is issued by borrowers in whose
                      obligations the Fund may invest; (viii) money market funds
                      and (ix) foreign commercial paper.
 
                        Certain of the obligations in which a Fund may invest
                      may be variable or floating rate instruments, may involve
                      conditional or unconditional demand features and may
                      include variable amount master demand notes.
 
                        OBLIGATIONS OF SUPRANATIONAL ENTITIES--Obligations of
                      supranational entities are established through the joint
                      participation of several governments, and include the
                      Asian Development Bank, the Inter-American Development
                      Bank, International Bank for Reconstruction and
                      Development (World Bank), African Development Bank,
                      European Economic Community, European Investment Bank and
                      the Nordic Investment Bank.
 
                        OPTIONS--Under a call option, the purchaser of the
                      option has the right to purchase, and the writer (the
                      Fund) the obligation to sell, the underlying security at
                      the exercise price during the option period. A put option
                      gives the purchaser the right to sell, and the writer the
                      obligation to purchase, the underlying security at the
                      exercise price during the option period.
 
                        In addition, certain Funds may buy options on stock
                      indices to invest cash on an interim basis. Such options
                      will be listed on a national securities exchange. In order
                      to close out an option position, a Fund may enter into a
                      "closing purchase transaction"--the purchase of an option
                      on the same security with the same exercise price and
                      expiration date as the option contract previously written
                      on any particular security. When the security is sold, a
                      Fund effects a closing purchase transaction so as to close
                      out any existing option on that security.
 
                        There are risks associated with such investments
                      including the following: (1) the success of a hedging
                      strategy may depend on the ability of the Advisor or
                      Sub-Advisor to predict movements in the prices of
                      individual securities, fluctuations in markets and
                      movements in interest rates; (2) there may be an imperfect
                      correlation between the movement in prices of securities
                      held by a Fund and the price of options; (3) there may not
                      be a liquid secondary market for options; and (4) while a
                      Fund will receive a premium when it writes covered call
                      options, it may not participate fully in a rise in the
                      market value of the underlying security.
 
                        OPTIONS ON CURRENCIES--The Fund may purchase options and
                      write covered call options on foreign currencies (traded
                      on U.S. and foreign exchanges or over-the-counter markets)
                      to manage the Fund's exposure to changes in dollar
                      exchange rates. Call options on foreign currency written
                      by the Fund will be "covered" which means that the Fund
                      will own an equal amount of the underlying foreign
                      currency. With respect to put options on foreign currency
                      written by the Fund, the Fund will establish a segregated
                      account with its Custodian consisting of cash, U.S.
                      government securities or other liquid high
 
                                       24
<PAGE>   26
 
                      grade debt securities in an amount of equal to the amount
                      the Fund would be required to pay upon exercise of the
                      put.
 
                        RECEIPTS--Interests in separately traded interest and
                      principal component parts of U.S. Treasury obligations
                      that are issued by banks and brokerage firms and are
                      created by depositing Treasury notes and Treasury bonds
                      into a special account at a custodian bank. The custodian
                      holds the interest and principal payments for the benefit
                      of the registered owners of the certificates of such
                      receipts. The custodian arranges for the issuance of the
                      certificates or receipts evidencing ownership and
                      maintains the register. Receipts include "Treasury
                      Receipts" ("TR's"), "Treasury Investment Growth Receipts"
                      ("TIGR's"), and "Certificates of Accrual on Treasury
                      Securities" ("CATS"). TR's, TIGR's and CATS are sold as
                      zero coupon securities, which means that they are sold at
                      a substantial discount and redeemed at face value at their
                      maturity date without interim cash payments of interest or
                      principal. This discount is accreted over the life of the
                      security, and such accretion will constitute the income
                      earned on the security for both accounting and tax
                      purposes. Because of these features, such securities may
                      be subject to greater interest rate volatility than
                      interest-paying securities. See also "FEDERAL TAXATION."
 
                        REPURCHASE AGREEMENTS--Agreements whereby a Fund will
                      acquire securities from approved financial institutions or
                      registered broker-dealers that agree to repurchase the
                      securities at a mutually agreed-upon date and price. The
                      repurchase agreements entered into by the Funds will
                      provide that the underlying security at all times shall
                      have a value equal to 102% of the resale price stated in
                      the agreement. Repurchase agreements involving government
                      securities are not subject to a Fund's fundamental
                      investment limitation on purchasing securities of any one
                      issuer. If the seller defaults on its repurchase
                      obligation or becomes insolvent, the Fund holding such
                      obligations would suffer a loss to the extent that either
                      the proceeds from a sale of the underlying portfolio
                      securities were less than the repurchase price or the
                      Fund's disposition of the securities was delayed pending
                      court action. Securities subject to repurchase agreements
                      will be held by a qualified custodian or in the Federal
                      Reserve/Treasury book-entry system. Repurchase agreements
                      are considered to be loans by a Fund under the Investment
                      Company Act of 1940 (the "1940 Act").
 
                        REVERSE REPURCHASE AGREEMENTS--A Fund may borrow funds
                      for temporary purposes by entering into reverse repurchase
                      agreements, provided such action is consistent with the
                      Fund's investment objective and fundamental investment
                      restrictions; as a matter of non-fundamental policy, each
                      Fund intends to limit such investments to no more than 10%
                      of the value of its total assets. Pursuant to a reverse
                      repurchase agreement, a Fund will sell portfolio
                      securities to financial institutions such as banks or to
                      broker-dealers, and agree to repurchase
 
                                       25
<PAGE>   27
 
                      the securities at a mutually agreed-upon date and price. A
                      Fund intends to enter into reverse repurchase agreements
                      only to avoid otherwise selling securities during
                      unfavorable market conditions to meet redemptions. At the
                      time a Fund enters into a reverse repurchase agreement, it
                      will place in a segregated custodial account assets such
                      as U.S. Government securities or other liquid,
                      high-quality debt securities consistent with the Fund's
                      investment objective having a value equal to 102% of the
                      repurchase price (including accrued interest), and will
                      subsequently monitor the account to ensure that an
                      equivalent value is maintained. Reverse repurchase
                      agreements involve the risk that the market value of the
                      securities sold by a Fund may decline below the price at
                      which a Fund is obligated to repurchase the securities.
                      Reverse repurchase agreements are considered to be
                      borrowings by a Fund under the 1940 Act.
 
                        RULE 144A SECURITIES--Rule 144A Securities are
                      securities that have not been registered under the
                      Securities Act of 1933, but which may be traded between
                      certain qualified institutional investors, including
                      investment companies. The absence of a secondary market
                      may affect the value of the Rule 144A Securities. The
                      Board of Trustees of HighMark has established guidelines
                      and procedures to be utilized to determine the liquidity
                      of such securities.
 
                        SECURITIES ISSUED ON A FORWARD COMMITMENT BASIS OR
                      WHEN-ISSUED SECURITIES--Securities purchased for delivery
                      beyond the normal settlement date at a stated price and
                      yield and which thereby involve a risk that the yield
                      obtained in the transaction will be less than that
                      available in the market when delivery takes place. When a
                      Fund agrees to purchase when-issued securities or enter
                      into forward commitments, HighMark's custodian will be
                      instructed to set aside cash or liquid portfolio
                      securities equal to the amount of the commitment in a
                      segregated account. A Fund will generally not pay for such
                      securities and no income will accrue on the securities
                      until they are received. These securities are recorded as
                      an asset and are subject to changes in value based upon
                      changes in the general level of interest rates. Therefore,
                      the purchase of securities on a "when-issued" basis or
                      forward commitments may increase the risk of fluctuations
                      in a Fund's net asset value.
 
                        SECURITIES LENDING--During the time portfolio securities
                      are on loan from a Fund, the borrower will pay the Fund
                      any dividends or interest paid on the securities. In
                      addition, loans will be subject to termination by the Fund
                      or the borrower at any time and, while a Fund will
                      generally not have the right to vote securities on loan,
                      it will terminate the loan and regain the right to vote if
                      that is considered important with respect to the
                      investment. While the lending of securities may subject a
                      Fund to certain risks, such as delays or an inability to
                      regain the securities in the event the borrower were to
                      default on its lending agreement or enter into bankruptcy,
                      a Fund will receive 100% collateral in the
 
                                       26
<PAGE>   28
 
                      form of cash or U.S. Government securities. This
                      collateral will be valued daily by the lending agent, with
                      oversight by the Advisor, and, should the market value of
                      the loaned securities increase, the borrower will be
                      required to furnish additional collateral to the Fund.
 
                        SECURITIES SUBJECT TO A PUT FEATURE--A "put" feature
                      permits a Fund to sell a fixed income security at a fixed
                      price prior to maturity. The underlying fixed income
                      securities subject to a put may be sold at any time at the
                      market rates. However, unless the put was an integral part
                      of the fixed income security as originally issued, it may
                      not be marketable or assignable. Generally, a premium is
                      paid for a put feature or a put feature is purchased
                      separately which results in a lower yield than would
                      otherwise be available for the same fixed income
                      securities.
 
                        STANDARD & POOR'S DEPOSITARY RECEIPTS (SPDRs)--SPDRs are
                      interests in a unit investment trust holding a portfolio
                      of securities linked to the S&P 500 Index. SPDRs closely
                      track the underlying portfolio of securities, trade like a
                      share of common stock and pay periodic dividends
                      proportionate to those paid by the portfolio of stocks
                      that constitutes the S&P 500 Index. For further
                      information regarding SPDRs, see the Statement of
                      Additional Information.
 
                        TIME DEPOSITS--Non-negotiable receipts issued by U.S. or
                      foreign banks in exchange for the deposit of funds. Like
                      certificates of deposit, they earn a specified rate of
                      interest over a definite period of time; however, they
                      cannot be traded in the secondary market. Time deposits
                      with a withdrawal penalty are considered to be illiquid
                      securities.
 
                        U.S. GOVERNMENT AGENCY SECURITIES--Certain Federal
                      agencies have been established as instrumentalities of the
                      U.S. Government to supervise and finance certain types of
                      activities. Issues of these agencies, while not direct
                      obligations of the U.S. Government, are either backed by
                      the full faith and credit of the United States (e.g., GNMA
                      securities) or supported by the issuing agencies' right to
                      borrow from the U.S. Treasury. The issues of other
                      agencies are supported only by the credit of the
                      instrumentality (e.g., FNMA securities).
 
                        U.S. TREASURY OBLIGATIONS--Bills, notes, and bonds
                      issued by the U.S. Treasury, as well as separately traded
                      interest and principal component parts of such obligations
                      known as Separately Traded Registered Interest and
                      Principal Securities ("STRIPS") that are transferable
                      through the Federal book-entry system.
 
                        U.S. Government Securities generally do not involve the
                      credit risks associated with investments in other types of
                      fixed-income securities, although, as a result, the yields
                      available from U.S. Government Securities are generally
                      lower than the yields available from otherwise comparable
                      corporate fixed-income securities.
 
                                       27
<PAGE>   29
 
                      Like other fixed-income securities, however, the values of
                      U.S. Government Securities change as interest rates
                      fluctuate. Fluctuations in the value of portfolio
                      securities will in many cases not affect interest income
                      on existing portfolio securities, but will be reflected in
                      the Fund's net asset value. Because the magnitude of these
                      fluctuations will generally be greater at times when a
                      Fund's average maturity is longer, under certain market
                      conditions the Fund may invest in short-term investments
                      yielding lower current income rather than investing in
                      higher yielding longer-term securities.
 
                        VARIABLE AND FLOATING RATE INSTRUMENTS--Obligations that
                      may carry variable or floating rates of interest, may
                      involve conditional or unconditional demand features and
                      may include variable amount master demand notes. The
                      interest rates on these securities may be reset daily,
                      weekly, quarterly or some other reset period, and may have
                      a floor or ceiling on interest rate changes. There is a
                      risk that the current interest rate on such obligations
                      may not accurately reflect existing market interest rates.
                      A demand instrument with a demand notice period exceeding
                      seven days may be considered illiquid if there is no
                      secondary market for such security.
 
                        WARRANTS--Securities that entitle the holder to buy a
                      proportionate amount of common stock at a specified price
                      for a limited or unlimited period of time. Warrants are
                      often freely transferable and are traded on major stock
                      exchanges.
 
                        YANKEE BONDS--Dollar denominated securities issued by
                      foreign-domiciled issuers that obligate the issuer to pay
                      the bondholder a specified sum of money, usually
                      semiannually, and to repay the principal amount of the
                      loan at maturity. Sovereign bonds are bonds issued by the
                      governments of foreign countries. Supranational bonds are
                      those issued by supranational entities, such as the World
                      Bank and European Investment Bank. Canadian bonds are
                      bonds issued by Canadian provinces.
 
                        ZERO-COUPON OBLIGATIONS--Non-income producing securities
                      evidencing ownership of future interest and principal
                      payments on bonds. These obligations pay no current
                      interest and are typically sold at prices greatly
                      discounted from par value. The return on a zero-coupon
                      obligation, when held to maturity, equals the difference
                      between the par value and the original purchase price.
 
                        For federal income tax purposes, the difference between
                      the par value and the original issue price (original issue
                      discount) is included in the income of a holder of a
                      zero-coupon obligation over the term of the obligation
                      even though the interest is not paid until maturity. The
                      amount included in income is determined under a constant
                      interest rate method. In addition, if an obligation is
                      purchased subsequent to its original issue, a holder such
                      as the Income Funds may elect to include market discount
                      in income currently on a ratable accrual method or a
 
                                       28
<PAGE>   30
 
                      constant interest rate method. Market discount is the
                      difference between the obligation's "adjusted issue price"
                      (the original issue price plus original issue discount
                      accrued to date) and the holder's purchase price. If no
                      such election is made, gain on the disposition of a market
                      discount obligation is treated as ordinary income (rather
                      than capital gain) to the extent it does not exceed the
                      accrued market discount.
 
                        Zero-coupon obligations have greater price volatility
                      than other fixed-income obligations of similar maturity
                      and such obligations will be purchased when the yield
                      spread, in light of the obligation's duration, is
                      considered advantageous.
 
                                       29
<PAGE>   31
 
                       HighMark INTERNATIONAL EQUITY FUND
                            INVESTMENT PORTFOLIO OF
                                 HighMark FUNDS
                   For further information (including current
                  yield, purchase and redemption information),
                             call 1-(800) 433-6884
 
INVESTMENT ADVISOR
Pacific Alliance Capital Management,
a division of Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
SUB-ADVISOR
Tokyo-Mitsubishi Asset Management (U.K.), Ltd.
12-15 Finsbury Circus
London EC2 M7BT
 
CUSTODIAN
Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
ADMINISTRATOR & DISTRIBUTOR
SEI Fund Resources and
SEI Financial Services Company
Oaks, Pennsylvania 19456
 
LEGAL COUNSEL
Ropes & Gray
One Franklin Square
1301 K Street, N.W., Suite 800 East
Washington, D.C. 20005
 
AUDITORS
Deloitte & Touche LLP
1700 Courthouse Plaza Northeast
Dayton, OH 45402
 
  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS IN CONNECTION WITH THE OFFERING
MADE BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR
REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY HIGHMARK OR
ITS DISTRIBUTOR. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFERING BY HIGHMARK OR
BY THE DISTRIBUTOR IN ANY JURISDICTION IN WHICH SUCH OFFERING MAY NOT LAWFULLY
BE MADE.
 
NOT FDIC INSURED
<PAGE>   32
                                MONEY MARKET FUNDS

                                - Diversified Money
                                  Market Fund

                                - U.S. Government Money
                                  Market Fund

                                - 100% U.S. Treasury
                                  Money Market Fund

                                - California Tax-Free
                                  Money Market Fund

                                   Prospectus

                                Fiduciary Shares

                                 March 28, 1997

84822-A(3/97)                 [LOGO] HIGHMARK(SM)
                                     FUNDS

<PAGE>   33
 
                                 HIGHMARK FUNDS
 
                               MONEY MARKET FUNDS
 
  HighMark Funds ("HighMark") is an open-end, diversified, registered investment
company that offers a convenient means of investing in one or more
professionally managed portfolios of securities. This Prospectus relates to
HighMark's:
                           - Diversified Money Market Fund
                           - U.S. Government Money Market Fund
                           - 100% U.S. Treasury Money Market Fund
                           - California Tax-Free Money Market Fund
 
                                FIDUCIARY SHARES
 
  HighMark's Fiduciary Shares are offered to the following investors: (i)
fiduciary, advisory, agency, custodial and other similar accounts maintained
with Union Bank of California, N.A. or its affiliates; (ii) Select IRA accounts
established with The Bank of California, N.A. and invested in any of HighMark's
Equity or Fixed Income Funds prior to June 20, 1994, which have remained
continuously open thereafter and which are not considered to be fiduciary
accounts; (iii) Shareholders who currently own Shares of HighMark's Equity or
Fixed Income Funds that were purchased prior to June 20, 1994 within an account
registered in their name with the Funds; and (iv) present and retired directors,
officers and employees (and their spouses and children under the age of 21) of
Union Bank of California, N.A., HighMark's current or former distributors or
their respective affiliated companies who currently own Shares of HighMark Funds
which were purchased before April 30, 1997.
 
  This Prospectus sets forth concisely the information about HighMark and the
Funds that a prospective investor should know before investing. Investors are
advised to read this Prospectus and retain it for future reference. A Statement
of Additional Information dated the same date as this Prospectus has been filed
with the Securities and Exchange Commission and is available without charge by
writing the Distributor, SEI Financial Services Company, Oaks, Pennsylvania
19456, or by calling 1-800-433-6884. The Statement of Additional Information is
incorporated into this Prospectus by reference. This Prospectus relates only to
the Fiduciary Shares of the Money Market Funds. Interested persons who wish to
obtain a prospectus for the other Funds of HighMark may contact the Distributor
at the above address and telephone number.
 
    AN INVESTMENT IN THE FUNDS IS NEITHER INSURED NOR GUARANTEED BY THE U.S.
GOVERNMENT. THERE CAN BE NO ASSURANCE THAT THE FUNDS WILL BE ABLE TO MAINTAIN A
                   STABLE NET ASSET VALUE OF $1.00 PER SHARE.
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
HIGHMARK'S SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK, INCLUDING UNION BANK OF CALIFORNIA, N.A., BANK OF TOKYO-
MITSUBISHI, LIMITED OR ANY OF THEIR AFFILIATES OR CORRESPONDENTS. HIGHMARK'S
SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION OR
ANY OTHER GOVERNMENT AGENCY. INVESTMENT IN HIGHMARK INVOLVES RISKS, INCLUDING
POSSIBLE LOSS OF THE PRINCIPAL AMOUNT INVESTED.
 
March 28, 1997
Fiduciary Shares
<PAGE>   34
 
                                    SUMMARY
 
HIGHMARK FUNDS ("HighMark") is an open-end, diversified, registered investment
company providing a convenient way to invest in professionally managed
portfolios of securities. The following provides basic information about the
Fiduciary Shares of the Diversified Money Market, U.S. Government Obligations
Money Market, 100% U.S. Treasury Obligations Money Market, and California
Tax-Free Money Market Funds (each a "Fund" and sometimes referred to in this
prospectus as the "Funds.") This summary is qualified in its entirety by
reference to the more detailed information provided elsewhere in the Prospectus
and in the Statement of Additional Information.
 
WHAT ARE THE FUNDS' INVESTMENT OBJECTIVES? The Diversified Money Market Fund,
the U.S. Government Money Market Fund, and the 100% U.S. Treasury Money Market
Fund seek current income with liquidity and stability of principal. The
California Tax-Free Money Market Fund seeks as high a level of current interest
income free from federal income tax and California personal income tax as is
consistent with the preservation of capital and relative stability of principal.
(See "INVESTMENT OBJECTIVES")
 
WHAT ARE THE FUNDS' PERMITTED INVESTMENTS? THE DIVERSIFIED MONEY MARKET FUND
invests in obligations with maturities deemed under SEC rules to be 397 days or
less ("short-term investments") issued or guaranteed by the U.S. Government, its
agencies or instrumentalities, in high-quality short-term obligations issued by
banks and corporations, and in other high-quality rated and unrated short-term
instruments; some of the obligations and short-term instruments in which the
Fund invests may be subject to repurchase agreements. THE U.S. GOVERNMENT MONEY
MARKET FUND invests in short-term obligations issued or guaranteed by the U.S.
Treasury, and additionally invests in obligations issued or guaranteed by
agencies or instrumentalities of the U.S. Government; some of the obligations in
which the Fund invests may be subject to repurchase agreements. THE 100% U.S.
TREASURY MONEY MARKET FUND invests exclusively in direct U.S. Treasury
short-term obligations. THE CALIFORNIA TAX-FREE MONEY MARKET FUND invests
primarily in bonds and notes issued by or on behalf of the State of California
and other states, territories, possessions of the United States, and the
District of Columbia and their respective authorities, agencies,
instrumentalities and political sub-divisions, the interest on which is excluded
from gross income for federal income and California personal income tax purposes
and not treated as a preference item for individuals for purposes of the federal
alternative minimum tax. (See "INVESTMENT POLICIES")
 
WHAT ARE THE RISKS INVOLVED WITH AN INVESTMENT IN THE FUNDS? Each Fund seeks to
maintain a net asset value of $1.00 per share. There can be no assurance that a
Fund will be able to maintain a net asset value of $1.00 per share on a
continuous basis. The California Tax-Free Money Market Fund concentrates its
investments in California municipal securities, and an investment in the Fund
therefore may be riskier than an investment in other types of money market
funds. (See "Risk Factors")
 
ARE MY INVESTMENTS INSURED? HighMark's Shares are not federally insured by the
FDIC or any other government agency. Any guarantee by the U.S. Government, its
agencies or any instrumentalities of the securities in which any Fund invests
guarantees only the payment of principal and interest on the guaranteed
security, and does not guarantee the yield or value of the security or yield or
value of Shares of that Fund.
 
WHO IS THE ADVISOR? Pacific Alliance Capital Management, a division of Union
Bank of California, N.A., serves as the Advisor to HighMark. (See "The Advisor")
 
                                        2
<PAGE>   35
 
WHO IS THE ADMINISTRATOR? SEI Fund Resources serves as the Administrator of
HighMark. (See "The Administrator")
 
WHO IS THE CUSTODIAN? Union Bank of California, N.A. (the "Bank") serves as the
custodian of HighMark's assets. (See "The Custodian")
 
WHO IS THE DISTRIBUTOR? SEI Financial Services Company acts as distributor of
HighMark's Shares. (See "The Distributor")
 
HOW DO I PURCHASE AND REDEEM SHARES? Purchases and redemptions may be made
through the Distributor on days on which both the New York Stock Exchange and
the Federal Reserve wire system are open for business ("Business Days"). The
minimum initial investment is generally $1,000. In order to be effective on the
Business Day received, orders to purchase and redeem must be placed prior to
8:00 a.m., Pacific time (11:00 a.m., Eastern time) for the California Tax-Free
Money Market Fund, prior to 9:00 a.m., Pacific time (12:00 noon, Eastern time)
for the 100% U.S. Treasury Money Market Fund and prior to 10:00 a.m., Pacific
time (1:00 p.m. Eastern time) for the Diversified Money Market and U.S.
Government Money Market Funds on any Business Day. Otherwise, the order will be
effective the next Business Day. In addition, effectiveness of a purchase is
contingent on the Custodian's receipt of Federal funds before 11:00 a.m.,
Pacific time (2:00 p.m., Eastern time). (See "PURCHASE AND REDEMPTION OF
SHARES")
 
HOW ARE DIVIDENDS PAID? The net investment income (exclusive of short-term
capital gains) of the Funds is determined and declared on each Business Day as a
dividend for Shareholders of record as of the close of business on that day.
Dividends are paid monthly in additional shares unless the Shareholder elects to
take the payment in cash. (See "DIVIDENDS")
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
Summary...............................................................................    2
Money Market Funds Fee Table..........................................................    5
Financial Highlights..................................................................    7
Fund Description......................................................................   15
Investment Objectives.................................................................   15
Investment Policies...................................................................   15
  Diversified Money Market Fund.......................................................   16
  U.S. Government Money Market Fund...................................................   17
  The 100% U.S. Treasury Money Market Fund............................................   18
  California Tax-Free Money Market Fund...............................................   18
Municipal Securities..................................................................   20
General...............................................................................   21
  Illiquid and Restricted Securities..................................................   22
  Lending of Portfolio Securities.....................................................   22
  Other Investments...................................................................   22
  Risk Factors........................................................................   23
</TABLE>
 
                                        3
<PAGE>   36
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                         --
<S>                                                                                     <C>
Investment Limitations................................................................   24
Purchase and Redemption of Shares.....................................................   26
Exchange Privileges...................................................................   27
Dividends.............................................................................   28
Federal Taxation......................................................................   29
Service Arrangements..................................................................   31
  The Advisor.........................................................................   31
  Administrator.......................................................................   32
  The Transfer Agent..................................................................   33
  Shareholder Service Plan............................................................   33
  Distributor.........................................................................   33
  Banking Laws........................................................................   33
  Custodian...........................................................................   34
General Information...................................................................   34
  Description of HighMark & Its Shares................................................   34
  Performance Information.............................................................   35
  Miscellaneous.......................................................................   36
Description of Permitted Investments..................................................   37
</TABLE>
 
                                        4
<PAGE>   37
 
                          MONEY MARKET FUNDS FEE TABLE
 
<TABLE>
<CAPTION>
                                                                                                100% U.S.      CALIFORNIA
                                                              DIVERSIFIED    U.S. GOVERNMENT     TREASURY       TAX-FREE
                                                              MONEY MARKET    MONEY MARKET     MONEY MARKET   MONEY MARKET
                                                                  FUND            FUND             FUND           FUND
                                                               FIDUCIARY        FIDUCIARY       FIDUCIARY      FIDUCIARY
                                                                 SHARES          SHARES           SHARES         SHARES
                                                              ------------   ---------------   ------------   ------------
<S>                                                           <C>            <C>               <C>            <C>
SHAREHOLDER TRANSACTION EXPENSES(A)
  Maximum Sales Load Imposed on Purchases (as a percentage
    of offering price)......................................         0%               0%              0%             0%
  Maximum Sales Load Imposed on Reinvested Dividends (as a
    percentage of offering price)...........................         0%               0%              0%             0%
  Deferred Sales Load (as a percentage of original purchase
    price or redemption proceeds, as applicable)............         0%               0%              0%             0%
  Redemption Fees (as a percentage of amount redeemed, if
    applicable)(b)..........................................         0%               0%              0%             0%
  Exchange Fee(a)...........................................      $  0            $   0            $  0           $  0
ANNUAL OPERATING EXPENSES (as a percentage of net assets)
  Management Fees (after voluntary reduction)(c)............      0.30%            0.29%           0.24%          0.09%
  12b-1 Fees................................................      0.00%            0.00%           0.00%          0.00%
  Other Expenses (after voluntary reduction)(d).............      0.20%            0.21%           0.21%          0.21%
                                                                  ----             ----            ----           ----
  Total Fund Operating Expenses(e)..........................      0.50%            0.50%           0.45%          0.30%
                                                                  ====             ====            ====           ====
</TABLE>
 
  EXAMPLE:  You would pay the following expenses on a $1,000 investment,
assuming (1) 5% annual return and (2) redemption at the end of each time period.
 
<TABLE>
<CAPTION>
                                                                 1 YEAR   3 YEARS   5 YEARS   10 YEARS
                                                                 ------   -------   -------   --------
<S>                                                              <C>      <C>       <C>       <C>
Diversified Money Market Fund Fiduciary Shares.................    $5       $16       $28       $ 63
U.S. Government Money Market Fund Fiduciary Shares.............    $5       $16       $28       $ 63
100% U.S. Treasury Money Market Fund Fiduciary Shares..........    $5       $14       $25       $ 57
California Tax-Free Money Market Fund Fiduciary Shares.........    $3       $10       $17       $ 38
</TABLE>
 
  The purpose of the tables above is to assist an investor in the Funds in
understanding the various costs and expenses that a Shareholder will bear
directly or indirectly. For a more complete discussion of each Fund's annual
operating expenses, see SERVICE ARRANGEMENTS below. THE FOREGOING EXAMPLE SHOULD
NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE EXPENSES. ACTUAL EXPENSES
MAY BE GREATER OR LESS THAN THOSE SHOWN.
- ---------------
 
(a) Certain entities (including Union Bank of California and its affiliates)
    making investments in the Funds on behalf of their customers may charge
    customers fees for services provided in connection with the investment in,
    redemption of, and exchange of Shares. (See PURCHASE AND REDEMPTION OF
    SHARES, EXCHANGE PRIVILEGES and SERVICE ARRANGEMENTS below.)
 
(b) A wire redemption charge is deducted from the amount of a wire redemption
    payment made at the request of a Shareholder. (See PURCHASE AND REDEMPTION
    OF SHARES below.)
 
                                        5
<PAGE>   38
 
(c) Absent voluntary fee waivers, MANAGEMENT FEES would be 0.30% for the
    Fiduciary Shares of the U.S. Government Money Market Fund, the 100% U.S.
    Treasury Money Market Fund, and the California Tax-Free Money Market Fund.
 
(d) Absent voluntary fee waivers, OTHER EXPENSES would be 0.47% for the
    Fiduciary Shares of the Diversified Money Market Fund, and 0.48% for the
    Fiduciary Shares of each of the U.S. Government Money Market Fund, the 100%
    U.S. Treasury Money Market Fund and the California Tax-Free Money Market
    Fund.
 
(e) Absent voluntary fee waivers, TOTAL FUND OPERATING EXPENSES would be: 0.77%
    for the Fiduciary Shares of the Diversified Money Market Fund, 0.78% for the
    Fiduciary Shares of the U.S. Government Money Market Fund, the 100% U.S.
    Treasury Money Market Fund, and the California Tax-Free Money Market Fund.
 
                                        6
<PAGE>   39
 
                              FINANCIAL HIGHLIGHTS
 
  The tables below set forth certain financial information with respect to the
Fiduciary Shares of the Diversified Money Market Fund, U.S. Government Money
Market Fund, 100% U.S. Treasury Money Market Fund, and California Tax-Free Money
Market Fund. Financial highlights for the Funds for the period ended July 31,
1996 have been derived from financial statements audited by Deloitte & Touche
LLP, independent auditors for HighMark, whose report thereon is included in the
Statement of Additional Information. Prior to the fiscal year ended July 31,
1996, Coopers & Lybrand L.L.P. served as independent accountants for HighMark.
 
                         DIVERSIFIED MONEY MARKET FUND
                    (FORMERLY DIVERSIFIED OBLIGATIONS FUND)
 
<TABLE>
<CAPTION>
                                                                 YEAR ENDED JULY 31,
                                              ---------------------------------------------------------
                                                1996        1995        1994        1993        1992
                                              ---------   ---------   ---------   ---------   ---------
                                              FIDUCIARY   FIDUCIARY   FIDUCIARY   FIDUCIARY   FIDUCIARY
                                              ---------   ---------   ---------   ---------   ---------
<S>                                           <C>         <C>         <C>         <C>         <C>
Net Asset Value, Beginning of Period........  $    1.00   $    1.00   $    1.00   $    1.00   $    1.00
                                               --------    --------    --------    --------    --------
Investment Activities
  Net investment income.....................      0.049       0.049       0.028       0.027       0.043
                                               --------    --------    --------    --------    --------
Distributions
  Net investment income.....................     (0.049)     (0.049)     (0.028)     (0.027)     (0.043)
                                               --------    --------    --------    --------    --------
Net Asset Value, End of Period..............  $    1.00   $    1.00   $    1.00   $    1.00   $    1.00
                                               ========    ========    ========    ========    ========
Total Return................................       5.01%       4.99%       2.88%       2.75%       4.41%
Ratios/Supplementary Data:
  Net Assets at end of period (000).........  $ 244,775   $ 270,476   $ 228,934   $ 254,034   $ 337,485
  Ratio of expenses to average net assets...       0.75%       0.74%       0.74%       0.72%       0.72%
  Ratio of net investment income to average
     net assets.............................       4.91%       4.88%       2.83%       2.72%       4.34%
  Ratio of expenses to average net
     assets*................................       0.99%       0.98%       0.89%       0.73%       0.72%
  Ratio of net investment income to average
     net assets*............................       4.67%       4.64%       2.67%       2.71%       4.34%
</TABLE>
 
                                        7
<PAGE>   40
 
<TABLE>
<CAPTION>
                                                        
                                                        
                                                                                          AUGUST 10,
                                                                                           1987 TO
                                                              YEAR ENDED JULY 31,          JULY 31,
                                                        -------------------------------   ----------
                                                          1991        1990       1989      1988(a)
                                                        ---------   --------   --------   ----------
                                                        FIDUCIARY
                                                        ---------
<S>                                                     <C>         <C>        <C>        <C>
Net Asset Value, Beginning of Period..................  $    1.00   $   1.00   $   1.00    $    1.00
Investment Activities
  Net investment income...............................      0.066      0.079      0.085        0.066
Distributions
  Net investment income...............................     (0.066)    (0.079)    (0.085)      (0.066)
                                                         --------   --------   --------     --------
Net Asset Value, End of Period........................  $    1.00   $   1.00   $   1.00    $    1.00
                                                         ========   ========   ========     ========
Total Return..........................................       7.00%      8.23%      8.84%        6.94%
Ratios/Supplementary Data:
  Net Assets at end of period (000)...................  $ 405,447   $593,116   $621,462    $ 350,499
  Ratio of expenses to average net assets.............       0.70%      0.66%      0.59%        0.50%(b)
  Ratio of net investment income to average net
     assets...........................................       6.71%      7.92%      8.50%        6.73%(b)
  Ratio of expenses to average net assets*............       0.70%      0.69%      0.71%        0.70%(b)
  Ratio of net investment income to average net
     assets*..........................................       6.71%      7.89%      8.38%        6.53%(b)
</TABLE>
 
  On December 1, 1990, the Diversified Obligations Fund, now renamed the
Diversified Money Market Fund, commenced offering Class A Shares and designated
existing shares as Class B Shares. As of June 20, 1994, Class A and Class B
Shares were designated as "Investor" (now called "Retail") and "Fiduciary"
Shares, respectively.
- ---------------
* During each period the investment advisory, administration and distribution
  fees (Retail Shares) were voluntarily reduced. If such voluntary fee
  reductions had not occurred, the ratios would have been as indicated.
(a) Period from commencement of operations.
(b) Annualized.
 
                                        8
<PAGE>   41
 
                       U.S. GOVERNMENT MONEY MARKET FUND
                  (FORMERLY U.S. GOVERNMENT OBLIGATIONS FUND)
 
<TABLE>
<CAPTION>
                                                              YEAR ENDED JULY 31,
                                       -----------------------------------------------------------------
                                         1996          1995          1994          1993          1992
                                       ---------     ---------     ---------     ---------     ---------
                                       FIDUCIARY     FIDUCIARY     FIDUCIARY     FIDUCIARY     FIDUCIARY
                                       ---------     ---------     ---------     ---------     ---------
<S>                                    <C>           <C>           <C>           <C>           <C>
Net Asset Value, Beginning of
  Period.............................  $    1.00     $    1.00     $    1.00     $    1.00      $   1.00
                                        --------      --------      --------      --------       -------
Investment Activities
  Net investment income..............      0.048         0.048         0.027         0.027         0.042
                                        --------      --------      --------      --------       -------
Distributions
  Net investment income..............     (0.048)       (0.048)       (0.027)       (0.027)       (0.042)
                                        --------      --------      --------      --------       -------
Net Asset Value, End of Period.......  $    1.00     $    1.00     $    1.00     $    1.00      $   1.00
                                        ========      ========      ========      ========       =======
Total Return.........................       4.88%         4.87%         2.74%         2.72%         4.25%
Ratios/Supplementary Data:
  Net Assets at end of period
     (000)...........................  $ 151,483     $ 159,747     $ 162,094     $ 166,182      $ 94,252
  Ratio of expenses to average net
     assets..........................       0.77%         0.78%         0.78%         0.71%         0.73%
  Ratio of net investment income to
     average net assets..............       4.76%         4.76%         2.70%         2.67%         4.15%
  Ratio of expenses to average net
     assets*.........................       1.00%         1.02%         0.94%         0.74%         0.74%
  Ratio of net investment income to
     average net assets*.............       4.53%         4.52%         2.54%         2.65%         4.14%
</TABLE>
 
<TABLE>
<CAPTION>
                                                   
                                                   
                                                                                          AUGUST 10,
                                                                                           1987 TO
                                                          YEAR ENDED JULY 31,              JULY 31,
                                                   ----------------------------------     ----------
                                                     1991          1990         1989        1988(a)
                                                   ---------     -------     --------     ----------
                                                   FIDUCIARY
                                                   ---------
<S>                                                <C>           <C>         <C>          <C>
Net Asset Value, Beginning of Period.............  $    1.00     $  1.00     $   1.00      $    1.00
Investment Activities
  Net investment income..........................      0.063       0.078        0.083          0.064
                                                    --------     -------     --------       --------
Distributions
  Net investment income..........................     (0.063)     (0.078)      (0.083)        (0.064)
                                                    --------     -------     --------       --------
Net Asset Value, End of Period...................  $    1.00     $  1.00     $   1.00      $    1.00
                                                    ========     =======     ========       ========
Total Return.....................................       6.49%       8.09%        8.62%          6.78%
Ratios/Supplementary Data:
  Net Assets at end of period (000)..............  $ 103,725     $80,774     $114,945      $ 131,985
  Ratio of expenses to average net assets........       0.63%       0.65%        0.62%          0.42%(b)
  Ratio of net investment income to average net
     assets......................................       6.29%       7.80%        8.30%          6.59%(b)
  Ratio of expenses to average net assets*.......       0.73%       0.72%        0.75%          0.71%(b)
  Ratio of net investment income to average net
     assets*.....................................       6.19%       7.73%        8.17%          6.30%(b)
</TABLE>
 
                                        9
<PAGE>   42
 
  On December 1, 1990, the U.S. Government Obligations Fund (now renamed the
U.S. Government Money Market Fund) commenced offering Class A Shares and
designated existing shares as Class B Shares. As of June 20, 1994, Class A and
Class B Shares were designated as "Investor" (now called "Retail") and
"Fiduciary" Shares, respectively.
- ---------------
 
* During each period the investment advisory, administration and distribution
  fees (Retail Shares) were voluntarily reduced. If such voluntary fee
  reductions had not occurred, the ratios would have been as indicated.

(a) Period from commencement of operations.
(b) Annualized.
 
                                       10
<PAGE>   43
 
                      100% U.S. TREASURY MONEY MARKET FUND
                 (FORMERLY 100% U.S. TREASURY OBLIGATIONS FUND)
 
<TABLE>
<CAPTION>
                                                                 YEAR ENDED JULY 31,
                                              ---------------------------------------------------------
                                                1996        1995        1994        1993        1992
                                              ---------   ---------   ---------   ---------   ---------
                                              FIDUCIARY   FIDUCIARY   FIDUCIARY   FIDUCIARY   FIDUCIARY
                                              ---------   ---------   ---------   ---------   ---------
<S>                                           <C>         <C>         <C>         <C>         <C>
Net Asset Value, Beginning of Period........  $    1.00   $    1.00   $    1.00   $    1.00   $    1.00
                                               --------    --------    --------    --------    --------
Investment Activities
Net investment income.......................      0.046       0.046       0.026       0.026       0.040
Net realized and unrealized gains on
  investments...............................                                                      0.001
                                               --------    --------    --------    --------    --------
          Total from Investment
            Activities......................      0.046       0.046       0.026       0.026       0.041
                                               --------    --------    --------    --------    --------
Distributions
  Net investment income.....................     (0.046)     (0.046)     (0.026)     (0.026)     (0.040)
Net realized gains..........................                                                     (0.001)
                                               --------    --------    --------    --------    --------
          Total Distributions...............     (0.046)     (0.046)     (0.026)     (0.026)     (0.041)
                                               --------    --------    --------    --------    --------
Net Asset Value, End of Period..............  $    1.00   $    1.00   $    1.00   $    1.00   $    1.00
                                               ========    ========    ========    ========    ========
Total Return................................       4.74%       4.69%       2.68%       2.64%       4.18%
Ratios/Supplementary Data:
  Net Assets at end of period (000).........  $ 173,340   $ 190,604   $ 160,721   $ 191,946   $ 219,451
  Ratio of expenses to average net assets...       0.74%       0.73%       0.74%       0.67%       0.65%
  Ratio of net investment income to average
     net assets.............................       4.64%       4.60%       2.63%       2.60%       3.99%
  Ratio of expenses to average net
     assets*................................       0.97%       0.97%       0.90%       0.72%       0.72%
  Ratio of net investment income average net
     assets*................................       4.41%       4.36%       2.48%       2.55%       3.92%
</TABLE>
 
                                       11
<PAGE>   44
 
<TABLE>
<CAPTION>
                                                   
                                                   
                                                                                        AUGUST 10,
                                                                                         1987 TO
                                                          YEAR ENDED JULY 31,            JULY 31,
                                                   ---------------------------------    ----------
                                                     1991         1990        1989       1988(a)
                                                   ---------    --------    --------    ----------
                                                   FIDUCIARY
                                                   ---------
<S>                                                <C>          <C>         <C>         <C>
Net Asset Value, Beginning of Period.............  $    1.00    $   1.00    $   1.00    $     1.00
Investment Activities
  Net investment income..........................      0.063       0.078       0.081         0.063
                                                    --------    --------    --------      --------
Distributions
  Net investment income..........................     (0.063)     (0.078)     (0.081)       (0.063)
                                                    --------    --------    --------      --------
Net Asset Value, End of Period...................  $    1.00    $   1.00    $   1.00    $     1.00
                                                    ========    ========    ========      ========
Total Return.....................................      6.53%       8.04%       8.43%         6.62%
Ratios/Supplementary Data:
  Net Assets at end of period (000)..............  $ 265,528    $205,787    $174,258    $  151,854
  Ratio of expenses to average net assets........       0.62%       0.65%       0.54%         0.41%(b)
  Ratio of net investment income to average net
     assets......................................       6.25%       7.76%       8.12%         6.45%(b)
  Ratio of expenses to average net assets*.......       0.70%       0.71%       0.72%         0.72%(b)
  Ratio of net investment income average net
     assets*.....................................       6.17%       7.70%       7.94%         6.14%(b)
</TABLE>
 
  On December 1, 1990, the 100% U.S. Treasury Obligations Fund (now renamed the
100% U.S. Treasury Money Market Fund) commenced offering Class A Shares and
designated existing shares as Class B Shares. As of June 20, 1994, Class A and
Class B Shares were designated as "Investor" (now called "Retail") and
"Fiduciary" Shares, respectively.
- ---------------
* During each period the investment advisory, administration and distribution
  fees (Retail Shares) were voluntarily reduced. If such voluntary fee
  reductions had not occurred, the ratios would have been as indicated.
(a) Period from commencement of operations.
(b) Annualized.
 
                                       12
<PAGE>   45
 
                     CALIFORNIA TAX-FREE MONEY MARKET FUND
                      (FORMERLY CALIFORNIA TAX-FREE FUND)
 
<TABLE>
<CAPTION>
                                                                  YEAR ENDED JULY 31,
                                               ---------------------------------------------------------
                                                 1996        1995        1994        1993        1992
                                               ---------   ---------   ---------   ---------   ---------
                                               FIDUCIARY   FIDUCIARY   FIDUCIARY   FIDUCIARY   FIDUCIARY
                                               ---------   ---------   ---------   ---------   ---------
<S>                                            <C>         <C>         <C>         <C>         <C>
Net Asset Value, Beginning of Period.........   $   1.00   $    1.00   $    1.00   $    1.00   $    1.00
Investment Activities
  Net investment income......................      0.029       0.031       0.020       0.021       0.032
                                                 -------    --------    --------    --------    --------
Distributions
  Net Investment income......................    (0.029)     (0.031)     (0.020)     (0.021)     (0.032)
                                                 -------    --------    --------    --------    --------
Net Asset Value, End of Period...............   $   1.00   $    1.00   $    1.00   $    1.00   $    1.00
                                                 =======    ========    ========    ========    ========
Total Return.................................       2.91%       3.16%       1.99%       2.13%       3.20%
Ratios/Supplementary Data:
  Net Assets at end of period (000)..........   $ 98,352   $ 105,742   $ 114,993   $ 142,939   $ 116,062
  Ratio of expenses to average net assets....       0.55%       0.50%       0.50%       0.44%       0.54%
  Ratio of net investment income to average
     net assets..............................       2.88%       3.11%       1.96%       2.08%       3.15%
  Ratio of expenses to average net assets*...       1.00%       1.01%       0.93%       0.73%       0.74%
  Ratio of net investment income to average
     net assets*.............................       2.43%       2.60%       1.53%       1.78%       2.95%
</TABLE>
 
                                       13
<PAGE>   46
 
<TABLE>
<CAPTION>
                                                                                    AUGUST 10,
                                                                                     1987 TO
                                                    YEAR ENDED JULY 31,              JULY 31,
                                            -----------------------------------     ----------
                                              1991          1990         1989        1988(a)
                                            ---------     --------     --------     ----------
                                            FIDUCIARY
                                            ---------
<S>                                         <C>           <C>          <C>          <C>
Net Asset Value, Beginning of Period......  $    1.00     $   1.00     $   1.00      $   1.00
                                             --------     --------     --------      --------
Investment Activities
  Net investment income...................      0.045        0.052        0.054         0.042
                                             --------     --------     --------      --------
Distributions
  Net Investment income...................     (0.045)      (0.052)      (0.054)       (0.042)
                                             --------     --------     --------      --------
Net Asset Value, End of Period............  $    1.00     $   1.00     $   1.00      $   1.00
                                             ========     ========     ========      ========
Total Return..............................       4.57%        5.28%        5.58%         4.41%
Ratios/Supplementary Data:
  Net Assets at end of period (000).......  $ 142,365     $137,308     $147,868      $121,940
  Ratio of expenses to average net
     assets...............................       0.53%        0.66%        0.71%         0.70%(b)
  Ratio of net investment income to
     average net assets...................       4.47%        5.17%        5.45%         4.34%(b)
  Ratio of expenses to average net
     assets*..............................       0.72%        0.72%        0.76%         0.75%(b)
  Ratio of net investment income to
     average net assets*..................       4.28%        5.11%        5.40%         4.29%(b)
</TABLE>
 
  On December 1, 1990, the California Tax-Free Fund (now renamed the California
Tax-Free Money Market Fund) commenced offering Class A Shares and designated
existing shares as Class B Shares. As of June 20, 1994, Class A and Class B
Shares were designated as "Investor" (now called "Retail") and "Fiduciary"
Shares, respectively.
- ---------------
* During each period the investment advisory, administration and distribution
  fees (Retail Shares) were voluntarily reduced. If such voluntary fee
  reductions had not occurred, the ratios would have been as indicated.

(a) Period from commencement of operations.
(b) Annualized.
 
                                       14
<PAGE>   47
 
FUND
DESCRIPTION             HighMark Funds ("HighMark") is an open-end, diversified,
                      registered investment company that currently offers units
                      of beneficial interest ("Shares") in sixteen separate
                      investment portfolios ("Funds"). All of the Funds are
                      advised by Pacific Alliance Capital Management (the
                      "Advisor"), a division of Union Bank of California, N.A.
                      Shareholders may purchase Shares of selected Funds through
                      two separate classes (the "Retail" and "Fiduciary"
                      classes). These classes may have different sales charges
                      and other expenses, which may affect performance.
                      Information regarding HighMark's other Funds and other
                      classes is contained in separate prospectuses that may be
                      obtained from HighMark's Distributor, SEI Financial
                      Services Company, at Oaks, Pennsylvania 19456, or by
                      calling 1-800-433-6884.
 
                        For information concerning those investors who qualify
                      to purchase Fiduciary Shares, see PURCHASE AND REDEMPTION
                      OF SHARES below. (Fiduciary Shares may be hereinafter
                      referred to as "Shares.")
 
INVESTMENT
OBJECTIVES              The investment objectives of the Funds are as follows:
 
                        The Diversified Money Market Fund, the U.S. Government
                      Money Market Fund and the 100% U.S. Treasury Money Market
                      Fund each seek current income with liquidity and stability
                      of principal.
 
                        The California Tax-Free Money Market Fund seeks as high
                      a level of current interest income free from federal
                      income tax and California personal income tax as is
                      consistent with the preservation of capital and relative
                      stability of principal.
 
                        The investment objectives and certain of the investment
                      limitations of the Diversified Money Market Fund, the U.S.
                      Government Money Market Fund, the 100% U.S. Treasury Money
                      Market Fund, and the California Tax-Free Money Market Fund
                      may not be changed without a vote of the holders of a
                      majority of the outstanding Shares of the respective Fund
                      (as defined under GENERAL INFORMATION--Miscellaneous
                      below). There can be no assurance that a Fund will achieve
                      its investment objective.
 
INVESTMENT
POLICIES                While the Diversified Money Market Fund, the U.S.
                      Government Money Market Fund and the 100% U.S. Treasury
                      Money Market Fund have the same investment objective, they
                      differ as follows with respect to the types of instruments
                      that may be purchased. Each Fund may invest only in U.S.
                      dollar denominated obligations determined by the Advisor
                      to present minimal credit risks under guidelines adopted
                      by HighMark's Board of Trustees.
 
                                       15
<PAGE>   48
 
                      Diversified Money Market Fund
 
                      The Diversified Money Market Fund may invest in the
                      following obligations:
 
                        (i) obligations issued by the U.S. Government, and
                      backed by its full faith and credit, and obligations
                      issued or guaranteed as to principal and interest by the
                      agencies or instrumentalities of the U.S. Government
                      (e.g., obligations issued by Farmers Home Administration,
                      Government National Mortgage Association, Federal Farm
                      Credit Bank and Federal Housing Administration);
 
                        (ii) obligations such as bankers' acceptances, bank
                      notes, certificates of deposit and time deposits of thrift
                      institutions, savings and loans, U.S. commercial banks
                      (including foreign branches of such banks), and U.S. and
                      foreign branches of foreign banks, provided that such
                      institutions (or, in the case of a branch, the parent
                      institution) have total assets of $1 billion or more as
                      shown on their last published financial statements at the
                      time of investment;
 
                        (iii) short-term promissory notes issued by
                      corporations, including Canadian Commercial Paper ("CCP"),
                      which is U.S. dollar denominated commercial paper issued
                      by a Canadian corporation or a Canadian counterpart of a
                      U.S. corporation, and Europaper, which is U.S. dollar
                      denominated commercial paper of a foreign issuer;
 
                        (iv) U.S. dollar denominated securities issued or
                      guaranteed by foreign governments, their political
                      subdivisions, agencies or instrumentalities, and
                      obligations of supranational entities such as the World
                      Bank and the Asian Development Bank (provided that the
                      Fund invests no more than 5% of its assets in any such
                      instrument and invests no more than 25% of its assets in
                      such instruments in the aggregate);
 
                        (v) up to 5% of its total assets in loan participations
                      issued by a bank in the U.S. with assets exceeding $1
                      billion where the underlying loan is made to a borrower in
                      whose obligations the Fund may invest and the underlying
                      loan has a remaining maturity of 397 days or less;
 
                        (vi) readily-marketable, short-term debt securities
                      including, but not limited to, those backed by company
                      receivables, truck and auto loans, leases, and credit card
                      loans;
 
                        (vii) Treasury receipts, including TRs, TIGRs and CATs;
                      and
 
                        (viii) repurchase agreements involving such obligations.
 
                        Certain of the obligations in which the Fund may invest
                      may be variable or floating rate instruments, may involve
                      a conditional or unconditional demand feature, and may
                      include variable amount master demand notes.
 
                                       16
<PAGE>   49
 
                        Subject to the provisions of Rule 2a-7 under the
                      Investment Company Act of 1940 (the "1940 Act"),
                      investments of the Diversified Money Market Fund will
                      consist of those obligations that, at the time of
                      purchase, possess the highest short-term rating from at
                      least one nationally recognized statistical rating
                      organization ("NRSRO") (for example, commercial paper
                      rated "A-1" by Standard & Poor's Corporation ("S&P") or
                      "P-1" by Moody's Investors Service, Inc. ("Moody's")).
                      Although the Diversified Money Market Fund does not
                      presently expect to do so, it may also invest up to 5% of
                      its net assets in obligations that, at the time of
                      purchase, possess one of the two highest short-term
                      ratings from at least one NRSRO, and in obligations that
                      do not possess an equivalent short-term rating (i.e., are
                      unrated) but are determined by the Advisor to be of
                      comparable quality to the rated instruments eligible for
                      purchase by the Fund under guidelines adopted by the Board
                      of Trustees.
 
                        The Diversified Money Market Fund will not invest more
                      than 5% of its total assets in the securities of any one
                      first tier issuer, except that the Fund may invest up to
                      25% of its total assets in the securities of a single
                      first tier issuer for a period of up to three business
                      days. There is no limit on the percentage of the Fund's
                      assets that may be invested in obligations issued or
                      guaranteed by the U.S. Government, its agencies, or
                      instrumentalities and repurchase agreements fully
                      collateralized by such obligations.
 
                        The Fund may concentrate its investments in certain
                      instruments issued by U.S. Banks, U.S. branches of foreign
                      banks, and foreign branches of U.S. banks, but only so
                      long as the investment risk associated with investing in
                      foreign branches of U.S. banks is the same as that
                      associated with investing in instruments issued by the
                      U.S. parent. Domestic certificates of deposit and bankers'
                      acceptances include those issued by domestic branches of a
                      foreign bank to the extent permitted by the rules of the
                      Securities and Exchange Commission. The rules currently
                      permit U.S. branches of foreign banks to be treated as a
                      domestic bank if it can be demonstrated that they are
                      subject to the same regulations as domestic banks.
 
                      U.S. Government Money Market Fund
 
                        As a fundamental policy, the U.S. Government Money
                      Market Fund may not purchase securities other than U.S.
                      Treasury bills, notes, and other obligations issued or
                      guaranteed by the U.S. Government, its agencies, or
                      instrumentalities (such as obligations issued by the
                      Government National Mortgage Association and the
                      Export-Import Bank of the United States) some of which may
                      be subject to repurchase agreements.
 
                                       17
<PAGE>   50
 
                      The 100% U.S. Treasury Money Market Fund
 
                        The 100% U.S. Treasury Money Market Fund invests
                      exclusively in direct U.S. Treasury obligations and
                      separately traded component parts of such obligations
                      transferable through the Federal Reserve book-entry system
                      ("STRIPs").
 
                      California Tax-Free Money Market Fund
 
                          The California Tax-Free Money Market Fund invests in
                      obligations issued by the State of California and its
                      political subdivisions or municipal authorities and
                      obligations issued by territories or possessions of the
                      United States ("Municipal Securities").
 
                        Under normal market conditions and, as a matter of
                      fundamental policy, at least 80% of the value of the total
                      assets of the California Tax-Free Money Market Fund will
                      be invested in Municipal Securities, the interest on
                      which, in the opinion of bond counsel, is both excluded
                      from gross income both for federal income tax purposes and
                      for California personal income tax purposes, and does not
                      constitute a preference item for individuals for purposes
                      of the federal alternative minimum tax.
 
                        Certain of the obligations in which the Fund may invest
                      may be variable or floating rate instruments and may
                      involve a conditional or unconditional demand feature.
 
                        Under normal market conditions, up to 20% of the
                      California Tax-Free Money Market Fund's total assets may
                      be invested in short-term obligations, the interest on
                      which is treated as a preference item for individuals for
                      purposes of the federal alternative minimum tax or subject
                      to federal or California personal income tax ("Taxable
                      Obligations"). These short-term obligations may include
                      bonds from other states and cash equivalents as described
                      below.
 
                        Dividends paid by the California Tax-Free Money Market
                      Fund that are derived from obligations, the interest on
                      which is exempt from California taxation when received by
                      an individual ("California Exempt-Interest Securities"),
                      are excluded from gross income for California personal
                      income tax purposes. Dividends derived from interest on
                      obligations other than California Exempt-Interest
                      Securities may be excluded from gross income for federal
                      income tax purposes but will be subject to California
                      personal income tax.
 
                        In order for the California Tax-Free Money Market Fund
                      to pay exempt-interest dividends, at least 50% of its
                      total assets must be invested in California
                      Exempt-Interest Securities at the close of each quarter of
                      its taxable year. Dividends, regardless of their source,
                      may be subject to local taxes.
 
                                       18
<PAGE>   51
 
                        In seeking to achieve its investment objective, the
                      California Tax-Free Money Market Fund may invest all or
                      any part of its assets in Municipal Securities that are
                      private activity bonds, including those known as
                      industrial development bonds under prior federal law. (Any
                      reference herein to private activity bonds includes
                      industrial development bonds.) Interest on private
                      activity bonds is excluded from gross income for federal
                      income tax purposes only if the bonds fall within certain
                      defined categories of qualified private activity bonds and
                      meet the requirements specified for those respective
                      categories. However, even if the California Tax-Free Money
                      Market Fund invests in private activity bonds that fall
                      within these categories, Shareholders may become subject
                      to the federal alternative minimum tax on that part of
                      such Fund's distributions derived from interest on such
                      bonds. For further information, see FEDERAL TAXATION
                      below.
 
                        The California Tax-Free Money Market Fund may invest up
                      to 10% of its total assets in shares of other investment
                      companies with like investment objectives. As a
                      shareholder of an investment company, a Fund may
                      indirectly bear investment management fees of that
                      investment company, which are in addition to the
                      management fees the Fund pays its own advisor.
 
                        Investments of the California Tax-Free Money Market Fund
                      will consist of those obligations that, at the time of
                      purchase, possess one of the two highest short-term
                      ratings by a NRSRO, and in obligations that do not possess
                      a rating (i.e., are unrated) but are determined by the
                      Advisor to be of comparable quality to the rated
                      instruments eligible for purchase by the Fund under the
                      guidelines adopted by the Board of Trustees.
 
                        The California Tax-Free Money Market Fund may hold
                      uninvested cash reserves pending investment during
                      temporary "defensive" periods or if, in the opinion of the
                      Advisor, desirable tax-exempt obligations are unavailable.
                      In accordance with the Fund's investment objective and
                      subject to its fundamental policies, investments may be
                      made in Taxable Obligations if, for example, suitable
                      tax-exempt obligations are unavailable or if acquisition
                      of U.S. Government or other taxable securities is deemed
                      appropriate for temporary "defensive" purposes.
 
                        As discussed in greater detail in the Statement of
                      Additional Information, Taxable Obligations may include
                      obligations issued or guaranteed by the U.S. Government,
                      its agencies, or instrumentalities (some of which may be
                      subject to repurchase agreements), certificates of
                      deposit, bankers' acceptances, and commercial paper. As
                      noted above, Taxable Obligations may also include private
                      activity bonds depending on their tax treatment.
 
                        The California Tax-Free Money Market Fund is not
                      intended to constitute a balanced investment program and
                      is not designed for investors seeking capital
 
                                       19
<PAGE>   52
 
                      appreciation nor maximum tax-exempt income irrespective of
                      fluctuations in principal. Investment in the California
                      Tax-Free Money Market Fund would not be appropriate for
                      tax-deferred plans, such as IRA and Keogh plans, and
                      investors should consult a tax or other financial advisor
                      to determine whether investment in the California Tax-Free
                      Fund would be appropriate for them.
 
MUNICIPAL
SECURITIES              The two principal classifications of Municipal
                      Securities that may be held by the California Tax-Free
                      Money Market Fund are "general obligation" securities and
                      "revenue" securities.
 
                        General obligation securities are secured by the
                      issuer's pledge of its full faith and credit and general
                      taxing power for the payment of principal and interest.
 
                        Revenue securities are payable only from the revenues
                      derived from a particular facility or class of facilities
                      or, in some cases, from the proceeds of a special excise
                      tax or other specific revenue source such as the user of
                      the facility being financed. Private activity bonds held
                      by the California Tax-Free Money Market Fund are in most
                      cases revenue securities and are not payable from the
                      unrestricted revenues of the issuer. Consequently, the
                      credit quality of private activity bonds is usually
                      directly related to the credit standing of the corporate
                      user of the facility involved.
 
                        In addition, Municipal Securities may include "moral
                      obligation" bonds, which are normally issued by special
                      purpose public authorities. If the issuer of moral
                      obligation bonds is unable to meet its debt service
                      obligations from current revenues, it may draw on a
                      reserve fund, the restoration of which is a moral
                      commitment but not a legal obligation of the state or
                      municipality which created the issuer.
 
                        Opinions relating to the validity of Municipal
                      Securities and to the exemption of interest thereon from
                      federal income tax or California personal income tax are
                      rendered at the time of issuance by counsel experienced in
                      matters relating to the validity of and tax exemption of
                      interest on bonds issued by states and their political
                      sub-divisions. Neither the California Tax-Free Money
                      Market Fund nor the Advisor will review the proceedings
                      relating to the issuance of Municipal Securities or the
                      basis for such opinions.
 
                        Municipal Securities purchased by the California
                      Tax-Free Money Market Fund may include adjustable rate
                      tax-exempt notes which may have a stated maturity in
                      excess of 397 days, but which will be subject to a demand
                      feature that will permit the Fund to demand payment of the
                      principal of the note either (i) at any time upon not more
                      than thirty days' notice or (ii) at specified intervals
                      not exceeding 397 days and upon no more than thirty days'
                      notice. There may be no active secondary market with
                      respect to a particular adjustable rate note.
 
                                       20
<PAGE>   53
 
                      Nevertheless, as described in greater detail in the
                      Statement of Additional Information, the adjustable
                      interest rate feature included in this type of note is
                      intended generally to assure that the value of the note to
                      the Fund will approximate its par value.
 
                        Municipal Securities may include, but are not limited
                      to, short-term anticipation notes, bond anticipation
                      notes, revenue anticipation notes, and other forms of
                      short-term tax-exempt securities. These instruments are
                      issued in anticipation of the receipt of tax funds, the
                      proceeds of bond placements, or other revenues. In
                      addition, the California Tax-Free Money Market Fund may
                      purchase tax-exempt commercial paper. Under certain
                      circumstances, and subject to the limitations described in
                      the Statement of Additional Information, the California
                      Tax-Free Money Market Fund may invest indirectly in
                      Municipal Securities by purchasing shares of other
                      tax-exempt money market mutual funds.
 
                        The California Tax-Free Money Market Fund may also
                      acquire Municipal Securities that have "put" features.
                      Under a put feature, the Fund has the right to sell the
                      Municipal Security within a specified period of time at a
                      specified price. The put feature cannot be sold,
                      transferred, or assigned separately from the Municipal
                      Security. Each Fund may buy Municipal Securities with put
                      features to facilitate portfolio liquidity, shorten the
                      maturity of the underlying Municipal Securities, or permit
                      investment at a more favorable rate of return. The
                      aggregate price of a security subject to a put may be
                      higher than the price that otherwise would be paid for the
                      security without such a feature, thereby increasing the
                      security's cost and reducing its yield.
 
GENERAL                 The Funds intend to comply with Rule 2a-7 under the 1940
                      Act. Shares of each Fund are priced pursuant to the
                      amortized cost method whereby HighMark seeks to maintain
                      each Fund's net asset value per Share at $1.00. There can
                      be, however, no assurance that a stable net asset value of
                      $1.00 per Share will be maintained.
 
                        Securities or instruments in which each Fund invests
                      have remaining maturities of 397 days or less, although
                      instruments subject to repurchase agreements and certain
                      adjustable rate instruments may bear longer maturities.
                      The dollar-weighted average portfolio maturity of each
                      Fund will not exceed 90 days.
 
                        Although the Diversified Money Market Fund, the U.S.
                      Government Money Market Fund and the 100% U.S. Treasury
                      Money Market Fund have the same investment advisor and the
                      same investment objective, particular securities held and
                      respective yields of these Funds may differ due to
                      differences in the types of permitted investments, cash
                      flow, and the availability of particular investments.
 
                                       21
<PAGE>   54
 
                        Additional information concerning each Fund's
                      investments, including certain investment restrictions
                      that may not be changed with respect to a particular Fund
                      without a vote of the holders of a majority of the
                      outstanding Shares of that Fund, is set forth below and in
                      the Statement of Additional Information. For further
                      information concerning the rating and other requirements
                      governing the investments (including the treatment of
                      securities subject to a tender or demand feature or deemed
                      to possess a rating based on comparable rated securities
                      of the same issuer) of a Fund, see the Statement of
                      Additional Information. The Statement of Additional
                      Information also identifies the NRSROs that may be
                      utilized by the Advisor with respect to portfolio
                      investments for the Funds and provides a description of
                      the relevant ratings assigned by each such NRSRO.
 
                        In the event that a security owned by a Fund is
                      downgraded below the stated rating categories, the Advisor
                      will take appropriate action with regard to that security.
 
                      Illiquid and Restricted Securities
 
                        The Funds shall limit investments in illiquid securities
                      to 10% or less of their net assets. Generally, an
                      "illiquid security" is any security that cannot be
                      disposed of promptly and in the ordinary course of
                      business at approximately the amount at which the Fund has
                      valued the instrument. The absence of a trading market can
                      make it difficult to ascertain the market value of
                      illiquid securities. Each Fund may purchase restricted
                      securities which have not been registered under the
                      Securities Act of 1933 (e.g., Rule 144A Securities and
                      Section 4(2) commercial paper) subject to policies
                      approved by the Board of Trustees. See INVESTMENT
                      RESTRICTIONS in the Statement of Additional Information.
 
                        Time deposits, including ETDs and CTDs but not including
                      certificates of deposit and repurchase agreements, which
                      have maturities in excess of seven days are considered to
                      be illiquid.
 
                      Lending of Portfolio Securities
 
                        In order to generate additional income, each Fund
                      (except the California Tax-Free Money Market Fund) may
                      lend its portfolio securities to broker-dealers, banks or
                      other institutions. A Fund may lend portfolio securities
                      in an amount representing up to 33 1/3% of the value of
                      the Fund's total assets.
 
                      Other Investments
 
                        The Diversified Money Market Fund, the U.S. Government
                      Money Market Fund, and the California Tax-Free Money
                      Market Fund may enter into repurchase agreements and
                      reverse repurchase agreements. Each Fund intends to limit
                      its respective activity in reverse repurchase agreements
                      to no more than 10% of the Fund's total assets.
 
                                       22
<PAGE>   55
 
                        The Funds may enter into forward commitments or purchase
                      securities on a "when-issued" basis. Each Fund expects
                      that commitments by a Fund to enter into forward
                      commitments or purchase when-issued securities will not
                      exceed 25% of the value of the Fund's total assets under
                      normal market conditions. The Funds do not intend to
                      purchase when-issued securities or enter into forward
                      commitments for speculative or leveraging purposes but
                      only for the purpose of acquiring portfolio securities.
 
                        For further information, see "DESCRIPTION OF PERMITTED
                      INVESTMENTS."
 
                      Risk Factors
 
                        Investments by the Funds in obligations of certain
                      agencies and instrumentalities of the U.S. Government may
                      not be guaranteed by the full faith and credit of the U.S.
                      Treasury, and there can be no assurance that the U.S.
                      Government would provide financial support to U.S.
                      Government-sponsored agencies or instrumentalities if it
                      is not obligated to do so by law.
 
                        As in the case of mortgage-related securities,
                      participations and certain asset-backed securities are
                      subject to prepayments and there can be no assurance that
                      the Diversified Money Market Fund will be able to reinvest
                      the proceeds of any prepayment at the same interest rate
                      or on the same terms as the original investment.
 
                        With regard to loan participations, although a Fund's
                      ability to receive payments of principal and interest in
                      connection with a particular loan is primarily dependent
                      on the financial condition of the underlying borrower, the
                      lending institution or bank may provide assistance in
                      collecting interest and principal from the borrower and in
                      enforcing its rights against the borrower in the event of
                      a default. In selecting loan participations on behalf of a
                      Fund, the Advisor will evaluate the creditworthiness of
                      both the borrower and the loan originator and will treat
                      both as an "issuer" of the loan participation for purposes
                      of the Fund's investment policies and restrictions (see
                      INVESTMENT RESTRICTIONS in the Statement of Additional
                      Information).
 
                        Foreign securities which the Diversified Money Market
                      Fund may purchase may subject the Fund to investment risks
                      that differ in some respects from those related to
                      investments in obligations of U.S. issuers. These risks
                      include adverse political and economic developments,
                      possible imposition of withholding taxes on interest
                      income, possible seizure, nationalization, or
                      expropriation of foreign investments, possible
                      establishment of exchange controls, or adoption of other
                      foreign governmental restrictions which might adversely
                      affect the payment of principal and interest on such
                      obligations. In addition, foreign branches of U.S. banks
                      and foreign banks may be subject to less stringent reserve
                      requirements and
 
                                       23
<PAGE>   56
 
                      different accounting, auditing, reporting, and
                      recordkeeping standards than those applicable to domestic
                      branches of U.S. banks.
 
                        Certain risks are inherent in the California Tax-Free
                      Money Market Fund's concentrated investment in California
                      Municipal Securities, which may make an investment in the
                      Fund riskier than an investment in other types of money
                      market funds. Because of the California Tax-Free Money
                      Market Fund's investment objective, many of the securities
                      in its portfolio are likely to be obligations of
                      California governmental issuers that rely in whole or in
                      part, directly or indirectly, on real property taxes as a
                      source of revenue. The ability of the State of California
                      and its political sub-divisions to generate revenue
                      through real property and other taxes and to increase
                      spending has been significantly restricted by various
                      constitutional and statutory amendments and voter-passed
                      initiatives. Such limitations could affect the ability of
                      California state and municipal issuers to pay interest or
                      repay principal on their obligations. In addition, during
                      the first half of the decade, California faced severe
                      economic and fiscal conditions and experienced recurring
                      budget deficits that caused it to deplete its available
                      cash resources and to become increasingly dependent upon
                      external borrowings to meet its cash needs.
 
                        The financial difficulties experienced by the State of
                      California and other issuers of California Municipal
                      Securities during the recession resulted in the credit
                      ratings of certain of their obligations being downgraded
                      significantly by the major rating agencies.
 
                        A more detailed description of special factors affecting
                      investments in obligations of California governmental
                      issuers of which investors should be aware is set forth in
                      the Statement of Additional Information.
 
INVESTMENT
LIMITATIONS             The Diversified Money Market Fund, the U.S. Government
                      Money Market Fund and the 100% U.S. Treasury Money Market
                      Fund may not:
 
                        1) Purchase securities of any one issuer, other than
                      obligations issued or guaranteed by the U.S. Government,
                      its agencies, or instrumentalities, if, immediately after
                      the purchase, more than 5% of the value of the Fund's
                      total assets would be invested in such issuer (except that
                      up to 25% of the value of the Fund's total assets may be
                      invested without regard to the 5% limitation). (As
                      indicated below, the Funds have adopted a non-fundamental
                      investment policy that is more restrictive than this
                      fundamental investment limitation);
 
                        2) Purchase any securities that would cause more than
                      25% of the value of the Fund's total assets at the time of
                      purchase to be invested in the securities of one or more
                      issuers conducting their principal business activities in
                      the same industry, provided that (a) there is no
                      limitation with respect to obligations issued or
 
                                       24
<PAGE>   57
 
                      guaranteed by the U.S. Government, its agencies, or
                      instrumentalities, domestic bank certificates of deposit
                      or bankers' acceptances, and repurchase agreements secured
                      by bank instruments or obligations of the U.S. Government,
                      its agencies, or instrumentalities; (b) wholly owned
                      finance companies will be considered to be in the
                      industries of their parents if their activities are
                      primarily related to financing the activities of their
                      parents; and (c) utilities will be divided according to
                      their services (for example, gas, gas transmission,
                      electric and gas, electric and telephone will each be
                      considered a separate industry).
 
                        3) Make loans, except that a Fund may purchase or hold
                      debt instruments, lend portfolio securities, and enter
                      into repurchase agreements as permitted by its individual
                      investment objective and policies.
 
                        The California Tax-Free Money Market Fund may not:
 
                        4) Purchase securities of any one issuer, other than
                      obligations issued or guaranteed by the U.S. Government,
                      its agencies, or instrumentalities, if, immediately after
                      the purchase, more than 5% of the value of its total
                      assets would be invested in such issuer (except that up to
                      25% of the value of the Fund's total assets may be
                      invested without regard to the 5% limitation). For
                      purposes of this investment restriction, a security is
                      considered to be issued by the government entity (or
                      entities) whose assets and revenues back the security or,
                      with respect to a private activity bond that is backed
                      only by the assets and revenues of a non-governmental
                      user, by the non-governmental user;
 
                        5) Purchase any securities that would cause 25% or more
                      of such Fund's total assets at the time of purchase to be
                      invested in the securities of one or more issuers
                      conducting their principal business activities in the same
                      industry; provided that this limitation shall not apply to
                      securities of the U.S. Government, its agencies or
                      instrumentalities or Municipal Securities or governmental
                      guarantees of Municipal Securities; and provided, further,
                      that for the purpose of this limitation, private activity
                      bonds that are backed only by the assets and revenues of a
                      non-governmental user shall not be deemed to be Municipal
                      Securities.
 
                        6) Make loans; except that the Fund may purchase or hold
                      debt instruments, lend portfolio securities and enter into
                      repurchase agreements as permitted by its investment
                      objective and policies.
 
                        The foregoing percentages will apply at the time of the
                      purchase of a security. The investment limitations listed
                      above are fundamental policies the substance of which may
                      not be changed without a vote of a majority of the
                      outstanding Shares of the respective Fund. Additional
                      fundamental and non-fundamental investment limitations are
                      set forth in the Statement of Additional Information.
 
                                       25
<PAGE>   58
 
                        The Diversified Money Market Fund, the Government
                      Obligations Money Market Fund, and the 100% U.S. Treasury
                      Money Market Fund have each adopted, in accordance with
                      Rule 2a-7, a non-fundamental policy providing that the 5%
                      limit noted in limitation (1) above shall apply to 100% of
                      each Fund's assets. Notwithstanding, each such Fund may
                      invest up to 25% of its assets in First Tier qualified
                      securities of a single issuer for up to three business
                      days.
 
PURCHASE AND
REDEMPTION
OF SHARES               As noted above, the Funds are divided into two classes
                      of Shares, Retail and Fiduciary. Only the following
                      investors qualify to purchase the Funds' Fiduciary Shares:
                      (i) fiduciary, advisory, agency, custodial and other
                      similar accounts maintained with Union Bank of California,
                      N.A. or its affiliates; (ii) SelectIRA accounts
                      established with The Bank of California, N.A. and invested
                      in any of HighMark's Equity or Income Funds prior to June
                      20, 1994, which have remained continuously open thereafter
                      and which are not considered to be fiduciary accounts;
                      (iii) Shareholders who currently own Shares of HighMark's
                      Equity or Income Funds that were purchased prior to June
                      20, 1994 within an account registered in their name with
                      the Funds; and (iv) present and retired directors,
                      officers and employees (and their spouses and children
                      under the age of 21) of Union Bank of California, N.A.,
                      HighMark's current or former distributors or their
                      respective affiliated companies who currently own Shares
                      of HighMark Funds which were purchased before April 30,
                      1997. For a description of investors who qualify to
                      purchase Retail Shares, see the Retail Shares prospectus
                      of the Money Market Funds.
 
                        Purchases and redemptions of Shares of the Funds may be
                      made on days on which both the New York Stock Exchange and
                      Federal Reserve wire system are open for business
                      ("Business Days"). The minimum initial investment is
                      generally $1,000 and the minimum subsequent investment is
                      generally $100. For present and retired directors,
                      officers, and employees (and their spouses and children
                      under the age of 21) of Union Bank of California, SEI
                      Financial Services Company and their affiliates, the
                      minimum initial investment is $250 and the minimum
                      subsequent investment is $50. The Fund's initial and
                      subsequent minimum purchase amounts may be waived, in the
                      Distributor's discretion if purchases are made in
                      connection with Individual Retirement Accounts, Keoghs,
                      payroll deduction plans, 401(k) or similar programs or
                      accounts. Shareholders may place orders by telephone.
 
                        Purchase orders will be effective on the Business Day
                      made if the Distributor receives an order before 8:00
                      a.m., Pacific time (11:00 a.m., Eastern time) for the
                      California Tax-Free Money Market Fund, 9:00 a.m., Pacific
                      time (12:00 noon, Eastern time) for the 100% U.S. Treasury
                      Money Market Fund and 10:00 a.m., Pacific time (1:00 p.m.,
                      Eastern time) for the Diversified Money Market and U.S.
                      Government Money Market Funds, on such Business Day.
                      Otherwise, the
 
                                       26
<PAGE>   59
 
                      purchase order will be effective the next Business Day.
                      Effectiveness of a purchase order on any Business Day is
                      contingent on the Custodian's receipt of Federal funds
                      before 11:00 a.m., Pacific time (2:00 p.m., Eastern time),
                      on such day. The purchase price is the net asset value per
                      Share, which is expected to remain constant at $1.00. The
                      net asset value per Share is calculated as of 10:00 a.m.,
                      Pacific time (1:00 p.m., Eastern time), each Business Day
                      based on the amortized cost method. The net asset value
                      per Share of a Fund is determined by dividing the total
                      value of its investments and other assets, less any
                      liabilities, by the total number of its outstanding
                      Shares. HighMark reserves the right to reject a purchase
                      order when the Distributor or the Advisor determines that
                      it is not in the best interest of HighMark and/or
                      Shareholder(s).
 
                        Shares of the Fund are offered only to residents of
                      states in which the shares are eligible for purchase.
 
                        Redemption orders may be made any time before 8:00 a.m.,
                      Pacific time (11:00 a.m., Eastern time) for the California
                      Tax-Free Money Market Fund, 9:00 a.m., Pacific time (12:00
                      noon, Eastern time) for the 100% U.S. Treasury Money
                      Market Fund, and 10:00 a.m., Pacific time (1:00 p.m.,
                      Eastern time) for the Diversified Money Market and U.S.
                      Government Money Market Funds in order to receive that
                      day's redemption price (i.e. the next determined net asset
                      value per share). For redemption orders received before
                      such times for such Funds, payment will be made the same
                      day by transfer of Federal funds. Otherwise, payment will
                      be made on the next Business Day. Redeemed shares are not
                      entitled to dividends declared the day the redemption
                      order is effective. The Funds reserve the right to make
                      payment on redemptions in securities rather than cash.
 
                        Neither HighMark's transfer agent nor HighMark will be
                      responsible for any loss, liability, cost or expense for
                      acting upon wire instructions or upon telephone
                      instructions that it reasonably believes are genuine.
                      HighMark and its transfer agent will each employ
                      reasonable procedures to confirm that telephone
                      instructions are genuine. Such procedures may include
                      taping of telephone conversations. If market conditions
                      are extraordinarily active or extraordinary circumstances
                      exist, and you experience difficulties placing redemption
                      orders by telephone, you may wish to consider placing your
                      order by other means.
 
EXCHANGE
PRIVILEGES              As indicated under GENERAL INFORMATION--Description of
                      HighMark & Its Shares, certain of HighMark's Funds issue
                      two classes of Shares (Retail Shares and Fiduciary
                      Shares); as of the date of this Prospectus, the
                      Distribution Plan and distribution fee payable thereunder
                      are applicable only to such Fund's Retail Shares. A
                      Shareholder's eligibility to exchange into a particular
                      class of Shares will be determined at the time of the
                      exchange. The Shareholder must
 
                                       27
<PAGE>   60
 
                      supply, at the time of the exchange, the necessary
                      information to permit confirmation of qualification.
 
                        Each Fund's Shares may be exchanged for Shares of the
                      class of the various other Funds of HighMark which the
                      Shareholder qualifies to purchase directly so long as the
                      Shareholder maintains the applicable minimum account
                      balance in each Fund in which he or she owns Shares and
                      satisfies the minimum initial and subsequent purchase
                      amounts of the Fund into which the Shares are exchanged.
                      Shareholders may exchange their Fiduciary Shares for
                      Fiduciary Shares of another Fund on the basis of the
                      relative net asset value of the Fiduciary Shares
                      exchanged. Shareholders may also exchange Fiduciary Shares
                      of a Fund for Retail Shares of another Fund. Under such
                      circumstances, the cost of the acquired Retail Shares will
                      be the net asset value per share plus the appropriate
                      sales load.
 
                        Exchanges will be made on the basis of the relative net
                      asset values of the Shares exchanged plus any applicable
                      sales charge. Exchanges are subject to the terms and
                      conditions stated herein and the terms and conditions
                      stated in the respective prospectuses of the Funds.
 
                        Certain entities (including Participating Organizations
                      and Union Bank of California and its affiliates), however,
                      may charge customers a fee with respect to exchanges made
                      on the customer's behalf. Information about these charges,
                      if any, can be obtained by the entity effecting the
                      exchange and this Prospectus should be read in conjunction
                      with that information.
 
                        A Shareholder wishing to exchange Shares in a Fund may
                      do so by contacting the transfer agent at 1-800-433-6884.
                      Exchanges will be effected on any Business Day at the net
                      asset value of the Funds involved in the exchange next
                      determined after the exchange request is received by the
                      transfer agent.
 
                        An exchange is considered to be a sale of Shares for
                      federal income tax purposes on which a Shareholder may
                      realize a capital gain or loss. Exchange privileges may be
                      exercised only in those states where Shares of such other
                      Funds of HighMark may legally be sold. HighMark may
                      materially amend or terminate the exchange privileges
                      described herein upon sixty days' notice.
 
DIVIDENDS               The net income of each Fund is declared daily as a
                      dividend to Shareholders of record at the close of
                      business on the day of declaration.
 
                        Dividends with respect to each Fund are paid monthly in
                      additional full and fractional Shares of the Fund at net
                      asset value as of the date of payment, unless the
                      Shareholder elects to receive such dividends in cash as
                      described below. Shareholders will automatically receive
                      all income dividends and capital gains distributions (if
                      any) paid in respect of a Fund's Shares in additional full
                      and
 
                                       28
<PAGE>   61
 
                      fractional Shares of the same class. Shareholders wishing
                      to receive their dividends in cash (or wishing to revoke a
                      previously made election) must notify the transfer agent
                      at P.O. Box 8416, Boston, MA 02266-8416, and such election
                      (or revocation thereof) will become effective with respect
                      to dividends having record dates after notice has been
                      received. Dividends paid in additional Shares receive the
                      same tax treatment as dividends paid in cash. Dividends
                      are paid in cash not later than seven Business Days after
                      a Shareholder's complete redemption of his or her Shares.
                      Net realized capital gains, if any, are distributed at
                      least annually to Shareholders of record.
 
FEDERAL
TAXATION                Each Fund intends to qualify for treatment as a
                      "regulated investment company" under the Internal Revenue
                      Code of 1986, as amended (the "Code"), and to distribute
                      substantially all of its net investment income so that it
                      is not required to pay federal taxes on these amounts.
                      Because all of the net investment income of the
                      Diversified Money Market Fund, the U.S. Government Money
                      Market Fund, the 100% U.S. Treasury Money Market Fund and
                      the California Tax-Free Money Market Fund is expected to
                      be derived from interest, it is anticipated that no part
                      of any distribution will be eligible for the federal
                      dividends received deduction for corporations. The Funds
                      are not managed to generate any long-term capital gains
                      and, therefore, the Funds do not foresee paying any
                      significant "capital gains dividends" as described in the
                      Code.
 
                        Shareholders will be subject to federal income tax with
                      respect to dividends paid by the Diversified Money Market
                      Fund, the U.S. Government Money Market Fund and the 100%
                      U.S. Treasury Money Market Fund (including any capital
                      gains dividends). Dividends that are attributable to
                      interest on U.S. Government obligations earned by the
                      Funds may be exempt from state and local tax, and
                      Shareholders should consult their own tax advisors to
                      determine whether these dividends are eligible for the
                      state and local tax exemption. Dividends (except to the
                      extent attributable to gains or securities lending income)
                      paid by the 100% U.S. Treasury Money Market Fund will be
                      exempt from California and Oregon personal income taxes.
                      HighMark intends to advise Shareholders annually of the
                      proportion of a Fund's dividends that consists of interest
                      on U.S. Government obligations.
 
                        Exempt-interest dividends from the California Tax-Free
                      Money Market Fund are excludable from gross income for
                      federal income tax purposes. Such dividends may be taxable
                      to Shareholders under state or local law as ordinary
                      income even though all or a portion of the amounts may be
                      derived from interest on tax-exempt obligations which, if
                      realized directly, would be exempt from such taxes.
                      Shareholders are advised to consult a tax advisor with
                      respect to whether exempt-interest dividends retain the
                      exclusion if such Shareholder would be treated as a
                      "substantial user" or a "related person" to such user
                      under the Code.
 
                                       29
<PAGE>   62
 
                        Under the Code, interest on indebtedness incurred or
                      continued by a Shareholder to purchase or carry Shares of
                      the California Tax-Free Money Market Fund is not
                      deductible for federal income tax purposes to the extent
                      the Fund distributes exempt-interest dividends during the
                      Shareholder's taxable year.
 
                        Under the Code, if a Shareholder sells a Share of the
                      California Tax-Free Money Market Fund after holding it for
                      six months or less, any loss on the sale or exchange of
                      such Share will be disallowed to the extent of the amount
                      of any exempt-interest dividends that the Shareholder has
                      received with respect to the Share that is sold.
 
                        In addition, any loss (not already disallowed as
                      provided in the preceding sentence) realized upon a
                      taxable disposition of shares held for six months or less
                      will be treated as long-term, rather than short-term, to
                      the extent of any long-term capital gain distributions
                      received by the shareholder with respect to the shares.
 
                        The California Tax-Free Money Market Fund may at times
                      purchase Municipal Securities at a discount from the price
                      at which they were originally issued. For federal income
                      tax purposes, some or all of this market discount will be
                      included in the California Tax-Free Money Market Fund's
                      ordinary income and will be taxable to Shareholders as
                      such when it is distributed to them.
 
                        To the extent dividends paid to Shareholders are derived
                      from taxable income (for example, from interest on
                      certificates of deposit or repurchase agreements), or from
                      long-term or short-term capital gains, such dividends will
                      be subject to federal income tax, whether such dividends
                      are paid in the form of cash or additional Shares. A
                      Shareholder should consult his or her tax advisor for
                      special advice.
 
                        Under the Code, dividends attributable to interest on
                      certain private activity bonds issued after August 7, 1986
                      must be included in alternative minimum taxable income for
                      the purpose of determining liability (if any) for the
                      federal alternative minimum tax. In addition,
                      exempt-interest dividends will be included in a
                      corporation's "adjusted current earnings" for purposes of
                      the alternative minimum tax (except to the extent derived
                      from interest on certain private activity bonds issued
                      after August 7, 1986, which interest would already be
                      included in alternative minimum taxable income as a
                      specific item of tax preference). Shareholders of the
                      California Tax-Free Money Market Fund receiving social
                      security or railroad retirement benefits may be taxed on a
                      portion of those benefits as a result of receiving
                      tax-exempt income (including exempt-interest dividends
                      distributed by the California Tax-Free Money Market Fund).
 
                        If, at the close of each quarter of its taxable year,
                      the California Tax-Free Money Market Fund continues to
                      qualify for the special federal income tax
 
                                       30
<PAGE>   63
 
                      treatment afforded regulated investment companies and at
                      least 50% of the value of the Fund's total assets consists
                      of California Exempt-Interest Securities, then "California
                      exempt interest dividends" attributable to these
                      securities will be exempt from California personal income
                      tax. A "California-exempt interest dividend" is any
                      dividend distributed by the Fund to the extent that it is
                      derived from the interest received by the Fund on
                      California Exempt-Interest Securities (less related
                      expenses) and designated as such by written notice to
                      Shareholders. For further details, see the Statement of
                      Additional Information. Dividends received by Shareholders
                      subject to California state corporate franchise tax will
                      be taxed as ordinary dividends notwithstanding that all or
                      a portion of such dividends are exempt from California
                      personal income tax. Distributions other than
                      "California-exempt interest dividends" by the Fund to
                      California residents will be subject to California
                      personal income tax, whether or not such dividends are
                      reinvested.
 
                        Additional information regarding federal and California
                      taxes is contained in the Statement of Additional
                      Information. However, the foregoing and the material in
                      the Statement of Additional Information are only brief
                      summaries of some of the important tax considerations
                      generally affecting a money market fund and its
                      Shareholders. In addition, the foregoing discussion and
                      the federal and California tax information in the
                      Statement of Additional Information are based on tax laws
                      and regulations which are in effect as of the date of this
                      Prospectus; these laws and regulations may subsequently
                      change, and such changes could be retroactive.
                      Shareholders will be advised at least annually as to the
                      federal income tax status, and, in the case of
                      Shareholders of the California Tax-Free Money Market Fund,
                      as to the California income tax status, of distributions
                      made during the year.
 
SERVICE
ARRANGEMENTS          The Advisor
 
                        Pacific Alliance Capital Management, a division of Union
                      Bank of California, N.A. serves as the Funds' investment
                      advisor. Subject to the general supervision of HighMark's
                      Board of Trustees, the Advisor manages each Fund in
                      accordance with its investment objective and policies,
                      makes decisions with respect to and places orders for all
                      purchases and sales of the Fund's investment securities,
                      and maintains the Fund's records relating to such
                      purchases and sales.
 
                        For the expenses assumed and services provided by the
                      Advisor as each Fund's investment advisor, Union Bank of
                      California receives a fee from the Diversified Money
                      Market Fund, the U.S. Government Money Market Fund, the
                      100% U.S. Treasury Money Market Fund, and the California
                      Tax-Free Money Market Fund computed daily and paid
                      monthly, at the annual rate of thirty one-hundredths of
                      one percent (.30%) of each Fund's average daily net
                      assets. Union Bank of
 
                                       31
<PAGE>   64
 
                      California may from time to time agree to voluntarily
                      reduce its advisory fee. While there can be no assurance
                      that Union Bank of California will choose to make such an
                      agreement, any voluntary reductions in Union Bank of
                      California's advisory fee will lower the Fund's expenses,
                      and thus increase the Fund's yield and total return,
                      during the period such voluntary reductions are in effect.
                      During HighMark's fiscal year ended July 31, 1996, Union
                      Bank of California received investment advisory fees from
                      the Diversified Money Market Fund, the U.S. Government
                      Money Market Fund, and the 100% U.S. Treasury Money Market
                      Fund aggregating 0.40% of each Fund's average daily net
                      assets and from the California Tax-Free Money Market Fund
                      aggregating 0.23% of the Fund's average daily net assets.
 
                        On April 1, 1996, The Bank of California, N.A.,
                      HighMark's then investment advisor, combined with Union
                      Bank and the resulting bank changed its name to Union Bank
                      of California, N.A. At the same time, the banks'
                      investment management divisions were combined. Each of
                      Union Bank and The Bank of California, N.A. (or their
                      predecessor banks) has been in banking since the early
                      1900's and, historically, each has had significant
                      investment functions within its trust and investment
                      division. UnionBanCal Corporation, the parent of Union
                      Bank of California, N.A., is a publicly held corporation,
                      but is principally held by the Bank of Tokyo-Mitsubishi,
                      Limited. As of September 30, 1996, Union Bank of
                      California and its subsidiaries had approximately $28.7
                      billion in commercial assets. Pacific Alliance Capital
                      Management is a division of Union Bank of California's
                      Trust and Investment Management Group, which, as of June
                      30, 1996, had approximately $13.4 billion of assets under
                      management. The Advisor, with a team of approximately 45
                      stock and bond research analysts, portfolio managers and
                      traders, has been providing investment management services
                      to individuals, institutions and large corporations since
                      1917.
 
                      Administrator
 
                        SEI Fund Resources (the "Administrator") and HighMark
                      are parties to an administration agreement (the
                      "Administration Agreement"). Under the terms of the
                      Administration Agreement, the Administrator provides
                      HighMark with certain management services, including all
                      necessary office space, equipment, personnel, and
                      facilities.
 
                        The Administrator is entitled to a fee, which is
                      calculated daily and paid monthly, at an annual rate of
                      .20% of the average daily net assets of the Funds. The
                      Administrator may waive its fee or reimburse various
                      expenses to the extent necessary to limit the total
                      operating expenses of a Fund's Fiduciary Shares. Any such
                      waiver is voluntary and may be terminated at any time in
                      the Administrator's sole discretion. Currently, the
                      Administrator has agreed to waive its fee to the rate of
                      .18% of the average daily net assets of the Funds.
 
                                       32
<PAGE>   65
 
                        Pursuant to a separate agreement with the Administrator,
                      Union Bank of California, N.A. performs sub-administration
                      services on behalf of each Fund, for which it receives a
                      fee paid by the Administrator at the annual rate of up to
                      0.05% of the average daily net assets of the Funds. Union
                      Bank of California has voluntarily agreed to reduce this
                      fee to 0.03%, but reserves the right to terminate its
                      waiver at any time in its sole discretion. A description
                      of the services performed by Union Bank of California
                      pursuant to this Agreement is contained in the Statement
                      of Additional Information.
 
                      The Transfer Agent
 
                        State Street Bank and Trust Company serves as the
                      transfer agent, dividend disbursing agent, and as a
                      shareholder servicing agent for the Fiduciary Shares of
                      HighMark, for which services it receives a fee.
 
                      Shareholder Service Plan
 
                        To support the provision of Shareholder services to both
                      classes of Shares, HighMark has adopted a Shareholder
                      Service Plan. A description of the services performed by
                      service providers pursuant to the Shareholder Service Plan
                      is contained in the Statement of Additional Information.
                      In consideration of services provided by any service
                      provider, which may include Union Bank of California,
                      N.A., Bank of Tokyo-Mitsubishi, Ltd., or their respective
                      affiliates, each Fund may pay a fee at the rate of up to
                      0.25% of its average daily net assets to such service
                      provider. The service provider may waive such fees at any
                      time. Any such waiver is voluntary and may be terminated
                      at any time. Currently, such fees are being waived to the
                      rate of 0.00% of average daily net assets.
 
                      Distributor
 
                        SEI Financial Services Company (the "Distributor") and
                      HighMark are parties to a distribution agreement
                      ("Distribution Agreement"). The Distribution Agreement is
                      renewable annually and may be terminated by the
                      Distributor, by a majority vote of the Disinterested
                      Trustees or by a majority vote of the outstanding
                      securities of HighMark upon not more than 60 days written
                      notice by either party, or upon assignment by the
                      Distributor. Fiduciary Shares are not subject to
                      HighMark's Distribution Plan or a distribution fee.
 
                      Banking Laws
 
                        Union Bank of California believes that it may perform
                      the services for the Funds contemplated by its investment
                      advisory agreement with HighMark without a violation of
                      applicable banking laws and regulations. Union Bank of
                      California also believes that it may perform
                      sub-administration and sub-accounting services on behalf
                      of each Fund, for which it receives compensation from SEI
                      Fund Resources without a violation of applicable banking
                      laws and regulations.
 
                                       33
<PAGE>   66
 
                      Future changes in federal or state statutes and
                      regulations relating to permissible activities of banks or
                      bank holding companies and their subsidiaries and
                      affiliates, as well as further judicial or administrative
                      decisions or interpretations of present and future
                      statutes and regulations, could change the manner in which
                      Union Bank of California or the Advisor could continue to
                      perform such services for the Funds. For a further
                      discussion of applicable banking laws and regulations, see
                      the Statement of Additional Information.
 
                      Custodian
 
                        Union Bank of California also serves as the custodian
                      and as a shareholder servicing agent for the Funds. The
                      Custodian holds cash, securities and other assets of
                      HighMark as required by the 1940 Act.
 
                        Services performed by Union Bank of California, as the
                      Funds' shareholder servicing agent and custodian, as well
                      as the basis of remuneration for such services, are
                      described in the Statement of Additional Information.
 
GENERAL
INFORMATION           Description of HighMark & Its Shares
 
                        HighMark was organized as a Massachusetts business trust
                      on March 10, 1987, and consists of sixteen series of
                      Shares open for investment representing units of
                      beneficial interest in HighMark's Growth Fund, Income
                      Equity Fund, Balanced Fund, Value Momentum Fund, Blue Chip
                      Growth Fund, Emerging Growth Fund, International Equity
                      Fund, Bond Fund, Intermediate-Term Bond Fund, Government
                      Securities Fund, Convertible Securities Fund, California
                      Intermediate Tax-Free Bond Fund, Diversified Money Market
                      Fund, U.S. Government Money Market Fund, 100% U.S.
                      Treasury Money Market Fund and California Tax-Free Money
                      Market Fund. As of the date hereof, no Shares of the Value
                      Momentum Fund, the Blue Chip Growth Fund, the Emerging
                      Growth Fund, the International Equity Fund, the
                      Intermediate-Term Bond Fund, the Convertible Securities
                      Fund, the Government Securities Fund and the California
                      Intermediate Tax-Free Bond Fund had been offered for sale
                      in HighMark. Shares of each Fund are freely transferable,
                      are entitled to distributions from the assets of the Fund
                      as declared by the Board of Trustees, and, if HighMark
                      were liquidated, would receive a pro rata share of the net
                      assets attributable to that Fund. Shares are without par
                      value.
 
                        As noted above, pursuant to a Multiple Class Plan on
                      file with the Securities and Exchange Commission
                      permitting the issuance and sale of two classes of Shares
                      in selected Funds, Shares of such Funds have been divided
                      into two classes, designated Retail Shares and Fiduciary
                      Shares. For information regarding the Retail Shares of the
                      Funds, interested persons may contact the Distributor for
                      a prospectus at 1-800-433-6884.
 
                                       34
<PAGE>   67
 
                        HighMark believes that as of November 22, 1996 Union
                      Bank of California (475 Sansome Street, Post Office Box
                      45000, San Francisco, CA 94104) was the Shareholder of
                      record of 98.42% of the Fiduciary Shares of the
                      Diversified Money Market Fund, 93.46% of the Fiduciary
                      Shares of the U.S. Government Money Market Fund, 95.03% of
                      the Fiduciary Shares of the 100% U.S. Treasury Money
                      Market Fund, and substantially all of the Fiduciary Shares
                      of the California Tax-Free Money Market Fund.
 
                      Performance Information
 
                        From time to time, HighMark may advertise the "yield"
                      and "effective yield" with respect to the Fiduciary Shares
                      of each Fund and a "tax-equivalent yield" and
                      "tax-equivalent effective yield" for federal, California
                      and Oregon income tax purposes with regard to the
                      Fiduciary Shares of each of the 100% U.S. Treasury Money
                      Market Fund and the California Tax-Free Money Market Fund.
                      Performance information is computed separately for a
                      Fund's Retail and Fiduciary Shares in accordance with the
                      formulas described below. Each yield figure is based on
                      historical earnings and is not intended to indicate future
                      performance.
 
                        The "yield" of a Fund's Fiduciary Shares refers to the
                      income generated by an investment in the class over a
                      seven-day period (which period will be stated in the
                      advertisement). This income is then "annualized." That is,
                      the amount of income generated by the investment during
                      that week is assumed to be generated each week over a
                      52-week period and is shown as a percentage of the
                      investment. The "effective yield" is calculated similarly
                      but, when annualized, the income earned by an investment
                      in the class is assumed to be reinvested. The "effective
                      yield" will be slightly higher than the "yield" because of
                      the compounding effect of this assumed reinvestment.
 
                        The 100% U.S. Treasury Money Market Fund's
                      tax-equivalent yield and tax-equivalent effective yield
                      will reflect the amount of income subject to California or
                      Oregon personal income taxation at the rate specified in
                      the advertisement that a taxpayer would have to earn in
                      order to obtain the same after tax income as that derived
                      from the yield and effective yield of the Fiduciary class.
                      The California Tax-Free Money Market Fund's tax-equivalent
                      yield and tax-equivalent effective yield reflect the
                      amount of income subject to federal income taxation and
                      California personal income taxation at the rate specified
                      in the advertisement that a taxpayer would have to earn in
                      order to obtain the same after tax income as that derived
                      from the yield and effective yield of the Fiduciary class.
 
                        Tax-equivalent yields and tax-equivalent effective
                      yields with respect to a class will be significantly
                      higher than the yield and effective yield of that class.
 
                                       35
<PAGE>   68
 
                        From time to time, HighMark may advertise the aggregate
                      total return and average annual total return of the Funds.
                      The aggregate total return and average annual total return
                      of each Fund may be quoted for the life of each Fund and
                      for five-year and one-year periods, in each case, through
                      the most recent calendar quarter. Aggregate total return
                      is determined by calculating the change in the value of a
                      hypothetical $1,000 investment in a Fund over the
                      applicable period that would equate the initial amount
                      invested to the ending redeemable value of the investment.
                      The ending redeemable value includes dividends and capital
                      gain distributions reinvested at net asset value. Average
                      annual total return is calculated by annualizing a Fund's
                      aggregate total return over the relevant number of years.
                      The resulting percentage indicates the positive or
                      negative investment results that an investor in a Fund
                      would have experienced from changes in Share price and
                      reinvestment of dividends and capital gain distributions.
 
                        Each Fund may periodically compare its performance to
                      the performance of: other mutual funds tracked by
                      mutual-fund rating services (such as Lipper Analytical),
                      financial and business publications and periodicals; broad
                      groups of comparable mutual funds; unmanaged indices which
                      may assume investment of dividends but generally do not
                      reflect deductions for administrative and management
                      costs; or other investment alternatives. Certain Funds may
                      advertise performance that includes results from periods
                      in which the Fund's assets were managed in a
                      non-registered predecessor vehicle.
 
                      Miscellaneous
 
                        Shareholders will be sent unaudited semi-annual reports
                      and annual reports audited by independent public
                      accountants.
 
                        Shareholders are entitled to one vote for each Share
                      held in a Fund as determined on the record date for any
                      action requiring a vote by the Shareholders, and a
                      proportionate fractional vote for each fractional Share
                      held. Shareholders of HighMark will vote in the aggregate
                      and not by series or class except (i) as otherwise
                      expressly required by law or when HighMark's Board of
                      Trustees determines that the matter to be voted upon
                      affects only the interests of the Shareholders of a
                      particular series or particular class, and (ii) only
                      Retail Shares will be entitled to vote on matters
                      submitted to a Shareholder vote relating to the
                      Distribution Plan. HighMark is not required to hold
                      regular annual meetings of Shareholders, but may hold
                      special meetings from time to time.
 
                        HighMark's Trustees are elected by Shareholders, except
                      that vacancies may be filled by vote of the Board of
                      Trustees. Trustees may be removed by the Board of
                      Trustees, or by Shareholders at a meeting called for such
                      purpose. For information about how Shareholders may call
                      such a meeting and communicate
 
                                       36
<PAGE>   69
 
                      with other Shareholders for that purpose, see ADDITIONAL
                      INFORMATION--Miscellaneous in the Statement of Additional
                      Information.
 
                        Inquiries may be directed in writing to SEI Financial
                      Services Company, Oaks, Pennsylvania 19456, or by calling
                      toll free 1-800-433-6884.
 
DESCRIPTION OF
PERMITTED
INVESTMENTS             The following is a description of permitted investments
                      for the HighMark Money Market Funds.
 
                        ASSET-BACKED SECURITIES (NON-MORTGAGE)--Debt Instruments
                      secured by company receivables, truck and auto loans,
                      leases, and credit card receivables. Such securities are
                      generally issued as pass-through certificates, which
                      represent undivided fractional ownership interests in the
                      underlying pools of assets. Such securities also may be
                      debt instruments, which are also known as collateralized
                      obligations and are generally issued as the debt of a
                      special purpose entity, such as a trust, organized solely
                      for the purpose of owning such assets and issuing such
                      debt. The purchase of non-mortgage asset-backed securities
                      raises risk considerations peculiar to the financing of
                      the instruments underlying such securities. Asset-backed
                      securities entail prepayment risk, which may vary
                      depending on the type of asset, but is generally less than
                      the prepayment risk associated with mortgage-backed
                      securities.
 
                        Like mortgages underlying mortgage-backed securities,
                      underlying automobile sales contracts or credit card
                      receivables are subject to substantial prepayment risk,
                      which may reduce the overall return to certificate
                      holders. Nevertheless, principal prepayment rates tend not
                      to vary as much in response to changes in interest rates
                      and the short-term nature of the underlying car loans or
                      other receivables tend to dampen the impact of any change
                      in the prepayment level. Certificate holders may also
                      experience delays in payment on the certificates if the
                      full amounts due on underlying sales contracts or
                      receivables are not realized by the trust because of
                      unanticipated legal or administrative costs of enforcing
                      the contracts or because of depreciation or damage to the
                      collateral (usually automobiles) securing certain
                      contracts, or other factors. If consistent with their
                      investment objectives and policies, the Money Market Funds
                      may invest in other asset-backed securities that may be
                      developed in the future.
 
                        BANKERS' ACCEPTANCES--Bills of exchange or time drafts
                      drawn on and accepted by commercial banks. They are used
                      by corporations to finance the shipment and storage of
                      goods and to furnish dollar exchange. Maturities are
                      generally six months or less.
 
                        CERTIFICATES OF DEPOSIT--Negotiable interest-bearing
                      instruments with a specific maturity. Certificates of
                      deposit are issued by banks and savings
 
                                       37
<PAGE>   70
 
                      and loan institutions in exchange for the deposit of funds
                      and normally can be traded in the secondary market prior
                      to maturity.
 
                        COMMERCIAL PAPER--Unsecured short-term promissory notes
                      issued by corporations and other entities. Maturities on
                      these issues vary from a few days to nine months. Purchase
                      of such instruments involves a risk of default by the
                      issuer.
 
                        DERIVATIVES--Instruments whose value is derived from an
                      underlying contract, index or security, or any combination
                      thereof, including futures, options (e.g., puts and
                      calls), options on futures, swap agreements, and some
                      mortgage-backed securities (CMOs, REMICs, IOs and POs).
                      See elsewhere in this "DESCRIPTION OF PERMITTED
                      INVESTMENTS" for discussions of these various instruments,
                      and see "INVESTMENT OBJECTIVES" and "INVESTMENT POLICIES"
                      for more information about any policies and limitations
                      applicable to their use.
 
                        INVESTMENT GRADE BONDS--Interest-bearing or discounted
                      government or corporate securities that obligate the
                      issuer to pay the bondholder a specified sum of money,
                      usually at specific intervals, and to repay the principal
                      amount of the loan at maturity. Investment grade bonds are
                      those rated BBB or better by S&P or Baa or better by
                      Moody's or similarly rated by other NRSROs, or, if not
                      rated, determined to be of comparable quality by the
                      Advisor.
 
                        LOAN PARTICIPATIONS--Loan participations are interests
                      in loans to U.S. corporations (i.e., borrowers) which are
                      administered by the lending bank or agent for a syndicate
                      of lending banks, and sold by the lending bank or
                      syndicate member ("intermediary bank"). In a loan
                      participation, the borrower of the underlying loan will be
                      deemed to be the issuer of the participation interest
                      (except to the extent a purchasing Fund derives its rights
                      from the intermediary bank). Because the intermediary bank
                      does not guarantee a loan participation in any way, a loan
                      participation is subject to the credit risks associated
                      with the underlying corporate borrower. In addition, in
                      the event the underlying corporate borrower fails to pay
                      principal and interest when due, a Fund may encounter
                      delays, expenses and risks that are greater than those
                      that would have been involved if the Fund had purchased a
                      direct obligation (such as commercial paper) of such
                      borrower because it may be necessary under the terms of
                      the loan participation, for the Fund to assert its rights
                      against the borrower through the intermediary bank.
                      Moreover, under the terms of a loan participation, the
                      purchasing Fund may be regarded as a creditor of the
                      intermediary bank (rather than of the underlying corporate
                      borrower), so that a Fund may also be subject to the risk
                      that the issuing bank may become insolvent. Further, in
                      the event of the bankruptcy or insolvency of the corporate
                      borrower, a loan participation may be subject to certain
                      defenses that can be asserted by such borrower as a result
                      of improper conduct by the issuing bank. The secondary
                      market, if any, for these
 
                                       38
<PAGE>   71
 
                      loan participations is limited, and any such participation
                      purchased by a Fund may be regarded as illiquid.
 
                        MUNICIPAL FORWARDS--Municipal Forwards are forward
                      commitments for the purchase of tax-exempt bonds with a
                      specified coupon to be delivered by an issuer at a future
                      date, typically exceeding 45 days but normally less than
                      one year after the commitment date. Municipal forwards are
                      normally used as a refunding mechanism for bonds that may
                      only be redeemed on a designated future date. As with
                      forward commitments and when-issued securities, municipal
                      forwards are subject to market fluctuations due to
                      changes, real or anticipated, in market interest rates
                      between the commitment date and the settlement date and
                      will have the effect of leveraging the Fund's assets.
                      Municipal forwards may be considered to be illiquid
                      investments. The Fund will maintain liquid, high-grade
                      securities in a segregated account in an amount at least
                      equal to the purchase price of the municipal forward.
 
                        MUNICIPAL SECURITIES--Municipal securities consist of
                      (i) debt obligations issued by or on behalf of public
                      authorities to obtain funds to be used for various public
                      facilities, for refunding outstanding obligations, for
                      general operating expenses and for lending such funds to
                      other public institutions and facilities, and (ii) certain
                      private activity and industrial development bonds issued
                      by or on behalf of public authorities to obtain funds to
                      provide for the construction, equipment, repair or
                      improvement of privately operated facilities. Municipal
                      notes include general obligation notes, tax anticipation
                      notes, revenue anticipation notes, bond anticipation
                      notes, certificates of indebtedness, demand notes and
                      construction loan notes. Municipal bonds include general
                      obligation bonds, revenue or special obligation bonds,
                      private activity and industrial development bonds. General
                      obligation bonds are backed by the taxing power of the
                      issuing municipality. Revenue bonds are backed by the
                      revenues of a project or facility, tolls from a toll
                      bridge, for example. The payment of principal and interest
                      on private activity and industrial development bonds
                      generally is dependent solely on the ability of the
                      facility's user to meet its financial obligations and the
                      pledge, if any, of real and personal property so financed
                      as security for such payment.
 
                        PARTICIPATION INTERESTS--Participation interests are
                      interests in municipal securities from financial
                      institutions such as commercial and investment banks,
                      savings and loan associations and insurance companies.
                      These interests may take the form of participations,
                      beneficial interests in a trust, partnership interests or
                      any other form of indirect ownership that allows the Fund
                      to treat the income from the investment as exempt from
                      federal income tax. The Fund invests in these
                      participation interests in order to obtain credit
                      enhancement or demand features that would not be available
                      through direct ownership of the underlying municipal
                      securities.
 
                                       39
<PAGE>   72
 
                        RECEIPTS--Interests in separately traded interest and
                      principal component parts of U.S. Treasury obligations
                      that are issued by banks and brokerage firms and are
                      created by depositing Treasury notes and Treasury bonds
                      into a special account at a custodian bank. The custodian
                      holds the interest and principal payments for the benefit
                      of the registered owners of the certificates of such
                      receipts. The custodian arranges for the issuance of the
                      certificates or receipts evidencing ownership and
                      maintains the register. Receipts include "Treasury
                      Receipts" ("TR's"), "Treasury Investment Growth Receipts"
                      ("TIGR's"), and "Certificates of Accrual on Treasury
                      Securities" ("CATS"). TR's, TIGR's and CATS are sold as
                      zero coupon securities, which means that they are sold at
                      a substantial discount and redeemed at face value at their
                      maturity date without interim cash payments of interest or
                      principal. This discount is accreted over the life of the
                      security, and such accretion will constitute the income
                      earned on the security for both accounting and tax
                      purposes. Because of these features, such securities may
                      be subject to greater interest rate volatility than
                      interest-paying securities. See also "FEDERAL TAXATION."
 
                        REPURCHASE AGREEMENTS--Agreements whereby a Fund will
                      acquire securities from approved financial institutions or
                      registered broker-dealers that agree to repurchase the
                      securities at a mutually agreed-upon date and price. The
                      repurchase agreements entered into by the Funds will
                      provide that the underlying security at all times shall
                      have a value equal to 102% of the resale price stated in
                      the agreement. Repurchase agreements involving government
                      securities are not subject to a Fund's fundamental
                      investment limitation on purchasing securities of any one
                      issuer. If the seller defaults on its repurchase
                      obligation or becomes insolvent, the Fund holding such
                      obligations would suffer a loss to the extent that either
                      the proceeds from a sale of the underlying portfolio
                      securities were less than the repurchase price or the
                      Fund's disposition of the securities was delayed pending
                      court action. Securities subject to repurchase agreements
                      will be held by a qualified custodian or in the Federal
                      Reserve/Treasury book-entry system. Repurchase agreements
                      are considered to be loans by a Fund under the Investment
                      Company Act of 1940 (the "1940 Act").
 
                        REVERSE REPURCHASE AGREEMENTS--A Fund may borrow funds
                      for temporary purposes by entering into reverse repurchase
                      agreements, provided such action is consistent with the
                      Fund's investment objective and fundamental investment
                      restrictions; as a matter of non-fundamental policy, each
                      Fund intends to limit such investments to no more than 10%
                      of the value of its total assets. Pursuant to a reverse
                      repurchase agreement, a Fund will sell portfolio
                      securities to financial institutions such as banks or to
                      broker-dealers, and agree to repurchase the securities at
                      a mutually agreed-upon date and price. A Fund intends to
                      enter into reverse repurchase agreements only to avoid
                      otherwise selling securities during unfavorable market
                      conditions to meet redemptions. At the time a Fund
 
                                       40
<PAGE>   73
 
                      enters into a reverse repurchase agreement, it will place
                      in a segregated custodial account assets such as U.S.
                      Government securities or other liquid, high-quality debt
                      securities consistent with the Fund's investment objective
                      having a value equal to 102% of the repurchase price
                      (including accrued interest), and will subsequently
                      monitor the account to ensure that an equivalent value is
                      maintained. Reverse repurchase agreements involve the risk
                      that the market value of the securities sold by a Fund may
                      decline below the price at which a Fund is obligated to
                      repurchase the securities. Reverse repurchase agreements
                      are considered to be borrowings by a Fund under the 1940
                      Act.
 
                        RULE 144A SECURITIES--Rule 144A Securities are
                      securities that have not been registered under the
                      Securities Act of 1933, but which may be traded between
                      certain qualified institutional investors, including
                      investment companies. The absence of a secondary market
                      may affect the value of the Rule 144A Securities. The
                      Board of Trustees of the Group has established guidelines
                      and procedures to be utilized to determine the liquidity
                      of such securities.
 
                        SECURITIES ISSUED ON A FORWARD COMMITMENT BASIS OR
                      WHEN-ISSUED SECURITIES--Securities purchased for delivery
                      beyond the normal settlement date at a stated price and
                      yield and which thereby involve a risk that the yield
                      obtained in the transaction will be less than that
                      available in the market when delivery takes place. When a
                      Fund agrees to purchase when-issued securities or enter
                      into forward commitments, the Group's custodian will be
                      instructed to set aside cash or liquid portfolio
                      securities equal to the amount of the commitment in a
                      segregated account. A Fund will generally not pay for such
                      securities and no income will accrue on the securities
                      until they are received. These securities are recorded as
                      an asset and are subject to changes in value based upon
                      changes in the general level of interest rates. Therefore,
                      the purchase of securities on a "when-issued" basis or
                      forward commitments may increase the risk of fluctuations
                      in a Fund's net asset value.
 
                        SECURITIES LENDING--During the time portfolio securities
                      are on loan from a Fund, the borrower will pay the Fund
                      any dividends or interest paid on the securities. In
                      addition, loans will be subject to termination by the Fund
                      or the borrower at any time and, while a Fund will
                      generally not have the right to vote securities on loan,
                      it will terminate the loan and regain the right to vote if
                      that is considered important with respect to the
                      investment. While the lending of securities may subject a
                      Fund to certain risks, such as delays or an inability to
                      regain the securities in the event the borrower were to
                      default on its lending agreement or enter into bankruptcy,
                      a Fund will receive 100% collateral in the form of cash or
                      U.S. Government securities. This collateral will be valued
                      daily by the lending agent, with oversight by the Advisor,
                      and, should the market value
 
                                       41
<PAGE>   74
 
                      of the loaned securities increase, the borrower will be
                      required to furnish additional collateral to the Fund.
 
                        SECURITIES SUBJECT TO A PUT FEATURE--A "put" feature
                      permits a Fund to sell a fixed income security at a fixed
                      price prior to maturity. The underlying fixed income
                      securities subject to a put may be sold at any time at the
                      market rates. However, unless the put was an integral part
                      of the fixed income security as originally issued, it may
                      not be marketable or assignable. Generally, a premium is
                      paid for a put feature or a put feature is purchased
                      separately which results in a lower yield than would
                      otherwise be available for the same fixed income
                      securities.
 
                        TAX-EXEMPT COMMERCIAL PAPER--Commercial paper, which is
                      commercial paper issued by governments and political
                      sub-divisions.
 
                        TIME DEPOSITS--Non-negotiable receipts issued by U.S. or
                      foreign banks in exchange for the deposit of funds. Like
                      certificates of deposit, they earn a specified rate of
                      interest over a definite period of time; however, they
                      cannot be traded in the secondary market. Time deposits
                      with a withdrawal penalty are considered to be illiquid
                      securities.
 
                        U.S. GOVERNMENT AGENCY SECURITIES--Certain Federal
                      agencies have been established as instrumentalities of the
                      U.S. Government to supervise and finance certain types of
                      activities. Issues of these agencies, while not direct
                      obligations of the U.S. Government, are either backed by
                      the full faith and credit of the United States (e.g., GNMA
                      securities) or supported by the issuing agencies' right to
                      borrow from the U.S. Treasury. The issues of other
                      agencies are supported only by the credit of the
                      instrumentality (e.g., FNMA securities).
 
                        U.S. TREASURY OBLIGATIONS--Bills, notes, and bonds
                      issued by the U.S. Treasury, as well as separately traded
                      interest and principal component parts of such obligations
                      known as Separately Traded Registered Interest and
                      Principal Securities ("STRIPS") that are transferable
                      through the Federal book-entry system.
 
                        U.S. Government Securities generally do not involve the
                      credit risks associated with investments in other types of
                      fixed-income securities, although, as a result, the yields
                      available from U.S. Government Securities are generally
                      lower than the yields available from otherwise comparable
                      corporate fixed-income securities. Like other fixed-income
                      securities, however, the values of U.S. Government
                      Securities change as interest rates fluctuate.
                      Fluctuations in the value of portfolio securities will in
                      many cases not affect interest income on existing
                      portfolio securities, but will be reflected in the Fund's
                      net asset value. Because the magnitude of these
                      fluctuations will generally be greater at times when a
                      Fund's average maturity is longer, under certain market
                      conditions the Fund may invest
 
                                       42
<PAGE>   75
 
                      in short-term investments yielding lower current income
                      rather than investing in higher yielding longer-term
                      securities.
 
                        VARIABLE AMOUNT MASTER DEMAND NOTES--Unsecured demand
                      notes that permit the indebtedness thereunder to vary and
                      provide for periodic adjustments in the interest rate
                      according to the terms of the instrument. Because master
                      demand notes are direct lending arrangements between
                      HighMark and the issuer, they are not normally traded.
                      Although there is no secondary market in these notes, the
                      Fund may demand payment of principal and accrued interest
                      at specified intervals. For purposes of the Fund's
                      investment policies, a variable amount master demand note
                      will be deemed to have a maturity equal to the longer of
                      the period of time remaining until the next readjustment
                      of its interest rate or the period of time remaining until
                      the principal amount can be recovered from the issuer
                      through demand.
 
                        VARIABLE AND FLOATING RATE INSTRUMENTS--Obligations that
                      may carry variable or floating rates of interest, may
                      involve conditional or unconditional demand features and
                      may include variable amount master demand notes. The
                      interest rates on these securities may be reset daily,
                      weekly, quarterly or some other reset period, and may have
                      a floor or ceiling on interest rate changes. There is a
                      risk that the current interest rate on such obligations
                      may not accurately reflect existing market interest rates.
                      A demand instrument with a demand notice period exceeding
                      seven days may be considered illiquid if there is no
                      secondary market for such security.
 
                        YANKEE BONDS--Dollar denominated securities issued by
                      foreign-domiciled issuers that obligate the issuer to pay
                      the bondholder a specified sum of money, usually
                      semiannually, and to repay the principal amount of the
                      loan at maturity. Sovereign bonds are bonds issued by the
                      governments of foreign countries. Supranational bonds are
                      those issued by supranational entities, such as the World
                      Bank and European Investment Bank. Canadian bonds are
                      bonds issued by Canadian provinces.
 
                        ZERO-COUPON OBLIGATIONS--Non-income producing securities
                      evidencing ownership of future interest and principal
                      payments on bonds. These obligations pay no current
                      interest and are typically sold at prices greatly
                      discounted from par value. The return on a zero-coupon
                      obligation, when held to maturity, equals the difference
                      between the par value and the original purchase price.
 
                        For federal income tax purposes, the difference between
                      the par value and the original issue price (original issue
                      discount) is included in the income of a holder of a
                      zero-coupon obligation over the term of the obligation
                      even though the interest is not paid until maturity. The
                      amount included in income is determined under a constant
                      interest rate method. In addition, if an obligation is
                      purchased
 
                                       43
<PAGE>   76
 
                      subsequent to its original issue, a holder such as the
                      Income Funds may elect to include market discount in
                      income currently on a ratable accrual method or a constant
                      interest rate method. Market discount is the difference
                      between the obligation's "adjusted issue price" (the
                      original issue price plus original issue discount accrued
                      to date) and the holder's purchase price. If no such
                      election is made, gain on the disposition of a market
                      discount obligation is treated as ordinary income (rather
                      than capital gain) to the extent it does not exceed the
                      accrued market discount.
 
                        Zero-coupon obligations have greater price volatility
                      than other fixed-income obligations of similar maturity
                      and such obligations will be purchased when the yield
                      spread, in light of the obligation's duration, is
                      considered advantageous.
 
                                       44
<PAGE>   77
 
                          HighMark MONEY MARKET FUNDS
                            INVESTMENT PORTFOLIOS OF
                                 HighMark FUNDS
                   For further information (including current
                  yield, purchase and redemption information),
                              call 1-800-433-6884
 
INVESTMENT ADVISOR
Pacific Alliance Capital Management,
a division of Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
CUSTODIAN
Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
ADMINISTRATOR & DISTRIBUTOR
SEI Fund Resources and
SEI Financial Services Company
Oaks, Pennsylvania 19456
 
LEGAL COUNSEL
Ropes & Gray
One Franklin Square
1301 K Street, N.W., Suite 800 East
Washington, D.C. 20005
 
AUDITORS
Deloitte & Touche LLP
1700 Courthouse Plaza Northeast
Dayton, OH 45402
 
  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS IN CONNECTION WITH THE OFFERING
MADE BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR
REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY HIGHMARK OR
ITS DISTRIBUTOR. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFERING BY HIGHMARK OR
BY THE DISTRIBUTOR IN ANY JURISDICTION IN WHICH SUCH OFFERING MAY NOT LAWFULLY
BE MADE.
 
NOT FDIC INSURED
<PAGE>   78
                               FIXED INCOME FUNDS

                               - Intermediate-Term
                                 Bond Fund

                               - Bond Fund



                               Prospectus


                               Retail Shares

                               March 28, 1997





84824-B(3/97)           [LOGO] HIGHMARK(SM)
                               FUNDS
<PAGE>   79
 
                                 HIGHMARK FUNDS
 
                               FIXED INCOME FUNDS
 
  HighMark Funds ("HighMark") is an open-end, diversified, registered investment
company that offers a convenient means of investing in one or more
professionally managed portfolios of securities. This Prospectus relates to
HighMark's:
 
                         - Intermediate-Term Bond Fund
                         - Bond Fund
 
                                 RETAIL SHARES
 
  HighMark's Retail Shares are offered to investors who are not fiduciary
clients of Union Bank of California, N.A., and who are not otherwise eligible
for HighMark's Fiduciary Shares.
 
  This Prospectus sets forth concisely the information about HighMark and the
Funds that a prospective investor should know before investing. Investors are
advised to read this Prospectus and retain it for future reference. A Statement
of Additional Information dated the same date as this Prospectus has been filed
with the Securities and Exchange Commission and is available without charge by
writing the Distributor, SEI Financial Services Company, Oaks, Pennsylvania
19456, or by calling 1-800-433-6884. The Statement of Additional Information is
incorporated into this Prospectus by reference. This Prospectus relates only to
the Retail Shares of the Fixed Income Funds. Interested persons who wish to
obtain a prospectus for the other Funds of HighMark may contact the Distributor
at the above address and telephone number.
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
   EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE
      SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
        COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS
             PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
      HIGHMARK'S SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR
 ENDORSED BY, ANY BANK, INCLUDING UNION BANK OF CALIFORNIA, N.A., BANK OF
 TOKYO-MITSUBISHI, LIMITED OR ANY OF THEIR AFFILIATES OR CORRESPONDENTS.
 HIGHMARK'S SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT INSURANCE
 CORPORATION OR ANY OTHER GOVERNMENT AGENCY. INVESTMENT IN HIGHMARK INVOLVES
 RISKS, INCLUDING POSSIBLE LOSS OF THE PRINCIPAL AMOUNT INVESTED.
 
March 28, 1997
Retail Shares
<PAGE>   80
 
                                    SUMMARY
 
  HIGHMARK FUNDS ("HighMark") is an open-end, diversified, registered investment
company providing a convenient way to invest in professionally managed
portfolios of securities. The following provides basic information about the
Retail Shares of the Intermediate-Term Bond and Bond Funds (each a "Fund" and
sometimes referred to in this prospectus as the "Fixed Income Funds.") This
summary is qualified in its entirety by reference to the more detailed
information provided elsewhere in the Prospectus and in the Statement of
Additional Information.
 
  WHAT ARE THE FUNDS' INVESTMENT OBJECTIVES? THE INTERMEDIATE-TERM BOND FUND
seeks total return through investments in fixed-income securities. THE BOND FUND
seeks current income through investments in long-term, fixed-income securities.
(See "INVESTMENT OBJECTIVES")
 
  WHAT ARE THE FUNDS' PERMITTED INVESTMENTS? THE INTERMEDIATE-TERM BOND FUND
primarily invests in bonds. THE BOND FUND invests in long-term bonds. Bonds
include debt obligations such as bonds, notes, debentures and securities
convertible into or exercisable for debt obligations that are issued by U.S.
corporations or issued or guaranteed by the U.S. Government, its agencies, or
instrumentalities; investments may also include zero-coupon obligations,
mortgage-related securities and asset-backed securities. (See "INVESTMENT
POLICIES")
 
  WHAT ARE THE RISKS INVOLVED WITH AN INVESTMENT IN THE FUNDS? The investment
policies of each Fund entail certain risks and considerations of which an
investor should be aware. The market value of a Fund's fixed income investments
will change in response to interest rate changes and other factors. During
periods of falling interest rates, the value of outstanding fixed income
securities generally rises. Conversely, during periods of rising interest rates,
the value of such securities generally declines. (See "Risk Factors")
 
  ARE MY INVESTMENTS INSURED? HighMark's Shares are not federally insured by the
FDIC or any other government agency. Any guarantee by the U.S. Government, its
agencies or any instrumentalities of the securities in which any Fund invests
guarantees only the payment of principal and interest on the guaranteed
security, and does not guarantee the total return or value of the security or
total return or value of Shares of that Fund.
 
  WHO IS THE ADVISOR? Pacific Alliance Capital Management, a division of Union
Bank of California, N.A., serves as the Advisor to HighMark. (See "The Advisor")
 
  WHO IS THE ADMINISTRATOR? SEI Fund Resources serves as the Administrator of
HighMark. (See "The Administrator")
 
  WHO IS THE CUSTODIAN? Union Bank of California, N.A., (the "Bank") serves as
the Custodian of HighMark's assets. (See "The Custodian")
 
  WHO IS THE DISTRIBUTOR? SEI Financial Services Company acts as distributor of
HighMark's Shares. (See "The Distributor")
 
  HOW DO I PURCHASE AND REDEEM SHARES? Purchases and redemptions may be made
through the Distributor on days on which both the New York Stock Exchange and
the Federal Reserve wire system are open for business ("Business Days"). The
minimum initial investment is generally $1,000. A purchase order will be
 
                                        2
<PAGE>   81
 
effective if the Distributor receives an order prior to 1:00 p.m., Pacific time
(4:00 p.m., Eastern time). Purchase orders for Shares will be executed at a per
Share price equal to the asset value next determined after the purchase order is
effective (plus any applicable sales charge). Redemption orders must be placed
prior to 1:00 p.m., Pacific time (4:00 p.m., Eastern time) on any Business Day
for the order to be effective that day. (See "HOW TO PURCHASE SHARES AND
REDEMPTION OF SHARES")
 
  HOW ARE DIVIDENDS PAID? Substantially all of the net investment income
(exclusive of capital gains) of the Funds is distributed in the form of monthly
dividends to Shareholders of record. Any capital gain is distributed at least
annually. Distributions are paid in additional Shares unless the Shareholder
elects to take the payment in cash. (See "DIVIDENDS")
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
Summary................................................................................   2
Fixed Income Funds Fee Table...........................................................   5
Financial Highlights...................................................................   7
Fund Description.......................................................................  10
Investment Objectives..................................................................  10
Investment Policies....................................................................  10
  Intermediate-Term Bond Fund..........................................................  10
  Bond Fund............................................................................  11
General................................................................................  11
  Money Market Instruments.............................................................  11
  Illiquid and Restricted Securities...................................................  12
  Lending of Portfolio Securities......................................................  12
  Other Investments....................................................................  12
  Risk Factors.........................................................................  13
Investment Limitations.................................................................  14
  Portfolio Turnover...................................................................  15
How To Purchase Shares.................................................................  15
  How to Purchase By Mail..............................................................  16
  How to Purchase By Wire..............................................................  17
  How to Purchase through an Automatic Investment Plan ("AIP").........................  17
  How to Purchase Through Financial Institutions.......................................  17
  Sales Charges........................................................................  18
  Letter of Intent.....................................................................  19
  Rights of Accumulation...............................................................  19
  Sales Charge Waivers.................................................................  19
  Reductions for Qualified Groups......................................................  21
Exchange Privileges....................................................................  21
</TABLE>
 
                                        3
<PAGE>   82
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
Redemption of Shares...................................................................  23
  By Mail..............................................................................  23
  Telephone Transactions...............................................................  23
  Systematic Withdrawal Plan ("SWP")...................................................  24
  Other Information Regarding Redemptions..............................................  24
Dividends..............................................................................  25
Federal Taxation.......................................................................  25
Service Arrangements...................................................................  27
  The Advisor..........................................................................  27
  Administrator........................................................................  28
  The Transfer Agent...................................................................  28
  Shareholder Service Plan.............................................................  28
  Distributor..........................................................................  29
  The Distribution Plan................................................................  29
  Banking Laws.........................................................................  30
  Custodian............................................................................  31
General Information....................................................................  31
  Description of HighMark & Its Shares.................................................  31
  Performance Information..............................................................  32
  Miscellaneous........................................................................  33
Description of Permitted Investments...................................................  33
</TABLE>
 
                                        4
<PAGE>   83
 
                          FIXED INCOME FUNDS FEE TABLE
 
<TABLE>
<CAPTION>
                                                                   INTERMEDIATE-TERM
                                                                       BOND FUND         BOND FUND
                                                                        RETAIL            RETAIL
                                                                        SHARES            SHARES
                                                                   -----------------     ---------
<S>                                                                <C>                   <C>
SHAREHOLDER TRANSACTION EXPENSES(A)
 Maximum Sales Load Imposed on Purchases                                  3.00%             3.00%
  (as a percentage of offering price).............................
 Maximum Sales Load Imposed on Reinvested Dividends                          0%                0%
  (as a percentage of offering price).............................
 Deferred Sales Load (as a percentage of original purchase price             0%                0%
  or redemption proceeds, as applicable)(b).......................
 Redemption Fees (as a percentage of amount redeemed, if                     0%                0%
  applicable)(c)..................................................
 Exchange Fee(a)..................................................       $   0             $   0
ANNUAL OPERATING EXPENSES
 (as a percentage of net assets)
 Management Fees..................................................        0.50%             0.50%
 12b-1 Fees (after voluntary reduction)(d)........................        0.00%             0.00%
 Other Expenses (after voluntary reduction)(e)....................        0.25%             0.25%
                                                                         -----            ---- -
 Total Fund Operating Expenses (after voluntary reduction)(f).....        0.75%             0.75%
                                                                         =====             =====
</TABLE>
 
EXAMPLE: You would pay the following expenses on a $1,000 investment, assuming
(1) 5% annual return and (2) redemption at the end of each time period.
 
<TABLE>
<CAPTION>
                                                                 1 YEAR   3 YEARS   5 YEARS   10 YEARS
                                                                 ------   -------   -------   --------
<S>                                                              <C>      <C>       <C>       <C>
Intermediate-Term Bond Fund
 Retail Shares..................................................  $37      $53       $70       $120
Bond Fund
 Retail Shares..................................................  $37      $53       $70       $120
</TABLE>
 
  The purpose of the tables above is to assist an investor in the Fixed Income
Funds in understanding the various costs and expenses that a Shareholder will
bear directly or indirectly. For a more complete discussion of each Fund's
annual operating expenses, see SERVICE ARRANGEMENTS below. THE FOREGOING EXAMPLE
SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE EXPENSES. ACTUAL
EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN.
 
  Long-term shareholders of Retail Shares may pay more than the economic
equivalent of the maximum front-end sales charges otherwise permitted by rules
of the National Association of Securities Dealers, Inc.
- ---------
(a) Certain entities (including Union Bank of California and its affiliates)
    making investments in the Fixed Income Funds on behalf of their customers
    may charge customers fees for services provided in connection with the
    investment in, redemption of, and exchange of Shares. (See HOW TO PURCHASE
    SHARES, EXCHANGE PRIVILEGES, REDEMPTION OF SHARES, and SERVICE ARRANGEMENTS
    below.)
 
                                        5
<PAGE>   84
 
  (b) A Contingent Deferred Sales Charge of 1.00% will be assessed against the
      proceeds of any redemption request relating to Retail Shares of the Funds
      that were purchased without a sales charge in reliance upon the waiver
      accorded to purchases in the amount of $1 million or more, but only where
      such redemption request is made within one year of the date the Shares
      were purchased.
  (c) A wire redemption charge is deducted from the amount of a wire redemption
      payment made at the request of a Shareholder. (See REDEMPTION OF SHARES
      below.)
  (d) As indicated under SERVICE ARRANGEMENTS--The Distribution Plan below, the
      Distributor may voluntarily reduce the 12b-1 fee. Absent voluntary fee
      waivers, 12b-1 fees would be 0.25% for each Fund. The Distributor reserves
      the right to terminate its waiver at any time in its sole discretion.
  (e) OTHER EXPENSES for the Intermediate-Term Bond Fund are based on that
      Fund's estimated expenses for the current fiscal year. Absent voluntary
      fee waivers, OTHER EXPENSES would be 0.49% for the Retail Shares of the
      Intermediate-Term Bond Fund and 0.51% for the Retail Shares of the Bond
      Fund.
  (f) Absent voluntary fee waivers, TOTAL FUND OPERATING EXPENSES would be:
      1.24% for the Retail Shares of the Intermediate-Term Bond Fund, and 1.26%
      for the Retail Shares of the Bond Fund.
 
                                        6
<PAGE>   85
 
                              FINANCIAL HIGHLIGHTS
 
  The table below sets forth certain financial information with respect to the
Retail Shares of the Bond Fund. Information prior to fiscal 1994 is for
Fiduciary Shares only. Financial highlights for the Bond Fund for the period
ended July 31, 1996 have been derived from financial statements audited by
Deloitte & Touche LLP, independent auditors for HighMark, whose report thereon
is included in the Statement of Additional Information. Prior to the fiscal year
ended July 31, 1996, Coopers & Lybrand L.L.P. served as independent auditors for
HighMark. Financial highlights for the Bond Fund for the years ended December
31, 1987, 1986 and 1985 have been derived from financial statements examined by
other auditors whose report thereon is on file with the Securities and Exchange
Commission. Financial highlights for the Bond Fund for the period from January
1, 1988 through June 22, 1988 are derived from unaudited financial statements
prepared by HighMark. The Intermediate-Term Bond Fund had not commenced
operations in HighMark as of July 31, 1996.
 
  The Bond Fund offered a single class of shares (now designated Fiduciary
Shares) throughout the periods shown.
 
                                        7
<PAGE>   86
 
                                   BOND FUND
 
<TABLE>
<CAPTION>
                                                                                                                        JUNE 23,
                         YEAR ENDED       JUNE 20,                                                                        1988
                          JULY 31,          1994                               YEAR ENDED JULY 31,                         TO
                       ---------------   TO JULY 31,        ---------------------------------------------------------    JULY 31,
                        1996     1995    1994(A)(B)           1993        1992        1991        1990        1989       1988(F)
                       ------   ------   -----------        ---------   ---------   ---------   ---------   ---------   ---------
                                                                                                                        
                       RETAIL   RETAIL     RETAIL           FIDUCIARY   FIDUCIARY   FIDUCIARY   FIDUCIARY   FIDUCIARY   FIDUCIARY
                       ------   ------   ----------         ---------   ---------   ---------   ---------   ---------   ---------
                                                                                                                        
                       
                       
<S>                    <C>      <C>      <C>                <C>         <C>         <C>         <C>        <C>         <C>
Net Asset Value,
  Beginning of
    Period............ $10.29   $10.04    $  10.12           $ 11.02     $ 10.29     $ 10.18     $ 10.42    $  9.86     $ 10.00
                       ------   ------      ------           -------     -------     -------      ------     ------      ------
Investment Activities
  Net investment
    income............   0.69     0.66        0.07              0.70        0.67        0.78        0.79       0.82        0.09
  Net realized and
    unrealized gains
    (losses) on
    investments.......  (0.18)    0.23       (0.05)             0.35        0.77        0.04       (0.25)      0.56       (0.14)
                       ------   ------      ------           -------     -------     -------      ------     ------      ------
    Total from
      Investment
      Activities......   0.51     0.89        0.02              1.05        1.44        0.82        0.54       1.38       (0.05)
                       ------   ------      ------           -------     -------     -------      ------     ------      ------
Distributions
  Net investment
    income............  (0.65)   (0.64)      (0.10)            (0.70)      (0.67)      (0.71)      (0.78)     (0.82)      (0.09)
  Net realized
    gains.............     --       --          --             (0.24)      (0.04)         --          --         --          --
                       ------   ------      ------           -------     -------     -------      ------     ------      ------
    Total
      Distributions...  (0.65)   (0.64)      (0.10)            (0.94)      (0.71)      (0.71)      (0.78)     (0.82)      (0.09)
                       ------   ------      ------           -------     -------     -------      ------     ------      ------
Net Asset Value, End
  of Period........... $10.15   $10.29    $  10.04           $ 11.13     $ 11.02     $ 10.29     $ 10.18    $ 10.42     $  9.86
                       ======   ======      ======           =======     =======     =======      ======     ======      ======
Total Return..........   4.95%    9.29%      (3.81)%(c)(e)     10.07%      14.43%       8.99%       5.52%     14.79%      (0.96)%(e)
Ratios/Supplementary
  Data:
Net Assets at end of
  period (000)........ $1,157   $  558    $      7           $33,279     $21,651     $10,799     $ 6,974    $ 4,655     $ 3,487
Ratio of expenses to
  average net
  assets..............   0.89%    0.92%       0.99%(d)          0.93%       0.91%       0.79%       1.01%      1.18%       1.04%(d)
Ratio of net
  investment income to
  average net
  assets..............   6.10%    6.29%       5.77%(d)          6.41%       6.23%       7.61%       7.77%      8.24%       8.63%(d)
Ratio of expenses to
  average net
  assets*.............   1.85%    1.89%       2.96%(d)          1.55%       1.55%       1.59%       1.94%      2.11%       2.06%(d)
Ratio of net
  investment income to
  average net
  assets*.............   5.14%    5.32%       3.80%(d)          5.79%       5.59%       6.81%       6.84%      7.31%       7.61%(d)
Portfolio turnover....  20.65%   36.20%      44.33%            58.81%      79.56%      65.81%      53.50%     24.83%       0.00%
</TABLE>
 
- ---------------
(a) Period from commencement of operations.
(b) On June 20, 1994, the Bond Fund commenced offering Investor Shares (now
    called "Retail Shares") and designated existing shares as Fiduciary Shares.
(c) Represents total return for the Fiduciary Shares for the period from August
    1, 1993 to June 19, 1994 plus the total return for the Investor Shares for
    the period from June 20, 1994 to July 31, 1994.
(d) Annualized.
(e) Not annualized.
(f) The Bond Fund commenced operations on June 23, 1988 as a result of the
    reorganization involving the Bond Portfolio of the IRA Collective
    Investment Fund described under GENERAL INFORMATION-- Reorganization of The
    IRA Fund & HighMark.
 *  During the period the investment advisory and administration fees were
    voluntarily reduced. If such voluntary fee reductions had not occurred, the
    ratios would have been as indicated.
 
                                        8
<PAGE>   87
 
                      PER SHARE INCOME AND CAPITAL CHANGES
                (FOR A SHARE OUTSTANDING THROUGHOUT THE PERIODS)
 
               THE IRA COLLECTIVE INVESTMENT FUND BOND PORTFOLIO
 
<TABLE>
<CAPTION>
                                                         JANUARY 1,
                                                        1988 THROUGH     YEAR ENDED     YEAR ENDED
                                                        JUNE 22, 1988   DECEMBER 31,   DECEMBER 31,
                                                         (UNAUDITED)        1987           1986
                                                        -------------   ------------   ------------
<S>                                                     <C>             <C>            <C>
Investment income......................................   $   0.503       $  1.061       $  1.129
Operating expenses.....................................       0.065          0.128(b)       0.119(b)
                                                            -------        -------        -------
Net investment income..................................       0.438          0.933          1.010
Dividends from net investment income...................      (0.438)        (0.933)        (1.010)
Net realized and unrealized gain (loss) on
  investments..........................................      (0.050)        (0.966)         0.947
                                                            -------        -------        -------
Increase (decrease) in net asset value.................      (0.050)        (0.966)         0.947
Net Asset Value:
  Beginning of period..................................      11.281         12.247         11.300
                                                            -------        -------        -------
  End of period........................................   $  11.231       $ 11.281       $ 12.247
                                                            =======        =======        =======
Ratio of expenses to average net assets(a)(b)..........        1.20%          1.09%          0.92%
Ratio of net investment income to average net
  assets(a)............................................        8.03%          7.93%          7.83%
Portfolio turnover.....................................        0.00%          0.00%          1.61%
Number of Shares/units outstanding at end of period....     317,633        344,456        206,664
</TABLE>
 
- ---------
(a) Annualized based on the period for which assets were held.
 
(b) The expenses shown are not representative of expenses actually incurred by
    the Bond Portfolio through May 31, 1987. During mid-May 1985, The Bank of
    California, N.A., investment adviser to the Bond Portfolio, commenced
    charging its management fee, and commencing June 1, 1987, operating
    expenses were charged to the Bond Portfolio. Had the maximum allowable
    operating expenses and management fees been paid by the Bond Portfolio for
    the entire period pursuant to the Management Agreement between the Bond
    Portfolio and The Bank of California, N.A., the per unit expenses and net
    investment income would have been as follows:
 
<TABLE>
<CAPTION>
                                                     JANUARY 1,
                                                    1988 THROUGH       YEAR ENDED       YEAR ENDED
                                                    JUNE 22, 1988     DECEMBER 31,     DECEMBER 31,
                                                     (UNAUDITED)          1987             1986
                                                    -------------     ------------     ------------
    <S>                                             <C>               <C>              <C>
    Expenses.......................................    $ 0.240          $  0.226         $  0.231
    Net investment income..........................      0.263             0.793            0.779
    Net asset value, end of year...................     11.231            11.281           12.247
    Expenses as a percentage of average net
      asset........................................       2.00%(a)          2.00%            2.00%
</TABLE>
 
                                        9
<PAGE>   88
 
FUND
DESCRIPTION             HighMark Funds ("HighMark") is an open-end, diversified,
                      registered investment company that currently offers units
                      of beneficial interest ("Shares") in sixteen separate
                      investment portfolios ("Funds"). All of the Funds are
                      advised by Pacific Alliance Capital Management (the
                      "Adviser"), a division of Union Bank of California, N.A.
                      Shareholders may purchase Shares of selected Funds through
                      two separate classes (the "Retail" and "Fiduciary"
                      classes). These classes may have different sales charges
                      and other expenses, which may affect performance.
                      Information regarding HighMark's other Funds and other
                      classes is contained in separate prospectuses that may be
                      obtained from HighMark's Distributor, SEI Financial
                      Services Company, at Oaks, Pennsylvania, 19456, or by
                      calling 1-800-433-6884.
 
                        For information concerning those investors who qualify
                      to purchase Retail Shares, sales charges and the operation
                      of HighMark's Distribution Plan, see HOW TO PURCHASE
                      SHARES AND SERVICE ARRANGEMENTS below. (Retail Shares may
                      be hereinafter referred to as "Shares.")
 
INVESTMENT              The investment objectives of the Funds are as follows:
OBJECTIVES            
                        The Intermediate-Term Bond Fund seeks total return
                      through investments in fixed-income securities.
 
                        The Bond Fund seeks current income through investments
                      in long-term, fixed-income securities.
 
                        The investment objectives and certain of the investment
                      limitations of the Intermediate-Term Bond Fund and the
                      Bond Fund may not be changed without a vote of the holders
                      of a majority of the outstanding Shares of the respective
                      Fund (as defined under GENERAL INFORMATION--Miscellaneous
                      below). There can be no assurance that a Fund will achieve
                      its investment objective.
 
INVESTMENT            Intermediate-Term Bond Fund
POLICIES              
                        Under normal market conditions, at least 65% of the
                      Intermediate-Term Bond Fund's assets will be invested in
                      bonds. For purposes of this policy "bonds" include (i)
                      corporate bonds and debentures rated at the time of
                      purchase as "investment grade" (one of the four highest
                      bond rating categories by a nationally recognized
                      statistical rating organization ("NRSRO") i.e., AAA, AA,
                      A, or BBB by Standard & Poor's Corporation ("S&P") or Aaa,
                      Aa, A, or Baa by Moody's Investors Service ("Moody's")) or
                      determined by the Advisor to be of comparable quality;
                      (ii) Yankee Bonds and Eurodollar instruments; (iii) notes
                      or bonds issued by the U.S. Government and its agencies
                      and instrumentalities (such as Government National
                      Mortgage Association ("GNMA") securities); (iv)
                      mortgage-backed securities, including privately issued
                      mortgage-backed securities and readily-marketable
                      asset-backed securities, which must be rated at
 
                                       10
<PAGE>   89
 
                      the time of purchase as investment grade, or be determined
                      by the Advisor to be of comparable quality; (v) securities
                      issued or guaranteed by foreign governments, their
                      political subdivisions, agencies or instrumentalities;
                      (vi) obligations of supranational entities such as the
                      World Bank and the Asian Development Bank; and (vii) zero
                      coupon obligations. The remainder of the Fund's assets may
                      be invested in money market instruments.
 
                        The dollar-weighted average portfolio maturity of the
                      Intermediate-Term Bond Fund will be from three to ten
                      years.
 
                      Bond Fund
 
                        The Bond Fund invests in fixed-income securities with
                      maturities in excess of one year, except for amounts held
                      in money market instruments. Fixed-income securities can
                      have maturities of up to thirty years or more. Under
                      normal market conditions, the Bond Fund will invest at
                      least 65% of the value of its total assets in bonds and
                      may invest up to 35% of its total assets in money market
                      instruments.
 
                        For purposes of this policy "bonds" include (i)
                      corporate bonds and debentures rated at the time of
                      purchase as investment grade or determined by the Advisor
                      to be of comparable quality; (ii) Yankee Bonds and
                      Eurodollar instruments; (iii) notes or bonds issued by the
                      U.S. Government and its agencies and instrumentalities
                      (such as GNMA securities); (iv) mortgage-backed
                      securities, including privately issued mortgage-backed
                      securities and readily-marketable asset backed securities,
                      which must be rated at the time of purchase as investment
                      grade, or be determined by the Advisor to be of comparable
                      quality; (v) securities issued or guaranteed by foreign
                      governments, their political subdivisions, agencies or
                      instrumentalities; (vi) obligations of supranational
                      entities such as the World Bank and the Asian Development
                      Bank; and (vii) zero coupon obligations. In the event that
                      a security owned by the Fund is downgraded below the
                      stated rating categories, the Advisor will take
                      appropriate action with regard to that security. The
                      remainder of the Fund's assets may be invested in money
                      market instruments.
 
                        The dollar-weighted average portfolio maturity of the
                      Bond Fund will be from five to twenty years.
 
GENERAL                 In the event that a security owned by the Fund is
                      downgraded below the stated rating categories, the Advisor
                      will take appropriate action with regard to that security.
 
                      Money Market Instruments
 
                        Under normal market conditions, each Fixed Income Fund
                      may invest up to 35% of its total assets in money market
                      instruments. When market conditions
 
                                       11
<PAGE>   90
 
                      indicate a temporary "defensive" investment strategy as
                      determined by the Advisor, a Fund may invest more than 35%
                      of its total assets in money market instruments. A Fund
                      will not be pursuing its investment objective to the
                      extent that a substantial portion of its assets are
                      invested in money market instruments.
 
                      Illiquid and Restricted Securities
 
                        Each Fund shall limit investment in illiquid securities
                      to 15% or less of its net assets. Generally, an "illiquid
                      security" is any security that cannot be disposed of
                      promptly and in the ordinary course of business at
                      approximately the amount at which the Fund has valued the
                      instrument. The absence of a trading market can make it
                      difficult to ascertain the market value of illiquid
                      securities. The Fund may purchase restricted securities
                      which have not been registered under the Securities Act of
                      1933 (e.g., Rule 144A Securities and Section 4(2)
                      commercial paper) subject to policies approved by the
                      Board of Trustees. See INVESTMENT RESTRICTIONS in the
                      Statement of Additional Information.
 
                      Lending of Portfolio Securities
 
                        In order to generate additional income, a Fund may lend
                      its portfolio securities to broker-dealers, banks or other
                      institutions. A Fund may lend portfolio securities in an
                      amount representing up to 33 1/3% of the value of the
                      Fund's total assets.
 
                      Other Investments
 
                        The Funds may enter into repurchase agreements and
                      reverse repurchase agreements.
 
                        The Fixed Income Funds may enter into forward
                      commitments or purchase securities on a "when-issued"
                      basis. Each Fixed Income Fund expects that commitments by
                      a Fund to enter into forward commitments or purchase when-
                      issued securities will not exceed 25% of the value of the
                      Fund's total assets under normal market conditions. The
                      Fixed Income Funds do not intend to purchase when-issued
                      securities or enter into forward commitments for
                      speculative or leveraging purposes but only for the
                      purpose of acquiring portfolio securities.
 
                        A Fund may invest up to 5% of its total assets in the
                      securities of any one registered investment company, but
                      may not own than 3% of the securities of any one
                      registered investment company or invest more than 10% of
                      its assets in the securities of other registered
                      investment companies. In accordance with an exemptive
                      order issued to HighMark by the SEC, such other registered
                      investment company securities may include securities of a
                      money market fund of HighMark, and such companies may
                      include companies for which the Advisor or a Sub-Advisor
                      to a Fund of HighMark, or an affiliate of such Advisor or
                      Sub-Advisor serves as investment advisor, administrator or
                      distributor. Because other registered investment companies
                      employ an investment advisor, such investment
 
                                       12
<PAGE>   91
 
                      by a Fund may cause Shareholders to bear duplicative fees.
                      The Advisor will waive its fees attributable to the assets
                      of the investing Fund invested in a money market fund of
                      HighMark, and, to the extent required by applicable law,
                      the Advisor will waive its fees attributable to the assets
                      of the Fund invested in any investment company. Some Funds
                      are subject to additional restrictions on investment in
                      other investment companies. See "INVESTMENT RESTRICTIONS"
                      in the Statement of Additional Information.
 
                        A Fund may invest in futures and options on futures for
                      the purpose of achieving the Fund's objectives and for
                      adjusting portfolio duration. The Fund may invest in
                      futures and related options based on any type of security
                      or index traded on U.S. or foreign exchanges or over the
                      counter, as long as the underlying security, or securities
                      represented by an index, are permitted investments of the
                      Fund. The Fund may enter into futures contracts and
                      related options only to the extent that obligations under
                      such contracts or transactions represent not more than 10%
                      of the Fund's assets.
 
                        Certain of the obligations in which the Funds may invest
                      may be variable or floating rate instruments, may involve
                      a conditional or unconditional demand feature, and may
                      include variable amount master demand notes.
 
                        For further information, see "DESCRIPTION OF PERMITTED
                      INVESTMENTS."
 
                      Risk Factors
 
                        In addition to credit risk which relates to the ability
                      of an issuer to make payments of principal and interest,
                      all types of bonds are also subject to market risk. Market
                      risk relates to changes in a security's value as a result
                      of interest rate changes generally. An increase in
                      interest rates will generally reduce the value of the
                      investments in the Fixed Income Funds and a decline in
                      interest rates will generally increase the value of those
                      investments. Accordingly, the net asset value of the
                      Fund's shares will vary as a result of changes in the
                      value of the securities in a Fund's portfolio. Therefore,
                      an investment in the Funds may decline in value, resulting
                      in a loss of principal. Because interest rates vary, it is
                      impossible to predict the income or yield of the Fund for
                      any particular period.
 
                        Depending upon prevailing market conditions, the Fixed
                      Income Funds may purchase debt securities at a discount
                      from face value, which produces a yield greater than the
                      coupon rate. Conversely, if debt securities are purchased
                      at premium over face value, the yield will be lower than
                      the coupon rate. In making investment decisions, the
                      Advisor will consider many factors other than current
                      yield, including the preservation of capital, the
                      potential for realizing capital appreciation, maturity,
                      and yield to maturity.
 
                                       13
<PAGE>   92
 
                        Securities rated BBB by S&P or Baa by Moody's are
                      considered investment grade, but are deemed by these
                      rating services to have some speculative characteristics,
                      and adverse economic conditions or other circumstances are
                      more likely to lead to a weakened capacity to make
                      principal and interest payments than is the case with
                      higher grade bonds.
 
                        Each of the Fixed Income Funds may invest in securities
                      issued or guaranteed by foreign corporations or foreign
                      governments, their political subdivisions, agencies or
                      instrumentalities and obligations of supranational
                      entities such as the World Bank and the Asian Development
                      Bank. Any investments in these securities will be in
                      accordance with a Fund's investment objective and
                      policies, and are subject to special risks, such as
                      adverse political and economic developments, possible
                      seizure, nationalization or expropriation of foreign
                      investments, less stringent disclosure requirements,
                      changes in foreign currency exchange rates, increased
                      costs associated with the conversion of foreign currency
                      into U.S. dollars, the possible establishment of exchange
                      controls or taxation at the source or the adoption of
                      other foreign governmental restrictions. To the extent
                      that a Fund may invest in securities of foreign issuers
                      that are not traded on any exchange, there is a further
                      risk that these securities may not be readily marketable.
                      The Fixed Income Funds will not hold foreign currency for
                      investment purposes.
 
                        For further information regarding risks of particular
                      permitted investments, see "DESCRIPTION OF PERMITTED
                      INVESTMENTS."
 
INVESTMENT              Each Fund may not:
LIMITATIONS             
 
                        (1) Purchase securities of any one issuer, other than
                      obligations issued or guaranteed by the U.S. Government,
                      its agencies, or instrumentalities, if, immediately after
                      the purchase, more than 5% of the value of such Fund's
                      total assets would be invested in the issuer or the Fund
                      would hold more than 10% of any class of securities of the
                      issuer or more than 10% of the issuer's outstanding voting
                      securities (except that up to 25% of the value of the
                      Fund's total assets may be invested without regard to
                      these limitations);
 
                        (2) Purchase any securities that would cause more than
                      25% of such Fund's total assets at the time of purchase to
                      be invested in securities of one or more issuers
                      conducting their principal business activities in the same
                      industry, provided that (a) there is no limitation with
                      respect to obligations issued or guaranteed by the U.S. or
                      foreign governments or their agencies or instrumentalities
                      and repurchase agreements secured by obligations of the
                      U.S. Government or its agencies or instrumentalities; (b)
                      wholly owned finance companies will be considered to be in
                      the industries of their parents if their activities are
                      primarily related to financing the activities of their
                      parents; and (c) utilities will be divided
 
                                       14
<PAGE>   93
 
                      according to their services (for example, gas, gas
                      transmission, electric and gas, electric, and telephone
                      will each be considered a separate industry); and
 
                        (3) Make loans, except that a Fund may purchase or hold
                      debt instruments, lend portfolio securities, and enter
                      into repurchase agreements as permitted by its investment
                      objective and policies.
 
                        The foregoing percentages will apply at the time of the
                      purchase of a security. The investment limitations listed
                      above are fundamental policies and may not be changed
                      without a vote of a majority of the outstanding Shares of
                      the respective Fund. Additional fundamental and
                      non-fundamental investment limitations are set forth in
                      the Statement of Additional Information.
 
                      Portfolio Turnover
 
                        A Fund will not purchase securities solely for the
                      purpose of short-term trading nor will the Fund's
                      portfolio turnover rate be a factor preventing a sale or
                      purchase when the Advisor believes investment
                      considerations warrant. Each of the Fixed Income Fund's
                      portfolio turnover rate may vary greatly from year to year
                      as well as within a particular year. High portfolio
                      turnover rates generally will result in correspondingly
                      higher brokerage and other transactions costs to the Fixed
                      Income Funds and could involve the realization of capital
                      gains that would be taxable when distributed to
                      shareholders of the relevant Fixed Income Fund. See
                      FEDERAL TAXATION.
 
HOW TO                  As noted above, each Fund is divided into two classes of
PURCHASE SHARES       Shares, Retail and Fiduciary. Retail Shares may be
                      purchased at net asset value plus a sales charge. For a
                      description of investors who qualify to purchase Fiduciary
                      Shares, see the Fiduciary Shares prospectus of the Fixed
                      Income Funds. HighMark's Retail Shares are offered to
                      investors who are not fiduciary clients of Union Bank of
                      California, N.A., and who are not otherwise eligible for
                      HighMark's Fiduciary Class.
                      
                        Retail Shares are sold on a continuous basis by
                      HighMark's Distributor, SEI Financial Services Company.
                      The principal office of the Distributor is Oaks,
                      Pennsylvania 19456. If you wish to purchase Shares, you
                      may contact your investment professional or telephone
                      HighMark at 1-800-433-6884.
 
                        The minimum initial investment is generally $1,000 for
                      each Fund and the minimum subsequent investment is
                      generally $100. For present and retired directors,
                      officers, and employees (and their spouses and children
                      under the age of 21) of Union Bank of California, SEI
                      Financial Services Company and their
 
                                       15
<PAGE>   94
 
                      affiliates, the minimum initial investment is $250 and the
                      minimum subsequent investment is $50. A Fund's initial and
                      subsequent minimum purchase amounts may be waived if
                      purchases are made in connection with Individual
                      Retirement Accounts, Keoghs, payroll deduction plans,
                      401(k) or similar programs or accounts. Purchases and
                      redemption of Shares of the Funds may be made on days on
                      which both the New York Stock Exchange and the Federal
                      Reserve wire system are open for business ("Business
                      Days").
 
                        Purchase orders for Shares will be executed at a per
                      Share price equal to the net asset value next determined
                      after the receipt of the purchase order by the Distributor
                      (plus any applicable sales charge). The net asset value
                      per Share of a Fund is determined by dividing the total
                      market value of the Fund's investments and other assets,
                      less any liabilities, by the total number of outstanding
                      Shares of the Fund. Net asset value per Share is
                      determined daily as of 1:00 p.m., Pacific time (4:00 p.m.,
                      Eastern time), on any Business Day. Purchases will be made
                      in full and fractional Shares of HighMark calculated to
                      three decimal places. HighMark reserves the right to
                      reject a purchase order when the Distributor or the
                      Advisor determines that it is not in the best interest of
                      HighMark and/or its Shareholders to accept such order.
 
                        The securities in each Fund will be valued at market
                      value. If market quotations are not available, the
                      securities will be valued by a method that HighMark's
                      Board of Trustees believes accurately reflects fair value.
                      For further information about valuation of investments in
                      the Fixed Income Funds, see the Statement of Additional
                      Information.
 
                        Shares of the Funds are offered only to residents of
                      states in which the Shares are eligible for purchase.
 
                      How to Purchase By Mail
 
                        You may purchase Shares of the Intermediate-Term Bond
                      and Bond Funds by completing and signing an Account
                      Application form and mailing it, along with a check (or
                      other negotiable bank instrument or money order) payable
                      to "HighMark Funds (Fund Name)," to the Transfer agent at
                      P.O. Box 8416, Boston, Massachusetts 02266-8416. All
                      purchases made by check should be in U.S. dollars and made
                      payable to "HighMark Funds (Fund Name)." Third party
                      checks, credit card checks or cash will not be accepted.
                      You may purchase more Shares at any time by mailing
                      payment also to the transfer agent at the above address.
                      Orders placed by mail will be executed on receipt of your
                      payment. If your check does not clear, your purchase will
                      be canceled and you could be liable for any losses or fees
                      incurred.
 
                        You may obtain Account Application Forms for the
                      Intermediate-Term Bond and Bond Funds by calling the
                      Distributor at 1-800-433-6884.
 
                                       16
<PAGE>   95
 
                      How to Purchase By Wire
 
                        You may purchase Shares of the Intermediate-Term Bond
                      and Bond Funds by wiring Federal funds, provided that your
                      Account Application has been previously received. You must
                      wire funds to the transfer agent and the wire instructions
                      must include your account number. You must call the
                      transfer agent at 1-800-433-6884 before wiring any funds.
                      An order to purchase Shares by Federal funds wire will be
                      deemed to have been received by a Fund on the Business Day
                      of the wire; provided that the Shareholder wires funds to
                      the transfer agent prior to 1:00 p.m., Pacific time (4:00
                      p.m., Eastern time). If the transfer agent does not
                      receive the wire by 1:00 p.m., Pacific time (4:00 p.m.,
                      Eastern time), the order will be executed on the next
                      Business Day.
 
                      How to Purchase through an Automatic Investment Plan
                      ("AIP")
 
                        You may arrange for periodic additional investments in
                      the Intermediate-Term Bond and Bond Funds through
                      automatic deductions by Automated Clearing House ("ACH")
                      from a checking account by completing this section in the
                      Account Application form. The minimum pre-authorized
                      investment amount is $100 per month. The AIP is available
                      only for additional investments to an existing account.
 
                      How to Purchase Through Financial Institutions
 
                        Shares of the Funds may be purchased through financial
                      institutions, including the Advisor, that provide
                      distribution assistance or Shareholder services. Shares
                      purchased by persons ("Customers") through financial
                      institutions may be held of record by the financial
                      institution. Financial institutions may impose an earlier
                      cut-off time for receipt of purchase orders directed
                      through them to allow for processing and transmittal of
                      these orders to the transfer agent for effectiveness the
                      same day. Customers should contact their financial
                      institution for information as to that institution's
                      procedures for transmitting purchase, exchange or
                      redemption orders to HighMark.
 
                        Customers who desire to transfer the registration of
                      Shares beneficially owned by them but held of record by a
                      financial institution should contact the institution to
                      accomplish such change.
 
                        Depending upon the terms of a particular Customer
                      account, a financial institution may charge a Customer
                      account fees. Information concerning these services and
                      any charges will be provided to the Customer by the
                      financial institution.
 
                                       17
<PAGE>   96
 
                      Sales Charges
 
                        The following table shows the regular sales charge on
                      Retail Shares to a "single purchaser" (defined below)
                      together with the dealer discount paid to dealers and the
                      agency commission paid to brokers (collectively the
                      "commission"):
 
<TABLE>
<CAPTION>
                                                                         SALES CHARGE AS    
                                                      SALES CHARGE AS      APPROPRIATE      COMMISSION AS
                                                      A PERCENTAGE OF   PERCENTAGE OF NET   PERCENTAGE OF
                             AMOUNT OF PURCHASE       OFFERING PRICE     AMOUNT INVESTED    OFFERING PRICE
                        ----------------------------- ---------------   -----------------   --------------
                        <S>                           <C>               <C>                 <C>
                        0-$24,999....................      3.00%              3.09%             2.70%
                        $25,000-$49,000..............      2.50%              2.56%             2.25%
                        $50,000-$99,000..............      2.00%              2.04%             1.80%
                        $100,000-$249,999............      1.50%              1.52%             1.35%
                        $250,000-$999,999............      1.00%              1.01%             0.90%
                        $1,000,000 and Over..........      0.00%*             0.00%             0.00%
                        ---------
                        * A contingent deferred sales charge of 1.00% will be assessed against any
                          proceeds of any redemption of such Retail Shares prior to one year from date of
                          purchase.
</TABLE>
 
                        The commissions shown in the table apply to sales
                      through authorized dealers and brokers. Under certain
                      circumstances, the Distributor may use its own funds to
                      compensate financial institutions and intermediaries in
                      amounts that are additional to the commissions shown
                      above. In addition, the Distributor may, from time to time
                      and at its own expense, provide promotional incentives in
                      the form of cash or other compensation to certain
                      financial institutions and intermediaries whose registered
                      representatives have sold or are expected to sell
                      significant amounts of the Retail Shares of a Fund. Such
                      other compensation may take the form of payments for
                      travel expenses, including lodging, incurred in connection
                      with trips taken by qualifying registered representatives
                      to places within or without the United States. Under
                      certain circumstances, commissions up to the amount of the
                      entire sales charge may be reallowed to dealers or
                      brokers, who might then be deemed to be "underwriters"
                      under the Securities Act of 1933. Commission rates may
                      vary among the Funds.
 
                        In calculating the sales charge rates applicable to
                      current purchases of a Fund's Shares, a "single purchaser"
                      is entitled to cumulate current purchases with the net
                      purchase of previously purchased Shares of a Fund and
                      other of HighMark's funds (the "Eligible Funds") which are
                      sold subject to a comparable sales charge.
 
                        The term "single purchaser" refers to (i) an individual,
                      (ii) an individual and spouse purchasing Shares of a Fund
                      for their own account or for trust or custodial accounts
                      for their minor children, or (iii) a fiduciary purchasing
                      for any one trust,
 
                                       18
<PAGE>   97
 
                      estate or fiduciary account including employee benefit
                      plans created under Sections 401, 403(b) or 457 of the
                      Internal Revenue Code of 1986, as amended (the "Code"),
                      including related plans of the same employer. To be
                      entitled to a reduced sales charge based upon Shares
                      already owned, the investor must ask the Distributor for
                      such entitlement at the time of purchase and provide the
                      account number(s) of the investor, the investor and
                      spouse, and their minor children, and give the age of such
                      children. A Fund may amend or terminate this right of
                      accumulation at any time as to subsequent purchases.
 
                      Letter of Intent
 
                        By initially investing at least $1,000 and submitting a
                      Letter of Intent (the "Letter") to the Distributor, a
                      "single purchaser" may purchase Shares of a Fund and the
                      other Eligible Funds during a 13-month period at the
                      reduced sales charge rates applicable to the aggregate
                      amount of the intended purchases stated in the Letter. The
                      Letter may apply to purchases made up to 90 days before
                      the date of the Letter. To receive credit for such prior
                      purchases and later purchases benefitting from the Letter,
                      the Shareholder must notify the transfer agent at the time
                      the Letter is submitted that there are prior purchases
                      that may apply, and, at the time of later purchases,
                      notify the transfer agent that such purchases are
                      applicable under the Letter.
 
                      Rights of Accumulation
 
                        In calculating the sales charge rates applicable to
                      current purchases of Retail Shares, a "single purchaser"
                      is entitled to cumulate current purchases with the current
                      market value of previously purchased Retail Shares of the
                      Funds sold subject to a comparable sales charge.
 
                        To exercise your right of accumulation based upon Shares
                      you already own, you must ask the Distributor for this
                      reduced sales charge at the time of your additional
                      purchase and provide the account number(s) of the
                      investor, as applicable, the investor and spouse, and
                      their minor children. The Funds may amend or terminate
                      this right of accumulation at any time as to subsequent
                      purchases.
 
                      Sales Charge Waivers
 
                        The following categories of investors may purchase
                      Retail Shares of the Funds with no sales charge in the
                      manner described below (which may be changed or eliminated
                      at any time by the Distributor):
 
                         (1) Existing holders of Retail Shares of a Fund upon
                      the reinvestment of dividend and capital gain
                      distributions on those Shares;
 
                                       19
<PAGE>   98
 
                         (2) Investment companies advised by Pacific Alliance
                      Capital Management or distributed by SEI Financial
                      Services Company or its affiliates placing orders on each
                      entity's behalf;
 
                         (3) State and local governments;
 
                         (4) Individuals who have received distributions from
                      employee benefit trust accounts administered by Union Bank
                      of California who are rolling over such distributions into
                      an individual retirement account for which the Bank serves
                      as trustee or custodian;
 
                         (5) Individuals who purchase Shares with proceeds from
                      a required minimum distribution at age 70 1/2 from their
                      employee benefit qualified plan or an individual
                      retirement account administered by Union Bank of
                      California;
 
                         (6) Individuals who purchase Shares with proceeds
                      received in connection with a distribution paid from a
                      Union Bank of California trust or agency account;
 
                         (7) Investment advisors or financial planners regulated
                      by a federal or state governmental authority who are
                      purchasing Shares for their own account or for an account
                      for which they are authorized to make investment decisions
                      (i.e., a discretionary account) and who charge a
                      management, consulting or other fee for their services;
                      and clients of such investment advisors or financial
                      planners who place trades for their own accounts if the
                      accounts are linked to the master account of such
                      investment advisor or financial planner on the books and
                      records of a broker or agent;
 
                         (8) Investors purchasing Shares with proceeds from a
                      redemption of Shares of another open-end investment
                      company (other than The HighMark Funds) on which a sales
                      charge was paid if such redemption occurred within thirty
                      (30) days prior to the date of the purchase order.
                      Satisfactory evidence of the purchaser's eligibility must
                      be provided at the time of purchase (e.g., a confirmation
                      of the redemption);
 
                         (9) Brokers, dealers and agents who are purchasing for
                      their own account and who have a sales agreement with the
                      Distributor, and their employees (and their spouses and
                      children under the age of 21);
 
                        (10) Investors purchasing Shares on behalf of a
                      qualified prototype retirement plan (other than an IRA,
                      SEP-IRA or Keogh) sponsored by Union Bank of California;
 
                        (11) Purchasers of Retail Shares of the Growth Fund that
                      are sponsors of other investment companies that are unit
                      investment trusts for deposit by such
 
                                       20
<PAGE>   99
 
                      sponsors into such unit investment trusts, and to
                      purchasers of Retail Shares of the Growth Fund that are
                      holders of such unit investment trusts that invest
                      distributions from such investment trusts in Retail Shares
                      of the Growth Fund;
 
                        (12) Present and retired directors, officers and
                      employees (and their spouses and children under the age of
                      21) of Union Bank of California, SEI Financial Services
                      Company or their affiliated companies; and
 
                        (13) Investors receiving Shares issued in plans of
                      reorganization, such as mergers, asset acquisitions, and
                      exchange offers, to which HighMark is a party.
 
                        With regard to categories 2 through 12 above, the
                      Distributor must be notified that the purchase qualifies
                      for a sales charge waiver at the time of purchase.
 
                      Reductions for Qualified Groups
 
                        Reductions in sales charges also apply to purchases by
                      individual members of a "qualified group." The reductions
                      are based on the aggregate dollar amount of Shares
                      purchased by all members of the qualified group. For
                      purposes of this paragraph, a qualified group consists of
                      a "company," as defined in the 1940 Act, which has been in
                      existence for more than six months and which has a primary
                      purpose other than acquiring Shares of a Fund at a reduced
                      sales charge, and the "related parties" of such company.
                      For purposes of this paragraph, a "related party" of a
                      company is (i) any individual or other company who
                      directly or indirectly owns, controls or has the power to
                      vote five percent or more of the outstanding voting
                      securities of such company; (ii) any other company of
                      which such company directly or indirectly owns, controls
                      or has the power to vote five percent or more of its
                      outstanding voting securities; (iii) any other company
                      under common control with such company; (iv) any executive
                      officer, director or partner of such company or of a
                      related party; and (v) any partnership of which such
                      company is a partner. Investors seeking to rely on their
                      membership in a qualified group to purchase Shares at a
                      reduced sales load must provide evidence satisfactory to
                      the transfer agent of the existence of a bona fide
                      qualified group and their membership therein.
 
                        All orders from a qualified group will have to be placed
                      through a single source and identified at the time of
                      purchase as originating from the same qualified group,
                      although such orders may be placed into more than one
                      discrete account that identifies HighMark.
 
EXCHANGE                As indicated under GENERAL INFORMATION--Description of
PRIVILEGES            HighMark & Its Shares, certain of HighMark's Funds issues
                      two classes of Shares (Retail Shares and Fiduciary
                      Shares); as of the date of this Prospectus,
 
                                       21
<PAGE>   100
 
                      the Distribution Plan and distribution fee payable
                      thereunder are applicable only to each Fund's Retail
                      Shares. A Shareholder's eligibility to exchange into a
                      particular class of Shares will be determined at the time
                      of the exchange. The Shareholder must supply, at the time
                      of the exchange, the necessary information to permit
                      confirmation of qualification.
 
                        Each Fund's Shares may be exchanged for Shares of the
                      class of the various other Funds of HighMark which the
                      Shareholder qualifies to purchase directly so long as the
                      Shareholder maintains the applicable minimum account
                      balance in each Fund in which he or she owns Shares and
                      satisfies the minimum initial and subsequent purchase
                      amounts of the Fund into which the Shares are exchanged.
                      Shareholders may exchange their Retail Shares for Retail
                      Shares of a Fund with the same or lower sales charge on
                      the basis of the relative net asset value of the Retail
                      Shares exchanged. Shareholders may exchange their Retail
                      Shares for Retail Shares of a Fund with a higher sales
                      charge by paying the difference between the two sales
                      charges. Shareholders may also exchange Retail Shares of a
                      Money Market Fund for which no sales load was paid for
                      Retail Shares of a Fixed Income Fund. Under such
                      circumstances, the cost of the acquired Retail Shares will
                      be the net asset value per share plus the appropriate
                      sales load. If Retail Shares of the Money Market Fund were
                      acquired in a previous exchange involving Shares of a
                      non-money market HighMark Fund, then such Shares of the
                      Money Market Fund may be exchanged for Shares of a Fixed
                      Income Fund without payment of any additional sales load
                      within a twelve month period. In order to receive a
                      reduced sales charge when exchanging into a Fund, the
                      Shareholder must notify HighMark that a sales charge was
                      originally paid and provide sufficient information to
                      permit confirmation of qualification.
 
                        Exchanges will be made on the basis of the relative net
                      asset values of the Shares exchanged plus any applicable
                      sales charge. Exchanges are subject to the terms and
                      conditions stated herein and the terms and conditions
                      stated in the respective prospectuses of the Funds.
 
                        Certain entities (including Participating Organizations
                      and Union Bank of California and its affiliates), however,
                      may charge customers a fee with respect to exchanges made
                      on the customer's behalf. Information about these charges,
                      if any, can be obtained by the entity effecting the
                      exchange and this Prospectus should be read in conjunction
                      with that information.
 
                        A Shareholder wishing to exchange Shares in a Fixed
                      Income Fund may do so by contacting the transfer agent at
                      1-800-433-6884. Exchanges will be effected on any Business
                      Day at the net asset value of the Funds involved in the
                      exchange next determined after the exchange request is
                      received by the transfer agent.
 
                                       22
<PAGE>   101
 
                        An exchange is considered to be a sale of Shares for
                      federal income tax purposes on which a Shareholder may
                      realize a capital gain or loss. Exchange privileges may be
                      exercised only in those states where Shares of such other
                      Funds of HighMark may legally be sold. HighMark may
                      materially amend or terminate the exchange privileges
                      described herein upon sixty days' notice.
 
REDEMPTION              You may redeem your Shares of the Intermediate-Term Bond
OF SHARES             and Bond Funds without charge on any Business Day. There
                      is presently a $15 charge for wiring redemption proceeds
                      to a Shareholder's designated account. Shares may be
                      redeemed by mail, by telephone or through a pre-arranged
                      systematic withdrawal plan. Investors who own Shares held
                      by a financial institution should contact that institution
                      for information on how to redeem Shares.

                      By Mail
 
                        A written request for redemption of Shares of the
                      Intermediate-Term Bond and Bond Funds must be received by
                      the transfer agent, P.O. Box 8416, Boston, Massachusetts
                      02266-8416 in order to constitute a valid redemption
                      request.
 
                        If the redemption request exceeds $5,000, or if the
                      request directs the proceeds to be sent or wired to an
                      address different from that of record, the transfer agent
                      may require that the signature on the written redemption
                      request be guaranteed. You should be able to obtain a
                      signature guarantee from a bank, broker dealer, credit
                      union, securities exchange or association, clearing agency
                      or savings association. Notaries public cannot guarantee
                      signatures. The signature guarantee requirement will be
                      waived if all of the following conditions apply: (1) the
                      redemption is for not more than $5,000 worth of Shares,
                      (2) the redemption check is payable to the shareholder(s)
                      of record, and (3) the redemption check is mailed to the
                      shareholder(s) at his or her address of record.
 
                      Telephone Transactions
 
                        You may redeem your Shares of the Intermediate-Term Bond
                      and Bond Funds by calling the transfer agent at
                      1-800-433-6884. Under most circumstances, payments will be
                      transmitted on the next Business Day following receipt of
                      a valid request for redemption. You may have the proceeds
                      mailed to your address or wired to a commercial bank
                      account previously designated on your Account Application.
                      There is no charge for having redemption proceeds mailed
                      to you, but there is a $15 charge for wiring redemption
                      proceeds.
 
                        You may request a wire redemption for redemptions of
                      Shares of the Intermediate-Term Bond and Bond Funds in
                      excess of $500 by calling the transfer agent at
                      1-800-433-6884 who will deduct a wire charge of $15 from
                      the amount of the wire redemption. Shares cannot be
                      redeemed by Federal Reserve wire on Federal holidays
                      restricting wire transfers.
 
                                       23
<PAGE>   102
 
                        Neither the transfer agent nor HighMark will be
                      responsible for any loss, liability, cost or expense for
                      acting upon wire or telephone instructions that it
                      reasonably believes to be genuine. HighMark and the
                      transfer agent will each employ reasonable procedures to
                      confirm that instructions communicated by telephone are
                      genuine. Such procedures may include taping of telephone
                      conversations.
 
                        If market conditions are extraordinarily active or other
                      extraordinary circumstances exist, and you experience
                      difficulties placing redemption orders by telephone, you
                      may consider placing your order by mail.
 
                      Systematic Withdrawal Plan ("SWP")
 
                        The Intermediate-Term Bond and Bond Funds offer a
                      Systematic Withdrawal Plan ("SWP"), which you may use to
                      receive regular distributions from your account. Upon
                      commencement of the SWP, your account must have a current
                      net asset value of $5,000 or more. You may elect to
                      receive automatic payments via check or ACH of $100 or
                      more on a monthly, quarterly, semi-annual or annual basis.
                      You may arrange to receive regular distributions from your
                      account via check or ACH by completing this section in the
                      Account Application form.
 
                        To participate in the SWP, you must have your dividends
                      automatically reinvested. You should realize that if your
                      automatic withdrawals exceed income dividends, your
                      invested principal in the account will be depleted. Thus,
                      depending on the frequency and amounts of the withdrawal
                      payments and/or any fluctuations in the net asset value
                      per Share, your original investment could be exhausted
                      entirely. You may change or cancel the SWP at any time on
                      written notice to the transfer agent. The transfer agent
                      may require that the signature on the written notice be
                      guaranteed.
 
                        It is generally not in your best interest to be
                      participating in the SWP at the same time that you are
                      purchasing additional Shares if you have to pay a sales
                      load in connection with such purchases.
 
                      Other Information Regarding Redemptions
 
                        Shareholders who desire to redeem Shares of HighMark
                      must place their redemption orders prior to 1:00 p.m.,
                      Pacific time (4:00 p.m., Eastern time), on any Business
                      Day for the order to be accepted on that Business Day. The
                      redemption price is the net asset value of the Fund next
                      determined after receipt by the Distributor of the
                      redemption order. Payment on redemption will be made as
                      promptly as possible and, in any event, within seven
                      calendar days after the redemption order is received. The
                      Funds reserve the right to make payment on redemptions in
                      securities rather than cash.
 
                                       24
<PAGE>   103
 
                        Payment to the Shareholders for Shares redeemed will be
                      made within seven days after the transfer agent receives
                      the valid redemption request. At various times, however, a
                      Fund may be requested to redeem Shares for which it has
                      not yet received good payment; collection of payment may
                      take ten or more days. In such circumstances, the
                      redemption request will be rejected by the Fund. Once a
                      Fund has received good payment for the Shares a
                      Shareholder may submit another request for redemption.
 
                        Due to the relatively high costs of handling small
                      investments, each Fund reserves the right to redeem your
                      Shares at net asset value if your account in any Fund has
                      a value of less than the minimum initial purchase amount.
                      Accordingly, if you purchase Shares of any Fund in only
                      the minimum investment amount, you may be subject to
                      involuntary redemption if you redeem any Shares. Before
                      any Fund exercises its right to redeem such Shares you
                      will be given notice that the value of the Shares in your
                      account is less than the minimum amount and will be
                      allowed 60 days to make an additional investment in such
                      Fund in an amount which will increase the value of the
                      account to at least the minimum amount.
 
DIVIDENDS               The net income of each of the Fixed Income Funds is
                      declared and paid monthly as a dividend to Shareholders of
                      record at the close of business on the day of declaration.
                      Net realized capital gains are distributed at least
                      annually to Shareholders of record.
 
                        Shareholders will automatically receive all income
                      dividends and capital gains distributions in additional
                      full and fractional Shares of a Fund at net asset value as
                      of the date of declaration (which is also the ex-dividend
                      date), unless the Shareholder elects to receive such
                      dividends or distributions in cash. Shareholders wishing
                      to receive their dividends in cash (or wishing to revoke a
                      previously made election) must notify the transfer agent
                      at P.O. Box 8416, Boston, MA 02266-8416, and such election
                      (or revocation thereof) will become effective with respect
                      to dividends and distributions having record dates after
                      notice has been received. Dividends paid in additional
                      Shares receive the same tax treatment as dividends paid in
                      cash.
 
FEDERAL                 Each Fixed Income Fund intends to qualify for treatment
TAXATION              as a "regulated investment company" under the Internal
                      Revenue Code of 1986, as amended (the "Code"), and to
                      distribute substantially all of its net investment income
                      and net realized capital gains so that each Fund is not
                      required to pay federal taxes on these amounts. Because
                      all of the net investment income of the Fixed Income Funds
                      is expected to be derived from interest, it is anticipated
                      that no part of any distribution will be eligible for the
                      federal dividends received deduction.

                        Distributions of ordinary income and/or an excess of net
                      short-term capital gain over net long-term capital loss
                      are treated for federal income tax purposes as
 
                                       25
<PAGE>   104
 
                      ordinary income to Shareholders. Distributions by the Fund
                      of the excess of net long-term capital gain over net
                      short-term capital loss is taxable to Shareholders as
                      long-term capital gain in the year with respect to which
                      it is received, regardless of how long the Shareholder has
                      held Shares of the Fund. Such distributions are not
                      eligible for the dividends received deduction. If a
                      Shareholder disposes of Shares in a Fund at a loss before
                      holding such Shares for longer than six months, such loss
                      will be treated as a long-term capital loss to the extent
                      the Shareholder has received long-term capital gain
                      dividends on the Shares.
 
                        Prior to purchasing Shares of the Fixed Income Funds,
                      the impact of dividends or capital gain distributions that
                      are expected to be declared or have been declared, but not
                      paid, should be carefully considered. Dividends or capital
                      gain distributions received after a purchase of Shares are
                      subject to federal income taxes, although in some
                      circumstances, the dividends or distributions may be, as
                      an economic matter, a return of capital to the
                      Shareholder. A Shareholder should consult his or her
                      advisor for specific advice about the tax consequences to
                      the Shareholder of investing in a Fund.
 
                        Fund investments in foreign securities may be subject to
                      withholding taxes at the source on dividend or interest
                      payments. In that case, the Fund's yield on those
                      securities would be decreased. The Fund does not expect to
                      be eligible to elect to permit shareholders to claim a
                      credit or deduction on their income tax return for their
                      pro rata share of such taxes.
 
                        Fund transactions in foreign currencies and hedging
                      activities may give rise to ordinary income or loss to the
                      extent such income or loss results from fluctuations in
                      value of the foreign currency concerned. In addition, such
                      activities will likely produce a difference between book
                      income and taxable income. This difference may cause a
                      portion of the Fund's income distributions to constitute a
                      return of capital for tax purposes or require the Fund to
                      make distributions exceeding book income to qualify as a
                      regulated investment company for tax purposes.
 
                        Additional information regarding federal taxes is
                      contained in the Statement of Additional Information.
                      However, the foregoing and the material in the Statement
                      of Additional Information are only brief summaries of some
                      of the important tax considerations generally affecting
                      each Fund and its Shareholders. In addition, the foregoing
                      discussion and the federal tax information in the
                      Statement of Additional Information are based on tax laws
                      and regulations which are in effect as of the date of this
                      Prospectus; these laws and regulations may subsequently
                      change, and such changes could be retroactive.
 
                        Shareholders will be advised at least annually as to the
                      federal income tax status of distributions made during the
                      year.
 
                                       26
<PAGE>   105
 
SERVICE               The Advisor
ARRANGEMENTS          
                        Pacific Alliance Capital Management, a division of Union
                      Bank of California, serves as the Fixed Income Funds'
                      investment advisor. Subject to the general supervision of
                      HighMark's Board of Trustees, the Advisor manages each
                      Fund in accordance with its investment objective and
                      policies, makes decisions with respect to and places
                      orders for all purchases and sales of the Fund's
                      investment securities, and maintains the Fund's records
                      relating to such purchases and sales.
 
                        For the expenses assumed and services provided by the
                      Advisor as each Fund's investment advisor, Union Bank of
                      California receives a fee from the Intermediate-Term Bond
                      Fund and the Bond Fund, computed daily and paid monthly,
                      at the annual rate of fifty one-hundredths of one percent
                      (.50%) of the Fund's average daily net assets. Depending
                      on the size of the Fund, this fee may be higher than the
                      advisory fee paid by most mutual funds, although the Board
                      of Trustees believes it will be comparable to advisory
                      fees paid by many funds having similar objectives and
                      policies. Union Bank of California may from time to time
                      agree to voluntarily reduce its advisory fee, however, it
                      is not currently doing so. While there can be no assurance
                      that Union Bank of California will choose to make such an
                      agreement, any voluntary reductions in Union Bank of
                      California's advisory fee will lower the Fund's expenses,
                      and thus increase the Fund's yield and total return,
                      during the period such voluntary reductions are in effect.
                      During HighMark's fiscal year ended July 31, 1996, Union
                      Bank of California received investment advisory fees from
                      the Bond Fund aggregating 0.45% of the Fund's average
                      daily net assets. As of the date of this prospectus, the
                      Intermediate-Term Bond Fund had not yet commenced
                      operations in HighMark.
 
                        On April 1, 1996, The Bank of California, N.A.,
                      HighMark's then investment advisor, combined with Union
                      Bank and the resulting bank changed its name to Union Bank
                      of California, N.A. At the same time, the banks'
                      investment management divisions were combined. Each of
                      Union Bank and The Bank of California, N.A. (or their
                      predecessor banks) has been in banking since the early
                      1900's and, historically, each has had significant
                      investment functions within its trust and investment
                      division. UnionBanCal Corporation, the parent of Union
                      Bank of California, N.A., is a publicly held corporation,
                      but is principally held by The Bank of Tokyo-Mitsubishi,
                      Ltd. As of September 30, 1996, Union Bank of California
                      and its subsidiaries had approximately $28.7 billion in
                      commercial assets. Pacific Alliance Capital Management is
                      a division of Union Bank of California's Trust and
                      Investment Management Group, which, as of June 30, 1996,
                      had approximately $13.4 billion of assets under
                      management. The Advisor, with a team of approximately 45
                      stock and bond research analysts, portfolio managers and
                      traders, has been providing investment management services
                      to individuals, institutions and large corporations since
                      1917.
 
                                       27
<PAGE>   106
 
                        All investment decisions for the Fixed Income Funds are
                      made by a team of investment professionals, all of whom
                      take an active part in the decision making process. The
                      team leader for both the Intermediate-Term Bond Fund and
                      the Bond Fund is E. Jack Montgomery. Mr. Montgomery is a
                      Vice President of the Advisor and has served as the
                      portfolio manager of the Bond Fund since June, 1994. Prior
                      to joining the Advisor, Mr. Montgomery was employed by the
                      San Francisco Employees' Retirement System and, prior to
                      that, First Interstate Bank of Oregon. Mr. Montgomery
                      graduated from the University of Oklahoma in 1971 and
                      earned his M.B.A. from the University of Oregon.
 
                      Administrator
 
                        SEI Fund Resources (the "Administrator") and HighMark
                      are parties to an administration agreement (the
                      "Administration Agreement"). Under the terms of the
                      Administration Agreement, the Administrator provides
                      HighMark with certain management services, including all
                      necessary office space, equipment, personnel, and
                      facilities.
 
                        The Administrator is entitled to a fee, which is
                      calculated daily and paid monthly, at an annual rate of
                      .20% of the average daily net assets of the Funds. The
                      Administrator may waive its fee or reimburse various
                      expenses to the extent necessary to limit the total
                      operating expenses of a Fund's Retail Shares. Any such
                      waiver is voluntary and may be terminated at any time in
                      the Administrator's sole discretion. Currently, the
                      Administrator has agreed to waive its fee to the rate of
                      .18% of the average daily net assets of the Funds.
 
                        Pursuant to a separate agreement with the Administrator,
                      Union Bank of California, N.A. performs sub-administration
                      services on behalf of each Fund, for which it receives a
                      fee paid by the Administrator at the annual rate of up to
                      0.05% of the average daily net assets of the Funds. Union
                      Bank of California has voluntarily agreed to reduce this
                      fee to 0.03%, but reserves the right to terminate its
                      waiver at any time in its sole discretion. A description
                      of the services performed by Union Bank of California
                      pursuant to this Agreement is contained in the Statement
                      of Additional Information.
 
                      The Transfer Agent
 
                        State Street Bank and Trust Company serves as the
                      transfer agent, dividend disbursing agent, and as a
                      shareholder servicing agent for the Retail Shares of
                      HighMark, for which services it receives a fee.
 
                      Shareholder Service Plan
 
                        To support the provision of Shareholder services to both
                      classes of Shares, HighMark has adopted a Shareholder
                      Service Plan. A description of the services performed by
                      service providers pursuant to the Shareholder Service Plan
                      is
 
                                       28
<PAGE>   107
 
                      contained in the Statement of Additional Information. In
                      consideration of services provided by any service
                      provider, which may include Union Bank of California,
                      N.A., Bank of Tokyo-Mitsubishi, Ltd., or their respective
                      affiliates, each Fund may pay a fee at the rate of up to
                      0.25% of its average daily net assets to such service
                      provider. The service provider may waive such fees at any
                      time. Any such waiver is voluntary and may be terminated
                      at any time. Currently, such fees are being waived to the
                      rate of 0.03% of average daily net assets for the
                      Intermediate-Term Bond Fund and 0.01% for the Bond Fund.
 
                      Distributor
 
                        SEI Financial Services Company (the "Distributor") and
                      HighMark are parties to a distribution agreement
                      ("Distribution Agreement"). The Distribution Agreement is
                      renewable annually and may be terminated by the
                      Distributor, by a majority vote of the Disinterested
                      Trustees or by a majority vote of the outstanding
                      securities of HighMark upon not more than 60 days written
                      notice by either party, or upon assignment by the
                      Distributor.
 
                      The Distribution Plan
 
                        Pursuant to HighMark's Distribution Plan, each Fixed
                      Income Fund pays the Distributor as compensation for its
                      services in connection with the Distribution Plan a
                      distribution fee, computed daily and paid monthly, equal
                      to twenty-five one-hundredths of one percent (0.25%) of
                      the average daily net assets attributable to that Fund's
                      Retail Shares. The Distributor has agreed to waive its
                      fees to 0.00% of the average daily net assets for each
                      Fund.
 
                        The Distributor may use the distribution fee applicable
                      to a Fund's Retail Shares to provide distribution
                      assistance with respect to the sale of the Fund's Retail
                      Shares or to provide Shareholder services to the holders
                      of the Fund's Retail Shares. The Distributor may also use
                      the distribution fee (i) to pay financial institutions and
                      intermediaries (such as insurance companies and investment
                      counselors but not including banks and savings and loan
                      associations), broker-dealers, and the Distributor's
                      affiliates and subsidiaries compensation for services or
                      reimbursement of expenses incurred in connection with the
                      distribution of a Fund's Retail Shares to their customers
                      or (ii) to pay banks, savings and loan associations, other
                      financial institutions and intermediaries, broker-dealers,
                      and the Distributor's affiliates and subsidiaries
                      compensation for services or reimbursement of expenses
                      incurred in connection with the provision of Shareholder
                      services to their customers owning a Fund's Retail Shares.
                      All payments by the Distributor for distribution
                      assistance or Shareholder services under the Distribution
                      Plan will be made pursuant to an agreement between the
                      Distributor and such bank, savings and loan association,
                      other financial institution or intermediary,
                      broker-dealer, or affiliate or subsidiary of the
                      Distributor (a
 
                                       29
<PAGE>   108
 
                      "Servicing Agreement"; banks, savings and loan
                      associations, other financial institutions and
                      intermediaries, broker-dealers, and the Distributor's
                      affiliates and subsidiaries that may enter into a
                      Servicing Agreement are hereinafter referred to
                      individually as a "Participating Organization"). A
                      Participating Organization may include Union Bank of
                      California, its subsidiaries and its affiliates.
 
                        Participating Organizations may charge customers fees in
                      connection with investments in a Fixed Income Fund on
                      their customers' behalf. Such fees would be in addition to
                      any amounts the Participating Organization may receive
                      pursuant to its Servicing Agreement. Under the terms of
                      the Servicing Agreements, Participating Organizations are
                      required to provide their customers with a schedule of
                      fees charged directly to such customers in connection with
                      investments in a Fund. Customers of Participating
                      Organizations should read this Prospectus in light of the
                      terms governing their accounts with the Participating
                      Organization.
 
                        The distribution fee under the Distribution Plan will be
                      payable without regard to whether the amount of the fee is
                      more or less than the actual expenses incurred in a
                      particular year by the Distributor in connection with
                      distribution assistance or Shareholder services rendered
                      by the Distributor itself or incurred by the Distributor
                      pursuant to the Servicing Agreements entered into under
                      the Distribution Plan. The Distributor may from time to
                      time voluntarily reduce its distribution fee with respect
                      to a Fixed Income Fund in significant amounts for
                      substantial periods of time pursuant to an agreement with
                      HighMark. While there can be no assurance that the
                      Distributor will choose to make such an agreement, any
                      voluntary reduction in the Distributor's distribution fee
                      will lower such Fixed Income Fund's expenses, and thus
                      increase such Fund's yield and total returns, during the
                      period such voluntary reductions are in effect.
 
                      Banking Laws
 
                        Union Bank of California believes that it may perform
                      the services for the Funds contemplated by its investment
                      advisory agreement with HighMark without a violation of
                      applicable banking laws and regulations. Union Bank of
                      California also believes that it may perform
                      sub-administration and sub-accounting services on behalf
                      of each Fund without a violation of applicable banking
                      laws and regulations. Future changes in federal or state
                      statutes and regulations relating to permissible
                      activities of banks or bank holding companies and their
                      subsidiaries and affiliates, as well as further judicial
                      or administrative decisions or interpretations of present
                      and future statutes and regulations, could change the
                      manner in which Union Bank of California or the Advisor
                      could continue to perform such services for the Funds. For
                      a further discussion of applicable banking laws and
                      regulations, see the Statement of Additional Information.
 
                                       30
<PAGE>   109
 
                      Custodian
 
                        Union Bank of California also serves as the custodian
                      and as a shareholder servicing agent for the Fixed Income
                      Funds. The Custodian holds cash securities and other
                      assets of HighMark as required by the 1940 Act.
 
                        Services performed by Union Bank of California, as the
                      Funds' shareholder servicing agent and custodian, as well
                      as the basis of remuneration for such services, are
                      described in the Statement of Additional Information.
 
GENERAL               Description of HighMark & Its Shares
INFORMATION           
                        HighMark was organized as a Massachusetts business trust
                      on March 10, 1987, and consists of sixteen series of
                      Shares open for investment representing units of
                      beneficial interest in HighMark's Growth Fund, Income
                      Equity Fund, Balanced Fund, Value Momentum Fund, Blue Chip
                      Growth Fund, Emerging Growth Fund, International Equity
                      Fund, Bond Fund, Intermediate-Term Bond Fund, Government
                      Securities Fund, Convertible Securities Fund, California
                      Intermediate Tax-Free Bond Fund, Diversified Money Market
                      Fund, U.S. Government Obligations Money Market Fund, 100%
                      U.S. Treasury Obligations Money Market Fund and California
                      Tax-Free Money Market Fund. As of the date hereof, no
                      Shares of the Value Momentum Fund, the Blue Chip Growth
                      Fund, the Emerging Growth Fund, the International Equity
                      Fund, the Intermediate-Term Bond Fund, the Convertible
                      Securities Fund, the Government Securities Fund, and the
                      California Intermediate Tax-Free Bond Fund, had been
                      offered for sale in HighMark. Shares of each Fund are
                      freely transferable, are entitled to distributions from
                      the assets of the Fund as declared by the Board of
                      Trustees, and, if HighMark were liquidated, would receive
                      the net assets attributable to that Fund. Shares are
                      without par value.
 
                        As noted above, pursuant to a Multiple Class Plan on
                      file with the Securities and Exchange Commission
                      permitting the issuance and sale of two classes of Shares
                      in selected Funds, Shares of such Funds have been divided
                      into two classes, designated Retail Shares and Fiduciary
                      Shares. For information regarding the Fiduciary Shares of
                      the Fixed Income Funds, interested persons may contact the
                      Distributor for a prospectus at 1-800-433-6884.
 
                        HighMark believes that as of November 22, 1996, there
                      was no person who owned of record or beneficially more
                      than 25% of the Retail Shares of the Bond Fund. As of
                      November 22, 1996, the Intermediate-Term Bond Fund had not
                      yet commenced operations in HighMark.
 
                                       31
<PAGE>   110
 
                      Performance Information
 
                        From time to time, HighMark may advertise the aggregate
                      total return, average annual total return, yield and
                      distribution rate with respect to the Retail Shares of
                      each Fixed Income Fund. Performance information is
                      computed separately for a Fund's Retail and Fiduciary
                      Shares in accordance with the formulas described below.
 
                        The aggregate total return and average annual total
                      return of the Fixed Income Funds may be quoted for the
                      life of each Fund and for ten-year, five-year and one-year
                      periods, in each case through the most recent calendar
                      quarter. Aggregate total return is determined by
                      calculating the change in the value of a hypothetical
                      $1,000 investment in a Fund over the applicable period
                      that would equate the initial amount invested to the
                      ending redeemable value of the investment. The ending
                      redeemable value includes dividends and capital gain
                      distributions reinvested at net asset value. Average
                      annual total return is calculated by annualizing a Fund's
                      aggregate total return over the relevant number of years.
                      The resulting percentage indicates the average positive or
                      negative investment results that an investor in a Fund
                      would have experienced on an annual basis from changes in
                      Share price and reinvestment of dividends and capital gain
                      distributions.
 
                        The yield of a Fund is determined by annualizing the net
                      investment income per Share of the Fund during a specified
                      thirty-day period and dividing that amount by the per
                      Share public offering price of the Fund on the last day of
                      the period.
 
                        The distribution rate of a Fund is determined by
                      dividing the income and capital gains distributions, or
                      where indicated the income distributions alone, on a Share
                      of the Fund over a twelve-month period by the per Share
                      public offering price of the Fund on the last day of the
                      period.
 
                        Each Fund may periodically compare its performance to
                      the performance of other mutual funds tracked by mutual
                      fund rating services (such as Lipper Analytical),
                      financial and business publications and periodicals; broad
                      groups of comparable mutual funds; unmanaged indices which
                      may assume investment of dividends but generally do not
                      reflect deductions for administrative and management
                      costs; or other investment alternatives. Certain Funds may
                      advertise performance that includes results from periods
                      in which the Fund's assets were managed in a
                      non-registered predecessor vehicle.
 
                        All performance information presented for a Fund is
                      based on past performance and does not predict future
                      performance.
 
                                       32
<PAGE>   111
 
                      Miscellaneous
 
                        Shareholders will be sent unaudited semi-annual reports
                      and annual reports audited by independent public
                      accountants.
 
                        Shareholders are entitled to one vote for each Share
                      held in a Fund as determined on the record date for any
                      action requiring a vote by the Shareholders, and a
                      proportionate fractional vote for each fractional Share
                      held. Shareholders of HighMark will vote in the aggregate
                      and not by series or class except (i) as otherwise
                      expressly required by law or when HighMark's Board of
                      Trustees determines that the matter to be voted upon
                      affects only the interests of the Shareholders of a
                      particular series or particular class, and (ii) only
                      Retail Shares will be entitled to vote on matters
                      submitted to a Shareholder vote relating to the
                      Distribution Plan. HighMark is not required to hold
                      regular annual meetings of Shareholders, but may hold
                      special meetings from time to time.
 
                        HighMark's Trustees are elected by Shareholders, except
                      that vacancies may be filled by vote of the Board of
                      Trustees. Trustees may be removed by the Board of
                      Trustees, or by Shareholders at a meeting called for such
                      purpose. For information about how Shareholders may call
                      such a meeting and communicate with other Shareholders for
                      that purpose, see ADDITIONAL INFORMATION-- Miscellaneous
                      in the Statement of Additional Information.
 
                        Inquiries may be directed in writing to SEI Financial
                      Services Company, Oaks, Pennsylvania 19456, or by calling
                      toll free 1-800-433-6884.
 
DESCRIPTION OF          The following is a description of permitted investments
PERMITTED             for the HighMark Fixed Income Funds.
INVESTMENTS           
                        ASSET-BACKED SECURITIES (NON-MORTGAGE)--Debt Instruments
                      secured by company receivables, truck and auto loans,
                      leases, and credit card receivables. Such securities are
                      generally issued as pass-through certificates, which
                      represent undivided fractional ownership interests in the
                      underlying pools of assets. Such securities also may be
                      debt instruments, which are also known as collateralized
                      obligations and are generally issued as the debt of a
                      special purpose entity, such as a trust, organized solely
                      for the purpose of owning such assets and issuing such
                      debt. The purchase of non-mortgage asset-backed securities
                      raises risk considerations peculiar to the financing of
                      the instruments underlying such securities. Asset-backed
                      securities entail prepayment risk, which may vary
                      depending on the type of asset, but is generally less than
                      the prepayment risk associated with mortgage-backed
                      securities.
 
                        Like mortgages underlying mortgage-backed securities,
                      underlying automobile sales contracts or credit card
                      receivables are subject to substantial prepayment risk,
                      which may reduce the overall return to certificate
                      holders. Nevertheless,
 
                                       33
<PAGE>   112
 
                      principal prepayment rates tend not to vary as much in
                      response to changes in interest rates and the short-term
                      nature of the underlying car loans or other receivables
                      tend to dampen the impact of any change in the prepayment
                      level. Certificate holders may also experience delays in
                      payment on the certificates if the full amounts due on
                      underlying sales contracts or receivables are not realized
                      by the trust because of unanticipated legal or
                      administrative costs of enforcing the contracts or because
                      of depreciation or damage to the collateral (usually
                      automobiles) securing certain contracts, or other factors.
                      If consistent with their investment objectives and
                      policies, the Fixed Income Funds may invest in other
                      asset-backed securities that may be developed in the
                      future.
 
                        BANKERS' ACCEPTANCES--Bills of exchange or time drafts
                      drawn on and accepted by commercial banks. They are used
                      by corporations to finance the shipment and storage of
                      goods and to furnish dollar exchange. Maturities are
                      generally six months or less.
 
                        CERTIFICATES OF DEPOSIT--Negotiable interest-bearing
                      instruments with a specific maturity. Certificates of
                      deposit are issued by banks and savings and loan
                      institutions in exchange for the deposit of funds and
                      normally can be traded in the secondary market prior to
                      maturity.
 
                        COMMERCIAL PAPER--Unsecured short-term promissory notes
                      issued by corporations and other entities. Maturities on
                      these issues vary from a few days to nine months. Purchase
                      of such instruments involves a risk of default by the
                      issuer.
 
                        CONVERTIBLE BONDS AND CONVERTIBLE PREFERRED STOCK--
                      Convertible Bonds are bonds convertible into a set number
                      of shares of another form of security (usually common
                      stock) at a prestated price. Convertible bonds have
                      characteristics similar to both fixed-income and equity
                      securities. Convertible preferred stock is a class of
                      capital stock that pays dividends at a specified rate and
                      that has preference over common stock in the payment of
                      dividends and the liquidation of assets. Convertible
                      preferred stock is preferred stock exchangeable for a
                      given number of common stock shares, and has
                      characteristics similar to both fixed-income and equity
                      securities. Because of the conversion feature, the market
                      value of convertible bonds and convertible preferred stock
                      tend to move together with the market value of the
                      underlying stock. As a result, a Fund's selection of
                      convertible bonds and convertible preferred stock is
                      based, to a great extent, on the potential for capital
                      appreciation that may exist in the underlying stock. The
                      value of convertible bonds and convertible preferred stock
                      is also affected by prevailing interest rates, the credit
                      quality of the issuer and any call provisions.
 
                        DERIVATIVES--Instruments whose value is derived from an
                      underlying contract, index or security, or any combination
                      thereof, including futures, options
 
                                       34
<PAGE>   113
 
                      (e.g., puts and calls), options on futures, swap
                      agreements, and some mortgage-backed securities (CMOs,
                      REMICs, IOs and POs). See elsewhere in this "DESCRIPTION
                      OF PERMITTED INVESTMENTS" for discussions of these various
                      instruments, and see "INVESTMENT OBJECTIVES" and
                      "INVESTMENT POLICIES" for more information about any
                      policies and limitations applicable to their use.
 
                        FUTURES AND OPTIONS ON FUTURES--Some futures strategies,
                      including selling futures, buying puts and writing calls,
                      reduce a Fund's exposure to price fluctuations. Other
                      strategies, including buying futures, writing puts and
                      buying calls, tend to increase market exposure. Futures
                      and options may be combined with each other in order to
                      adjust the risk and return characteristics of the overall
                      portfolio.
 
                        Options and futures can be volatile instruments, and
                      involve certain risks that, if applied at an inappropriate
                      time, could negatively impact a Fund's return.
 
                        INVESTMENT GRADE BONDS--Interest-bearing or discounted
                      government or corporate securities that obligate the
                      issuer to pay the bondholder a specified sum of money,
                      usually at specific intervals, and to repay the principal
                      amount of the loan at maturity. Investment grade bonds are
                      those rated BBB or better by S&P or Baa or better by
                      Moody's.
 
                        LOAN PARTICIPATIONS--Loan participations are interests
                      in loans to U.S. corporations (i.e., borrowers) which are
                      administered by the lending bank or agent for a syndicate
                      of lending banks, and sold by the lending bank or
                      syndicate member ("intermediary bank"). In a loan
                      participation, the borrower of the underlying loan will be
                      deemed to be the issuer of the participation interest
                      (except to the extent a purchasing Fund derives its rights
                      from the intermediary bank). Because the intermediary bank
                      does not guarantee a loan participation in any way, a loan
                      participation is subject to the credit risks associated
                      with the underlying corporate borrower. In addition, in
                      the event the underlying corporate borrower fails to pay
                      principal and interest when due, a Fund may encounter
                      delays, expenses and risks that are greater than those
                      that would have been involved if the Fund had purchased a
                      direct obligation (such as commercial paper) of such
                      borrower because it may be necessary under the terms of
                      the loan participation, for the Fund to assert its rights
                      against the borrower through the intermediary bank.
                      Moreover, under the terms of a loan participation, the
                      purchasing Fund may be regarded as a creditor of the
                      intermediary bank (rather than of the underlying corporate
                      borrower), so that a Fund may also be subject to the risk
                      that the issuing bank may become insolvent. Further, in
                      the event of the bankruptcy or insolvency of the corporate
                      borrower, a loan participation may be subject to certain
                      defenses that can be asserted by such borrower as a result
                      of improper conduct by the issuing bank. The secondary
                      market, if any, for these
 
                                       35
<PAGE>   114
 
                      loan participations is limited, and any such participation
                      purchased by a Fund may be regarded as illiquid.
 
                        MONEY MARKET INSTRUMENTS--Short-term, interest bearing
                      instruments or deposits and may include, for example, (i)
                      commercial paper rated within the highest rating category
                      by a NRSRO at the time of investment, or, if not rated,
                      determined by the Advisor to be of comparable quality;
                      (ii) obligations (certificates of deposit, time deposits,
                      bank master notes, and bankers' acceptances) of thrift
                      institutions, savings and loans, U.S. commercial banks
                      (including foreign branches of such banks), and U.S. and
                      foreign branches of foreign banks, provided that such
                      institutions (or, in the case of a branch, the parent
                      institution) have total assets of $1 billion or more as
                      shown on their last published financial statements at the
                      time of investment; (iii) short-term corporate obligations
                      rated within the three highest rating categories by a
                      NRSRO (e.g., at least A by S&P or A by Moody's) at the
                      time of investment, or, if not rated, determined by the
                      Advisor to be of comparable quality; (iv) general
                      obligations issued by the U.S. Government and backed by
                      its full faith and credit, and obligations issued or
                      guaranteed as to principal and interest by agencies or
                      instrumentalities of the U.S. Government (e.g.,
                      obligations issued by Farmers Home Administration,
                      Government National Mortgage Association, Federal Farm
                      Credit Bank and Federal Housing Administration); (v)
                      receipts, including TRs, TIGRs and CATS; (vi) repurchase
                      agreements involving such obligations; (vii) loan
                      participations issued by a bank in the United States with
                      assets exceeding $1 billion and for which the underlying
                      loan is issued by borrowers in whose obligations the Fund
                      may invest; (viii) money market funds and (ix) foreign
                      commercial paper. Certain of the obligations in which a
                      Fund may invest may be variable or floating rate
                      instruments, may involve conditional or unconditional
                      demand features and may include variable amount master
                      demand notes.
 
                        MORTGAGE-BACKED SECURITIES--Securities generally issued
                      or guaranteed by U.S. government agencies such as GNMA,
                      FNMA, or FHLMC. GNMA mortgage-backed certificates are
                      mortgage-backed securities of the modified pass-through
                      type, which means that both interest and principal
                      payments (including prepayments) are passed through
                      monthly to the holder of the certificate. Each GNMA
                      certificate evidences an interest in a specific pool of
                      mortgage loans insured by the Federal Housing
                      Administration or the Farmers Home Administration or
                      guaranteed by the Veterans Administration. FNMA, a
                      federally-chartered and stockholder-owned corporation,
                      issues pass-through certificates which are guaranteed as
                      to payment of principal and interest by FNMA. FHLMC, a
                      corporate instrumentality of the United States, issues
                      participation certificates which represent an interest in
                      mortgages held in FHLMC's portfolio. FHLMC guarantees the
                      timely payment of interest and the ultimate collection of
                      principal. Securities issued or guaranteed by FNMA and
                      FHLMC are not backed
 
                                       36
<PAGE>   115
 
                      by the full faith and credit of the United States. There
                      can be no assurance that the U.S. government would provide
                      financial support to FNMA or FHLMC if necessary in the
                      future.
 
                        Although payments on certain mortgage-related securities
                      may be guaranteed by a third party or otherwise similarly
                      secured, the market value of such securities is not
                      secured and may fluctuate significantly because of changes
                      in interest rates and changes in prepayment levels. Thus,
                      for example, if a Fund purchases a mortgage-related
                      security at a premium, that portion may be lost if there
                      is a decline in the market value of the security whether
                      due to changes in interest rates or prepayments of the
                      underlying mortgage collateral. As with other
                      interest-bearing securities, the prices of
                      mortgage-related securities are inversely affected by
                      changes in interest rates. However, although the value of
                      a mortgage-related security may decline when interest
                      rates rise, the converse is not necessarily true because
                      in periods of declining interest rates the mortgages
                      underlying the securities are prone to prepayment which
                      results in amounts being available for reinvestment which
                      are likely to be invested at a lower interest rate. For
                      this and other reasons, the stated maturity of a
                      mortgage-related security may be shortened by unscheduled
                      prepayments on the underlying mortgages and, accordingly,
                      it is not possible to predict accurately the security's
                      return to a Fund. In addition, regular payments received
                      on mortgage-related securities include both interest and
                      principal. No assurance can be given as to the return a
                      Fund will receive when these amounts are reinvested. As a
                      consequence, mortgage-related securities may be a less
                      effective means of "locking in" interest rates than other
                      types of debt securities having the same stated maturity,
                      may have less potential for capital appreciation and may
                      be considered riskier investments as a result.
 
                        Adjustable rate mortgage securities ("ARMS") are
                      pass-through certificates representing ownership interests
                      in a pool of adjustable rate mortgages and the resulting
                      cash flow from those mortgages. Unlike conventional debt
                      securities, which provide for periodic (usually
                      semi-annual) payments of interest and payments of
                      principal at maturity or on specified call dates, ARMs
                      provide for monthly payments based on a pro rata share of
                      both periodic interest and principal payments and
                      prepayments of principal on the underlying mortgage pool
                      (less GNMA's, FNMA's, or FHLMC's fees and any applicable
                      loan servicing fees).
 
                        Collateralized mortgage obligations ("CMOs") are bonds
                      generally issued by single purpose, stand-alone finance
                      subsidiaries or trusts established by financial
                      institutions, government agencies, investment banks, or
                      other similar institutions, and collateralized by pools of
                      mortgage loans. Payments of principal and interest on the
                      collateral mortgages are used to pay debt service on the
                      CMO. In a CMO, a series of bonds or certificates is issued
                      in multiple classes. Each class of CMOs,
 
                                       37
<PAGE>   116
 
                      often referred to as a "tranche," is issued at a specific
                      coupon rate and has a stated maturity or final
                      distribution date. The principal and interest payment on
                      the underlying mortgages may be allocated among the
                      classes of CMOs in several ways. Typically, payments of
                      principal, including any prepayments, on the underlying
                      mortgages would be applied to the classes in the order of
                      their respective stated maturities or final distribution
                      dates, so that no payment of principal will be made on
                      CMOs of a class until all CMOs of other classes having
                      earlier stated maturities or final distribution dates have
                      been paid in full.
 
                        One or more classes of CMOs may have coupon rates that
                      reset periodically based on an index, such as the London
                      Interbank Offered Rate ("LIBOR"). Each Fund may purchase
                      fixed, adjustable, or "floating" rate CMOs that are
                      collateralized by fixed rate or adjustable rate mortgages
                      that are guaranteed as to payment of principal and
                      interest by an agency or instrumentality of the U.S.
                      government or are directly guaranteed as to payment of
                      principal and interest by the issuer, which guarantee is
                      collateralized by U.S. government securities or is
                      collateralized by privately issued fixed rate or
                      adjustable rate mortgages.
 
                        Securities such as zero-coupon obligations,
                      mortgage-backed and asset-backed securities, and
                      collateralized mortgage obligations ("CMOs") will have
                      greater price volatility then other fixed-income
                      obligations. Because declining interest rates may lead to
                      prepayment of underlying mortgages, automobile sales
                      contracts or credit card receivables, the prices of
                      mortgage-related and asset-backed securities may not rise
                      with a decline in interest rates. Mortgage-backed and
                      asset-backed securities and CMOs are extremely sensitive
                      to the rate of principal prepayment. Similarly, callable
                      corporate bonds also present risk of prepayment. During
                      periods of falling interest rates, securities that can be
                      called or prepaid may decline in value relative to similar
                      securities that are not subject to call or prepayment.
 
                        Real Estate Mortgage Investment Conduits ("REMICs") are
                      private entities formed for the purpose of holding a fixed
                      pool of mortgages secured by an interest in real property.
                      REMICs are similar to CMOs in that they issue multiple
                      classes of securities.
 
                        OPTIONS--Under a call option, the purchaser of the
                      option has the right to purchase, and the writer (the
                      Fund) the obligation to sell, the underlying security at
                      the exercise price during the option period. A put option
                      gives the purchaser the right to sell, and the writer the
                      obligation to purchase, the underlying security at the
                      exercise price during the option period.
 
                        In addition, a Fund may buy options on stock indices to
                      invest cash on an interim basis. Such options will be
                      listed on a national securities exchange. In
 
                                       38
<PAGE>   117
 
                      order to close out an option position, a Fund may enter
                      into a "closing purchase transaction" -- the purchase of
                      an option on the same security with the same exercise
                      price and expiration date as the option contract
                      previously written on any particular security. When the
                      security is sold, a Fund effects a closing purchase
                      transaction so as to close out any existing option on that
                      security.
 
                        There are risks associated with such investments
                      including the following: (1) the success of a hedging
                      strategy may depend on the ability of the Advisor or
                      Sub-Advisor to predict movements in the prices of
                      individual securities, fluctuations in markets and
                      movements in interest rates; (2) there may be an imperfect
                      correlation between the movement in prices of securities
                      held by a Fund and the price of options; (3) there may not
                      be a liquid secondary market for options; and (4) while a
                      Fund will receive a premium when it writes covered call
                      options, it may not participate fully in a rise in the
                      market value of the underlying security.
 
                        RECEIPTS--Interests in separately traded interest and
                      principal component parts of U.S. Treasury obligations
                      that are issued by banks and brokerage firms and are
                      created by depositing Treasury notes and Treasury bonds
                      into a special account at a custodian bank. The custodian
                      holds the interest and principal payments for the benefit
                      of the registered owners of the certificates of such
                      receipts. The custodian arranges for the issuance of the
                      certificates or receipts evidencing ownership and
                      maintains the register. Receipts include "Treasury
                      Receipts" ("TR's"), "Treasury Investment Growth Receipts"
                      ("TIGR's"), and "Certificates of Accrual on Treasury
                      Securities" ("CATS"). TR's, TIGR's and CATS are sold as
                      zero coupon securities, which means that they are sold at
                      a substantial discount and redeemed at face value at their
                      maturity date without interim cash payments of interest or
                      principal. This discount is accreted over the life of the
                      security, and such accretion will constitute the income
                      earned on the security for both accounting and tax
                      purposes. Because of these features, such securities may
                      be subject to greater interest rate volatility than
                      interest-paying securities. See also "FEDERAL TAXATION."
 
                        REPURCHASE AGREEMENTS--Agreements whereby a Fund will
                      acquire securities from approved financial institutions or
                      registered broker-dealers that agree to repurchase the
                      securities at a mutually agreed-upon date and price. The
                      repurchase agreements entered into by the Funds will
                      provide that the underlying security at all times shall
                      have a value equal to 102% of the resale price stated in
                      the agreement. Repurchase agreements involving government
                      securities are not subject to a Fund's fundamental
                      investment limitation on purchasing securities of any one
                      issuer. If the seller defaults on its repurchase
                      obligation or becomes insolvent, the Fund holding such
                      obligations would suffer a loss to the extent that either
                      the proceeds from a sale of the underlying portfolio
                      securities were less
 
                                       39
<PAGE>   118
 
                      than the repurchase price or the Fund's disposition of the
                      securities was delayed pending court action.
 
                        Securities subject to repurchase agreements will be held
                      by a qualified custodian or in the Federal
                      Reserve/Treasury book-entry system. Repurchase agreements
                      are considered to be loans by a Fund under the Investment
                      Company Act of 1940 (the "1940 Act").
 
                        REVERSE REPURCHASE AGREEMENTS--A Fund may borrow funds
                      for temporary purposes by entering into reverse repurchase
                      agreements, provided such action is consistent with the
                      Fund's investment objective and fundamental investment
                      restrictions; as a matter of non-fundamental policy, each
                      Fund intends to limit such investments to no more than 10%
                      of the value of its total assets. Pursuant to a reverse
                      repurchase agreement, a Fund will sell portfolio
                      securities to financial institutions such as banks or to
                      broker-dealers, and agree to repurchase the securities at
                      a mutually agreed-upon date and price. A Fund intends to
                      enter into reverse repurchase agreements only to avoid
                      otherwise selling securities during unfavorable market
                      conditions to meet redemptions. At the time a Fund enters
                      into a reverse repurchase agreement, it will place in a
                      segregated custodial account assets such as U.S.
                      Government securities or other liquid, high-quality debt
                      securities consistent with the Fund's investment objective
                      having a value equal to 102% of the repurchase price
                      (including accrued interest), and will subsequently
                      monitor the account to ensure that an equivalent value is
                      maintained. Reverse repurchase agreements involve the risk
                      that the market value of the securities sold by a Fund may
                      decline below the price at which a Fund is obligated to
                      repurchase the securities. Reverse repurchase agreements
                      are considered to be borrowings by a Fund under the
                      Investment Company Act of 1940.
 
                        RULE 144A SECURITIES--Rule 144A Securities are
                      securities that have not been registered under the
                      Securities Act of 1933, but which may be traded between
                      certain qualified institutional investors, including
                      investment companies. The absence of a secondary market
                      may affect the value of the Rule 144A Securities. The
                      Board of Trustees of HighMark has established guidelines
                      and procedures to be utilized to determine the liquidity
                      of such securities.
 
                        SECURITIES ISSUED ON A FORWARD COMMITMENT BASIS OR
                      WHEN-ISSUED SECURITIES--Securities purchased for delivery
                      beyond the normal settlement date at a stated price and
                      yield and which thereby involve a risk that the yield
                      obtained in the transaction will be less than that
                      available in the market when delivery takes place. When a
                      Fund agrees to purchase when-issued securities or enters
                      into forward commitments, HighMark's custodian will be
                      instructed to set aside cash or liquid portfolio
                      securities equal to the amount of the commitment in a
                      segregated account. A Fund will generally not pay for such
                      securities and no income will accrue on the securities
                      until they are received.
 
                                       40
<PAGE>   119
 
                      These securities are recorded as an asset and are subject
                      to changes in value based upon changes in the general
                      level of interest rates. The purchase of securities on a
                      "when-issued" basis or forward commitments may have the
                      effect of leverage, which may increase the risk of
                      fluctuations in a Fund's net asset value.
 
                        SECURITIES LENDING--During the time portfolio securities
                      are on loan from a Fund, the borrower will pay the Fund
                      any dividends or interest paid on the securities. In
                      addition, loans will be subject to termination by the Fund
                      or the borrower at any time and, while a Fund will
                      generally not have the right to vote securities on loan,
                      it will terminate the loan and regain the right to vote if
                      that is considered important with respect to the
                      investment. While the lending of securities may subject a
                      Fund to certain risks, such as delays or an inability to
                      regain the securities in the event the borrower were to
                      default on its lending agreement or enter into bankruptcy,
                      a Fund will receive 100% collateral in the form of cash or
                      U.S. Government securities. This collateral will be valued
                      daily by the lending agent, with oversight by the Advisor,
                      and, should the market value of the loaned securities
                      increase, the borrower will be required to furnish
                      additional collateral to the Fund.
 
                        SECURITIES SUBJECT TO A PUT FEATURE--A "put" feature
                      permits a Fund to sell a fixed income security at a fixed
                      price prior to maturity. The underlying fixed income
                      securities subject to a put may be sold at any time at the
                      market rates. However, unless the put was an integral part
                      of the fixed income security as originally issued, it may
                      not be marketable or assignable. Generally, a premium is
                      paid for a put feature or a put feature is purchased
                      separately which results in a lower yield than would
                      otherwise be available for the same fixed income
                      securities.
 
                        TIME DEPOSITS--Non-negotiable receipts issued by U.S. or
                      foreign banks in exchange for the deposit of funds. Like
                      certificates of deposit, they earn a specified rate of
                      interest over a definite period of time; however, they
                      cannot be traded in the secondary market. Time deposits
                      with a withdrawal penalty are considered to be illiquid
                      securities.
 
                        U.S. GOVERNMENT AGENCY SECURITIES--Certain Federal
                      agencies have been established as instrumentalities of the
                      U.S. Government to supervise and finance certain types of
                      activities. Issues of these agencies, while not direct
                      obligations of the U.S. Government, are either backed by
                      the full faith and credit of the United States (e.g., GNMA
                      securities) or supported by the issuing agencies' right to
                      borrow from the Treasury. The issues of other agencies are
                      supported only by the credit of the instrumentality (e.g.,
                      FNMA securities).
 
                        U.S. TREASURY OBLIGATIONS--Bills, notes, and bonds
                      issued by the U.S. Treasury, as well as separately traded
                      interest and principal component parts of
 
                                       41
<PAGE>   120
 
                      such obligations known as Separately Traded Registered
                      Interest and Principal Securities ("STRIPS") that are
                      transferable through the Federal book-entry system.
 
                        U.S. Government Securities generally do not involve the
                      credit risks associated with investments in other types of
                      fixed-income securities, although, as a result, the yields
                      available from U.S. Government Securities are generally
                      lower than the yields available from otherwise comparable
                      corporate fixed-income securities. Like other fixed-income
                      securities, however, the values of U.S. Government
                      Securities change as interest rates fluctuate.
                      Fluctuations in the value of portfolio securities will in
                      many cases not affect interest income on existing
                      portfolio securities, but will be reflected in the Fund's
                      net asset value. Because the magnitude of these
                      fluctuations will generally be greater at times when a
                      Fund's average maturity is longer, under certain market
                      conditions the Fund may invest in short-term investments
                      yielding lower current income rather than investing in
                      higher yielding longer-term securities.
 
                        VARIABLE AND FLOATING RATE INSTRUMENTS--Obligations that
                      may carry variable or floating rates of interest, may
                      involve conditional or unconditional demand features and
                      may include variable amount master demand notes. The
                      interest rates on these securities may be reset daily,
                      weekly, quarterly or some other reset period, and may have
                      a floor or ceiling on interest rate changes. There is a
                      risk that the current interest rate on such obligations
                      may not accurately reflect existing market interest rates.
                      A demand instrument with a demand notice period exceeding
                      seven days may be considered illiquid if there is no
                      secondary market for such security.
 
                        WARRANTS--Securities that entitle the holder to buy a
                      proportionate amount of common stock at a specified price
                      for a limited or unlimited period of time. Warrants are
                      often freely transferable and are traded on major stock
                      exchanges.
 
                        YANKEE BONDS--Dollar denominated securities issued by
                      foreign-domiciled issuers that obligate the issuer to pay
                      the bondholder a specified sum of money, usually
                      semiannually, and to repay the principal amount of the
                      loan at maturity. Sovereign bonds are bonds issued by the
                      governments of foreign countries. Supranational bonds are
                      those issued by supranational entities, such as the World
                      Bank and European Investment Bank. Canadian bonds are
                      bonds issued by Canadian provinces.
 
                        ZERO-COUPON OBLIGATIONS--Non-income producing securities
                      evidencing ownership of future interest and principal
                      payments on bonds. These obligations pay no current
                      interest and are typically sold at prices greatly
                      discounted from par value. The return on a zero-coupon
                      obligation, when held to maturity, equals the difference
                      between the par value and the original purchase price.
 
                                       42
<PAGE>   121
 
                        For federal income tax purposes, the difference between
                      the par value and the original issue price (original issue
                      discount) is included in the income of a holder of a
                      zero-coupon obligation over the term of the obligation
                      even though the interest is not paid until maturity. The
                      amount included in income is determined under a constant
                      interest rate method. In addition, if an obligation is
                      purchased subsequent to its original issue, a holder such
                      as the Fixed Income Funds may elect to include market
                      discount in income currently on a ratable accrual method
                      or a constant interest rate method. Market discount is the
                      difference between the obligation's "adjusted issue price"
                      (the original issue price plus original issue discount
                      accrued to date) and the holder's purchase price. If no
                      such election is made, gain on the disposition of a market
                      discount obligation is treated as ordinary income (rather
                      than capital gain) to the extent it does not exceed the
                      accrued market discount.
 
                        Zero-coupon obligations have greater price volatility
                      than other fixed-income obligations of similar maturity
                      and such obligations will be purchased when the yield
                      spread, in light of the obligation's duration, is
                      considered advantageous.
 
                                       43
<PAGE>   122
 
                          HighMark FIXED INCOME FUNDS
                            INVESTMENT PORTFOLIOS OF
                                 HighMark FUNDS
                   For further information (including current
                  yield, purchase and redemption information),
                              call 1-800-433-6884
 
INVESTMENT ADVISOR
Pacific Alliance Capital Management,
a division of Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
CUSTODIAN
Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
ADMINISTRATOR & DISTRIBUTOR
SEI Fund Resources and
SEI Financial Services Company
Oaks, PA 19456
 
LEGAL COUNSEL
Ropes & Gray
One Franklin Square
1301 K Street, N.W., Suite 800 East
Washington, D.C. 20005
 
AUDITORS
Deloitte & Touche LLP
1700 Courthouse Plaza Northeast
Dayton, OH 45402
 
  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS IN CONNECTION WITH THE OFFERING
MADE BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR
REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY HIGHMARK OR
ITS DISTRIBUTOR. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFERING BY HIGHMARK OR
BY THE DISTRIBUTOR IN ANY JURISDICTION IN WHICH SUCH OFFERING MAY NOT LAWFULLY
BE MADE.
 
NOT FDIC INSURED
<PAGE>   123
                                - Balanced Fund

                                   Prospectus

                                Fiduciary Shares

                                 March 28, 1997

84821-A(3/97)                 [LOGO] HIGHMARK(SM)
                                     FUNDS

<PAGE>   124
 
                                 HIGHMARK FUNDS
 
                                 BALANCED FUND
 
  HighMark Funds ("HighMark") is an open-end, diversified, registered investment
company that offers a convenient means of investing in one or more
professionally managed portfolios of securities. This Prospectus relates to
HighMark's Balanced Fund.
 
                                FIDUCIARY SHARES
 
  HighMark's Fiduciary Shares are offered to the following investors: (i)
fiduciary, advisory, agency, custodial and other similar accounts maintained
with Union Bank of California, N.A. or its affiliates; (ii) SelectIRA accounts
established with The Bank of California, N.A. and invested in any of HighMark's
Equity or Income Funds prior to June 20, 1994, which have remained continuously
open thereafter and which are not considered to be fiduciary accounts; (iii)
Shareholders who currently own Shares of HighMark's Equity or Income Funds that
were purchased prior to June 20, 1994 within an account registered in their name
with the Funds; and (iv) present and retired directors, officers and employees
(and their spouses and children under the age of 21) of Union Bank of
California, N.A., HighMark's current or former distributors or their respective
affiliated companies who currently own Shares of HighMark Funds which were
purchased before April 30, 1997.
 
  This Prospectus sets forth concisely the information about HighMark and the
Balanced Fund that a prospective investor should know before investing.
Investors are advised to read this Prospectus and retain it for future
reference. A Statement of Additional Information dated the same date as this
Prospectus has been filed with the Securities and Exchange Commission and is
available without charge by writing the Distributor, SEI Financial Services
Company, Oaks, Pennsylvania 19456, or by calling 1-800-433-6884. The Statement
of Additional Information is incorporated into this Prospectus by reference.
This Prospectus relates only to the Fiduciary Shares of the Balanced Fund.
Interested persons who wish to obtain a prospectus for the other Funds of
HighMark may contact the Distributor at the above address and telephone number.
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
HIGHMARK'S SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK, INCLUDING UNION BANK OF CALIFORNIA, N.A., BANK OF
TOKYO-MITSUBISHI, LIMITED OR ANY OF THEIR AFFILIATES OR CORRESPONDENTS.
HIGHMARK'S SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT INSURANCE
CORPORATION OR ANY OTHER GOVERNMENT AGENCY. INVESTMENT IN HIGHMARK INVOLVES
RISKS, INCLUDING POSSIBLE LOSS OF THE PRINCIPAL AMOUNT INVESTED.
 
March 28, 1997
Fiduciary Shares
<PAGE>   125
 
                                    SUMMARY
 
HIGHMARK FUNDS ("HighMark") is an open-end, diversified, registered investment
company providing a convenient way to invest in professionally managed
portfolios of securities. The following provides basic information about the
Fiduciary Shares of HighMark Balanced Fund (the "Balanced Fund" or the "Fund").
This summary is qualified in its entirety by reference to the more detailed
information provided elsewhere in the Prospectus and in the Statement of
Additional Information.
 
WHAT IS THE FUND'S INVESTMENT OBJECTIVE? The Balanced Fund seeks capital
appreciation and income, with a secondary investment objective of conservation
of capital. (See "INVESTMENT OBJECTIVE").
 
WHAT ARE THE FUND'S PERMITTED INVESTMENTS? The Fund primarily invests,
consistent with its investment objective, in equity securities including common
stocks and securities convertible into common stocks. The Fund may also invest
consistent with its investment objective and investment policies in fixed-income
securities. (See "INVESTMENT POLICIES").
 
WHAT ARE THE RISKS INVOLVED WITH AN INVESTMENT IN THE BALANCED FUND? The
investment policies of the Fund entail certain risks and considerations of which
an investor should be aware. The Fund may purchase common stocks and other
equity securities that are volatile and which may fluctuate in value more than
other types of investments. Values of fixed income securities and,
correspondingly, share prices of Funds invested in such securities, tend to vary
inversely with interest rates, and may be affected by other market and economic
factors as well. (See "Risk Factors").
 
ARE MY INVESTMENTS INSURED? HighMark's Shares are not federally insured by the
FDIC or any other government agency. Any guarantee by the U.S. Government, its
agencies or any instrumentalities of the securities in which the Fund invests
guarantees only the payment of principal and interest on the guaranteed
security, and does not guarantee the total return or value of the security or
total return or value of Shares of the Fund.
 
WHO IS THE ADVISOR? Pacific Alliance Capital Management, a division of Union
Bank of California, N.A., serves as the Advisor to HighMark. (See "The
Advisor").
 
WHO IS THE ADMINISTRATOR? SEI Fund Resources serves as the Administrator of
HighMark. (See "The Administrator").
 
WHO IS THE CUSTODIAN? Union Bank of California, N.A. (the "Bank") serves as the
custodian of HighMark's assets. (See "The Custodian").
 
WHO IS THE DISTRIBUTOR? SEI Financial Services Company acts as distributor of
HighMark's Shares. (See "The Distributor").
 
HOW DO I PURCHASE AND REDEEM SHARES? Purchases and redemptions may be made
through the Distributor on days on which both the New York Stock Exchange and
the Federal Reserve wire system are open for business ("Business Days"). The
minimum initial investment is generally $1,000. A purchase order will be
effective if the Distributor receives an order prior to 1:00 p.m., Pacific time
(4:00 p.m., Eastern time). Purchase orders for Shares will be executed at a per
Share price equal to the asset value next determined after the purchase order is
effective. Redemption orders must be placed prior to 1:00 p.m., Pacific time
(4:00 p.m., Eastern time) on any Business Day for the order to be effective that
day. (See "PURCHASE AND REDEMPTION OF SHARES").
 
                                        2
<PAGE>   126
 
HOW ARE DIVIDENDS PAID? Substantially all of the net investment income
(exclusive of capital gains) of the Fund is distributed in the form of monthly
dividends to Shareholders of record. Any capital gain is distributed at least
annually. Distributions are paid in additional Shares unless the Shareholder
elects to take the payment in cash. (See "DIVIDENDS").
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
Summary...............................................................................    2
Balanced Fund Fee Table...............................................................    4
Financial Highlights..................................................................    5
Fund Description......................................................................    6
Investment Objective..................................................................    6
Investment Policies...................................................................    6
General...............................................................................    7
  Money Market Instruments............................................................    7
  Illiquid and Restricted Securities..................................................    7
  Lending of Portfolio Securities.....................................................    7
  Other Investments...................................................................    8
  Risk Factors........................................................................    9
Investment Limitations................................................................   11
  Portfolio Turnover..................................................................   12
Purchase and Redemption of Shares.....................................................   12
Exchange Privileges...................................................................   14
Dividends.............................................................................   15
Federal Taxation......................................................................   15
Service Arrangements..................................................................   17
  The Advisor.........................................................................   17
  Administrator.......................................................................   18
  The Transfer Agent..................................................................   18
  Shareholder Service Plan............................................................   18
  Distributor.........................................................................   19
  Banking Laws........................................................................   19
  Custodian...........................................................................   19
General Information...................................................................   19
  Description of HighMark & Its Shares................................................   19
  Performance Information.............................................................   20
  Miscellaneous.......................................................................   21
Description of Permitted Investments..................................................   22
</TABLE>
 
                                        3
<PAGE>   127
 
                            BALANCED FUND FEE TABLE
 
<TABLE>
<CAPTION>
                                                                                                      BALANCED FUND
                                                                                                        FIDUCIARY
                                                                                                         SHARES
                                                                                                      -------------
<S>                                                                                                   <C>
SHAREHOLDER TRANSACTION EXPENSES(a)
  Maximum Sales Load Imposed on Purchases (as a percentage of offering price).......................         0%
  Maximum Sales Load Imposed on Reinvested Dividends (as a percentage of offering price)............         0%
  Deferred Sales Load (as a percentage of original purchase price or redemption proceeds, as                 0%
    applicable).....................................................................................
  Redemption Fees (as a percentage of amount redeemed, if applicable)(b)............................         0%
  Exchange Fee(a)...................................................................................      $   0
ANNUAL OPERATING EXPENSES
  (as a percentage of net assets)
  Management Fees...................................................................................      0.60%
  12b-1 Fees........................................................................................      0.00%
  Other Expenses (after voluntary reduction)(c).....................................................      0.30%
                                                                                                       --------
  Total Fund Operating Expenses(d)..................................................................      0.90%
                                                                                                       ========
</TABLE>
 
  EXAMPLE: You would pay the following expenses on a $1,000 investment, assuming
(1) 5% annual return and (2) redemption at the end of each time period.
 
<TABLE>
<CAPTION>
                                                                 1 YEAR   3 YEARS   5 YEARS   10 YEARS
                                                                 ------   -------   -------   --------
<S>                                                              <C>      <C>       <C>       <C>
Balanced Fund Fiduciary Shares..................................   $9       $29       $50       $111
</TABLE>
 
  The purpose of the table above is to assist an investor in the Balanced Fund
in understanding the various costs and expenses that a Shareholder will bear
directly or indirectly. For a more complete discussion of the Fund's annual
operating expenses, see SERVICE ARRANGEMENTS below. THE FOREGOING EXAMPLE SHOULD
NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE EXPENSES. ACTUAL EXPENSES
MAY BE GREATER OR LESS THAN THOSE SHOWN.
- ---------------
 
(a) Certain entities (including Union Bank of California and its affiliates)
    making investments in the Balanced Fund on behalf of their customers may
    charge customers fees for services provided in connection with the
    investment in, redemption of, and exchange of Shares. (See PURCHASE AND
    REDEMPTION OF SHARES, EXCHANGE PRIVILEGES, and SERVICE ARRANGEMENTS--
    below.)
 
(b) A wire redemption charge is deducted from the amount of a wire redemption
    payment made at the request of a Shareholder. (See PURCHASE AND REDEMPTION
    OF SHARES below.)
 
(c) Absent voluntary fee waivers, OTHER EXPENSES would be 0.48% for the
    Fiduciary Shares of the Balanced Fund.
 
(d) Absent voluntary fee waivers, TOTAL FUND OPERATING EXPENSES would be 1.08%
    for the Fiduciary Shares of the Balanced Fund.
 
                                        4
<PAGE>   128
 
                              FINANCIAL HIGHLIGHTS
 
  The table below sets forth certain financial information with respect to the
Fiduciary Shares of the Balanced Fund. Financial highlights for the Fund for the
period ended July 31, 1996 have been derived from financial statements audited
by Deloitte & Touche LLP, independent auditors for HighMark, whose report
thereon is included in the Statement of Additional Information. Prior to the
fiscal year ended July 31, 1996, Coopers & Lybrand L.L.P. served as independent
accountants for HighMark.
 
  Prior to June 20, 1994, the Balanced Fund offered a single class of Shares
(now designated Fiduciary Shares) throughout the periods shown.
 
                                 BALANCED FUND
 
<TABLE>
<CAPTION>
                                                                                     NOV. 14,
                                                                                      1993 TO
                                                        YEAR ENDED JULY 31,          JULY 31,
                                                     -------------------------       ---------
                                                       1996            1995           1994(a)
                                                     FIDUCIARY       FIDUCIARY       FIDUCIARY
                                                     ---------       ---------       ---------
<S>                                                  <C>             <C>             <C>
Net Asset Value,
  Beginning of Period..............................   $ 10.85         $  9.76         $ 10.00
                                                      -------         -------         -------
Investment Activities
  Net investment income............................      0.40            0.39            0.26
  Net realized and unrealized gains (losses) on
     investments...................................      0.79            1.09           (0.24)
                                                      -------         -------         -------
     Total from Investment Activities..............      1.19            1.48            0.02
                                                      -------         -------         -------
Distributions
  Net investment income............................     (0.40)          (0.39)          (0.26)
                                                      -------         -------         -------
Net Asset Value, End of Period.....................   $ 11.64         $ 10.85         $  9.76
                                                      =======         =======         =======
Total Return.......................................     11.06%          15.62%          (0.26)%(d)
Ratios/Supplementary Data:
Net Assets at end of period (000)..................   $39,502         $29,961         $25,851
Ratio of expenses to average net assets............      0.94%           0.89%           0.87%(b)
Ratio of net investment income to average net
  assets...........................................      3.49%           3.93%           3.77%(b)
Ratio of expenses to average net assets*...........      1.78%           1.80%           1.79%(b)
Ratio of net investment income to average net
  assets*..........................................      2.65%           3.02%           2.85%(b)
Portfolio turnover (c).............................     12.84%          20.70%          44.14%
</TABLE>
 
- ---------
(a) Period from commencement of operations. On June 20, 1994, the Balanced Fund
    commenced offering Investor Shares (now called "Retail Shares") and
    designated existing shares as Fiduciary Shares.
(b) Annualized.
(c) Portfolio turnover is calculated on the basis of the Fund as a whole without
    distinguishing between the classes of shares issued.
(d) Not annualized.
 
                                        5
<PAGE>   129
 
FUND
DESCRIPTION             HighMark Funds ("HighMark") is an open-end, diversified,
                      registered investment company that currently offers units
                      of beneficial interest ("Shares") in sixteen separate
                      investment portfolios ("Funds"). All of the Funds are
                      advised by Pacific Alliance Capital Management (the
                      "Advisor"), a division of Union Bank of California, N.A.
                      Shareholders may purchase Shares of selected Funds through
                      two separate classes (the "Retail" and "Fiduciary"
                      classes). These classes may have different sales charges
                      and other expenses, which may affect performance.
                      Information regarding HighMark's other Funds and other
                      classes is contained in separate prospectuses that may be
                      obtained from HighMark's Distributor, SEI Financial
                      Services Company, at Oaks, Pennsylvania 19456, or by
                      calling 1-800-433-6884.
 
                        For information concerning those investors who qualify
                      to purchase Fiduciary Shares, see PURCHASE AND REDEMPTION
                      OF SHARES below. (Fiduciary Shares may be hereinafter
                      referred to as "Shares.")
 
INVESTMENT
OBJECTIVE               The Balanced Fund seeks capital appreciation and income.
                      Conservation of capital is a secondary consideration.
 
                        The investment objective and certain of the investment
                      limitations of the Balanced Fund may not be changed
                      without a vote of the holders of a majority of the
                      outstanding Shares of the Fund (as defined under GENERAL
                      INFORMATION--Miscellaneous below). There can be no
                      assurance that the Fund will achieve its investment
                      objective.
 
INVESTMENT
POLICIES                The Balanced Fund may invest in any type or class of
                      security. Under normal market conditions, the Balanced
                      Fund will invest between 50% and 70% of its total assets
                      in equity securities. Senior fixed-income securities will
                      normally constitute at least 25% of the Balanced Fund's
                      net assets.
 
                        Equity securities include common stocks, warrants to
                      purchase common stocks, American Depositary Receipts
                      ("ADRs"), preferred stocks, securities (including debt
                      securities) convertible into or exercisable for common
                      stocks and Standard & Poor's Depositary Receipts
                      ("SPDRs"). The Balanced Fund's fixed-income investments
                      consist of bonds, debentures, notes, zero-coupon
                      securities, all forms of mortgage-related securities
                      (including collateralized mortgage obligations), and
                      obligations issued or guaranteed by the U.S. or foreign
                      Governments or their agencies or instrumentalities.
                      Privately issued mortgage-backed securities must be rated
                      in one of the top two categories by at least one NRSRO as
                      defined below. In addition to mortgage-backed securities,
                      the Balanced Fund may invest in other asset-backed
                      securities including, but not limited to, those backed by
                      company receivables, truck and auto loans, leases, and
                      credit card or other receivables.
 
                                        6
<PAGE>   130
 
                        The Balanced Fund may invest in bonds, notes and
                      debentures of any maturity issued by U.S. and foreign
                      corporate and governmental issuers. The Balanced Fund will
                      invest only in corporate fixed-income securities that are
                      rated at the time of purchase as investment grade by a
                      nationally recognized statistical rating organization
                      ("NRSRO") (e.g., at least Baa from Moody's Investors
                      Service, Inc. ("Moody's") or BBB from Standard & Poor's
                      Corporation ("S&P")) or, if unrated, which the Advisor
                      deems to be attractive opportunities and of comparable
                      quality. For a description of the rating symbols of the
                      NRSROs utilized by the Advisor, see the Appendix to the
                      Statement of Additional Information.
 
                        In the event that a security owned by the Fund is
                      downgraded below the stated rating categories, the Advisor
                      will take appropriate action with regard to that security.
 
                        The portions of the Balanced Fund's assets invested in
                      equity securities and fixed-income securities will vary
                      from time to time within the stated ranges, depending upon
                      the Advisor's assessment of business, economic and market
                      conditions. The Advisor considers a combination of risk,
                      capital appreciation, income, and protection of capital
                      value.
 
GENERAL               Money Market Instruments

                        Under normal market conditions, the Balanced Fund may
                      invest up to 25% of its total assets in money market
                      instruments. When market conditions indicate a temporary
                      "defensive" investment strategy as determined by the
                      Advisor, the Fund may invest more than 25% of its total
                      assets in money market instruments. The Fund will not be
                      pursuing its investment objective to the extent that a
                      substantial portion of its assets are invested in money
                      market instruments.
 
                      Illiquid and Restricted Securities

                        The Balanced Fund shall limit investment in illiquid
                      securities to 15% or less of its net assets. Generally, an
                      "illiquid security" is any security that cannot be
                      disposed of promptly and in the ordinary course of
                      business at approximately the amount at which the Fund has
                      valued the instrument. The absence of a trading market can
                      make it difficult to ascertain the market value of
                      illiquid securities. The Fund may purchase restricted
                      securities which have not been registered under the
                      Securities Act of 1933 (e.g., Rule 144A Securities and
                      Section 4(2) commercial paper) subject to policies
                      approved by the Board of Trustees. See INVESTMENT
                      RESTRICTIONS in the Statement of Additional Information.
 
                      Lending of Portfolio Securities

                        In order to generate additional income, the Fund may
                      lend its portfolio securities to broker-dealers, banks or
                      other institutions. The Fund may lend
 
                                        7
<PAGE>   131
 
                      portfolio securities in an amount representing up to
                      33 1/3% of the value of the Fund's total assets.
 
                      Other Investments

                        The Fund may enter into repurchase agreements and
                      reverse repurchase agreements.
 
                        The Balanced Fund may enter into forward commitments or
                      purchase securities on a "when-issued" basis. The Balanced
                      Fund expects that commitments by it to enter into forward
                      commitments or purchase when-issued securities will not
                      exceed 25% of the value of the Fund's total assets under
                      normal market conditions. The Fund does not intend to
                      purchase when-issued securities or forward commitments for
                      speculative or leveraging purposes but only for the
                      purpose of acquiring portfolio securities.
 
                        The Fund may also invest in money market instruments,
                      money market funds, and in cash, and may invest in other
                      registered investment companies with similar investment
                      objectives.
 
                        The Balanced Fund may invest up to 5% of its total
                      assets in the shares of any one registered investment
                      company, but may not own more than 3% of the securities of
                      any one registered investment company or invest more than
                      10% of its assets in the securities of other registered
                      investment companies. In accordance with an exemptive
                      order issued to HighMark by the SEC, such other registered
                      investment company securities may include shares of a
                      money market fund of HighMark, and may include registered
                      investment companies for which the Advisor or Sub-Advisor
                      to a Fund of HighMark, or an affiliate of such Advisor or
                      Sub-Advisor, serves as investment advisor, administrator
                      or distributor. Because other registered investment
                      companies employ an investment advisor, such investment by
                      a Fund may cause Shareholders to bear duplicative fees.
                      The Advisor will waive its fees attributable to the assets
                      of the investing Fund invested in a money market fund of
                      HighMark, and, to the extent required by applicable law,
                      the Advisor will waive its fees attributable to the assets
                      of the Fund invested in any investment company. Some Funds
                      are subject to additional restrictions on investment in
                      other investment companies. See "INVESTMENT RESTRICTIONS"
                      in the Statement of Additional Information.
 
                        The Balanced Fund may write covered calls on its equity
                      securities and enter into closing transactions with
                      respect to covered call options.
 
                        The Fund may also buy and sell options, futures
                      contracts and options on futures. The Fund may enter into
                      futures contracts and options on futures only to the
                      extent that obligations under such contracts or
                      transactions, together with options on securities,
                      represent not more than 25% of the Fund's assets. The
 
                                        8
<PAGE>   132
 
                      aggregate value of options on securities (long puts and
                      calls) will not exceed 10% of the Fund's net assets at the
                      time such options are purchased by the Fund.
 
                        The Fund may purchase options in stock indices to invest
                      cash on an interim basis. The aggregate premium paid on
                      all options on stock indices cannot exceed 20% of the
                      Fund's total assets.
 
                        All of the common stocks in which the Balanced Fund
                      invests (including foreign securities in the form of ADRs
                      but not including Rule 144A Securities) are traded on
                      registered exchanges or in the over-the-counter market.
 
                        For further information, see "DESCRIPTION OF PERMITTED
                      INVESTMENTS."
 
                      Risk Factors

                        Like any investment program, investment in the Balanced
                      Fund entails certain risks. As with a fund investing
                      primarily in equity securities, the Balanced Fund is
                      subject to the risk that prices of equity securities, or
                      certain types of equity securities in which the Fund
                      invests, in general will decline over short or even
                      extended periods. Since the Fund's shares will fluctuate
                      in value, the Fund may be more suitable for long-term
                      investors who can bear the risk of short-term
                      fluctuations. In addition, the market value of
                      fixed-income securities bears an inverse relationship to
                      changes in market interest rates, which may affect the net
                      asset value of Shares. The longer the remaining maturity
                      of a security, the greater is the effect of interest rate
                      changes on its market value. Generally, because of their
                      fixed-income features, convertible securities will
                      fluctuate in value to a lesser degree than the common
                      stocks into which they are convertible. Changes in the
                      value of a Fund's fixed-income securities will not affect
                      cash income received from ownership of such securities,
                      but will affect a Fund's net asset value.
 
                        Because the Balanced Fund also invests in debt
                      securities, investors in the Balanced Fund are also
                      exposed to credit risk, which relates to the ability of an
                      issuer to make payments of principal and interest, and
                      market risk, which relates to changes in a security's
                      value as a result of interest rate changes generally. An
                      increase in interest rates will generally reduce the value
                      of the investments in the Balanced Fund and a decline in
                      interest rates will generally increase the value of those
                      investments. Accordingly, the net asset value of the
                      Fund's shares will vary as a result of changes in the
                      value of the securities in the Fund's portfolio.
                      Therefore, an investment in the Fund may decline in value,
                      resulting in a loss of principal. Because interest rates
                      vary, it is impossible to predict the income or yield of
                      the Fund for any particular period. While debt securities
                      normally fluctuate less in price than equity securities,
                      there have been extended periods of cyclical increases in
                      interest rates that have caused significant declines in
                      debt securities prices. Certain fixed-income securities
                      which may be purchased by the
 
                                        9
<PAGE>   133
 
                      Balanced Fund such as zero-coupon obligations,
                      mortgage-backed and asset-backed securities, and
                      collateralized mortgage obligations ("CMOs") will have
                      greater price volatility then other fixed-income
                      obligations. Because declining interest rates may lead to
                      prepayment of underlying mortgages, automobile sales
                      contracts or credit card receivables, the prices of
                      mortgage-related and asset-backed securities may not rise
                      with a decline in interest rates. Mortgage-backed and
                      asset-backed securities and CMOs are extremely sensitive
                      to the rate of principal prepayment. Similarly, callable
                      corporate bonds also present risk of prepayment. During
                      periods of falling interest rates, securities that can be
                      called or prepaid may decline in value relative to similar
                      securities that are not subject to call or prepayment.
 
                        Depending upon prevailing market conditions, the
                      Balanced Fund may purchase debt securities at a discount
                      from face value, which produces a yield greater than the
                      coupon rate. Conversely, if debt securities are purchased
                      at premium over face value, the yield will be lower than
                      the coupon rate. In making investment decisions, the
                      Advisor will consider many factors other than current
                      yield, including the preservation of capital, the
                      potential for realizing capital appreciation, maturity,
                      and yield to maturity. From time to time, the equity and
                      debt markets may fluctuate independently of one another.
                      In other words, a decline in equity markets may in certain
                      instances be offset by a rise in debt markets, or vice
                      versa. As a result, the Balanced Fund, with its balance of
                      equity and debt investments, may entail less investment
                      risk (and a potentially smaller investment return) than a
                      mutual fund investing primarily in equity securities.
 
                        As described above, the Balanced Fund may invest in debt
                      securities within the four highest rating categories
                      assigned by a NRSRO and comparable unrated securities.
                      Securities rated BBB by S&P or Baa by Moody's are
                      considered investment grade, but are deemed by these
                      rating services to have some speculative characteristics,
                      and adverse economic conditions or other circumstances are
                      more likely to lead to a weakened capacity to make
                      principal and interest payments than is the case with
                      higher-grade bonds. Should subsequent events cause the
                      rating of a debt security purchased by the Balanced Fund
                      to fall below the fourth highest rating category, the
                      Advisor will consider such an event in determining whether
                      the Balanced Fund should continue to hold that security.
                      In no event, however, would the Balanced Fund be required
                      to liquidate any such portfolio security where the
                      Balanced Fund would suffer a loss on the sale of such
                      security.
 
                        The Balanced Fund may invest in convertible securities,
                      which include corporate bonds, notes or preferred stocks
                      that can be converted into common stocks or other equity
                      securities. Convertible securities also include other
                      securities, such as warrants, that provide an opportunity
                      for equity participation. Because convertible
 
                                       10
<PAGE>   134
 
                      securities can be converted into common stock, their
                      values will normally vary in some proportion with those of
                      the underlying common stock. Convertible securities
                      usually provide a higher yield than the underlying common
                      stock, however, so that the price decline of a convertible
                      security may sometimes be less substantial than that of
                      the underlying common stock. The value of convertible
                      securities that pay dividends or interest, like the value
                      of all fixed-income securities, generally fluctuates
                      inversely with changes in interest rates. Warrants have no
                      voting rights, pay no dividends and have no rights with
                      respect to the assets of the corporation issuing them.
                      They do not represent ownership of the securities for
                      which they are exercisable, but only the right to buy such
                      securities at a particular price. The Balanced Fund will
                      not purchase any convertible debt security or convertible
                      preferred stock unless it has been rated as investment
                      grade at the time of acquisition by a NRSRO or that is not
                      rated but is determined to be of comparable quality by the
                      Advisor.
 
                        The Balanced Fund may invest in securities issued or
                      guaranteed by foreign corporations or foreign governments,
                      their political subdivisions, agencies or
                      instrumentalities and obligations of supranational
                      entities such as the World Bank and the Asian Development
                      Bank. Any investments in these securities will be in
                      accordance with the Fund's investment objective and
                      policies, and are subject to special risks, such as
                      adverse political and economic developments, possible
                      seizure, nationalization or expropriation of foreign
                      investments, less stringent disclosure requirements,
                      changes in foreign currency exchange rates, increased
                      costs associated with the conversion of foreign currency
                      into U.S. dollars, the possible establishment of exchange
                      controls or taxation at the source or the adoption of
                      other foreign governmental restrictions. To the extent
                      that the Fund may invest in securities of foreign issuers
                      that are not traded on any exchange, there is a further
                      risk that these securities may not be readily marketable.
                      The Balanced Fund will not hold foreign currency for
                      investment purposes.
 
INVESTMENT
LIMITATIONS             The Balanced Fund may not:
 
                        1) Purchase securities of any one issuer, other than
                      obligations issued or guaranteed by the U.S. Government,
                      its agencies, or instrumentalities, if, immediately after
                      the purchase, more than 5% of the value of the Fund's
                      total assets would be invested in the issuer or the Fund
                      would hold more than 10% of any class of securities of the
                      issuer or more than 10% of the issuer's outstanding voting
                      securities (except that up to 25% of the value of the
                      Fund's total assets may be invested without regard to
                      these limitations);
 
                        2) Purchase any securities that would cause more than
                      25% of the Fund's total assets at the time of purchase to
                      be invested in securities of one or more issuers
                      conducting their principal business activities in the same
                      industry, provided that (a) there is no limitation with
                      respect to obligations issued or guaranteed by the
 
                                       11
<PAGE>   135
 
                      U.S. or foreign governments or their agencies or
                      instrumentalities and repurchase agreements secured by
                      obligations of the U.S. Government or its agencies or
                      instrumentalities; (b) wholly owned finance companies will
                      be considered to be in the industries of their parents if
                      their activities are primarily related to financing the
                      activities of their parents; and (c) utilities will be
                      divided according to their services (for example, gas, gas
                      transmission, electric and gas, electric, and telephone
                      will each be considered a separate industry);
 
                        3) Make loans, except that the Fund may purchase or hold
                      debt instruments, lend portfolio securities, and enter
                      into repurchase agreements in accordance with its
                      investment objective and policies.
 
                        The foregoing percentages will apply at the time of the
                      purchase of a security. The investment limitations listed
                      above are fundamental policies the substance of which may
                      not be changed without a vote of a majority of the
                      outstanding Shares of the Fund. Additional fundamental and
                      non-fundamental investment limitations are set forth in
                      the Statement of Additional Information.
 
                      Portfolio Turnover

                        The Fund's portfolio turnover rate will not be a factor
                      preventing a sale or purchase when the Advisor believes
                      investment considerations warrant. The Fund's portfolio
                      turnover rate may vary greatly from year to year as well
                      as within a particular year. High portfolio turnover rates
                      generally will result in correspondingly higher brokerage
                      and other transactions costs to the Fund and could involve
                      the realization of capital gains that would be taxable
                      when distributed to Shareholders of the Fund. See FEDERAL
                      TAXATION.
 
PURCHASE AND
REDEMPTION
OF SHARES               As noted above, the Fund is divided into two classes of
                      Shares, Retail and Fiduciary. Fiduciary Shares may be
                      purchased at net asset value. Only the following investors
                      qualify to purchase the Balanced Fund's Fiduciary Shares:
                      (i) fiduciary, advisory, agency, custodial and other
                      similar accounts maintained with Union Bank of California,
                      N.A. or its affiliates; (ii) SelectIRA accounts
                      established with The Bank of California, N.A. and invested
                      in any of HighMark's Equity or Income Funds prior to June
                      20, 1994, which have remained continuously open thereafter
                      and which are not considered to be fiduciary accounts;
                      (iii) Shareholders who currently own Shares of HighMark's
                      Equity or Income Funds that were purchased prior to June
                      20, 1994 within an account registered in their name with
                      the Funds. For a description of investors who qualify to
                      purchase Retail Shares, see the Retail Shares prospectus
                      of the Balanced Fund; and (iv) present and retired
                      directors, officers and employees (and their spouses and
                      children under the age of 21 of Union Bank of California,
                      N.A., HighMark's current or former distributors or their
                      respective affiliated companies who cur-
 
                                       12
<PAGE>   136
 
                      rently own Shares of HighMark Funds which were purchased
                      before April 30, 1997.
 
                        Purchases and redemptions of Shares of the Balanced Fund
                      may be made on days on which both the New York Stock
                      Exchange and Federal Reserve wire system are open for
                      business ("Business Days"). The minimum initial investment
                      is generally $1,000 and the minimum subsequent investment
                      is generally only $100. For present and retired directors,
                      officers, and employees (and their spouses and children
                      under the age of 21) of Union Bank of California, SEI
                      Financial Services Company and their affiliates, the
                      minimum initial investment is $250 and the minimum
                      subsequent investment is $50. The Fund's initial and
                      subsequent minimum purchase amounts may be waived if
                      purchases are made in connection with Individual
                      Retirement Accounts, Keoghs, payroll deduction plans, or
                      401(k) or similar plans. However, the minimum investment
                      may be waived in the Distributor's discretion.
                      Shareholders may place orders by telephone.
 
                        Purchase orders will be effective if the Distributor
                      receives an order before 1:00 p.m., Pacific time (4:00
                      p.m., Eastern time) and the custodian receives Federal
                      funds before the close of business on the next Business
                      Day. The purchase price of Shares of a Fund is the net
                      asset value next determined after a purchase order is
                      received and accepted by HighMark. The net asset value per
                      Share of a Fund is determined by dividing the total market
                      value of a Fund's investments and other assets, less any
                      liabilities, by the total number of outstanding Shares of
                      a Fund. Net asset value per share is determined daily as
                      of 1:00 p.m., Pacific time (4:00 p.m., Eastern time) on
                      any Business Day. Purchases will be made in full and
                      fractional shares of HighMark calculated to three decimal
                      places. HighMark reserves the right to reject a purchase
                      order when the Distributor determines that it is not in
                      the best interest of HighMark and/or its Shareholders to
                      accept such order.
 
                        Shares of the Balanced Fund are offered only to
                      residents of states in which the shares are eligible for
                      purchase.
 
                        Shareholders who desire to redeem shares of HighMark
                      must place their redemption orders prior to 1:00 p.m.,
                      Pacific time (4:00 p.m., Eastern time), on any Business
                      Day for the order to be accepted on that Business Day. The
                      redemption price is the net asset value of the Fund next
                      determined after receipt by the Distributor of the
                      redemption order. Payment on redemption will be made as
                      promptly as possible and, in any event, within seven
                      calendar days after the redemption order is received. The
                      Fund reserves the right to make payment for redemptions in
                      securities rather than cash.
 
                                       13
<PAGE>   137
 
                        Neither HighMark's transfer agent nor HighMark will be
                      responsible for any loss, liability, cost or expense for
                      acting upon wire instructions or upon telephone
                      instructions that it reasonably believes to be genuine.
                      HighMark and its transfer agent will each employ
                      reasonable procedures to confirm that telephone
                      instructions are genuine. Such procedures may include
                      taping of telephone conversations. If market conditions
                      are extraordinarily active or other extraordinary
                      circumstances exist, and you experience difficulties
                      placing redemption orders by telephone, you may wish to
                      consider placing your order by other means.
 
EXCHANGE
PRIVILEGES              As indicated under GENERAL INFORMATION--Description of
                      HighMark & Its Shares, certain of HighMark's Funds issue
                      two classes of Shares (Retail Shares and Fiduciary
                      Shares); as of the date of this Prospectus, the
                      Distribution Plan and distribution fee payable thereunder
                      are applicable only to such Fund's Retail Shares. A
                      Shareholder's eligibility to exchange into a particular
                      class of Shares will be determined at the time of the
                      exchange. The Shareholder must supply, at the time of the
                      exchange, the necessary information to permit confirmation
                      of qualification.
 
                        Each Fund's Shares may be exchanged for Shares of the
                      class of the various other Funds of HighMark which the
                      Shareholder qualifies to purchase directly so long as the
                      Shareholder maintains the applicable minimum account
                      balance in each Fund in which he or she owns Shares and
                      satisfies the minimum initial and subsequent purchase
                      amounts of the Fund into which the Shares are exchanged.
                      Shareholders may exchange their Fiduciary Shares for
                      Fiduciary Shares of another Fund on the basis of the
                      relative net asset value of the Fiduciary Shares
                      exchanged. Shareholders may also exchange Fiduciary Shares
                      of a Fund for Retail Shares of another Fund. Under such
                      circumstances, the cost of the acquired Retail Shares will
                      be the net asset value per share plus the appropriate
                      sales load.
 
                        Exchanges will be made on the basis of the relative net
                      asset values of the Shares exchanged plus any applicable
                      sales charge. Exchanges are subject to the terms and
                      conditions stated herein and the terms and conditions
                      stated in the respective prospectuses of the Funds.
 
                        Certain entities (including participating organizations
                      and Union Bank of California and its affiliates), however,
                      may charge customers a fee with respect to exchanges made
                      on the customer's behalf. Information about these charges,
                      if any, can be obtained by the entity effecting the
                      exchange and this Prospectus should be read in conjunction
                      with that information.
 
                        A Shareholder wishing to exchange Shares in the Balanced
                      Fund may do so by contacting the transfer agent at
                      1-800-433-6884. Exchanges will be effected on
 
                                       14
<PAGE>   138
 
                      any Business Day at the net asset value of the Funds
                      involved in the exchange next determined after the
                      exchange request is received by the transfer agent.
 
                        An exchange is considered to be a sale of Shares for
                      federal income tax purposes on which a Shareholder may
                      realize a capital gain or loss. Exchange privileges may be
                      exercised only in those states where Shares of such other
                      Funds of HighMark may legally be sold. HighMark may
                      materially amend or terminate the exchange privileges
                      described herein upon sixty days' notice.
 
DIVIDENDS               The net income of the Balanced Fund is declared and paid
                      monthly as a dividend to Shareholders of record at the
                      close of business on the day of declaration. Net realized
                      capital gains are distributed at least annually to
                      Shareholders of record.
 
                        Shareholders will automatically receive all income
                      dividends and capital gains distributions in additional
                      full and fractional Shares of the Fund at net asset value
                      as of the date of declaration (which is also the
                      ex-dividend date), unless the Shareholder elects to
                      receive such dividends or distributions in cash.
                      Shareholders wishing to receive their dividends in cash
                      (or wishing to revoke a previously made election) must
                      notify the transfer agent at P.O. Box 8416, Boston, MA
                      02266-8416, and such election (or revocation thereof) will
                      become effective with respect to dividends and
                      distributions having record dates after notice has been
                      received. Dividends paid in additional Shares receive the
                      same tax treatment as dividends paid in cash.
 
FEDERAL
TAXATION                The Balanced Fund intends to qualify for treatment as a
                      "regulated investment company" under the Internal Revenue
                      Code of 1986, as amended (the "Code"), and to distribute
                      substantially all of its net investment income and net
                      realized capital gains so that the Fund is not required to
                      pay federal taxes on these amounts.
 
                        Distributions of ordinary income and/or an excess of net
                      short-term capital gain over net long-term capital loss
                      are treated for federal income tax purposes as ordinary
                      income to Shareholders. The 70 percent dividends received
                      deduction for corporations generally will apply to these
                      distributions to the extent the distribution represents
                      amounts that would qualify for the dividends received
                      deduction when received by the Fund if the Fund were a
                      regular corporation, and to the extent designated by the
                      Fund as so qualifying. Distributions by the Fund of the
                      excess of net long-term capital gain over net short-term
                      capital loss is taxable to Shareholders as long-term
                      capital gain in the year with respect to which it is
                      received, regardless of how long the Shareholder has held
                      Shares of the Fund. Such distributions are not eligible
                      for the dividends received deduction. If a Shareholder
                      disposes of Shares in the Fund at a loss before holding
                      such Shares for longer than six months, such loss will be
                      treated as a long-term capital
 
                                       15
<PAGE>   139
 
                      loss to the extent the Shareholder has received long-term
                      capital gain dividends on the Shares.
 
                        Prior to purchasing Shares of the Balanced Fund, the
                      impact of dividends or capital gain distributions that are
                      expected to be declared or have been declared, but not
                      paid, should be carefully considered. Dividends or capital
                      gain distributions received after a purchase of Shares are
                      subject to federal income taxes, although in some
                      circumstances, the dividends or distributions may be, as
                      an economic matter, a return of capital to the
                      Shareholder. A Shareholder should consult his or her
                      advisor for specific advice about the tax consequences to
                      the Shareholder of investing in the Fund.
 
                        Fund investments in foreign securities may be subject to
                      withholding taxes at the source on dividend or interest
                      payments. In that case, the Fund's yield on those
                      securities would be decreased. The Fund does not expect to
                      be eligible to elect to permit shareholders to claim a
                      credit or deduction on their income tax return for their
                      pro rata share of such taxes.
 
                        Fund transactions in foreign currencies and hedging
                      activities may give rise to ordinary income or loss to the
                      extent such income or loss results from fluctuations in
                      value of the foreign currency concerned. In addition, such
                      activities will likely produce a difference between book
                      income and taxable income. This difference may cause a
                      portion of the Fund's income distributions to constitute a
                      return of capital for tax purposes or require the Fund to
                      make distributions exceeding book income to qualify as a
                      regulated investment company for tax purposes.
 
                        Investment in an entity that qualifies as a "passive
                      foreign investment company" under the Code could subject
                      the Fund to a U.S. federal income tax or other charge on
                      certain "excess distributions" received with respect to
                      the investment, and on the proceeds from disposition of
                      the investment.
 
                        Additional information regarding federal taxes is
                      contained in the Statement of Additional Information.
                      However, the foregoing and the material in the Statement
                      of Additional Information are only brief summaries of some
                      of the important tax considerations generally affecting
                      the Fund and its Shareholders. In addition, the foregoing
                      discussion and the federal tax information in the
                      Statement of Additional Information are based on tax laws
                      and regulations which are in effect as of the date of this
                      Prospectus; these laws and regulations may subsequently
                      change, and such changes could be retroactive.
 
                        Shareholders will be advised at least annually as to the
                      federal income tax status of distributions made during the
                      year.
 
                                       16
<PAGE>   140
 
SERVICE
ARRANGEMENTS          The Advisor

                        Pacific Alliance Capital Management, a division of Union
                      Bank of California, N.A. serves as the Balanced Fund's
                      investment advisor. Subject to the general supervision of
                      HighMark's Board of Trustees, the Advisor manages the Fund
                      in accordance with its investment objective and policies,
                      makes decisions with respect to and places orders for all
                      purchases and sales of the Fund's investment securities,
                      and maintains the Fund's records relating to such
                      purchases and sales.
 
                        For the expenses assumed and services provided by the
                      Advisor as the Fund's investment advisor, Union Bank of
                      California receives a fee from the Balanced Fund, computed
                      daily and paid monthly, at the annual rate of sixty one-
                      hundredths of one percent (.60%) of the Fund's average
                      daily net assets. This fee may be higher than the advisory
                      fee paid by most mutual funds, although the Board of
                      Trustees believes it will be comparable to advisory fees
                      paid by many funds having similar objectives and policies.
                      Union Bank of California may from time to time agree to
                      voluntarily reduce its advisory fee, however, it is not
                      currently doing so. While there can be no assurance that
                      Union Bank of California will choose to make such an
                      agreement, any voluntary reductions in Union Bank of
                      California's advisory fee will lower the Fund's expenses,
                      and thus increase the Fund's yield and total return,
                      during the period such voluntary reductions are in effect.
                      During HighMark's fiscal year ended July 31, 1996, Union
                      Bank of California received investment advisory fees from
                      the Balanced Fund aggregating 0.54% of the Fund's average
                      daily net assets.
 
                        On April 1, 1996, the Bank of California, N.A.,
                      HighMark's then investment advisor, combined with Union
                      Bank and the resulting bank changed its name to Union Bank
                      of California, N.A. At the same time, the banks'
                      investment management divisions were combined. Each of
                      Union Bank and The Bank of California, N.A. (or their
                      predecessor banks) has been in banking since the early
                      1900's and, historically, each has had significant
                      investment functions within its trust and investment
                      division. UnionBanCal Corporation, the parent of Union
                      Bank of California, N.A., is a publicly held corporation,
                      but is principally held by The Bank of Tokyo-Mitsubishi,
                      Ltd. As of September 30, 1996, Union Bank of California
                      and its subsidiaries had approximately $28.7 billion in
                      commercial assets. Pacific Alliance Capital Management is
                      a division of Union Bank of California's Trust and
                      Investment Management Group which, as of June 30, 1996,
                      had approximately $13.4 billion of assets under
                      management. The Advisor, with a team of approximately 45
                      stock and bond research analysts, portfolio managers and
                      traders, has been providing investment management services
                      to individuals, institutions and large corporations since
                      1917.
 
                        All investment decisions for the Balanced Fund are made
                      by a team of investment professionals, all of whom take an
                      active part in the decision making
 
                                       17
<PAGE>   141
 
                      process. The team leader for the Balanced Fund is Carl J.
                      Colombo. Mr. Colombo is a Vice-President of the Advisor,
                      and has served as team leader for the Stepstone Balanced
                      and Growth Equity Funds. Mr. Colombo has been with the
                      Advisor and its predecessor, Union Bank, since 1985.
 
                      Administrator

                        SEI Fund Resources (the "Administrator") and HighMark
                      are parties to an administration agreement (the
                      "Administration Agreement"). Under the terms of the
                      Administration Agreement, the Administrator provides
                      HighMark with certain management services, including all
                      necessary office space, equipment, personnel, and
                      facilities.
 
                        The Administrator is entitled to a fee, which is
                      calculated daily and paid monthly, at an annual rate of
                      .20% of the average daily net assets of the Funds. The
                      Administrator may waive its fee or reimburse various
                      expenses to the extent necessary to limit the total
                      operating expenses of a Fund's Fiduciary Shares. Any such
                      waiver is voluntary and may be terminated at any time in
                      the Administrator's sole discretion. Currently, the
                      Administrator has agreed to waive its fee to the rate of
                      .18% of the average daily net assets of the Funds.
 
                        Pursuant to a separate agreement with the Administrator,
                      Union Bank of California, N.A. performs sub-administration
                      services on behalf of the Fund, for which it receives a
                      fee paid by the Administrator at the annual rate of up to
                      0.05% of the average daily net assets of the Fund. Union
                      Bank of California has voluntarily agreed to reduce this
                      fee to 0.03%, but reserves the right to terminate its
                      waiver at any time in its sole discretion. A description
                      of the services performed by Union Bank of California
                      pursuant to this Agreement is contained in the Statement
                      of Additional Information.
 
                      The Transfer Agent

                        State Street Bank and Trust Company serves as the
                      transfer agent, dividend disbursing agent, and as a
                      shareholder servicing agent for the Fiduciary Shares of
                      HighMark, for which services it receives a fee.
 
                      Shareholder Service Plan

                        To support the provision of Shareholder services to both
                      classes of Shares, HighMark has adopted a Shareholder
                      Service Plan. A description of the services performed by
                      service providers pursuant to the Shareholder Service Plan
                      is contained in the Statement of Additional Information.
                      In consideration of services provided by any service
                      provider, which may include Union Bank of California,
                      N.A., Bank of Tokyo-Mitsubishi, Ltd., or their respective
                      affiliates, the Fund may pay a fee at the rate of up to
                      0.25% of its average daily net assets to such service
                      provider. The service provider may waive such fees at any
                      time. Any
 
                                       18
<PAGE>   142
 
                      such waiver is voluntary and may be terminated at any
                      time. Currently, such fees are being waived to the rate of
                      0.09% of average daily net assets.
 
                      Distributor

                        SEI Financial Services Company (the "Distributor") and
                      HighMark are parties to a distribution agreement
                      ("Distribution Agreement"). The Distribution Agreement is
                      renewable annually and may be terminated by the
                      Distributor, by a majority vote of the Disinterested
                      Trustees or by a majority vote of the outstanding
                      securities of HighMark upon not more than 60 days written
                      notice by either party, or upon assignment by the
                      Distributor. Fiduciary Shares are not subject to
                      HighMark's Distribution Plan or a distribution fee.
 
                      Banking Laws

                        Union Bank of California believes that it may perform
                      the services for the Fund contemplated by its investment
                      advisory agreement with HighMark without a violation of
                      applicable banking laws and regulations. Union Bank of
                      California also believes that it may perform
                      sub-administration and sub-accounting services on behalf
                      of the Fund without a violation of applicable banking laws
                      and regulations. Future changes in federal or state
                      statutes and regulations relating to permissible
                      activities of banks or bank holding companies and their
                      subsidiaries and affiliates, as well as further judicial
                      or administrative decisions or interpretations of present
                      and future statutes and regulations, could change the
                      manner in which Union Bank of California or the Advisor
                      could continue to perform such services for the Fund. For
                      a further discussion of applicable banking laws and
                      regulations, see the Statement of Additional Information.
 
                      Custodian

                        Union Bank of California also serves as the custodian
                      and as a shareholder servicing agent for the Balanced
                      Fund. The Custodian holds cash, securities and other
                      assets of HighMark as required by the 1940 Act.
 
                        Services performed by Union Bank of California, as the
                      Fund's shareholder servicing agent and custodian, as well
                      as the basis of remuneration for such services, are
                      described in the Statement of Additional Information.
 
GENERAL
INFORMATION           Description of HighMark & Its Shares

                        HighMark was organized as a Massachusetts business trust
                      on March 10, 1987, and consists of sixteen series of
                      Shares open for investment representing units of
                      beneficial interest in HighMark's Growth Fund, Income
                      Equity Fund, Balanced Fund, Value Momentum Fund, Blue Chip
                      Growth Fund, Emerging Growth Fund, International Equity
                      Fund, Bond Fund, Intermediate-Term Bond Fund, Government
                      Securities Fund, Convertible Securities Fund, California
                      Intermediate Tax-Free Bond Fund, Diversified Money Market
                      Fund, U.S. Government
 
                                       19
<PAGE>   143
 
                      Obligations Money Market Fund, 100% U.S. Treasury
                      Obligations Money Market Fund, and California Tax-Free
                      Money Market Fund. As of the date hereof, no Shares of the
                      Value Momentum Fund, the Blue Chip Growth Fund, the
                      Emerging Growth Fund, the International Equity Fund, the
                      Intermediate-Term Bond Fund, the Convertible Securities
                      Fund, the Government Securities Fund and the California
                      Intermediate Tax-Free Bond Fund had been offered for sale
                      in HighMark Funds. Shares of each Fund are freely
                      transferable, are entitled to distributions from the
                      assets of the Fund as declared by the Board of Trustees,
                      and, if HighMark were liquidated, would receive a pro rata
                      share of the net assets attributable to that Fund. Shares
                      are without par value.
 
                        As noted above, pursuant to a Multiple Class Plan on
                      file with the Securities and Exchange Commission
                      permitting the issuance and sale of two classes of Shares
                      in selected Funds, Shares of such Funds have been divided
                      into two classes, designated Retail Shares and Fiduciary
                      Shares. For information regarding the Retail Shares of the
                      Balanced Fund, interested persons may contact the
                      Distributor for a prospectus at 1-800-433-6884.
 
                        HighMark believes that as of November 22, 1996, Union
                      Bank of California (475 Sansome Street, Post Office Box
                      45000, San Francisco, CA 94104) was the Shareholder of
                      record of 97.91% of the Fiduciary Shares of the Balanced
                      Fund.
 
                      Performance Information

                        From time to time, HighMark may advertise the aggregate
                      total return, average annual total return, yield and
                      distribution rate with respect to the Fiduciary Shares of
                      the Balanced Fund. Performance information is computed
                      separately for the Fund's Retail and Fiduciary Shares in
                      accordance with the formulas described below.
 
                        The aggregate total return and average annual total
                      return of the Fund may be quoted for the life of the Fund
                      and for ten-year, five-year, three-year and one-year
                      periods, in each case through the most recent calendar
                      quarter. Aggregate total return is determined by
                      calculating the change in the value of a hypothetical
                      $1,000 investment in the Fund over the applicable period
                      that would equate the initial amount invested to the
                      ending redeemable value of the investment. The ending
                      redeemable value includes dividends and capital gain
                      distributions reinvested at net asset value. Average
                      annual total return is calculated by annualizing the
                      Fund's aggregate total return over the relevant number of
                      years. The resulting percentage indicates the average
                      positive or negative investment results that an investor
                      in the Fund would have experienced on an annual basis from
                      changes in Share price and reinvestment of dividends and
                      capital gain distributions.
 
                        The yield of the Fund is determined by annualizing the
                      net investment income per Share of the Fund during a
                      specified thirty-day period and dividing that
 
                                       20
<PAGE>   144
 
                      amount by the per Share public offering price of the Fund
                      on the last day of the period.
 
                        The distribution rate of the Fund is determined by
                      dividing the income and capital gains distributions, or
                      where indicated the income distributions alone, on a Share
                      of the Fund over a twelve-month period by the per Share
                      public offering price of the Fund on the last day of the
                      period.
 
                        Each Fund may periodically compare its performance to
                      the performance of other mutual funds tracked by mutual
                      fund rating services (such as Lipper Analytical);
                      financial and business publications and periodicals; broad
                      groups of comparable mutual funds; unmanaged indices which
                      may assume investment of dividends but generally do not
                      reflect deductions for administrative and management
                      costs; or other investment alternatives. Certain Funds may
                      advertise performance that includes results from periods
                      in which the Fund's assets were managed in a
                      non-registered predecessor vehicle.
 
                        All performance information presented for the Fund is
                      based on past performance and does not predict future
                      performance.
 
                      Miscellaneous

                        Shareholders will be sent unaudited semi-annual reports
                      and annual reports audited by independent public
                      accountants.
 
                        Shareholders are entitled to one vote for each Share
                      held in a Fund as determined on the record date for any
                      action requiring a vote by the Shareholders, and a
                      proportionate fractional vote for each fractional Share
                      held. Shareholders of HighMark will vote in the aggregate
                      and not by series or class except (i) as otherwise
                      expressly required by law or when HighMark's Board of
                      Trustees determines that the matter to be voted upon
                      affects only the interests of the Shareholders of a
                      particular series or particular class, and (ii) only
                      Retail Shares will be entitled to vote on matters
                      submitted to a Shareholder vote relating to the
                      Distribution Plan. HighMark is not required to hold
                      regular annual meetings of Shareholders, but may hold
                      special meetings from time to time.
 
                        HighMark's Trustees are elected by Shareholders, except
                      that vacancies may be filled by vote of the Board of
                      Trustees. Trustees may be removed by the Board of
                      Trustees, or by Shareholders at a meeting called for such
                      purpose. For information about how Shareholders may call
                      such a meeting and communicate with other Shareholders for
                      that purpose, see ADDITIONAL INFORMATION--Miscellaneous in
                      the Statement of Additional Information.
 
                        Inquiries may be directed in writing to SEI Financial
                      Services Company, Oaks, Pennsylvania 19456, or by calling
                      toll free 1-800-433-6884.
 
                                       21
<PAGE>   145
 
DESCRIPTION OF
PERMITTED
INVESTMENTS             The following is a description of permitted investments
                      for the HighMark Balanced Fund.
 
                        AMERICAN DEPOSITARY RECEIPTS (ADRs) -- ADRs are receipts
                      typically issued by a U.S. financial institution that
                      evidence ownership of underlying securities issued by a
                      foreign issuer.
 
                        ASSET-BACKED SECURITIES (NON-MORTGAGE) -- Instruments
                      secured by company receivables, truck and auto loans,
                      leases, and credit card receivables. Such securities are
                      generally issued as pass-through certificates, which
                      represent undivided fractional ownership interests in the
                      underlying pools of assets. Such securities also may be
                      debt instruments, which are also known as collateralized
                      obligations and are generally issued as the debt of a
                      special purpose entity, such as a trust, organized solely
                      for the purpose of owning such assets and issuing such
                      debt. The purchase of non-mortgage assetbacked securities
                      raises risk considerations peculiar to the financing of
                      the instruments underlying such securities. Assetbacked
                      securities entail prepayment risk, which may vary
                      depending on the type of asset, but is generally less than
                      the prepayment risk associated with mortgage-backed
                      securities.
 
                        Like mortgages underlying mortgage-backed securities,
                      underlying automobile sales contracts or credit card
                      receivables are subject to substantial prepayment risk,
                      which may reduce the overall return to certificate
                      holders. Nevertheless, principal prepayment rates tend not
                      to vary as much in response to changes in interest rates
                      and the short-term nature of the underlying car loans or
                      other receivables tend to dampen the impact of any change
                      in the prepayment level. Certificate holders may also
                      experience delays in payment on the certificates if the
                      full amounts due on underlying sales contracts or
                      receivables are not realized by the trust because of
                      unanticipated legal or administrative costs of enforcing
                      the contracts or because of depreciation or damage to the
                      collateral (usually automobiles) securing certain
                      contracts, or other factors. If consistent with their
                      investment objectives and policies, the Fund may invest in
                      other asset-backed securities that may be developed in the
                      future.
 
                        BANKERS' ACCEPTANCES -- Bills of exchange or time drafts
                      drawn on and accepted by commercial banks. They are used
                      by corporations to finance the shipment and storage of
                      goods and to furnish dollar exchange. Maturities are
                      generally six months or less.
 
                        CERTIFICATES OF DEPOSIT -- Negotiable interest-bearing
                      instruments with a specific maturity. Certificates of
                      deposit are issued by banks and savings and loan
                      institutions in exchange for the deposit of funds and
                      normally can be traded in the secondary market prior to
                      maturity.
 
                                       22
<PAGE>   146
 
                        COMMERCIAL PAPER -- Unsecured short-term promissory
                      notes issued by corporations and other entities.
                      Maturities on these issues vary from a few days to nine
                      months. Purchase of such instruments involves a risk of
                      default by the issuer.
 
                        CONVERTIBLE BONDS AND CONVERTIBLE PREFERRED
                      STOCK -- Convertible Bonds are bonds convertible into a
                      set number of shares of another form of security (usually
                      common stock) at a prestated price. Convertible bonds have
                      characteristics similar to both fixed-income and equity
                      securities. Convertible preferred stock is a class of
                      capital stock that pays dividends at a specified rate and
                      that has preference over common stock in the payment of
                      dividends and the liquidation of assets. Convertible
                      preferred stock is preferred stock exchangeable for a
                      given number of common stock shares, and has
                      characteristics similar to both fixed-income and equity
                      securities. Because of the conversion feature, the market
                      value of convertible bonds and convertible preferred stock
                      tend to move together with the market value of the
                      underlying stock. As a result, a Fund's selection of
                      convertible bonds and convertible preferred stock is
                      based, to a great extent, on the potential for capital
                      appreciation that may exist in the underlying stock. The
                      value of convertible bonds and convertible preferred stock
                      is also affected by prevailing interest rates, the credit
                      quality of the issuer and any call provisions.
 
                        DERIVATIVES -- Instruments whose value is derived from
                      an underlying contract, index or security, or any
                      combination thereof, including futures, options (e.g.,
                      puts and calls), options on futures, swap agreements, and
                      some mortgage-backed securities (CMOs, REMICs, IOs and
                      POs). See elsewhere in this "DESCRIPTION OF PERMITTED
                      INVESTMENTS" for discussions of these various instruments,
                      and see "INVESTMENT OBJECTIVES" and "INVESTMENT POLICIES"
                      for more information about any policies and limitations
                      applicable to their use.
 
                        FUTURES AND OPTIONS ON FUTURES -- Some futures
                      strategies, including selling futures, buying puts and
                      writing calls, reduce a Fund's exposure to price
                      fluctuations. Other strategies, including buying futures,
                      writing puts and buying calls, tend to increase market
                      exposure. Futures and options may be combined with each
                      other in order to adjust the risk and return
                      characteristics of the overall portfolio.
 
                        Options and futures can be volatile instruments, and
                      involve certain risks that, if applied at an inappropriate
                      time, could negatively impact a Fund's return.
 
                        INVESTMENT GRADE BONDS -- Interest-bearing or discounted
                      government or corporate securities that obligate the
                      issuer to pay the bondholder a specified sum of money,
                      usually at specific intervals, and to repay the principal
                      amount of the loan at maturity. Investment grade bonds are
                      those rated BBB or
 
                                       23
<PAGE>   147
 
                      better by S&P or Baa or better by Moody's or similarly
                      rated by other NRSROs, or, if not rated, determined to be
                      of comparable quality by the Advisor.
 
                        MONEY MARKET INSTRUMENTS -- Short-term, debt instruments
                      or deposits and may include, for example, (i) commercial
                      paper rated within the highest rating category by a NRSRO
                      at the time of investment, or, if not rated, determined by
                      the Advisor to be of comparable quality; (ii) obligations
                      (certificates of deposit, time deposits, bank master
                      notes, and bankers' acceptances) of thrift institutions,
                      savings and loans, U.S. commercial banks (including
                      foreign branches of such banks), and U.S. and foreign
                      branches of foreign banks, provided that such institutions
                      (or, in the case of a branch, the parent institution) have
                      total assets of $1 billion or more as shown on their last
                      published financial statements at the time of investment;
                      (iii) short-term corporate obligations rated within the
                      three highest rating categories by a NRSRO (e.g., at least
                      A by S&P or A by Moody's) at the time of investment, or,
                      if not rated, determined by the Advisor to be of
                      comparable quality; (iv) general obligations issued by the
                      U.S. Government and backed by its full faith and credit,
                      and obligations issued or guaranteed as to principal and
                      interest by agencies or instrumentalities of the U.S.
                      Government (e.g., obligations issued by Farmers Home
                      Administration, Government National Mortgage Association,
                      Federal Farm Credit Bank and Federal Housing
                      Administration); (v) receipts, including TRs, TIGRs and
                      CATS; (vi) repurchase agreements involving such
                      obligations; (vii) loan participations issued by a bank in
                      the United States with assets exceeding $1 billion and for
                      which the underlying loan is issued by borrowers in whose
                      obligations the Fund may invest; (viii) money market funds
                      and (ix) foreign commercial paper.
 
                        Certain of the obligations in which a Fund may invest
                      may be variable or floating rate instruments, may involve
                      conditional or unconditional demand features and may
                      include variable amount master demand notes.
 
                        MORTGAGE-BACKED SECURITIES -- Securities generally
                      issued or guaranteed by U.S. government agencies such as
                      GNMA, FNMA, or FHLMC. GNMA mortgage-backed certificates
                      are mortgage-backed securities of the modified
                      pass-through type, which means that both interest and
                      principal payments (including prepayments) are passed
                      through monthly to the holder of the certificate. Each
                      GNMA certificate evidences an interest in a specific pool
                      of mortgage loans insured by the Federal Housing
                      Administration or the Farmers Home Administration or
                      guaranteed by the Veterans Administration. FNMA, a
                      federally-chartered and stockholder-owned corporation,
                      issues pass-through certificates which are guaranteed as
                      to payment of principal and interest by FNMA. FHLMC, a
                      corporate instrumentality of the United States, issues
                      participation certificates which represent an interest in
                      mortgages held in FHLMC's portfolio. FHLMC guarantees the
                      timely payment of interest and the ultimate collection of
 
                                       24
<PAGE>   148
 
                      principal. Securities issued or guaranteed by FNMA and
                      FHLMC are not backed by the full faith and credit of the
                      United States. There can be no assurance that the U.S.
                      government would provide financial support to FNMA or
                      FHLMC if necessary in the future.
 
                        Although payments on certain mortgage-related securities
                      may be guaranteed by a third party or otherwise similarly
                      secured, the market value of such securities is not
                      secured and may fluctuate significantly because of changes
                      in interest rates and changes in prepayment levels. Thus,
                      for example, if a Fund purchases a mortgage-related
                      security at a premium, that portion may be lost if there
                      is a decline in the market value of the security whether
                      due to changes in interest rates or prepayments of the
                      underlying mortgage collateral. As with other
                      interest-bearing securities, the prices of
                      mortgage-related securities are inversely affected by
                      changes in interest rates. However, although the value of
                      a mortgage-related security may decline when interest
                      rates rise, the converse is not necessarily true because
                      in periods of declining interest rates the mortgages
                      underlying the securities are prone to prepayment which
                      results in amounts being available for reinvestment which
                      are likely to be invested at a lower interest rate. For
                      this and other reasons, the stated maturity of a
                      mortgage-related security may be shortened by unscheduled
                      prepayments on the underlying mortgages and, accordingly,
                      it is not possible to predict accurately the security's
                      return to a Fund. In addition, regular payments received
                      on mortgage-related securities include both interest and
                      principal. No assurance can be given as to the return a
                      Fund will receive when these amounts are reinvested. As a
                      consequence, mortgage-related securities may be a less
                      effective means of "locking in" interest rates than other
                      types of debt securities having the same stated maturity,
                      may have less potential for capital appreciation and may
                      be considered riskier investments as a result.
 
                        Adjustable rate mortgage securities ("ARMS") are
                      pass-through certificates representing ownership interests
                      in a pool of adjustable rate mortgages and the resulting
                      cash flow from those mortgages. Unlike conventional debt
                      securities, which provide for periodic (usually
                      semi-annual) payments of interest and payments of
                      principal at maturity or on specified call dates, ARMs
                      provide for monthly payments based on a pro rata share of
                      both periodic interest and principal payments and
                      prepayments of principal on the underlying mortgage pool
                      (less GNMA's, FNMA's, or FHLMC's fees and any applicable
                      loan servicing fees).
 
                        Collateralized mortgage obligations ("CMOs") are bonds
                      generally issued by single purpose, stand-alone finance
                      subsidiaries or trusts established by financial
                      institutions, government agencies, investment banks, or
                      other similar institutions, and collateralized by pools of
                      mortgage loans. Payments of principal and interest on the
                      collateral mortgages are used to pay debt service on the
                      CMO. In a CMO,
 
                                       25
<PAGE>   149
 
                      a series of bonds or certificates is issued in multiple
                      classes. Each class of CMOs, often referred to as a
                      "tranche," is issued at a specific coupon rate and has a
                      stated maturity or final distribution date. The principal
                      and interest payment on the underlying mortgages may be
                      allocated among the classes of CMOs in several ways.
                      Typically, payments of principal, including any
                      prepayments, on the underlying mortgages would be applied
                      to the classes in the order of their respective stated
                      maturities or final distribution dates, so that no payment
                      of principal will be made on CMOs of a class until all
                      CMOs of other classes having earlier stated maturities or
                      final distribution dates have been paid in full.
 
                        One or more classes of CMOs may have coupon rates that
                      reset periodically based on an index, such as the London
                      Interbank Offered Rate ("LIBOR"). Each Fund may purchase
                      fixed, adjustable, or "floating" rate CMOs that are
                      collateralized by fixed rate or adjustable rate mortgages
                      that are guaranteed as to payment of principal and
                      interest by an agency or instrumentality of the U.S.
                      government or are directly guaranteed as to payment of
                      principal and interest by the issuer, which guarantee is
                      collateralized by U.S. government securities or is
                      collateralized by privately issued fixed rate or
                      adjustable rate mortgages.
 
                        Securities such as zero-coupon obligations,
                      mortgage-backed and asset-backed securities, and
                      collateralized mortgage obligations ("CMOs") will have
                      greater price volatility then other fixed-income
                      obligations. Because declining interest rates may lead to
                      prepayment of underlying mortgages, automobile sales
                      contracts or credit card receivables, the prices of
                      mortgage-related and asset-backed securities may not rise
                      with a decline in interest rates. Mortgage-backed and
                      asset-backed securities and CMOs are extremely sensitive
                      to the rate of principal prepayment. Similarly, callable
                      corporate bonds also present risk of prepayment. During
                      periods of falling interest rates, securities that can be
                      called or prepaid may decline in value relative to similar
                      securities that are not subject to call or prepayment.
 
                        Real Estate Mortgage Investment Conduits ("REMICs") are
                      private entities formed for the purpose of holding a fixed
                      pool of mortgages secured by an interest in real property.
                      REMICs are similar to CMOs in that they issue multiple
                      classes of securities.
 
                        OPTIONS -- Under a call option, the purchaser of the
                      option has the right to purchase, and the writer (the
                      Fund) the obligation to sell, the underlying security at
                      the exercise price during the option period. A put option
                      gives the purchaser the right to sell, and the writer the
                      obligation to purchase, the underlying security at the
                      exercise price during the option period.
 
                        In addition, certain Funds may buy options on stock
                      indices to invest cash on an interim basis. Such options
                      will be listed on a national securities exchange. In
 
                                       26
<PAGE>   150
 
                      order to close out an option position, a Fund may enter
                      into a "closing purchase transaction" -- the purchase of
                      an option on the same security with the same exercise
                      price and expiration date as the option contract
                      previously written on any particular security. When the
                      security is sold, a Fund effects a closing purchase
                      transaction so as to close out any existing option on that
                      security.
 
                        There are risks associated with such investments
                      including the following: (1) the success of a hedging
                      strategy may depend on the ability of the Advisor or
                      Sub-Advisor to predict movements in the prices of
                      individual securities, fluctuations in markets and
                      movements in interest rates; (2) there may be an imperfect
                      correlation between the movement in prices of securities
                      held by a Fund and the price of options; (3) there may not
                      be a liquid secondary market for options; and (4) while a
                      Fund will receive a premium when it writes covered call
                      options, it may not participate fully in a rise in the
                      market value of the underlying security.
 
                        RECEIPTS -- Interests in separately traded interest and
                      principal component parts of U.S. Treasury obligations
                      that are issued by banks and brokerage firms and are
                      created by depositing Treasury notes and Treasury bonds
                      into a special account at a custodian bank. The custodian
                      holds the interest and principal payments for the benefit
                      of the registered owners of the certificates of such
                      receipts. The custodian arranges for the issuance of the
                      certificates or receipts evidencing ownership and
                      maintains the register. Receipts include "Treasury
                      Receipts" ("TR's"), "Treasury Investment Growth Receipts"
                      ("TIGR's"), and "Certificates of Accrual on Treasury
                      Securities" ("CATS"). TR's, TIGR's and CATS are sold as
                      zero coupon securities, which means that they are sold at
                      a substantial discount and redeemed at face value at their
                      maturity date without interim cash payments of interest or
                      principal. This discount is accreted over the life of the
                      security, and such accretion will constitute the income
                      earned on the security for both accounting and tax
                      purposes. Because of these features, such securities may
                      be subject to greater interest rate volatility than
                      interest-paying securities. See also "FEDERAL TAXATION."
 
                        REPURCHASE AGREEMENTS -- Agreements whereby a Fund will
                      acquire securities from approved financial institutions or
                      registered broker-dealers that agree to repurchase the
                      securities at a mutually agreed-upon date and price. The
                      repurchase agreements entered into by the Funds will
                      provide that the underlying security at all times shall
                      have a value equal to 102% of the resale price stated in
                      the agreement. Repurchase agreements involving government
                      securities are not subject to a Fund's fundamental
                      investment limitation on purchasing securities of any one
                      issuer. If the seller defaults on its repurchase
                      obligation or becomes insolvent, the Fund holding such
                      obligations would suffer a loss to the extent that either
                      the proceeds from a sale of the underlying portfolio
                      securities were less than the repurchase price or the
                      Fund's disposition of the securities was delayed
 
                                       27
<PAGE>   151
 
                      pending court action. Securities subject to repurchase
                      agreements will be held by a qualified custodian or in the
                      Federal Reserve/Treasury book-entry system. Repurchase
                      agreements are considered to be loans by a Fund under the
                      Investment Company Act of 1940 (the "1940 Act").
 
                        REVERSE REPURCHASE AGREEMENTS -- A Fund may borrow funds
                      for temporary purposes by entering into reverse repurchase
                      agreements, provided such action is consistent with the
                      Fund's investment objective and fundamental investment
                      restrictions; as a matter of non-fundamental policy, each
                      Fund intends to limit such investments to no more than 10%
                      of the value of its total assets. Pursuant to a reverse
                      repurchase agreement, a Fund will sell portfolio
                      securities to financial institutions such as banks or to
                      broker-dealers, and agree to repurchase the securities at
                      a mutually agreed-upon date and price. A Fund intends to
                      enter into reverse repurchase agreements only to avoid
                      otherwise selling securities during unfavorable market
                      conditions to meet redemptions. At the time a Fund enters
                      into a reverse repurchase agreement, it will place in a
                      segregated custodial account assets such as U.S.
                      Government securities or other liquid, high-quality debt
                      securities consistent with the Fund's investment objective
                      having a value equal to 102% of the repurchase price
                      (including accrued interest), and will subsequently
                      monitor the account to ensure that an equivalent value is
                      maintained. Reverse repurchase agreements involve the risk
                      that the market value of the securities sold by a Fund may
                      decline below the price at which a Fund is obligated to
                      repurchase the securities. Reverse repurchase agreements
                      are considered to be borrowings by a Fund under the 1940
                      Act.
 
                        RULE 144A SECURITIES -- Rule 144A Securities are
                      securities that have not been registered under the
                      Securities Act of 1933, but which may be traded between
                      certain qualified institutional investors, including
                      investment companies. The absence of a secondary market
                      may affect the value of the Rule 144A Securities. The
                      Board of Trustees of HighMark has established guidelines
                      and procedures to be utilized to determine the liquidity
                      of such securities.
 
                        SECURITIES ISSUED ON A FORWARD COMMITMENT BASIS OR
                      WHEN-ISSUED SECURITIES -- Securities purchased for
                      delivery beyond the normal settlement date at a stated
                      price and yield and which thereby involve a risk that the
                      yield obtained in the transaction will be less than that
                      available in the market when delivery takes place. When a
                      Fund agrees to purchase when-issued securities or enter
                      into forward commitments, HighMark's custodian will be
                      instructed to set aside cash or liquid portfolio
                      securities equal to the amount of the commitment in a
                      segregated account. A Fund will generally not pay for such
                      securities and no income will accrue on the securities
                      until they are received. These securities are recorded as
                      an asset and are subject to changes in value based upon
                      changes in the general level of interest rates. Therefore,
                      the purchase of
 
                                       28
<PAGE>   152
 
                      securities on a "when-issued" basis or forward commitments
                      may increase the risk of fluctuations in a Fund's net
                      asset value.
 
                        SECURITIES LENDING -- During the time portfolio
                      securities are on loan from a Fund, the borrower will pay
                      the Fund any dividends or interest paid on the securities.
                      In addition, loans will be subject to termination by the
                      Fund or the borrower at any time and, while a Fund will
                      generally not have the right to vote securities on loan,
                      it will terminate the loan and regain the right to vote if
                      that is considered important with respect to the
                      investment. While the lending of securities may subject a
                      Fund to certain risks, such as delays or an inability to
                      regain the securities in the event the borrower were to
                      default on its lending agreement or enter into bankruptcy,
                      a Fund will receive 100% collateral in the form of cash or
                      U.S. Government securities. This collateral will be valued
                      daily by the lending agent, with oversight by the Advisor,
                      and, should the market value of the loaned securities
                      increase, the borrower will be required to furnish
                      additional collateral to the Fund.
 
                        SECURITIES SUBJECT TO A PUT FEATURE -- A "put" feature
                      permits a Fund to sell a fixed income security at a fixed
                      price prior to maturity. The underlying fixed income
                      securities subject to a put may be sold at any time at the
                      market rates. However, unless the put was an integral part
                      of the fixed income security as originally issued, it may
                      not be marketable or assignable. Generally, a premium is
                      paid for a put feature or a put feature is purchased
                      separately which results in a lower yield than would
                      otherwise be available for the same fixed income
                      securities.
 
                        STANDARD & POOR'S DEPOSITARY RECEIPTS (SPDRs) -- SPDRs
                      are interests in a unit investment trust holding a
                      portfolio of securities linked to the S&P 500 Index. SPDRs
                      closely track the underlying portfolio of securities,
                      trade like a share of common stock and pay periodic
                      dividends proportionate to those paid by the portfolio of
                      stocks that constitutes the S&P 500 Index. For further
                      information regarding SPDRs, see the Statement of
                      Additional Information.
 
                        TAX-EXEMPT COMMERCIAL PAPER -- Commercial paper, which
                      is commercial paper issued by governments and political
                      subdivisions.
 
                        TIME DEPOSITS -- Non-negotiable receipts issued by U.S.
                      or foreign banks in exchange for the deposit of funds.
                      Like certificates of deposit, they earn a specified rate
                      of interest over a definite period of time; however, they
                      cannot be traded in the secondary market. Time deposits
                      with a withdrawal penalty are considered to be illiquid
                      securities.
 
                        U.S. GOVERNMENT AGENCY SECURITIES -- Certain Federal
                      agencies have been established as instrumentalities of the
                      U.S. Government to supervise and finance certain types of
                      activities. Issues of these agencies, while not direct
 
                                       29
<PAGE>   153
 
                      obligations of the U.S. Government, are either backed by
                      the full faith and credit of the United States (e.g., GNMA
                      securities) or supported by the issuing agencies' right to
                      borrow from the U.S. Treasury. The issues of other
                      agencies are supported only by the credit of the
                      instrumentality (e.g., FNMA securities).
 
                        U.S. TREASURY OBLIGATIONS -- Bills, notes, and bonds
                      issued by the U.S. Treasury, as well as separately traded
                      interest and principal component parts of such obligations
                      known as Separately Traded Registered Interest and
                      Principal Securities ("STRIPS") that are transferable
                      through the Federal book-entry system.
 
                        U.S. Government Securities generally do not involve the
                      credit risks associated with investments in other types of
                      fixed-income securities, although, as a result, the yields
                      available from U.S. Government Securities are generally
                      lower than the yields available from otherwise comparable
                      corporate fixed-income securities. Like other fixed-income
                      securities, however, the values of U.S. Government
                      Securities change as interest rates fluctuate.
                      Fluctuations in the value of portfolio securities will in
                      many cases not affect interest income on existing
                      portfolio securities, but will be reflected in the Fund's
                      net asset value. Because the magnitude of these
                      fluctuations will generally be greater at times when a
                      Fund's average maturity is longer, under certain market
                      conditions the Fund may invest in short-term investments
                      yielding lower current income rather than investing in
                      higher yielding longer-term securities.
 
                        VARIABLE AND FLOATING RATE INSTRUMENTS -- Obligations
                      that may carry variable or floating rates of interest, may
                      involve conditional or unconditional demand features and
                      may include variable amount master demand notes. The
                      interest rates on these securities may be reset daily,
                      weekly, quarterly or some other reset period, and may have
                      a floor or ceiling on interest rate changes. There is a
                      risk that the current interest rate on such obligations
                      may not accurately reflect existing market interest rates.
                      A demand instrument with a demand notice period exceeding
                      seven days may be considered illiquid if there is no
                      secondary market for such security.
 
                        WARRANTS -- Securities that entitle the holder to buy a
                      proportionate amount of common stock at a specified price
                      for a limited or unlimited period of time. Warrants are
                      often freely transferable and are traded on major stock
                      exchanges.
 
                        YANKEE BONDS -- Dollar denominated securities issued by
                      foreign-domiciled issuers that obligate the issuer to pay
                      the bondholder a specified sum of money, usually
                      semiannually, and to repay the principal amount of the
                      loan at maturity. Sovereign bonds are bonds issued by the
                      governments of foreign countries. Supranational bonds are
                      those issued by supranational entities, such as
 
                                       30
<PAGE>   154
 
                      the World Bank and European Investment Bank. Canadian
                      bonds are bonds issued by Canadian provinces.
 
                        ZERO-COUPON OBLIGATIONS -- Non-income producing
                      securities evidencing ownership of future interest and
                      principal payments on bonds. These obligations pay no
                      current interest and are typically sold at prices greatly
                      discounted from par value. The return on a zero-coupon
                      obligation, when held to maturity, equals the difference
                      between the par value and the original purchase price.
 
                        For federal income tax purposes, the difference between
                      the par value and the original issue price (original issue
                      discount) is included in the income of a holder of a
                      zero-coupon obligation over the term of the obligation
                      even though the interest is not paid until maturity. The
                      amount included in income is determined under a constant
                      interest rate method. In addition, if an obligation is
                      purchased subsequent to its original issue, a holder such
                      as the Income Funds may elect to include market discount
                      in income currently on a ratable accrual method or a
                      constant interest rate method. Market discount is the
                      difference between the obligation's "adjusted issue price"
                      (the original issue price plus original issue discount
                      accrued to date) and the holder's purchase price. If no
                      such election is made, gain on the disposition of a market
                      discount obligation is treated as ordinary income (rather
                      than capital gain) to the extent it does not exceed the
                      accrued market discount.
 
                        Zero-coupon obligations have greater price volatility
                      than other fixed-income obligations of similar maturity
                      and such obligations will be purchased when the yield
                      spread, in light of the obligation's duration, is
                      considered advantageous.
 
                                       31
<PAGE>   155
 
                             HIGHMARK BALANCED FUND
                            INVESTMENT PORTFOLIO OF
                                 HIGHMARK FUNDS
                   For further information (including current
                  yield, purchase and redemption information),
                             call 1-(800) 433-6884
 
INVESTMENT ADVISOR
Pacific Alliance Capital Management,
a division of Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
CUSTODIAN
Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
ADMINISTRATOR & DISTRIBUTOR
SEI Fund Resources and
SEI Financial Services Company
Oaks, Pennsylvania 19456
 
LEGAL COUNSEL
Ropes & Gray
One Franklin Square
1301 K Street, N.W., Suite 800 East
Washington, D.C. 20005
 
AUDITORS
Deloitte & Touche LLP
1700 Courthouse Plaza Northeast
Dayton, OH 45402
 
  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS IN CONNECTION WITH THE OFFERING
MADE BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR
REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY HIGHMARK OR
ITS DISTRIBUTOR. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFERING BY HIGHMARK OR
BY THE DISTRIBUTOR IN ANY JURISDICTION IN WHICH SUCH OFFERING MAY NOT LAWFULLY
BE MADE.
 
NOT FDIC INSURED
<PAGE>   156
                             - California
                               Intermediate
                               Tax-Free Bond Fund

                                   Prospectus

                                Fiduciary Shares

                                 March 28, 1997

84825-A(3/97)                 [LOGO] HIGHMARK(SM)
                                     FUNDS

<PAGE>   157
 
                                 HIGHMARK FUNDS
 
                   CALIFORNIA INTERMEDIATE TAX-FREE BOND FUND
 
  HighMark Funds ("HighMark") is an open-end, diversified, registered investment
company that offers a convenient means of investing in one or more
professionally managed portfolios of securities. This Prospectus relates to
HighMark's California Intermediate Tax-Free Bond Fund.
 
                                FIDUCIARY SHARES
 
  HighMark's Fiduciary Shares are offered to the following investors: (i)
fiduciary, advisory, agency, custodial and other similar accounts maintained
with Union Bank of California, N.A. or its affiliates; (ii) SelectIRA accounts
established with The Bank of California, N.A. and invested in any of HighMark's
Equity or Fixed Income Funds prior to June 20, 1994, which have remained
continuously open thereafter and which are not considered to be fiduciary
accounts; (iii) Shareholders who currently own Shares of HighMark's Equity or
Fixed Income Funds that were purchased prior to June 20, 1994 within an account
registered in their name with the Funds; and (iv) present and retired directors,
officers and employees (and their spouses and children under the age of 21) of
Union Bank of California, N.A., HighMark's current or former distributors or
their respective affiliated companies who currently own Shares of HighMark Funds
which were purchased before April 30, 1997.
 
  This Prospectus sets forth concisely the information about HighMark and the
California Intermediate Tax-Free Bond Fund that a prospective investor should
know before investing. Investors are advised to read this Prospectus and retain
it for future reference. A Statement of Additional Information dated the same
date as this Prospectus has been filed with the Securities and Exchange
Commission and is available without charge by writing the Distributor, SEI
Financial Services Company,Oaks, Pennsylvania 19456, or by calling
1-800-433-6884. The Statement of Additional Information is incorporated into
this Prospectus by reference. This Prospectus relates only to the Fiduciary
Shares of the California Intermediate Tax-Free Bond Fund. Interested persons who
wish to obtain a prospectus for the other Funds of HighMark may contact the
Distributor at the above address and telephone number.
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
HIGHMARK'S SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK, INCLUDING UNION BANK OF CALIFORNIA, N.A., BANK OF
TOKYO-MITSUBISHI, LIMITED OR ANY OF THEIR AFFILIATES OR CORRESPONDENTS.
HIGHMARK'S SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT INSURANCE
CORPORATION OR ANY OTHER GOVERNMENT AGENCY. INVESTMENT IN HIGHMARK INVOLVES
RISKS, INCLUDING POSSIBLE LOSS OF THE PRINCIPAL AMOUNT INVESTED.
 
March 28, 1997
Fiduciary Shares
<PAGE>   158
 
                                    SUMMARY
 
HIGHMARK FUNDS ("HighMark") is an open-end, diversified, registered investment
company providing a convenient way to invest in professionally managed
portfolios of securities. The following provides basic information about the
Fiduciary Shares of the HighMark California Intermediate Tax-Free Bond Fund (the
"California Intermediate Tax-Free Bond Fund" or the "Fund"). This summary is
qualified in its entirety by reference to the more detailed information provided
elsewhere in the Prospectus and in the Statement of Additional Information.
 
WHAT IS THE FUND'S INVESTMENT OBJECTIVE? The Fund seeks to provide high current
income that is exempt from federal and State of California income taxes. (See
"INVESTMENT OBJECTIVE")
 
WHAT ARE THE FUND'S PERMITTED INVESTMENTS? The Fund invests primarily in
investment grade or better bonds and notes issued by the State of California,
its agencies, instrumentalities and political sub-divisions, the income on which
is exempt from regular federal and State of California personal income taxes
("California Municipal Securities"). (See "INVESTMENT POLICIES")
 
WHAT ARE THE RISKS INVOLVED WITH AN INVESTMENT IN THE FUND? The investment
policies of the Fund entail certain risks and considerations of which an
investor should be aware. Shares of the Fund will fluctuate in value with the
value of the Fund's underlying portfolio securities. Values of fixed income
securities in which the Fund invests tend to vary inversely with interest rates,
and may be affected by other market and economic factors affecting the State of
California as well. (See "Risk Factors")
 
ARE MY INVESTMENTS INSURED? HighMark's Shares are not federally insured by the
FDIC or any other government agency. Any guarantee by the U.S. Government, its
agencies or any instrumentalities of the securities in which any Fund invests
guarantees only the payment of principal and interest on the guaranteed
security, and does not guarantee the total return or value of the security or
total return or value of Shares of that Fund.
 
WHO IS THE ADVISOR? Pacific Alliance Capital Management, a division of Union
Bank of California, N.A., serves as the Advisor to HighMark. (See "The Advisor")
 
WHO IS THE ADMINISTRATOR? SEI Fund Resources serves as the Administrator of
HighMark. (See "The Administrator")
 
WHO IS THE CUSTODIAN? Union Bank of California, N.A., (the "Bank") serves as the
custodian of HighMark's assets. (See "The Custodian")
 
WHO IS THE DISTRIBUTOR? SEI Financial Services Company acts as distributor of
HighMark's Shares. (See "The Distributor")
 
HOW DO I PURCHASE AND REDEEM SHARES? Purchases and redemptions may be made
through the Distributor on days on which both the New York Stock Exchange and
the Federal Reserve wire system are open for business ("Business Days"). The
minimum initial investment is generally $1,000. A purchase order will be
effective if the Distributor receives an order prior to 1:00 p.m., Pacific time
(4:00 p.m., Eastern time). Purchase orders for Shares will be executed at a per
Share price equal to the asset value next determined after the purchase order is
effective. Redemption orders must be placed prior to 1:00 p.m., Pacific time
(4:00 p.m., Eastern time) on
 
                                        2
<PAGE>   159
 
any Business Day for the order to be effective that day. (See "PURCHASE AND
REDEMPTION OF SHARES")
 
HOW ARE DIVIDENDS PAID? Substantially all of the net investment income
(exclusive of capital gains) of the Fund is distributed in the form of monthly
dividends to Shareholders of record. Any capital gain is distributed at least
annually. Distributions are paid in additional Shares unless the Shareholder
elects to take the payment in cash. (See "DIVIDENDS")
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
Summary...............................................................................    2
California Intermediate Tax-Free Bond Fund Fee Table..................................    4
Fund Description......................................................................    5
Investment Objective..................................................................    5
Investment Policies...................................................................    5
  California Municipal Securities.....................................................    6
General...............................................................................    7
  Money Market Instruments............................................................    7
  Illiquid and Restricted Securities..................................................    7
  Lending of Portfolio Securities.....................................................    7
  Other Investments...................................................................    7
  Risk Factors........................................................................    8
Investment Limitations................................................................    9
  Portfolio Turnover..................................................................   10
Purchase and Redemption of Shares.....................................................   10
Exchange Privileges...................................................................   11
Dividends.............................................................................   12
Taxes.................................................................................   13
  Federal Taxation....................................................................   13
  California Taxes....................................................................   15
Service Arrangements..................................................................   16
  The Advisor.........................................................................   16
  Administrator.......................................................................   17
  The Transfer Agent..................................................................   17
  Shareholder Service Plan............................................................   18
  Distributor.........................................................................   18
  Banking Laws........................................................................   18
  Custodian...........................................................................   18
General Information...................................................................   19
  Description of HighMark & Its Shares................................................   19
  Performance Information.............................................................   19
  Miscellaneous.......................................................................   20
Description of Permitted Investments..................................................   21
</TABLE>
 
                                        3
<PAGE>   160
 
              CALIFORNIA INTERMEDIATE TAX-FREE BOND FUND FEE TABLE
 
<TABLE>
<CAPTION>
                                                                                                         CALIFORNIA
                                                                                                        INTERMEDIATE
                                                                                                          TAX-FREE
                                                                                                         BOND FUND
                                                                                                         FIDUCIARY
                                                                                                           SHARES
                                                                                                        ------------
<S>                                                                                                     <C>
SHAREHOLDER TRANSACTION EXPENSES(a)
  Maximum Sales Load Imposed on Purchases (as a percentage of offering price).........................      0.00%
  Maximum Sales Load Imposed on Reinvested Dividends (as a percentage of offering price)..............         0%
  Deferred Sales Load (as a percentage of original purchase price or redemption proceeds, as
    applicable).......................................................................................         0%
  Redemption Fees (as a percentage of amount redeemed, if applicable)(b)..............................         0%
  Exchange Fee(a).....................................................................................      $  0
ANNUAL OPERATING EXPENSES (as a percentage of net assets)
  Management Fees (after voluntary reduction)(c)......................................................      0.00%
  12b-1 Fees..........................................................................................      0.00%
  Other Expenses (after voluntary reduction)(d).......................................................      0.22%
                                                                                                           -----
  Total Fund Operating Expenses (after voluntary reduction)(e)........................................      0.22%
                                                                                                           =====
</TABLE>
 
  EXAMPLE: You would pay the following expenses on a $1,000 investment, assuming
(1) 5% annual return and (2) redemption at the end of each time period.
 
<TABLE>
<CAPTION>
                                                                1        3        5        10
                                                               YEAR    YEARS    YEARS     YEARS
                                                              ------   ------   ------   -------
<S>                                                           <C>      <C>      <C>      <C>
California Intermediate Tax-Free Bond Fund Fiduciary
  Shares....................................................    $2       $7      $ 12      $28
</TABLE>
 
  The purpose of the tables above is to assist an investor in the California
Intermediate Tax-Free Bond Fund in understanding the various costs and expenses
that a Shareholder will bear directly or indirectly. For a more complete
discussion of the Fund's annual operating expenses, see SERVICE ARRANGEMENTS
below. THE FOREGOING EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST
OR FUTURE EXPENSES. ACTUAL EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN.
- ---------------
 
(a) Certain entities (including Union Bank of California and its affiliates)
    making investments in the California Intermediate Tax-Free Bond Fund on
    behalf of their customers may charge customers fees for services provided in
    connection with the investment in, redemption of, and exchange of Shares.
    (See PURCHASE AND REDEMPTION OF SHARES, EXCHANGE PRIVILEGES, and SERVICE
    ARRANGEMENTS below.)
 
(b) A wire redemption charge is deducted from the amount of a wire redemption
    payment made at the request of a Shareholder.
 
(c) Absent voluntary fee waivers, MANAGEMENT FEES would be 0.50% for the
    Fiduciary Shares of the California Intermediate Tax-Free Bond Fund.
 
(d) OTHER EXPENSES for the California Intermediate Tax-Free Bond Fund are based
    on that Fund's estimated expenses for the current fiscal year. Absent
    voluntary fee waivers, OTHER EXPENSES would be 0.74% for the Fiduciary
    Shares of the California Intermediate Tax-Free Bond Fund.
 
(e) Absent voluntary fee waivers, TOTAL FUND OPERATING EXPENSES would be: 1.24%
    for the Fiduciary Shares of the California Intermediate Tax-Free Bond Fund.
 
                                        4
<PAGE>   161
 
FUND
DESCRIPTION             HighMark Funds ("HighMark") is an open-end, diversified,
                      registered investment company that currently offers units
                      of beneficial interest ("Shares") in sixteen separate
                      investment portfolios ("Funds"). All of the Funds are
                      advised by Pacific Alliance Capital Management (the
                      "Advisor"), a division of Union Bank of California, N.A.
                      Shareholders may purchase Shares of selected Funds through
                      two separate classes (the "Retail" and "Fiduciary"
                      classes). These classes may have different sales charges
                      and other expenses, which may affect performance.
                      Information regarding HighMark's other Funds and other
                      classes is contained in separate prospectuses that may be
                      obtained from HighMark's Distributor, SEI Financial
                      Services Company, at Oaks, Pennsylvania 19456, or by
                      calling 1-800-433-6884.
 
                        For information concerning those investors who qualify
                      to purchase Fiduciary Shares, see PURCHASE AND REDEMPTION
                      OF SHARES below. (Fiduciary Shares may be hereinafter
                      referred to as "Shares.")
 
INVESTMENT
OBJECTIVE               The California Intermediate Tax-Free Bond Fund seeks to
                      provide high current income that is exempt from federal
                      and State of California income taxes.
 
                        The investment objective and certain of the investment
                      limitations of the California Intermediate Tax-Free Bond
                      Fund may not be changed without a vote of the holders of a
                      majority of the outstanding Shares of the Fund (as defined
                      under GENERAL INFORMATION--Miscellaneous below). There can
                      be no assurance that the Fund will achieve its investment
                      objective.
 
INVESTMENT
POLICIES                Under normal market conditions, the Fund will invest
                      primarily in bonds and notes issued by the State of
                      California, its agencies, instrumentalities, and political
                      sub-divisions, the income on which is exempt from regular
                      federal and State of California personal income taxes
                      ("California Municipal Securities"). The Fund may also
                      invest in bonds and notes of other states, territories,
                      and possessions of the U.S. and their agencies,
                      authorities, instrumentalities and political sub-divisions
                      which are exempt from federal income taxes, and in shares
                      of other investment companies, specifically money market
                      funds, which have similar investment objectives.
 
                        Under normal market conditions, at least 80% of the
                      Fund's assets will be invested in bonds and notes rated
                      AAA, AA, A or BBB by Standard & Poor's Corporation
                      ("S&P"), Aaa, Aa, A or Baa by Moody's Investors Service
                      ("Moody's"), or AAA, AA, A or BBB by Fitch Investors
                      Service ("Fitch") or investment grade by a nationally
                      recognized rating agency or are deemed by the Advisor to
                      be of comparable quality at the time of purchase and which
                      pay interest that is not treated as a preference item for
                      purposes of the federal alternative minimum tax. In the
                      event that a security owned by the Fund is
 
                                        5
<PAGE>   162
 
                      downgraded below the stated ratings categories, the
                      Advisor will take appropriate action with regard to the
                      security.
 
                        Under California law, a mutual fund must have at least
                      50% of its total assets invested in California Municipal
                      Securities at the end of each quarter of its taxable year
                      in order to be eligible to pay California residents
                      dividends that are wholly or partially exempt from
                      California personal income taxes. Accordingly, the Fund
                      intends to maintain at least 65% of its assets in
                      California Municipal Securities and may invest up to 100%
                      of its assets in such securities.
 
                        The Fund has no restrictions on the maturity of
                      municipal securities in which it may invest. Under normal
                      market conditions, the dollar-weighted average portfolio
                      maturity of the Fund is expected to be from three to ten
                      years. Accordingly, the Fund seeks to invest in municipal
                      securities of such maturities which, in the judgment of
                      the Advisor, will provide a high level of current income
                      consistent with prudent investment, with consideration
                      given to market conditions.
 
                      California Municipal Securities
 
                        The two principal classifications of California
                      Municipal Securities are "general obligation" and
                      "revenue" bonds. General obligation bonds are secured by
                      the issuer's pledge of its full faith, credit, and taxing
                      power for the payment of principal and interest. Revenue
                      bonds are payable primarily from the revenues derived from
                      a particular facility or class of facilities or, in some
                      cases, from the proceeds of a special excise tax or other
                      specific revenue source. Private activity bonds (formerly
                      known as industrial revenue bonds) are generally revenue
                      bonds.
 
                        Certain California Municipal Securities are municipal
                      lease revenue obligations (or certificates of
                      participation or "COPs"), which typically provide that the
                      municipality has no obligation to make lease or
                      installment payments in future years unless money is
                      appropriated for such purpose. While the risk of non-
                      appropriation is inherent to COP financing, this risk is
                      mitigated by the Fund's policy to invest in COPs that are
                      rated in one of the four highest rating categories used by
                      Moody's, S&P, or Fitch.
 
                        California Municipal Securities also include so-called
                      Mello-Roos and assessment district bonds, which are
                      usually unrated instruments issued to finance the building
                      of roads and other public works and projects that are
                      primarily secured by real estate taxes levied on property
                      located in the local community. Most of these bonds do not
                      seek agency ratings because the issues are too small, and
                      in most cases, the purchase of these bonds is based upon
                      the Advisor's determination that it is suitable for the
                      Fund.
 
                                        6
<PAGE>   163
 
                        Certain of the obligations in which the Fund may invest
                      may be variable or floating rate instruments and may
                      involve a conditional or unconditional demand feature.
 
GENERAL               Money Market Instruments
 
                        When market conditions indicate a temporary "defensive"
                      investment strategy as determined by the Advisor, the Fund
                      may invest more than 20% of its total assets in municipal
                      obligations of other states or taxable money market
                      instruments including repurchase agreements. The Fund will
                      not be pursuing its investment objective to the extent
                      that a substantial portion of its assets are invested in
                      taxable money market instruments.
 
                      Illiquid and Restricted Securities
 
                        The Fund shall limit investment in illiquid securities
                      to 15% or less of its net assets. Generally, an "illiquid
                      security" is any security that cannot be disposed of
                      promptly and in the ordinary course of business at
                      approximately the amount at which the Fund has valued the
                      instrument. The absence of a trading market can make it
                      difficult to ascertain the market value of illiquid
                      securities. The Fund may purchase restricted securities
                      which have not been registered under the Securities Act of
                      1933 (e.g., Rule 144A Securities and Section 4(2)
                      commercial paper) subject to policies approved by the
                      Board of Trustees. See INVESTMENT RESTRICTIONS in the
                      Statement of Additional Information.
 
                      Lending of Portfolio Securities
 
                        In order to generate additional income, the Fund may
                      lend its portfolio securities to broker-dealers, banks or
                      other institutions. The Fund may lend portfolio securities
                      in an amount representing up to 33 1/3% of the value of
                      the Fund's total assets.
 
                      Other Investments
 
                        The Fund may enter into repurchase agreements and
                      reverse repurchase agreements.
 
                        The Fund may enter into forward commitments or purchase
                      securities on a "when-issued" basis. The Fund expects that
                      commitments by it to enter into forward commitments or
                      purchase when-issued securities will not exceed 25% of the
                      value of the Fund's total assets under normal market
                      conditions. The Fund does not intend to purchase
                      when-issued securities or forward commitments for
                      speculative or leveraging purposes but only for the
                      purpose of acquiring portfolio securities.
 
                                        7
<PAGE>   164
 
                        The Fund may invest up to 5% of its total assets in the
                      securities of any one registered investment company, but
                      may not own more than 3% of the securities of any one
                      registered investment company or invest more than 10% of
                      its assets in the securities of other registered
                      investment companies. In accordance with an exemptive
                      order issued to HighMark by the SEC, such other registered
                      investment company securities may include securities of a
                      money market fund of HighMark, and such companies may
                      include companies for which the Advisor or a Sub-Advisor
                      to a Fund of HighMark, or an affiliate of such Advisor or
                      Sub-Advisor serves as investment advisor, administrator or
                      distributor. Because other registered investment companies
                      employ an investment advisor, such investment by the Fund
                      may cause Shareholders to bear duplicative fees. The
                      Advisor will waive its fees attributable to the assets of
                      the investing Fund invested in a money market fund of
                      HighMark, and, to the extent required by applicable law,
                      the Advisor will waive its fees attributable to the assets
                      of the Fund invested in any investment company. Some Funds
                      are subject to additional restrictions on investments in
                      other investment companies. See "INVESTMENT RESTRICTIONS"
                      in the Statement of Additional Information.
 
                        The Fund may invest in futures and options on futures
                      for the purpose of achieving the Fund's objectives and for
                      adjusting portfolio duration. The Fund may invest in
                      futures and related options based on any type of security
                      or index traded on U.S. or foreign exchanges or over the
                      counter, as long as the underlying security, or securities
                      represented by an index, are permitted investments of the
                      Fund. The Fund may enter into futures contracts and
                      related options only to the extent that obligations under
                      such contracts or transactions represent not more than 10%
                      of the Fund's assets.
 
                        For further information, see "DESCRIPTION OF PERMITTED
                      INVESTMENTS."
 
                      Risk Factors
 
                        In addition to credit risk which relates to the ability
                      of an issuer to make payments of principal and interest,
                      all types of bonds are also subject to market risk. Market
                      risk relates to changes in a security's value as a result
                      of interest rate changes generally. An increase in
                      interest rates will generally reduce the value of the
                      investments in the Fund and a decline in interest rates
                      will generally increase the value of those investments.
                      Accordingly, the net asset value of the Fund's Shares will
                      vary as a result of changes in the value of the securities
                      in the Fund's portfolio. Therefore, an investment in the
                      Fund may decline in value, resulting in a loss of
                      principal. Because interest rates vary, it is impossible
                      to predict the income or yield of the Fund for any
                      particular period.
 
                                        8
<PAGE>   165
 
                        Changes by recognized rating agencies in the rating of
                      any fixed income security and in the ability of an issuer
                      to make payments of interest and principal also affect the
                      value of these investments. Changes in the value of fund
                      securities will not affect cash income derived from these
                      securities, but will affect the Fund's net asset value.
 
                        The ability of the State of California and its political
                      sub-divisions to generate revenue through real property
                      and other taxes and to increase spending has been
                      significantly restricted by various constitutional and
                      statutory amendments and voter-passed initiatives. Such
                      limitations could affect the ability of California state
                      and municipal issuers to pay interest or repay principal
                      on their obligations. In addition, during the first half
                      of the decade, California faced severe economic and fiscal
                      conditions and experienced recurring budget deficits that
                      caused it to deplete its available cash resources and to
                      become increasingly dependent upon external borrowings to
                      meet its cash needs.
 
                        The financial difficulties experienced by the State of
                      California and municipal issuers during the recession
                      resulted in the credit ratings of certain of their
                      obligations being downgraded significantly by the major
                      rating agencies.
 
                        Securities rated BBB by S&P or Fitch or Baa by Moody's
                      are considered investment grade, but are deemed by these
                      rating services to have some speculative characteristics,
                      and adverse economic conditions or other circumstances are
                      more likely to lead to a weakened capacity to make
                      principal and interest payments than is the case with
                      higher grade bonds.
 
INVESTMENT
LIMITATIONS             The Fund may not:
 
                        1. Purchase securities of any issuer (except securities
                      issued or guaranteed by the U.S. Government or its
                      agencies and instrumentalities and repurchase agreements
                      involving such securities) if as a result more than 5% of
                      the total assets of the Fund would be invested in the
                      securities of such issuer provided, however, that the Fund
                      may invest up to 25% of its total assets without regard to
                      this restriction as permitted by applicable law.
 
                        2. Purchase any securities which would cause more than
                      25% of the total assets of the Fund to be invested in the
                      securities of one or more issuers conducting their
                      principal business activities in the same industry,
                      provided that this limitation does not apply to
                      investments in the obligations issued or guaranteed by the
                      U.S. Government or its agencies and instrumentalities and
                      repurchase agreements involving such securities, and
                      provided further, that utilities as a group will not be
                      considered to be one industry, and wholly-owned
                      subsidiaries organized to finance the operations of their
                      parent companies will be considered to be in the same
                      industries as their parent companies.
 
                                        9
<PAGE>   166
 
                        3. Make loans, except the Fund may (a) purchase or hold
                      debt instruments in accordance with its investment
                      objective and policies; (b) enter into repurchase
                      agreements; and (c) lend securities.
 
                        The foregoing percentages will apply at the time of the
                      purchase of a security. The investment limitations listed
                      above are fundamental policies the substance of which may
                      not be changed without a vote of a majority of the
                      outstanding Shares of the Fund. Additional fundamental and
                      non-fundamental investment limitations are set forth in
                      the Statement of Additional Information.
 
                      Portfolio Turnover
 
                        The Fund's portfolio turnover rate will not be a factor
                      preventing a sale or purchase when the Advisor believes
                      investment considerations warrant. The Fund's portfolio
                      turnover rate may vary greatly from year to year as well
                      as within a particular year. High portfolio turnover rates
                      generally will result in correspondingly higher brokerage
                      and other transactions costs to the Fund and could involve
                      the realization of capital gains that would be taxable
                      when distributed to Shareholders of the Fund. See "Federal
                      Taxation."
 
PURCHASE AND
REDEMPTION
OF SHARES               As noted above, the Fund is divided into two classes of
                      Shares, Retail and Fiduciary. Fiduciary Shares may be
                      purchased at net asset value. Only the following investors
                      qualify to purchase the California Intermediate Tax-Free
                      Bond Fund's Fiduciary Shares: (i) fiduciary, advisory,
                      agency, custodial and other similar accounts maintained
                      with Union Bank of California, N.A. or its affiliates;
                      (ii) SelectIRA accounts established with The Bank of
                      California, N.A. and invested in any of HighMark's Equity
                      or Fixed Income Funds prior to June 20, 1994, which have
                      remained continuously open thereafter and which are not
                      considered to be fiduciary accounts; (iii) Shareholders
                      who currently own Shares of HighMark's Equity or Fixed
                      Income Funds; and (iv) present and retired directors,
                      officers and employees (and their spouses and children
                      under the age of 21) of Union Bank of California, N.A.,
                      HighMark's current or former distributors or their
                      respective affiliated companies who currently own Shares
                      of HighMark Funds which were purchased before April 30,
                      1997. For a description of investors who qualify to
                      purchase Retail Shares, see the Retail Shares prospectus
                      of the California Intermediate Tax-Free Bond Fund.
 
                        Purchases and redemptions of Shares of the California
                      Intermediate Tax-Free Bond Fund may be made on days on
                      which the New York Stock Exchange and the Federal Reserve
                      wire system are open for business ("Business Days"). The
                      minimum initial investment is generally $1,000 and the
                      minimum subsequent investment is generally $100. For
                      present and retired directors, officers, and employees
                      (and their spouses and children under the age of 21) of
                      Union Bank of California, SEI Financial Services Company
                      and their affiliates, the minimum
 
                                       10
<PAGE>   167
 
                      initial investment is $250 and the minimum subsequent
                      investment is $50. The Fund's initial and subsequent
                      minimum purchase amounts may be waived, in the
                      Distributor's discretion if purchases are made in
                      connection with Individual Retirement Accounts, Keoghs,
                      payroll deduction plans, or 401(k) or similar programs or
                      accounts. Shareholders may place orders by telephone.
 
                        Purchase orders will be effective if the Distributor
                      receives an order before 1:00 p.m., Pacific time (4:00
                      p.m., Eastern time), and the custodian receives Federal
                      funds before the close of business on the next Business
                      Day. The purchase price of Shares of a Fund is the net
                      asset value next determined after a purchase order is
                      received and accepted by HighMark. The net asset value per
                      Share of a Fund is determined by dividing the total market
                      value of a Fund's investments and other assets, less any
                      liabilities, by the total number of outstanding Shares of
                      a Fund. Net asset value per share is determined daily as
                      of 1:00 p.m., Pacific time (4:00 p.m., Eastern time) on
                      any Business Day. Purchases will be made in full and
                      fractional shares of HighMark calculated to three decimal
                      places. HighMark reserves the right to reject a purchase
                      order when the Distributor determines that it is not in
                      the best interest of HighMark and/or its Shareholders to
                      accept such order.
 
                        Shares of the California Intermediate Tax-Free Bond Fund
                      are offered only to residents of states in which the
                      Shares are eligible for purchase.
 
                        Shareholders who desire to redeem shares of HighMark
                      must place their redemption orders prior to 1:00 p.m.,
                      Pacific time (4:00 p.m., Eastern time), on any Business
                      Day for the order to be accepted on that Business Day. The
                      redemption price is the net asset value of the Fund next
                      determined after receipt by the Distributor of the
                      redemption order. Payment on redemption will be made as
                      promptly as possible and, in any event, within seven
                      calendar days after the redemption order is received. The
                      Fund reserves the right to make payment on redemptions in
                      securities rather than cash.
 
                        Neither HighMark's transfer agent nor HighMark will be
                      responsible for any loss, liability, cost or expense for
                      acting upon wire instructions or upon telephone
                      instructions that it reasonably believes to be genuine.
                      HighMark and its transfer agent will each employ
                      reasonable procedures to confirm that telephone
                      instructions are genuine. Such procedures may include
                      taping of telephone conversations. If market conditions
                      are extraordinarily active or other extraordinary
                      circumstances exist, and you experience difficulties
                      placing redemption orders by telephone, you may wish to
                      consider placing your order by other means.
 
EXCHANGE
PRIVILEGES              As indicated under GENERAL INFORMATION--Description of
                      HighMark & Its Shares, certain of HighMark's Funds issue
                      two classes of Shares (Retail Shares and Fiduciary
                      Shares); as of the date of this Prospectus, the
                      Distribution
 
                                       11
<PAGE>   168
 
                      Plan and distribution fee payable thereunder are
                      applicable only to such Fund's Retail Shares. A
                      Shareholder's eligibility to exchange into a particular
                      class of Shares will be determined at the time of the
                      exchange. The Shareholder must supply, at the time of the
                      exchange, the necessary information to permit confirmation
                      of qualification.
 
                        Each Fund's Shares may be exchanged for Shares of the
                      class of the various other Funds of HighMark which the
                      Shareholder qualifies to purchase directly so long as the
                      Shareholder maintains the applicable minimum account
                      balance in each Fund in which he or she owns Shares and
                      satisfies the minimum initial and subsequent purchase
                      amounts of the Fund into which the Shares are exchanged.
                      Shareholders may exchange their Fiduciary Shares for
                      Fiduciary Shares of another Fund on the basis of the
                      relative net asset value of the Fiduciary Shares
                      exchanged. Shareholders may also exchange Fiduciary Shares
                      of a Fund for Retail Shares of another Fund. Under such
                      circumstances, the cost of the acquired Retail Shares will
                      be the net asset value per share plus the appropriate
                      sales load.
 
                        Exchanges will be made on the basis of the relative net
                      asset values of the Shares exchanged plus any applicable
                      sales charge. Exchanges are subject to the terms and
                      conditions stated herein and the terms and conditions
                      stated in the respective prospectuses of the Funds.
 
                        Certain entities (including participating organizations
                      and Union Bank of California and its affiliates), however,
                      may charge customers a fee with respect to exchanges made
                      on the customer's behalf. Information about these charges,
                      if any, can be obtained by the entity effecting the
                      exchange and this Prospectus should be read in conjunction
                      with that information.
 
                        A Shareholder wishing to exchange Shares in the
                      California Intermediate Tax-Free Bond Fund may do so by
                      contacting the transfer agent at 1-800-433-6884. Exchanges
                      will be effected on any Business Day at the net asset
                      value of the Funds involved in the exchange next
                      determined after the exchange request is received by the
                      transfer agent.
 
                        An exchange is considered to be a sale of Shares for
                      federal income tax purposes on which a Shareholder may
                      realize a capital gain or loss. Exchange privileges may be
                      exercised only in those states where Shares of such other
                      Funds of HighMark may legally be sold. HighMark may
                      materially amend or terminate the exchange privileges
                      described herein upon sixty days' notice.
 
DIVIDENDS               The net income of the California Intermediate Tax-Free
                      Bond Fund is declared and paid monthly as a dividend to
                      Shareholders of record at the close of
 
                                       12
<PAGE>   169
 
                      business on the day of declaration. Net realized capital
                      gains, if any, are distributed at least annually to
                      Shareholders of record.
 
                        Shareholders will automatically receive all income
                      dividends and capital gains distributions in additional
                      full and fractional Shares of the Fund at net asset value
                      as of the date of declaration (which is also the
                      ex-dividend date), unless the Shareholder elects to
                      receive such dividends or distributions in cash.
                      Shareholders wishing to receive their dividends in cash
                      (or wishing to revoke a previously made election) must
                      notify the transfer agent at P.O. Box 8416, Boston, MA
                      02266-8416, and such election (or revocation thereof) will
                      become effective with respect to dividends and
                      distributions having record dates after notice has been
                      received. Dividends paid in additional Shares receive the
                      same tax treatment as dividends paid in cash.
 
TAXES                 Federal Taxation
 
                        The California Intermediate Tax-Free Bond Fund intends
                      to qualify for treatment as a "regulated investment
                      company" under the Internal Revenue Code of 1986, as
                      amended (the "Code"), and to distribute substantially all
                      of its net investment income and net realized capital
                      gains, if any, so that the Fund is not required to pay
                      federal taxes on these amounts.
 
                        Because all of the Fund's net investment income is
                      expected to be derived from interest, it is anticipated
                      that no part of any distribution will be eligible for the
                      federal dividends received deduction for corporations. The
                      Fund is not managed to generate any long-term capital
                      gains and, therefore, does not foresee paying any
                      significant "capital gains dividends" as described in the
                      Code.
 
                        Exempt-interest dividends from the Fund are excludable
                      from Shareholders' gross income for federal income tax
                      purposes. Such dividends may be taxable to Shareholders
                      under state or local law as ordinary income even though
                      all or a portion of the amounts may be derived from
                      interest on tax-exempt obligations which, if realized
                      directly, would be exempt from such taxes. Shareholders
                      are advised to consult a tax advisor with respect to
                      whether exempt-interest dividends retain the exclusion if
                      such Shareholder would be treated as a "substantial user"
                      or a "related person" to such user under the Code.
 
                        Under the Code, interest on indebtedness incurred or
                      continued by a Shareholder to purchase or carry Shares of
                      the Fund is not deductible for federal income tax purposes
                      to the extent the Fund distributes exempt-interest
                      dividends during the Shareholder's taxable year.
 
                        Under the Code, if a Shareholder sells a Share of the
                      Fund after holding it for six months or less, any loss on
                      the sale or exchange of such Share will be
 
                                       13
<PAGE>   170
 
                      disallowed to the extent of the amount of any
                      exempt-interest dividends that the Shareholder has
                      received with respect to the Share that is sold.
 
                        In addition, any loss (not already disallowed as
                      provided in the preceding sentence) realized upon a
                      taxable disposition of shares held for six months or less
                      will be treated as long-term, rather than short-term, to
                      the extent of any long-term capital gain distributions
                      received by the shareholder with respect to the shares.
 
                        The Fund may at times purchase California Municipal
                      Securities at a discount from the price at which they were
                      originally issued. For federal income tax purposes, some
                      or all of this market discount will be included in the
                      California Tax-Free Money Market Fund's ordinary income
                      and will be taxable to Shareholders as such when it is
                      distributed to them.
 
                        To the extent dividends paid to Shareholders are derived
                      from taxable income (for example, from interest on
                      certificates of deposit or repurchase agreements), or from
                      long-term or short-term capital gains, such dividends will
                      be subject to federal income tax, whether such dividends
                      are paid in the form of cash or additional Shares.
 
                        Under the Code, dividends attributable to interest on
                      certain private activity bonds issued after August 7, 1986
                      must be included in alternative minimum taxable income for
                      the purpose of determining liability (if any) for the
                      federal alternative minimum tax. In addition,
                      exempt-interest dividends will be included in a
                      corporation's "adjusted current earnings" for purposes of
                      the alternative minimum tax (except to the extent derived
                      from interest on certain private activity bonds issued
                      after August 7, 1986, which interest would already be
                      included in alternative minimum taxable income as a
                      specific item of tax preference). Shareholders of the Fund
                      receiving social security or railroad retirement benefits
                      may be taxed on a portion of those benefits as a result of
                      receiving tax-exempt income (including exempt-interest
                      dividends distributed by the Fund).
 
                        Prior to purchasing Shares of the California
                      Intermediate Tax-Free Bond Fund, the impact of dividends
                      or capital gain distributions that are expected to be
                      declared or have been declared, but not paid, should be
                      carefully considered. Dividends or capital gain
                      distributions received after a purchase of Shares are
                      subject to federal income taxes, although in some
                      circumstances, the dividends or distributions may be, as
                      an economic matter, a return of capital to the
                      Shareholder. A Shareholder should consult his or her
                      advisor for specific advice about the tax consequences to
                      the Shareholder of investing in the Fund.
 
                        Additional information regarding federal taxes is
                      contained in the Statement of Additional Information.
                      However, the foregoing and the material in the State-
 
                                       14
<PAGE>   171
 
                      ment of Additional Information are only brief summaries of
                      some of the important tax considerations generally
                      affecting the Fund and its Shareholders. In addition, the
                      foregoing discussion and the federal tax information in
                      the Statement of Additional Information are based on tax
                      laws and regulations which are in effect as of the date of
                      this Prospectus; these laws and regulations may
                      subsequently change, and such changes could be
                      retroactive.
 
                        Shareholders will be advised at least annually as to the
                      federal income tax status of distributions made during the
                      year.
 
                      California Taxes
 
                        The Fund intends to qualify to pay dividends to
                      Shareholders that are exempt from California personal
                      income tax ("California exempt-interest dividends"). The
                      Fund will qualify to pay California exempt-interest
                      dividends if (1) at the close of each quarter of the
                      Fund's taxable year, at least 50 percent of the value of
                      the Fund's total assets consists of obligations the
                      interest on which would be exempt from California personal
                      income tax if the obligations were held by an individual
                      ("California Tax Exempt Obligations") and (2) the Fund
                      continues to qualify as a regulated investment company.
 
                        If the Fund qualifies to pay California exempt-interest
                      dividends, dividends distributed to Shareholders will be
                      considered California exempt-interest dividends (1) if
                      they are designated as exempt-interest dividends by the
                      Fund in a written notice to Shareholders mailed within 60
                      days of the close of the Fund's taxable year and (2) to
                      the extent that they are derived from the interest
                      received by the Fund during the year on California Tax
                      Exempt Obligations (less related expenses). If the
                      aggregate dividends so designated exceed the amount that
                      may be treated as California exempt-interest dividends,
                      only that percentage of each dividend distribution equal
                      to the ratio of aggregate California exempt-interest
                      dividends to aggregate dividends so designated will be
                      treated as a California exempt-interest dividend. The Fund
                      will notify Shareholders of the amount of California
                      exempt-interest dividends each year. Corporations subject
                      to California franchise tax that invest in the Fund
                      generally will not be entitled to exclude California
                      exempt-interest dividends from income.
 
                        Dividend distributions that do not qualify for treatment
                      as California exempt-interest dividends will be taxable to
                      Shareholders at ordinary income tax rates for California
                      personal income tax purposes to the extent of the Fund's
                      earnings and profits.
 
                        Interest on indebtedness incurred or continued by a
                      Shareholder in connection with the purchase of Shares of
                      the Fund will not be deductible for California personal
                      income tax purposes if the Fund distributes California
                      exempt-interest dividends.
 
                                       15
<PAGE>   172
 
                        The foregoing is a general, abbreviated summary of
                      certain of the provisions of the California Revenue and
                      Taxation Code presently in effect as they directly govern
                      the taxation of Shareholders subject to California
                      personal income tax. These provisions are subject to
                      change by legislative or administrative action, and any
                      such change may be retroactive with respect to Fund
                      transactions. Shareholders are advised to consult with
                      their own tax advisors for more detailed information
                      concerning California tax matters.
 
SERVICE
ARRANGEMENTS          The Advisor
 
                        Pacific Alliance Capital Management, a division of Union
                      Bank of California, N.A., serves as the California
                      Intermediate Tax-Free Bond Fund's investment advisor.
                      Subject to the general supervision of HighMark's Board of
                      Trustees, the Advisor manages the Fund in accordance with
                      its investment objective and policies, makes decisions
                      with respect to and places orders for all purchases and
                      sales of the Fund's investment securities, and maintains
                      the Fund's records relating to such purchases and sales.
 
                        For the expenses assumed and services provided by the
                      Advisor as the Fund's investment advisor, Union Bank of
                      California receives a fee from the California Intermediate
                      Tax-Free Bond Fund, computed daily and paid monthly, at
                      the annual rate of fifty one-hundredths of one percent
                      (.50%) of the Fund's average daily net assets. This fee
                      may be higher than the advisory fee paid by most mutual
                      funds, although the Board of Trustees believes it will be
                      comparable to advisory fees paid by many funds having
                      similar objectives and policies. Union Bank of California
                      may from time to time agree to voluntarily reduce its
                      advisory fee. While there can be no assurance that Union
                      Bank of California will choose to make such an agreement,
                      any voluntary reductions in Union Bank of California's
                      advisory fee will lower the Fund's expenses, and thus
                      increase the Fund's yield and total return, during the
                      period such voluntary reductions are in effect. As of the
                      date of this Prospectus, the California Intermediate
                      Tax-Free Bond Fund had not yet commenced operations in
                      HighMark.
 
                        On April 1, 1996, The Bank of California, N.A.,
                      HighMark's then investment advisor, combined with Union
                      Bank and the resulting bank changed its name to Union Bank
                      of California, N.A. At the same time, the banks'
                      investment management divisions were combined. Each of
                      Union Bank and The Bank of California, N.A. (or their
                      predecessor banks) has been in banking since the early
                      1900's and, historically, each has had significant
                      investment functions within its trust and investment
                      division. UnionBanCal Corporation, the parent of Union
                      Bank of California, N.A., is a publicly held corporation,
                      but is principally held by The Bank of Tokyo-Mitsubishi,
                      Ltd. As of September 30, 1996, Union Bank of California
                      and its subsidiaries had approximately $28.7 billion in
                      commercial
 
                                       16
<PAGE>   173
 
                      assets. Pacific Alliance Capital Management is a division
                      of Union Bank of California's Trust and Investment
                      Management Group, which, as of June 30, 1996, had
                      approximately $13.4 billion of assets under management.
                      The Advisor, with a team of approximately 45 stock and
                      bond research analysts, portfolio managers and traders,
                      has been providing investment management services to
                      individuals, institutions and large corporations since
                      1917.
 
                        All investment decisions for the California Intermediate
                      Tax-Free Bond Fund are made by a team of investment
                      professionals, all of whom take an active part in the
                      decision making process. The team leader for the Fund is
                      Robert Bigelow. Mr. Bigelow has been with Union Bank of
                      California, and its predecessor, Union Bank since June
                      1994. Mr. Bigelow served as a portfolio manager at City
                      National Bank from January, 1986 to June, 1994.
 
                      Administrator
 
                        SEI Fund Resources (the "Administrator") and HighMark
                      are parties to an administration agreement (the
                      "Administration Agreement"). Under the terms of the
                      Administration Agreement, the Administrator provides
                      HighMark with certain management services, including all
                      necessary office space, equipment, personnel, and
                      facilities.
 
                        The Administrator is entitled to a fee, which is
                      calculated daily and paid monthly, at an annual rate of
                      .20% of the Fund's average daily net assets. The
                      Administrator may waive its fee or reimburse various
                      expenses to the extent necessary to limit the total
                      operating expenses of the Fund's Fiduciary Shares. Any
                      such waiver is voluntary and may be terminated at any time
                      in the Administrator's sole discretion. Currently, the
                      Administrator has agreed to waive its fee to the rate of
                      0.15% of the average daily net assets of the Funds.
 
                        Pursuant to a separate agreement with the Administrator,
                      Union Bank of California, N.A. performs sub-administration
                      services on behalf of the Fund, for which it receives a
                      fee paid by the Administrator at the annual rate of up to
                      0.05% of the Fund's average daily net assets. Union Bank
                      of California has voluntarily agreed to reduce this fee to
                      0.00%, but reserves the right to terminate its waiver at
                      any time in its sole discretion. A description of the
                      services performed by Union Bank of California pursuant to
                      this Agreement is contained in the Statement of Additional
                      Information.
 
                      The Transfer Agent
 
                        State Street Bank and Trust Company serves as the
                      transfer agent, dividend disbursing agent, and as a
                      shareholder servicing agent for the Fiduciary Shares of
                      HighMark, for which services it receives a fee.
 
                                       17
<PAGE>   174
 
                      Shareholder Service Plan
 
                        To support the provision of Shareholder services to both
                      classes of Shares, HighMark has adopted a Shareholder
                      Service Plan. A description of the services performed by
                      service providers pursuant to the Shareholder Service Plan
                      is contained in the Statement of Additional Information.
                      In consideration of services provided by any service
                      provider, which may include Union Bank of California,
                      N.A., Bank of Tokyo-Mitsubishi, Ltd., or their respective
                      affiliates, each Fund may pay a fee at the rate of up to
                      0.25% of its average daily net assets to such service
                      provider. The service provider may waive such fees at any
                      time. Any such waiver is voluntary and may be terminated
                      at any time. Currently, such fees are being waived to the
                      rate of 0.00% of average daily net assets.
 
                      Distributor
 
                        SEI Financial Services Company (the "Distributor") and
                      HighMark are parties to a distribution agreement
                      ("Distribution Agreement"). The Distribution Agreement is
                      renewable annually and may be terminated by the
                      Distributor, by a majority vote of the Disinterested
                      Trustees or by a majority vote of the outstanding
                      securities of HighMark upon not more than 60 days written
                      notice by either party, or upon assignment by the
                      Distributor. Fiduciary Shares are not subject to
                      HighMark's Distribution Plan or a distribution fee.
 
                      Banking Laws
 
                        Union Bank of California believes that it may perform
                      the services for the Fund contemplated by its investment
                      advisory agreement with HighMark without a violation of
                      applicable banking laws and regulations. Union Bank of
                      California also believes that it may perform
                      sub-administration and sub-accounting services on behalf
                      of the Fund without a violation of applicable banking laws
                      and regulations. Future changes in federal or state
                      statutes and regulations relating to permissible
                      activities of banks or bank holding companies and their
                      subsidiaries and affiliates, as well as further judicial
                      or administrative decisions or interpretations of present
                      and future statutes and regulations, could change the
                      manner in which Union Bank of California or the Advisor
                      could continue to perform such services for the Fund. For
                      a further discussion of applicable banking laws and
                      regulations, see the Statement of Additional Information.
 
                      Custodian
 
                        Union Bank of California also serves as the custodian
                      and as a shareholder servicing agent for the California
                      Intermediate Tax-Free Bond Fund. The custodian holds cash
                      securities and other assets of HighMark as required by the
                      1940 Act.
 
                                       18
<PAGE>   175
 
                        Services performed by Union Bank of California, as the
                      Fund's shareholder servicing agent and custodian, as well
                      as the basis of remuneration for such services, are
                      described in the Statement of Additional Information.
 
GENERAL
INFORMATION           Description of HighMark & Its Shares
 
                        HighMark was organized as a Massachusetts business trust
                      on March 10, 1987, and consists of sixteen series of
                      Shares open for investment representing units of
                      beneficial interest in HighMark's Growth Fund, Income
                      Equity Fund, Balanced Fund, Value Momentum Fund, Blue Chip
                      Growth Fund, Emerging Growth Fund, International Equity
                      Fund, Bond Fund, Intermediate-Term Bond Fund, Government
                      Securities Fund, Convertible Securities Fund, California
                      Intermediate Tax-Free Bond Fund, Diversified Money Market
                      Fund, U.S. Government Obligations Money Market Fund, 100%
                      U.S. Treasury Obligations Money Market Fund, and
                      California Tax-Free Money Market Fund. As of the date
                      hereof, no Shares of the Value Momentum Fund, the Blue
                      Chip Growth Fund, the Emerging Growth Fund, the
                      International Equity Fund, the Intermediate-Term Bond
                      Fund, the Convertible Securities Fund, the Government
                      Securities Fund, and the California Intermediate Tax-Free
                      Bond Fund, had been offered for sale in HighMark. Shares
                      of each Fund are freely transferable, are entitled to
                      distributions from the assets of the Fund as declared by
                      the Board of Trustees, and, if HighMark were liquidated,
                      would receive a pro rata share of the net assets
                      attributable to that Fund. Shares are without par value.
 
                        As noted above, pursuant to a Multiple Class Plan on
                      file with the Securities and Exchange Commission
                      permitting the issuance and sale of two classes of Shares
                      in selected Funds, Shares of such Funds have been divided
                      into two classes, designated Retail Shares and Fiduciary
                      Shares. For information regarding the Retail Shares of the
                      California Intermediate Tax-Free Bond Fund, interested
                      persons may contact the Distributor for a prospectus at
                      1-800-433-6884.
 
                      Performance Information
 
                        From time to time, HighMark may advertise the aggregate
                      total return, average annual total return, yield and
                      distribution rate with respect to the Fiduciary Shares of
                      the California Intermediate Tax-Free Bond Fund.
                      Performance information is computed separately for the
                      Fund's Retail and Fiduciary Shares in accordance with the
                      formulas described below.
 
                        The aggregate total return and average annual total
                      return of the California Intermediate Tax-Free Bond Fund
                      may be quoted for the life of the Fund and for ten-year,
                      five-year and one-year periods, in each case through the
                      most recent calendar quarter. Aggregate total return is
                      determined by calculating the change in the value of a
                      hypothetical $1,000 investment in the Fund over the
                      applicable
 
                                       19
<PAGE>   176
 
                      period that would equate the initial amount invested to
                      the ending redeemable value of the investment. The ending
                      redeemable value includes dividends and capital gain
                      distributions reinvested at net asset value. Average
                      annual total return is calculated by annualizing the
                      Fund's aggregate total return over the relevant number of
                      years. The resulting percentage indicates the average
                      positive or negative investment results that an investor
                      in the Fund would have experienced on an annual basis from
                      changes in Share price and reinvestment of dividends and
                      capital gain distributions.
 
                        The yield of the Fund is determined by annualizing the
                      net investment income per Share of the Fund during a
                      specified thirty-day period and dividing that amount by
                      the per Share public offering price of the Fund on the
                      last day of the period.
 
                        The distribution rate of the Fund is determined by
                      dividing the income and capital gains distributions, or
                      where indicated the income distributions alone, on a Share
                      of the Fund over a twelve-month period by the per Share
                      public offering price of the Fund on the last day of the
                      period.
 
                        Each Fund may periodically compare its performance to
                      the performance of other mutual funds tracked by mutual
                      fund rating services (such as Lipper Analytical),
                      financial and business publications and periodicals; broad
                      groups of comparable mutual funds; unmanaged indices which
                      may assume investment of dividends but generally do not
                      reflect deductions for administrative and management
                      costs; or other investment alternatives. Certain Funds may
                      advertise performance that includes results from periods
                      in which the Fund's assets were managed in a
                      non-registered predecessor vehicle.
 
                        All performance information presented for the Fund is
                      based on past performance and does not predict future
                      performance.
 
                      Miscellaneous
 
                        Shareholders will be sent unaudited semi-annual reports
                      and annual reports audited by independent public
                      accountants.
 
                        Shareholders are entitled to one vote for each Share
                      held in the Fund as determined on the record date for any
                      action requiring a vote by the Shareholders, and a
                      proportionate fractional vote for each fractional Share
                      held. Shareholders of HighMark will vote in the aggregate
                      and not by series or class except (i) as otherwise
                      expressly required by law or when HighMark's Board of
                      Trustees determines that the matter to be voted upon
                      affects only the interests of the Shareholders of a
                      particular series or particular class, and (ii) only
                      Retail Shares will be entitled to vote on matters
                      submitted to a Shareholder vote relating to the
                      Distribution Plan.
 
                                       20
<PAGE>   177
 
                        HighMark is not required to hold regular annual meetings
                      of Shareholders, but may hold special meetings from time
                      to time.
 
                        HighMark's Trustees are elected by Shareholders, except
                      that vacancies may be filled by vote of the Board of
                      Trustees. Trustees may be removed by the Board of
                      Trustees, or by Shareholders at a meeting called for such
                      purpose. For information about how Shareholders may call
                      such a meeting and communicate with other Shareholders for
                      that purpose, see ADDITIONAL INFORMATION--Miscellaneous in
                      the Statement of Additional Information.
 
                        Inquiries may be directed in writing to SEI Financial
                      Services Company, Oaks, Pennsylvania 19456, or by calling
                      toll free 1-800-433-6884.
 
DESCRIPTION OF
PERMITTED
INVESTMENTS
                        The following is a description of permitted investments
                      for the HighMark California Intermediate Tax-Free Bond
                      Fund.
 
                        ASSET-BACKED SECURITIES (NON-MORTGAGE)--Debt Instruments
                      secured by company receivables, truck and auto loans,
                      leases, and credit card receivables. Such securities are
                      generally issued as pass-through certificates, which
                      represent undivided fractional ownership interests in the
                      underlying pools of assets. Such securities also may be
                      debt instruments, which are also known as collateralized
                      obligations and are generally issued as the debt of a
                      special purpose entity, such as a trust, organized solely
                      for the purpose of owning such assets and issuing such
                      debt. The purchase of non-mortgage asset-backed securities
                      raises risk considerations peculiar to the financing of
                      the instruments underlying such securities. Asset-backed
                      securities entail prepayment risk, which may vary
                      depending on the type of asset, but is generally less than
                      the prepayment risk associated with mortgage-backed
                      securities.
 
                        Like mortgages underlying mortgage-backed securities,
                      underlying automobile sales contracts or credit card
                      receivables are subject to substantial prepayment risk,
                      which may reduce the overall return to certificate
                      holders. Nevertheless, principal prepayment rates tend not
                      to vary as much in response to changes in interest rates
                      and the short-term nature of the underlying car loans or
                      other receivables tend to dampen the impact of any change
                      in the prepayment level. Certificate holders may also
                      experience delays in payment on the certificates if the
                      full amounts due on underlying sales contracts or
                      receivables are not realized by the trust because of
                      unanticipated legal or administrative costs of enforcing
                      the contracts or because of depreciation or damage to the
                      collateral (usually automobiles) securing certain
                      contracts, or other factors. If consistent with their
                      investment objectives and policies, the Fund may invest in
                      other asset-backed securities that may be developed in the
                      future.
 
                                       21
<PAGE>   178
 
                        BANKERS' ACCEPTANCES--Bills of exchange or time drafts
                      drawn on and accepted by commercial banks. They are used
                      by corporations to finance the shipment and storage of
                      goods and to furnish dollar exchange. Maturities are
                      generally six months or less.
 
                        CERTIFICATES OF DEPOSIT--Negotiable interest-bearing
                      instruments with a specific maturity. Certificates of
                      deposit are issued by banks and savings and loan
                      institutions in exchange for the deposit of funds and
                      normally can be traded in the secondary market prior to
                      maturity.
 
                        COMMERCIAL PAPER--Unsecured short-term promissory notes
                      issued by corporations and other entities. Maturities on
                      these issues vary from a few days to nine months. Purchase
                      of such instruments involves a risk of default by the
                      issuer.
 
                        DERIVATIVES--Instruments whose value is derived from an
                      underlying contract, index or security, or any combination
                      thereof, including futures, options (e.g., puts and
                      calls), options on futures, swap agreements, and some
                      mortgage-backed securities (CMOs, REMICs, IOs and POs).
                      See elsewhere in this "DESCRIPTION OF PERMITTED
                      INVESTMENTS" for discussions of these various instruments,
                      and see "INVESTMENT OBJECTIVES" and "INVESTMENT POLICIES"
                      for more information about any policies and limitations
                      applicable to their use.
 
                        FUTURES AND OPTIONS ON FUTURES--Some futures strategies,
                      including selling futures, buying puts and writing calls,
                      reduce a Fund's exposure to price fluctuations. Other
                      strategies, including buying futures, writing puts and
                      buying calls, tend to increase market exposure. Futures
                      and options may be combined with each other in order to
                      adjust the risk and return characteristics of the overall
                      portfolio.
 
                        Options and futures can be volatile instruments, and
                      involve certain risks that, if applied at an inappropriate
                      time, could negatively impact a Fund's return.
 
                        INVESTMENT GRADE BONDS--Interest-bearing or discounted
                      government or corporate securities that obligate the
                      issuer to pay the bondholder a specified sum of money,
                      usually at specific intervals, and to repay the principal
                      amount of the loan at maturity. Investment grade bonds are
                      those rated BBB or better by S&P or Baa or better by
                      Moody's or similarly rated by other NRSROs, or, if not
                      rated, determined to be of comparable quality by the
                      Advisor.
 
                        MONEY MARKET INSTRUMENTS--Short-term, debt instruments
                      or deposits and may include, for example, (i) commercial
                      paper rated within the highest rating category by a NRSRO
                      at the time of investment, or, if not rated, determined by
                      the Advisor to be of comparable quality; (ii) obligations
                      (certificates of deposit, time deposits, bank master
                      notes, and bankers' acceptances) of
 
                                       22
<PAGE>   179
 
                      thrift institutions, savings and loans, U.S. commercial
                      banks (including foreign branches of such banks), and U.S.
                      and foreign branches of foreign banks, provided that such
                      institutions (or, in the case of a branch, the parent
                      institution) have total assets of $1 billion or more as
                      shown on their last published financial statements at the
                      time of investment; (iii) short-term corporate obligations
                      rated within the three highest rating categories by a
                      NRSRO (e.g., at least A by S&P or A by Moody's) at the
                      time of investment, or, if not rated, determined by the
                      Advisor to be of comparable quality; (iv) general
                      obligations issued by the U.S. Government and backed by
                      its full faith and credit, and obligations issued or
                      guaranteed as to principal and interest by agencies or
                      instrumentalities of the U.S. Government (e.g.,
                      obligations issued by Farmers Home Administration,
                      Government National Mortgage Association, Federal Farm
                      Credit Bank and Federal Housing Administration); (v)
                      receipts, including TRs, TIGRs and CATS; (vi) repurchase
                      agreements involving such obligations; (vii) loan
                      participations issued by a bank in the United States with
                      assets exceeding $1 billion and for which the underlying
                      loan is issued by borrowers in whose obligations the Fund
                      may invest; (viii) money market funds and (ix) foreign
                      commercial paper.
 
                        Certain of the obligations in which a Fund may invest
                      may be variable or floating rate instruments, may involve
                      conditional or unconditional demand features and may
                      include variable amount master demand notes.
 
                        MORTGAGE-BACKED SECURITIES--Securities generally issued
                      or guaranteed by U.S. government agencies such as GNMA,
                      FNMA, or FHLMC. GNMA mortgage-backed certificates are
                      mortgage-backed securities of the modified pass-through
                      type, which means that both interest and principal
                      payments (including prepayments) are passed through
                      monthly to the holder of the certificate. Each GNMA
                      certificate evidences an interest in a specific pool of
                      mortgage loans insured by the Federal Housing
                      Administration or the Farmers Home Administration or
                      guaranteed by the Veterans Administration. FNMA, a
                      federally-chartered and stockholder-owned corporation,
                      issues pass-through certificates which are guaranteed as
                      to payment of principal and interest by FNMA. FHLMC, a
                      corporate instrumentality of the United States, issues
                      participation certificates which represent an interest in
                      mortgages held in FHLMC's portfolio. FHLMC guarantees the
                      timely payment of interest and the ultimate collection of
                      principal. Securities issued or guaranteed by FNMA and
                      FHLMC are not backed by the full faith and credit of the
                      United States. There can be no assurance that the U.S.
                      government would provide financial support to FNMA or
                      FHLMC if necessary in the future.
 
                        Although payments on certain mortgage-related securities
                      may be guaranteed by a third party or otherwise similarly
                      secured, the market value of such securities is not
                      secured and may fluctuate significantly because of changes
                      in interest rates
 
                                       23
<PAGE>   180
 
                      and changes in prepayment levels. Thus, for example, if a
                      Fund purchases a mortgage-related security at a premium,
                      that portion may be lost if there is a decline in the
                      market value of the security whether due to changes in
                      interest rates or prepayments of the underlying mortgage
                      collateral. As with other interest-bearing securities, the
                      prices of mortgage-related securities are inversely
                      affected by changes in interest rates. However, although
                      the value of a mortgage-related security may decline when
                      interest rates rise, the converse is not necessarily true
                      because in periods of declining interest rates the
                      mortgages underlying the securities are prone to
                      prepayment which results in amounts being available for
                      reinvestment which are likely to be invested at a lower
                      interest rate. For this and other reasons, the stated
                      maturity of a mortgage-related security may be shortened
                      by unscheduled prepayments on the underlying mortgages
                      and, accordingly, it is not possible to predict accurately
                      the security's return to a Fund. In addition, regular
                      payments received on mortgage-related securities include
                      both interest and principal. No assurance can be given as
                      to the return a Fund will receive when these amounts are
                      reinvested. As a consequence, mortgage-related securities
                      may be a less effective means of "locking in" interest
                      rates than other types of debt securities having the same
                      stated maturity, may have less potential for capital
                      appreciation and may be considered riskier investments as
                      a result.
 
                        Adjustable rate mortgage securities ("ARMS") are
                      pass-through certificates representing ownership interests
                      in a pool of adjustable rate mortgages and the resulting
                      cash flow from those mortgages. Unlike conventional debt
                      securities, which provide for periodic (usually
                      semi-annual) payments of interest and payments of
                      principal at maturity or on specified call dates, ARMs
                      provide for monthly payments based on a pro rata share of
                      both periodic interest and principal payments and
                      prepayments of principal on the underlying mortgage pool
                      (less GNMA's, FNMA's, or FHLMC's fees and any applicable
                      loan servicing fees).
 
                        Collateralized mortgage obligations ("CMOs") are bonds
                      generally issued by single purpose, stand-alone finance
                      subsidiaries or trusts established by financial
                      institutions, government agencies, investment banks, or
                      other similar institutions, and collateralized by pools of
                      mortgage loans. Payments of principal and interest on the
                      collateral mortgages are used to pay debt service on the
                      CMO. In a CMO, a series of bonds or certificates is issued
                      in multiple classes. Each class of CMOs, often referred to
                      as a "tranche," is issued at a specific coupon rate and
                      has a stated maturity or final distribution date. The
                      principal and interest payment on the underlying mortgages
                      may be allocated among the classes of CMOs in several
                      ways. Typically, payments of principal, including any
                      prepayments, on the underlying mortgages would be applied
                      to the classes in the order of their respective stated
                      maturities or final distribution dates, so that no payment
                      of
 
                                       24
<PAGE>   181
 
                      principal will be made on CMOs of a class until all CMOs
                      of other classes having earlier stated maturities or final
                      distribution dates have been paid in full.
 
                        One or more classes of CMOs may have coupon rates that
                      reset periodically based on an index, such as the London
                      Interbank Offered Rate ("LIBOR"). Each Fund may purchase
                      fixed, adjustable, or "floating" rate CMOs that are
                      collateralized by fixed rate or adjustable rate mortgages
                      that are guaranteed as to payment of principal and
                      interest by an agency or instrumentality of the U.S.
                      government or are directly guaranteed as to payment of
                      principal and interest by the issuer, which guarantee is
                      collateralized by U.S. government securities or is
                      collateralized by privately issued fixed rate or
                      adjustable rate mortgages.
 
                        Securities such as zero-coupon obligations,
                      mortgage-backed and asset-backed securities, and
                      collateralized mortgage obligations ("CMOs") will have
                      greater price volatility then other fixed-income
                      obligations. Because declining interest rates may lead to
                      prepayment of underlying mortgages, automobile sales
                      contracts or credit card receivables, the prices of
                      mortgage-related and asset-backed securities may not rise
                      with a decline in interest rates. Mortgage-backed and
                      asset-backed securities and CMOs are extremely sensitive
                      to the rate of principal prepayment. Similarly, callable
                      corporate bonds also present risk of prepayment. During
                      periods of falling interest rates, securities that can be
                      called or prepaid may decline in value relative to similar
                      securities that are not subject to call or prepayment.
 
                        Real Estate Mortgage Investment Conduits ("REMICs") are
                      private entities formed for the purpose of holding a fixed
                      pool of mortgages secured by an interest in real property.
                      REMICs are similar to CMOs in that they issue multiple
                      classes of securities.
 
                        MUNICIPAL FORWARDS--Municipal Forwards are forward
                      commitments for the purchase of tax-exempt bonds with a
                      specified coupon to be delivered by an issuer at a future
                      date, typically exceeding 45 days but normally less than
                      one year after the commitment date. Municipal forwards are
                      normally used as a refunding mechanism for bonds that may
                      only be redeemed on a designated future date. As with
                      forward commitments and when-issued securities, municipal
                      forwards are subject to market fluctuations due to
                      changes, real or anticipated, in market interest rates
                      between the commitment date and the settlement date and
                      will have the effect of leveraging the Fund's assets.
                      Municipal forwards may be considered to be illiquid
                      investments. The Fund will maintain liquid, high-grade
                      securities in a segregated account in an amount at least
                      equal to the purchase price of the municipal forward.
 
                        MUNICIPAL SECURITIES--Municipal securities consist of
                      (i) debt obligations issued by or on behalf of public
                      authorities to obtain funds to be used for
 
                                       25
<PAGE>   182
 
                      various public facilities, for refunding outstanding
                      obligations, for general operating expenses and for
                      lending such funds to other public institutions and
                      facilities, and (ii) certain private activity and
                      industrial development bonds issued by or on behalf of
                      public authorities to obtain funds to provide for the
                      construction, equipment, repair or improvement of
                      privately operated facilities. Municipal notes include
                      general obligation notes, tax anticipation notes, revenue
                      anticipation notes, bond anticipation notes, certificates
                      of indebtedness, demand notes and construction loan notes.
                      Municipal bonds include general obligation bonds, revenue
                      or special obligation bonds, private activity and
                      industrial development bonds. General obligation bonds are
                      backed by the taxing power of the issuing municipality.
                      Revenue bonds are backed by the revenues of a project or
                      facility, tolls from a toll bridge, for example. The
                      payment of principal and interest on private activity and
                      industrial development bonds generally is dependent solely
                      on the ability of the facility's user to meet its
                      financial obligations and the pledge, if any, of real and
                      personal property so financed as security for such
                      payment.
 
                        PARTICIPATION INTERESTS--Participation interests are
                      interests in municipal securities from financial
                      institutions such as commercial and investment banks,
                      savings and loan associations and insurance companies.
                      These interests may take the form of participations,
                      beneficial interests in a trust, partnership interests or
                      any other form of indirect ownership that allows the Fund
                      to treat the income from the investment as exempt from
                      federal income tax. The Fund invests in these
                      participation interests in order to obtain credit
                      enhancement or demand features that would not be available
                      through direct ownership of the underlying municipal
                      securities.
 
                        RECEIPTS--Interests in separately traded interest and
                      principal component parts of U.S. Treasury obligations
                      that are issued by banks and brokerage firms and are
                      created by depositing Treasury notes and Treasury bonds
                      into a special account at a custodian bank. The custodian
                      holds the interest and principal payments for the benefit
                      of the registered owners of the certificates of such
                      receipts. The custodian arranges for the issuance of the
                      certificates or receipts evidencing ownership and
                      maintains the register. Receipts include "Treasury
                      Receipts" ("TR's"), "Treasury Investment Growth Receipts"
                      ("TIGR's"), and "Certificates of Accrual on Treasury
                      Securities" ("CATS"). TR's, TIGR's and CATS are sold as
                      zero coupon securities, which means that they are sold at
                      a substantial discount and redeemed at face value at their
                      maturity date without interim cash payments of interest or
                      principal. This discount is accreted over the life of the
                      security, and such accretion will constitute the income
                      earned on the security for both accounting and tax
                      purposes. Because of these features, such securities may
                      be subject to greater interest rate volatility than
                      interest-paying securities. See also "Federal Taxation."
 
                                       26
<PAGE>   183
 
                        REPURCHASE AGREEMENTS--Agreements whereby a Fund will
                      acquire securities from approved financial institutions or
                      registered broker-dealers that agree to repurchase the
                      securities at a mutually agreed-upon date and price. The
                      repurchase agreements entered into by the Funds will
                      provide that the underlying security at all times shall
                      have a value equal to 102% of the resale price stated in
                      the agreement. Repurchase agreements involving government
                      securities are not subject to a Fund's fundamental
                      investment limitation on purchasing securities of any one
                      issuer. If the seller defaults on its repurchase
                      obligation or becomes insolvent, the Fund holding such
                      obligations would suffer a loss to the extent that either
                      the proceeds from a sale of the underlying portfolio
                      securities were less than the repurchase price or the
                      Fund's disposition of the securities was delayed pending
                      court action. Securities subject to repurchase agreements
                      will be held by a qualified custodian or in the Federal
                      Reserve/Treasury book-entry system. Repurchase agreements
                      are considered to be loans by a Fund under the Investment
                      Company Act of 1940 (the "1940 Act").
 
                        REVERSE REPURCHASE AGREEMENTS--A Fund may borrow funds
                      for temporary purposes by entering into reverse repurchase
                      agreements, provided such action is consistent with the
                      Fund's investment objective and fundamental investment
                      restrictions; as a matter of non-fundamental policy, each
                      Fund intends to limit such investments to no more than 10%
                      of the value of its total assets. Pursuant to a reverse
                      repurchase agreement, a Fund will sell portfolio
                      securities to financial institutions such as banks or to
                      broker-dealers, and agree to repurchase the securities at
                      a mutually agreed-upon date and price. A Fund intends to
                      enter into reverse repurchase agreements only to avoid
                      otherwise selling securities during unfavorable market
                      conditions to meet redemptions. At the time a Fund enters
                      into a reverse repurchase agreement, it will place in a
                      segregated custodial account assets such as U.S.
                      Government securities or other liquid, high-quality debt
                      securities consistent with the Fund's investment objective
                      having a value equal to 102% of the repurchase price
                      (including accrued interest), and will subsequently
                      monitor the account to ensure that an equivalent value is
                      maintained. Reverse repurchase agreements involve the risk
                      that the market value of the securities sold by a Fund may
                      decline below the price at which a Fund is obligated to
                      repurchase the securities. Reverse repurchase agreements
                      are considered to be borrowings by a Fund under the 1940
                      Act.
 
                        RULE 144A SECURITIES--Rule 144A Securities are
                      securities that have not been registered under the
                      Securities Act of 1933, but which may be traded between
                      certain qualified institutional investors, including
                      investment companies. The absence of a secondary market
                      may affect the value of the Rule 144A Securities. The
                      Board of Trustees of the Group has established guidelines
                      and procedures to be utilized to determine the liquidity
                      of such securities.
 
                                       27
<PAGE>   184
 
                        SECURITIES ISSUED ON A FORWARD COMMITMENT BASIS OR
                      WHEN-ISSUED SECURITIES--Securities purchased for delivery
                      beyond the normal settlement date at a stated price and
                      yield and which thereby involve a risk that the yield
                      obtained in the transaction will be less than that
                      available in the market when delivery takes place. When a
                      Fund agrees to purchase when-issued securities or enter
                      into forward commitments, the Group's custodian will be
                      instructed to set aside cash or liquid portfolio
                      securities equal to the amount of the commitment in a
                      segregated account. A Fund will generally not pay for such
                      securities and no income will accrue on the securities
                      until they are received. These securities are recorded as
                      an asset and are subject to changes in value based upon
                      changes in the general level of interest rates. Therefore,
                      the purchase of securities on a "when-issued" basis or
                      forward commitments may increase the risk of fluctuations
                      in a Fund's net asset value.
 
                        SECURITIES LENDING--During the time portfolio securities
                      are on loan from a Fund, the borrower will pay the Fund
                      any dividends or interest paid on the securities. In
                      addition, loans will be subject to termination by the Fund
                      or the borrower at any time and, while a Fund will
                      generally not have the right to vote securities on loan,
                      it will terminate the loan and regain the right to vote if
                      that is considered important with respect to the
                      investment. While the lending of securities may subject a
                      Fund to certain risks, such as delays or an inability to
                      regain the securities in the event the borrower were to
                      default on its lending agreement or enter into bankruptcy,
                      a Fund will receive 100% collateral in the form of cash or
                      U.S. Government securities. This collateral will be valued
                      daily by the lending agent, with oversight by the Advisor,
                      and, should the market value of the loaned securities
                      increase, the borrower will be required to furnish
                      additional collateral to the Fund.
 
                        SECURITIES SUBJECT TO A PUT FEATURE--A "put" feature
                      permits a Fund to sell a fixed income security at a fixed
                      price prior to maturity. The underlying fixed income
                      securities subject to a put may be sold at any time at the
                      market rates. However, unless the put was an integral part
                      of the fixed income security as originally issued, it may
                      not be marketable or assignable. Generally, a premium is
                      paid for a put feature or a put feature is purchased
                      separately which results in a lower yield than would
                      otherwise be available for the same fixed income
                      securities.
 
                        TAX-EXEMPT COMMERCIAL PAPER--Commercial paper, which is
                      commercial paper issued by governments and political
                      sub-divisions.
 
                        TIME DEPOSITS--Non-negotiable receipts issued by U.S. or
                      foreign banks in exchange for the deposit of funds. Like
                      certificates of deposit, they earn a specified rate of
                      interest over a definite period of time; however, they
                      cannot be
 
                                       28
<PAGE>   185
 
                      traded in the secondary market. Time deposits with a
                      withdrawal penalty are considered to be illiquid
                      securities.
 
                        U.S. GOVERNMENT AGENCY SECURITIES--Certain Federal
                      agencies have been established as instrumentalities of the
                      U.S. Government to supervise and finance certain types of
                      activities. Issues of these agencies, while not direct
                      obligations of the U.S. Government, are either backed by
                      the full faith and credit of the United States (e.g., GNMA
                      securities) or supported by the issuing agencies' right to
                      borrow from the U.S. Treasury. The issues of other
                      agencies are supported only by the credit of the
                      instrumentality (e.g., FNMA securities).
 
                        U.S. TREASURY OBLIGATIONS--Bills, notes, and bonds
                      issued by the U.S. Treasury, as well as separately traded
                      interest and principal component parts of such obligations
                      known as Separately Traded Registered Interest and
                      Principal Securities ("STRIPS") that are transferable
                      through the Federal book-entry system.
 
                        U.S. Government Securities generally do not involve the
                      credit risks associated with investments in other types of
                      fixed-income securities, although, as a result, the yields
                      available from U.S. Government Securities are generally
                      lower than the yields available from otherwise comparable
                      corporate fixed-income securities. Like other fixed-income
                      securities, however, the values of U.S. Government
                      Securities change as interest rates fluctuate.
                      Fluctuations in the value of portfolio securities will in
                      many cases not affect interest income on existing
                      portfolio securities, but will be reflected in the Fund's
                      net asset value. Because the magnitude of these
                      fluctuations will generally be greater at times when a
                      Fund's average maturity is longer, under certain market
                      conditions the Fund may invest in short-term investments
                      yielding lower current income rather than investing in
                      higher yielding longer-term securities.
 
                        VARIABLE AND FLOATING RATE INSTRUMENTS--Obligations that
                      may carry variable or floating rates of interest, may
                      involve conditional or unconditional demand features and
                      may include variable amount master demand notes. The
                      interest rates on these securities may be reset daily,
                      weekly, quarterly or some other reset period, and may have
                      a floor or ceiling on interest rate changes. There is a
                      risk that the current interest rate on such obligations
                      may not accurately reflect existing market interest rates.
                      A demand instrument with a demand notice period exceeding
                      seven days may be considered illiquid if there is no
                      secondary market for such security.
 
                        WARRANTS--Securities that entitle the holder to buy a
                      proportionate amount of common stock at a specified price
                      for a limited or unlimited period of time. Warrants are
                      often freely transferable and are traded on major stock
                      exchanges.
 
                                       29
<PAGE>   186
 
                        YANKEE BONDS--Dollar denominated securities issued by
                      foreign-domiciled issuers that obligate the issuer to pay
                      the bondholder a specified sum of money, usually
                      semiannually, and to repay the principal amount of the
                      loan at maturity. Sovereign bonds are bonds issued by the
                      governments of foreign countries. Supranational bonds are
                      those issued by supranational entities, such as the World
                      Bank and European Investment Bank. Canadian bonds are
                      bonds issued by Canadian provinces.
 
                        ZERO-COUPON OBLIGATIONS--Non-income producing securities
                      evidencing ownership of future interest and principal
                      payments on bonds. These obligations pay no current
                      interest and are typically sold at prices greatly
                      discounted from par value. The return on a zero-coupon
                      obligation, when held to maturity, equals the difference
                      between the par value and the original purchase price.
 
                        For federal income tax purposes, the difference between
                      the par value and the original issue price (original issue
                      discount) is included in the income of a holder of a
                      zero-coupon obligation over the term of the obligation
                      even though the interest is not paid until maturity. The
                      amount included in income is determined under a constant
                      interest rate method. In addition, if an obligation is
                      purchased subsequent to its original issue, a holder such
                      as the Income Funds may elect to include market discount
                      in income currently on a ratable accrual method or a
                      constant interest rate method. Market discount is the
                      difference between the obligation's "adjusted issue price"
                      (the original issue price plus original issue discount
                      accrued to date) and the holder's purchase price. If no
                      such election is made, gain on the disposition of a market
                      discount obligation is treated as ordinary income (rather
                      than capital gain) to the extent it does not exceed the
                      accrued market discount.
 
                        Zero-coupon obligations have greater price volatility
                      than other fixed-income obligations of similar maturity
                      and such obligations will be purchased when the yield
                      spread, in light of the obligation's duration, is
                      considered advantageous.
 
                                       30
<PAGE>   187
 
              HIGHMARK CALIFORNIA INTERMEDIATE TAX-FREE BOND FUND
                            INVESTMENT PORTFOLIO OF
                                 HIGHMARK FUNDS
                   For further information (including current
                  yield, purchase and redemption information),
                              call 1-800-433-6884
 
INVESTMENT ADVISOR
Pacific Alliance Capital Management,
a division of Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
CUSTODIAN
Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
ADMINISTRATOR & DISTRIBUTOR
SEI Fund Resources and
SEI Financial Services Company
Oaks, Pennsylvania 19456
 
LEGAL COUNSEL
Ropes & Gray
One Franklin Square
1301 K Street, N.W., Suite 800 East
Washington, D.C. 20005
 
AUDITORS
Deloitte & Touche LLP
1700 Courthouse Plaza Northeast
Dayton, OH 45402
 
  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS IN CONNECTION WITH THE OFFERING
MADE BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR
REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY HIGHMARK OR
ITS DISTRIBUTOR. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFERING BY HIGHMARK OR
BY THE DISTRIBUTOR IN ANY JURISDICTION IN WHICH SUCH OFFERING MAY NOT LAWFULLY
BE MADE.
 
NOT FDIC INSURED
<PAGE>   188
                               - Convertible
                                 Securities Fund  

                                   Prospectus

                                Fiduciary Shares

                                 March 28, 1997

84826-A(3/97)                 [LOGO] HIGHMARK(SM)
                                     FUNDS

<PAGE>   189
 
                                 HIGHMARK FUNDS
 
                          CONVERTIBLE SECURITIES FUND
 
  HighMark Funds ("HighMark") is an open-end, diversified, registered investment
company that offers a convenient means of investing in one or more
professionally managed portfolios of securities. This Prospectus relates to
HighMark's Convertible Securities Fund.
 
                                FIDUCIARY SHARES
 
  HighMark's Fiduciary Shares are offered to the following investors: (i)
fiduciary, advisory, agency, custodial and other similar accounts maintained
with Union Bank of California, N.A. or its affiliates; (ii) SelectIRA accounts
established with The Bank of California, N.A. and invested in any of HighMark's
Equity or Fixed Income Funds prior to June 20, 1994, which have remained
continuously open thereafter and which are not considered to be fiduciary
accounts; (iii) Shareholders who currently own Shares of HighMark's Equity or
Fixed Income Funds that were purchased prior to June 20, 1994 within an account
registered in their name with the Funds; and (iv) present and retired directors,
officers and employees (and their spouses and children under the age of 21) of
Union Bank of California, N.A., HighMark's current or former distributors or
their respective affiliated companies who currently own Shares of HighMark Funds
which were purchased before April 30, 1997.
 
  This Prospectus sets forth concisely the information about HighMark and the
Convertible Securities Fund that a prospective investor should know before
investing. Investors are advised to read this Prospectus and retain it for
future reference. A Statement of Additional Information dated the same date as
this Prospectus has been filed with the Securities and Exchange Commission and
is available without charge by writing the Distributor, SEI Financial Services
Company, Oaks, Pennsylvania 19456, or by calling 1-800-433-6884. The Statement
of Additional Information is incorporated into this Prospectus by reference.
This Prospectus relates only to the Fiduciary Shares of the Convertible
Securities Fund. Interested persons who wish to obtain a prospectus for the
other Funds of HighMark may contact the Distributor at the above address and
telephone number.
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
HIGHMARK'S SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK, INCLUDING UNION BANK OF CALIFORNIA, N.A., BANK OF
TOKYO-MITSUBISHI, LIMITED OR ANY OF THEIR AFFILIATES OR CORRESPONDENTS.
HIGHMARK'S SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT INSURANCE
CORPORATION OR ANY OTHER GOVERNMENT AGENCY. INVESTMENT IN HIGHMARK INVOLVES
RISKS, INCLUDING POSSIBLE LOSS OF THE PRINCIPAL AMOUNT INVESTED.
 
March 28, 1997
Fiduciary Shares
<PAGE>   190
 
                                    SUMMARY
 
HIGHMARK FUNDS ("HIGHMARK") is an open-end, diversified, registered investment
company providing a convenient way to invest in professionally managed
portfolios of securities. The following provides basic information about the
Fiduciary Shares of the HighMark Convertible Securities Fund (the "Convertible
Securities Fund" or the "Fund"). This summary is qualified in its entirety by
reference to the more detailed information provided elsewhere in the Prospectus
and in the Statement of Additional Information.
 
WHAT IS THE FUND'S INVESTMENT OBJECTIVE? The Fund seeks a high level of current
income and capital appreciation by investing in convertible securities. (See
"INVESTMENT OBJECTIVE")
 
WHAT ARE THE FUND'S PERMITTED INVESTMENTS? The Fund invests primarily in
convertible securities, including bonds, debentures, notes and preferred stocks
convertible into common stock. (See "INVESTMENT POLICIES")
 
WHAT ARE THE RISKS INVOLVED WITH AN INVESTMENT IN THE FUND? The investment
policies of the Fund entail certain risks and considerations of which an
investor should be aware. The market value of the Fund's fixed income
investments will change in response to interest rate changes and other factors.
During periods of falling interest rates, the value of outstanding fixed income
securities generally rise. Conversely, during periods of rising interest rates,
the values of such securities generally decline. The Fund may invest up to 35%
of its assets in convertible bonds rated lower than Baa by Moody's Investors
Service, Inc. ("Moody's") or BBB by Standard & Poor's Corporation ("S&P") and as
low as Caa by Moody's or CCC by S&P, which are lower-quality, higher-yielding,
high-risk debt securities. (See "Risk Factors")
 
ARE MY INVESTMENTS INSURED? HighMark's Shares are not federally insured by the
FDIC or any other government agency. Any guarantee by the U.S. Government, its
agencies or any instrumentalities of the securities in which any Fund invests
guarantees only the payment of principal and interest on the guaranteed
security, and does not guarantee the total return or value of the security or
total return or value of Shares of that Fund.
 
WHO IS THE ADVISOR? Pacific Alliance Capital Management, a division of Union
Bank of California, N.A., serves as the Advisor to HighMark. (See "The Advisor")
 
WHO IS THE SUB-ADVISOR? Bank of Tokyo-Mitsubishi Trust Company serves as the
Sub-Advisor to the Convertible Securities Fund. (See "The Sub-Advisor")
 
WHO IS THE ADMINISTRATOR? SEI Fund Resources serves as the Administrator of
HighMark. (See "The Administrator")
 
WHO IS THE CUSTODIAN? Union Bank of California, N.A., (the "Bank") serves as the
custodian of HighMark's assets. (See "The Custodian")
 
WHO IS THE DISTRIBUTOR? SEI Financial Services Company acts as distributor of
HighMark's Shares. (See "The Distributor")
 
HOW DO I PURCHASE AND REDEEM SHARES? Purchases and redemptions may be made
through the Distributor on days on which both the New York Stock Exchange and
the Federal Reserve wire system are open for
 
                                        2
<PAGE>   191
 
business ("Business Days"). The minimum initial investment is generally $1,000.
A purchase order will be effective if the Distributor receives an order prior to
1:00 p.m., Pacific time (4:00 p.m., Eastern time). Purchase orders for Shares
will be executed at a per Share price equal to the asset value next determined
after the purchase order is effective. Redemption orders must be placed prior to
1:00 p.m., Pacific time (4:00 p.m., Eastern time) on any Business Day for the
order to be effective that day. (See "PURCHASE AND REDEMPTION OF SHARES")
 
HOW ARE DIVIDENDS PAID? Substantially all of the net investment income
(exclusive of capital gains) of the Fund is distributed in the form of monthly
dividends to Shareholders of record. Any capital gain is distributed at least
annually. Distributions are paid in additional Shares unless the Shareholder
elects to take the payment in cash. (See "DIVIDENDS")
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
Summary................................................................................   2
Convertible Securities Fund Fee Table..................................................   4
Fund Description.......................................................................   5
Investment Objective...................................................................   5
Investment Policies....................................................................   5
General................................................................................   6
 Money Market Instruments..............................................................   6
 Illiquid and Restricted Securities....................................................   6
 Lending of Portfolio Securities.......................................................   7
 Other Investments.....................................................................   7
 Risk Factors..........................................................................   8
 Risks Associated with Convertible Securities..........................................   9
Investment Limitations.................................................................   9
 Portfolio Turnover....................................................................  10
Purchase and Redemption of Shares......................................................  10
Exchange Privileges....................................................................  11
Dividends..............................................................................  12
Federal Taxation.......................................................................  13
Service Arrangements...................................................................  14
 The Advisor...........................................................................  14
 The Sub-Advisor.......................................................................  15
 Administrator.........................................................................  16
 The Transfer Agent....................................................................  17
 Shareholder Service Plan..............................................................  17
 Distributor...........................................................................  17
 Banking Laws..........................................................................  17
 Custodian.............................................................................  18
General Information....................................................................  18
  Description of Highmark & Its Shares.................................................  18
  Performance Information..............................................................  18
  Miscellaneous........................................................................  19
Description of Permitted Investments...................................................  20
</TABLE>
 
                                        3
<PAGE>   192
 
                     CONVERTIBLE SECURITIES FUND FEE TABLE
 
<TABLE>
<CAPTION>
                                                                                                       CONVERTIBLE
                                                                                                     SECURITIES FUND
                                                                                                        FIDUCIARY
                                                                                                         SHARES
                                                                                                     ---------------
<S>                                                                                                  <C>
SHAREHOLDER TRANSACTION EXPENSES(A)
  Maximum Sales Load Imposed on Purchases (as a percentage of offering price)......................       0.00%
  Maximum Sales Load Imposed on Reinvested Dividends (as a percentage of offering price)...........          0%
  Deferred Sales Load (as a percentage of original purchase price or redemption proceeds, as                 0%
    applicable)....................................................................................
  Redemption Fees (as a percentage of amount redeemed, if applicable)(b)...........................          0%
  Exchange Fee(a)..................................................................................       $   0
ANNUAL OPERATING EXPENSES (as a percentage of net assets)
  Management Fees (after voluntary reduction)(c)...................................................       0.59%
  12b-1 Fees.......................................................................................       0.00%
  Other Expenses (after voluntary reduction)(d)....................................................       0.26%
                                                                                                            ---
  Total Fund Operating Expenses (after voluntary reduction)(e).....................................       0.85%
                                                                                                     ==============
</TABLE>
 
  EXAMPLE: You would pay the following expenses on a $1,000 investment, assuming
(1) 5% annual return and (2) redemption at the end of each time period.
 
<TABLE>
<CAPTION>
                                                                 1 YEAR   3 YEARS   5 YEARS   10 YEARS
                                                                 ------   -------   -------   --------
<S>                                                              <C>      <C>       <C>       <C>
Convertible Securities Fund Fiduciary Shares....................   $9       $27       $47       $105
</TABLE>
 
  The purpose of the tables above is to assist an investor in the Convertible
Securities Fund in understanding the various costs and expenses that a
Shareholder will bear directly or indirectly. For a more complete discussion of
the Fund's annual operating expenses, see SERVICE ARRANGEMENTS below. THE
FOREGOING EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE
EXPENSES. ACTUAL EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN.
- ---------
 
(a) Certain entities (including Union Bank of California and its affiliates)
     making investments in the Convertible Securities Fund on behalf of their
     customers may charge customers fees for services provided in connection
     with the investment in, redemption of, and exchange of Shares. (See
     PURCHASE AND REDEMPTION OF SHARES, EXCHANGE PRIVILEGES, and SERVICE
     ARRANGEMENTS below)
 
(b) A wire redemption charge is deducted from the amount of a wire redemption
     payment made at the request of a Shareholder.
 
(c) Absent voluntary fee waivers, MANAGEMENT FEES would be .60% for the
     Fiduciary Shares of the Convertible Securities Fund.
 
(d) OTHER EXPENSES for the Convertible Securities Fund are based on the Fund's
     estimated expenses for the current fiscal year. Absent voluntary fee
     waivers, OTHER EXPENSES would be .53% for the Fiduciary Shares of the
     Convertible Securities Fund.
 
(e) Absent voluntary fee waivers, TOTAL FUND OPERATING EXPENSES would be: 1.13%
     for the Fiduciary Shares of the Convertible Securities Fund.
 
                                        4
<PAGE>   193
 
FUND
DESCRIPTION             HighMark Funds ("HighMark") is an open-end, diversified,
                      registered investment company that currently offers units
                      of beneficial interest ("Shares") in sixteen separate
                      investment portfolios ("Funds"). All of the Funds are
                      advised by Pacific Alliance Capital Management (the
                      "Advisor"), a division of Union Bank of California, N.A.
                      Shareholders may purchase Shares of selected Funds through
                      two separate classes (the "Retail" and "Fiduciary"
                      classes). These classes may have different sales charges
                      and other expenses, which may affect performance.
                      Information regarding HighMark's other Funds and other
                      classes is contained in separate prospectuses that may be
                      obtained from HighMark's Distributor, SEI Financial
                      Services Company, at Oaks, Pennsylvania 19456, or by
                      calling 1-800-433-6884.
 
                        For information concerning those investors who qualify
                      to purchase Fiduciary Shares, see PURCHASE AND REDEMPTION
                      OF SHARES below. (Fiduciary Shares may be hereinafter
                      referred to as "Shares.")
 
INVESTMENT
OBJECTIVE               The Convertible Securities Fund seeks a high level of
                      current income and capital appreciation by investing in
                      convertible securities.
 
                        The investment objective and certain of the investment
                      limitations of the Convertible Securities Fund may not be
                      changed without a vote of the holders of a majority of the
                      outstanding Shares of the Fund (as defined under GENERAL
                      INFORMATION--Miscellaneous below). There can be no
                      assurance that the Fund will achieve its investment
                      objective.
 
INVESTMENT
POLICIES                Under normal market conditions, at least 65% of the
                      Convertible Securities Fund's assets will be invested in
                      convertible securities consisting of bonds, debentures,
                      notes and preferred stocks each of which are convertible
                      into common stock. In general, a convertible security is a
                      fixed-income security such as a bond (which typically pays
                      a fixed annual rate of interest) or preferred stock (which
                      typically pays a fixed dividend), that may be converted at
                      a stated price within a specified period of time into a
                      specified number of shares of common stock of the issuing
                      company, or of a different company. A convertible security
                      may be subject to redemption by the issuer, but only after
                      a particular date and under certain circumstances
                      (including a specified price) established upon issue. If a
                      convertible security held by the Fund is called for
                      redemption, the Fund could be required to tender it for
                      redemption, convert it into the underlying common stock,
                      or sell it to a third party. Common stock received upon
                      conversion will be sold when, in the opinion of the
                      Sub-Advisor, it is advisable to do so.
 
                        Because of its conversion feature, the market value of
                      convertible preferred stock tends to move together with
                      the market value of the underlying common stock. As a
                      result, the Fund's selection of convertible securities is
                      based, to a great extent, on the potential for capital
                      appreciation that may exist in the underlying
 
                                        5
<PAGE>   194
 
                      common stocks. The value of convertible securities is also
                      affected by prevailing interest rates, the credit quality
                      of the issuer and any call provisions. Investments in
                      convertible securities generally entail less volatility
                      than investments in the common stocks of the same issuers.
                      Nevertheless, it is the fixed income component of these
                      securities that is often deemed by the ratings agencies to
                      be high risk or speculative. The Fund may invest up to 35%
                      of its assets in convertible bonds rated lower than Baa by
                      Moody's or BBB by S&P and as low as Caa by Moody's or CCC
                      by S&P, which are lower-quality, higher-yielding, high-
                      risk debt securities (commonly known as "junk bonds"). The
                      Fund may also invest in unrated convertible securities
                      which, in the Sub-Advisor's opinion, are of comparable
                      quality to such rated securities. See "Risk Factors."
 
                        In the event that a security owned by the Fund is
                      downgraded below the stated ratings categories, the
                      Advisor or SubAdvisor will take appropriate action with
                      regard to the security.
 
                        The Fund may invest any remaining assets in common
                      stocks; securities issued or guaranteed by the U.S.
                      government or its agencies or instrumentalities; corporate
                      bonds rated Baa or better by Moody's or BBB or better by
                      S&P (investment grade bonds); shares of other investment
                      companies with similar investment objectives; high grade
                      commercial paper; money market funds; money market
                      instruments and cash; floating and variable rate notes;
                      repurchase agreements; dollardenominated securities of
                      foreign issuers; and Standard and Poor's Depositary
                      Receipts ("SPDRs").
 
GENERAL               Money Market Instruments
 
                        Under normal market conditions, the Fund may invest up
                      to 35% of its total assets in money market instruments.
                      When market conditions indicate a temporary "defensive"
                      investment strategy as determined by the Advisor or Sub-
                      Advisor, the Fund may invest more than 35% of its total
                      assets in money market instruments. The Fund will not be
                      pursuing its investment objective to the extent that a
                      substantial portion of its assets are invested in money
                      market instruments.
 
                      Illiquid and Restricted Securities
 
                        The Fund shall limit investment in illiquid securities
                      to 15% or less of its net assets. Generally, an "illiquid
                      security" is any security that cannot be disposed of
                      promptly and in the ordinary course of business at
                      approximately the amount at which the Fund has valued the
                      instrument. The absence of a trading market can make it
                      difficult to ascertain the market value of illiquid
                      securities. The Fund may purchase restricted securities
                      which have not been registered under the Securities Act of
                      1933 (e.g., Rule 144A Securities and Section 4(2)
                      commercial paper)
 
                                        6
<PAGE>   195
 
                      subject to policies approved by the Board of Trustees. See
                      "INVESTMENT RESTRICTIONS" in the Statement of Additional
                      Information.
 
                      Lending of Portfolio Securities
 
                        In order to generate additional income, the Fund may
                      lend its portfolio securities to broker-dealers, banks or
                      other institutions. The Fund may lend portfolio securities
                      in an amount representing up to 33 1/3% of the value of
                      the Fund's total assets.
 
                      Other Investments
 
                        The Fund may enter into repurchase agreements and
                      reverse repurchase agreements.
 
                        The Fund may enter into forward commitments or purchase
                      securities on a "when-issued" basis. The Fund expects that
                      commitments by it to enter into forward commitments or
                      purchase when-issued securities will not exceed 25% of the
                      value of the Fund's total assets under normal market
                      conditions. The Fund does not intend to purchase
                      when-issued securities or forward commitments for
                      speculative or leveraging purposes but only for the
                      purpose of acquiring portfolio securities.
 
                        The Fund may invest up to 5% of its total assets in the
                      securities of any one registered investment company, but
                      may not own more than 3% of the securities of any one
                      registered investment company or invest more than 10% of
                      its assets in the securities of other registered
                      investment companies. In accordance with an exemptive
                      order issued to HighMark by the SEC, such other registered
                      investment company securities may include securities of a
                      money market fund of HighMark, and such companies may
                      include registered investment companies for which the
                      Advisor or a Sub-Advisor to a Fund of HighMark, or an
                      affiliate of such Advisor or Sub-Advisor serves as
                      investment advisor, administrator or distributor. Because
                      other registered investment companies employ an investment
                      advisor, such investment by the Fund may cause
                      Shareholders to bear duplicative fees. The Advisor will
                      waive its fees attributable to the assets of the investing
                      Fund invested in a money market fund of HighMark, and, to
                      the extent required by applicable law, the Advisor will
                      waive its fees attributable to the assets of the Fund
                      invested in any investment company. Some Funds are subject
                      to additional restrictions on investment in other
                      investment companies. See "INVESTMENT RESTRICTIONS" in the
                      Statement of Additional Information.
 
                        For further information, see "DESCRIPTION OF PERMITTED
                      INVESTMENTS."
 
                                        7
<PAGE>   196
 
                      Risk Factors
 
                        In addition to credit risk which relates to the ability
                      of an issuer to make payments of principal and interest,
                      all types of bonds are also subject to market risk. Market
                      risk relates to changes in a security's value as a result
                      of interest rate changes generally. An increase in
                      interest rates will generally reduce the value of the
                      investments in the Fund and a decline in interest rates
                      will generally increase the value of those investments.
                      Accordingly, the net asset value of the Fund's shares will
                      vary as a result of changes in the value of the securities
                      in the Fund's portfolio. Therefore, an investment in the
                      Fund may decline in value, resulting in a loss of
                      principal. Because interest rates vary, it is impossible
                      to predict the income or yield of the Fund for any
                      particular period.
 
                        The Fund's shares will fluctuate in value with the value
                      of the underlying securities in its portfolio. Because of
                      their fixed income features, however, convertible
                      securities are expected to fluctuate in value to a lesser
                      degree than the common stock into which they are
                      convertible.
 
                        Changes by recognized rating agencies in the rating of
                      any fixed income security and in the ability of an issuer
                      to make payments of interest and principal also affect the
                      value of these investments. Changes in the value of Fund
                      securities will not affect cash income derived from these
                      securities, but will affect the Fund's net asset value.
 
                        The Fund may invest in securities issued or guaranteed
                      by foreign corporations or foreign governments, their
                      political subdivisions, agencies or instrumentalities and
                      obligations of supranational entities such as the World
                      Bank and the Asian Development Bank. Any investments in
                      these securities will be in accordance with a Fund's
                      investment objective and policies, and are subject to
                      special risks, such as adverse political and economic
                      developments, possible seizure, nationalization or
                      expropriation of foreign investments, less stringent
                      disclosure requirements, changes in foreign currency
                      exchange rates, increased costs associated with the
                      conversion of foreign currency into U.S. dollars, the
                      possible establishment of exchange controls or taxation at
                      the source or the adoption of other foreign governmental
                      restrictions. To the extent that the Fund may invest in
                      securities of foreign issuers that are not traded on any
                      exchange, there is a further risk that these securities
                      may not be readily marketable. The Convertible Securities
                      Fund will not hold foreign currency for investment
                      purposes.
 
                        Securities rated BBB by S&P or Fitch or Baa by Moody's
                      are considered investment grade, but are deemed by these
                      rating services to have some speculative characteristics,
                      and adverse economic conditions or other circumstances are
                      more likely to lead to a weakened capacity to make
                      principal and interest payments than is the case with
                      higher grade bonds.
 
                                        8
<PAGE>   197
 
                      Risks Associated with Convertible Securities
 
                        Investments in lower-rated debt securities (i.e.,
                      securities rated lower than BBB by S&P or Baa by Moody's),
                      in which the Fund may invest, bear certain risks,
                      including the risk that such securities may be thinly
                      traded, which can adversely affect the price at which
                      these securities can be sold and can result in high
                      transaction costs. Market quotations may not be available,
                      and therefore, judgment plays a greater role in valuing
                      lower-rated debt securities than securities for which more
                      extensive quotations and last sale information are
                      available. Adverse publicity and changing investor
                      perceptions may affect the ability of outside pricing
                      services to value lower-rated debt securities, and the
                      Fund's ability to dispose of these securities.
 
                        The market price of lower-rated debt securities may
                      decline significantly in periods of general economic
                      difficulty which may follow periods of rising interest
                      rates. During an economic downturn or a prolonged period
                      of rising interest rates, the ability of issuers of
                      lower-rated debt to meet their payment obligation on these
                      securities may be impaired.
 
                        The Fund may invest in securities which are rated as low
                      as 'Caa' by Moody's or 'CCC' by S&P. Securities rated
                      'Caa' by Moody's are of poor standing and may be in
                      default or may present elements of danger with respect to
                      principal or interest. Debt rated 'CCC' by S&P is regarded
                      as having speculative characteristics with respect to
                      capacity to pay interest and repay principal. In the event
                      of adverse business, financial, and economic conditions,
                      debt rated 'CCC' is not likely to have the capacity to
                      repay principal.
 
INVESTMENT
LIMITATIONS             The Fund may not:
 
                        1) Purchase securities of any issuer (except securities
                      issued or guaranteed by the U.S. Government or its
                      agencies and instrumentalities and repurchase agreements
                      involving such securities) if as a result more than 5% of
                      the total assets of the Fund would be invested in the
                      securities of such issuer. This restriction applies to 75%
                      of the Fund's assets.
 
                        2) Purchase any securities which would cause more than
                      25% of the total assets of the Fund to be invested in the
                      securities of one or more issuers conducting their
                      principal business activities in the same industry,
                      provided that this limitation does not apply to
                      investments in the obligations issued or guaranteed by the
                      U.S. Government or its agencies and instrumentalities and
                      repurchase agreements involving such securities, and
                      provided further, that utilities as a group will not be
                      considered to be one industry, and wholly-owned
                      subsidiaries organized to finance the operations of their
                      parent companies will be considered to be in the same
                      industries as their parent companies.
 
                                        9
<PAGE>   198
 
                        3) Make loans, except that the Fund may (a) purchase or
                      hold debt instruments in accordance with its investment
                      objective and policies, (b) enter into repurchase
                      agreements, and (c) engage in securities lending as
                      described in this Prospectus and in the Statement of
                      Additional Information.
 
                        The foregoing percentages will apply at the time of the
                      purchase of a security. The investment limitations listed
                      above are fundamental policies the substance of which may
                      not be changed without a vote of a majority of the
                      outstanding Shares of the Fund. Additional fundamental and
                      non-fundamental investment limitations are set forth in
                      the Statement of Additional Information.
 
                      Portfolio Turnover
 
                        The Fund's portfolio turnover rate be a factor
                      preventing a sale or purchase when the Advisor or
                      Sub-Advisor believes investment considerations warrant.
                      The Fund's portfolio turnover rate may vary greatly from
                      year to year as well as within a particular year. High
                      portfolio turnover rates generally will result in
                      correspondingly higher brokerage and other transactions
                      costs to the Fund and could involve the realization of
                      capital gains that would be taxable when distributed to
                      Shareholders of the Fund. See "FEDERAL TAXATION."
 
PURCHASE AND
REDEMPTION
OF SHARES               Fiduciary Shares may be purchased at net asset value.
                      Only the following investors qualify to purchase the
                      Convertible Securities Fund's Fiduciary Shares: (i)
                      fiduciary, advisory, agency, custodial and other similar
                      accounts maintained with Union Bank of California, N.A. or
                      its affiliates; (ii) SelectIRA accounts established with
                      The Bank of California, N.A. and invested in any of
                      HighMark's Equity or Fixed Income Funds prior to June 20,
                      1994, which have remained continuously open thereafter and
                      which are not considered to be fiduciary accounts; (iii)
                      Shareholders who currently own Shares of HighMark's Equity
                      or Fixed Income Funds that were purchased prior to June
                      20, 1994 within an account registered in their name with
                      the Funds; and (iv) present and retired directors,
                      officers and employees (and their spouses and children
                      under the age of 21) of Union Bank of California, N.A.,
                      HighMark's current or former distributors or their
                      respective affiliated companies who currently own Shares
                      of HighMark Funds which were purchased before April 30,
                      1997.
 
                        Purchases and redemptions of Shares of the Convertible
                      Securities Fund may be made on days on which the New York
                      Stock Exchange and the Federal Reserve wire system are
                      open for business ("Business Days"). The minimum initial
                      investment is generally $1,000 and the minimum subsequent
                      investment is generally $100. For present and retired
                      directors, officers, and employees (and their spouses and
                      children under the age of 21) of Union Bank of California,
                      SEI Financial Services Company and their affiliates, the
                      minimum initial investment is $250 and the minimum
                      subsequent investment is $50. The Fund's initial and
 
                                       10
<PAGE>   199
 
                      subsequent minimum purchase amounts may be waived in the
                      Distributor's discretion if purchases are made in
                      connection with Individual Retirement Accounts, Keoghs,
                      payroll deduction plans, or 401(k) or similar program
                      accounts. Shareholders may place orders by telephone.
 
                        Purchase orders will be effective if the Distributor
                      receives an order before 1:00 p.m., Pacific time (4:00
                      p.m., Eastern time) and the custodian receives Federal
                      funds before the close of business on the next Business
                      Day. The purchase price of Shares of a Fund is the net
                      asset value next determined after a purchase order is
                      received and accepted by HighMark. The net asset value per
                      Share of a Fund is determined by dividing the total market
                      value of a Fund's investments and other assets, less any
                      liabilities, by the total number of outstanding Shares of
                      a Fund. Net asset value per Share is determined daily as
                      of 1:00 p.m., Pacific time (4:00 p.m., Eastern time) on
                      any Business Day. Purchases will be made in full and
                      fractional Shares of HighMark calculated to three decimal
                      places. HighMark reserves the right to reject a purchase
                      order when the Distributor determines that it is not in
                      the best interest of HighMark and/or its Shareholders to
                      accept such order.
 
                        Shares of the Convertible Securities Fund are offered
                      only to residents of states in which the Shares are
                      eligible for purchase.
 
                        Shareholders who desire to redeem shares of HighMark
                      must place their redemption orders prior to 1:00 p.m.,
                      Pacific time (4:00 p.m., Eastern time), on any Business
                      Day for the order to be accepted on that Business Day. The
                      redemption price is the net asset value of the Fund next
                      determined after receipt by the Distributor of the
                      redemption order. Payment on redemption will be made as
                      promptly as possible and, in any event, within seven
                      calendar days after the redemption order is received. The
                      Fund reserves the right to make payment on redemptions in
                      securities rather than cash.
 
                        Neither HighMark's transfer agent nor HighMark will be
                      responsible for any loss, liability, cost or expense for
                      acting upon wire instructions or upon telephone
                      instructions that it reasonably believes to be genuine.
                      HighMark and its transfer agent will each employ
                      reasonable procedures to confirm that telephone
                      instructions are genuine. Such procedures may include
                      taping of telephone conversations. If market conditions
                      are extraordinarily active or other extraordinary
                      circumstances exist, and you experience difficulties
                      placing redemption orders by telephone, you may wish to
                      consider placing your order by other means.
 
EXCHANGE
PRIVILEGES              As indicated under GENERAL INFORMATION--Description of
                      HighMark & Its Shares, certain of HighMark's Funds issue
                      two classes of Shares (Retail Shares and Fiduciary
                      Shares); as of the date of this Prospectus, the
                      Distribution Plan and distribution fee payable thereunder
                      are applicable only to such Fund's
 
                                       11
<PAGE>   200
 
                      Retail Shares. A Shareholder's eligibility to exchange
                      into a particular class of Shares will be determined at
                      the time of the exchange. The Shareholder must supply, at
                      the time of the exchange, the necessary information to
                      permit confirmation of qualification.
 
                        Each Fund's Shares may be exchanged for Shares of the
                      class of the various other Funds of HighMark which the
                      Shareholder qualifies to purchase directly so long as the
                      Shareholder maintains the applicable minimum account
                      balance in each Fund in which he or she owns Shares and
                      satisfies the minimum initial and subsequent purchase
                      amounts of the Fund into which the Shares are exchanged.
                      Shareholders may exchange their Fiduciary Shares for
                      Fiduciary Shares of another Fund on the basis of the
                      relative net asset value of the Fiduciary Shares
                      exchanged. Shareholders may also exchange Fiduciary Shares
                      of a Fund for Retail Shares of another Fund. Under such
                      circumstances, the cost of the acquired Retail Shares will
                      be the net asset value per Share plus the appropriate
                      sales load.
 
                        Exchanges will be made on the basis of the relative net
                      asset values of the Shares exchanged plus any applicable
                      sales charge. Exchanges are subject to the terms and
                      conditions stated herein and the terms and conditions
                      stated in the respective prospectuses of the Funds.
 
                        Certain entities (including participating organizations
                      and Union Bank of California and its affiliates), however,
                      may charge customers a fee with respect to exchanges made
                      on the customer's behalf. Information about these charges,
                      if any, can be obtained by the entity effecting the
                      exchange and this Prospectus should be read in conjunction
                      with that information.
 
                        A Shareholder wishing to exchange Shares in the
                      Convertible Securities Fund may do so by contacting the
                      transfer agent at 1-800-433-6884. Exchanges will be
                      effected on any Business Day at the net asset value of the
                      Funds involved in the exchange next determined after the
                      exchange request is received by the transfer agent.
 
                        An exchange is considered to be a sale of Shares for
                      federal income tax purposes on which a Shareholder may
                      realize a capital gain or loss. Exchange privileges may be
                      exercised only in those states where Shares of such other
                      Funds of HighMark may legally be sold. HighMark may
                      materially amend or terminate the exchange privileges
                      described herein upon sixty days' notice.
 
DIVIDENDS               The net income of the Convertible Securities Fund is
                      declared and paid monthly as a dividend to Shareholders of
                      record at the close of business on the day of declaration.
                      Net realized capital gains are distributed at least
                      annually to Shareholders of record.
 
                                       12
<PAGE>   201
 
                        Shareholders will automatically receive all income
                      dividends and capital gains distributions in additional
                      full and fractional Shares of the Fund at net asset value
                      as of the date of declaration (which is also the
                      ex-dividend date), unless the Shareholder elects to
                      receive such dividends or distributions in cash.
                      Shareholders wishing to receive their dividends in cash
                      (or wishing to revoke a previously made election) must
                      notify the transfer agent at P.O. Box 8416, Boston, MA
                      02266-8416, and such election (or revocation thereof) will
                      become effective with respect to dividends and
                      distributions having record dates after notice has been
                      received. Dividends paid in additional Shares receive the
                      same tax treatment as dividends paid in cash.
 
FEDERAL
TAXATION                The Convertible Securities Fund intends to qualify for
                      treatment as a "regulated investment company" under the
                      Internal Revenue Code of 1986, as amended (the "Code"),
                      and to distribute substantially all of its net investment
                      income and net realized capital gains so that the Fund is
                      not required to pay federal taxes on these amounts.
 
                        Distributions of ordinary income and/or an excess of net
                      short-term capital gain over net long-term capital loss
                      are treated for federal income tax purposes as ordinary
                      income to Shareholders. The 70 percent dividends received
                      deduction for corporations generally will apply to these
                      distributions to the extent the distribution represents
                      amounts that would qualify for the dividends received
                      deduction when received by the Fund if the Fund were a
                      regular corporation, and to the extent designated by the
                      Fund as so qualifying. Distributions by the Fund of the
                      excess of net long-term capital gain over net short-term
                      capital loss is taxable to Shareholders as long-term
                      capital gain in the year with respect to which it is
                      received, regardless of how long the Shareholder has held
                      Shares of the Fund. Such distributions are not eligible
                      for the dividends received deduction. If a Shareholder
                      disposes of Shares in the Fund at a loss before holding
                      such Shares for longer than six months, such loss will be
                      treated as a long-term capital loss to the extent the
                      Shareholder has received long-term capital gain dividends
                      on the Shares.
 
                        Prior to purchasing Shares of the Convertible Securities
                      Fund, the impact of dividends or capital gain
                      distributions that are expected to be declared or have
                      been declared, but not paid, should be carefully
                      considered. Dividends or capital gain distributions
                      received after a purchase of Shares are subject to federal
                      income taxes, although in some circumstances, the
                      dividends or distributions may be, as an economic matter,
                      a return of capital to the Shareholder. A Shareholder
                      should consult his or her advisor for specific advice
                      about the tax consequences to the Shareholder of investing
                      in the Fund.
 
                                       13
<PAGE>   202
 
                        Fund investments in foreign securities may be subject to
                      withholding taxes at the source on dividend or interest
                      payments. In that case, the Fund's yield on those
                      securities would be decreased. The Fund does not expect to
                      be eligible to elect to permit shareholders to claim a
                      credit or deduction on their income tax return for their
                      pro rata share of such taxes.
 
                        Fund transactions in foreign currencies and hedging
                      activities may give rise to ordinary income or loss to the
                      extent such income or loss results from fluctuations in
                      value of the foreign currency concerned. In addition, such
                      activities will likely produce a difference between book
                      income and taxable income. This difference may cause a
                      portion of the Fund's income distributions to constitute a
                      return of capital for tax purposes or require the Fund to
                      make distributions exceeding book income to qualify as a
                      regulated investment company for tax purposes.
 
                        Investments in an entity that qualifies as a "passive
                      foreign investment company" under the Code could subject
                      the Fund to a U.S. federal income tax or other charge on
                      certain "excess distributions" received with respect to
                      the investment, and on the proceeds from disposition of
                      the investment.
 
                        Additional information regarding federal taxes is
                      contained in the Statement of Additional Information.
                      However, the foregoing and the material in the Statement
                      of Additional Information are only brief summaries of some
                      of the important tax considerations generally affecting
                      the Fund and its Shareholders. In addition, the foregoing
                      discussion and the federal tax information in the
                      Statement of Additional Information are based on tax laws
                      and regulations which are in effect as of the date of this
                      Prospectus; these laws and regulations may subsequently
                      change, and such changes could be retroactive.
 
                        Shareholders will be advised at least annually as to the
                      federal income tax status of distributions made during the
                      year.
 
SERVICE
ARRANGEMENTS          The Advisor
                        Pacific Alliance Capital Management, a division of Union
                      Bank of California, N.A., serves as the Convertible
                      Securities Fund's investment advisor. Subject to the
                      general supervision of HighMark's Board of Trustees, the
                      Advisor manages the Fund in accordance with its investment
                      objective and policies, makes decisions with respect to
                      and places orders for all purchases and sales of the
                      Fund's investment securities, and maintains the Fund's
                      records relating to such purchases and sales.
 
                        For the expenses assumed and services provided by the
                      Advisor as the Fund's investment advisor, Union Bank of
                      California receives a fee from the Convertible Securities
                      Fund, computed daily and paid monthly, at the annual rate
                      of sixty one-hundredths of one percent (.60%) of the
                      Fund's average daily net assets.
 
                                       14
<PAGE>   203
 
                      Depending on the size of the Fund, this fee may be higher
                      than the advisory fee paid by most mutual funds, although
                      the Board of Trustees believes it will be comparable to
                      advisory fees paid by many funds having similar objectives
                      and policies. Union Bank of California may from time to
                      time agree to voluntarily reduce its advisory fee. While
                      there can be no assurance that Union Bank of California
                      will choose to make such an agreement, any voluntary
                      reductions in Union Bank of California's advisory fee will
                      lower the Fund's expenses, and thus increase the Fund's
                      yield and total return, during the period such voluntary
                      reductions are in effect. As of the date of this
                      Prospectus, the Convertible Securities Fund had not yet
                      commenced operations.
 
                        On April 1, 1996, The Bank of California, N.A.,
                      HighMark's then investment advisor, combined with Union
                      Bank and the resulting bank changed its name to Union Bank
                      of California, N.A. At the same time, the banks'
                      investment management divisions were combined. Each of
                      Union Bank and The Bank of California, N.A. (or their
                      predecessor banks) has been in banking since the early
                      1900's and, historically, each has had significant
                      investment functions within its trust and investment
                      division. UnionBanCal Corporation, the parent of Union
                      Bank of California, N.A., is a publicly held corporation,
                      but is principally held by The Bank of Tokyo-Mitsubishi,
                      Ltd. As of September 30, 1996, Union Bank of California
                      and its subsidiaries had approximately $28.7 billion in
                      commercial assets. Pacific Alliance Capital Management is
                      a division of Union Bank of California's Trust and
                      Investment Management Group, which, as of June 30, 1996,
                      had approximately $13.4 billion of assets under
                      management. The Advisor, with a team of approximately 45
                      stock and bond research analysts, portfolio managers and
                      traders, has been providing investment management services
                      to individuals, institutions and large corporations since
                      1917.
 
                      The Sub-Advisor
 
                        The Advisor and Bank of Tokyo-Mitsubishi Trust Company
                      (the "Sub-Advisor") have entered into an investment
                      sub-advisory agreement relating to the Convertible
                      Securities Fund (the "Investment Sub-Advisory Agreement").
                      Under the Investment Sub-Advisory Agreement, the
                      Sub-Advisor makes the day-to-day investment decisions for
                      the assets of the Fund, subject to the supervision of, and
                      policies established by the Advisor and the Trustees of
                      HighMark.
 
                        Bank of Tokyo-Mitsubishi Trust Company, headquartered at
                      1251 Avenue of the Americas, New York, New York 10116, and
                      with offices at 100 Broadway, New York, New York 10005,
                      operates as a wholly-owned subsidiary of The Bank of
                      Tokyo-Mitsubishi, Ltd. The Sub-Advisor was formed by the
                      combination on April 1, 1996, of Bank of Tokyo Trust
                      Company, a wholly-owned subsidiary of The Bank of Tokyo,
                      Ltd., and Mitsubishi Bank Trust Company of New York, a
 
                                       15
<PAGE>   204
 
                      wholly-owned subsidiary of The Mitsubishi Bank, Ltd. Bank
                      of Tokyo Trust Company was the surviving entity, and
                      changed its name to Bank of Tokyo-Mitsubishi Trust
                      Company. Prior to the combination, sub-advisory services
                      were provided by Bank of Tokyo Trust Company. Bank of
                      Tokyo Trust Company was established in 1955, and has
                      provided trust services since that time and management
                      services since 1965.
 
                        The Sub-Advisor serves as portfolio manager to bank
                      common funds, employee benefit funds and personal trust
                      accounts, managing assets in money market, equity and
                      fixed income portfolios. As of June 30, 1996, Bank of
                      Tokyo-Mitsubishi Trust Company managed $700 million in
                      individual portfolios and collective funds. In addition,
                      the Sub-Advisor also serves as the Sub-Advisor to
                      HighMark's Emerging Growth, Government Securities and Blue
                      Chip Growth Funds.
 
                        The Sub-Advisor is entitled to a fee, which is
                      calculated daily and paid monthly out of the Advisor's
                      fee, at an annual rate of .30% of the average daily net
                      assets of the Convertible Securities Fund.
 
                        The day-to-day management of the Convertible Securities
                      Fund's investments is the responsibility of a team of
                      investment professionals. Seth E. Shalov will be the team
                      leader for the Convertible Securities Fund. Mr. Shalov has
                      been a Senior Portfolio Manager with the Sub-Advisor and
                      its predecessor, Bank of Tokyo Trust Company since 1987.
 
                      Administrator
 
                        SEI Fund Resources (the "Administrator") and HighMark
                      are parties to an administration agreement (the
                      "Administration Agreement"). Under the terms of the
                      Administration Agreement, the Administrator provides
                      HighMark with certain management services, including all
                      necessary office space, equipment, personnel and
                      facilities.
 
                        The Administrator is entitled to a fee, which is
                      calculated daily and paid monthly, at an annual rate of
                      .20% of the Fund's average daily net assets. The
                      Administrator may waive its fee or reimburse various
                      expenses to the extent necessary to limit the total
                      operating expenses of the Fund's Fiduciary Shares. Any
                      such waiver is voluntary and may be terminated at any time
                      in the Administrator's sole discretion. Currently, the
                      Administrator has agreed to waive its fee to the rate of
                      .18% of the average daily net assets of the Fund.
 
                        Pursuant to a separate agreement with the Administrator,
                      Union Bank of California, N.A. performs sub-administration
                      services on behalf of the Fund, for which it receives a
                      fee paid by the Administrator at the annual rate of up to
                      0.05% of the Fund's average daily net assets. Union Bank
                      of California has voluntarily
 
                                       16
<PAGE>   205
 
                      agreed to reduce this fee to 0.03%, but reserves the right
                      to terminate its waiver at any time in its sole
                      discretion. A description of the services performed by
                      Union Bank of California pursuant to this Agreement is
                      contained in the Statement of Additional Information.
 
                      The Transfer Agent
 
                        State Street Bank and Trust Company serves as the
                      transfer agent, dividend disbursing agent, and as a
                      shareholder servicing agent for the Fiduciary Shares of
                      HighMark, for which services it receives a fee.
 
                      Shareholder Service Plan
 
                        To support the provision of Shareholder services to both
                      classes of Shares, HighMark has adopted a Shareholder
                      Service Plan. A description of the services performed by
                      service providers pursuant to the Shareholder Service Plan
                      is contained in the Statement of Additional Information.
                      In consideration of services provided by any service
                      provider, which may include Union Bank of California,
                      N.A., Bank of Tokyo-Mitsubishi, Ltd., or their respective
                      affiliates, the Fund may pay a fee at the rate of up to
                      0.25% of its average daily net assets to such service
                      provider. The service provider may waive such fees at any
                      time. Any such waiver is voluntary and may be terminated
                      at any time. Currently, such fees are being waived to the
                      rate of 0.00% of average daily net assets.
 
                      Distributor
 
                        SEI Financial Services Company (the "Distributor") and
                      HighMark are parties to a distribution agreement
                      ("Distribution Agreement"). The Distribution Agreement is
                      renewable annually and may be terminated by the
                      Distributor, by a majority vote of the Disinterested
                      Trustees or by a majority vote of the outstanding
                      securities of HighMark upon not more than 60 days written
                      notice by either party, or upon assignment by the
                      Distributor. Fiduciary Shares are not subject to
                      HighMark's Distribution Plan or a distribution fee.
 
                      Banking Laws
 
                        Union Bank of California believes that it may perform
                      the services for the Fund contemplated by its investment
                      advisory agreement with HighMark without a violation of
                      applicable banking laws and regulations. Union Bank of
                      California also believes that it may perform
                      sub-administration and sub-accounting services on behalf
                      of the Fund without a violation of applicable banking laws
                      and regulations. Future changes in federal or state
                      statutes and regulations relating to permissible
                      activities of banks or bank holding companies and their
                      subsidiaries and affiliates, as well as further judicial
                      or administrative decisions or interpretations of present
                      and future statutes and regulations, could change the
                      manner in which Union Bank of California or the Advisor
                      could continue to perform such
 
                                       17
<PAGE>   206
 
                      services for the Fund. For a further discussion of
                      applicable banking laws and regulations, see the Statement
                      of Additional Information.
 
                      Custodian
 
                        Union Bank of California also serves as the custodian
                      and as a shareholder servicing agent for the Convertible
                      Securities Fund. The custodian holds cash securities and
                      other assets of HighMark as required by the 1940 Act.
 
                        Services performed by Union Bank of California, as the
                      Fund's shareholder servicing agent and custodian, as well
                      as the basis of remuneration for such services, are
                      described in the Statement of Additional Information.
 
GENERAL
INFORMATION           Description of HighMark & Its Shares
 
                        HighMark was organized as a Massachusetts business trust
                      on March 10, 1987, and consists of sixteen series of
                      Shares open for investment representing units of
                      beneficial interest in HighMark's Growth Fund, Income
                      Equity Fund, Balanced Fund, Value Momentum Fund, Blue Chip
                      Growth Fund, Emerging Growth Fund, International Equity
                      Fund, Bond Fund, Intermediate-Term Bond Fund, Government
                      Securities Fund, Convertible Securities Fund, California
                      Intermediate Tax-Free Bond Fund, Diversified Money Market
                      Fund, U.S. Government Obligations Money Market Fund, 100%
                      U.S. Treasury Obligations Money Market Fund, and
                      California Tax-Free Money Market Fund. As of the date
                      hereof, no Shares of the Value Momentum Fund, the Blue
                      Chip Growth Fund, the Emerging Growth Fund, the
                      International Equity Fund, the Intermediate-Term Bond
                      Fund, the Convertible Securities Fund, the Government
                      Securities Fund, and the California Intermediate Tax-Free
                      Bond Fund, had been offered for sale in HighMark. Shares
                      of each Fund are freely transferable, are entitled to
                      distributions from the assets of the Fund as declared by
                      the Board of Trustees, and, if HighMark were liquidated,
                      would receive a pro rata share of the net assets
                      attributable to that Fund. Shares are without par value.
 
                        As noted above, pursuant to a Multiple Class Plan on
                      file with the Securities and Exchange Commission
                      permitting the issuance and sale of two classes of Shares
                      in selected Funds, Shares of such Funds have been divided
                      into two classes, designated Retail Shares and Fiduciary
                      Shares. For information regarding the Retail Shares,
                      interested persons may contact the Distributor for a
                      prospectus at 1-800-433-6884.
 
                      Performance Information
 
                        From time to time, HighMark may advertise the aggregate
                      total return, average annual total return, yield and
                      distribution rate with respect to the Fiduciary Shares of
                      the Convertible Securities Fund.
 
                                       18
<PAGE>   207
 
                        The aggregate total return and average annual total
                      return of the Convertible Securities Fund may be quoted
                      for the life of the Fund and for ten-year, five-year and
                      one-year periods, in each case through the most recent
                      calendar quarter. Aggregate total return is determined by
                      calculating the change in the value of a hypothetical
                      $1,000 investment in the Fund over the applicable period
                      that would equate the initial amount invested to the
                      ending redeemable value of the investment. The ending
                      redeemable value includes dividends and capital gain
                      distributions reinvested at net asset value. Average
                      annual total return is calculated by annualizing the
                      Fund's aggregate total return over the relevant number of
                      years. The resulting percentage indicates the average
                      positive or negative investment results that an investor
                      in the Fund would have experienced on an annual basis from
                      changes in Share price and reinvestment of dividends and
                      capital gain distributions.
 
                        The yield of the Fund is determined by annualizing the
                      net investment income per Share of the Fund during a
                      specified thirty-day period and dividing that amount by
                      the per Share public offering price of the Fund on the
                      last day of the period.
 
                        The distribution rate of the Fund is determined by
                      dividing the income and capital gains distributions, or
                      where indicated the income distributions alone, on a Share
                      of the Fund over a twelve-month period by the per Share
                      public offering price of the Fund on the last day of the
                      period.
 
                        The Fund may periodically compare its performance to the
                      performance of other mutual funds tracked by mutual fund
                      rating services (such as Lipper Analytical), financial and
                      business publications and periodicals; broad groups of
                      comparable mutual funds; unmanaged indices which may
                      assume investment of dividends but generally do not
                      reflect deductions for administrative and management
                      costs; or other investment alternatives. The Fund may
                      advertise performance that includes results from periods
                      in which the Fund's assets were managed in a
                      non-registered predecessor vehicle.
 
                        All performance information presented for the Fund is
                      based on past performance and does not predict future
                      performance.
 
                      Miscellaneous
 
                        Shareholders will be sent unaudited semi-annual reports
                      and annual reports audited by independent public
                      accountants.
 
                        Shareholders are entitled to one vote for each Share
                      held in the Fund as determined on the record date for any
                      action requiring a vote by the Shareholders, and a
                      proportionate fractional vote for each fractional Share
                      held. Shareholders of HighMark will vote in the aggregate
                      and not by series or class except (i) as
 
                                       19
<PAGE>   208
 
                      otherwise expressly required by law or when HighMark's
                      Board of Trustees determines that the matter to be voted
                      upon affects only the interests of the Shareholders of a
                      particular series or particular class, and (ii) only
                      Retail Shares will be entitled to vote on matters
                      submitted to a Shareholder vote relating to the
                      Distribution Plan. HighMark is not required to hold
                      regular annual meetings of Shareholders, but may hold
                      special meetings from time to time.
 
                        HighMark's Trustees are elected by Shareholders, except
                      that vacancies may be filled by vote of the Board of
                      Trustees. Trustees may be removed by the Board of
                      Trustees, or by Shareholders at a meeting called for such
                      purpose. For information about how Shareholders may call
                      such a meeting and communicate with other Shareholders for
                      that purpose, see ADDITIONAL INFORMATION-- Miscellaneous
                      in the Statement of Additional Information.
 
                        Inquiries may be directed in writing to SEI Financial
                      Services Company, Oaks, Pennsylvania 19456, or by calling
                      toll free 1-800-433-6884.
 
DESCRIPTION OF
PERMITTED
INVESTMENTS             The following is a description of permitted investments
                      for the HighMark Convertible Securities Fund.
 
                        AMERICAN DEPOSITARY RECEIPTS (ADRs)--ADRs are receipts
                      typically issued by a U.S. financial institution that
                      evidence ownership of underlying securities issued by a
                      foreign issuer.
 
                        ASSET-BACKED SECURITIES (NON-MORTGAGE)--Debt Instruments
                      secured by company receivables, truck and auto loans,
                      leases, and credit card receivables. Such securities are
                      generally issued as pass-through certificates, which
                      represent undivided fractional ownership interests in the
                      underlying pools of assets. Such securities also may be
                      debt instruments, which are also known as collateralized
                      obligations and are generally issued as the debt of a
                      special purpose entity, such as a trust, organized solely
                      for the purpose of owning such assets and issuing such
                      debt. The purchase of non-mortgage asset-backed securities
                      raises risk considerations peculiar to the financing of
                      the instruments underlying such securities. Asset-backed
                      securities entail prepayment risk, which may vary
                      depending on the type of asset, but is generally less than
                      the prepayment risk associated with mortgage-backed
                      securities.
 
                        Like mortgages underlying mortgage-backed securities,
                      underlying automobile sales contracts or credit card
                      receivables are subject to substantial prepayment risk,
                      which may reduce the overall return to certificate
                      holders. Nevertheless, principal prepayment rates tend not
                      to vary as much in response to changes in interest rates
                      and the short-term nature of the underlying car loans or
                      other receivables tend to dampen the impact of any change
                      in the prepayment level. Certificate holders may also
                      experience delays in payment on the certificates if
 
                                       20
<PAGE>   209
 
                      the full amounts due on underlying sales contracts or
                      receivables are not realized by the trust because of
                      unanticipated legal or administrative costs of enforcing
                      the contracts or because of depreciation or damage to the
                      collateral (usually automobiles) securing certain
                      contracts, or other factors. If consistent with their
                      investment objectives and policies, the Fund may invest in
                      other asset-backed securities that may be developed in the
                      future.
 
                        BANKERS' ACCEPTANCES--Bills of exchange or time drafts
                      drawn on and accepted by commercial banks. They are used
                      by corporations to finance the shipment and storage of
                      goods and to furnish dollar exchange. Maturities are
                      generally six months or less.
 
                        CERTIFICATES OF DEPOSIT--Negotiable interest-bearing
                      instruments with a specific maturity. Certificates of
                      deposit are issued by banks and savings and loan
                      institutions in exchange for the deposit of funds and
                      normally can be traded in the secondary market prior to
                      maturity.
 
                        COMMERCIAL PAPER--Unsecured short-term promissory notes
                      issued by corporations and other entities. Maturities on
                      these issues vary from a few days to nine months. Purchase
                      of such instruments involves a risk of default by the
                      issuer.
 
                        CONVERTIBLE BONDS AND CONVERTIBLE PREFERRED STOCK--
                      Convertible Bonds are bonds convertible into a set number
                      of shares of another form of security (usually common
                      stock) at a prestated price. Convertible bonds have
                      characteristics similar to both fixed-income and equity
                      securities. Convertible preferred stock is a class of
                      capital stock that pays dividends at a specified rate and
                      that has preference over common stock in the payment of
                      dividends and the liquidation of assets. Convertible
                      preferred stock is preferred stock exchangeable for a
                      given number of common stock shares, and has
                      characteristics similar to both fixed-income and equity
                      securities. Because of the conversion feature, the market
                      value of convertible bonds and convertible preferred stock
                      tend to move together with the market value of the
                      underlying stock. As a result, a Fund's selection of
                      convertible bonds and convertible preferred stock is
                      based, to a great extent, on the potential for capital
                      appreciation that may exist in the underlying stock. The
                      value of convertible bonds and convertible preferred stock
                      is also affected by prevailing interest rates, the credit
                      quality of the issuer and any call provisions.
 
                        DERIVATIVES--Instruments whose value is derived from an
                      underlying contract, index or security, or any combination
                      thereof, including futures, options (e.g., puts and
                      calls), options on futures, swap agreements, and some
                      mortgage-backed securities (CMOs, REMICs, IOs and POs).
                      See elsewhere in this "DESCRIPTION OF PERMITTED
                      INVESTMENTS" for discussions of these various instruments,
                      and see "INVESTMENT OBJECTIVES" and "INVEST-
 
                                       21
<PAGE>   210
 
                      MENT POLICIES" for more information about any policies and
                      limitations applicable to their use.
 
                        FUTURES AND OPTIONS ON FUTURES--Some futures strategies,
                      including selling futures, buying puts and writing calls,
                      reduce a Fund's exposure to price fluctuations. Other
                      strategies, including buying futures, writing puts and
                      buying calls, tend to increase market exposure. Futures
                      and options may be combined with each other in order to
                      adjust the risk and return characteristics of the overall
                      portfolio.
 
                        Options and futures can be volatile instruments, and
                      involve certain risks that, if applied at an inappropriate
                      time, could negatively impact a Fund's return.
 
                        INVESTMENT GRADE BONDS--Interest-bearing or discounted
                      government or corporate securities that obligate the
                      issuer to pay the bondholder a specified sum of money,
                      usually at specific intervals, and to repay the principal
                      amount of the loan at maturity. Investment grade bonds are
                      those rated BBB or better by S&P or Baa or better by
                      Moody's or similarly rated by other NRSROs, or, if not
                      rated, determined to be of comparable quality by the
                      Advisor.
 
                        LOWER-RATED, HIGHER-YIELDING, HIGH-RISK DEBT
                      SECURITIES--High-yield, high-risk securities consist of
                      securities rated Ba or lower by Moody's or BB or lower by
                      S&P. Lower-rated debt securities are considered
                      speculative and involve greater risk of loss than
                      investment grade debt securities, and are more sensitive
                      to changes in the issuer's capacity to pay. For a
                      description of the debt securities ratings, see the
                      "Appendix."
 
                        MONEY MARKET INSTRUMENTS--Short-term, debt instruments
                      or deposits and may include, for example, (i) commercial
                      paper rated within the highest rating category by a NRSRO
                      at the time of investment, or, if not rated, determined by
                      the Advisor to be of comparable quality; (ii) obligations
                      (certificates of deposit, time deposits, bank master
                      notes, and bankers' acceptances) of thrift institutions,
                      savings and loans, U.S. commercial banks (including
                      foreign branches of such banks), and U.S. and foreign
                      branches of foreign banks, provided that such institutions
                      (or, in the case of a branch, the parent institution) have
                      total assets of $1 billion or more as shown on their last
                      published financial statements at the time of investment;
                      (iii) short-term corporate obligations rated within the
                      three highest rating categories by a NRSRO (e.g., at least
                      A by S&P or A by Moody's) at the time of investment, or,
                      if not rated, determined by the Advisor to be of
                      comparable quality; (iv) general obligations issued by the
                      U.S. Government and backed by its full faith and credit,
                      and obligations issued or guaranteed as to principal and
                      interest by agencies or instrumentalities of the U.S.
                      Government (e.g., obligations issued by Farmers Home
                      Administration, Government National Mortgage Association,
                      Federal Farm Credit Bank and
 
                                       22
<PAGE>   211
 
                      Federal Housing Administration); (v) receipts, including
                      TRs, TIGRs and CATS; (vi) repurchase agreements involving
                      such obligations; (vii) loan participations issued by a
                      bank in the United States with assets exceeding $1 billion
                      and for which the underlying loan is issued by borrowers
                      in whose obligations the Fund may invest; (viii) money
                      market funds and (ix) foreign commercial paper.
 
                        Certain of the obligations in which a Fund may invest
                      may be variable or floating rate instruments, may involve
                      conditional or unconditional demand features and may
                      include variable amount master demand notes.
 
                        MORTGAGE-BACKED SECURITIES--Securities generally issued
                      or guaranteed by U.S. government agencies such as GNMA,
                      FNMA, or FHLMC. GNMA mortgage-backed certificates are
                      mortgage-backed securities of the modified pass-through
                      type, which means that both interest and principal
                      payments (including prepayments) are passed through
                      monthly to the holder of the certificate. Each GNMA
                      certificate evidences an interest in a specific pool of
                      mortgage loans insured by the Federal Housing
                      Administration or the Farmers Home Administration or
                      guaranteed by the Veterans Administration. FNMA, a
                      federally-chartered and stockholder-owned corporation,
                      issues pass-through certificates which are guaranteed as
                      to payment of principal and interest by FNMA. FHLMC, a
                      corporate instrumentality of the United States, issues
                      participation certificates which represent an interest in
                      mortgages held in FHLMC's portfolio. FHLMC guarantees the
                      timely payment of interest and the ultimate collection of
                      principal. Securities issued or guaranteed by FNMA and
                      FHLMC are not backed by the full faith and credit of the
                      United States. There can be no assurance that the U.S.
                      government would provide financial support to FNMA or
                      FHLMC if necessary in the future.
 
                        Although payments on certain mortgage-related securities
                      may be guaranteed by a third party or otherwise similarly
                      secured, the market value of such securities is not
                      secured and may fluctuate significantly because of changes
                      in interest rates and changes in prepayment levels. Thus,
                      for example, if a Fund purchases a mortgage-related
                      security at a premium, that portion may be lost if there
                      is a decline in the market value of the security whether
                      due to changes in interest rates or prepayments of the
                      underlying mortgage collateral. As with other
                      interest-bearing securities, the prices of
                      mortgage-related securities are inversely affected by
                      changes in interest rates. However, although the value of
                      a mortgage-related security may decline when interest
                      rates rise, the converse is not necessarily true because
                      in periods of declining interest rates the mortgages
                      underlying the securities are prone to prepayment which
                      results in amounts being available for reinvestment which
                      are likely to be invested at a lower interest rate. For
                      this and other reasons, the stated maturity of a
                      mortgage-related security may be shortened by unscheduled
                      prepayments on the underlying mortgages and,
 
                                       23
<PAGE>   212
 
                      accordingly, it is not possible to predict accurately the
                      security's return to a Fund. In addition, regular payments
                      received on mortgage-related securities include both
                      interest and principal. No assurance can be given as to
                      the return a Fund will receive when these amounts are
                      reinvested. As a consequence, mortgage-related securities
                      may be a less effective means of "locking in" interest
                      rates than other types of debt securities having the same
                      stated maturity, may have less potential for capital
                      appreciation and may be considered riskier investments as
                      a result.
 
                        Adjustable rate mortgage securities ("ARMS") are
                      pass-through certificates representing ownership interests
                      in a pool of adjustable rate mortgages and the resulting
                      cash flow from those mortgages. Unlike conventional debt
                      securities, which provide for periodic (usually
                      semi-annual) payments of interest and payments of
                      principal at maturity or on specified call dates, ARMs
                      provide for monthly payments based on a pro rata share of
                      both periodic interest and principal payments and
                      prepayments of principal on the underlying mortgage pool
                      (less GNMA's, FNMA's, or FHLMC's fees and any applicable
                      loan servicing fees).
 
                        Collateralized mortgage obligations ("CMOs") are bonds
                      generally issued by single purpose, stand-alone finance
                      subsidiaries or trusts established by financial
                      institutions, government agencies, investment banks, or
                      other similar institutions, and collateralized by pools of
                      mortgage loans. Payments of principal and interest on the
                      collateral mortgages are used to pay debt service on the
                      CMO. In a CMO, a series of bonds or certificates is issued
                      in multiple classes. Each class of CMOs, often referred to
                      as a "tranche," is issued at a specific coupon rate and
                      has a stated maturity or final distribution date. The
                      principal and interest payment on the underlying mortgages
                      may be allocated among the classes of CMOs in several
                      ways. Typically, payments of principal, including any
                      prepayments, on the underlying mortgages would be applied
                      to the classes in the order of their respective stated
                      maturities or final distribution dates, so that no payment
                      of principal will be made on CMOs of a class until all
                      CMOs of other classes having earlier stated maturities or
                      final distribution dates have been paid in full.
 
                        One or more classes of CMOs may have coupon rates that
                      reset periodically based on an index, such as the London
                      Interbank Offered Rate ("LIBOR"). Each Fund may purchase
                      fixed, adjustable, or "floating" rate CMOs that are
                      collateralized by fixed rate or adjustable rate mortgages
                      that are guaranteed as to payment of principal and
                      interest by an agency or instrumentality of the U.S.
                      government or are directly guaranteed as to payment of
                      principal and interest by the issuer, which guarantee is
                      collateralized by U.S. government securities or is
                      collateralized by privately issued fixed rate or
                      adjustable rate mortgages.
 
                                       24
<PAGE>   213
 
                        Securities such as zero-coupon obligations,
                      mortgage-backed and asset-backed securities, and
                      collateralized mortgage obligations ("CMOs") will have
                      greater price volatility then other fixed-income
                      obligations. Because declining interest rates may lead to
                      prepayment of underlying mortgages, automobile sales
                      contracts or credit card receivables, the prices of
                      mortgage-related and asset-backed securities may not rise
                      with a decline in interest rates. Mortgage-backed and
                      asset-backed securities and CMOs are extremely sensitive
                      to the rate of principal prepayment. Similarly, callable
                      corporate bonds also present risk of prepayment. During
                      periods of falling interest rates, securities that can be
                      called or prepaid may decline in value relative to similar
                      securities that are not subject to call or prepayment.
 
                        Real Estate Mortgage Investment Conduits ("REMICs") are
                      private entities formed for the purpose of holding a fixed
                      pool of mortgages secured by an interest in real property.
                      REMICs are similar to CMOs in that they issue multiple
                      classes of securities.
 
                        OPTIONS--Under a call option, the purchaser of the
                      option has the right to purchase, and the writer (the
                      Fund) the obligation to sell, the underlying security at
                      the exercise price during the option period. A put option
                      gives the purchaser the right to sell, and the writer the
                      obligation to purchase, the underlying security at the
                      exercise price during the option period.
 
                        In addition, certain Funds may buy options on stock
                      indices to invest cash on an interim basis. Such options
                      will be listed on a national securities exchange. In order
                      to close out an option position, a Fund may enter into a
                      "closing purchase transaction"--the purchase of an option
                      on the same security with the same exercise price and
                      expiration date as the option contract previously written
                      on any particular security. When the security is sold, a
                      Fund effects a closing purchase transaction so as to close
                      out any existing option on that security.
 
                        There are risks associated with such investments
                      including the following: (1) the success of a hedging
                      strategy may depend on the ability of the Advisor or
                      Sub-Advisor to predict movements in the prices of
                      individual securities, fluctuations in markets and
                      movements in interest rates; (2) there may be an imperfect
                      correlation between the movement in prices of securities
                      held by a Fund and the price of options; (3) there may not
                      be a liquid secondary market for options; and (4) while a
                      Fund will receive a premium when it writes covered call
                      options, it may not participate fully in a rise in the
                      market value of the underlying security.
 
                        RECEIPTS--Interests in separately traded interest and
                      principal component parts of U.S. Treasury obligations
                      that are issued by banks and brokerage firms and are
                      created by depositing Treasury notes and Treasury bonds
                      into a special account at a custodian bank. The custodian
                      holds the interest and principal
 
                                       25
<PAGE>   214
 
                      payments for the benefit of the registered owners of the
                      certificates of such receipts. The custodian arranges for
                      the issuance of the certificates or receipts evidencing
                      ownership and maintains the register. Receipts include
                      "Treasury Receipts" ("TR's"), "Treasury Investment Growth
                      Receipts" ("TIGR's"), and "Certificates of Accrual on
                      Treasury Securities" ("CATS"). TR's, TIGR's and CATS are
                      sold as zero coupon securities, which means that they are
                      sold at a substantial discount and redeemed at face value
                      at their maturity date without interim cash payments of
                      interest or principal. This discount is accreted over the
                      life of the security, and such accretion will constitute
                      the income earned on the security for both accounting and
                      tax purposes. Because of these features, such securities
                      may be subject to greater interest rate volatility than
                      interest-paying securities. See also "FEDERAL TAXATION."
 
                        REPURCHASE AGREEMENTS--Agreements whereby a Fund will
                      acquire securities from approved financial institutions or
                      registered broker-dealers that agree to repurchase the
                      securities at a mutually agreed-upon date and price. The
                      repurchase agreements entered into by the Funds will
                      provide that the underlying security at all times shall
                      have a value equal to 102% of the resale price stated in
                      the agreement. Repurchase agreements involving government
                      securities are not subject to a Fund's fundamental
                      investment limitation on purchasing securities of any one
                      issuer. If the seller defaults on its repurchase
                      obligation or becomes insolvent, the Fund holding such
                      obligations would suffer a loss to the extent that either
                      the proceeds from a sale of the underlying portfolio
                      securities were less than the repurchase price or the
                      Fund's disposition of the securities was delayed pending
                      court action. Securities subject to repurchase agreements
                      will be held by a qualified custodian or in the Federal
                      Reserve/Treasury book-entry system. Repurchase agreements
                      are considered to be loans by a Fund under the Investment
                      Company Act of 1940 (the "1940 Act").
 
                        REVERSE REPURCHASE AGREEMENTS--A Fund may borrow funds
                      for temporary purposes by entering into reverse repurchase
                      agreements, provided such action is consistent with the
                      Fund's investment objective and fundamental investment
                      restrictions; as a matter of non-fundamental policy, each
                      Fund intends to limit such investments to no more than 10%
                      of the value of its total assets. Pursuant to a reverse
                      repurchase agreement, a Fund will sell portfolio
                      securities to financial institutions such as banks or to
                      broker-dealers, and agree to repurchase the securities at
                      a mutually agreed-upon date and price. A Fund intends to
                      enter into reverse repurchase agreements only to avoid
                      otherwise selling securities during unfavorable market
                      conditions to meet redemptions. At the time a Fund enters
                      into a reverse repurchase agreement, it will place in a
                      segregated custodial account assets such as U.S.
                      Government securities or other liquid, high-quality debt
                      securities consistent with the Fund's investment objective
                      having a value equal to 102% of the repurchase price
                      (including accrued interest), and will
 
                                       26
<PAGE>   215
 
                      subsequently monitor the account to ensure that an
                      equivalent value is maintained. Reverse repurchase
                      agreements involve the risk that the market value of the
                      securities sold by a Fund may decline below the price at
                      which a Fund is obligated to repurchase the securities.
                      Reverse repurchase agreements are considered to be
                      borrowings by a Fund under the 1940 Act.
 
                        RULE 144A SECURITIES--Rule 144A Securities are
                      securities that have not been registered under the
                      Securities Act of 1933, but which may be traded between
                      certain qualified institutional investors, including
                      investment companies. The absence of a secondary market
                      may affect the value of the Rule 144A Securities. The
                      Board of Trustees of the Group has established guidelines
                      and procedures to be utilized to determine the liquidity
                      of such securities.
 
                        SECURITIES ISSUED ON A FORWARD COMMITMENT BASIS OR
                      WHEN-ISSUED SECURITIES--Securities purchased for delivery
                      beyond the normal settlement date at a stated price and
                      yield and which thereby involve a risk that the yield
                      obtained in the transaction will be less than that
                      available in the market when delivery takes place. When a
                      Fund agrees to purchase when-issued securities or enter
                      into forward commitments, the Group's custodian will be
                      instructed to set aside cash or liquid portfolio
                      securities equal to the amount of the commitment in a
                      segregated account. A Fund will generally not pay for such
                      securities and no income will accrue on the securities
                      until they are received. These securities are recorded as
                      an asset and are subject to changes in value based upon
                      changes in the general level of interest rates. Therefore,
                      the purchase of securities on a "when-issued" basis or
                      forward commitments may increase the risk of fluctuations
                      in a Fund's net asset value.
 
                        SECURITIES LENDING--During the time portfolio securities
                      are on loan from a Fund, the borrower will pay the Fund
                      any dividends or interest paid on the securities. In
                      addition, loans will be subject to termination by the Fund
                      or the borrower at any time and, while a Fund will
                      generally not have the right to vote securities on loan,
                      it will terminate the loan and regain the right to vote if
                      that is considered important with respect to the
                      investment. While the lending of securities may subject a
                      Fund to certain risks, such as delays or an inability to
                      regain the securities in the event the borrower were to
                      default on its lending agreement or enter into bankruptcy,
                      a Fund will receive 100% collateral in the form of cash or
                      U.S. Government securities. This collateral will be valued
                      daily by the lending agent, with oversight by the Advisor,
                      and, should the market value of the loaned securities
                      increase, the borrower will be required to furnish
                      additional collateral to the Fund.
 
                        SECURITIES SUBJECT TO A PUT FEATURE--A "put" feature
                      permits a Fund to sell a fixed income security at a fixed
                      price prior to maturity. The underlying fixed income
                      securities subject to a put may be sold at any time at the
 
                                       27
<PAGE>   216
 
                      market rates. However, unless the put was an integral part
                      of the fixed income security as originally issued, it may
                      not be marketable or assignable. Generally, a premium is
                      paid for a put feature or a put feature is purchased
                      separately which results in a lower yield than would
                      otherwise be available for the same fixed income
                      securities.
 
                        STANDARD & POOR'S DEPOSITARY RECEIPTS (SPDRs)--SPDRs are
                      interests in a unit investment trust holding a portfolio
                      of securities linked to the S&P 500 Index. SPDRs closely
                      track the underlying portfolio of securities, trade like a
                      share of common stock and pay periodic dividends
                      proportionate to those paid by the portfolio of stocks
                      that constitutes the S&P 500 Index. For further
                      information regarding SPDRs, see the Statement of
                      Additional Information.
 
                        TAX-EXEMPT COMMERCIAL PAPER--Commercial paper, which is
                      commercial paper issued by governments and political
                      subdivisions.
 
                        TIME DEPOSITS--Non-negotiable receipts issued by U.S. or
                      foreign banks in exchange for the deposit of funds. Like
                      certificates of deposit, they earn a specified rate of
                      interest over a definite period of time; however, they
                      cannot be traded in the secondary market. Time deposits
                      with a withdrawal penalty are considered to be illiquid
                      securities.
 
                        U.S. GOVERNMENT AGENCY SECURITIES--Certain Federal
                      agencies have been established as instrumentalities of the
                      U.S. Government to supervise and finance certain types of
                      activities. Issues of these agencies, while not direct
                      obligations of the U.S. Government, are either backed by
                      the full faith and credit of the United States (e.g., GNMA
                      securities) or supported by the issuing agencies' right to
                      borrow from the U.S. Treasury. The issues of other
                      agencies are supported only by the credit of the
                      instrumentality (e.g., FNMA securities).
 
                        U.S. TREASURY OBLIGATIONS--Bills, notes, and bonds
                      issued by the U.S. Treasury, as well as separately traded
                      interest and principal component parts of such obligations
                      known as Separately Traded Registered Interest and
                      Principal Securities ("STRIPS") that are transferable
                      through the Federal book-entry system.
 
                        U.S. Government Securities generally do not involve the
                      credit risks associated with investments in other types of
                      fixed-income securities, although, as a result, the yields
                      available from U.S. Government Securities are generally
                      lower than the yields available from otherwise comparable
                      corporate fixed-income securities. Like other fixed-income
                      securities, however, the values of U.S. Government
                      Securities change as interest rates fluctuate.
                      Fluctuations in the value of portfolio securities will in
                      many cases not affect interest income on existing
                      portfolio securities, but will be reflected in the Fund's
                      net asset value. Because the magnitude of these
                      fluctuations will generally be greater at times when a
                      Fund's
 
                                       28
<PAGE>   217
 
                      average maturity is longer, under certain market
                      conditions the Fund may invest in short-term investments
                      yielding lower current income rather than investing in
                      higher yielding longer-term securities.
 
                        VARIABLE AND FLOATING RATE INSTRUMENTS--Obligations that
                      may carry variable or floating rates of interest, may
                      involve conditional or unconditional demand features and
                      may include variable amount master demand notes. The
                      interest rates on these securities may be reset daily,
                      weekly, quarterly or some other reset period, and may have
                      a floor or ceiling on interest rate changes. There is a
                      risk that the current interest rate on such obligations
                      may not accurately reflect existing market interest rates.
                      A demand instrument with a demand notice period exceeding
                      seven days may be considered illiquid if there is no
                      secondary market for such security.
 
                        WARRANTS--Securities that entitle the holder to buy a
                      proportionate amount of common stock at a specified price
                      for a limited or unlimited period of time. Warrants are
                      often freely transferable and are traded on major stock
                      exchanges.
 
                        YANKEE BONDS--Dollar denominated securities issued by
                      foreign-domiciled issuers that obligate the issuer to pay
                      the bondholder a specified sum of money, usually
                      semiannually, and to repay the principal amount of the
                      loan at maturity. Sovereign bonds are bonds issued by the
                      governments of foreign countries. Supranational bonds are
                      those issued by supranational entities, such as the World
                      Bank and European Investment Bank. Canadian bonds are
                      bonds issued by Canadian provinces.
 
                        ZERO-COUPON OBLIGATIONS--Non-income producing securities
                      evidencing ownership of future interest and principal
                      payments on bonds. These obligations pay no current
                      interest and are typically sold at prices greatly
                      discounted from par value. The return on a zero-coupon
                      obligation, when held to maturity, equals the difference
                      between the par value and the original purchase price.
 
                        For federal income tax purposes, the difference between
                      the par value and the original issue price (original issue
                      discount) is included in the income of a holder of a
                      zero-coupon obligation over the term of the obligation
                      even though the interest is not paid until maturity. The
                      amount included in income is determined under a constant
                      interest rate method. In addition, if an obligation is
                      purchased subsequent to its original issue, a holder such
                      as the Income Funds may elect to include market discount
                      in income currently on a ratable accrual method or a
                      constant interest rate method. Market discount is the
                      difference between the obligation's "adjusted issue price"
                      (the original issue price plus original issue discount
                      accrued to date) and the holder's purchase price. If no
                      such election is made, gain on the disposition of a market
                      discount obligation is treated as
 
                                       29
<PAGE>   218
 
                      ordinary income (rather than capital gain) to the extent
                      it does not exceed the accrued market discount.
 
                        Zero-coupon obligations have greater price volatility
                      than other fixed-income obligations of similar maturity
                      and such obligations will be purchased when the yield
                      spread, in light of the obligation's duration, is
                      considered advantageous.
 
                                       30
<PAGE>   219
 
                        HighMark CONVERTIBLE SECURITIES
                                      FUND
                            INVESTMENT PORTFOLIO OF
                                 HighMark FUNDS
                   For further information (including current
                  yield, purchase and redemption information),
                              call (800) 433-6884
 
INVESTMENT ADVISOR
Pacific Alliance Capital Management,
a division of Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
SUB-ADVISOR
Bank of Tokyo-Mitsubishi Trust Company
1251 Avenue of the Americas
New York, New York 10116
 
CUSTODIAN
Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
ADMINISTRATOR & DISTRIBUTOR
SEI Fund Resources and
SEI Financial Services Company
Oaks, Pennsylvania 19456
 
LEGAL COUNSEL
Ropes & Gray
One Franklin Square
1301 K Street, N.W., Suite 800 East
Washington, D.C. 20005
 
AUDITORS
Deloitte & Touche LLP
1700 Courthouse Plaza Northeast
Dayton, OH 45402
 
  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS IN CONNECTION WITH THE OFFERING
MADE BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR
REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY HIGHMARK OR
ITS DISTRIBUTOR. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFERING BY HIGHMARK OR
BY THE DISTRIBUTOR IN ANY JURISDICTION IN WHICH SUCH OFFERING MAY NOT LAWFULLY
BE MADE.
 
NOT FDIC INSURED
<PAGE>   220
                             - Equity Funds

                             - Income Equity Fund

                             - Value Monentum Fund

                             - Blue Chip Growth
                               Fund

                             - Growth Fund
   
                             - Emerging Growth 
                               Fund

                                   Prospectus

                                Fiduciary Shares

                                 March 28, 1997

84823-A(3/97)                 [LOGO] HIGHMARK(SM)
                                     FUNDS

<PAGE>   221
 
                                 HIGHMARK FUNDS
 
                                  EQUITY FUNDS
 
  HighMark Funds ("HighMark") is an open-end, diversified, registered investment
company that offers a convenient means of investing in one or more
professionally managed portfolios of securities. This Prospectus relates to
HighMark's:
                                 - Income Equity Fund
                                 - Value Momentum Fund
                                 - Blue Chip Growth Fund
                                 - Growth Fund
                                 - Emerging Growth Fund
 
                                FIDUCIARY SHARES
 
  HighMark's Fiduciary Shares are offered to the following investors: (i)
fiduciary, advisory, agency, custodial and other similar accounts maintained
with Union Bank of California, N.A. or its affiliates; (ii) Select IRA accounts
established with The Bank of California, N.A. and invested in any of HighMark's
Equity or Income Funds prior to June 20, 1994, which have remained continuously
open thereafter and which are not considered to be fiduciary accounts; (iii)
Shareholders who currently own Shares of HighMark's Equity or Income Funds that
were purchased prior to June 20, 1994 within an account registered in their name
with the Funds; and (iv) present and retired directors, officers and employees
(and their spouses and children under the age of 21) of Union Bank of
California, N.A., HighMark's current or former distributors or their respective
affiliated companies who currently own Shares of HighMark Funds which were
purchased before April 30, 1997.
 
  This Prospectus sets forth concisely the information about HighMark and the
Funds that a prospective investor should know before investing. Investors are
advised to read this Prospectus and retain it for future reference. A Statement
of Additional Information dated the same date as this Prospectus has been filed
with the Securities and Exchange Commission and is available without charge by
writing the Distributor, SEI Financial Services Company, Oaks, Pennsylvania
19456, or by calling 1-800-433-6884. The Statement of Additional Information is
incorporated into this Prospectus by reference. This Prospectus relates only to
the Fiduciary Shares of the Equity Funds. Interested persons who wish to obtain
a prospectus for the other Funds of HighMark may contact the Distributor at the
above address and telephone number.
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SECURITIES
  AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COM MISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
HIGHMARK'S SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK, INCLUDING UNION BANK OF CALIFORNIA, N.A., BANK OF
TOKYO-MITSUBISHI, LIMITED OR ANY OF THEIR AFFILIATES OR CORRESPONDENTS. HIGHMARK
ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION OR ANY
OTHER GOVERNMENT AGENCY. INVESTMENT IN HIGHMARK INVOLVES RISKS, INCLUDING
POSSIBLE LOSS OF THE PRINCIPAL AMOUNT INVESTED.
 
March 28, 1997
Fiduciary Shares
<PAGE>   222
 
                                    SUMMARY
 
HIGHMARK FUNDS ("HighMark") is an open-end, diversified, registered investment
company providing a convenient way to invest in professionally managed
portfolios of securities. The following provides basic information about the
Fiduciary Shares of the Income Equity, Value Momentum, Blue Chip Growth, Growth,
and Emerging Growth Funds (each a "Fund" and sometimes referred to in this
prospectus as the "Equity Funds.") This summary is qualified in its entirety by
reference to the more detailed information provided elsewhere in the Prospectus
and in the Statement of Additional Information.
 
WHAT ARE THE FUNDS' INVESTMENT OBJECTIVES? THE INCOME EQUITY FUND seeks
investments in equity securities that provide current income through the regular
payment of dividends, with the goal that the Fund will have a high current yield
and a low level of price volatility; opportunity for long-term growth of asset
value is a secondary consideration. THE VALUE MOMENTUM FUND seeks long-term
capital growth with a secondary objective of income. THE BLUE CHIP GROWTH FUND
seeks long-term capital growth by investing in a diversified portfolio of common
stocks and other equity securities of seasoned, large capitalization companies.
THE GROWTH FUND seeks long-term capital appreciation through investments in
equity securities; the production of current income is an incidental objective.
THE EMERGING GROWTH FUND seeks long-term growth of capital by investing in a
diversified portfolio of equity securities of small capitalization, emerging
growth companies. (See "INVESTMENT OBJECTIVES.")
 
WHAT ARE THE FUNDS' PERMITTED INVESTMENTS? Each of the Funds primarily invests,
consistent with its investment objective, in equity securities including common
stocks and securities convertible into common stocks. Each Fund may also invest
consistent with its investment objective and investment policies in certain
other instruments. (See "INVESTMENT POLICIES.")
 
WHAT ARE THE RISKS INVOLVED WITH AN INVESTMENT IN THE FUNDS? The investment
policies of each Fund entail certain risks and considerations of which an
investor should be aware. Each of the Funds may purchase common stocks and other
equity securities that are volatile and which may fluctuate in value more than
other types of investments. Values of fixed income securities and,
correspondingly, share prices of Funds invested in such securities, tend to vary
inversely with interest rates, and may be affected by other market and economic
factors as well. In addition, the securities of the emerging growth companies in
which the Emerging Growth Fund may invest may be less liquid, and subject to
more abrupt or erratic market movements, than securities of larger, more
established growth companies. (See "Risk Factors.")
 
ARE MY INVESTMENTS INSURED? HighMark's Shares are not federally insured by the
FDIC or any other government agency. Any guarantee by the U.S. Government, its
agencies or any instrumentalities of the securities in which any Fund invests
guarantees only the payment of principal and interest on the guaranteed
security, and does not guarantee the total return or value of the security or
total return or value of Shares of that Fund.
 
WHO IS THE ADVISOR? Pacific Alliance Capital Management, a division of Union
Bank of California, N.A., serves as the Advisor to HighMark. (See "The
Advisor.")
 
WHO IS THE SUB-ADVISOR? Bank of Tokyo-Mitsubishi Trust Company serves as the
Sub-Advisor to the Emerging Growth and Blue Chip Growth Funds. (See "The
Sub-Advisor.")
 
                                        2
<PAGE>   223
 
WHO IS THE ADMINISTRATOR? SEI Fund Resources serves as the Administrator of
HighMark. (See "The Administrator.")
 
WHO IS THE CUSTODIAN? Union Bank of California, N.A. (the "Bank") serves as the
custodian of HighMark's assets. (See "The Custodian.")
 
WHO IS THE DISTRIBUTOR? SEI Financial Services Company acts as distributor of
HighMark's Shares. (See "The Distributor.")
 
HOW DO I PURCHASE AND REDEEM SHARES? Purchases and redemptions may be made
through the Distributor on days on which both the New York Stock Exchange and
the Federal Reserve wire system are open for business ("Business Days"). The
minimum initial investment is generally $1,000. A purchase order will be
effective if the Distributor receives an order prior to 1:00 p.m., Pacific time
(4:00 p.m., Eastern time). Purchase orders for Shares will be executed at a per
Share price equal to the asset value next determined after the purchase order is
effective. Redemption orders must be placed prior to 1:00 p.m., Pacific time
(4:00 p.m., Eastern time) on any Business Day for the order to be effective that
day. (See "PURCHASE AND REDEMPTION OF SHARES.")
 
HOW ARE DIVIDENDS PAID? Substantially all of the net investment income
(exclusive of capital gains) of the Funds is distributed in the form of monthly
dividends to Shareholders of record. Any capital gain is distributed at least
annually. Distributions are paid in additional Shares unless the Shareholder
elects to take the payment in cash. ( See "DIVIDENDS.")
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
Summary...............................................................................    2
Equity Funds Fee Table................................................................    5
Financial Highlights..................................................................    7
Fund Description......................................................................   12
Investment Objectives.................................................................   12
Investment Policies...................................................................   13
  Income Equity Fund..................................................................   13
  Value Momentum Fund.................................................................   13
  Blue Chip Growth Fund...............................................................   14
  Growth Fund.........................................................................   14
  Emerging Growth Fund................................................................   14
General...............................................................................   15
  Money Market Instruments............................................................   15
  Illiquid and Restricted Securities..................................................   15
  Lending of Portfolio Securities.....................................................   15
  Other Investments...................................................................   15
  Risk Factors........................................................................   17
Investment Limitations................................................................   18
  Portfolio Turnover..................................................................   19
Purchase and Redemption of Shares.....................................................   19
</TABLE>
 
                                        3
<PAGE>   224
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
Exchange Privileges...................................................................   20
Dividends.............................................................................   21
Federal Taxation......................................................................   22
Service Arrangements..................................................................   23
  The Advisor.........................................................................   23
  Sub-Advisor.........................................................................   24
  Administrator.......................................................................   25
  The Transfer Agent..................................................................   26
  Shareholder Service Plan............................................................   26
  Distributor.........................................................................   26
  Banking Laws........................................................................   27
  Custodian...........................................................................   27
General Information...................................................................   27
  Description of HighMark & Its Shares................................................   27
  Performance Information.............................................................   28
  Miscellaneous.......................................................................   29
Description of Permitted Investments..................................................   30
</TABLE>
 
                                        4
<PAGE>   225
 
                             EQUITY FUNDS FEE TABLE
 
<TABLE>
<CAPTION>
                                                                INCOME      VALUE     BLUE CHIP                EMERGING
                                                                EQUITY     MOMENTUM    GROWTH      GROWTH       GROWTH
                                                                 FUND        FUND       FUND        FUND         FUND
                                                               FIDUCIARY   FIDUCIARY  FIDUCIARY   FIDUCIARY   FIDUCIARY
                                                                SHARES      SHARES     SHARES      SHARES       SHARES
                                                               ---------   --------   ---------   ---------   ----------
<S>                                                            <C>         <C>        <C>         <C>         <C>
SHAREHOLDER TRANSACTION EXPENSES(a)
  Maximum Sales Load Imposed on Purchases (as a percentage of
    offering price)..........................................        0%         0%          0%          0%          0%
  Maximum Sales Load Imposed on Reinvested Dividends (as a
    percentage of offering price)............................        0%         0%          0%          0%          0%
  Deferred Sales Load (as a percentage of original purchase
    price or redemption proceeds, as applicable).............        0%         0%          0%          0%          0%
  Redemption Fees (as a percentage of amount redeemed, if
    applicable)(b)...........................................        0%         0%          0%          0%          0%
  Exchange Fee(a)............................................    $   0       $  0       $   0       $   0        $  0
ANNUAL OPERATING EXPENSES (as a percentage of net assets)
  Management Fees............................................     0.60%      0.60%       0.60%       0.60%       0.80%
  12b-1 Fees.................................................        0%         0%          0%          0%          0%
  Other Expenses (after voluntary reduction)(c)..............     0.31%      0.21%       0.22%       0.30%       0.23%
  Total Fund Operating Expenses(d)...........................     0.91%      0.81%       0.82%       0.90%       1.03%
                                                                  ====       ====        ====        ====        ====
</TABLE>
 
  EXAMPLE: You would pay the following expenses on a $1,000 investment, assuming
(1) 5% annual return and (2) redemption at the end of each time period.
 
<TABLE>
<CAPTION>
                                                                         3        5        10
                                                              1 YEAR   YEARS    YEARS     YEARS
                                                              ------   ------   ------   -------
<S>                                                           <C>      <C>      <C>      <C>
Income Equity Fund Fiduciary Shares.........................   $  9     $ 29     $ 50     $ 112
Value Momentum Fund Fiduciary Shares........................   $  8     $ 26     $ 45     $ 100
Blue Chip Growth Fund Fiduciary Shares......................   $  8     $ 26     $ 46     $ 101
Growth Fund Fiduciary Shares................................   $  9     $ 29     $ 50     $ 111
Emerging Growth Fund Fiduciary Shares.......................   $ 11     $ 33     $ 57     $ 126
</TABLE>
 
  The purpose of the tables above is to assist an investor in the Equity Funds
in understanding the various costs and expenses that a Shareholder will bear
directly or indirectly. For a more complete discussion of each Fund's annual
operating expenses, see SERVICE ARRANGEMENTS below. THE FOREGOING EXAMPLE SHOULD
NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE EXPENSES. ACTUAL EXPENSES
MAY BE GREATER OR LESS THAN THOSE SHOWN.
- ---------------
 
(a) Certain entities (including Union Bank of California and its affiliates)
    making investments in the Equity Funds on behalf of their customers may
    charge customers fees for services provided in connection with the
    investment in, redemption of, and exchange of Shares. (See PURCHASE AND
    REDEMPTION OF SHARES, EXCHANGE PRIVILEGES, and SERVICE ARRANGEMENTS--below.)
 
(b) A wire redemption charge is deducted from the amount of a wire redemption
    payment made at the request of a Shareholder. (See REDEMPTION OF SHARES
    below.)
 
                                        5
<PAGE>   226
 
(c) OTHER EXPENSES for the Value Momentum, Emerging Growth and Blue Chip Growth
    Funds are based on each Fund's estimated expenses for the current fiscal
    year. Absent voluntary fee waivers, OTHER EXPENSES would be 0.48% for the
    Fiduciary Shares of the Income Equity, Value Momentum and Growth Funds,
    0.49% for the Fiduciary Shares of the Blue Chip Growth Fund and 0.50% for
    the Fiduciary Shares of the Emerging Growth Fund.
 
(d) Absent voluntary fee waivers, TOTAL FUND OPERATING EXPENSES would be: 1.08%
    for the Fiduciary Shares of the Income Equity, Value Momentum and Growth
    Funds, 1.09% for the Fiduciary Shares of the Blue Chip Growth Fund, and
    1.30% for the Fiduciary Shares of the Emerging Growth Fund.
 
                                        6
<PAGE>   227
 
                              FINANCIAL HIGHLIGHTS
 
  The tables below set forth certain financial information with respect to the
Fiduciary Shares of the Income Equity Fund and the Growth Fund. Financial
highlights for the Income Equity Fund and the Growth Fund for the period ended
July 31, 1996 have been derived from financial statements audited by Deloitte &
Touche LLP, independent auditors for HighMark, whose report thereon is included
in the Statement of Additional Information. Prior to the fiscal year ended July
31, 1996, Coopers & Lybrand L.L.P. served as independent accountants for
HighMark. Financial highlights for the Income Equity Fund for the periods
indicated have been derived from financial statements audited by Coopers &
Lybrand L.L.P. Financial highlights for the Income Equity Fund for the years
ended December 31, 1987, 1986, 1985, and for the period ended December 31, 1984
have been derived from financial statements examined by other auditors whose
report thereon is on file with the Securities and Exchange Commission. Financial
highlights for the Income Equity Fund for the period from January 1, 1988
through June 22, 1988 are derived from unaudited financial statements prepared
by HighMark.
 
  The Value Momentum Fund, the Blue Chip Growth Fund and the Emerging Growth
Fund had not commenced operations in HighMark as of July 31, 1996.
 
  Prior to June 20, 1994, the Income Equity Fund and the Growth Fund offered a
single class of Shares (now designated Fiduciary Shares) throughout the periods
shown.
 
                                        7
<PAGE>   228
 
                               INCOME EQUITY FUND
 
<TABLE>
<CAPTION>
                                                            YEAR ENDED JULY 31,
                                     ------------------------------------------------------------------
                                       1996        1995       1994(a)
                                     ---------   ---------   ---------
                                     FIDUCIARY   FIDUCIARY   FIDUCIARY     1993       1992       1991
                                     ---------   ---------   ---------   --------   --------   --------
<S>                                  <C>         <C>         <C>         <C>        <C>        <C>
Net Asset Value, Beginning of
  Period...........................  $   13.00   $   11.92   $   12.13   $  11.42   $  10.22   $  10.46
                                      --------    --------    --------   --------   --------   --------
Investment Activities
  Net investment income............       0.42        0.44        0.39       0.38       0.40       0.46
  Net realized and unrealized gains
     (losses) on investments.......       1.93        1.50        0.12       0.71       1.20       0.61
                                      --------    --------    --------   --------   --------   --------
Total from Investment Activities...       2.35        1.94        0.51       1.09       1.60       1.07
                                      --------    --------    --------   --------   --------   --------
Distributions
  Net investment income............      (0.42)      (0.44)      (0.39)     (0.38)     (0.40)     (0.46)
  Net realized gains...............      (0.66)      (0.42)      (0.33)                           (0.85)
                                      --------    --------    --------   --------   --------   --------
Total Distributions................      (1.08)      (0.86)      (0.72)     (0.38)     (0.40)     (1.31)
                                      --------    --------    --------   --------   --------   --------
Net Asset Value, End of Period.....  $   14.27   $   13.00   $   11.92   $  12.13   $  11.42   $  10.22
                                      ========    ========    ========   ========   ========   ========
Total Return.......................      18.25%      17.26%       4.23%      9.75%     16.04%     12.60%
Ratios/Supplementary Data:
  Net Assets at end of period
     (000).........................  $ 262,660   $ 221,325   $ 213,328   $104,840   $ 74,478   $ 49,047
  Ratio of expenses to average net
     assets........................       1.03%       1.06%       1.06%      1.15%      1.16%      1.17%
  Ratio of net investment income to
     average net assets............       2.95%       3.59%       3.29%      3.27%      3.76%      4.81%
  Ratio of expenses to average net
     assets*.......................       1.27%       1.30%       1.10%      1.21%      1.29%      1.40%
  Ratio of net investment income to
     average net assets*...........       2.71%       3.34%       3.24%      3.22%      3.64%      4.58%
Portfolio turnover.................      41.51%      36.64%      33.82%     29.58%     23.05%     33.10%
</TABLE>
 
                                        8
<PAGE>   229
 
<TABLE>
<CAPTION>
                                                                                        JUNE 23,
                                                                                        1988 TO
                                                                YEAR ENDED JULY 31,     JULY 31,
                                                                -------------------     --------
                                                                 1990        1989       1988(c)
                                                                -------     -------     --------
<S>                                                             <C>         <C>         <C>
Net Asset Value, Beginning of Period..........................  $ 12.12     $ 10.00     $  10.00
                                                                -------     -------      -------
Investment Activities
  Net investment income.......................................     0.54        0.49         0.03
  Net realized and unrealized gains (losses) on investments...    (0.62)       2.22
                                                                -------     -------      -------
Total from investment Activities..............................    (0.08)       2.71         0.03
                                                                -------     -------      -------
Distributions
  Net Investment income.......................................    (0.54)      (0.49)       (0.03)
  Net realized gains..........................................    (1.04)      (0.10)
                                                                -------     -------      -------
Total Distributions...........................................    (1.58)      (0.59)       (0.03)
                                                                -------     -------      -------
Net Asset Value, End of Period................................  $ 10.46     $ 12.12     $  10.00
                                                                =======     =======      =======
Total Return..................................................    (0.84)%     28.16%        1.31%(d)
Ratios/Supplementary Data:
  Net Assets at end of period (000)...........................  $41,280     $40,027     $ 30,495
  Ratio of expenses to average net assets.....................     1.15%       1.19%        0.99%(b)
  Ratio of net investment income to average net assets........     4.82%       4.61%        2.56%(b)
  Ratio of expenses to average net assets*....................     1.41%       1.41%        1.41%(b)
  Ratio of net investment income to average net assets*.......     4.56%       4.39%        2.14%(b)
Portfolio turnover............................................    37.11%      28.83%        3.12%(b)
</TABLE>
 
- ---------------
(a) On June 20, 1994, the Income Equity Fund commenced offering Investor Shares
    (now called "Retail Shares") and designated existing Shares as Fiduciary
    Shares.

(b) Annualized.

(c) The Income Equity Fund commenced operations on June 23, 1988 as a result of
    the reorganization involving the Income Equity Portfolio of the IRA
    collective Investment Fund described under GENERAL
    INFORMATION--Reorganization of The IRA Fund & HighMark.

(d) Not annualized.
 
 *  During the period the investment advisory and administration fees were
    voluntarily reduced. If such voluntary fee reductions had not occurred, the
    ratios would have been as indicated.
 
                                        9
<PAGE>   230
 
                      PER SHARE INCOME AND CAPITAL CHANGES
                (FOR A SHARE OUTSTANDING THROUGHOUT THE PERIODS)
 
           THE IRA COLLECTIVE INVESTMENT FUND INCOME EQUITY PORTFOLIO
 
<TABLE>
<CAPTION>
                                                         PERIOD FROM
                                                           JAN. 1,
                                                            1988
                                                           THROUGH          YEAR ENDED DEC. 31,
                                                          JUNE 22,       -------------------------
                                                         1988(a)(b)       1987(a)        1986(a)
                                                         (UNAUDITED)     (AUDITED)      (AUDITED)
                                                         -----------     ----------     ----------
<S>                                                      <C>             <C>            <C>
Investment income......................................  $     0.440     $    0.927     $    0.944
Operating expenses.....................................        0.102          0.185(d)       0.154(d)
Net investment income..................................        0.338          0.742          0.790
Dividends from net investment income...................       (0.338)        (0.742)        (0.790)
Net realized and unrealized gain (loss) on
  investments..........................................        1.884         (0.564)         1.934
                                                          ----------     ----------     ----------
Increase (decrease) in net asset value.................        1.884         (0.564)         1.934
Net Asset Value:
  Beginning of period..................................       14.059         14.623         12.689
                                                          ----------     ----------     ----------
  End of period........................................  $    15.943     $   14.059     $   14.623
                                                          ==========     ==========     ==========
Ratio of expenses to average net assets(c)(d)..........         1.41%          1.12%          0.97%
Ratio of net investment income to average net
  assets(c)............................................         5.45%          4.50%          4.96%
Portfolio turnover.....................................         5.83%         20.88%         12.07%
Number of Shares/units outstanding at end of period....    1,940,573      1,978,920      1,416,327
</TABLE>
 
- ---------------
 
(a) The per share amount is calculated using weighted-average Shares
    outstanding.
(b) The Income Equity Fund commenced operations on June 23, 1988 as a result of
    the reorganization involving the Income Equity Portfolio of the IRA
    Collective Investment Fund.
(c) Annualized based on the period of which assets were held.
(d) The expenses shown are not representative of expenses actually incurred by
    the Income Equity Portfolio through May 31, 1987. During mid-May 1985, The
    Bank of California, N.A., investment adviser to the Income Equity Portfolio,
    commenced charging its management fee, and commencing June 1, 1987,
    operating expenses were charged to the Income Equity Portfolio. Had the
    maximum allowable operating expenses and management fees been paid by the
    Income Equity Portfolio for the entire period pursuant to the Management
    Agreement between the Income Equity Portfolio and The Bank of California,
    N.A., the per unit expenses and net investment income would have been as
    follows:
 
<TABLE>
<CAPTION>
                                                           PERIOD FROM
                                                             JAN. 1,
                                                              1988
                                                             THROUGH          YEAR ENDED DEC. 31,
                                                            JUNE 22,       -------------------------
                                                              1988            1987           1986
                                                           (UNAUDITED)     (AUDITED)      (AUDITED)
                                                           -----------     ----------     ----------
<S>                                                        <C>             <C>            <C>
Expenses.................................................    $ 0.257        $  0.260       $  0.248
Net investment income....................................      0.183           0.612          0.557
Net asset value, end of year.............................     15.943          14.059         14.623
Expenses as a percentage of average net assets...........      2.00%(c)         1.67%          2.00%
</TABLE>
 
                                       10
<PAGE>   231
 
                                  GROWTH FUND
 
<TABLE>
<CAPTION>
                                                                YEAR ENDED JULY 31,
                                                               ---------------------
                                                                                       NOV. 18, 1993 TO
                                                                 1996        1995      JULY 31, 1994(a)
                                                               ---------   ---------   ----------------
                                                               FIDUCIARY   FIDUCIARY      FIDUCIARY
                                                               ---------   ---------   ----------------
<S>                                                            <C>         <C>         <C>
Net Asset Value, Beginning of Period.........................   $  11.87    $   9.76       $  10.00
                                                                  ------      ------         ------
Investment Activities
Net investment income........................................       0.12        0.15           0.05
Net realized and unrealized gains (losses) on investments....       1.35        2.26          (0.24)
                                                                  ------      ------         ------
          Total from Investment Activities...................       1.47        2.41          (0.19)
                                                                  ------      ------         ------
Distributions
Net investment income........................................      (0.12)      (0.15)         (0.05)
Net realized gains...........................................      (0.64)      (0.15)            --
                                                                  ------      ------         ------
          Total Distributions................................      (0.76)      (0.30)         (0.05)
                                                                  ------      ------         ------
Net Asset Value, End of Period...............................   $  12.58    $  11.87       $   9.76
                                                                  ======      ======         ======
Total Return.................................................      12.72%      25.23%         (1.87)%(c)
Ratios/Supplementary Data:
  Net Assets at end of period (000)..........................   $ 41,495    $ 25,096       $ 15,254
  Ratio of expenses to average net assets....................       0.93%       0.79%          0.77%(b)
  Ratio of net investment income to average net assets.......       0.98%       1.40%          0.86%(b)
  Ratio of expenses to average net assets*...................       1.67%       1.92%          2.61%(b)
  Ratio of net investment income loss to average net
     assets*.................................................       0.23%       0.26%         (0.98)%(b)
Portfolio turnover...........................................      78.58%      67.91%        123.26%
</TABLE>
 
- ---------------
(a) Period from commencement of operations. On June 20, 1994, the Growth Fund
    commenced offering Investor Shares (now called "Retail Shares") and
    designated existing shares as Fiduciary Shares.

(b) Annualized.

(c) Not annualized.
 
 *  During the period, certain fees were voluntarily reduced. In addition,
    certain expenses were reimbursed. If such voluntary fee reductions and
    expense reimbursements had not occurred, the ratios would have been as
    indicated.
 
                                       11
<PAGE>   232
 
FUND
DESCRIPTION             HighMark Funds ("HighMark") is an open-end, diversified,
                      registered investment company that currently offers units
                      of beneficial interest ("Shares") in sixteen separate
                      investment portfolios ("Funds"). All of the Funds are
                      advised by Pacific Alliance Capital Management (the
                      "Advisor"), a division of Union Bank of California, N.A.
                      Shareholders may purchase Shares of selected Funds through
                      two separate classes (the "Retail" and "Fiduciary"
                      classes). These classes may have different sales charges
                      and other expenses, which may affect performance.
                      Information regarding HighMark's other Funds and other
                      classes is contained in separate prospectuses that may be
                      obtained from HighMark's Distributor, SEI Financial
                      Services Company, at Oaks, Pennsylvania 19456, or by
                      calling 1-800-433-6884.
 
                        For information concerning those investors who qualify
                      to purchase Fiduciary Shares, see PURCHASE AND REDEMPTION
                      OF SHARES below. (Fiduciary Shares may be hereinafter
                      referred to as "Shares.")
 
INVESTMENT
OBJECTIVES              The investment objectives of the Funds are as follows:
 
                        The Income Equity Fund seeks investments in equity
                      securities that provide current income through the regular
                      payment of dividends, with the goal that the Income Equity
                      Fund will have a high current yield and a low level of
                      price volatility. Opportunity for long-term growth of
                      asset value is a secondary consideration.
 
                        The Value Momentum Fund seeks long-term capital growth
                      with a secondary objective of income.
 
                        The Blue Chip Growth Fund seeks long-term capital growth
                      by investing in a diversified portfolio of common stocks
                      and other equity securities of seasoned, large
                      capitalization companies.
 
                        The Growth Fund seeks long-term capital appreciation
                      through investments in equity securities. The production
                      of current income is an incidental objective.
 
                        The Emerging Growth Fund seeks long-term growth of
                      capital by investing in a diversified portfolio of equity
                      securities of small capitalization, emerging growth
                      companies.
 
                        The investment objectives and certain of the investment
                      limitations of the Funds may not be changed without a vote
                      of the holders of a majority of the outstanding Shares of
                      the respective Fund (as defined under GENERAL
                      INFORMATION -- Miscellaneous below). There can be no
                      assurance that a Fund will achieve its investment
                      objective.
 
                                       12
<PAGE>   233
 
INVESTMENT
POLICIES              Income Equity Fund
 
                        Under normal market conditions, the Income Equity Fund
                      will invest at least 65% of its total assets in equity
                      securities, including common stocks, warrants to purchase
                      common stocks, American Depositary Receipts ("ADRs"),
                      preferred stocks and securities (including debt
                      securities) convertible into or exercisable for common
                      stocks. The Income Equity Fund's investments primarily
                      consist of the common stocks of U.S. corporations that
                      regularly pay dividends, although there can be no
                      assurance that a corporation will continue to pay
                      dividends. Investments will be made in an attempt to keep
                      the Income Equity Fund's yield above the S&P 500's yield
                      by approximately one-third to one-half the difference
                      between the S&P 500's yield and the yield on long-term
                      U.S. Government bonds.
 
                        The Income Equity Fund generally invests in stocks with
                      favorable, long-term fundamental characteristics when
                      their current relative yields are at the upper end of
                      their historical yield ranges. Frequently, these stocks
                      are out of favor in the financial community and investors
                      see little opportunity for price appreciation. The Fund
                      may also invest in major U.S. corporations in a mature
                      stage of development or operating in slower areas of the
                      economy. While it is anticipated that a significant part
                      of the total growth in asset value experienced by the
                      Income Equity Fund will result from companies' improving
                      prospects (although there can be no assurance that this
                      will in fact occur), dividends will provide a substantial
                      portion of the Fund's total return. When yields on stocks
                      held by the Income Equity Fund drop to the lower end of
                      their historical ranges, the Fund may begin to reduce its
                      holdings. Similarly, if there is a significant fundamental
                      change that impairs a company's ability to pay dividends,
                      or if the yield on a stock dips below the yield of the
                      general market, the Income Equity Fund may eliminate its
                      holdings in these stocks.
 
                      Value Momentum Fund
 
                        Under normal market conditions, the Value Momentum Fund
                      will invest at least 65% of its total assets in equity
                      securities, including common stocks, warrants to purchase
                      common stocks, ADRs, preferred stocks and securities
                      (including debt securities) convertible into or
                      exercisable for common stocks. The Value Momentum Fund
                      will be invested primarily in securities which the Advisor
                      believes to be undervalued relative to the market and to
                      the security's historic valuation. Stocks are then
                      screened for positive price or earnings momentum.
                      Securities purchased will generally have a medium to high
                      market capitalization. A majority of the securities in
                      which the Value Momentum Fund invests will be dividend
                      paying.
 
                                       13
<PAGE>   234
 
                      Blue Chip Growth Fund
 
                        Under normal market conditions, the Blue Chip Growth
                      Fund will invest at least 65% of its total assets in
                      equity securities, including common stocks, warrants to
                      purchase common stocks, ADRs, preferred stocks and
                      securities (including debt securities) convertible into or
                      exercisable for common stocks. The Fund primarily invests
                      in equity securities of seasoned, large capitalization
                      companies. A seasoned company is generally a company with
                      an operating history of 3 years or more. A large
                      capitalization company is generally a company with
                      capitalization in excess of $1.0 billion. A majority of
                      the Fund's equity investments ordinarily will consist of
                      dividend-paying securities.
 
                      Growth Fund
 
                        Under normal market conditions, the Growth Fund will
                      invest at least 65% of its total assets in equity
                      securities, including common stocks, warrants to purchase
                      common stocks, ADRs, preferred stocks and securities
                      (including debt securities) convertible into or
                      exercisable for common stocks, of growth-oriented
                      companies. The Growth Fund emphasizes a well-diversified
                      portfolio of medium to large capitalization growth
                      companies (capitalization in excess of $500 million) with
                      a record of above average growth in earnings. The Fund
                      focuses on companies that the Advisor believes to have
                      enduring quality and above average earnings growth. Among
                      the criteria the Fund uses to screen for stock selection
                      are earnings growth, return on capital, brand identity,
                      recurring revenues, price and quality of management team.
 
                      Emerging Growth Fund
 
                        Under normal market conditions, the Emerging Growth Fund
                      will invest at least 65% of its total assets in equity
                      securities, including common stocks, warrants to purchase
                      common stocks, ADRs, preferred stocks and securities
                      (including debt securities) convertible into or
                      exercisable for common stocks of small and medium
                      capitalization companies. Small and medium capitalization
                      companies are those with capitalization between $50
                      million and $1 billion and the potential for growth or
                      those which, in the Advisor's opinion, have potential for
                      above-average long-term capital appreciation. An emerging
                      growth company is one which, in the Advisor's judgment, is
                      in the developing stages of its life cycle and has
                      demonstrated or is expected to achieve rapid growth in
                      earnings and/or revenues. Emerging growth companies are
                      characterized by opportunities for rapid growth rates
                      and/or dynamic business changes. Emerging growth
                      companies, regardless of size, tend to offer the potential
                      for accelerated earnings or revenue growth because of new
                      products or technologies, new channels of distribution,
                      revitalized management or industry conditions, or similar
                      opportunities. A company may or may not yet be profitable
                      at the time the Emerging
 
                                       14
<PAGE>   235
 
                      Growth Fund invests in its securities. Current income will
                      not be a criterion of investment selection, and any such
                      income should be considered incidental. Many of the
                      securities in which the Fund invests will not pay
                      dividends.
 
                        The Emerging Growth Fund may also invest in equity
                      securities of companies in "special equity situations,"
                      meaning companies experiencing unusual and possibly
                      non-repetitive developments, such as mergers;
                      acquisitions; spin-offs; liquidations; reorganizations;
                      and new products, technology or management. Since a
                      special equity situation may involve a significant change
                      from a company's past experiences, the uncertainties in
                      the appraisal of the future value of the company's equity
                      securities and the risk of a possible decline in the value
                      of the Emerging Growth Fund's investments are significant.
 
GENERAL               Money Market Instruments
 
                        Under normal market conditions, each Equity Fund may
                      invest up to 35% of its total assets in money market
                      instruments. When market conditions indicate a temporary
                      "defensive" investment strategy as determined by the
                      Advisor, a Fund may invest more than 35% of its total
                      assets in money market instruments. A Fund will not be
                      pursuing its investment objective to the extent that a
                      substantial portion of its assets are invested in money
                      market instruments.
 
                      Illiquid and Restricted Securities
 
                        Each Fund shall limit investment in illiquid securities
                      to 15% or less of its net assets. Generally, an "illiquid
                      security" is any security that cannot be disposed of
                      promptly and in the ordinary course of business at
                      approximately the amount at which the Fund has valued the
                      instrument. The absence of a trading market can make it
                      difficult to ascertain the market value of the illiquid
                      securities. Each Fund may purchase restricted securities
                      which have not been registered under the Securities Act of
                      1933 (e.g., Rule 144A Securities and Section 4(2)
                      commercial paper) subject to policies approved by the
                      Board of Trustees. See INVESTMENT RESTRICTIONS in the
                      Statement of Additional Information.
 
                      Lending of Portfolio Securities
 
                        In order to generate additional income, a Fund may lend
                      its portfolio securities to broker-dealers, banks or other
                      institutions. A Fund may lend portfolio securities in an
                      amount representing up to 33 1/3% of the value of the
                      Fund's total assets.
 
                      Other Investments
 
                        The Funds may enter into repurchase agreements and
                      reverse repurchase agreements.
 
                                       15
<PAGE>   236
 
                        The Equity Funds may enter into forward commitments or
                      purchase securities on a "when-issued" basis. Each Equity
                      Fund expects that commitments by a Fund to enter into
                      forward commitments or purchase when-issued securities
                      will not exceed 25% of the value of the Fund's total
                      assets under normal market conditions. The Equity Funds do
                      not intend to purchase when-issued securities or forward
                      commitments for speculative or leveraging purposes but
                      only for the purpose of acquiring portfolio securities.
 
                        The Funds may also invest in money market instruments,
                      money market funds, and in cash, and may invest in other
                      registered investment companies with similar investment
                      objectives.
 
                        A Fund may invest up to 5% of its total assets in the
                      shares of any one registered investment company, but may
                      not own more than 3% of the securities of any one
                      registered investment company or invest more than 10% of
                      its assets in the securities of other registered
                      investment companies. In accordance with an exemptive
                      order issued to HighMark by the SEC, such other registered
                      investment company securities may include shares of a
                      money market fund of HighMark, and may include registered
                      investment companies for which the Advisor or Sub-Advisor
                      to a Fund of HighMark, or an affiliate of such Advisor or
                      Sub-Advisor, serves as investment advisor, administrator
                      or distributor. Because other registered investment
                      companies employ an investment advisor, such investment by
                      a Fund may cause Shareholders to bear duplicative fees.
                      The Advisor will waive its fees attributable to the assets
                      of the investing Fund invested in a money market fund of
                      HighMark, and, to the extent required by applicable law,
                      the Advisor will waive its fees attributable to the assets
                      of the Fund invested in any investment company. Some Funds
                      are subject to additional restrictions on investments in
                      other investment companies. See "INVESTMENT RESTRICTIONS"
                      in the Statement of Additional Information.
 
                        Each Fund may write covered calls on its equity
                      securities and enter into closing transactions with
                      respect to covered call options.
 
                        A Fund's assets may be invested in options, futures
                      contracts and options on futures, Standard & Poor's
                      Depositary Receipts ("SPDRs"), and investment grade bonds.
                      The aggregate value of options on securities (long puts
                      and calls) will not exceed 10% of a Fund's net assets at
                      the time such options are purchased by the Fund.
 
                        A Fund may enter into futures and options on futures
                      only to the extent that obligations under such contracts
                      or transactions, together with options on securities,
                      represent not more than 25% of the Fund's assets.
 
                                       16
<PAGE>   237
 
                        Each Fund may purchase options in stock indices to
                      invest cash on an interim basis. The aggregate premium
                      paid on all options on stock indices cannot exceed 20% of
                      the Fund's total assets.
 
                        All of the common stocks in which the Funds invest
                      (including foreign securities in the form of ADRs, but not
                      including Rule 144A Securities) are traded on registered
                      exchanges or in the over-the-counter market.
 
                        For further information, see "DESCRIPTION OF PERMITTED
                      INVESTMENTS."
 
                      Risk Factors
 
                        Since the Equity Funds invest in equity securities, each
                      Fund's Shares will fluctuate in value, and thus may be
                      more suitable for long-term investors who can bear the
                      risk of short-term fluctuations. In addition, the market
                      value of the fixed-income securities bears an inverse
                      relationship to changes in market interest rates, which
                      may affect the net asset value of Shares. The longer the
                      remaining maturity of a security, the greater is the
                      effect of interest rate changes on its market value.
                      Changes in the value of a Fund's fixed-income securities
                      will not affect cash income received from ownership of
                      such securities, but will affect a Fund's net asset value.
 
                        An Equity Fund may invest in convertible securities,
                      which include corporate bonds, notes or preferred stocks
                      that can be converted into common stocks or other equity
                      securities. Convertible securities also include other
                      securities, such as warrants, that provide an opportunity
                      for equity participation. Because convertible securities
                      can be converted into common stock, their values will
                      normally vary in some proportion with those of the
                      underlying common stock. Convertible securities usually
                      provide a higher yield than the underlying common stock,
                      however, so that the price decline of a convertible
                      security may sometimes be less substantial than that of
                      the underlying common stock. The value of convertible
                      securities that pay dividends or interest, like the value
                      of all fixed-income securities, generally fluctuates
                      inversely with changes in interest rates. Warrants have no
                      voting rights, pay no dividends and have no rights with
                      respect to the assets of the corporation issuing them.
                      They do not represent ownership of the securities for
                      which they are exercisable, but only the right to buy such
                      securities at a particular price. The Equity Funds will
                      not purchase any convertible debt security or convertible
                      preferred stock unless it has been rated as investment
                      grade at the time of acquisition by a NRSRO or that is not
                      rated but is determined to be of comparable quality by the
                      Advisor.
 
                        Given the uncertainty of the future value of emerging
                      growth companies and companies in special equity
                      situations, the risk of possible decline in value of the
                      Emerging Growth Fund's net assets are significant.
                      Companies in which the
 
                                       17
<PAGE>   238
 
                      Emerging Growth Fund invests may offer greater
                      opportunities for capital appreciation than larger more
                      established companies, but investment in such companies
                      may involve certain special risks. These risks may be due
                      to the greater business risks of small size, limited
                      markets and financial resources, narrow product lines and
                      frequent lack of depth in management. The securities of
                      such companies are often traded in the over-the-counter
                      market and may not be traded in volumes typical on a
                      national securities exchange. Thus, the securities of
                      emerging growth companies may be less liquid, and subject
                      to more abrupt or erratic market movements than securities
                      of larger, more established growth companies. Since a
                      "special equity situation" may involve a significant
                      change from a company's past experiences, the
                      uncertainties in the appraisal of the future value of the
                      company's equity securities and the risk of a possible
                      decline in the value of the Fund's investments are
                      significant.
 
INVESTMENT
LIMITATIONS             Each Fund may not:
 
                        1) Purchase securities of any one issuer, other than
                      obligations issued or guaranteed by the U.S. Government,
                      its agencies, or instrumentalities, if, immediately after
                      the purchase, more than 5% of the value of such Fund's
                      total assets would be invested in the issuer or the Fund
                      would hold more than 10% of any class of securities of the
                      issuer or more than 10% of the issuer's outstanding voting
                      securities (except that up to 25% of the value of the
                      Fund's total assets may be invested without regard to
                      these limitations).
 
                        2) Purchase any securities that would cause more than
                      25% of such Fund's total assets at the time of purchase to
                      be invested in securities of one or more issuers
                      conducting their principal business activities in the same
                      industry, provided that (a) there is no limitation with
                      respect to obligations issued or guaranteed by the U.S. or
                      foreign governments or their agencies or instrumentalities
                      and repurchase agreements secured by obligations of the
                      U.S. Government or its agencies or instrumentalities; (b)
                      wholly owned finance companies will be considered to be in
                      the industries of their parents if their activities are
                      primarily related to financing the activities of their
                      parents; and (c) utilities will be divided according to
                      their services (for example, gas, gas transmission,
                      electric and gas, electric, and telephone will each be
                      considered a separate industry);
 
                        3) Make loans, except that a Fund may purchase or hold
                      debt instruments, lend portfolio securities, and enter
                      into repurchase agreements in accordance with its
                      investment objective and policies.
 
                        The foregoing percentages will apply at the time of the
                      purchase of a security. The investment limitations listed
                      above are fundamental policies the substance of which may
                      not be changed without a vote of a majority of the
                      outstanding Shares
 
                                       18
<PAGE>   239
 
                      of the respective Fund. Additional fundamental and
                      non-fundamental investment limitations are set forth in
                      the Statement of Additional Information.
 
                      Portfolio Turnover
 
                        A Fund's portfolio turnover rate will not be a factor
                      preventing a sale or purchase when the Advisor believes
                      investment considerations warrant. Each of the Equity
                      Funds' portfolio turnover rate may vary greatly from year
                      to year as well as within a particular year. High
                      portfolio turnover rates generally will result in
                      correspondingly higher brokerage and other transactions
                      costs to the Equity Funds and could involve the
                      realization of capital gains that would be taxable when
                      distributed to Shareholders of the relevant Equity Fund.
                      See FEDERAL TAXATION.
 
PURCHASE AND
REDEMPTION OF
SHARES                  As noted above, each Fund (except the Blue Chip Growth
                      Fund, which is offered only in Fiduciary Shares) is
                      divided into two classes of Shares, Retail and Fiduciary.
                      Fiduciary Shares may be purchased at net asset value. Only
                      the following investors qualify to purchase an Equity
                      Fund's Fiduciary Shares: (i) fiduciary, advisory, agency,
                      custodial and other similar accounts maintained with Union
                      Bank of California, N.A. or its affiliates; (ii) Select
                      IRA accounts established with The Bank of California, N.A.
                      and invested in any of HighMark's Equity or Income Funds
                      prior to June 20, 1994, which have remained continuously
                      open thereafter and which are not considered to be
                      fiduciary accounts; (iii) Shareholders who currently own
                      Shares of HighMark's Equity or Income Funds that were
                      purchased prior to June 20, 1994 within an account
                      registered in their name with the Funds; and (iv) present
                      and retired directors, officers and employees (and their
                      spouses and children under the age of 21) of Union Bank of
                      California, N.A., HighMark's current or former
                      distributors or their respective affiliated companies who
                      currently own Shares of HighMark Funds which were
                      purchased before April 30, 1997. For a description of
                      investors who qualify to purchase Retail Shares, see the
                      Retail Shares prospectus of the Equity Funds.
 
                        Purchases and redemptions of Shares of the Funds may be
                      made on days on which both the New York Stock Exchange and
                      Federal Reserve wire system are open for business
                      ("Business Days"). The minimum initial investment is
                      generally $1,000 for each Fund and the minimum subsequent
                      investment is generally only $100. For present and retired
                      directors, officers, and employees (and their spouses and
                      children under the age of 21) of Union Bank of California,
                      SEI Financial Services Company and their affiliates, the
                      minimum initial investment is $250 and the minimum
                      subsequent investment is $50. A Fund's initial and
                      subsequent minimum purchase amounts may be waived if
                      purchases are made in connection with Individual
                      Retirement Accounts, Keoghs, payroll deduction plans, or
                      401(k) or similar plans. However, the minimum investment
                      may be
 
                                       19
<PAGE>   240
 
                      waived in the Distributor's discretion. Shareholders may
                      place orders by telephone.
 
                        Purchase orders will be effective if the Distributor
                      receives an order before 1:00 p.m., Pacific time (4:00
                      p.m., Eastern time) and the custodian receives Federal
                      funds before the close of business on the next Business
                      Day. The purchase price of Shares of a Fund is the net
                      asset value next determined after a purchase order is
                      received and accepted by HighMark. The net asset value per
                      Share of a Fund is determined by dividing the total market
                      value of a Fund's investments and other assets, less any
                      liabilities, by the total number of outstanding Shares of
                      a Fund. Net asset value per share is determined daily as
                      of 1:00 p.m., Pacific time (4:00 p.m., Eastern time) on
                      any Business Day. Purchases will be made in full and
                      fractional Shares of HighMark calculated to three decimal
                      places. HighMark reserves the right to reject a purchase
                      order when the Distributor determines that it is not in
                      the best interest of HighMark and/or its Shareholders to
                      accept such order.
 
                        Shares of the Funds are offered only to residents of
                      states in which the Shares are eligible for purchase.
 
                        Shareholders who desire to redeem shares of HighMark
                      must place their redemption orders prior to 1:00 p.m.,
                      Pacific time (4:00 p.m., Eastern time), on any Business
                      Day for the order to be accepted on that Business Day. The
                      redemption price is the net asset value of the Fund next
                      determined after receipt by the Distributor of the
                      redemption order. Payment on redemption will be made as
                      promptly as possible and, in any event, within seven
                      calendar days after the redemption order is received. The
                      Funds reserve the right to make payment for redemptions in
                      securities rather than cash.
 
                        Neither HighMark's transfer agent nor HighMark will be
                      responsible for any loss, liability, cost or expense for
                      acting upon wire instructions or upon telephone
                      instructions that it reasonably believes to be genuine.
                      HighMark and its transfer agent will each employ
                      reasonable procedures to confirm that telephone
                      instructions are genuine. Such procedures may include
                      taping of telephone conversations. If market conditions
                      are extraordinarily active or other extraordinary
                      circumstances exist, and you experience difficulties
                      placing redemption orders by telephone, you may wish to
                      consider placing your order by other means.
 
EXCHANGE
PRIVILEGES              As indicated under GENERAL INFORMATION--Description of
                      HighMark & Its Shares, certain of HighMark's Funds issue
                      two classes of Shares (Retail Shares and Fiduciary
                      Shares); as of the date of this Prospectus, the
                      Distribution Plan and distribution fee payable thereunder
                      are applicable only to such Fund's Retail Shares. A
                      Shareholder's eligibility to exchange into a particular
                      class of Shares will be determined at the time of the
                      exchange. The Shareholder must
 
                                       20
<PAGE>   241
 
                      supply, at the time of the exchange, the necessary
                      information to permit confirmation of qualification.
 
                        Each Fund's Shares may be exchanged for Shares of the
                      class of the various other Funds of HighMark which the
                      Shareholder qualifies to purchase directly so long as the
                      Shareholder maintains the applicable minimum account
                      balance in each Fund in which he or she owns Shares and
                      satisfies the minimum initial and subsequent purchase
                      amounts of the Fund into which the Shares are exchanged.
                      Shareholders may exchange their Fiduciary Shares for
                      Fiduciary Shares of another Fund on the basis of the
                      relative net asset value of the Fiduciary Shares
                      exchanged. Shareholders may also exchange Fiduciary Shares
                      of a Fund for Retail Shares of another Fund. Under such
                      circumstances, the cost of the acquired Retail Shares will
                      be the net asset value per share plus the appropriate
                      sales load.
 
                        Exchanges will be made on the basis of the relative net
                      asset values of the Shares exchanged plus any applicable
                      sales charge. Exchanges are subject to the terms and
                      conditions stated herein and the terms and conditions
                      stated in the respective prospectuses of the Funds.
 
                        Certain entities (including participating organizations
                      and Union Bank of California and its affiliates), however,
                      may charge customers a fee with respect to exchanges made
                      on the customer's behalf. Information about these charges,
                      if any, can be obtained by the entity effecting the
                      exchange and this Prospectus should be read in conjunction
                      with that information.
 
                        A Shareholder wishing to exchange Shares in an Equity
                      Fund may do so by contacting the transfer agent at
                      1-800-433-6884. Exchanges will be effected on any Business
                      Day at the net asset value of the Funds involved in the
                      exchange next determined after the exchange request is
                      received by the transfer agent.
 
                        An exchange is considered to be a sale of Shares for
                      federal income tax purposes on which a Shareholder may
                      realize a capital gain or loss. Exchange privileges may be
                      exercised only in those states where Shares of such other
                      Funds of HighMark may legally be sold. HighMark may
                      materially amend or terminate the exchange privileges
                      described herein upon sixty days' notice.
 
DIVIDENDS               The net income of each of the Equity Funds is declared
                      and paid monthly as a dividend to Shareholders of record
                      at the close of business on the day of declaration. Net
                      realized capital gains are distributed at least annually
                      to Shareholders of record.
 
                        Shareholders will automatically receive all income
                      dividends and capital gains distributions in additional
                      full and fractional Shares of a Fund at net asset value as
                      of the date of declaration (which is also the ex-dividend
                      date), unless the
 
                                       21
<PAGE>   242
 
                      Shareholder elects to receive such dividends or
                      distributions in cash. Shareholders wishing to receive
                      their dividends in cash (or wishing to revoke a previously
                      made election) must notify the transfer agent at P.O. Box
                      8416, Boston, MA 02266-8416, and such election (or
                      revocation thereof) will become effective with respect to
                      dividends and distributions having record dates after
                      notice has been received. Dividends paid in additional
                      Shares receive the same tax treatment as dividends paid in
                      cash.
 
FEDERAL
TAXATION                Each Equity Fund intends to qualify for treatment as a
                      "regulated investment company" under the Internal Revenue
                      Code of 1986, as amended (the "Code"), and to distribute
                      substantially all of its net investment income and net
                      realized capital gains so that each Fund is not required
                      to pay federal taxes on these amounts.
 
                        Distributions of ordinary income and/or an excess of net
                      short-term capital gain over net long-term capital loss
                      are treated for federal income tax purposes as ordinary
                      income to Shareholders. The 70 percent dividends received
                      deduction for corporations generally will apply to these
                      distributions to the extent the distribution represents
                      amounts that would qualify for the dividends received
                      deduction when received by a Fund if a Fund were a regular
                      corporation, and to the extent designated by a Fund as so
                      qualifying. Distributions by the Fund of the excess of net
                      long-term capital gain over net short-term capital loss is
                      taxable to Shareholders as long-term capital gain in the
                      year with respect to which it is received, regardless of
                      how long the Shareholder has held Shares of the Fund. Such
                      distributions are not eligible for the dividends received
                      deduction. If a Shareholder disposes of Shares in a Fund
                      at a loss before holding such Shares for longer than six
                      months, such loss will be treated as a long-term capital
                      loss to the extent the Shareholder has received long-term
                      capital gain dividends on the Shares.
 
                        Prior to purchasing Shares of the Equity Funds, the
                      impact of dividends or capital gain distributions that are
                      expected to be declared or have been declared, but not
                      paid, should be carefully considered. Dividends or capital
                      gain distributions received after a purchase of Shares are
                      subject to federal income taxes, although in some
                      circumstances, the dividends or distributions may be, as
                      an economic matter, a return of capital to the
                      Shareholder. A Shareholder should consult his or her
                      advisor for specific advice about the tax consequences to
                      the Shareholder of investing in a Fund.
 
                        Additional information regarding federal taxes is
                      contained in the Statement of Additional Information.
                      However, the foregoing and the material in the Statement
                      of Additional Information are only brief summaries of some
                      of the important tax considerations generally affecting
                      each Fund and its Shareholders.
 
                                       22
<PAGE>   243
 
                      In addition, the foregoing discussion and the federal tax
                      information in the Statement of Additional Information are
                      based on tax laws and regulations which are in effect as
                      of the date of this Prospectus; these laws and regulations
                      may subsequently change, and such changes could be
                      retroactive.
 
                        Shareholders will be advised at least annually as to the
                      federal income tax status of distributions made during the
                      year.
 
SERVICE
ARRANGEMENTS          The Advisor
 
                        Pacific Alliance Capital Management, a division of Union
                      Bank of California, N.A. serves as the Equity Funds'
                      investment advisor. Subject to the general supervision of
                      HighMark's Board of Trustees, the Advisor manages each
                      Fund in accordance with its investment objective and
                      policies, makes decisions with respect to and places
                      orders for all purchases and sales of the Fund's
                      investment securities, and maintains the Fund's records
                      relating to such purchases and sales.
 
                        For the expenses assumed and services provided by the
                      Advisor as each Fund's investment advisor, Union Bank of
                      California receives a fee from the Growth Fund, Value
                      Momentum Fund, Income Equity Fund and Blue Chip Growth
                      Fund, computed daily and paid monthly, at the annual rate
                      of sixty one-hundredths of one percent (.60%) of the
                      Fund's average daily net assets, and from the Emerging
                      Growth Fund, at the annual rate of eighty one-hundredths
                      of one percent (.80%) of the Fund's average daily net
                      assets. This fee may be higher than the advisory fee paid
                      by most mutual funds, although the Board of Trustees
                      believes it will be comparable to advisory fees paid by
                      many funds having similar objectives and policies. Union
                      Bank of California may from time to time agree to
                      voluntarily reduce its advisory fee, however, it is not
                      currently doing so. While there can be no assurance that
                      Union Bank of California will choose to make such an
                      agreement, any voluntary reductions in Union Bank of
                      California's advisory fee will lower the Fund's expenses,
                      and thus increase the Fund's yield and total return,
                      during the period such voluntary reductions are in effect.
                      During HighMark's fiscal year ended July 31, 1996, Union
                      Bank of California received investment advisory fees from
                      the Growth Fund aggregating 0.50% of the Fund's average
                      daily net assets, and from the Income Equity Fund
                      aggregating 0.66% of the Fund's average daily net assets.
                      As of the date of this prospectus, the Value Momentum
                      Fund, the Emerging Growth Fund, and the Blue Chip Equity
                      Fund had not yet commenced operations in HighMark.
 
                        On April 1, 1996, the Bank of California, N.A.,
                      HighMark's then investment advisor, combined with Union
                      Bank and the resulting bank changed its name to Union Bank
                      of California, N.A. At the same time, the banks'
                      investment management divisions were combined. Each of
                      Union Bank and The Bank of California, N.A. (or their
                      predecessor banks) has been in banking since the early
 
                                       23
<PAGE>   244
 
                      1900's and, historically, each has had significant
                      investment functions within its trust and investment
                      division. UnionBanCal Corporation, the parent of Union
                      Bank of California, N.A., is a publicly held corporation,
                      but is principally held by The Bank of Tokyo-Mitsubishi,
                      Ltd. As of September 30, 1996, Union Bank of California
                      and its subsidiaries had approximately $28.7 billion in
                      commercial assets. Pacific Alliance Capital Management is
                      a division of Union Bank of California's Trust and
                      Investment Management Group which, as of June 30, 1996,
                      had approximately $13.4 billion of assets under
                      management. The Advisor, with a team of approximately 45
                      stock and bond research analysts, portfolio managers and
                      traders, has been providing investment management services
                      to individuals, institutions and large corporations since
                      1917.
 
                        All investment decisions for the Equity Funds are made
                      by a team of investment professionals, all of whom take an
                      active part in the decision making process. The team
                      leaders for each Fund are as follows:
 
                           Growth Fund -- The team leader for the Growth Fund is
                           Scott Chapman. Mr. Chapman has been Growth Fund team
                           leader for the Advisor since 1993. He began working
                           for the Advisor as an equity security analyst in
                           1991.
 
                           Value Momentum Fund -- The team leader for the Value
                           Momentum Fund is Richard Earnest. Mr. Earnest, a
                           Senior Vice President of the Advisor, has served as
                           team leader of the Stepstone Value Momentum Fund
                           since its inception, and has been with the Advisor
                           and its predecessor, Union Bank, since 1964.
 
                           Income Equity Fund -- The team leader for the Income
                           Equity Fund is Thomas Arrington. Mr. Arrington began
                           working for the Advisor as a Business Administration
                           Manager in 1990. From 1991 to 1994 Mr. Arrington was
                           a Securities Research Analyst. In 1994 Mr. Arrington
                           became team leader for the Income Equity Fund.
 
                      Sub-Advisor
 
                        The Advisor and Bank of Tokyo-Mitsubishi Trust Company
                      (the "Sub-Advisor") have entered into an investment
                      subadvisory agreement relating to the Emerging Growth and
                      Blue Chip Growth Funds (the "Investment Sub-Advisory
                      Agreement"). Under the Investment Sub-Advisory Agreement,
                      the Sub-Advisor will make the day-to-day investment
                      decisions for the assets of the Emerging Growth and Blue
                      Chip Growth Funds, subject to the supervision of, and
                      policies established by, the Advisor and the Trustees of
                      HighMark.
 
                                       24
<PAGE>   245
 
                        Bank of Tokyo-Mitsubishi Trust Company, headquartered at
                      1251 Avenue of the Americas, New York, New York 10116,
                      operates as a wholly-owned subsidiary of The Bank of
                      Tokyo-Mitsubishi, Ltd. The Sub-Advisor was formed by the
                      combination on April 1, 1996, of Bank of Tokyo Trust
                      Company, a wholly-owned subsidiary of The Bank of Tokyo,
                      Ltd., and Mitsubishi Bank Trust Company of New York, a
                      wholly-owned subsidiary of The Mitsubishi Bank, Limited.
                      Bank of Tokyo Trust Company was the surviving entity, and
                      changed its name to Bank of Tokyo-Mitsubishi Trust
                      Company. Prior to the combination, subadvisory services
                      were provided by Bank of Tokyo Trust Company. Bank of
                      Tokyo Trust Company was established in 1955, and has
                      provided trust services since that time and management
                      services since 1965.
 
                        The Sub-Advisor serves as portfolio manger to bank
                      common funds, employee benefit funds and personal trust
                      accounts, managing assets in money market, equity and
                      fixed income portfolios. As of June 30, 1996, the
                      Sub-Advisor managed $700 million in individual portfolios
                      and collective funds. In addition, the Sub-Advisor will
                      also serve as Sub-Advisor to HighMark's Government
                      Securities and Convertible Securities Funds.
 
                        The Sub-Advisor is entitled to a fee, which is
                      calculated daily and paid monthly out of the Advisor's
                      fee, at an annual rate of .50% of the average daily net
                      assets of the Emerging Growth Fund and .30% of the average
                      daily net assets of the Blue Chip Growth Fund. As of the
                      date of this prospectus, the Emerging Growth Fund and the
                      Blue Chip Growth Fund had not yet commenced operations in
                      HighMark.
 
                        Seth E. Shalov will serve as portfolio manager to the
                      Emerging Growth Fund. Mr. Shalov has been a Senior
                      Portfolio Manager with the Sub-Advisor and its
                      predecessor, Bank of Tokyo Trust Company, since October,
                      1987.
 
                        The day-to-day management of the Blue Chip Growth Fund's
                      investments is the responsibility of a team of investment
                      professionals.
 
                      Administrator
 
                        SEI Fund Resources (the "Administrator") and HighMark
                      are parties to an administration agreement (the
                      "Administration Agreement"). Under the terms of the
                      Administration Agreement, the Administrator provides
                      HighMark with certain management services, including all
                      necessary office space, equipment, personnel, and
                      facilities.
 
                        The Administrator is entitled to a fee, which is
                      calculated daily and paid monthly, at an annual rate of
                      .20% of the average daily net assets of the Funds. The
                      Administrator may waive its fee or reimburse various
                      expenses to the extent necessary to limit the total
                      operating expenses of a Fund's Fiduciary Shares. Any
 
                                       25
<PAGE>   246
 
                      such waiver is voluntary and may be terminated at any time
                      in the Administrator's sole discretion. Currently, the
                      Administrator has agreed to waive its fee to the rate of
                      .18% of the average daily net assets of the Funds.
 
                        Pursuant to a separate agreement with the Administrator,
                      Union Bank of California, N.A. performs sub-administration
                      services on behalf of each Fund, for which it receives a
                      fee paid by the Administrator at the annual rate of up to
                      0.05% of the average daily net assets of the Funds. Union
                      Bank of California has voluntarily agreed to reduce this
                      fee to 0.03%, but reserves the right to terminate its
                      waiver at any time in its sole discretion. A description
                      of the services performed by Union Bank of California
                      pursuant to this Agreement is contained in the Statement
                      of Additional Information.
 
                      The Transfer Agent
 
                        State Street Bank and Trust Company serves as the
                      transfer agent, dividend disbursing agent, and as a
                      shareholder servicing agent for the Fiduciary Shares of
                      HighMark for which services it receives a fee.
 
                      Shareholder Service Plan
 
                        To support the provision of Shareholder services to both
                      classes of Shares, HighMark has adopted a Shareholder
                      Service Plan. A description of the services performed by
                      service providers pursuant to the Shareholder Service Plan
                      is contained in the Statement of Additional Information.
                      In consideration of services provided by any service
                      provider, which may include Union Bank of California,
                      N.A., Bank of Tokyo-Mitsubishi, Ltd., or their respective
                      affiliates, each Fund may pay a fee at the rate of up to
                      0.25% of its average daily net assets to such service
                      provider. The service provider may waive such fees at any
                      time. Any such waiver is voluntary and may be terminated
                      at any time. Currently, such fees are being waived to the
                      rate of 0.10% of average daily net assets for the
                      Fiduciary Shares of the Income Equity Fund, 0.09% for the
                      Fiduciary Shares of the Growth Fund and 0.00% for the
                      Fiduciary Shares of the Value Momentum, Blue Chip Growth
                      and Emerging Growth Funds.
 
                      Distributor
 
                        SEI Financial Services Company (the "Distributor") and
                      HighMark are parties to a distribution agreement
                      ("Distribution Agreement"). The Distribution Agreement is
                      renewable annually and may be terminated by the
                      Distributor, by a majority vote of the Disinterested
                      Trustees or by a majority vote of the outstanding
                      securities of HighMark upon not more than 60 days written
                      notice by either party, or upon assignment by the
                      Distributor. Fiduciary Shares are not subject to
                      HighMark's Distribution Plan or a distribution fee.
 
                                       26
<PAGE>   247
 
                      Banking Laws
 
                        Union Bank of California believes that it may perform
                      the services for the Funds contemplated by its investment
                      advisory agreement with HighMark without a violation of
                      applicable banking laws and regulations. Union Bank of
                      California also believes that it may perform
                      sub-administration and sub-accounting services on behalf
                      of each Fund, for which it receives compensation from SEI
                      Fund Resources without a violation of applicable banking
                      laws and regulations. Future changes in federal or state
                      statutes and regulations relating to permissible
                      activities of banks or bank holding companies and their
                      subsidiaries and affiliates, as well as further judicial
                      or administrative decisions or interpretations of present
                      and future statutes and regulations, could change the
                      manner in which Union Bank of California or the Advisor
                      could continue to perform such services for the Funds. For
                      a further discussion of applicable banking laws and
                      regulations, see the Statement of Additional Information.
 
                      Custodian
 
                        Union Bank of California also serves as the custodian
                      and as a shareholder servicing agent for the Equity Funds.
                      The Custodian holds cash securities and other assets of
                      HighMark as required by the 1940 Act.
 
                        Services performed by Union Bank of California, as the
                      Funds' shareholder servicing agent and custodian, as well
                      as the basis of remuneration for such services, are
                      described in the Statement of Additional Information.
 
GENERAL
INFORMATION           Description of Highmark & Its Shares
 
                        HighMark was organized as a Massachusetts business trust
                      on March 10, 1987, and consists of sixteen series of
                      Shares open for investment representing units of
                      beneficial interest in HighMark's Growth Fund, Income
                      Equity Fund, Balanced Fund, Value Momentum Fund, Blue Chip
                      Growth Fund, Emerging Growth Fund, International Equity
                      Fund, Bond Fund, Intermediate-Term Bond Fund, Government
                      Securities Fund, Convertible Securities Fund, California
                      Intermediate Tax-Free Bond Fund, Diversified Money Market
                      Fund, U.S. Government Obligations Money Market Fund, 100%
                      U.S. Treasury Obligations Money Market Fund, and
                      California Tax-Free Money Market Fund. As of the date
                      hereof, no Shares of the Value Momentum Fund, the Blue
                      Chip Growth Fund, the Emerging Growth Fund, the
                      International Equity Fund, the Intermediate-Term Bond
                      Fund, the Convertible Securities Fund, the Government
                      Securities Fund, and the California Intermediate Tax-Free
                      Bond Fund had been offered for sale in the HighMark Group.
                      Shares of each Fund are freely transferable, are entitled
                      to distributions from the assets of the Fund as declared
                      by the Board of
 
                                       27
<PAGE>   248
 
                      Trustees, and, if HighMark were liquidated, would receive
                      a pro rata share of the net assets attributable to that
                      Fund. Shares are without par value.
 
                        As noted above, pursuant to a Multiple Class Plan on
                      file with the Securities and Exchange Commission
                      permitting the issuance and sale of two classes of Shares
                      in selected Funds, Shares of such Funds have been divided
                      into two classes, designated Retail Shares and Fiduciary
                      Shares. For information regarding the Retail Shares of the
                      Equity Funds, interested persons may contact the
                      Distributor for a prospectus at 1-800-433-6884.
 
                        HighMark believes that as of November 22, 1996, Union
                      Bank of California (475 Sansome Street, Post Office Box
                      45000, San Francisco, CA 94104) was the Shareholder of
                      record of 85.57% of the Fiduciary Shares of the Growth
                      Fund and 73.24% of the Fiduciary Shares of the Income
                      Equity Fund. As of November 22, 1996, the Value Momentum,
                      Emerging Growth and Blue Chip Growth Funds had not yet
                      commenced operations in HighMark.
 
                      Performance Information
 
                        From time to time, HighMark may advertise the aggregate
                      total return, average annual total return, yield and
                      distribution rate with respect to the Fiduciary Shares of
                      each Equity Fund. Performance information is computed
                      separately for a Fund's Retail and Fiduciary Shares in
                      accordance with the formulas described below.
 
                        The aggregate total return and average annual total
                      return of the Equity Funds may be quoted for the life of
                      each Fund and for ten-year, five-year, three-year, and
                      one-year periods, in each case through the most recent
                      calendar quarter (in the case of the Income Equity Fund,
                      utilizing, when appropriate, the aggregate total return
                      and average annual total return of the IRA Fund Income
                      Equity Portfolio prior to June 23, 1988). Aggregate total
                      return is determined by calculating the change in the
                      value of a hypothetical $1,000 investment in a Fund over
                      the applicable period that would equate the initial amount
                      invested to the ending redeemable value of the investment.
                      The ending redeemable value includes dividends and capital
                      gain distributions reinvested at net asset value. Average
                      annual total return is calculated by annualizing a Fund's
                      aggregate total return over the relevant number of years.
                      The resulting percentage indicates the average positive or
                      negative investment results that an investor in a Fund
                      would have experienced on an annual basis from changes in
                      Share price and reinvestment of dividends and capital gain
                      distributions.
 
                        The yield of a Fund is determined by annualizing the net
                      investment income per Share of the Fund during a specified
                      thirty-day period and dividing that
 
                                       28
<PAGE>   249
 
                      amount by the per Share public offering price of the Fund
                      on the last day of the period.
 
                        The distribution rate of a Fund is determined by
                      dividing the income and capital gains distributions, or
                      where indicated the income distributions alone, on a Share
                      of the Fund over a twelve-month period by the per Share
                      public offering price of the Fund on the last day of the
                      period.
 
                        Each Fund may periodically compare its performance to
                      the performance of other mutual funds tracked by mutual
                      fund rating services (such as Lipper Analytical);
                      financial and business publications and periodicals; broad
                      groups of comparable mutual funds; unmanaged indices which
                      may assume investment of dividends but generally do not
                      reflect deductions for administrative and management
                      costs; or other investment alternatives. Certain Funds may
                      advertise performance that includes results from periods
                      in which the Fund's assets were managed in a
                      non-registered predecessor vehicle.
 
                        All performance information presented for a Fund is
                      based on past performance and does not predict future
                      performance.
 
                      Miscellaneous
 
                        Shareholders will be sent unaudited semi-annual reports
                      and annual reports audited by independent public
                      accountants.
 
                        Shareholders are entitled to one vote for each Share
                      held in a Fund as determined on the record date for any
                      action requiring a vote by the Shareholders, and a
                      proportionate fractional vote for each fractional Share
                      held. Shareholders of HighMark will vote in the aggregate
                      and not by series or class except (i) as otherwise
                      expressly required by law or when HighMark's Board of
                      Trustees determines that the matter to be voted upon
                      affects only the interests of the Shareholders of a
                      particular series or particular class, and (ii) only
                      Retail Shares will be entitled to vote on matters
                      submitted to a Shareholder vote relating to the
                      Distribution Plan. HighMark is not required to hold
                      regular annual meetings of Shareholders, but may hold
                      special meetings from time to time.
 
                        HighMark's Trustees are elected by Shareholders, except
                      that vacancies may be filled by vote of the Board of
                      Trustees. Trustees may be removed by the Board of
                      Trustees, or by Shareholders at a meeting called for such
                      purpose. For information about how Shareholders may call
                      such a meeting and communicate with other Shareholders for
                      that purpose, see ADDITIONAL INFORMATION--Miscellaneous in
                      the Statement of Additional Information.
 
                        Inquiries may be directed in writing to SEI Financial
                      Services Company,Oaks, Pennsylvania 19456, or by calling
                      toll free 1-800-433-6884.
 
                                       29
<PAGE>   250
 
DESCRIPTION OF
PERMITTED
INVESTMENTS             The following is a description of permitted investments
                      for the HighMark Equity Funds.
 
                        AMERICAN DEPOSITARY RECEIPTS (ADRs)--ADRs are receipts
                      typically issued by a U.S. financial institution that
                      evidence ownership of underlying securities issued by a
                      foreign issuer.
 
                        ASSET-BACKED SECURITIES (NON-MORTGAGE)--Instruments
                      secured by company receivables, truck and auto loans,
                      leases, and credit card receivables. Such securities are
                      generally issued as pass-through certificates, which
                      represent undivided fractional ownership interests in the
                      underlying pools of assets. Such securities also may be
                      debt instruments, which are also known as collateralized
                      obligations and are generally issued as the debt of a
                      special purpose entity, such as a trust, organized solely
                      for the purpose of owning such assets and issuing such
                      debt. The purchase of non-mortgage asset-backed securities
                      raises risk considerations peculiar to the financing of
                      the instruments underlying such securities. Asset-backed
                      securities entail prepayment risk, which may vary
                      depending on the type of asset, but is generally less than
                      the prepayment risk associated with mortgage-backed
                      securities.
 
                        Like mortgages underlying mortgage-backed securities,
                      underlying automobile sales contracts or credit card
                      receivables are subject to substantial prepayment risk,
                      which may reduce the overall return to certificate
                      holders. Nevertheless, principal prepayment rates tend not
                      to vary as much in response to changes in interest rates
                      and the short-term nature of the underlying car loans or
                      other receivables tend to dampen the impact of any change
                      in the prepayment level. Certificate holders may also
                      experience delays in payment on the certificates if the
                      full amounts due on underlying sales contracts or
                      receivables are not realized by the trust because of
                      unanticipated legal or administrative costs of enforcing
                      the contracts or because of depreciation or damage to the
                      collateral (usually automobiles) securing certain
                      contracts, or other factors. If consistent with their
                      investment objectives and policies, the Equity Funds may
                      invest in other asset-backed securities that may be
                      developed in the future.
 
                        BANKERS' ACCEPTANCES--Bills of exchange or time drafts
                      drawn on and accepted by commercial banks. They are used
                      by corporations to finance the shipment and storage of
                      goods and to furnish dollar exchange. Maturities are
                      generally six months or less.
 
                        CERTIFICATES OF DEPOSIT--Negotiable interest-bearing
                      instruments with a specific maturity. Certificates of
                      deposit are issued by banks and savings and loan
                      institutions in exchange for the deposit of funds and
                      normally can be traded in the secondary market prior to
                      maturity.
 
                                       30
<PAGE>   251
 
                        COMMERCIAL PAPER--Unsecured short-term promissory notes
                      issued by corporations and other entities. Maturities on
                      these issues vary from a few days to nine months. Purchase
                      of such instruments involves a risk of default by the
                      issuer.
 
                        CONVERTIBLE BONDS AND CONVERTIBLE PREFERRED
                      STOCK--Convertible Bonds are bonds convertible into a set
                      number of shares of another form of security (usually
                      common stock) at a prestated price. Convertible bonds have
                      characteristics similar to both fixed-income and equity
                      securities. Convertible preferred stock is a class of
                      capital stock that pays dividends at a specified rate and
                      that has preference over common stock in the payment of
                      dividends and the liquidation of assets. Convertible
                      preferred stock is preferred stock exchangeable for a
                      given number of common stock shares, and has
                      characteristics similar to both fixed-income and equity
                      securities. Because of the conversion feature, the market
                      value of convertible bonds and convertible preferred stock
                      tend to move together with the market value of the
                      underlying stock. As a result, a Fund's selection of
                      convertible bonds and convertible preferred stock is
                      based, to a great extent, on the potential for capital
                      appreciation that may exist in the underlying stock. The
                      value of convertible bonds and convertible preferred stock
                      is also affected by prevailing interest rates, the credit
                      quality of the issuer and any call provisions.
 
                        DERIVATIVES--Instruments whose value is derived from an
                      underlying contract, index or security, or any combination
                      thereof, including futures, options (e.g., puts and
                      calls), options on futures, swap agreements, and some
                      mortgage-backed securities (CMOs, REMICs, IOs and POs).
                      See elsewhere in this "DESCRIPTION OF PERMITTED
                      INVESTMENTS" for discussions of these various instruments,
                      and see "INVESTMENT OBJECTIVES" and "INVESTMENT POLICIES"
                      for more information about any policies and limitations
                      applicable to their use.
 
                        FUTURES AND OPTIONS ON FUTURES--Some futures strategies,
                      including selling futures, buying puts and writing calls,
                      reduce a Fund's exposure to price fluctuations. Other
                      strategies, including buying futures, writing puts and
                      buying calls, tend to increase market exposure. Futures
                      and options may be combined with each other in order to
                      adjust the risk and return characteristics of the overall
                      portfolio.
 
                        Options and futures can be volatile instruments, and
                      involve certain risks that, if applied at an inappropriate
                      time, could negatively impact a Fund's return.
 
                        INVESTMENT GRADE BONDS--Interest-bearing or discounted
                      government or corporate securities that obligate the
                      issuer to pay the bondholder a specified sum of money,
                      usually at specific intervals, and to repay the principal
                      amount of the loan at maturity. Investment grade bonds are
                      those rated BBB or better by
 
                                       31
<PAGE>   252
 
                      S&P or Baa or better by Moody's or similarly rated by
                      other NRSROs, or, if not rated, determined to be of
                      comparable quality by the Advisor.
 
                        MONEY MARKET INSTRUMENTS--Short-term, debt instruments
                      or deposits and may include, for example, (i) commercial
                      paper rated within the highest rating category by a NRSRO
                      at the time of investment, or, if not rated, determined by
                      the Advisor to be of comparable quality; (ii) obligations
                      (certificates of deposit, time deposits, bank master
                      notes, and bankers' acceptances) of thrift institutions,
                      savings and loans, U.S. commercial banks (including
                      foreign branches of such banks), and U.S. and foreign
                      branches of foreign banks, provided that such institutions
                      (or, in the case of a branch, the parent institution) have
                      total assets of $1 billion or more as shown on their last
                      published financial statements at the time of investment;
                      (iii) short-term corporate obligations rated within the
                      three highest rating categories by a NRSRO (e.g., at least
                      A by S&P or A by Moody's) at the time of investment, or,
                      if not rated, determined by the Advisor to be of
                      comparable quality; (iv) general obligations issued by the
                      U.S. Government and backed by its full faith and credit,
                      and obligations issued or guaranteed as to principal and
                      interest by agencies or instrumentalities of the U.S.
                      Government (e.g., obligations issued by Farmers Home
                      Administration, Government National Mortgage Association,
                      Federal Farm Credit Bank and Federal Housing
                      Administration); (v) receipts, including TRs, TIGRs and
                      CATS; (vi) repurchase agreements involving such
                      obligations; (vii) loan participations issued by a bank in
                      the United States with assets exceeding $1 billion and for
                      which the underlying loan is issued by borrowers in whose
                      obligations the Fund may invest; (viii) money market funds
                      and (ix) foreign commercial paper.
 
                        Certain of the obligations in which a Fund may invest
                      may be variable or floating rate instruments, may involve
                      conditional or unconditional demand features and may
                      include variable amount master demand notes.
 
                        OPTIONS--Under a call option, the purchaser of the
                      option has the right to purchase, and the writer (the
                      Fund) the obligation to sell, the underlying security at
                      the exercise price during the option period. A put option
                      gives the purchaser the right to sell, and the writer the
                      obligation to purchase, the underlying security at the
                      exercise price during the option period.
 
                        In addition, certain Funds may buy options on stock
                      indices to invest cash on an interim basis. Such options
                      will be listed on a national securities exchange. In order
                      to close out an option position, a Fund may enter into a
                      "closing purchase transaction" -- the purchase of an
                      option on the same security with the same exercise price
                      and expiration date as the option contract previously
                      written on any particular security. When the security is
                      sold, a Fund effects a closing purchase transaction so as
                      to close out any existing option on that security.
 
                                       32
<PAGE>   253
 
                        There are risks associated with such investments
                      including the following: (1) the success of a hedging
                      strategy may depend on the ability of the Advisor or
                      Sub-Advisor to predict movements in the prices of
                      individual securities, fluctuations in markets and
                      movements in interest rates; (2) there may be an imperfect
                      correlation between the movement in prices of securities
                      held by a Fund and the price of options; (3) there may not
                      be a liquid secondary market for options; and (4) while a
                      Fund will receive a premium when it writes covered call
                      options, it may not participate fully in a rise in the
                      market value of the underlying security.
 
                        RECEIPTS--Interests in separately traded interest and
                      principal component parts of U.S. Treasury obligations
                      that are issued by banks and brokerage firms and are
                      created by depositing Treasury notes and Treasury bonds
                      into a special account at a custodian bank. The custodian
                      holds the interest and principal payments for the benefit
                      of the registered owners of the certificates of such
                      receipts. The custodian arranges for the issuance of the
                      certificates or receipts evidencing ownership and
                      maintains the register. Receipts include "Treasury
                      Receipts" ("TR's"), "Treasury Investment Growth Receipts"
                      ("TIGR's"), and "Certificates of Accrual on Treasury
                      Securities" ("CATS"). TR's, TIGR's and CATS are sold as
                      zero coupon securities, which means that they are sold at
                      a substantial discount and redeemed at face value at their
                      maturity date without interim cash payments of interest or
                      principal. This discount is accreted over the life of the
                      security, and such accretion will constitute the income
                      earned on the security for both accounting and tax
                      purposes. Because of these features, such securities may
                      be subject to greater interest rate volatility than
                      interest-paying securities. See also "FEDERAL TAXATION."
 
                        REPURCHASE AGREEMENTS--Agreements whereby a Fund will
                      acquire securities from approved financial institutions or
                      registered broker-dealers that agree to repurchase the
                      securities at a mutually agreed-upon date and price. The
                      repurchase agreements entered into by the Funds will
                      provide that the underlying security at all times shall
                      have a value equal to 102% of the resale price stated in
                      the agreement. Repurchase agreements involving government
                      securities are not subject to a Fund's fundamental
                      investment limitation on purchasing securities of any one
                      issuer. If the seller defaults on its repurchase
                      obligation or becomes insolvent, the Fund holding such
                      obligations would suffer a loss to the extent that either
                      the proceeds from a sale of the underlying portfolio
                      securities were less than the repurchase price or the
                      Fund's disposition of the securities was delayed pending
                      court action. Securities subject to repurchase agreements
                      will be held by a qualified custodian or in the Federal
                      Reserve/Treasury book-entry system. Repurchase agreements
                      are considered to be loans by a Fund under the Investment
                      Company Act of 1940 (the "1940 Act").
 
                                       33
<PAGE>   254
 
                        REVERSE REPURCHASE AGREEMENTS--A Fund may borrow funds
                      for temporary purposes by entering into reverse repurchase
                      agreements, provided such action is consistent with the
                      Fund's investment objective and fundamental investment
                      restrictions; as a matter of non-fundamental policy, each
                      Fund intends to limit such investments to no more than 10%
                      of the value of its total assets. Pursuant to a reverse
                      repurchase agreement, a Fund will sell portfolio
                      securities to financial institutions such as banks or to
                      broker-dealers, and agree to repurchase the securities at
                      a mutually agreed-upon date and price. A Fund intends to
                      enter into reverse repurchase agreements only to avoid
                      otherwise selling securities during unfavorable market
                      conditions to meet redemptions. At the time a Fund enters
                      into a reverse repurchase agreement, it will place in a
                      segregated custodial account assets such as U.S.
                      Government securities or other liquid, high-quality debt
                      securities consistent with the Fund's investment objective
                      having a value equal to 102% of the repurchase price
                      (including accrued interest), and will subsequently
                      monitor the account to ensure that an equivalent value is
                      maintained. Reverse repurchase agreements involve the risk
                      that the market value of the securities sold by a Fund may
                      decline below the price at which a Fund is obligated to
                      repurchase the securities. Reverse repurchase agreements
                      are considered to be borrowings by a Fund under the 1940
                      Act.
 
                        RULE 144A SECURITIES--Rule 144A Securities are
                      securities that have not been registered under the
                      Securities Act of 1933, but which may be traded between
                      certain qualified institutional investors, including
                      investment companies. The absence of a secondary market
                      may affect the value of the Rule 144A Securities. The
                      Board of Trustees of HighMark has established guidelines
                      and procedures to be utilized to determine the liquidity
                      of such securities.
 
                        SECURITIES ISSUED ON A FORWARD COMMITMENT BASIS OR
                      WHEN-ISSUED SECURITIES--Securities purchased for delivery
                      beyond the normal settlement date at a stated price and
                      yield and which thereby involve a risk that the yield
                      obtained in the transaction will be less than that
                      available in the market when delivery takes place. When a
                      Fund agrees to purchase when-issued securities or enter
                      into forward commitments, HighMark's custodian will be
                      instructed to set aside cash or liquid portfolio
                      securities equal to the amount of the commitment in a
                      segregated account. A Fund will generally not pay for such
                      securities and no income will accrue on the securities
                      until they are received. These securities are recorded as
                      an asset and are subject to changes in value based upon
                      changes in the general level of interest rates. Therefore,
                      the purchase of securities on a "when-issued" basis or
                      forward commitments may increase the risk of fluctuations
                      in a Fund's net asset value.
 
                        SECURITIES LENDING--During the time portfolio securities
                      are on loan from a Fund, the borrower will pay the Fund
                      any dividends or interest paid on the
 
                                       34
<PAGE>   255
 
                      securities. In addition, loans will be subject to
                      termination by the Fund or the borrower at any time and,
                      while a Fund will generally not have the right to vote
                      securities on loan, it will terminate the loan and regain
                      the right to vote if that is considered important with
                      respect to the investment. While the lending of securities
                      may subject a Fund to certain risks, such as delays or an
                      inability to regain the securities in the event the
                      borrower were to default on its lending agreement or enter
                      into bankruptcy, a Fund will receive 100% collateral in
                      the form of cash or U.S. Government securities. This
                      collateral will be valued daily by the lending agent, with
                      oversight by the Advisor, and, should the market value of
                      the loaned securities increase, the borrower will be
                      required to furnish additional collateral to the Fund.
 
                        SECURITIES SUBJECT TO A PUT FEATURE--A "put" feature
                      permits a Fund to sell a fixed income security at a fixed
                      price prior to maturity. The underlying fixed income
                      securities subject to a put may be sold at any time at the
                      market rates. However, unless the put was an integral part
                      of the fixed income security as originally issued, it may
                      not be marketable or assignable. Generally, a premium is
                      paid for a put feature or a put feature is purchased
                      separately which results in a lower yield than would
                      otherwise be available for the same fixed income
                      securities.
 
                        STANDARD & POOR'S DEPOSITARY RECEIPTS (SPDRs)--SPDRs are
                      interests in a unit investment trust holding a portfolio
                      of securities linked to the S&P 500 Index. SPDRs closely
                      track the underlying portfolio of securities, trade like a
                      share of common stock and pay periodic dividends
                      proportionate to those paid by the portfolio of stocks
                      that constitutes the S&P 500 Index. For further
                      information regarding SPDRs, see the Statement of
                      Additional Information.
 
                        TIME DEPOSITS--Non-negotiable receipts issued by U.S. or
                      foreign banks in exchange for the deposit of funds. Like
                      certificates of deposit, they earn a specified rate of
                      interest over a definite period of time; however, they
                      cannot be traded in the secondary market. Time deposits
                      with a withdrawal penalty are considered to be illiquid
                      securities.
 
                        U.S. GOVERNMENT AGENCY SECURITIES--Certain Federal
                      agencies have been established as instrumentalities of the
                      U.S. Government to supervise and finance certain types of
                      activities. Issues of these agencies, while not direct
                      obligations of the U.S. Government, are either backed by
                      the full faith and credit of the United States (e.g., GNMA
                      securities) or supported by the issuing agencies' right to
                      borrow from the U.S. Treasury. The issues of other
                      agencies are supported only by the credit of the
                      instrumentality (e.g., FNMA securities).
 
                        U.S. TREASURY OBLIGATIONS--Bills, notes, and bonds
                      issued by the U.S. Treasury, as well as separately traded
                      interest and principal component parts of
 
                                       35
<PAGE>   256
 
                      such obligations known as Separately Traded Registered
                      Interest and Principal Securities ("STRIPS") that are
                      transferable through the Federal book-entry system.
 
                        U.S. Government Securities generally do not involve the
                      credit risks associated with investments in other types of
                      fixed-income securities, although, as a result, the yields
                      available from U.S. Government Securities are generally
                      lower than the yields available from otherwise comparable
                      corporate fixed-income securities. Like other fixed-income
                      securities, however, the values of U.S. Government
                      Securities change as interest rates fluctuate.
                      Fluctuations in the value of portfolio securities will in
                      many cases not affect interest income on existing
                      portfolio securities, but will be reflected in the Fund's
                      net asset value. Because the magnitude of these
                      fluctuations will generally be greater at times when a
                      Fund's average maturity is longer, under certain market
                      conditions the Fund may invest in short-term investments
                      yielding lower current income rather than investing in
                      higher yielding longer-term securities.
 
                        VARIABLE AND FLOATING RATE INSTRUMENTS--Obligations that
                      may carry variable or floating rates of interest, may
                      involve conditional or unconditional demand features and
                      may include variable amount master demand notes. The
                      interest rates on these securities may be reset daily,
                      weekly, quarterly or some other reset period, and may have
                      a floor or ceiling on interest rate changes. There is a
                      risk that the current interest rate on such obligations
                      may not accurately reflect existing market interest rates.
                      A demand instrument with a demand notice period exceeding
                      seven days may be considered illiquid if there is no
                      secondary market for such security.
 
                        WARRANTS--Securities that entitle the holder to buy a
                      proportionate amount of common stock at a specified price
                      for a limited or unlimited period of time. Warrants are
                      often freely transferable and are traded on major stock
                      exchanges.
 
                        YANKEE BONDS--Dollar denominated securities issued by
                      foreign-domiciled issuers that obligate the issuer to pay
                      the bondholder a specified sum of money, usually
                      semiannually, and to repay the principal amount of the
                      loan at maturity. Sovereign bonds are bonds issued by the
                      governments of foreign countries. Supranational bonds are
                      those issued by supranational entities, such as the World
                      Bank and European Investment Bank. Canadian bonds are
                      bonds issued by Canadian provinces.
 
                        ZERO-COUPON OBLIGATIONS--Non-income producing securities
                      evidencing ownership of future interest and principal
                      payments on bonds. These obligations pay no current
                      interest and are typically sold at prices greatly
                      discounted from par value. The return on a zero-coupon
                      obligation, when held to maturity, equals the difference
                      between the par value and the original purchase price.
 
                                       36
<PAGE>   257
 
                        For federal income tax purposes, the difference between
                      the par value and the original issue price (original issue
                      discount) is included in the income of a holder of a
                      zero-coupon obligation over the term of the obligation
                      even though the interest is not paid until maturity. The
                      amount included in income is determined under a constant
                      interest rate method. In addition, if an obligation is
                      purchased subsequent to its original issue, a holder such
                      as the Income Funds may elect to include market discount
                      in income currently on a ratable accrual method or a
                      constant interest rate method. Market discount is the
                      difference between the obligation's "adjusted issue price"
                      (the original issue price plus original issue discount
                      accrued to date) and the holder's purchase price. If no
                      such election is made, gain on the disposition of a market
                      discount obligation is treated as ordinary income (rather
                      than capital gain) to the extent it does not exceed the
                      accrued market discount.
 
                        Zero-coupon obligations have greater price volatility
                      than other fixed-income obligations of similar maturity
                      and such obligations will be purchased when the yield
                      spread, in light of the obligation's duration, is
                      considered advantageous.
 
                                       37
<PAGE>   258
 
                             HighMark EQUITY FUNDS
                            INVESTMENT PORTFOLIOS OF
                                 HighMark FUNDS
                   For further information (including current
                  yield, purchase and redemption information),
                             call 1-(800) 433-6884
 
INVESTMENT ADVISOR
Pacific Alliance Capital Management,
a division of Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
SUB-ADVISOR
Bank of Tokyo-Mitsubishi Trust Company
1251 Avenue of the Americas
New York, New York 10116
 
CUSTODIAN
Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
ADMINISTRATOR & DISTRIBUTOR
SEI Fund Resources and
SEI Financial Services Company
Oaks, Pennsylvania 19456
 
LEGAL COUNSEL
Ropes & Gray
One Franklin Square
1301 K Street, N.W., Suite 800 East
Washington, D.C. 20005
 
AUDITORS
Deloitte & Touche LLP
1700 Courthouse Plaza Northeast
Dayton, OH 45402
 
  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS IN CONNECTION WITH THE OFFERING
MADE BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR
REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY HIGHMARK OR
ITS DISTRIBUTOR. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFERING BY HIGHMARK OR
BY THE DISTRIBUTOR IN ANY JURISDICTION IN WHICH SUCH OFFERING MAY NOT LAWFULLY
BE MADE.
 
NOT FDIC INSURED
<PAGE>   259

                               - California
                                 Intermediate
                                 Tax-Free Bond Fund



                               Prospectus


                               Retail Shares

                               March 28, 1997





84825-B(3/97)           [LOGO] HIGHMARK(SM)
                               FUNDS
<PAGE>   260
 
                                 HIGHMARK FUNDS
 
                   CALIFORNIA INTERMEDIATE TAX-FREE BOND FUND
 
  HighMark Funds ("HighMark") is an open-end, diversified, registered investment
company that offers a convenient means of investing in one or more
professionally managed portfolios of securities. This Prospectus relates to
HighMark's California Intermediate Tax-Free Bond Fund.
 
                                 RETAIL SHARES
 
  HighMark's Retail Shares are offered to investors who are not fiduciary
clients of Union Bank of California, N.A., and who are not otherwise eligible
for HighMark's Fiduciary Shares.
 
  This Prospectus sets forth concisely the information about HighMark and the
California Intermediate Tax-Free Bond Fund that a prospective investor should
know before investing. Investors are advised to read this Prospectus and retain
it for future reference. A Statement of Additional Information dated the same
date as this Prospectus has been filed with the Securities and Exchange
Commission and is available without charge by writing the Distributor, SEI
Financial Services Company, Oaks, Pennsylvania 19456, or by calling
1-800-433-6884. The Statement of Additional Information is incorporated into
this Prospectus by reference. This Prospectus relates only to the Retail Shares
of the California Intermediate Tax-Free Bond Fund. Interested persons who wish
to obtain a prospectus for the other Funds of HighMark may contact the
Distributor at the above address and telephone number.
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
HIGHMARK'S SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK, INCLUDING UNION BANK OF CALIFORNIA, N.A., BANK OF
TOKYO-MITSUBISHI, LIMITED OR ANY OF THEIR AFFILIATES OR CORRESPONDENTS.
HIGHMARK'S SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT INSURANCE
CORPORATION OR ANY OTHER GOVERNMENT AGENCY. INVESTMENT IN HIGHMARK INVOLVES
RISKS, INCLUDING POSSIBLE LOSS OF THE PRINCIPAL AMOUNT INVESTED.
 
March 28, 1997
Retail Shares
<PAGE>   261
 
                                    SUMMARY
 
HIGHMARK FUNDS ("HighMark") is an open-end, diversified, registered investment
company providing a convenient way to invest in professionally managed
portfolios of securities. The following provides basic information about the
Retail Shares of the HighMark California Intermediate Tax-Free Bond Fund (the
"California Intermediate Tax-Free Bond Fund" or the "Fund"). This summary is
qualified in its entirety by reference to the more detailed information provided
elsewhere in the Prospectus and in the Statement of Additional Information.
 
WHAT IS THE FUND'S INVESTMENT OBJECTIVE? The Fund seeks to provide high current
income that is exempt from federal and State of California income taxes. (See
"INVESTMENT OBJECTIVE")
 
WHAT ARE THE FUND'S PERMITTED INVESTMENTS? The Fund invests primarily in
investment grade or better bonds and notes issued by the State of California,
its agencies, instrumentalities and political sub-divisions, the income on which
is exempt from regular federal and State of California personal income taxes
("California Municipal Securities"). (See "INVESTMENT POLICIES")
 
WHAT ARE THE RISKS INVOLVED WITH AN INVESTMENT IN THE FUND? The investment
policies of the Fund entail certain risks and considerations of which an
investor should be aware. Shares of the Fund will fluctuate in value with the
value of the Fund's underlying portfolio securities. Values of fixed income
securities in which the Fund invests tend to vary inversely with interest rates,
and may be affected by other market and economic factors affecting the State of
California as well. (See "Risk Factors")
 
ARE MY INVESTMENTS INSURED? HighMark's Shares are not federally insured by the
FDIC or any other government agency. Any guarantee by the U.S. Government, its
agencies or any instrumentalities of the securities in which any Fund invests
guarantees only the payment of principal and interest on the guaranteed
security, and does not guarantee the total return or value of the security or
total return or value of Shares of that Fund.
 
WHO IS THE ADVISOR? Pacific Alliance Capital Management, a division of Union
Bank of California, N.A., serves as the Advisor to HighMark. (See "The Advisor")
 
WHO IS THE ADMINISTRATOR? SEI Fund Resources serves as the Administrator of
HighMark. (See "The Administrator")
 
WHO IS THE CUSTODIAN? Union Bank of California, N.A., (the "Bank") serves as the
custodian of HighMark's assets. (See "The Custodian")
 
WHO IS THE DISTRIBUTOR? SEI Financial Services Company acts as Distributor of
HighMark's Shares. (See "The Distributor")
 
HOW DO I PURCHASE AND REDEEM SHARES? Purchases and redemptions may be made
through the Distributor on days on which both the New York Stock Exchange and
the Federal Reserve wire system are open for business ("Business Days"). The
minimum initial investment is generally $1,000. A purchase order will be
effective if the Distributor receives an order prior to 1:00 p.m., Pacific time
(4:00 p.m., Eastern time). Purchase orders for Shares will be executed at a per
Share price equal to the asset value next determined after the purchase order
 
                                        2
<PAGE>   262
 
is effective (plus any applicable sales charge). Redemption orders must be
placed prior to 1:00 p.m., Pacific time (4:00 p.m., Eastern time) on any
Business Day for the order to be effective that day. (See "HOW TO PURCHASE
SHARES and REDEMPTION OF SHARES")
 
HOW ARE DIVIDENDS PAID? Substantially all of the net investment income
(exclusive of capital gains) of the Fund is distributed in the form of monthly
dividends to Shareholders of record. Any capital gain is distributed at least
annually. Distributions are paid in additional Shares unless the Shareholder
elects to take the payment in cash. (See "DIVIDENDS")
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
Summary...............................................................................     2
California Intermediate Tax-Free Bond Fund Fee Table..................................     5
Fund Description......................................................................     7
Investment Objective..................................................................     7
Investment Policies...................................................................     7
  California Municipal Securities.....................................................     8
General...............................................................................     9
  Money Market Instruments............................................................     9
  Illiquid and Restricted Securities..................................................     9
  Lending of Portfolio Securities.....................................................     9
  Other Investments...................................................................     9
  Risk Factors........................................................................    10
Investment Limitations................................................................    11
  Portfolio Turnover..................................................................    12
How to Purchase Shares................................................................    12
  How to Purchase By Mail.............................................................    13
  How to Purchase By Wire.............................................................    14
  How to Purchase through an Automatic Investment Plan ("AIP")........................    14
  How to Purchase Through Financial Institutions......................................    14
  Sales Charges.......................................................................    15
  Letter of Intent....................................................................    16
  Rights of Accumulation..............................................................    16
  Sales Charge Waivers................................................................    16
  Reductions for Qualified Groups.....................................................    18
Exchange Privileges...................................................................    18
Redemption of Shares..................................................................    20
  By Mail.............................................................................    20
  Telephone Transactions..............................................................    20
  Systematic Withdrawal Plan ("SWP")..................................................    21
  Other Information Regarding Redemptions.............................................    21
Dividends.............................................................................    22
</TABLE>
 
                                        3
<PAGE>   263
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                         --
<S>                                                                                     <C>
Taxes.................................................................................    22
  Federal Taxation....................................................................    22
  California Taxes....................................................................    24
Service Arrangements..................................................................    25
  The Advisor.........................................................................    25
  Administrator.......................................................................    26
  The Transfer Agent..................................................................    27
  Shareholder Service Plan............................................................    27
  Distributor.........................................................................    27
  The Distribution Plan...............................................................    28
  Banking Laws........................................................................    29
  Custodian...........................................................................    29
General Information...................................................................    30
  Description of HighMark & Its Shares................................................    30
  Performance Information.............................................................    30
  Miscellaneous.......................................................................    31
Description of Permitted Investments..................................................    32
</TABLE>
 
                                        4
<PAGE>   264
 
              CALIFORNIA INTERMEDIATE TAX-FREE BOND FUND FEE TABLE
 
<TABLE>
<CAPTION>
                                                                                                         CALIFORNIA
                                                                                                        INTERMEDIATE
                                                                                                          TAX-FREE
                                                                                                         BOND FUND
                                                                                                           RETAIL
                                                                                                           SHARES
                                                                                                        ------------
<S>                                                                                                     <C>
SHAREHOLDER TRANSACTION EXPENSES(A)
  Maximum Sales Load Imposed on Purchases (as a percentage of offering price).........................      3.00%
  Maximum Sales Load Imposed on Reinvested Dividends (as a percentage of offering price)..............         0%
  Deferred Sales Load (as a percentage of original purchase price or redemption proceeds, as
    applicable)(b)....................................................................................         0%
  Redemption Fees (as a percentage of amount redeemed, if applicable)(c)..............................         0%
  Exchange Fee(a).....................................................................................      $  0
ANNUAL OPERATING EXPENSES (as a percentage of net assets)
  Management Fees (after voluntary reduction)(d)......................................................      0.00%
  12b-1 Fees (after voluntary reductions)(e)..........................................................      0.00%
  Other Expenses (after voluntary reduction)(f).......................................................      0.22%
                                                                                                           -----
  Total Fund Operating Expenses (after voluntary reduction)(g)........................................      0.22%
                                                                                                           =====
</TABLE>
 
  EXAMPLE: You would pay the following expenses on a $1,000 investment, assuming
(1) 5% annual return and (2) redemption at the end of each time period.
 
<TABLE>
<CAPTION>
                                                                         3        5        10
                                                              1 YEAR   YEARS    YEARS     YEARS
                                                              ------   ------   ------   -------
<S>                                                           <C>      <C>      <C>      <C>
California Intermediate Tax-Free Bond Fund Retail Shares....   $ 32     $ 37     $ 42     $  57
</TABLE>
 
  The purpose of the tables above is to assist an investor in the California
Intermediate Tax-Free Bond Fund in understanding the various costs and expenses
that a Shareholder will bear directly or indirectly. For a more complete
discussion of the Fund's annual operating expenses, see SERVICE ARRANGEMENTS
below. THE FOREGOING EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST
OR FUTURE EXPENSES. ACTUAL EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN.
 
  Long-term shareholders of Retail Shares may pay more than the economic
equivalent of the maximum front-end sales charges otherwise permitted by rules
of the National Association of Securities Dealers, Inc.
- ---------------
 
(a) Certain entities (including Union Bank of California and its affiliates)
    making investments in the California Intermediate Tax-Free Bond Fund on
    behalf of their customers may charge customers fees for services provided in
    connection with the investment in, redemption of, and exchange of Shares.
    (See HOW TO PURCHASE SHARES, EXCHANGE PRIVILEGES, REDEMPTION OF SHARES, and
    SERVICE ARRANGEMENTS below)
 
(b) A Contingent Deferred Sales Charge of 1.00% will be assessed against the
    proceeds of any redemption request relating to Retail Shares of the Fund
    that were purchased without a sales charge in reliance upon the waiver
    accorded to purchases in the amount of $1 million or more, but only where
    such redemption request is made within one year of the date the Shares were
    purchased.
 
                                        5
<PAGE>   265
 
(c) A wire redemption charge is deducted from the amount of a wire redemption
    payment made at the request of a Shareholder. (See REDEMPTION OF SHARES
    below)
 
(d) Absent voluntary fee waivers, MANAGEMENT FEES would be 0.50% for the Retail
    Shares of the California Intermediate Tax-Free Bond Fund.
 
(e) As indicated under SERVICE ARRANGEMENTS--the Distribution Plan below, the
    Distributor may voluntarily reduce the 12b-1 fee. Absent voluntary fee
    waivers, 12b-1 fees would 0.25% for the Fund. The Distributor reserves the
    right to terminate its waiver at any time in its sole discretion.
 
(f) OTHER EXPENSES for the California Intermediate Tax-Free Bond Fund are based
    on that Fund's estimated expenses for the current fiscal year. Absent
    voluntary fee waivers, OTHER EXPENSES would be 0.74% for the Retail Shares
    of the California Intermediate Tax-Free Bond Fund.
 
(g) Absent voluntary fee waivers, TOTAL FUND OPERATING EXPENSES would be: 1.49%
    for the Retail Shares of the California Intermediate Tax-Free Bond Fund.
 
                                        6
<PAGE>   266
 
FUND
DESCRIPTION             HighMark Funds ("HighMark") is an open-end, diversified,
                      registered investment company that currently offers units
                      of beneficial interest ("Shares") in sixteen separate
                      investment portfolios ("Funds"). All of the Funds are
                      advised by Pacific Alliance Capital Management (the
                      "Advisor"), a division of Union Bank of California, N.A.
                      Shareholders may purchase Shares of selected Funds through
                      two separate classes (the "Retail" and "Fiduciary"
                      classes). These classes may have different sales charges
                      and other expenses, which may affect performance.
                      Information regarding HighMark's other Funds and other
                      classes is contained in separate prospectuses that may be
                      obtained from HighMark's Distributor, SEI Financial
                      Services Company, at Oaks, Pennsylvania 19456, or by
                      calling 1-800-433-6884.
 
                        For information concerning those investors who qualify
                      to purchase Retail Shares, sales charges and the operation
                      of HighMark's Distribution Plan, see HOW TO PURCHASE
                      SHARES and SERVICE ARRANGEMENTS below. (Retail Shares may
                      be hereinafter referred to as "Shares.")
 
INVESTMENT
OBJECTIVE               The California Intermediate Tax-Free Bond Fund seeks to
                      provide high current income that is exempt from federal
                      and State of California income taxes.
 
                        The investment objective and certain of the investment
                      limitations of the California Intermediate Tax-Free Bond
                      Fund may not be changed without a vote of the holders of a
                      majority of the outstanding Shares of the Fund (as defined
                      under GENERAL INFORMATION--Miscellaneous below). There can
                      be no assurance that the Fund will achieve its investment
                      objective.
 
INVESTMENT
POLICIES                Under normal market conditions, the Fund will invest
                      primarily in bonds and notes issued by the State of
                      California, its agencies, instrumentalities, and political
                      sub-divisions, the income on which is exempt from regular
                      federal and State of California personal income taxes
                      ("California Municipal Securities"). The Fund may also
                      invest in bonds and notes of other states, territories,
                      and possessions of the U.S. and their agencies,
                      authorities, instrumentalities and political sub-divisions
                      which are exempt from federal income taxes, and in shares
                      of other investment companies, specifically money market
                      funds, which have similar investment objectives.
 
                        Under normal market conditions, at least 80% of the
                      Fund's assets will be invested in bonds and notes rated
                      AAA, AA, A or BBB by Standard & Poor's Corporation
                      ("S&P"), Aaa, Aa, A or Baa by Moody's Investors Service
                      ("Moody's"), or AAA, AA, A or BBB by Fitch Investors
                      Service ("Fitch") or investment grade by a nationally
                      recognized rating agency or are deemed by the Advisor to
                      be of comparable quality at the time of purchase and which
                      pay interest that is not treated as a preference item for
                      purposes of the federal alternative minimum tax. In the
                      event that a security owned by the Fund is
 
                                        7
<PAGE>   267
 
                      downgraded below the stated ratings categories, the
                      Advisor will take appropriate action with regard to the
                      security.
 
                        Under California law, a mutual fund must have at least
                      50% of its total assets invested in California Municipal
                      Securities at the end of each quarter of its taxable year
                      in order to be eligible to pay California residents
                      dividends that are wholly or partially exempt from
                      California personal income taxes. Accordingly, the Fund
                      intends to maintain at least 65% of its assets in
                      California Municipal Securities and may invest up to 100%
                      of its assets in such securities.
 
                        The Fund has no restrictions on the maturity of
                      municipal securities in which it may invest. Under normal
                      market conditions, the dollar-weighted average portfolio
                      maturity of the Fund is expected to be from three to ten
                      years. Accordingly, the Fund seeks to invest in municipal
                      securities of such maturities which, in the judgment of
                      the Advisor, will provide a high level of current income
                      consistent with prudent investment, with consideration
                      given to market conditions.
 
                      California Municipal Securities
 
                        The two principal classifications of California
                      Municipal Securities are "general obligation" and
                      "revenue" bonds. General obligation bonds are secured by
                      the issuer's pledge of its full faith, credit, and taxing
                      power for the payment of principal and interest. Revenue
                      bonds are payable primarily from the revenues derived from
                      a particular facility or class of facilities or, in some
                      cases, from the proceeds of a special excise tax or other
                      specific revenue source. Private activity bonds (formerly
                      known as industrial revenue bonds) are generally revenue
                      bonds.
 
                        Certain California Municipal Securities are municipal
                      lease revenue obligations (or certificates of
                      participation or "COPs"), which typically provide that the
                      municipality has no obligation to make lease or
                      installment payments in future years unless money is
                      appropriated for such purpose. While the risk of non-
                      appropriation is inherent to COP financing, this risk is
                      mitigated by the Fund's policy to invest in COPs that are
                      rated in one of the four highest rating categories used by
                      Moody's, S&P, or Fitch.
 
                        California Municipal Securities also include so-called
                      Mello-Roos and assessment district bonds, which are
                      usually unrated instruments issued to finance the building
                      of roads and other public works and projects that are
                      primarily secured by real estate taxes levied on property
                      located in the local community. Most of these bonds do not
                      seek agency ratings because the issues are too small, and
                      in most cases, the purchase of these bonds is based upon
                      the Advisor's determination that it is suitable for the
                      Fund.
 
                                        8
<PAGE>   268
 
                        Certain of the obligations in which the Fund may invest
                      may be variable or floating rate instruments and may
                      involve a conditional or unconditional demand feature.
 
GENERAL               Money Market Instruments
 
                        When market conditions indicate a temporary "defensive"
                      investment strategy as determined by the Advisor, the Fund
                      may invest more than 20% of its total assets in municipal
                      obligations of other states or taxable money market
                      instruments including repurchase agreements. The Fund will
                      not be pursuing its investment objective to the extent
                      that a substantial portion of its assets are invested in
                      taxable money market instruments.
 
                      Illiquid and Restricted Securities
 
                        The Fund shall limit investment in illiquid securities
                      to 15% or less of its net assets. Generally, an "illiquid
                      security" is any security that cannot be disposed of
                      promptly and in the ordinary course of business at
                      approximately the amount at which the Fund has valued the
                      instrument. The absence of a trading market can make it
                      difficult to ascertain the market value of illiquid
                      securities. The Fund may purchase restricted securities
                      which have not been registered under the Securities Act of
                      1933 (e.g., Rule 144A Securities and Section 4(2)
                      commercial paper) subject to policies approved by the
                      Board of Trustees. See INVESTMENT RESTRICTIONS in the
                      Statement of Additional Information.
 
                      Lending of Portfolio Securities
 
                        In order to generate additional income, the Fund may
                      lend its portfolio securities to broker-dealers, banks or
                      other institutions. The Fund may lend portfolio securities
                      in an amount representing up to 33 1/3% of the value of
                      the Fund's total assets.
 
                      Other Investments
 
                        The Fund may enter into repurchase agreements and
                      reverse repurchase agreements.
 
                        The Fund may enter into forward commitments or purchase
                      securities on a "when-issued" basis. The Fund expects that
                      commitments by it to enter into forward commitments or
                      purchase when-issued securities will not exceed 25% of the
                      value of the Fund's total assets under normal market
                      conditions. The Fund does not intend to purchase
                      when-issued securities or forward commitments for
                      speculative or leveraging purposes but only for the
                      purpose of acquiring portfolio securities.
 
                                        9
<PAGE>   269
 
                        The Fund may invest up to 5% of its total assets in the
                      securities of any one registered investment company, but
                      may not own more than 3% of the securities of any one
                      registered investment company or invest more than 10% of
                      its assets in the securities of other registered
                      investment companies. In accordance with an exemptive
                      order issued to HighMark by the SEC, such other registered
                      investment company securities may include securities of a
                      money market fund of HighMark, and such companies may
                      include companies for which the Advisor or a Sub-Advisor
                      to a Fund of HighMark, or an affiliate of such Advisor or
                      Sub-Advisor serves as investment advisor, administrator or
                      distributor. Because other registered investment companies
                      employ an investment advisor, such investment by the Fund
                      may cause Shareholders to bear duplicative fees. The
                      Advisor will waive its fees attributable to the assets of
                      the investing Fund invested in a money market fund of
                      HighMark, and, to the extent required by applicable law,
                      the Advisor will waive its fees attributable to the assets
                      of the Fund invested in any investment company. Some Funds
                      are subject to additional restrictions on investment in
                      other investment companies. See "INVESTMENT RESTRICTIONS"
                      in the Statement of Additional Information.
 
                        The Fund may invest in futures and options on futures
                      for the purpose of achieving the Fund's objectives and for
                      adjusting portfolio duration. The Fund may invest in
                      futures and related options related options based on any
                      type of security or index traded on U.S. or foreign
                      exchanges or over the counter, as long as the underlying
                      security, or securities represented by an index, are
                      permitted investments of the Fund. The Fund may enter into
                      futures contracts and related options only to the extent
                      that obligations under such contracts or transactions
                      represent not more than 10% of the Fund's assets.
 
                        For further information, see "DESCRIPTION OF PERMITTED
                      INVESTMENTS."
 
                      Risk Factors
 
                        In addition to credit risk which relates to the ability
                      of an issuer to make payments of principal and interest,
                      all types of bonds are also subject to market risk. Market
                      risk relates to changes in a security's value as a result
                      of interest rate changes generally. An increase in
                      interest rates will generally reduce the value of the
                      investments in the Fund and a decline in interest rates
                      will generally increase the value of those investments.
                      Accordingly, the net asset value of the Fund's Shares will
                      vary as a result of changes in the value of the securities
                      in the Fund's portfolio. Therefore, an investment in the
                      Fund may decline in value, resulting in a loss of
                      principal. Because interest rates vary, it is impossible
                      to predict the income or yield of the Fund for any
                      particular period.
 
                                       10
<PAGE>   270
 
                        Changes by recognized rating agencies in the rating of
                      any fixed income security and in the ability of an issuer
                      to make payments of interest and principal also affect the
                      value of these investments. Changes in the value of fund
                      securities will not affect cash income derived from these
                      securities, but will affect the Fund's net asset value.
 
                        The ability of the State of California and its political
                      sub-divisions to generate revenue through real property
                      and other taxes and to increase spending has been
                      significantly restricted by various constitutional and
                      statutory amendments and voter-passed initiatives. Such
                      limitations could affect the ability of California state
                      and municipal issuers to pay interest or repay principal
                      on their obligations. In addition, during the first half
                      of the decade, California faced severe economic and fiscal
                      conditions and experienced recurring budget deficits that
                      caused it to deplete its available cash resources and to
                      become increasingly dependent upon external borrowings to
                      meet its cash needs.
 
                        The financial difficulties experienced by the State of
                      California and municipal issuers during the recession
                      resulted in the credit ratings of certain of their
                      obligations being downgraded significantly by the major
                      rating agencies.
 
                        Securities rated BBB by S&P or Fitch or Baa by Moody's
                      are considered investment grade, but are deemed by these
                      rating services to have some speculative characteristics,
                      and adverse economic conditions or other circumstances are
                      more likely to lead to a weakened capacity to make
                      principal and interest payments than is the case with
                      higher grade bonds.
 
INVESTMENT
LIMITATIONS             The Fund may not:
 
                        1. Purchase securities of any issuer (except securities
                      issued or guaranteed by the U.S. Government or its
                      agencies and instrumentalities and repurchase agreements
                      involving such securities) if as a result more than 5% of
                      the total assets of the Fund would be invested in the
                      securities of such issuer provided, however, that the Fund
                      may invest up to 25% of its total assets without regard to
                      this restriction as permitted by applicable law.
 
                        2. Purchase any securities which would cause more than
                      25% of the total assets of the Fund to be invested in the
                      securities of one or more issuers conducting their
                      principal business activities in the same industry,
                      provided that this limitation does not apply to
                      investments in the obligations issued or guaranteed by the
                      U.S. Government or its agencies and instrumentalities and
                      repurchase agreements involving such securities, and
                      provided further, that utilities as a group will not be
                      considered to be one industry, and wholly-owned
                      subsidiaries organized to finance the operations of their
                      parent companies will be considered to be in the same
                      industries as their parent companies.
 
                                       11
<PAGE>   271
 
                        3. Make loans, except that the Fund may (a) purchase or
                      hold debt instruments in accordance with its investment
                      objective and policies; (b) enter into repurchase
                      agreements; and (c) lend securities.
 
                        The foregoing percentages will apply at the time of the
                      purchase of a security. The investment limitations listed
                      above are fundamental policies the substance of which may
                      not be changed without a vote of a majority of the
                      outstanding Shares of the Fund. Additional fundamental and
                      non-fundamental investment limitations are set forth in
                      the Statement of Additional Information.
 
                      Portfolio Turnover
 
                        The Fund's portfolio turnover rate will not be a factor
                      preventing a sale or purchase when the Advisor believes
                      investment considerations warrant. The Fund's portfolio
                      turnover rate may vary greatly from year to year as well
                      as within a particular year. High portfolio turnover rates
                      generally will result in correspondingly higher brokerage
                      and other transactions costs to the Fund and could involve
                      the realization of capital gains that would be taxable
                      when distributed to Shareholders of the Fund. See FEDERAL
                      TAXATION.
 
HOW TO
PURCHASE
SHARES                  As noted above, the Fund is divided into two classes of
                      Shares, Retail and Fiduciary. Retail Shares may be
                      purchased at net asset value plus a sales charge. For a
                      description of investors who qualify to purchase Fiduciary
                      Shares, see the Fiduciary Shares prospectus of the
                      California Intermediate Tax-Free Bond Fund. HighMark's
                      Retail Shares are offered to investors who are not
                      fiduciary clients of Union Bank of California, N.A., and
                      who are not otherwise eligible for HighMark's Fiduciary
                      Class.
 
                        Retail Shares are sold on a continuous basis by
                      HighMark's Distributor, SEI Financial Services Company.
                      The principal office of the Distributor is Oaks,
                      Pennsylvania 19456. If you wish to purchase Shares, you
                      may contact your investment professional or telephone
                      HighMark at 1-800-433-6884.
 
                        The minimum initial investment is generally $1,000 and
                      the minimum subsequent investment is generally only $100.
                      For present and retired directors, officers, and employees
                      (and their spouses and children under the age of 21) of
                      Union Bank of California, SEI Financial Services Company
                      and their affiliates, the minimum initial investment is
                      $250 and the minimum subsequent investment is $50. The
                      Fund's initial and subsequent minimum purchase amounts may
                      be waived if purchases are made in connection with
                      Individual Retirement Accounts, Keoghs, payroll deduction
                      plans, or 401(k) or similar plans. Purchases and
                      redemption of Shares of the Fund may be made on days on
                      which both the New York Stock Exchange and the Federal
                      Reserve wire system are open for business ("Business
                      Days").
 
                                       12
<PAGE>   272
 
                        Purchase orders for Shares will be executed at a per
                      Share price equal to the net asset value next determined
                      after the receipt of the purchase order by the Distributor
                      (plus any applicable sales charge). The net asset value
                      per Share of the Fund is determined by dividing the total
                      market value of the Fund's investments and other assets,
                      less any liabilities, by the total number of outstanding
                      Shares of the Fund. Net asset value per Share is
                      determined daily as of 1:00 p.m., Pacific time (4:00 p.m.,
                      Eastern time), on any Business Day. Purchases will be made
                      in full and fractional Shares of HighMark calculated to
                      three decimal places. HighMark reserves the right to
                      reject a purchase order when the Distributor determines
                      that it is not in the best interest of HighMark and/or its
                      Shareholders to accept such order.
 
                        The securities in the Fund will be valued at market
                      value. If market quotations are not available, the
                      securities will be valued by a method that HighMark's
                      Board of Trustees believes accurately reflects fair value.
                      For further information about valuation of investments in
                      the California Intermediate Tax-Free Bond Fund, see the
                      Statement of Additional Information.
 
                        Shares of the Fund are offered only to residents of
                      states in which the Shares are eligible for purchase.
 
                      How to Purchase By Mail
 
                        You may purchase Shares of the California Intermediate
                      Tax-Free Bond Fund by completing and signing an Account
                      Application form and mailing it, along with a check (or
                      other negotiable bank instrument or money order) payable
                      to "HighMark Funds (Fund Name)," to the transfer agent at
                      P.O. Box 8416, Boston, Massachusetts 02266-8416. All
                      purchases made by check should be in U.S. dollars and made
                      payable to "HighMark Funds (Fund Name)." Third party
                      checks, credit card checks or cash will not be accepted.
                      You may purchase more Shares at any time by mailing
                      payment also to the transfer agent at the above address.
                      Orders placed by mail will be executed on receipt of your
                      payment. If your check does not clear, your purchase will
                      be canceled and you could be liable for any losses or fees
                      incurred.
 
                        You may obtain Account Application Forms for the
                      California Intermediate Tax-Free Bond Fund by calling the
                      Distributor at 1-800-433-6884.
 
                                       13
<PAGE>   273
 
                      How to Purchase By Wire
 
                        You may purchase Shares of the California Intermediate
                      Tax-Free Bond Fund by wiring Federal funds, provided that
                      your Account Application has been previously received. You
                      must wire funds to the transfer agent and the wire
                      instructions must include your account number. You must
                      call the transfer agent at 1-800-433-6884 before wiring
                      any funds. An order to purchase Shares by Federal funds
                      wire will be deemed to have been received by a Fund on the
                      Business Day of the wire; provided that the Shareholder
                      wires funds to the transfer agent prior to 1:00 p.m.,
                      Pacific time (4:00 p.m., Eastern time). If the transfer
                      agent does not receive the wire by 1:00 p.m., Pacific time
                      (4:00 p.m., Eastern time), the order will be executed on
                      the next Business Day.
 
                      How to Purchase Through an Automatic Investment Plan
                      ("AIP")
 
                        You may arrange for periodic additional investments in
                      the California Intermediate Tax-Free Bond Fund through
                      automatic deductions by Automated Clearing House ("ACH")
                      from a checking account by completing this section in the
                      Account Application form. The minimum pre-authorized
                      investment amount is $100 per month. The AIP is available
                      only for additional investments to an existing account.
 
                      How to Purchase Through Financial Institutions
 
                        Shares of the Fund may be purchased through financial
                      institutions, including the Advisor, that provide
                      distribution assistance or Shareholder services. Shares
                      purchased by persons ("Customers") through financial
                      institutions may be held of record by the financial
                      institution. Financial institutions may impose an earlier
                      cut-off time for receipt of purchase orders directed
                      through them to allow for processing and transmittal of
                      these orders to the transfer agent for effectiveness the
                      same day. Customers should contact their financial
                      institution for information as to that institution's
                      procedures for transmitting purchase, exchange or
                      redemption orders to HighMark.
 
                        Customers who desire to transfer the registration of
                      Shares beneficially owned by them but held of record by a
                      financial institution should contact the institution to
                      accomplish such change.
 
                        Depending upon the terms of a particular Customer
                      account, a financial institution may charge a Customer
                      account fees. Information concerning these services and
                      any charges will be provided to the Customer by the
                      financial institution.
 
                                       14
<PAGE>   274
 
                      Sales Charges
 
                        The following table shows the regular sales charge on
                      Retail Shares to a "single purchaser" (defined below)
                      together with the dealer discount paid to dealers and the
                      agency commission paid to brokers (collectively the
                      "commission"):
 
<TABLE>
<CAPTION>
                                                                     SALES CHARGE AS      COMMISSION AS
                                              SALES CHARGE AS A        APPROPRIATE        PERCENTAGE OF
                                                PERCENTAGE OF       PERCENTAGE OF NET       OFFERING
                       AMOUNT OF PURCHASE      OFFERING PRICE        AMOUNT INVESTED          PRICE
                      --------------------    -----------------     -----------------     -------------
                      <S>                     <C>                   <C>                   <C>
                      0-$24,999...........           3.00%                 3.09%               2.70%
                      $25,000-$49,000.....           2.50%                 2.56%               2.25%
                      $50,000-$99,000.....           2.00%                 2.04%               1.80%
                      $100,000-$249,999...           1.50%                 1.52%               1.35%
                      $250,000-$999,999...           1.00%                 1.01%               0.90%
                      $1,000,000 and Over.           0.00%*                0.00%               0.00%
</TABLE>
 
                       --------------------------------------
 
                       * A contingent deferred sales charge of 1.00% will be
                         assessed against any proceeds of any redemption of such
                         Retail Shares prior to one year from date of purchase.
 
                        The commissions shown in the table apply to sales
                      through authorized dealers and brokers. Under certain
                      circumstances, the Distributor may use its own funds to
                      compensate financial institutions and intermediaries in
                      amounts that are additional to the commissions shown
                      above. In addition, the Distributor may, from time to time
                      and at its own expense, provide promotional incentives in
                      the form of cash or other compensation to certain
                      financial institutions and intermediaries whose registered
                      representatives have sold or are expected to sell
                      significant amounts of the Retail Shares of the Fund. Such
                      other compensation may take the form of payments for
                      travel expenses, including lodging, incurred in connection
                      with trips taken by qualifying registered representatives
                      to places within or without the United States. Under
                      certain circumstances, commissions up to the amount of the
                      entire sales charge may be reallowed to dealers or
                      brokers, who might then be deemed to be "underwriters"
                      under the Securities Act of 1933. Commission rates may
                      vary among the Funds.
 
                        In calculating the sales charge rates applicable to
                      current purchases of the Fund's Shares, a "single
                      purchaser" is entitled to cumulate current purchases with
                      the net purchase of previously purchased Shares of the
                      Fund and other of HighMark's funds (the "Eligible Funds")
                      which are sold subject to a comparable sales charge.
 
                        The term "single purchaser" refers to (i) an individual,
                      (ii) an individual and spouse purchasing Shares of the
                      Fund for their own account or for trust or custodial
                      accounts for their minor children, or (iii) a fiduciary
                      purchasing for any
 
                                       15
<PAGE>   275
 
                      one trust, estate or fiduciary account including employee
                      benefit plans created under Sections 401, 403(b) or 457 of
                      the Internal Revenue Code of 1986, as amended (the
                      "Code"), including related plans of the same employer. To
                      be entitled to a reduced sales charge based upon Shares
                      already owned, the investor must ask the Distributor for
                      such entitlement at the time of purchase and provide the
                      account number(s) of the investor, the investor and
                      spouse, and their minor children, and give the age of such
                      children. The Fund may amend or terminate this right of
                      accumulation at any time as to subsequent purchases.
 
                      Letter of Intent
 
                        By initially investing at least $1,000 and submitting a
                      Letter of Intent (the "Letter") to the Distributor, a
                      "single purchaser" may purchase Shares of the Fund and the
                      other Eligible Funds during a 13-month period at the
                      reduced sales charge rates applicable to the aggregate
                      amount of the intended purchases stated in the Letter. The
                      Letter may apply to purchases made up to 90 days before
                      the date of the Letter. To receive credit for such prior
                      purchases and later purchases benefitting from the Letter,
                      the Shareholder must notify the transfer agent at the time
                      the Letter is submitted that there are prior purchases
                      that may apply, and, at the time of later purchases,
                      notify the transfer agent that such purchases are
                      applicable under the Letter.
 
                      Rights of Accumulation
 
                        In calculating the sales charge rates applicable to
                      current purchases of Retail Shares, a "single purchaser"
                      is entitled to cumulate current purchases with the current
                      market value of previously purchased Retail Shares of the
                      Fund sold subject to a comparable sales charge.
 
                        To exercise your right of accumulation based upon Shares
                      you already own, you must ask the Distributor for this
                      reduced sales charge at the time of your additional
                      purchase and provide the account number(s) of the
                      investor, as applicable, the investor and spouse, and
                      their minor children. The Fund may amend or terminate this
                      right of accumulation at any time as to subsequent
                      purchases.
 
                      Sales Charge Waivers
 
                        The following categories of investors may purchase
                      Retail Shares of the Fund with no sales charge in the
                      manner described below (which may be changed or eliminated
                      at any time by the Distributor):
 
                        (1) Existing holders of Retail Shares of the Fund upon
                      the reinvestment of dividend and capital gain
                      distributions on those Shares;
 
                                       16
<PAGE>   276
 
                        (2) Investment companies advised by Pacific Alliance
                      Capital Management or distributed by SEI Financial
                      Services Company or its affiliates placing orders on each
                      entity's behalf;
 
                        (3) State and local governments;
 
                        (4) Individuals who have received distributions from
                      employee benefit trust accounts administered by Union Bank
                      of California who are rolling over such distributions into
                      an individual retirement account for which the Bank serves
                      as trustee or custodian;
 
                        (5) Individuals who purchase Shares with proceeds from a
                      required minimum distribution at age 70 1/2 from their
                      employee benefit qualified plan or an individual
                      retirement account administered by Union Bank of
                      California;
 
                        (6) Individuals who purchase Shares with proceeds
                      received in connection with a distribution paid from a
                      Union Bank of California trust or agency account;
 
                        (7) Investment advisors or financial planners regulated
                      by a federal or state governmental authority who are
                      purchasing Shares for their own account or for an account
                      for which they are authorized to make investment decisions
                      (i.e., a discretionary account) and who charge a
                      management, consulting or other fee for their services;
                      and clients of such investment advisors or financial
                      planners who place trades for their own accounts if the
                      accounts are linked to the master account of such
                      investment advisor or financial planner on the books and
                      records of a broker or agent;
 
                        (8) Investors purchasing Shares with proceeds from a
                      redemption of Shares of another open-end investment
                      company (other than HighMark Funds) on which a sales
                      charge was paid if such redemption occurred within thirty
                      (30) days prior to the date of the purchase order.
                      Satisfactory evidence of the purchaser's eligibility must
                      be provided at the time of purchase (e.g., a confirmation
                      of the redemption);
 
                        (9) Brokers, dealers and agents who are purchasing for
                      their own account and who have a sales agreement with the
                      Distributor, and their employees (and their spouses and
                      children under the age of 21);
 
                        (10) Investors purchasing Shares on behalf of a
                      qualified prototype retirement plan (other than an IRA,
                      SEP-IRA or Keogh) sponsored by Union Bank of California;
 
                        (11) Purchasers of Retail Shares of the Growth Fund that
                      are sponsors of other investment companies that are unit
                      investment trusts for deposit by such sponsors into such
                      unit investment trusts, and to purchasers of Retail Shares
                      of
 
                                       17
<PAGE>   277
 
                      the Growth Fund that are holders of such unit investment
                      trusts that invest distributions from such investment
                      trusts in Retail Shares of the Growth Fund;
 
                        (12) Present and retired directors, officers, and
                      employees (and their spouses and children under the age of
                      21) of Union Bank of California, SEI Financial Services
                      Company or their affiliated companies; and
 
                        (13) Investors receiving Shares issued in plans of
                      reorganization, such as mergers, asset acquisitions, and
                      exchange offers, to which HighMark is a party.
 
                        With regard to categories 2 through 12 above, the
                      Distributor must be notified that the purchase qualifies
                      for a sales charge waiver at the time of purchase.
 
                      Reductions for Qualified Groups
 
                        Reductions in sales charges also apply to purchases by
                      individual members of a "qualified group." The reductions
                      are based on the aggregate dollar amount of Shares
                      purchased by all members of the qualified group. For
                      purposes of this paragraph, a qualified group consists of
                      a "company," as defined in the 1940 Act, which has been in
                      existence for more than six months and which has a primary
                      purpose other than acquiring Shares of the Fund at a
                      reduced sales charge, and the "related parties" of such
                      company. For purposes of this paragraph, a "related party"
                      of a company is (i) any individual or other company who
                      directly or indirectly owns, controls or has the power to
                      vote five percent or more of the outstanding voting
                      securities of such company; (ii) any other company of
                      which such company directly or indirectly owns, controls
                      or has the power to vote five percent or more of its
                      outstanding voting securities; (iii) any other company
                      under common control with such company; (iv) any executive
                      officer, director or partner of such company or of a
                      related party; and (v) any partnership of which such
                      company is a partner. Investors seeking to rely on their
                      membership in a qualified group to purchase Shares at a
                      reduced sales load must provide evidence satisfactory to
                      the transfer agent of the existence of a bona fide
                      qualified group and their membership therein.
 
                        All orders from a qualified group will have to be placed
                      through a single source and identified at the time of
                      purchase as originating from the same qualified group,
                      although such orders may be placed into more than one
                      discrete account that identifies HighMark.
 
EXCHANGE
PRIVILEGES              As indicated under GENERAL INFORMATION--Description of
                      HighMark & Its Shares, certain of HighMark's Funds issue
                      two classes of Shares (Retail Shares and Fiduciary
                      Shares); as of the date of this Prospectus, the
                      Distribution Plan and distribution fee payable thereunder
                      are applicable only to such Fund's Retail Shares. A
                      Shareholder's eligibility to exchange into a particular
                      class of Shares will be determined at the time of the
                      exchange. The Shareholder must
 
                                       18
<PAGE>   278
 
                      supply, at the time of the exchange, the necessary
                      information to permit confirmation of qualification.
 
                        Each Fund's Shares may be exchanged for Shares of the
                      class of the various other Funds of HighMark which the
                      Shareholder qualifies to purchase directly so long as the
                      Shareholder maintains the applicable minimum account
                      balance in each Fund in which he or she owns Shares and
                      satisfies the minimum initial and subsequent purchase
                      amounts of the Fund into which the Shares are exchanged.
                      Shareholders may exchange their Retail Shares for Retail
                      Shares of a Fund with the same or lower sales charge on
                      the basis of the relative net asset value of the Retail
                      Shares exchanged. Shareholders may exchange their Retail
                      Shares for Retail Shares of a Fund with a higher sales
                      charge by paying the difference between the two sales
                      charges. Shareholders may also exchange Retail Shares of a
                      money market fund for which no sales load was paid for
                      Retail Shares of the California Intermediate Tax-Free Bond
                      Fund. Under such circumstances, the cost of the acquired
                      Retail Shares will be the net asset value per share plus
                      the appropriate sales load. If Retail Shares of the money
                      market fund were acquired in a previous exchange involving
                      Shares of a non-money market HighMark Fund, then such
                      Shares of the money market fund may be exchanged for
                      Shares of the California Intermediate Tax-Free Bond Fund
                      without payment of any additional sales load within a
                      twelve month period. In order to receive a reduced sales
                      charge when exchanging into a Fund, the Shareholder must
                      notify HighMark that a sales charge was originally paid
                      and provide sufficient information to permit confirmation
                      of qualification.
 
                        Exchanges will be made on the basis of the relative net
                      asset values of the Shares exchanged plus any applicable
                      sales charge. Exchanges are subject to the terms and
                      conditions stated herein and the terms and conditions
                      stated in the respective prospectuses of the Funds.
 
                        Certain entities (including Participating Organizations
                      and Union Bank of California and its affiliates), however,
                      may charge customers a fee with respect to exchanges made
                      on the customer's behalf. Information about these charges,
                      if any, can be obtained by the entity effecting the
                      exchange and this Prospectus should be read in conjunction
                      with that information.
 
                        A Shareholder wishing to exchange Shares in the
                      California Intermediate Tax-Free Bond Fund may do so by
                      contacting the transfer agent at 1-800-433-6884. Exchanges
                      will be effected on any Business Day at the net asset
                      value of the Funds involved in the exchange next
                      determined after the exchange request is received by the
                      transfer agent.
 
                        An exchange is considered to be a sale of Shares for
                      federal income tax purposes on which a Shareholder may
                      realize a capital gain or loss. Exchange
 
                                       19
<PAGE>   279
 
                      privileges may be exercised only in those states where
                      Shares of such other Funds of HighMark may legally be
                      sold. HighMark may materially amend or terminate the
                      exchange privileges described herein upon sixty days'
                      notice.
 
REDEMPTION
OF SHARES               You may redeem your Shares of the California
                      Intermediate Tax-Free Bond Fund without charge on any
                      Business Day. There is presently a $15 charge for wiring
                      redemption proceeds to a Shareholder's designated account.
                      Shares may be redeemed by mail, by telephone or through a
                      pre-arranged systematic withdrawal plan. Investors who own
                      Shares held by a financial institution should contact that
                      institution for information on how to redeem Shares.
 
                      By Mail
 
                        A written request for redemption of Shares of the
                      California Intermediate Tax-Free Bond Fund must be
                      received by the transfer agent, P.O. Box 8416, Boston,
                      Massachusetts 02266-8416 in order to constitute a valid
                      redemption request.
 
                        If the redemption request exceeds $5,000, or if the
                      request directs the proceeds to be sent or wired to an
                      address different from that of record, the transfer agent
                      may require that the signature on the written redemption
                      request be guaranteed. You should be able to obtain a
                      signature guarantee from a bank, broker dealer, credit
                      union, securities exchange or association, clearing agency
                      or savings association. Notaries public cannot guarantee
                      signatures. The signature guarantee requirement will be
                      waived if all of the following conditions apply: (1) the
                      redemption is for not more than $5,000 worth of Shares,
                      (2) the redemption check is payable to the Shareholder(s)
                      of record, and (3) the redemption check is mailed to the
                      Shareholder(s) at his or her address of record.
 
                      Telephone Transactions
 
                        You may redeem your Shares of the California
                      Intermediate Tax-Free Bond Fund by calling the transfer
                      agent at 1-800-433-6884. Under most circumstances,
                      payments will be transmitted on the next Business Day
                      following receipt of a valid request for redemption. You
                      may have the proceeds mailed to your address or wired to a
                      commercial bank account previously designated on your
                      Account Application. There is no charge for having
                      redemption proceeds mailed to you, but there is a $15
                      charge for wiring redemption proceeds.
 
                        You may request a wire redemption for redemptions of
                      Shares of the California Intermediate Tax-Free Bond Fund
                      in excess of $500 by calling the transfer agent at
                      1-800-433-6884 who will deduct a wire charge of $15 from
                      the amount of the wire redemption. Shares cannot be
                      redeemed by Federal Reserve wire on Federal holidays
                      restricting wire transfers.
 
                                       20
<PAGE>   280
 
                        Neither the transfer agent nor HighMark will be
                      responsible for any loss, liability, cost or expense for
                      acting upon wire or telephone instructions that it
                      reasonably believes to be genuine. HighMark and the
                      transfer agent will each employ reasonable procedures to
                      confirm that instructions, communicated by telephone are
                      genuine. Such procedures may include taping of telephone
                      conversations.
 
                        If market conditions are extraordinarily active or other
                      extraordinary circumstances exist, and you experience
                      difficulties placing redemption orders by telephone, you
                      may consider placing your order by mail.
 
                      Systematic Withdrawal Plan ("SWP")
 
                        The California Intermediate Tax-Free Bond Fund offers a
                      Systematic Withdrawal Plan ("SWP"), which you may use to
                      receive regular distributions from your account. Upon
                      commencement of the SWP, your account must have a current
                      net asset value of $5,000 or more. You may elect to
                      receive automatic payments via check or ACH of $100 or
                      more on a monthly, quarterly, semi-annual or annual basis.
                      You may arrange to receive regular distributions from your
                      account via check or ACH by completing this section in the
                      Account Application form.
 
                        To participate in the SWP, you must have your dividends
                      automatically reinvested. You should realize that if your
                      automatic withdrawals exceed income dividends, your
                      invested principal in the account will be depleted. Thus,
                      depending on the frequency and amounts of the withdrawal
                      payments and/or any fluctuations in the net asset value
                      per Share, your original investment could be exhausted
                      entirely. You may change or cancel the SWP at any time on
                      written notice to the transfer agent. The transfer agent
                      may require that the signature on the written notice be
                      guaranteed.
 
                        It is generally not in your best interest to be
                      participating in the SWP at the same time that you are
                      purchasing additional Shares if you have to pay a sales
                      load in connection with such purchases.
 
                      Other Information Regarding Redemptions
 
                        Shareholders who desire to redeem Shares of HighMark
                      must place their redemption orders prior to 1:00 p.m.,
                      Pacific time (4:00 p.m., Eastern time), on any Business
                      Day for the order to be accepted on that Business Day. The
                      redemption price is the net asset value of the Fund next
                      determined after receipt by the Distributor of the
                      redemption order. Payment on redemption will be made as
                      promptly as possible and, in any event, within seven
                      calendar days after the redemption order is received. The
                      Fund reserves the right to make payment on redemptions in
                      securities rather than cash.
 
                                       21
<PAGE>   281
 
                        Payment to the Shareholders for Shares redeemed will be
                      made within seven days after the transfer agent receives
                      the valid redemption request. At various times, however,
                      the Fund may be requested to redeem Shares for which it
                      has not yet received good payment; collection of payment
                      may take ten or more days. In such circumstances, the
                      redemption request will be rejected by the Fund. Once the
                      Fund has received good payment for the Shares a
                      Shareholder may submit another request for redemption.
 
                        Due to the relatively high costs of handling small
                      investments, the Fund reserves the right to redeem your
                      Shares at net asset value if your account in the Fund has
                      a value of less than the minimum initial purchase amount.
                      Accordingly, if you purchase Shares of the Fund in only
                      the minimum investment amount, you may be subject to
                      involuntary redemption if you redeem any Shares. Before
                      the Fund exercises its right to redeem such Shares you
                      will be given notice that the value of the Shares in your
                      account is less than the minimum amount and will be
                      allowed 60 days to make an additional investment in the
                      Fund in an amount which will increase the value of the
                      account to at least the minimum amount.
 
DIVIDENDS               The net income of the California Intermediate Tax-Free
                      Bond Fund is declared and paid monthly as a dividend to
                      Shareholders of record at the close of business on the day
                      of declaration. Net realized capital gains, if any, are
                      distributed at least annually to Shareholders of record.
 
                        Shareholders will automatically receive all income
                      dividends and capital gains distributions in additional
                      full and fractional Shares of the Fund at net asset value
                      as of the date of declaration (which is also the
                      ex-dividend date), unless the Shareholder elects to
                      receive such dividends or distributions in cash.
                      Shareholders wishing to receive their dividends in cash
                      (or wishing to revoke a previously made election) must
                      notify the transfer agent at P.O. Box 8416, Boston, MA
                      02266-8416, and such election (or revocation thereof) will
                      become effective with respect to dividends and
                      distributions having record dates after notice has been
                      received. Dividends paid in additional Shares receive the
                      same tax treatment as dividends paid in cash.
 

TAXES                 Federal Taxation
 
                        The California Intermediate Tax-Free Bond Fund intends
                      to qualify for treatment as a "regulated investment
                      company" under the Internal Revenue Code of 1986, as
                      amended (the "Code"), and to distribute substantially all
                      of its net investment income and net realized capital
                      gains, if any, so that the Fund is not required to pay
                      federal taxes on these amounts.
 
                        Because all of the Fund's net investment income is
                      expected to be derived from interest, it is anticipated
                      that no part of any distribution will be eligible for the
 
                                       22
<PAGE>   282
 
                      federal dividends received deduction for corporations. The
                      Fund is not managed to generate any long-term capital
                      gains and, therefore, does not foresee paying any
                      significant "capital gains dividends" as described in the
                      Code.
 
                        Exempt-interest dividends from the Fund are excludable
                      from Shareholders' gross income for federal income tax
                      purposes. Such dividends may be taxable to Shareholders
                      under state or local law as ordinary income even though
                      all or a portion of the amounts may be derived from
                      interest on tax-exempt obligations which, if realized
                      directly, would be exempt from such taxes. Shareholders
                      are advised to consult a tax advisor with respect to
                      whether exempt-interest dividends retain the exclusion if
                      such Shareholder would be treated as a "substantial user"
                      or a "related person" to such user under the Code.
 
                        Under the Code, interest on indebtedness incurred or
                      continued by a Shareholder to purchase or carry Shares of
                      the Fund is not deductible for federal income tax purposes
                      to the extent the Fund distributes exempt-interest
                      dividends during the Shareholder's taxable year.
 
                        Under the Code, if a Shareholder sells a Share of the
                      Fund after holding it for six months or less, any loss on
                      the sale or exchange of such Share will be disallowed to
                      the extent of the amount of any exempt-interest dividends
                      that the Shareholder has received with respect to the
                      Share that is sold.
 
                        In addition, any loss (not already disallowed as
                      provided in the preceding sentence) realized upon a
                      taxable disposition of shares held for six months or less
                      will be treated as long-term, rather than short-term, to
                      the extent of any long-term capital gain distributions
                      received by the shareholder with respect to the shares.
 
                        The Fund may at times purchase California Municipal
                      Securities at a discount from the price at which they were
                      originally issued. For federal income tax purposes, some
                      or all of this market discount will be included in the
                      California Tax-Free Money Market Fund's ordinary income
                      and will be taxable to Shareholders as such when it is
                      distributed to them.
 
                        To the extent dividends paid to Shareholders are derived
                      from taxable income (for example, from interest on
                      certificates of deposit or repurchase agreements), or from
                      long-term or short-term capital gains, such dividends will
                      be subject to federal income tax, whether such dividends
                      are paid in the form of cash or additional Shares.
 
                        Under the Code, dividends attributable to interest on
                      certain private activity bonds issued after August 7, 1986
                      must be included in alternative minimum taxable income for
                      the purpose of determining liability (if any) for the
                      federal alternative minimum tax. In addition,
                      exempt-interest dividends will be included
 
                                       23
<PAGE>   283
 
                      in a corporation's "adjusted current earnings" for
                      purposes of the alternative minimum tax (except to the
                      extent derived from interest on certain private activity
                      bonds issued after August 7, 1986, which interest would
                      already be included in alternative minimum taxable income
                      as a specific item of tax preference). Shareholders of the
                      Fund receiving social security or railroad retirement
                      benefits may be taxed on a portion of those benefits as a
                      result of receiving tax-exempt income (including
                      exempt-interest dividends distributed by the Fund).
 
                        Prior to purchasing Shares of the California
                      Intermediate Tax-Free Bond Fund, the impact of dividends
                      or capital gain distributions that are expected to be
                      declared or have been declared, but not paid, should be
                      carefully considered. Dividends or capital gain
                      distributions received after a purchase of Shares are
                      subject to federal income taxes, although in some
                      circumstances, the dividends or distributions may be, as
                      an economic matter, a return of capital to the
                      Shareholder. A Shareholder should consult his or her
                      advisor for specific advice about the tax consequences to
                      the Shareholder of investing in the Fund.
 
                        Additional information regarding federal taxes is
                      contained in the Statement of Additional Information.
                      However, the foregoing and the material in the Statement
                      of Additional Information are only brief summaries of some
                      of the important tax considerations generally affecting
                      the Fund and its Shareholders. In addition, the foregoing
                      discussion and the federal tax information in the
                      Statement of Additional Information are based on tax laws
                      and regulations which are in effect as of the date of this
                      Prospectus; these laws and regulations may subsequently
                      change, and such changes could be retroactive.
 
                        Shareholders will be advised at least annually as to the
                      federal income tax status of distributions made during the
                      year.
 
                      California Taxes
 
                        The Fund intends to qualify to pay dividends to
                      Shareholders that are exempt from California personal
                      income tax ("California exempt-interest dividends"). The
                      Fund will qualify to pay California exempt-interest
                      dividends if (1) at the close of each quarter of the
                      Fund's taxable year, at least 50 percent of the value of
                      the Fund's total assets consists of obligations the
                      interest on which would be exempt from California personal
                      income tax if the obligations were held by an individual
                      ("California Tax Exempt Obligations") and (2) the Fund
                      continues to qualify as a regulated investment company.
 
                        If the Fund qualifies to pay California exempt-interest
                      dividends, dividends distributed to Shareholders will be
                      considered California exempt-interest dividends (1) if
                      they are designated as exempt-interest dividends by the
                      Fund in a written notice to Shareholders mailed within 60
                      days of the close of the Fund's
 
                                       24
<PAGE>   284
 
                      taxable year and (2) to the extent that they are derived
                      from the interest received by the Fund during the year on
                      California Tax Exempt Obligations (less related expenses).
                      If the aggregate dividends so designated exceed the amount
                      that may be treated as California exempt-interest
                      dividends, only that percentage of each dividend
                      distribution equal to the ratio of aggregate California
                      exempt-interest dividends to aggregate dividends so
                      designated will be treated as a California exempt-interest
                      dividend. The Fund will notify Shareholders of the amount
                      of California exempt-interest dividends each year.
 
                        Corporations subject to California franchise tax that
                      invest in the Fund generally will not be entitled to
                      exclude California exempt-interest dividends from income.
 
                        Dividend distributions that do not qualify for treatment
                      as California exempt-interest dividends will be taxable to
                      Shareholders at ordinary income tax rates for California
                      personal income tax purposes to the extent of the Fund's
                      earnings and profits.
 
                        Interest on indebtedness incurred or continued by a
                      Shareholder in connection with the purchase of Shares of
                      the Fund will not be deductible for California personal
                      income tax purposes if the Fund distributes California
                      exempt-interest dividends.
 
                        The foregoing is a general, abbreviated summary of
                      certain of the provisions of the California Revenue and
                      Taxation Code presently in effect as they directly govern
                      the taxation of Shareholders subject to California
                      personal income tax. These provisions are subject to
                      change by legislative or administrative action, and any
                      such change may be retroactive with respect to Fund
                      transactions. Shareholders are advised to consult with
                      their own tax advisors for more detailed information
                      concerning California tax matters.
 
SERVICE
ARRANGEMENTS          The Advisor
 
                        Pacific Alliance Capital Management, a division of Union
                      Bank of California, N.A., serves as the California
                      Intermediate Tax-Free Bond Fund's investment advisor.
                      Subject to the general supervision of HighMark's Board of
                      Trustees, the Advisor manages the Fund in accordance with
                      its investment objective and policies, makes decisions
                      with respect to and places orders for all purchases and
                      sales of the Fund's investment securities, and maintains
                      the Fund's records relating to such purchases and sales.
 
                        For the expenses assumed and services provided by the
                      Advisor as the Fund's investment advisor, Union Bank of
                      California receives a fee from the California Intermediate
                      Tax-Free Bond Fund, computed daily and paid monthly, at
                      the annual rate of fifty one-hundredths of one percent
                      (.50%) of the Fund's average
 
                                       25
<PAGE>   285
 
                      daily net assets. This fee may be higher than the advisory
                      fee paid by most mutual funds, although the Board of
                      Trustees believes it will be comparable to advisory fees
                      paid by many funds having similar objectives and policies.
                      Union Bank of California may from time to time agree to
                      voluntarily reduce its advisory fee. While there can be no
                      assurance that Union Bank of California will choose to
                      make such an agreement, any voluntary reductions in Union
                      Bank of California's advisory fee will lower the Fund's
                      expenses, and thus increase the Fund's yield and total
                      return, during the period such voluntary reductions are in
                      effect. As of the date of this Prospectus, the California
                      Intermediate Tax-Free Bond Fund had not yet commenced
                      operations in HighMark.
 
                        On April 1, 1996, The Bank of California, N.A.,
                      HighMark's then investment advisor, combined with Union
                      Bank and the resulting bank changed its name to Union Bank
                      of California, N.A. At the same time, the banks'
                      investment management divisions were combined. Each of
                      Union Bank and The Bank of California, N.A. (or their
                      predecessor banks) has been in banking since the early
                      1900's and, historically, each has had significant
                      investment functions within its trust and investment
                      division. UnionBanCal Corporation, the parent of Union
                      Bank of California, N.A., is a publicly held corporation,
                      but is principally held by The Bank of Tokyo-Mitsubishi,
                      Ltd. As of September 30, 1996, Union Bank of California
                      and its subsidiaries had approximately $28.7 billion in
                      commercial assets. Pacific Alliance Capital Management is
                      a division of Union Bank of California's Trust and
                      Investment Management Group, which, as of June 30, 1996,
                      had approximately $13.4 billion of assets under
                      management. The Advisor, with a team of approximately 45
                      stock and bond research analysts, portfolio managers and
                      traders, has been providing investment management services
                      to individuals, institutions and large corporations since
                      1917.
 
                        All investment decisions for the California Intermediate
                      Tax-Free Bond Fund are made by a team of investment
                      professionals, all of whom take an active part in the
                      decision making process. The team leader for the Fund is
                      Robert Bigelow. Mr. Bigelow has been with Union Bank of
                      California, and its predecessor, Union Bank since June
                      1994. Mr. Bigelow served as a portfolio manager at City
                      National Bank from January, 1986 to June, 1994.
 
                      Administrator
 
                        SEI Fund Resources (the "Administrator") and HighMark
                      are parties to an administration agreement (the
                      "Administration Agreement"). Under the terms of the
                      Administration Agreement, the Administrator provides
                      HighMark with certain management services, including all
                      necessary office space, equipment, personnel, and
                      facilities.
 
                                       26
<PAGE>   286
 
                        The Administrator is entitled to a fee, which is
                      calculated daily and paid monthly, at an annual rate of
                      .20% of the Fund's average daily net assets. The
                      Administrator may waive its fee or reimburse various
                      expenses to the extent necessary to limit the total
                      operating expenses of the Fund's Retail Shares. Any such
                      waiver is voluntary and may be terminated at any time in
                      the Administrator's sole discretion. Currently, the
                      Administrator has agreed to waive its fee to the rate of
                      0.15% of the average daily net assets of the Funds.
 
                        Pursuant to a separate agreement with the Administrator,
                      Union Bank of California, N.A. performs sub-administration
                      services on behalf of the Fund, for which it receives a
                      fee paid by the Administrator at the annual rate of up to
                      0.05% of the Fund's average daily net assets. Union Bank
                      of California has voluntarily agreed to reduce this fee to
                      0.00%, but reserves the right to terminate its waiver at
                      any time in its sole discretion. A description of the
                      services performed by Union Bank of California pursuant to
                      this Agreement is contained in the Statement of Additional
                      Information.
 
                      The Transfer Agent
 
                        State Street Bank and Trust Company serves as the
                      transfer agent, dividend disbursing agent, and as a
                      shareholder servicing agent for the Retail Shares of
                      HighMark, for which services it receives a fee.
 
                      Shareholder Service Plan
 
                        To support the provision of Shareholder services to both
                      classes of Shares, HighMark has adopted a Shareholder
                      Service Plan. A description of the services performed by
                      service providers pursuant to the Shareholder Service Plan
                      is contained in the Statement of Additional Information.
                      In consideration of services provided by any service
                      provider, which may include Union Bank of California,
                      N.A., Bank of Tokyo-Mitsubishi, Ltd., or their respective
                      affiliates, each Fund may pay a fee at the rate of up to
                      0.25% of its average daily net assets to such service
                      provider. The service provider may waive such fees at any
                      time. Any such waiver is voluntary and may be terminated
                      at any time. Currently, such fees are being waived to the
                      rate of 0.00% of average daily net assets.
 
                      Distributor
 
                        SEI Financial Services Company (the "Distributor") and
                      HighMark are parties to a distribution agreement
                      ("Distribution Agreement"). The Distribution Agreement is
                      renewable annually and may be terminated by the
                      Distributor, by a majority vote of the Disinterested
                      Trustees or by a majority vote of the outstanding
                      securities of HighMark upon not more than 60 days written
                      notice by either party, or upon assignment by the
                      Distributor.
 
                                       27
<PAGE>   287
 
                      The Distribution Plan
 
                        Pursuant to HighMark's Distribution Plan, the California
                      Intermediate Tax-Free Bond Fund pays the Distributor as
                      compensation for its services in connection with the
                      Distribution Plan a distribution fee, computed daily and
                      paid monthly, equal to twenty-five one-hundredths of one
                      percent (0.25%) of the average daily net assets
                      attributable to the Fund's Retail Shares. The Distributor
                      has agreed to waive its fee to the rate of 0.00% of the
                      Fund's average daily net assets.
 
                        The Distributor may use the distribution fee applicable
                      to the Fund's Retail Shares to provide distribution
                      assistance with respect to the sale of the Fund's Retail
                      Shares or to provide Shareholder services to the holders
                      of the Fund's Retail Shares. The Distributor may also use
                      the distribution fee (i) to pay financial institutions and
                      intermediaries (such as insurance companies and investment
                      counselors but not including banks and savings and loan
                      associations), broker-dealers, and the Distributor's
                      affiliates and subsidiaries compensation for services or
                      reimbursement of expenses incurred in connection with the
                      distribution of the Fund's Retail Shares to their
                      customers or (ii) to pay banks, savings and loan
                      associations, other financial institutions and
                      intermediaries, broker-dealers, and the Distributor's
                      affiliates and subsidiaries compensation for services or
                      reimbursement of expenses incurred in connection with the
                      provision of Shareholder services to their customers
                      owning the Fund's Retail Shares. All payments by the
                      Distributor for distribution assistance or Shareholder
                      services under the Distribution Plan will be made pursuant
                      to an agreement between the Distributor and such bank,
                      savings and loan association, other financial institution
                      or intermediary, broker-dealer, or affiliate or subsidiary
                      of the Distributor (a "Servicing Agreement"; banks,
                      savings and loan associations, other financial
                      institutions and intermediaries, broker-dealers, and the
                      Distributor's affiliates and subsidiaries that may enter
                      into a Servicing Agreement are hereinafter referred to
                      individually as a "Participating Organization"). A
                      Participating Organization may include Union Bank of
                      California, its subsidiaries and its affiliates.
 
                        Participating Organizations may charge customers fees in
                      connection with investments in the California Intermediate
                      Tax-Free Bond Fund on their customers' behalf. Such fees
                      would be in addition to any amounts the Participating
                      Organization may receive pursuant to its Servicing
                      Agreement. Under the terms of the Servicing Agreements,
                      Participating Organizations are required to provide their
                      customers with a schedule of fees charged directly to such
                      customers in connection with investments in the Fund.
                      Customers of Participating Organizations should read this
                      Prospectus in light of the terms governing their accounts
                      with the Participating Organization.
 
                                       28
<PAGE>   288
 
                        The distribution fee under the Distribution Plan will be
                      payable without regard to whether the amount of the fee is
                      more or less than the actual expenses incurred in a
                      particular year by the Distributor in connection with
                      distribution assistance or Shareholder services rendered
                      by the Distributor itself or incurred by the Distributor
                      pursuant to the Servicing Agreements entered into under
                      the Distribution Plan. The Distributor may from time to
                      time voluntarily reduce its distribution fee with respect
                      to the California Intermediate Tax-Free Bond Fund in
                      significant amounts for substantial periods of time
                      pursuant to an agreement with HighMark. While there can be
                      no assurance that the Distributor will choose to make such
                      an agreement, any voluntary reduction in the Distributor's
                      distribution fee will lower the California Intermediate
                      Tax-Free Bond Fund's expenses, and thus increase the
                      Fund's yield and total returns, during the period such
                      voluntary reductions are in effect.
 
                      Banking Laws
 
                        Union Bank of California believes that it may perform
                      the services for the Fund contemplated by its investment
                      advisory agreement with HighMark without a violation of
                      applicable banking laws and regulations. Union Bank of
                      California also believes that it may perform
                      sub-administration and sub-accounting services on behalf
                      of the Fund without a violation of applicable banking laws
                      and regulations. Future changes in federal or state
                      statutes and regulations relating to permissible
                      activities of banks or bank holding companies and their
                      subsidiaries and affiliates, as well as further judicial
                      or administrative decisions or interpretations of present
                      and future statutes and regulations, could change the
                      manner in which Union Bank of California or the Advisor
                      could continue to perform such services for the Fund. For
                      a further discussion of applicable banking laws and
                      regulations, see the Statement of Additional Information.
 
                      Custodian
 
                        Union Bank of California also serves as the custodian
                      and as a shareholder servicing agent for the California
                      Intermediate Tax-Free Bond Fund. The custodian holds cash
                      securities and other assets of HighMark as required by the
                      1940 Act.
 
                        Services performed by Union Bank of California, as the
                      Fund's shareholder servicing agent and custodian, as well
                      as the basis of remuneration for such services, are
                      described in the Statement of Additional Information.
 
                                       29
<PAGE>   289
 
GENERAL
INFORMATION           Description of HighMark & Its Shares
 
                        HighMark was organized as a Massachusetts business trust
                      on March 10, 1987, and consists of sixteen series of
                      Shares open for investment representing units of
                      beneficial interest in HighMark's Growth Fund, Income
                      Equity Fund, Balanced Fund, Value Momentum Fund, Blue Chip
                      Growth Fund, Emerging Growth Fund, International Equity
                      Fund, Bond Fund, Intermediate-Term Bond Fund, Government
                      Securities Fund, Convertible Securities Fund, California
                      Intermediate Tax-Free Bond Fund, Diversified Money Market
                      Fund, U.S. Government Obligations Money Market Fund, 100%
                      U.S. Treasury Obligations Money Market Fund, and
                      California Tax-Free Money Market Fund. As of the date
                      hereof, no Shares of the Value Momentum Fund, the Blue
                      Chip Growth Fund, the Emerging Growth Fund, the
                      International Equity Fund, the Intermediate-Term Bond
                      Fund, the Convertible Securities Fund, the Government
                      Securities Fund, and the California Intermediate Tax-Free
                      Bond Fund, had been offered for sale in HighMark. Shares
                      of each Fund are freely transferable, are entitled to
                      distributions from the assets of the Fund as declared by
                      the Board of Trustees, and, if HighMark were liquidated,
                      would receive a pro rata share of the net assets
                      attributable to that Fund. Shares are without par value.
 
                        As noted above, pursuant to a Multiple Class Plan on
                      file with the Securities and Exchange Commission
                      permitting the issuance and sale of two classes of Shares
                      in selected Funds, Shares of such Funds have been divided
                      into two classes, designated Retail Shares and Fiduciary
                      Shares. For information regarding the Fiduciary Shares of
                      the California Intermediate Tax-Free Bond Fund, interested
                      persons may contact the Distributor for a prospectus at
                      1-800-433-6884.
 
                      Performance Information
 
                        From time to time, HighMark may advertise the aggregate
                      total return, average annual total return, yield and
                      distribution rate with respect to the Retail Shares of the
                      California Intermediate Tax-Free Bond Fund. Performance
                      information is computed separately for the Fund's Retail
                      and Fiduciary Shares in accordance with the formulas
                      described below.
 
                        The aggregate total return and average annual total
                      return of the California Intermediate Tax-Free Bond Fund
                      may be quoted for the life of the Fund and for ten-year,
                      five-year and one-year periods, in each case through the
                      most recent calendar quarter. Aggregate total return is
                      determined by calculating the change in the value of a
                      hypothetical $1,000 investment in the Fund over the
                      applicable period that would equate the initial amount
                      invested to the ending redeemable value of the investment.
                      The ending redeemable value includes dividends and capital
                      gain distributions reinvested at net asset value. Average
                      annual total return
 
                                       30
<PAGE>   290
 
                      is calculated by annualizing the Fund's aggregate total
                      return over the relevant number of years. The resulting
                      percentage indicates the average positive or negative
                      investment results that an investor in the Fund would have
                      experienced on an annual basis from changes in Share price
                      and reinvestment of dividends and capital gain
                      distributions.
 
                        The yield of the Fund is determined by annualizing the
                      net investment income per Share of the Fund during a
                      specified thirty-day period and dividing that amount by
                      the per Share public offering price of the Fund on the
                      last day of the period.
 
                        The distribution rate of the Fund is determined by
                      dividing the income and capital gains distributions, or
                      where indicated the income distributions alone, on a Share
                      of the Fund over a twelve-month period by the per Share
                      public offering price of the Fund on the last day of the
                      period.
 
                        Each Fund may periodically compare its performance to
                      the performance of other mutual funds tracked by mutual
                      fund rating services (such as Lipper Analytical),
                      financial and business publications and periodicals; broad
                      groups of comparable mutual funds; unmanaged indices which
                      may assume investment of dividends but generally do not
                      reflect deductions for administrative and management
                      costs; or other investment alternatives. The Fund may
                      advertise performance that includes results from periods
                      in which the Fund's assets were managed in a
                      non-registered predecessor vehicle.
 
                        All performance information presented for the Fund is
                      based on past performance and does not predict future
                      performance.
 
                      Miscellaneous
 
                        Shareholders will be sent unaudited semi-annual reports
                      and annual reports audited by independent public
                      accountants.
 
                        Shareholders are entitled to one vote for each Share
                      held in the Fund as determined on the record date for any
                      action requiring a vote by the Shareholders, and a
                      proportionate fractional vote for each fractional Share
                      held. Shareholders of HighMark will vote in the aggregate
                      and not by series or class except (i) as otherwise
                      expressly required by law or when HighMark's Board of
                      Trustees determines that the matter to be voted upon
                      affects only the interests of the Shareholders of a
                      particular series or particular class, and (ii) only
                      Retail Shares will be entitled to vote on matters
                      submitted to a Shareholder vote relating to the
                      Distribution Plan. HighMark is not required to hold
                      regular annual meetings of Shareholders, but may hold
                      special meetings from time to time.
 
                        HighMark's Trustees are elected by Shareholders, except
                      that vacancies may be filled by vote of the Board of
                      Trustees. Trustees may be removed by the Board
 
                                       31
<PAGE>   291
 
                      of Trustees, or by Shareholders at a meeting called for
                      such purpose. For information about how Shareholders may
                      call such a meeting and communicate with other
                      Shareholders for that purpose, see ADDITIONAL
                      INFORMATION--Miscellaneous in the Statement of Additional
                      Information.
 
                        Inquiries may be directed in writing to SEI Financial
                      Services Company,Oaks, Pennsylvania 19456, or by calling
                      toll free 1-800-433-6884.
 
DESCRIPTION OF
PERMITTED
INVESTMENTS             The following is a description of permitted investments
                      for the HighMark California Intermediate Tax-Free Bond
                      Fund.
 
                        ASSET-BACKED SECURITIES (NON-MORTGAGE)--Debt Instruments
                      secured by company receivables, truck and auto loans,
                      leases, and credit card receivables. Such securities are
                      generally issued as pass-through certificates, which
                      represent undivided fractional ownership interests in the
                      underlying pools of assets. Such securities also may be
                      debt instruments, which are also known as collateralized
                      obligations and are generally issued as the debt of a
                      special purpose entity, such as a trust, organized solely
                      for the purpose of owning such assets and issuing such
                      debt. The purchase of non-mortgage asset-backed securities
                      raises risk considerations peculiar to the financing of
                      the instruments underlying such securities. Asset-backed
                      securities entail prepayment risk, which may vary
                      depending on the type of asset, but is generally less than
                      the prepayment risk associated with mortgage-backed
                      securities.
 
                        Like mortgages underlying mortgage-backed securities,
                      underlying automobile sales contracts or credit card
                      receivables are subject to substantial prepayment risk,
                      which may reduce the overall return to certificate
                      holders. Nevertheless, principal prepayment rates tend not
                      to vary as much in response to changes in interest rates
                      and the short-term nature of the underlying car loans or
                      other receivables tend to dampen the impact of any change
                      in the prepayment level. Certificate holders may also
                      experience delays in payment on the certificates if the
                      full amounts due on underlying sales contracts or
                      receivables are not realized by the trust because of
                      unanticipated legal or administrative costs of enforcing
                      the contracts or because of depreciation or damage to the
                      collateral (usually automobiles) securing certain
                      contracts, or other factors. If consistent with their
                      investment objectives and policies, the Fund may invest in
                      other asset-backed securities that may be developed in the
                      future.
 
                        BANKERS' ACCEPTANCES -- Bills of exchange or time drafts
                      drawn on and accepted by commercial banks. They are used
                      by corporations to finance the shipment and storage of
                      goods and to furnish dollar exchange. Maturities are
                      generally six months or less.
 
                                       32
<PAGE>   292
 
                        CERTIFICATES OF DEPOSIT--Negotiable interest-bearing
                      instruments with a specific maturity. Certificates of
                      deposit are issued by banks and savings and loan
                      institutions in exchange for the deposit of funds and
                      normally can be traded in the secondary market prior to
                      maturity.
 
                        COMMERCIAL PAPER--Unsecured short-term promissory notes
                      issued by corporations and other entities. Maturities on
                      these issues vary from a few days to nine months. Purchase
                      of such instruments involves a risk of default by the
                      issuer.
 
                        DERIVATIVES--Instruments whose value is derived from an
                      underlying contract, index or security, or any combination
                      thereof, including futures, options (e.g., puts and
                      calls), options on futures, swap agreements, and some
                      mortgage-backed securities (CMOs, REMICs, IOs and POs).
                      See elsewhere in this "DESCRIPTION OF PERMITTED
                      INVESTMENTS" for discussions of these various instruments,
                      and see "INVESTMENT OBJECTIVES" and "INVESTMENT POLICIES"
                      for more information about any policies and limitations
                      applicable to their use.
 
                        FUTURES AND OPTIONS ON FUTURES--Some futures strategies,
                      including selling futures, buying puts and writing calls,
                      reduce a Fund's exposure to price fluctuations. Other
                      strategies, including buying futures, writing puts and
                      buying calls, tend to increase market exposure. Futures
                      and options may be combined with each other in order to
                      adjust the risk and return characteristics of the overall
                      portfolio.
 
                        Options and futures can be volatile instruments, and
                      involve certain risks that, if applied at an inappropriate
                      time, could negatively impact a Fund's return.
 
                        INVESTMENT GRADE BONDS--Interest-bearing or discounted
                      government or corporate securities that obligate the
                      issuer to pay the bondholder a specified sum of money,
                      usually at specific intervals, and to repay the principal
                      amount of the loan at maturity. Investment grade bonds are
                      those rated BBB or better by S&P or Baa or better by
                      Moody's or similarly rated by other NRSROs, or, if not
                      rated, determined to be of comparable quality by the
                      Advisor.
 
                        MONEY MARKET INSTRUMENTS--Short-term, debt instruments
                      or deposits and may include, for example, (i) commercial
                      paper rated within the highest rating category by a NRSRO
                      at the time of investment, or, if not rated, determined by
                      the Advisor to be of comparable quality; (ii) obligations
                      (certificates of deposit, time deposits, bank master
                      notes, and bankers' acceptances) of thrift institutions,
                      savings and loans, U.S. commercial banks (including
                      foreign branches of such banks), and U.S. and foreign
                      branches of foreign banks, provided that such institutions
                      (or, in the case of a branch, the parent institution) have
                      total assets of $1 billion or more as shown on their last
                      published financial statements at the time of investment;
                      (iii) short-term corporate obligations rated
 
                                       33
<PAGE>   293
 
                      within the three highest rating categories by a NRSRO
                      (e.g., at least A by S&P or A by Moody's) at the time of
                      investment, or, if not rated, determined by the Advisor to
                      be of comparable quality; (iv) general obligations issued
                      by the U.S. Government and backed by its full faith and
                      credit, and obligations issued or guaranteed as to
                      principal and interest by agencies or instrumentalities of
                      the U.S. Government (e.g., obligations issued by Farmers
                      Home Administration, Government National Mortgage
                      Association, Federal Farm Credit Bank and Federal Housing
                      Administration); (v) receipts, including TRs, TIGRs and
                      CATS; (vi) repurchase agreements involving such
                      obligations; (vii) loan participations issued by a bank in
                      the United States with assets exceeding $1 billion and for
                      which the underlying loan is issued by borrowers in whose
                      obligations the Fund may invest; (viii) money market funds
                      and (ix) foreign commercial paper.
 
                        Certain of the obligations in which a Fund may invest
                      may be variable or floating rate instruments, may involve
                      conditional or unconditional demand features and may
                      include variable amount master demand notes.
 
                        MORTGAGE-BACKED SECURITIES--Securities generally issued
                      or guaranteed by U.S. government agencies such as GNMA,
                      FNMA, or FHLMC. GNMA mortgage-backed certificates are
                      mortgage-backed securities of the modified pass-through
                      type, which means that both interest and principal
                      payments (including prepayments) are passed through
                      monthly to the holder of the certificate. Each GNMA
                      certificate evidences an interest in a specific pool of
                      mortgage loans insured by the Federal Housing
                      Administration or the Farmers Home Administration or
                      guaranteed by the Veterans Administration. FNMA, a
                      federally-chartered and stockholder-owned corporation,
                      issues pass-through certificates which are guaranteed as
                      to payment of principal and interest by FNMA. FHLMC, a
                      corporate instrumentality of the United States, issues
                      participation certificates which represent an interest in
                      mortgages held in FHLMC's portfolio. FHLMC guarantees the
                      timely payment of interest and the ultimate collection of
                      principal. Securities issued or guaranteed by FNMA and
                      FHLMC are not backed by the full faith and credit of the
                      United States. There can be no assurance that the U.S.
                      government would provide financial support to FNMA or
                      FHLMC if necessary in the future.
 
                        Although payments on certain mortgage-related securities
                      may be guaranteed by a third party or otherwise similarly
                      secured, the market value of such securities is not
                      secured and may fluctuate significantly because of changes
                      in interest rates and changes in prepayment levels. Thus,
                      for example, if a Fund purchases a mortgage-related
                      security at a premium, that portion may be lost if there
                      is a decline in the market value of the security whether
                      due to changes in interest rates or prepayments of the
                      underlying mortgage collateral. As with other
                      interest-bearing securities, the prices of
                      mortgage-related securities are inversely
 
                                       34
<PAGE>   294
 
                      affected by changes in interest rates. However, although
                      the value of a mortgage-related security may decline when
                      interest rates rise, the converse is not necessarily true
                      because in periods of declining interest rates the
                      mortgages underlying the securities are prone to
                      prepayment which results in amounts being available for
                      reinvestment which are likely to be invested at a lower
                      interest rate. For this and other reasons, the stated
                      maturity of a mortgage-related security may be shortened
                      by unscheduled prepayments on the underlying mortgages
                      and, accordingly, it is not possible to predict accurately
                      the security's return to a Fund. In addition, regular
                      payments received on mortgage-related securities include
                      both interest and principal. No assurance can be given as
                      to the return a Fund will receive when these amounts are
                      reinvested. As a consequence, mortgage-related securities
                      may be a less effective means of "locking in" interest
                      rates than other types of debt securities having the same
                      stated maturity, may have less potential for capital
                      appreciation and may be considered riskier investments as
                      a result.
 
                        Adjustable rate mortgage securities ("ARMS") are
                      pass-through certificates representing ownership interests
                      in a pool of adjustable rate mortgages and the resulting
                      cash flow from those mortgages. Unlike conventional debt
                      securities, which provide for periodic (usually
                      semi-annual) payments of interest and payments of
                      principal at maturity or on specified call dates, ARMs
                      provide for monthly payments based on a pro rata share of
                      both periodic interest and principal payments and
                      prepayments of principal on the underlying mortgage pool
                      (less GNMA's, FNMA's, or FHLMC's fees and any applicable
                      loan servicing fees).
 
                        Collateralized mortgage obligations ("CMOs") are bonds
                      generally issued by single purpose, stand-alone finance
                      subsidiaries or trusts established by financial
                      institutions, government agencies, investment banks, or
                      other similar institutions, and collateralized by pools of
                      mortgage loans. Payments of principal and interest on the
                      collateral mortgages are used to pay debt service on the
                      CMO. In a CMO, a series of bonds or certificates is issued
                      in multiple classes. Each class of CMOs, often referred to
                      as a "tranche," is issued at a specific coupon rate and
                      has a stated maturity or final distribution date. The
                      principal and interest payment on the underlying mortgages
                      may be allocated among the classes of CMOs in several
                      ways. Typically, payments of principal, including any
                      prepayments, on the underlying mortgages would be applied
                      to the classes in the order of their respective stated
                      maturities or final distribution dates, so that no payment
                      of principal will be made on CMOs of a class until all
                      CMOs of other classes having earlier stated maturities or
                      final distribution dates have been paid in full.
 
                        One or more classes of CMOs may have coupon rates that
                      reset periodically based on an index, such as the London
                      Interbank Offered Rate ("LIBOR"). Each Fund may purchase
                      fixed, adjustable, or "floating" rate CMOs that are
 
                                       35
<PAGE>   295
 
                      collateralized by fixed rate or adjustable rate mortgages
                      that are guaranteed as to payment of principal and
                      interest by an agency or instrumentality of the U.S.
                      government or are directly guaranteed as to payment of
                      principal and interest by the issuer, which guarantee is
                      collateralized by U.S. government securities or is
                      collateralized by privately issued fixed rate or
                      adjustable rate mortgages.
 
                        Securities such as zero-coupon obligations,
                      mortgage-backed and asset-backed securities, and
                      collateralized mortgage obligations ("CMOs") will have
                      greater price volatility then other fixed-income
                      obligations. Because declining interest rates may lead to
                      prepayment of underlying mortgages, automobile sales
                      contracts or credit card receivables, the prices of
                      mortgage-related and asset-backed securities may not rise
                      with a decline in interest rates. Mortgage-backed and
                      asset-backed securities and CMOs are extremely sensitive
                      to the rate of principal prepayment. Similarly, callable
                      corporate bonds also present risk of prepayment. During
                      periods of falling interest rates, securities that can be
                      called or prepaid may decline in value relative to similar
                      securities that are not subject to call or prepayment.
 
                        Real Estate Mortgage Investment Conduits ("REMICs") are
                      private entities formed for the purpose of holding a fixed
                      pool of mortgages secured by an interest in real property.
                      REMICs are similar to CMOs in that they issue multiple
                      classes of securities.
 
                        MUNICIPAL FORWARDS--Municipal Forwards are forward
                      commitments for the purchase of tax-exempt bonds with a
                      specified coupon to be delivered by an issuer at a future
                      date, typically exceeding 45 days but normally less than
                      one year after the commitment date. Municipal forwards are
                      normally used as a refunding mechanism for bonds that may
                      only be redeemed on a designated future date. As with
                      forward commitments and when-issued securities, municipal
                      forwards are subject to market fluctuations due to
                      changes, real or anticipated, in market interest rates
                      between the commitment date and the settlement date and
                      will have the effect of leveraging the Fund's assets.
                      Municipal forwards may be considered to be illiquid
                      investments. The Fund will maintain liquid, high-grade
                      securities in a segregated account in an amount at least
                      equal to the purchase price of the municipal forward.
 
                        MUNICIPAL SECURITIES--Municipal securities consist of
                      (i) debt obligations issued by or on behalf of public
                      authorities to obtain funds to be used for various public
                      facilities, for refunding outstanding obligations, for
                      general operating expenses and for lending such funds to
                      other public institutions and facilities, and (ii) certain
                      private activity and industrial development bonds issued
                      by or on behalf of public authorities to obtain funds to
                      provide for the construction, equipment, repair or
                      improvement of privately operated facilities. Municipal
                      notes include general obligation notes, tax anticipation
                      notes, revenue anticipation
 
                                       36
<PAGE>   296
 
                      notes, bond anticipation notes, certificates of
                      indebtedness, demand notes and construction loan notes.
                      Municipal bonds include general obligation bonds, revenue
                      or special obligation bonds, private activity and
                      industrial development bonds. General obligation bonds are
                      backed by the taxing power of the issuing municipality.
                      Revenue bonds are backed by the revenues of a project or
                      facility, tolls from a toll bridge, for example. The
                      payment of principal and interest on private activity and
                      industrial development bonds generally is dependent solely
                      on the ability of the facility's user to meet its
                      financial obligations and the pledge, if any, of real and
                      personal property so financed as security for such
                      payment.
 
                        PARTICIPATION INTERESTS--Participation interests are
                      interests in municipal securities from financial
                      institutions such as commercial and investment banks,
                      savings and loan associations and insurance companies.
                      These interests may take the form of participations,
                      beneficial interests in a trust, partnership interests or
                      any other form of indirect ownership that allows the Fund
                      to treat the income from the investment as exempt from
                      federal income tax. The Fund invests in these
                      participation interests in order to obtain credit
                      enhancement or demand features that would not be available
                      through direct ownership of the underlying municipal
                      securities.
 
                        RECEIPTS--Interests in separately traded interest and
                      principal component parts of U.S. Treasury obligations
                      that are issued by banks and brokerage firms and are
                      created by depositing Treasury notes and Treasury bonds
                      into a special account at a custodian bank. The custodian
                      holds the interest and principal payments for the benefit
                      of the registered owners of the certificates of such
                      receipts. The custodian arranges for the issuance of the
                      certificates or receipts evidencing ownership and
                      maintains the register. Receipts include "Treasury
                      Receipts" ("TR's"), "Treasury Investment Growth Receipts"
                      ("TIGR's"), and "Certificates of Accrual on Treasury
                      Securities" ("CATS"). TR's, TIGR's and CATS are sold as
                      zero coupon securities, which means that they are sold at
                      a substantial discount and redeemed at face value at their
                      maturity date without interim cash payments of interest or
                      principal. This discount is accreted over the life of the
                      security, and such accretion will constitute the income
                      earned on the security for both accounting and tax
                      purposes. Because of these features, such securities may
                      be subject to greater interest rate volatility than
                      interest-paying securities. See also "Federal Taxation."
 
                        REPURCHASE AGREEMENTS--Agreements whereby a Fund will
                      acquire securities from approved financial institutions or
                      registered broker-dealers that agree to repurchase the
                      securities at a mutually agreed-upon date and price. The
                      repurchase agreements entered into by the Funds will
                      provide that the underlying security at all times shall
                      have a value equal to 102% of the resale price stated in
                      the agreement. Repurchase agreements involving government
                      securities are not
 
                                       37
<PAGE>   297
 
                      subject to a Fund's fundamental investment limitation on
                      purchasing securities of any one issuer. If the seller
                      defaults on its repurchase obligation or becomes
                      insolvent, the Fund holding such obligations would suffer
                      a loss to the extent that either the proceeds from a sale
                      of the underlying portfolio securities were less than the
                      repurchase price or the Fund's disposition of the
                      securities was delayed pending court action. Securities
                      subject to repurchase agreements will be held by a
                      qualified custodian or in the Federal Reserve/Treasury
                      book-entry system. Repurchase agreements are considered to
                      be loans by a Fund under the Investment Company Act of
                      1940 (the "1940 Act").
 
                        REVERSE REPURCHASE AGREEMENTS--A Fund may borrow funds
                      for temporary purposes by entering into reverse repurchase
                      agreements, provided such action is consistent with the
                      Fund's investment objective and fundamental investment
                      restrictions; as a matter of non-fundamental policy, each
                      Fund intends to limit such investments to no more than 10%
                      of the value of its total assets. Pursuant to a reverse
                      repurchase agreement, a Fund will sell portfolio
                      securities to financial institutions such as banks or to
                      broker-dealers, and agree to repurchase the securities at
                      a mutually agreed-upon date and price. A Fund intends to
                      enter into reverse repurchase agreements only to avoid
                      otherwise selling securities during unfavorable market
                      conditions to meet redemptions. At the time a Fund enters
                      into a reverse repurchase agreement, it will place in a
                      segregated custodial account assets such as U.S.
                      Government securities or other liquid, high-quality debt
                      securities consistent with the Fund's investment objective
                      having a value equal to 102% of the repurchase price
                      (including accrued interest), and will subsequently
                      monitor the account to ensure that an equivalent value is
                      maintained. Reverse repurchase agreements involve the risk
                      that the market value of the securities sold by a Fund may
                      decline below the price at which a Fund is obligated to
                      repurchase the securities. Reverse repurchase agreements
                      are considered to be borrowings by a Fund under the 1940
                      Act.
 
                        RULE 144A SECURITIES--Rule 144A Securities are
                      securities that have not been registered under the
                      Securities Act of 1933, but which may be traded between
                      certain qualified institutional investors, including
                      investment companies. The absence of a secondary market
                      may affect the value of the Rule 144A Securities. The
                      Board of Trustees of the Group has established guidelines
                      and procedures to be utilized to determine the liquidity
                      of such securities.
 
                        SECURITIES ISSUED ON A FORWARD COMMITMENT BASIS OR
                      WHEN-ISSUED SECURITIES--Securities purchased for delivery
                      beyond the normal settlement date at a stated price and
                      yield and which thereby involve a risk that the yield
                      obtained in the transaction will be less than that
                      available in the market when delivery takes place. When a
                      Fund agrees to purchase when-issued securities or enter
                      into forward commitments, the Group's custodian will be
 
                                       38
<PAGE>   298
 
                      instructed to set aside cash or liquid portfolio
                      securities equal to the amount of the commitment in a
                      segregated account. A Fund will generally not pay for such
                      securities and no income will accrue on the securities
                      until they are received. These securities are recorded as
                      an asset and are subject to changes in value based upon
                      changes in the general level of interest rates. Therefore,
                      the purchase of securities on a "when-issued" basis or
                      forward commitments may increase the risk of fluctuations
                      in a Fund's net asset value.
 
                        SECURITIES LENDING--During the time portfolio securities
                      are on loan from a Fund, the borrower will pay the Fund
                      any dividends or interest paid on the securities. In
                      addition, loans will be subject to termination by the Fund
                      or the borrower at any time and, while a Fund will
                      generally not have the right to vote securities on loan,
                      it will terminate the loan and regain the right to vote if
                      that is considered important with respect to the
                      investment. While the lending of securities may subject a
                      Fund to certain risks, such as delays or an inability to
                      regain the securities in the event the borrower were to
                      default on its lending agreement or enter into bankruptcy,
                      a Fund will receive 100% collateral in the form of cash or
                      U.S. Government securities. This collateral will be valued
                      daily by the lending agent, with oversight by the Advisor,
                      and, should the market value of the loaned securities
                      increase, the borrower will be required to furnish
                      additional collateral to the Fund.
 
                        SECURITIES SUBJECT TO A PUT FEATURE--A "put" feature
                      permits a Fund to sell a fixed income security at a fixed
                      price prior to maturity. The underlying fixed income
                      securities subject to a put may be sold at any time at the
                      market rates. However, unless the put was an integral part
                      of the fixed income security as originally issued, it may
                      not be marketable or assignable. Generally, a premium is
                      paid for a put feature or a put feature is purchased
                      separately which results in a lower yield than would
                      otherwise be available for the same fixed income
                      securities.
 
                        TAX-EXEMPT COMMERCIAL PAPER--Commercial paper, which is
                      commercial paper issued by governments and political
                      subdivisions.
 
                        TIME DEPOSITS--Non-negotiable receipts issued by U.S. or
                      foreign banks in exchange for the deposit of funds. Like
                      certificates of deposit, they earn a specified rate of
                      interest over a definite period of time; however, they
                      cannot be traded in the secondary market. Time deposits
                      with a withdrawal penalty are considered to be illiquid
                      securities.
 
                        U.S. GOVERNMENT AGENCY SECURITIES--Certain Federal
                      agencies have been established as instrumentalities of the
                      U.S. Government to supervise and finance certain types of
                      activities. Issues of these agencies, while not direct
                      obligations of the U.S. Government, are either backed by
                      the full faith and credit
 
                                       39
<PAGE>   299
 
                      of the United States (e.g., GNMA securities) or supported
                      by the issuing agencies' right to borrow from the U.S.
                      Treasury. The issues of other agencies are supported only
                      by the credit of the instrumentality (e.g., FNMA
                      securities).
 
                        U.S. TREASURY OBLIGATIONS--Bills, notes, and bonds
                      issued by the U.S. Treasury, as well as separately traded
                      interest and principal component parts of such obligations
                      known as Separately Traded Registered Interest and
                      Principal Securities ("STRIPS") that are transferable
                      through the Federal book-entry system.
 
                        U.S. Government Securities generally do not involve the
                      credit risks associated with investments in other types of
                      fixed-income securities, although, as a result, the yields
                      available from U.S. Government Securities are generally
                      lower than the yields available from otherwise comparable
                      corporate fixed-income securities. Like other fixed-income
                      securities, however, the values of U.S. Government
                      Securities change as interest rates fluctuate.
                      Fluctuations in the value of portfolio securities will in
                      many cases not affect interest income on existing
                      portfolio securities, but will be reflected in the Fund's
                      net asset value. Because the magnitude of these
                      fluctuations will generally be greater at times when a
                      Fund's average maturity is longer, under certain market
                      conditions the Fund may invest in short-term investments
                      yielding lower current income rather than investing in
                      higher yielding longer-term securities.
 
                        VARIABLE AND FLOATING RATE INSTRUMENTS--obligations that
                      may carry variable or floating rates of interest, may
                      involve conditional or unconditional demand features and
                      may include variable amount master demand notes. The
                      interest rates on these securities may be reset daily,
                      weekly, quarterly or some other reset period, and may have
                      a floor or ceiling on interest rate changes. There is a
                      risk that the current interest rate on such obligations
                      may not accurately reflect existing market interest rates.
                      A demand instrument with a demand notice period exceeding
                      seven days may be considered illiquid if there is no
                      secondary market for such security.
 
                        WARRANTS--Securities that entitle the holder to buy a
                      proportionate amount of common stock at a specified price
                      for a limited or unlimited period of time. Warrants are
                      often freely transferable and are traded on major stock
                      exchanges.
 
                        YANKEE BONDS--Dollar denominated securities issued by
                      foreign-domiciled issuers that obligate the issuer to pay
                      the bondholder a specified sum of money, usually
                      semiannually, and to repay the principal amount of the
                      loan at maturity. Sovereign bonds are bonds issued by the
                      governments of foreign countries. Supranational bonds are
                      those issued by supranational entities, such as the World
                      Bank and European Investment Bank. Canadian bonds are
                      bonds issued by Canadian provinces.
 
                                       40
<PAGE>   300
 
                        ZERO-COUPON OBLIGATIONS--Non-income producing securities
                      evidencing ownership of future interest and principal
                      payments on bonds. These obligations pay no current
                      interest and are typically sold at prices greatly
                      discounted from par value. The return on a zero-coupon
                      obligation, when held to maturity, equals the difference
                      between the par value and the original purchase price.
 
                        For federal income tax purposes, the difference between
                      the par value and the original issue price (original issue
                      discount) is included in the income of a holder of a
                      zero-coupon obligation over the term of the obligation
                      even though the interest is not paid until maturity. The
                      amount included in income is determined under a constant
                      interest rate method. In addition, if an obligation is
                      purchased subsequent to its original issue, a holder such
                      as the Income Funds may elect to include market discount
                      in income currently on a ratable accrual method or a
                      constant interest rate method. Market discount is the
                      difference between the obligation's "adjusted issue price"
                      (the original issue price plus original issue discount
                      accrued to date) and the holder's purchase price. If no
                      such election is made, gain on the disposition of a market
                      discount obligation is treated as ordinary income (rather
                      than capital gain) to the extent it does not exceed the
                      accrued market discount.
 
                        Zero-coupon obligations have greater price volatility
                      than other fixed-income obligations of similar maturity
                      and such obligations will be purchased when the yield
                      spread, in light of the obligation's duration, is
                      considered advantageous.
 
                                       41
<PAGE>   301
 
              HighMark CALIFORNIA INTERMEDIATE TAX-FREE BOND FUND
                            INVESTMENT PORTFOLIO OF
                                 HighMark FUNDS
                   For further information (including current
                  yield, purchase and redemption information),
                              call 1-800-433-6884
 
INVESTMENT ADVISOR
Pacific Alliance Capital Management,
a division of Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
CUSTODIAN
Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
ADMINISTRATOR & DISTRIBUTOR
SEI Fund Resources and
SEI Financial Services Company
Oaks, Pennsylvania 19456
 
LEGAL COUNSEL
Ropes & Gray
One Franklin Square
1301 K Street, N.W., Suite 800 East
Washington, D.C. 20005
 
AUDITORS
Deloitte & Touche LLP
1700 Courthouse Plaza Northeast
Dayton, OH 45402
 
  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS IN CONNECTION WITH THE OFFERING
MADE BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR
REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY HIGHMARK OR
ITS DISTRIBUTOR. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFERING BY HIGHMARK OR
BY THE DISTRIBUTOR IN ANY JURISDICTION IN WHICH SUCH OFFERING MAY NOT LAWFULLY
BE MADE.
 
NOT FDIC INSURED
<PAGE>   302
                               - Balanced Fund



                               Prospectus


                               Retail Shares

                               March 28, 1997





84821-B(3/97)           [LOGO] HIGHMARK(SM)
                               FUNDS
<PAGE>   303
 
                                 HIGHMARK FUNDS
 
                                 BALANCED FUND
 
  HighMark Funds ("HighMark") is an open-end, diversified, registered investment
company that offers a convenient means of investing in one or more
professionally managed portfolios of securities. This Prospectus relates to
HighMark's Balanced Fund.
 
                                 RETAIL SHARES
 
  HighMark's Retail Shares are offered to investors who are not fiduciary
clients of Union Bank of California, N.A., and who are not otherwise eligible
for HighMark's Fiduciary Shares.
 
  This Prospectus sets forth concisely the information about HighMark and the
Balanced Fund that a prospective investor should know before investing.
Investors are advised to read this Prospectus and retain it for future
reference. A Statement of Additional Information dated the same date as this
Prospectus has been filed with the Securities and Exchange Commission and is
available without charge by writing the Distributor, SEI Financial Services
Company, Oaks, Pennsylvania 19456, or by calling 1-800-433-6884. The Statement
of Additional Information is incorporated into this Prospectus by reference.
This Prospectus relates only to the Retail Shares of the Balanced Fund.
Interested persons who wish to obtain a prospectus for the other Funds of
HighMark may contact the Distributor at the above address and telephone number.
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
HIGHMARK'S SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK, INCLUDING UNION BANK OF CALIFORNIA, N.A., BANK OF
TOKYO-MITSUBISHI, LIMITED OR ANY OF THEIR AFFILIATES OR CORRESPONDENTS.
HIGHMARK'S SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT INSURANCE
CORPORATION OR ANY OTHER GOVERNMENT AGENCY. INVESTMENT IN HIGHMARK INVOLVES
RISKS, INCLUDING POSSIBLE LOSS OF THE PRINCIPAL AMOUNT INVESTED.
 
March 28, 1997
Retail Shares
<PAGE>   304
 
                                    SUMMARY
 
HIGHMARK FUNDS ("HighMark") is an open-end, diversified, registered investment
company providing a convenient way to invest in professionally managed
portfolios of securities. The following provides basic information about the
Retail Shares of HighMark Balanced Fund (the "Balanced Fund" or the "Fund").
This summary is qualified in its entirety by reference to the more detailed
information provided elsewhere in the Prospectus and in the Statement of
Additional Information.
 
WHAT IS THE FUND'S INVESTMENT OBJECTIVE? The Balanced Fund seeks capital
appreciation and income, with a secondary investment objective of conservation
of capital. (See "INVESTMENT OBJECTIVE").
 
WHAT ARE THE FUND'S PERMITTED INVESTMENTS? The Fund primarily invests,
consistent with its investment objective, in equity securities including common
stocks and securities convertible into common stocks. The Fund may also invest
consistent with its investment objective and investment policies in fixed-income
securities. (See "INVESTMENT POLICIES").
 
WHAT ARE THE RISKS INVOLVED WITH AN INVESTMENT IN THE BALANCED FUND? The
investment policies of the Fund entail certain risks and considerations of which
an investor should be aware. The Fund may purchase common stocks and other
equity securities that are volatile and which may fluctuate in value more than
other types of investments. Values of fixed income securities and,
correspondingly, share prices of Funds invested in such securities, tend to vary
inversely with interest rates, and may be affected by other market and economic
factors as well. (See "Risk Factors").
 
ARE MY INVESTMENTS INSURED? HighMark's Shares are not federally insured by the
FDIC or any other government agency. Any guarantee by the U.S. Government, its
agencies or any instrumentalities of the securities in which the Fund invests
guarantees only the payment of principal and interest on the guaranteed
security, and does not guarantee the total return or value of the security or
total return or value of Shares of the Fund.
 
WHO IS THE ADVISOR? Pacific Alliance Capital Management, a division of Union
Bank of California, N.A., serves as the Advisor to HighMark. (See "The
Advisor").
 
WHO IS THE ADMINISTRATOR? SEI Fund Resources serves as the Administrator of
HighMark. (See "The Administrator").
 
WHO IS THE CUSTODIAN? Union Bank of California, N.A. (the "Bank") serves as the
custodian of HighMark's assets. (See "The Custodian").
 
WHO IS THE DISTRIBUTOR? SEI Financial Services Company acts as distributor of
HighMark's Shares. (See "The Distributor").
 
HOW DO I PURCHASE AND REDEEM SHARES? Purchases and redemptions may be made
through the Distributor on days on which both the New York Stock Exchange and
the Federal Reserve wire system are open for business ("Business Days"). The
minimum initial investment is generally $1,000. A purchase order will be
effective if the Distributor receives an order prior to 1:00 p.m., Pacific time
(4:00 p.m., Eastern time). Purchase orders for Shares will be executed at a per
Share price equal to the asset value next determined after the purchase order is
effective (plus any applicable sales charge). Redemption orders must be placed
prior to 1:00 p.m., Pacific
 
                                        2
<PAGE>   305
 
time (4:00 p.m., Eastern time) on any Business Day for the order to be effective
that day. (See "HOW TO PURCHASE SHARES" and "REDEMPTION OF SHARES").
 
HOW ARE DIVIDENDS PAID? Substantially all of the net investment income
(exclusive of capital gains) of the Fund is distributed in the form of monthly
dividends to Shareholders of record. Any capital gain is distributed at least
annually. Distributions are paid in additional Shares unless the Shareholder
elects to take the payment in cash. (See "DIVIDENDS").
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                       PAGE
                                                                                       ----
<S>                                                                                    <C>
Summary..............................................................................     2
Balanced Fund Fee Table..............................................................     5
Financial Highlights.................................................................     6
Fund Description.....................................................................     7
Investment Objective.................................................................     7
Investment Policies..................................................................     7
General..............................................................................     8
  Money Market Instruments...........................................................     8
  Illiquid and Restricted Securities.................................................     8
  Lending of Portfolio Securities....................................................     8
  Other Investments..................................................................     9
  Risk Factors.......................................................................    10
Investment Limitations...............................................................    12
  Portfolio Turnover.................................................................    13
How to Purchase Shares...............................................................    13
  How to Purchase By Mail............................................................    14
  How to Purchase By Wire............................................................    15
  How to Purchase through an Automatic Investment Plan ("AIP").......................    15
  How to Purchase Through Financial Institutions.....................................    15
  Sales Charges......................................................................    16
  Letter of Intent...................................................................    17
  Rights of Accumulation.............................................................    17
  Sales Charge Waivers...............................................................    17
  Reductions for Qualified Groups....................................................    19
Exchange Privileges..................................................................    19
Redemption of Shares.................................................................    21
  By Mail............................................................................    21
  Telephone Transactions.............................................................    21
  Systematic Withdrawal Plan ("SWP").................................................    22
  Other Information Regarding Redemptions............................................    22
</TABLE>
 
                                        3
<PAGE>   306
 
<TABLE>
<CAPTION>
                                                                                       PAGE
                                                                                        --
<S>                                                                                    <C>
Dividends............................................................................    23
Federal Taxation.....................................................................    23
Service Arrangements.................................................................    25
  The Advisor........................................................................    25
  Administrator......................................................................    26
  The Transfer Agent.................................................................    26
  Shareholder Service Plan...........................................................    26
  Distributor........................................................................    27
  The Distribution Plan..............................................................    27
  Banking Laws.......................................................................    28
  Custodian..........................................................................    29
General Information..................................................................    29
  Description of HighMark & Its Shares...............................................    29
  Performance Information............................................................    29
  Miscellaneous......................................................................    30
Description of Permitted Investments.................................................    31
</TABLE>
 
                                        4
<PAGE>   307
 
                            BALANCED FUND FEE TABLE
 
<TABLE>
<CAPTION>
                                                                                                           BALANCED
                                                                                                             FUND
                                                                                                            RETAIL
                                                                                                            SHARES
                                                                                                           --------
<S>                                                                                                        <C>
SHAREHOLDER TRANSACTION EXPENSES(A)
  Maximum Sales Load Imposed on Purchases (as a percentage of offering price)............................     4.50%
  Maximum Sales Load Imposed on Reinvested Dividends (as a percentage of offering price).................        0%
  Deferred Sales Load (as a percentage of original purchase price or redemption proceeds, as
    applicable)(b).......................................................................................        0%
  Redemption Fees (as a percentage of amount redeemed, if applicable)(c).................................        0%
  Exchange Fee(a)........................................................................................   $    0
ANNUAL OPERATING EXPENSES (as a percentage of net assets)
  Management Fees........................................................................................     0.60%
  12b-1 Fees.............................................................................................     0.25%
  Other Expenses (after voluntary reduction)(d)..........................................................     0.30%
  Total Fund Operating Expenses(e).......................................................................     1.15%
                                                                                                             =====
</TABLE>
 
  EXAMPLE: You would pay the following expenses on a $1,000 investment, assuming
(1) 5% annual return and (2) redemption at the end of each time period.
 
<TABLE>
<CAPTION>
                                                                         3        5        10
                                                              1 YEAR   YEARS    YEARS     YEARS
                                                              ------   ------   ------   -------
<S>                                                           <C>      <C>      <C>      <C>
Balanced Fund Retail Shares.................................   $ 56     $ 80     $105     $ 178
</TABLE>
 
  The purpose of the table above is to assist an investor in the Balanced Fund
in understanding the various costs and expenses that a Shareholder will bear
directly or indirectly. For a more complete discussion of the Fund's annual
operating expenses, see SERVICE ARRANGEMENTS below. THE FOREGOING EXAMPLE SHOULD
NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE EXPENSES. ACTUAL EXPENSES
MAY BE GREATER OR LESS THAN THOSE SHOWN.
 
  Long-term shareholders of Retail Shares may pay more than the economic
equivalent of the maximum front-end sales charges otherwise permitted by rules
of the National Association of Securities Dealers, Inc.
- ---------------
 
(a) Certain entities (including Union Bank of California and its affiliates)
    making investments in the Balanced Fund on behalf of their customers may
    charge customers fees for services provided in connection with the
    investment in, redemption of, and exchange of Shares. (See HOW TO PURCHASE
    SHARES, EXCHANGE PRIVILEGES, REDEMPTION OF SHARES, and SERVICE ARRANGEMENTS
    below.)
 
(b) A Contingent Deferred Sales Charge of 1.00% will be assessed against the
    proceeds of any redemption request relating to Retail Shares of the Fund
    that were purchased without a sales charge in reliance upon the waiver
    accorded to purchases in the amount of $1 million or more, but only where
    such redemption request is made within one year of the date the Shares were
    purchased.
 
(c) A wire redemption charge is deducted from the amount of a wire redemption
    payment made at the request of a Shareholder. (See REDEMPTION OF SHARES
    below.)
 
(d) Absent voluntary fee waivers, OTHER EXPENSES would be .48% for the Retail
    Shares of the Balanced Fund.
 
(e) Absent voluntary fee waivers, TOTAL FUND OPERATING EXPENSES would be 1.33%
    for the Retail Shares of the Balanced Fund.
 
                                        5
<PAGE>   308
 
                              FINANCIAL HIGHLIGHTS
 
  The table below sets forth certain financial information with respect to the
Retail Shares of the Balanced Fund. Financial highlights for the Fund for the
period ended July 31, 1996 have been derived from financial statements audited
by Deloitte & Touche LLP, independent auditors for HighMark, whose report
thereon is included in the Statement of Additional Information. Prior to the
fiscal year ended July 31, 1996, Coopers & Lybrand L.L.P. served as independent
accountants for HighMark.
 
  Prior to June 20, 1994, the Balanced Fund offered a single class of Shares
(now designated Fiduciary Shares) throughout the periods shown.
 
                                 BALANCED FUND
 
<TABLE>
<CAPTION>
                                                             YEAR ENDED JULY
                                                                   31,
                                                            -----------------
                                                                                JUNE 20, 1994 TO
                                                             1996       1995    JULY 31, 1994(A)
                                                            ------     ------   ----------------
                                                            RETAIL     RETAIL        RETAIL
                                                            ------     ------   ----------------
<S>                                                         <C>        <C>      <C>
Net Asset Value, Beginning of Period......................  $10.79     $ 9.71        $ 9.71
                                                            ------     ------        ------
Investment Activities
  Net investment income...................................    0.40       0.43
  Net realized and unrealized gains (losses) on
     investments..........................................    0.77       1.04          0.06
                                                            ------     ------        ------
          Total from Investment Activities................    1.17       1.47          0.06
                                                            ------     ------        ------
Distributions
  Net investment income...................................   (0.40)     (0.39)        (0.06)
                                                            ------     ------        ------
Net Asset Value, End of Period............................  $11.56     $10.79        $ 9.71
                                                            ======     ======        ======
          Total Return....................................   10.94%     15.60%         0.25%(b)
Ratios/Supplementary Data:
  Net Assets at end of period (000).......................  $  694     $  467            --
  Ratio of expenses to average net assets.................    0.94%      0.90%           --
  Ratio of net investment income to average net assets....    3.48%      3.78%           --
  Ratio of expenses to average net assets*................    2.03%      2.05%           --
  Ratio of net investment income to average net assets*...    2.39%      2.63%           --
Portfolio turnover(c).....................................   12.84%     20.70%        44.14%
</TABLE>
 
- ---------------
 
(a)  Period from commencement of operations. On June 20, 1994, the Balanced Fund
     commenced offering Investor Shares (now called "Retail Shares") and
     designated existing shares as Fiduciary Shares.
 
(b)  Represents total return for the Fiduciary Shares from commencement of
     operations to June 19, 1994 plus the total return for the Retail Shares for
     the period from June 20, 1994 to July 31, 1994.
 
(c)  Portfolio turnover is calculated on the basis of the Fund as a whole
     without distinguishing between the classes of shares issued.
 
                                        6
<PAGE>   309
 
FUND
DESCRIPTION             HighMark Funds ("HighMark") is an open-end, diversified,
                      registered investment company that currently offers units
                      of beneficial interest ("Shares") in sixteen separate
                      investment portfolios ("Funds"). All of the Funds are
                      advised by Pacific Alliance Capital Management (the
                      "Advisor"), a division of Union Bank of California, N.A.
                      Shareholders may purchase Shares of selected Funds through
                      two separate classes (the "Retail" and "Fiduciary"
                      classes). These classes may have different sales charges
                      and other expenses, which may affect performance.
                      Information regarding HighMark's other Funds and other
                      classes is contained in separate prospectuses that may be
                      obtained from HighMark's Distributor, SEI Financial
                      Services Company, at Oaks, Pennsylvania, 19456, or by
                      calling 1-800-433-6884.
 
                        For information concerning those investors who qualify
                      to purchase Retail Shares, sales charges and the operation
                      of HighMark's Distribution Plan, see HOW TO PURCHASE
                      SHARES and SERVICE ARRANGEMENTS below. (Retail Shares may
                      be hereinafter referred to as "Shares.")
 
INVESTMENT
OBJECTIVE               The Balanced Fund seeks capital appreciation and income.
                      Conservation of capital is a secondary consideration.
 
                        The investment objective and certain of the investment
                      limitations of the Balanced Fund may not be changed
                      without a vote of the holders of a majority of the
                      outstanding Shares of the Fund (as defined under GENERAL
                      INFORMATION--Miscellaneous below). There can be no
                      assurance that the Fund will achieve its investment
                      objective.
 
INVESTMENT
POLICIES                The Balanced Fund may invest in any type or class of
                      security. Under normal market conditions, the Balanced
                      Fund will invest between 50% and 70% of its total assets
                      in equity securities. Senior fixed-income securities will
                      normally constitute at least 25% of the Balanced Fund's
                      net assets.
 
                        Equity securities include common stocks, warrants to
                      purchase common stocks, American Depositary Receipts
                      ("ADRs"), preferred stocks, securities (including debt
                      securities) convertible into or exercisable for common
                      stocks and Standard & Poor's Depositary Receipts
                      ("SPDRs"). The Balanced Fund's fixed-income investments
                      consist of bonds, debentures, notes, zero-coupon
                      securities, all forms of mortgage-related securities
                      (including collateralized mortgage obligations), and
                      obligations issued or guaranteed by the U.S. or foreign
                      Governments or their agencies or instrumentalities.
                      Privately issued mortgage-backed securities must be rated
                      in one of the top two categories by at least one NRSRO as
                      defined below. In addition to mortgage-backed securities,
                      the Balanced Fund may invest in other asset-backed
                      securities including, but not limited to, those backed by
                      company receivables, truck and auto loans, leases, and
                      credit card or other receivables.
 
                                        7
<PAGE>   310
 
                        The Balanced Fund may invest in bonds, notes and
                      debentures of any maturity issued by U.S. and foreign
                      corporate and governmental issuers. The Balanced Fund will
                      invest only in corporate fixed-income securities that are
                      rated at the time of purchase as investment grade by a
                      nationally recognized statistical rating organization
                      ("NRSRO") (e.g., at least Baa from Moody's Investors
                      Service, Inc. ("Moody's") or BBB from Standard & Poor's
                      Corporation ("S&P")) or, if unrated, which the Advisor
                      deems to be attractive opportunities and of comparable
                      quality. For a description of the rating symbols of the
                      NRSROs utilized by the Advisor, see the Appendix to the
                      Statement of Additional Information.
 
                        In the event that a security owned by the Fund is
                      downgraded below the stated rating categories, the Advisor
                      will take appropriate action with regard to that security.
 
                        The portions of the Balanced Fund's assets invested in
                      equity securities and fixed-income securities will vary
                      from time to time within the stated ranges, depending upon
                      the Advisor's assessment of business, economic and market
                      conditions. The Advisor considers a combination of risk,
                      capital appreciation, income, and protection of capital
                      value.
 
GENERAL               Money Market Instruments
 
                        Under normal market conditions, the Balanced Fund may
                      invest up to 25% of its total assets in money market
                      instruments. When market conditions indicate a temporary
                      "defensive" investment strategy as determined by the
                      Advisor, the Fund may invest more than 25% of its total
                      assets in money market instruments. The Fund will not be
                      pursuing its investment objective to the extent that a
                      substantial portion of its assets are invested in money
                      market instruments.
 
                      Illiquid and Restricted Securities
 
                        The Balanced Fund shall limit investment in illiquid
                      securities to 15% or less of its net assets. Generally, an
                      "illiquid security" is any security that cannot be
                      disposed of promptly and in the ordinary course of
                      business at approximately the amount at which the Fund has
                      valued the instrument. The absence of a trading market can
                      make it difficult to ascertain the market value of
                      illiquid securities. The Fund may purchase restricted
                      securities which have not been registered under the
                      Securities Act of 1933 (e.g., Rule 144A Securities and
                      Section 4(2) commercial paper) subject to policies
                      approved by the Board of Trustees. See INVESTMENT
                      RESTRICTIONS in the Statement of Additional Information.
 
                      Lending of Portfolio Securities
 
                        In order to generate additional income, the Fund may
                      lend its portfolio securities to broker-dealers, banks or
                      other institutions. The Fund may lend
 
                                        8
<PAGE>   311
 
                      portfolio securities in an amount representing up to
                      33 1/3% of the value of the Fund's total assets.
 
                      Other Investments
 
                        The Fund may enter into repurchase agreements and
                      reverse repurchase agreements.
 
                        The Balanced Fund may enter into forward commitments or
                      purchase securities on a "when-issued" basis. The Balanced
                      Fund expects that commitments by it to enter into forward
                      commitments or purchase when-issued securities will not
                      exceed 25% of the value of the Fund's total assets under
                      normal market conditions. The Fund does not intend to
                      purchase when-issued securities or forward commitments for
                      speculative or leveraging purposes but only for the
                      purpose of acquiring portfolio securities.
 
                        The Fund may also invest in money market instruments,
                      money market funds, and in cash, and may invest in other
                      registered investment companies with similar investment
                      objectives.
 
                        The Balanced Fund may invest up to 5% of its total
                      assets in the shares of any one registered investment
                      company, but may not own more than 3% of the securities of
                      any one registered investment company or invest more than
                      10% of its assets in the securities of other registered
                      investment companies. In accordance with an exemptive
                      order issued to HighMark by the SEC, such other registered
                      investment company securities may include shares of a
                      money market fund of HighMark, and may include registered
                      investment companies for which the Advisor or Sub-Advisor
                      to a Fund of HighMark, or an affiliate of such Advisor or
                      Sub-Advisor, serves as investment advisor, administrator
                      or distributor. Because other registered investment
                      companies employ an investment advisor, such investment by
                      a Fund may cause Shareholders to bear duplicative fees.
                      The Advisor will waive its fees attributable to the assets
                      of the investing Fund invested in a money market fund of
                      HighMark, and, to the extent required by applicable law,
                      the Advisor will waive its fees attributable to the assets
                      of the Fund invested in any investment company. Some Funds
                      are subject to additional restrictions on investment in
                      other investment companies. See "INVESTMENT RESTRICTIONS"
                      in the Statement of Additional Information.
 
                        The Balanced Fund may write covered calls on its equity
                      securities and enter into closing transactions with
                      respect to covered call options.
 
                        The Fund may also buy and sell options, futures
                      contracts and options on futures. The Fund may enter into
                      futures contracts and options on futures only to the
                      extent that obligations under such contracts or
                      transactions, together with options on securities,
                      represent not more than 25% of the Fund's assets. The
 
                                        9
<PAGE>   312
 
                      aggregate value of options on securities (long puts and
                      calls) will not exceed 10% of the Fund's net assets at the
                      time such options are purchased by the Fund.
 
                        The Fund may purchase options in stock indices to invest
                      cash on an interim basis. The aggregate premium paid on
                      all options on stock indices cannot exceed 20% of the
                      Fund's total assets.
 
                        All of the common stocks in which the Balanced Fund
                      invests (including foreign securities in the form of ADRs
                      but not including Rule 144A Securities) are traded on
                      registered exchanges or in the over-the-counter market.
 
                        For further information, see "DESCRIPTION OF PERMITTED
                      INVESTMENTS."
 
                      Risk Factors
 
                        Like any investment program, investment in the Balanced
                      Fund entails certain risks. As with a fund investing
                      primarily in equity securities, the Balanced Fund is
                      subject to the risk that prices of equity securities, or
                      certain types of equity securities in which the Fund
                      invests, in general will decline over short or even
                      extended periods. Since the Fund's shares will fluctuate
                      in value, the Fund may be more suitable for long-term
                      investors who can bear the risk of short-term
                      fluctuations. In addition, the market value of
                      fixed-income securities bears an inverse relationship to
                      changes in market interest rates, which may affect the net
                      asset value of Shares. The longer the remaining maturity
                      of a security, the greater is the effect of interest rate
                      changes on its market value. Generally, because of their
                      fixed-income features, convertible securities will
                      fluctuate in value to a lesser degree than the common
                      stocks into which they are convertible. Changes in the
                      value of a Fund's fixed-income securities will not affect
                      cash income received from ownership of such securities,
                      but will affect a Fund's net asset value.
 
                        Because the Balanced Fund also invests in debt
                      securities, investors in the Balanced Fund are also
                      exposed to credit risk, which relates to the ability of an
                      issuer to make payments of principal and interest, and
                      market risk, which relates to changes in a security's
                      value as a result of interest rate changes generally. An
                      increase in interest rates will generally reduce the value
                      of the investments in the Balanced Fund and a decline in
                      interest rates will generally increase the value of those
                      investments. Accordingly, the net asset value of the
                      Fund's shares will vary as a result of changes in the
                      value of the securities in the Fund's portfolio.
                      Therefore, an investment in the Fund may decline in value,
                      resulting in a loss of principal. Because interest rates
                      vary, it is impossible to predict the income or yield of
                      the Fund for any particular period. While debt securities
                      normally fluctuate less in price than equity securities,
                      there have been extended periods of cyclical increases in
                      interest rates that have caused significant declines in
                      debt securities prices. Certain fixed-income securities
                      which may be purchased by the
 
                                       10
<PAGE>   313
 
                      Balanced Fund such as zero-coupon obligations,
                      mortgage-backed and asset-backed securities, and
                      collateralized mortgage obligations ("CMOs") will have
                      greater price volatility then other fixed-income
                      obligations. Because declining interest rates may lead to
                      prepayment of underlying mortgages, automobile sales
                      contracts or credit card receivables, the prices of
                      mortgage-related and asset-backed securities may not rise
                      with a decline in interest rates. Mortgage-backed and
                      asset-backed securities and CMOs are extremely sensitive
                      to the rate of principal prepayment. Similarly, callable
                      corporate bonds also present risk of prepayment. During
                      periods of falling interest rates, securities that can be
                      called or prepaid may decline in value relative to similar
                      securities that are not subject to call or prepayment.
 
                        Depending upon prevailing market conditions, the
                      Balanced Fund may purchase debt securities at a discount
                      from face value, which produces a yield greater than the
                      coupon rate. Conversely, if debt securities are purchased
                      at premium over face value, the yield will be lower than
                      the coupon rate. In making investment decisions, the
                      Advisor will consider many factors other than current
                      yield, including the preservation of capital, the
                      potential for realizing capital appreciation, maturity,
                      and yield to maturity. From time to time, the equity and
                      debt markets may fluctuate independently of one another.
                      In other words, a decline in equity markets may in certain
                      instances be offset by a rise in debt markets, or vice
                      versa. As a result, the Balanced Fund, with its balance of
                      equity and debt investments, may entail less investment
                      risk (and a potentially smaller investment return) than a
                      mutual fund investing primarily in equity securities.
 
                        As described above, the Balanced Fund may invest in debt
                      securities within the four highest rating categories
                      assigned by a NRSRO and comparable unrated securities.
                      Securities rated BBB by S&P or Baa by Moody's are
                      considered investment grade, but are deemed by these
                      rating services to have some speculative characteristics,
                      and adverse economic conditions or other circumstances are
                      more likely to lead to a weakened capacity to make
                      principal and interest payments than is the case with
                      higher-grade bonds. Should subsequent events cause the
                      rating of a debt security purchased by the Balanced Fund
                      to fall below the fourth highest rating category, the
                      Advisor will consider such an event in determining whether
                      the Balanced Fund should continue to hold that security.
                      In no event, however, would the Balanced Fund be required
                      to liquidate any such portfolio security where the
                      Balanced Fund would suffer a loss on the sale of such
                      security.
 
                        The Balanced Fund may invest in convertible securities,
                      which include corporate bonds, notes or preferred stocks
                      that can be converted into common stocks or other equity
                      securities. Convertible securities also include other
                      securities, such as warrants, that provide an opportunity
                      for equity participation. Because convertible
 
                                       11
<PAGE>   314
 
                      securities can be converted into common stock, their
                      values will normally vary in some proportion with those of
                      the underlying common stock. Convertible securities
                      usually provide a higher yield than the underlying common
                      stock, however, so that the price decline of a convertible
                      security may sometimes be less substantial than that of
                      the underlying common stock. The value of convertible
                      securities that pay dividends or interest, like the value
                      of all fixed-income securities, generally fluctuates
                      inversely with changes in interest rates. Warrants have no
                      voting rights, pay no dividends and have no rights with
                      respect to the assets of the corporation issuing them.
                      They do not represent ownership of the securities for
                      which they are exercisable, but only the right to buy such
                      securities at a particular price. The Balanced Fund will
                      not purchase any convertible debt security or convertible
                      preferred stock unless it has been rated as investment
                      grade at the time of acquisition by a NRSRO or that is not
                      rated but is determined to be of comparable quality by the
                      Advisor.
 
                        The Balanced Fund may invest in securities issued or
                      guaranteed by foreign corporations or foreign governments,
                      their political subdivisions, agencies or
                      instrumentalities and obligations of supranational
                      entities such as the World Bank and the Asian Development
                      Bank. Any investments in these securities will be in
                      accordance with the Fund's investment objective and
                      policies, and are subject to special risks, such as
                      adverse political and economic developments, possible
                      seizure, nationalization or expropriation of foreign
                      investments, less stringent disclosure requirements,
                      changes in foreign currency exchange rates, increased
                      costs associated with the conversion of foreign currency
                      into U.S. dollars, the possible establishment of exchange
                      controls or taxation at the source or the adoption of
                      other foreign governmental restrictions. To the extent
                      that the Fund may invest in securities of foreign issuers
                      that are not traded on any exchange, there is a further
                      risk that these securities may not be readily marketable.
                      The Balanced Fund will not hold foreign currency for
                      investment purposes.
 
INVESTMENT
LIMITATIONS             The Balanced Fund may not:
 
                        1) Purchase securities of any one issuer, other than
                      obligations issued or guaranteed by the U.S. Government,
                      its agencies, or instrumentalities, if, immediately after
                      the purchase, more than 5% of the value of the Fund's
                      total assets would be invested in the issuer or the Fund
                      would hold more than 10% of any class of securities of the
                      issuer or more than 10% of the issuer's outstanding voting
                      securities (except that up to 25% of the value of the
                      Fund's total assets may be invested without regard to
                      these limitations);
 
                        2) Purchase any securities that would cause more than
                      25% of the Fund's total assets at the time of purchase to
                      be invested in securities of one or more issuers
                      conducting their principal business activities in the same
                      industry, provided that
 
                                       12
<PAGE>   315
 
                      (a) there is no limitation with respect to obligations
                      issued or guaranteed by the U.S. or foreign governments or
                      their agencies or instrumentalities and repurchase
                      agreements secured by obligations of the U.S. Government
                      or its agencies or instrumentalities; (b) wholly owned
                      finance companies will be considered to be in the
                      industries of their parents if their activities are
                      primarily related to financing the activities of their
                      parents; and (c) utilities will be divided according to
                      their services (for example, gas, gas transmission,
                      electric and gas, electric, and telephone will each be
                      considered a separate industry);
 
                        3) Make loans, except that the Fund may purchase or hold
                      debt instruments, lend portfolio securities, and enter
                      into repurchase agreements in accordance with its
                      investment objective and policies.
 
                        The foregoing percentages will apply at the time of the
                      purchase of a security. The investment limitations listed
                      above are fundamental policies the substance of which may
                      not be changed without a vote of a majority of the
                      outstanding Shares of the Fund. Additional fundamental and
                      non-fundamental investment limitations are set forth in
                      the Statement of Additional Information.
 
                      Portfolio Turnover
 
                        The Fund's portfolio turnover rate will not be a factor
                      preventing a sale or purchase when the Advisor believes
                      investment considerations warrant. The Fund's portfolio
                      turnover rate may vary greatly from year to year as well
                      as within a particular year. High portfolio turnover rates
                      generally will result in correspondingly higher brokerage
                      and other transactions costs to the Fund and could involve
                      the realization of capital gains that would be taxable
                      when distributed to Shareholders of the Fund. See FEDERAL
                      TAXATION.
 
HOW TO
PURCHASE
SHARES                  As noted above, the Fund is divided into two classes of
                      Shares, Retail and Fiduciary. Retail Shares may be
                      purchased at net asset value plus a sales charge. For a
                      description of investors who qualify to purchase Fiduciary
                      Shares, see the Fiduciary Shares prospectus of the
                      Balanced Fund. HighMark's Retail Shares are offered to
                      investors who are not fiduciary clients of Union Bank of
                      California, N.A., and who are not otherwise eligible for
                      HighMark's Fiduciary class.
 
                        Retail Shares are sold on a continuous basis by
                      HighMark's Distributor, SEI Financial Services Company.
                      The principal office of the Distributor is Oaks,
                      Pennsylvania 19456. If you wish to purchase Shares, you
                      may contact your investment professional or telephone
                      HighMark at 1-800-433-6884.
 
                        The minimum initial investment is generally $1,000 and
                      the minimum subsequent investment is generally only $100.
                      For present and retired directors, officers, and employees
                      (and their spouses and children under the age of 21) of
                      Union Bank of California, SEI Financial Services Company
                      and their affiliates, the
 
                                       13
<PAGE>   316
 
                      minimum initial investment is $250 and the minimum
                      subsequent investment is $50. The Fund's initial and
                      subsequent minimum purchase amounts may be waived if
                      purchases are made in connection with Individual
                      Retirement Accounts, Keoghs, payroll deduction plans,
                      401(k) or similar plans. Purchases and redemption of
                      Shares of the Fund may be made on days on which both the
                      New York Stock Exchange and the Federal Reserve wire
                      system are open for business ("Business Days").
 
                        Purchase orders for Shares will be executed at a per
                      Share price equal to the net asset value next determined
                      after the receipt of the purchase order by the Distributor
                      (plus any applicable sales charge). The net asset value
                      per Share of the Fund is determined by dividing the total
                      market value of the Fund's investments and other assets,
                      less any liabilities, by the total number of outstanding
                      Shares of the Fund. Net asset value per Share is
                      determined daily as of 1:00 p.m., Pacific time (4:00 p.m.,
                      Eastern time) on any Business Day. Purchases will be made
                      in full and fractional Shares of HighMark calculated to
                      three decimal places. HighMark reserves the right to
                      reject a purchase order when the Distributor determines
                      that it is not in the best interest of HighMark and/or its
                      Shareholders to accept such order.
 
                        The securities in the Fund will be valued at market
                      value. If market quotations are not available, the
                      securities will be valued by a method that HighMark's
                      Board of Trustees believes accurately reflects fair value.
                      For further information about valuation of investments in
                      the Balanced Fund, see the Statement of Additional
                      Information.
 
                        Shares of the Fund are offered only to residents of
                      states in which the Shares are eligible for purchase.
 
                      How to Purchase By Mail
 
                        You may purchase Shares of the Balanced Fund by
                      completing and signing an Account Application form and
                      mailing it, along with a check (or other negotiable bank
                      instrument or money order) payable to "HighMark Funds
                      (Fund Name)," to the transfer agent at P.O. Box 8416,
                      Boston, Massachusetts 02266-8416. All purchases made by
                      check should be in U.S. dollars and made payable to
                      "HighMark Funds (Fund Name)." Third party checks, credit
                      card checks or cash will not be accepted. You may purchase
                      more Shares at any time by mailing payment also to the
                      transfer agent at the above address. Orders placed by mail
                      will be executed on receipt of your payment. If your check
                      does not clear, your purchase will be canceled and you
                      could be liable for any losses or fees incurred.
 
                        You may obtain Account Application Forms for the
                      Balanced Fund by calling the Distributor at
                      1-800-433-6884.
 
                                       14
<PAGE>   317
 
                      How to Purchase By Wire
 
                        You may purchase Shares of the Balanced Fund by wiring
                      Federal funds, provided that your Account Application has
                      been previously received. You must wire funds to the
                      transfer agent and the wire instructions must include your
                      account number. You must call the transfer agent at
                      1-800-433-6884 before wiring any funds. An order to
                      purchase Shares by Federal funds wire will be deemed to
                      have been received by the Fund on the Business Day of the
                      wire; provided that the Shareholder wires funds to the
                      transfer agent prior to 1:00 p.m., Pacific time (4:00
                      p.m., Eastern time). If the transfer agent does not
                      receive the wire by 1:00 p.m., Pacific time (4:00 p.m.,
                      Eastern time), the order will be executed on the next
                      Business Day.
 
                      How to Purchase through an Automatic Investment Plan
                      ("AIP")
 
                        You may arrange for periodic additional investments in
                      the Balanced Fund through automatic deductions by
                      Automated Clearing House ("ACH") from a checking account
                      by completing this section in the Account Application
                      form. The minimum pre-authorized investment amount is $100
                      per month. The AIP is available only for additional
                      investments to an existing account.
 
                      How to Purchase Through Financial Institutions
 
                        Shares of the Fund may be purchased through financial
                      institutions, including the Advisor, that provide
                      distribution assistance or Shareholder services. Shares
                      purchased by persons ("Customers") through financial
                      institutions may be held of record by the financial
                      institution. Financial institutions may impose an earlier
                      cut-off time for receipt of purchase orders directed
                      through them to allow for processing and transmittal of
                      these orders to the transfer agent for effectiveness the
                      same day. Customers should contact their financial
                      institution for information as to that institution's
                      procedures for transmitting purchase, exchange or
                      redemption orders to HighMark.
 
                        Customers who desire to transfer the registration of
                      Shares beneficially owned by them but held of record by a
                      financial institution should contact the institution to
                      accomplish such change.
 
                        Depending upon the terms of a particular Customer
                      account, a financial institution may charge a Customer
                      account fees. Information concerning these services and
                      any charges will be provided to the Customer by the
                      financial institution.
 
                                       15
<PAGE>   318
 
                      Sales Charges
 
                        The following table shows the regular sales charge on
                      Retail Shares to a "single purchaser" (defined below)
                      together with the dealer discount paid to dealers and the
                      agency commission paid to brokers (collectively the
                      "commission"):
 
<TABLE>
<CAPTION>
                                                                              SALES CHARGE AS      COMMISSION AS
                                                       SALES CHARGE AS A        APPROPRIATE        PERCENTAGE OF
                                                         PERCENTAGE OF       PERCENTAGE OF NET       OFFERING
                               AMOUNT OF PURCHASE       OFFERING PRICE        AMOUNT INVESTED          PRICE
                              ---------------------    -----------------     -----------------     -------------
                              <S>                      <C>                   <C>                   <C>
                                          0-$49,999           4.50%                 4.71%               4.05%
                                    $50,000-$99,000           4.00%                 4.17%               3.60%
                                  $100,000-$249,000           3.50%                 3.63%               3.15%
                                  $250,000-$499,999           2.50%                 2.56%               2.25%
                                  $500,000-$999,999           1.50%                 1.52%               1.35%
                               $1,000,000 and Over*           0.00%                 0.00%               0.00%
</TABLE>
 
                     ------------------------------------
 
                       * A contingent deferred sales charge of 1.00% will be
                         assessed against any proceeds of any redemption of such
                         Retail Shares prior to one year from date of purchase.
 
                        The commissions shown in the table apply to sales
                      through authorized dealers and brokers. Under certain
                      circumstances, the Distributor may use its own funds to
                      compensate financial institutions and intermediaries in
                      amounts that are additional to the commissions shown
                      above. In addition, the Distributor may, from time to time
                      and at its own expense, provide promotional incentives in
                      the form of cash or other compensation to certain
                      financial institutions and intermediaries whose registered
                      representatives have sold or are expected to sell
                      significant amounts of the Retail Shares of the Fund. Such
                      other compensation may take the form of payments for
                      travel expenses, including lodging, incurred in connection
                      with trips taken by qualifying registered representatives
                      to places within or without the United States. Under
                      certain circumstances, commissions up to the amount of the
                      entire sales charge may be reallowed to dealers or
                      brokers, who might then be deemed to be "underwriters"
                      under the Securities Act of 1933. Commission rates may
                      vary among the Funds.
 
                        In calculating the sales charge rates applicable to
                      current purchases of the Fund's Shares, a "single
                      purchaser" is entitled to cumulate current purchases with
                      the net purchase of previously purchased Shares of the
                      Fund and other of HighMark's funds (the "Eligible Funds")
                      which are sold subject to a comparable sales charge.
 
                        The term "single purchaser" refers to (i) an individual,
                      (ii) an individual and spouse purchasing Shares of the
                      Fund for their own account or for trust or custodial
                      accounts for their minor children, or (iii) a fiduciary
                      purchasing for any one trust, estate or fiduciary account
                      including employee benefit plans created
 
                                       16
<PAGE>   319
 
                      under Sections 401, 403(b) or 457 of the Internal Revenue
                      Code of 1986, as amended (the "Code"), including related
                      plans of the same employer. To be entitled to a reduced
                      sales charge based upon Shares already owned, the investor
                      must ask the Distributor for such entitlement at the time
                      of purchase and provide the account number(s) of the
                      investor, the investor and spouse, and their minor
                      children, and give the age of such children. The Fund may
                      amend or terminate this right of accumulation at any time
                      as to subsequent purchases.
 
                      Letter of Intent
 
                        By initially investing at least $1,000 and submitting a
                      Letter of Intent (the "Letter") to the Distributor, a
                      "single purchaser" may purchase Shares of the Fund and the
                      other Eligible Funds during a 13-month period at the
                      reduced sales charge rates applicable to the aggregate
                      amount of the intended purchases stated in the Letter. The
                      Letter may apply to purchases made up to 90 days before
                      the date of the Letter. To receive credit for such prior
                      purchases and later purchases benefitting from the Letter,
                      the Shareholder must notify the Transfer Agent at the time
                      the Letter is submitted that there are prior purchases
                      that may apply, and, at the time of later purchases,
                      notify the Transfer Agent that such purchases are
                      applicable under the Letter.
 
                      Rights of Accumulation
 
                        In calculating the sales charge rates applicable to
                      current purchases of Retail Shares, a "single purchaser"
                      is entitled to cumulate current purchases with the current
                      market value of previously purchased Retail Shares of the
                      Funds sold subject to a comparable sales charge.
 
                        To exercise your right of accumulation based upon Shares
                      you already own, you must ask the Distributor for this
                      reduced sales charge at the time of your additional
                      purchase and provide the account number(s) of the
                      investor, as applicable, the investor and spouse, and
                      their minor children. The Funds may amend or terminate
                      this right of accumulation at any time as to subsequent
                      purchases.
 
                      Sales Charge Waivers
 
                        The following categories of investors may purchase
                      Retail Shares of the Funds with no sales charge in the
                      manner described below (which may be changed or eliminated
                      at any time by the Distributor):
 
                        (1) Existing holders of Retail Shares of a Fund upon the
                      reinvestment of dividend and capital gain distributions on
                      those Shares;
 
                                       17
<PAGE>   320
 
                        (2) Investment companies advised by Pacific Alliance
                      Capital Management or distributed by SEI Financial
                      Services Company or its affiliates placing orders on each
                      entity's behalf;
 
                        (3) State and local governments;
 
                        (4) Individuals who have received distributions from
                      employee benefit trust accounts who are rolling over such
                      distributions into an individual retirement account for
                      which the Bank serves as trustee or custodian;
 
                        (5) Individuals who purchase Shares with proceeds from a
                      required minimum distribution at age 70 1/2 from their
                      employee benefit qualified plan or an individual
                      retirement account administered by Union Bank of
                      California;
 
                        (6) Individuals who purchase Shares with proceeds
                      received in connection with a distribution paid from a
                      Union Bank of California trust or agency account;
 
                        (7) Investment advisors or financial planners regulated
                      by a federal or state governmental authority who are
                      purchasing Shares for their own account or for an account
                      for which they are authorized to make investment decisions
                      (i.e., a discretionary account) and who charge a
                      management, consulting or other fee for their services;
                      and clients of such investment advisors or financial
                      planners who place trades for their own accounts if the
                      accounts are linked to the master account of such
                      investment advisor or financial planner on the books and
                      records of a broker or agent;
 
                        (8) Investors purchasing Shares with proceeds from a
                      redemption of Shares of another open-end investment
                      company (other than HighMark Funds) on which a sales
                      charge was paid if such redemption occurred within thirty
                      (30) days prior to the date of the purchase order.
                      Satisfactory evidence of the purchaser's eligibility must
                      be provided at the time of purchase (e.g., a confirmation
                      of the redemption);
 
                        (9) Brokers, dealers and agents who are purchasing for
                      their own account and who have a sales agreement with the
                      Distributor, and their employees (and their spouses and
                      children under the age of 21);
 
                        (10) Investors purchasing Shares on behalf of a
                      qualified prototype retirement plan (other than an IRA,
                      SEP-IRA or Keogh) sponsored by Union Bank of California;
 
                        (11) Purchasers of Retail Shares of the Growth Fund that
                      are sponsors of other investment companies that are unit
                      investment trusts for deposit by such sponsors into such
                      unit investment trusts, and to purchasers of Retail Shares
                      of the Growth Fund that are holders of such unit
                      investment trusts that invest distributions from such
                      investment trusts in Retail Shares of the Growth Fund;
 
                                       18
<PAGE>   321
 
                        (12) Present and retired directors, officers, and
                      employees (and their spouses and children under the age of
                      21) of Union Bank of California, SEI Financial Services
                      Company or their affiliated companies; and
 
                        (13) Investors receiving Shares issued in plans of
                      reorganization, such as mergers, asset acquisitions, and
                      exchange offers, to which HighMark is a party.
 
                        With regard to categories 2 through 12 above, the
                      Distributor must be notified that the purchase qualifies
                      for a sales charge waiver at the time of purchase.
 
                      Reductions for Qualified Groups
 
                        Reductions in sales charges also apply to purchases by
                      individual members of a "qualified group." The reductions
                      are based on the aggregate dollar amount of Shares
                      purchased by all members of the qualified group. For
                      purposes of this paragraph, a qualified group consists of
                      a "company," as defined in the 1940 Act, which has been in
                      existence for more than six months and which has a primary
                      purpose other than acquiring Shares of a Fund at a reduced
                      sales charge, and the "related parties" of such company.
                      For purposes of this paragraph, a "related party" of a
                      company is (i) any individual or other company who
                      directly or indirectly owns, controls or has the power to
                      vote five percent or more of the outstanding voting
                      securities of such company; (ii) any other company of
                      which such company directly or indirectly owns, controls
                      or has the power to vote five percent or more of its
                      outstanding voting securities; (iii) any other company
                      under common control with such company; (iv) any executive
                      officer, director or partner of such company or of a
                      related party; and (v) any partnership of which such
                      company is a partner. Investors seeking to rely on their
                      membership in a qualified group to purchase Shares at a
                      reduced sales load must provide evidence satisfactory to
                      the Transfer Agent of the existence of a bona fide
                      qualified group and their membership therein.
 
                        All orders from a qualified group will have to be placed
                      through a single source and identified at the time of
                      purchase as originating from the same qualified group,
                      although such orders may be placed into more than one
                      discrete account that identifies HighMark.
 
EXCHANGE
PRIVILEGES              As indicated under GENERAL INFORMATION--Description of
                      HighMark & Its Shares, certain of HighMark's Funds issue
                      two classes of Shares (Retail Shares and Fiduciary
                      Shares); as of the date of this Prospectus, the
                      Distribution Plan and distribution fee payable thereunder
                      are applicable only to such Fund's Retail Shares. A
                      Shareholder's eligibility to exchange into a particular
                      class of Shares will be determined at the time of the
                      exchange. The Shareholder must
 
                                       19
<PAGE>   322
 
                      supply, at the time of the exchange, the necessary
                      information to permit confirmation of qualification.
 
                        Each Fund's Shares may be exchanged for Shares of the
                      class of the various other Funds of HighMark which the
                      Shareholder qualifies to purchase directly so long as the
                      Shareholder maintains the applicable minimum account
                      balance in each Fund in which he or she owns Shares and
                      satisfies the minimum initial and subsequent purchase
                      amounts of the Fund into which the Shares are exchanged.
                      Shareholders may exchange their Retail Shares for Retail
                      Shares of a Fund with the same or lower sales charge on
                      the basis of the relative net asset value of the Retail
                      Shares exchanged. Shareholders may exchange their Retail
                      Shares for Retail Shares of a Fund with a higher sales
                      charge by paying the difference between the two sales
                      charges. Shareholders may also exchange Retail Shares of a
                      Money Market Fund for which no sales load was paid for
                      Retail Shares of an Equity Fund. Under such circumstances,
                      the cost of the acquired Retail Shares will be the net
                      asset value per share plus the appropriate sales load. If
                      Retail Shares of the Money Market Fund were acquired in a
                      previous exchange involving Shares of a non-money market
                      HighMark Fund, then such Shares of the Money Market Fund
                      may be exchanged for Shares of an Equity Fund without
                      payment of any additional sales load within a twelve month
                      period. In order to receive a reduced sales charge when
                      exchanging into a Fund, the Shareholder must notify
                      HighMark that a sales charge was originally paid and
                      provide sufficient information to permit confirmation of
                      qualification.
 
                        Exchanges will be made on the basis of the relative net
                      asset values of the Shares exchanged plus any applicable
                      sales charge. Exchanges are subject to the terms and
                      conditions stated herein and the terms and conditions
                      stated in the respective prospectuses of the Funds.
 
                        Certain entities (including Participating Organizations
                      and Union Bank of California and its affiliates), however,
                      may charge customers a fee with respect to exchanges made
                      on the customer's behalf. Information about these charges,
                      if any, can be obtained by the entity effecting the
                      exchange and this Prospectus should be read in conjunction
                      with that information.
 
                        A Shareholder wishing to exchange Shares in the Balanced
                      Fund may do so by contacting the transfer agent at
                      1-800-433-6884. Exchanges will be effected on any Business
                      Day at the net asset value of the Funds involved in the
                      exchange next determined after the exchange request is
                      received by the transfer agent.
 
                        An exchange is considered to be a sale of Shares for
                      federal income tax purposes on which a Shareholder may
                      realize a capital gain or loss. Exchange privileges may be
                      exercised only in those states where Shares of such other
                      Funds
 
                                       20
<PAGE>   323
 
                      of HighMark may legally be sold. HighMark may materially
                      amend or terminate the exchange privileges described
                      herein upon sixty days' notice.
 
REDEMPTION OF
SHARES                  You may redeem your Shares of the Balanced Fund without
                      charge on any Business Day. There is presently a $15
                      charge for wiring redemption proceeds to a Shareholder's
                      designated account. Shares may be redeemed by mail, by
                      telephone or through a prearranged systematic withdrawal
                      plan. Investors who own Shares held by a financial
                      institution should contact that institution for
                      information on how to redeem Shares.
 
                      By Mail
 
                        A written request for redemption of Shares of the
                      Balanced Fund must be received by the transfer agent, P.O.
                      Box 8416, Boston, Massachusetts 02266-8416 in order to
                      constitute a valid redemption request.
 
                        If the redemption request exceeds $5,000, or if the
                      request directs the proceeds to be sent or wired to an
                      address different from that of record, the transfer agent
                      may require that the signature on the written redemption
                      request be guaranteed. You should be able to obtain a
                      signature guarantee from a bank, broker dealer, credit
                      union, securities exchange or association, clearing agency
                      or savings association. Notaries public cannot guarantee
                      signatures. The signature guarantee requirement will be
                      waived if all of the following conditions apply: (1) the
                      redemption is for not more than $5,000 worth of Shares,
                      (2) the redemption check is payable to the shareholder(s)
                      of record, and (3) the redemption check is mailed to the
                      shareholder(s) at his or her address of record.
 
                      Telephone Transactions
 
                        You may redeem your Shares of the Balanced Fund by
                      calling the transfer agent at 1-800-433-6884. Under most
                      circumstances, payments will be transmitted on the next
                      Business Day following receipt of a valid request for
                      redemption. You may have the proceeds mailed to your
                      address or wired to a commercial bank account previously
                      designated on your Account Application. There is no charge
                      for having redemption proceeds mailed to you, but there is
                      a $15 charge for wiring redemption proceeds.
 
                        You may request a wire redemption for redemptions of
                      Shares of the Balanced Fund in excess of $500 by calling
                      the transfer agent at 1-800-433-6884 who will deduct a
                      wire charge of $15 from the amount of the wire redemption.
                      Shares cannot be redeemed by Federal Reserve wire on
                      Federal holidays restricting wire transfers.
 
                        Neither the transfer agent nor HighMark will be
                      responsible for any loss, liability, cost or expense for
                      acting upon wire or telephone instructions that it
 
                                       21
<PAGE>   324
 
                      reasonably believes to be genuine. HighMark and transfer
                      agent will each employ reasonable procedures to confirm
                      that instructions, communicated by telephone are genuine.
                      Such procedures may include taping of telephone
                      conversations.
 
                        If market conditions are extraordinarily active or other
                      extraordinary circumstances exist, and you experience
                      difficulties placing redemption orders by telephone, you
                      may consider placing your order by mail.
 
                      Systematic Withdrawal Plan ("SWP")
 
                        The Balanced Fund offers a Systematic Withdrawal Plan
                      ("SWP"), which you may use to receive regular
                      distributions from your account. Upon commencement of the
                      SWP, your account must have a current net asset value of
                      $5,000 or more. You may elect to receive automatic
                      payments via check or ACH of $100 or more on a monthly,
                      quarterly, semi-annual or annual basis. You may arrange to
                      receive regular distributions from your account via check
                      or ACH by completing this section in the Account
                      Application form.
 
                        To participate in the SWP, you must have your dividends
                      automatically reinvested. You should realize that if your
                      automatic withdrawals exceed income dividends, your
                      invested principal in the account will be depleted. Thus,
                      depending on the frequency and amounts of the withdrawal
                      payments and/or any fluctuations in the net asset value
                      per Share, your original investment could be exhausted
                      entirely. You may change or cancel the SWP at any time on
                      written notice to the transfer agent. The transfer agent
                      may require that the signature on the written notice be
                      guaranteed.
 
                        It is generally not in your best interest to be
                      participating in the SWP at the same time that you are
                      purchasing additional Shares if you have to pay a sales
                      load in connection with such purchases.
 
                      Other Information Regarding Redemptions
 
                        Shareholders who desire to redeem Shares of HighMark
                      must place their redemption orders prior to 1:00 p.m.,
                      Pacific time (4:00 p.m., Eastern time) on any Business Day
                      for the order to be accepted on that Business Day. The
                      redemption price is the net asset value of the Fund next
                      determined after receipt by the Distributor of the
                      redemption order. Payment on redemption will be made as
                      promptly as possible and, in any event, within seven
                      calendar days after the redemption order is received. The
                      Fund reserves the right to make payment for redemptions in
                      securities rather than cash.
 
                        Payment to the Shareholders for Shares redeemed will be
                      made within seven days after the transfer agent receives
                      the valid redemption request. At various times, however,
                      the Fund may be requested to redeem Shares for which it
                      has not yet received good payment; collection of payment
                      may take ten or more days. In
 
                                       22
<PAGE>   325
 
                      such circumstances, the redemption request will be
                      rejected by the Fund. Once the Fund has received good
                      payment for the Shares a Shareholder may submit another
                      request for redemption.
 
                        Due to the relatively high costs of handling small
                      investments, the Fund reserves the right to redeem your
                      Shares at net asset value if your account in the Fund has
                      a value of less than the minimum initial purchase amount.
                      Accordingly, if you purchase Shares of the Fund in only
                      the minimum investment amount, you may be subject to
                      involuntary redemption if you redeem any Shares. Before
                      the Fund exercises its right to redeem such Shares you
                      will be given notice that the value of the Shares in your
                      account is less than the minimum amount and will be
                      allowed 60 days to make an additional investment in the
                      Fund in an amount which will increase the value of the
                      account to at least the minimum amount.
 
DIVIDENDS               The net income of the Balanced Fund is declared and paid
                      monthly as a dividend to Shareholders of record at the
                      close of business on the day of declaration. Net realized
                      capital gains are distributed at least annually to
                      Shareholders of record.
 
                        Shareholders will automatically receive all income
                      dividends and capital gains distributions in additional
                      full and fractional Shares of the Fund at net asset value
                      as of the date of declaration (which is also the
                      ex-dividend date), unless the Shareholder elects to
                      receive such dividends or distributions in cash.
                      Shareholders wishing to receive their dividends in cash
                      (or wishing to revoke a previously made election) must
                      notify the transfer agent at P.O. Box 8416, Boston, MA
                      02266-8416, and such election (or revocation thereof) will
                      become effective with respect to dividends and
                      distributions having record dates after notice has been
                      received. Dividends paid in additional Shares receive the
                      same tax treatment as dividends paid in cash.
 
FEDERAL
TAXATION                The Balanced Fund intends to qualify for treatment as a
                      "regulated investment company" under the Internal Revenue
                      Code of 1986, as amended (the "Code"), and to distribute
                      substantially all of its net investment income and net
                      realized capital gains so that the Fund is not required to
                      pay federal taxes on these amounts.
 
                        Distributions of ordinary income and/or an excess of net
                      short-term capital gain over net long-term capital loss
                      are treated for federal income tax purposes as ordinary
                      income to Shareholders. The 70 percent dividends received
                      deduction for corporations generally will apply to these
                      distributions to the extent the distribution represents
                      amounts that would qualify for the dividends received
                      deduction when received by the Fund if the Fund were a
                      regular corporation, and to the extent designated by the
                      Fund as so qualifying. Distributions by the Fund of the
                      excess of net long-term capital gain over net short-term
                      capital loss is
 
                                       23
<PAGE>   326
 
                      taxable to Shareholders as long-term capital gain in the
                      year with respect to which it is received, regardless of
                      how long the Shareholder has held Shares of the Fund. Such
                      distributions are not eligible for the dividends received
                      deduction. If a Shareholder disposes of Shares in the Fund
                      at a loss before holding such Shares for longer than six
                      months, such loss will be treated as a long-term capital
                      loss to the extent the Shareholder has received long-term
                      capital gain dividends on the Shares.
 
                        Prior to purchasing Shares of the Balanced Fund, the
                      impact of dividends or capital gain distributions that are
                      expected to be declared or have been declared, but not
                      paid, should be carefully considered. Dividends or capital
                      gain distributions received after a purchase of Shares are
                      subject to federal income taxes, although in some
                      circumstances, the dividends or distributions may be, as
                      an economic matter, a return of capital to the
                      Shareholder. A Shareholder should consult his or her
                      advisor for specific advice about the tax consequences to
                      the Shareholder of investing in the Fund.
 
                        Fund investments in foreign securities may be subject to
                      withholding taxes at the source on dividend or interest
                      payments. In that case, the Fund's yield on those
                      securities would be decreased. The Fund does not expect to
                      be eligible to elect to permit shareholders to claim a
                      credit or deduction on their income tax return for their
                      pro rata share of such taxes.
 
                        Fund transactions in foreign currencies and hedging
                      activities may give rise to ordinary income or loss to the
                      extent such income or loss results from fluctuations in
                      value of the foreign currency concerned. In addition, such
                      activities will likely produce a difference between book
                      income and taxable income. This difference may cause a
                      portion of the Fund's income distributions to constitute a
                      return of capital for tax purposes or require the Fund to
                      make distributions exceeding book income to qualify as a
                      regulated investment company for tax purposes.
 
                        Investment in an entity that qualifies as a "passive
                      foreign investment company" under the Code could subject
                      the Fund to a U.S. federal income tax or other charge on
                      certain "excess distributions" received with respect to
                      the investment, and on the proceeds from disposition of
                      the investment.
 
                        Additional information regarding federal taxes is
                      contained in the Statement of Additional Information.
                      However, the foregoing and the material in the Statement
                      of Additional Information are only brief summaries of some
                      of the important tax considerations generally affecting
                      the Fund and its Shareholders. In addition, the foregoing
                      discussion and the federal tax information in the
                      Statement of Additional Information are based on tax laws
                      and regulations which are in effect as of the date of this
                      Prospectus; these laws and regulations may subsequently
                      change, and such changes could be retroactive.
 
                                       24
<PAGE>   327
 
                        Shareholders will be advised at least annually as to the
                      federal income tax status of distributions made during the
                      year.
 
SERVICE
ARRANGEMENTS          The Advisor
 
                        Pacific Alliance Capital Management, a division of Union
                      Bank of California, N.A., serves as the Balanced Fund's
                      investment advisor. Subject to the general supervision of
                      HighMark's Board of Trustees, the Advisor manages the Fund
                      in accordance with its investment objective and policies,
                      makes decisions with respect to and places orders for all
                      purchases and sales of the Fund's investment securities,
                      and maintains the Fund's records relating to such
                      purchases and sales.
 
                        For the expenses assumed and services provided by the
                      Advisor as the Fund's investment advisor, Union Bank of
                      California receives a fee from the Balanced Fund, computed
                      daily and paid monthly, at the annual rate of sixty one-
                      hundredths of one percent (.60%) of the Fund's average
                      daily net assets. This fee may be higher than the advisory
                      fee paid by most mutual funds, although the Board of
                      Trustees believes it will be comparable to advisory fees
                      paid by many funds having similar objectives and policies.
                      Union Bank of California may from time to time agree to
                      voluntarily reduce its advisory fee, however, it is not
                      currently doing so. While there can be no assurance that
                      Union Bank of California will choose to make such an
                      agreement, any voluntary reductions in Union Bank of
                      California's advisory fee will lower the Fund's expenses,
                      and thus increase the Fund's yield and total return,
                      during the period such voluntary reductions are in effect.
                      During HighMark's fiscal year ended July 31, 1996, Union
                      Bank of California received investment advisory fees from
                      the Balanced Fund aggregating 0.54% of the Fund's average
                      daily net assets.
 
                        On April 1, 1996, the Bank of California, N.A.,
                      HighMark's then investment advisor, combined with Union
                      Bank and the resulting bank changed its name to Union Bank
                      of California, N.A. At the same time, the banks'
                      investment management divisions were combined. Each of
                      Union Bank and The Bank of California, N.A. (or their
                      predecessor banks) has been in banking since the early
                      1900's and, historically, each has had significant
                      investment functions within its trust and investment
                      division. UnionBanCal Corporation, the parent of Union
                      Bank of California, N.A., is a publicly held corporation,
                      but is principally held by The Bank of Tokyo-Mitsubishi,
                      Ltd. As of September 30, 1996, Union Bank of California
                      and its subsidiaries had approximately $28.7 billion in
                      commercial assets. Pacific Alliance Capital Management is
                      a division of Union Bank of California's Trust and
                      Investment Management Group which, as of June 30, 1996,
                      had approximately 13.4 billion of assets under management.
                      The Advisor, with a team of approximately 45 stock and
                      bond research analysts, portfolio
 
                                       25
<PAGE>   328
 
                      managers and traders, has been providing investment
                      management services to individuals, institutions and large
                      corporations since 1917.
 
                        All investment decisions for the Balanced Fund are made
                      by a team of investment professionals, all of whom take an
                      active part in the decision making process. The team
                      leader for the Balanced Fund is Carl J. Colombo. Mr.
                      Colombo is a Vice President of the Advisor, and has served
                      as team leader for the Stepstone Balanced and Growth
                      Equity Funds. Mr. Colombo has been with the Advisor and
                      its predecessor, Union Bank, since 1985.
 
                      Administrator
 
                        SEI Fund Resources (the "Administrator") and HighMark
                      are parties to an administration agreement (the
                      "Administration Agreement"). Under the terms of the
                      Administration Agreement, the Administrator provides
                      HighMark with certain management services, including all
                      necessary office space, equipment, personnel, and
                      facilities.
 
                        The Administrator is entitled to a fee, which is
                      calculated daily and paid monthly, at an annual rate of
                      .20% of the average daily net assets of the Funds. The
                      Administrator may waive its fee or reimburse various
                      expenses to the extent necessary to limit the total
                      operating expenses of a Fund's Retail Shares. Any such
                      waiver is voluntary and may be terminated at any time in
                      the Administrator's sole discretion. Currently, the
                      Administrator has agreed to waive its fee to the rate of
                      .18% of the average daily net assets of the Funds.
 
                        Pursuant to a separate agreement with the Administrator,
                      Union Bank of California, N.A. performs sub-administration
                      services on behalf of the Fund, for which it receives a
                      fee paid by the Administrator at the annual rate of up to
                      0.05% of the average daily net assets of the Fund. Union
                      Bank of California has voluntarily agreed to reduce this
                      fee to 0.03%, but reserves the right to terminate its
                      waiver at any time in its sole discretion. A description
                      of the services performed by Union Bank of California
                      pursuant to this Agreement is contained in the Statement
                      of Additional Information.
 
                      The Transfer Agent
 
                        State Street Bank and Trust Company serves as the
                      transfer agent, dividend disbursing agent, and as a
                      shareholder servicing agent for the Retail Shares of
                      HighMark for which services it receives a fee.
 
                      Shareholder Service Plan
 
                        To support the provision of Shareholder services to both
                      classes of Shares, HighMark has adopted a Shareholder
                      Service Plan. A description of the services performed by
                      service providers pursuant to the Shareholder Service Plan
                      is
 
                                       26
<PAGE>   329
 
                      contained in the Statement of Additional Information. In
                      consideration of services provided by any service
                      provider, which may include Union Bank of California,
                      N.A., Bank of Tokyo-Mitsubishi, Ltd., or their respective
                      affiliates, the Fund may pay a fee at the rate of up to
                      0.25% of its average daily net assets to such service
                      provider. The service provider may waive such fees at any
                      time. Any such waiver is voluntary and may be terminated
                      at any time. Currently, such fees are being waived to the
                      rate of 0.09% of average daily net assets.
 
                      Distributor
 
                        SEI Financial Services Company (the "Distributor") and
                      HighMark are parties to a distribution agreement
                      ("Distribution Agreement"). The Distribution Agreement is
                      renewable annually and may be terminated by the
                      Distributor, by a majority vote of the Disinterested
                      Trustees or by a majority vote of the outstanding
                      securities of HighMark upon not more than 60 days written
                      notice by either party, or upon assignment by the
                      Distributor.
 
                      The Distribution Plan
 
                        Pursuant to HighMark's Distribution Plan, the Balanced
                      Fund pays the Distributor as compensation for its services
                      in connection with the Distribution Plan a distribution
                      fee, computed daily and paid monthly, equal to twenty-five
                      one-hundredths of one percent (0.25%) of the average daily
                      net assets attributable to the Fund's Retail Shares.
 
                        The Distributor may use the distribution fee applicable
                      to the Fund's Retail Shares to provide distribution
                      assistance with respect to the sale of the Fund's Retail
                      Shares or to provide Shareholder services to the holders
                      of the Fund's Retail Shares. The Distributor may also use
                      the distribution fee (i) to pay financial institutions and
                      intermediaries (such as insurance companies and investment
                      counselors but not including banks and savings and loan
                      associations), broker-dealers, and the Distributor's
                      affiliates and subsidiaries compensation for services or
                      reimbursement of expenses incurred in connection with the
                      distribution of the Fund's Retail Shares to their
                      customers or (ii) to pay banks, savings and loan
                      associations, other financial institutions and
                      intermediaries, broker-dealers, and the Distributor's
                      affiliates and subsidiaries compensation for services or
                      reimbursement of expenses incurred in connection with the
                      provision of Shareholder services to their customers
                      owning the Fund's Retail Shares. All payments by the
                      Distributor for distribution assistance or Shareholder
                      services under the Distribution Plan will be made pursuant
                      to an agreement between the Distributor and such bank,
                      savings and loan association, other financial institution
                      or intermediary, broker-dealer, or affiliate or subsidiary
                      of the Distributor (a "Servicing Agreement"; banks,
                      savings and loan associations, other financial
                      institutions and intermediaries, broker-dealers, and the
                      Distributor's affiliates and
 
                                       27
<PAGE>   330
 
                      subsidiaries that may enter into a Servicing Agreement are
                      hereinafter referred to individually as a "Participating
                      Organization"). A Participating Organization may include
                      Union Bank of California, its subsidiaries and its
                      affiliates.
 
                        Participating Organizations may charge customers fees in
                      connection with investments in the Balanced Fund on their
                      customers' behalf. Such fees would be in addition to any
                      amounts the Participating Organization may receive
                      pursuant to its Servicing Agreement. Under the terms of
                      the Servicing Agreements, Participating Organizations are
                      required to provide their customers with a schedule of
                      fees charged directly to such customers in connection with
                      investments in the Fund. Customers of Participating
                      Organizations should read this Prospectus in light of the
                      terms governing their accounts with the Participating
                      Organization.
 
                        The distribution fee under the Distribution Plan will be
                      payable without regard to whether the amount of the fee is
                      more or less than the actual expenses incurred in a
                      particular year by the Distributor in connection with
                      distribution assistance or Shareholder services rendered
                      by the Distributor itself or incurred by the Distributor
                      pursuant to the Servicing Agreements entered into under
                      the Distribution Plan. The Distributor may from time to
                      time voluntarily reduce its distribution fee with respect
                      to the Balanced Fund in significant amounts for
                      substantial periods of time pursuant to an agreement with
                      HighMark. While there can be no assurance that the
                      Distributor will choose to make such an agreement, any
                      voluntary reduction in the Distributor's distribution fee
                      will lower the Balanced Fund's expenses, and thus increase
                      the Fund's yield and total returns, during the period such
                      voluntary reductions are in effect.
 
                      Banking Laws
 
                        Union Bank of California believes that it may perform
                      the services for the Fund contemplated by its investment
                      advisory agreement with HighMark without a violation of
                      applicable banking laws and regulations. Union Bank of
                      California also believes that it may perform
                      sub-administration and sub-accounting services on behalf
                      of the Fund, without a violation of applicable banking
                      laws and regulations. Future changes in federal or state
                      statutes and regulations relating to permissible
                      activities of banks or bank holding companies and their
                      subsidiaries and affiliates, as well as further judicial
                      or administrative decisions or interpretations of present
                      and future statutes and regulations, could change the
                      manner in which Union Bank of California or the Advisor
                      could continue to perform such services for the Fund. For
                      a further discussion of applicable banking laws and
                      regulations, see the Statement of Additional Information.
 
                                       28
<PAGE>   331
 
                      Custodian
 
                        Union Bank of California also serves as the custodian
                      and as a shareholder servicing agent for the Balanced
                      Fund. The Custodian holds cash, securities and other
                      assets of HighMark as required by the 1940 Act.
 
                        Services performed by Union Bank of California, as the
                      Fund's shareholder servicing agent and custodian, as well
                      as the basis of remuneration for such services, are
                      described in the Statement of Additional Information.
 
GENERAL
INFORMATION           Description of HighMark & Its Shares
 
                        HighMark was organized as a Massachusetts business trust
                      on March 10, 1987, and consists of sixteen series of
                      Shares open for investment representing units of
                      beneficial interest in HighMark's Growth Fund, Income
                      Equity Fund, Balanced Fund, Value Momentum Fund, Blue Chip
                      Growth Fund, Emerging Growth Fund, International Equity
                      Fund, Bond Fund, Intermediate-Term Bond Fund, Government
                      Securities Fund, Convertible Securities Fund, California
                      Intermediate Tax-Free Bond Fund, Diversified Money Market
                      Fund, U.S. Government Obligations Money Market Fund, 100%
                      U.S. Treasury Obligations Money Market Fund, and
                      California Tax-Free Money Market Fund. As of the date
                      hereof, no Shares of the Value Momentum Fund, the Blue
                      Chip Growth Fund, the Emerging Growth Fund, the
                      International Equity Fund, the Intermediate-Term Bond
                      Fund, the Convertible Securities Fund, the Government
                      Securities Fund and the California Intermediate TaxFree
                      Bond Fund had been offered for sale in HighMark Funds.
                      Shares of each Fund are freely transferable, are entitled
                      to distributions from the assets of the Fund as declared
                      by the Board of Trustees, and, if HighMark were
                      liquidated, would receive a pro rata share of the net
                      assets attributable to that Fund. Shares are without par
                      value.
 
                        As noted above, pursuant to a Multiple Class Plan on
                      file with the Securities and Exchange Commission
                      permitting the issuance and sale of two classes of Shares
                      in selected Funds, Shares of such Funds have been divided
                      into two classes, designated Retail Shares and Fiduciary
                      Shares. For information regarding the Fiduciary Shares of
                      the Balanced Fund, interested persons may contact the
                      Distributor for a prospectus at 1-800-433-6884.
 
                        HighMark believes that as of November 22, 1996 there was
                      no person who owned of record or beneficially more than
                      25% of the Retail Shares of the Balanced Fund.
 
                      Performance Information
 
                        From time to time, HighMark may advertise the aggregate
                      total return, average annual total return, yield and
                      distribution rate with respect to the Retail
 
                                       29
<PAGE>   332
 
                      Shares of the Balanced Fund. Performance information is
                      computed separately for the Fund's Retail and Fiduciary
                      Shares in accordance with the formulas described below.
 
                        The aggregate total return and average annual total
                      return of the Fund may be quoted for the life of the Fund
                      and for ten-year, five-year, three-year and one-year
                      periods, in each case through the most recent calendar
                      quarter. Aggregate total return is determined by
                      calculating the change in the value of a hypothetical
                      $1,000 investment in the Fund over the applicable period
                      that would equate the initial amount invested to the
                      ending redeemable value of the investment. The ending
                      redeemable value includes dividends and capital gain
                      distributions reinvested at net asset value. Average
                      annual total return is calculated by annualizing the
                      Fund's aggregate total return over the relevant number of
                      years. The resulting percentage indicates the average
                      positive or negative investment results that an investor
                      in the Fund would have experienced on an annual basis from
                      changes in Share price and reinvestment of dividends and
                      capital gain distributions.
 
                        The yield of the Fund is determined by annualizing the
                      net investment income per Share of the Fund during a
                      specified thirty-day period and dividing that amount by
                      the per Share public offering price of the Fund on the
                      last day of the period.
 
                        The distribution rate of the Fund is determined by
                      dividing the income and capital gains distributions, or
                      where indicated the income distributions alone, on a Share
                      of the Fund over a twelve-month period by the per Share
                      public offering price of the Fund on the last day of the
                      period.
 
                        Each Fund may periodically compare its performance to
                      the performance of other mutual funds tracked by mutual
                      fund rating services (such as Lipper Analytical);
                      financial and business publications and periodicals; broad
                      groups of comparable mutual funds; unmanaged indices which
                      may assume investment of dividends but generally do not
                      reflect deductions for administrative and management
                      costs; or other investment alternatives. Certain Funds may
                      advertise performance that includes results from periods
                      in which the Fund's assets were managed in a nonregistered
                      predecessor vehicle.
 
                        All performance information presented for the Fund is
                      based on past performance and does not predict future
                      performance.
 
                      Miscellaneous
 
                        Shareholders will be sent unaudited semi-annual reports
                      and annual reports audited by independent public
                      accountants.
 
                        Shareholders are entitled to one vote for each Share
                      held in a Fund as determined on the record date for any
                      action requiring a vote by the Shareholders,
 
                                       30
<PAGE>   333
 
                      and a proportionate fractional vote for each fractional
                      Share held. Shareholders of HighMark will vote in the
                      aggregate and not by series or class except (i) as
                      otherwise expressly required by law or when HighMark's
                      Board of Trustees determines that the matter to be voted
                      upon affects only the interests of the Shareholders of a
                      particular series or particular class, and (ii) only
                      Retail Shares will be entitled to vote on matters
                      submitted to a Shareholder vote relating to the
                      Distribution Plan. HighMark is not required to hold
                      regular annual meetings of Shareholders, but may hold
                      special meetings from time to time.
 
                        HighMark's Trustees are elected by Shareholders, except
                      that vacancies may be filled by vote of the Board of
                      Trustees. Trustees may be removed by the Board of
                      Trustees, or by Shareholders at a meeting called for such
                      purpose. For information about how Shareholders may call
                      such a meeting and communicate with other Shareholders for
                      that purpose, see ADDITIONAL INFORMATION--Miscellaneous in
                      the Statement of Additional Information.
 
                        Inquiries may be directed in writing to SEI Financial
                      Services Company, Oaks, Pennsylvania 19456, or by calling
                      toll free 1-800-433-6884.
 
DESCRIPTION OF
PERMITTED
INVESTMENTS             The following is a description of permitted investments
                      for the HighMark Balanced Fund.
 
                        AMERICAN DEPOSITARY RECEIPTS (ADRs)--ADRs are receipts
                      typically issued by a U.S. financial institution that
                      evidence ownership of underlying securities issued by a
                      foreign issuer.
 
                        ASSET-BACKED SECURITIES (NON-MORTGAGE)--Instruments
                      secured by company receivables, truck and auto loans,
                      leases, and credit card receivables. Such securities are
                      generally issued as pass-through certificates, which
                      represent undivided fractional ownership interests in the
                      underlying pools of assets. Such securities also may be
                      debt instruments, which are also known as collateralized
                      obligations and are generally issued as the debt of a
                      special purpose entity, such as a trust, organized solely
                      for the purpose of owning such assets and issuing such
                      debt. The purchase of non-mortgage asset-backed securities
                      raises risk considerations peculiar to the financing of
                      the instruments underlying such securities. Asset-backed
                      securities entail prepayment risk, which may vary
                      depending on the type of asset, but is generally less than
                      the prepayment risk associated with mortgage-backed
                      securities.
 
                        Like mortgages underlying mortgage-backed securities,
                      underlying automobile sales contracts or credit card
                      receivables are subject to substantial prepayment risk,
                      which may reduce the overall return to certificate
                      holders. Nevertheless, principal prepayment rates tend not
                      to vary as much in response to changes in interest rates
                      and the short-term nature of the underlying car loans or
                      other
 
                                       31
<PAGE>   334
 
                      receivables tend to dampen the impact of any change in the
                      prepayment level. Certificate holders may also experience
                      delays in payment on the certificates if the full amounts
                      due on underlying sales contracts or receivables are not
                      realized by the trust because of unanticipated legal or
                      administrative costs of enforcing the contracts or because
                      of depreciation or damage to the collateral (usually
                      automobiles) securing certain contracts, or other factors.
                      If consistent with their investment objectives and
                      policies, the Fund may invest in other asset-backed
                      securities that may be developed in the future.
 
                        BANKERS' ACCEPTANCES--Bills of exchange or time drafts
                      drawn on and accepted by commercial banks. They are used
                      by corporations to finance the shipment and storage of
                      goods and to furnish dollar exchange. Maturities are
                      generally six months or less.
 
                        CERTIFICATES OF DEPOSIT--Negotiable interest-bearing
                      instruments with a specific maturity. Certificates of
                      deposit are issued by banks and savings and loan
                      institutions in exchange for the deposit of funds and
                      normally can be traded in the secondary market prior to
                      maturity.
 
                        COMMERCIAL PAPER--Unsecured short-term promissory notes
                      issued by corporations and other entities. Maturities on
                      these issues vary from a few days to nine months. Purchase
                      of such instruments involves a risk of default by the
                      issuer.
 
                        CONVERTIBLE BONDS AND CONVERTIBLE PREFERRED
                      STOCK--Convertible Bonds are bonds convertible into a set
                      number of shares of another form of security (usually
                      common stock) at a prestated price. Convertible bonds have
                      characteristics similar to both fixed-income and equity
                      securities. Convertible preferred stock is a class of
                      capital stock that pays dividends at a specified rate and
                      that has preference over common stock in the payment of
                      dividends and the liquidation of assets. Convertible
                      preferred stock is preferred stock exchangeable for a
                      given number of common stock shares, and has
                      characteristics similar to both fixed-income and equity
                      securities. Because of the conversion feature, the market
                      value of convertible bonds and convertible preferred stock
                      tend to move together with the market value of the
                      underlying stock. As a result, a Fund's selection of
                      convertible bonds and convertible preferred stock is
                      based, to a great extent, on the potential for capital
                      appreciation that may exist in the underlying stock. The
                      value of convertible bonds and convertible preferred stock
                      is also affected by prevailing interest rates, the credit
                      quality of the issuer and any call provisions.
 
                        DERIVATIVES--Instruments whose value is derived from an
                      underlying contract, index or security, or any combination
                      thereof, including futures, options (e.g., puts and
                      calls), options on futures, swap agreements, and some
                      mortgage-backed securities (CMOs, REMICs, IOs and POs).
                      See elsewhere in this
 
                                       32
<PAGE>   335
 
                      "DESCRIPTION OF PERMITTED INVESTMENTS" for discussions of
                      these various instruments, and see "INVESTMENT OBJECTIVES"
                      and "INVESTMENT POLICIES" for more information about any
                      policies and limitations applicable to their use.
 
                        FUTURES AND OPTIONS ON FUTURES--Some futures strategies,
                      including selling futures, buying puts and writing calls,
                      reduce a Fund's exposure to price fluctuations. Other
                      strategies, including buying futures, writing puts and
                      buying calls, tend to increase market exposure. Futures
                      and options may be combined with each other in order to
                      adjust the risk and return characteristics of the overall
                      portfolio.
 
                        Options and futures can be volatile instruments, and
                      involve certain risks that, if applied at an inappropriate
                      time, could negatively impact a Fund's return.
 
                        INVESTMENT GRADE BONDS--Interest-bearing or discounted
                      government or corporate securities that obligate the
                      issuer to pay the bondholder a specified sum of money,
                      usually at specific intervals, and to repay the principal
                      amount of the loan at maturity. Investment grade bonds are
                      those rated BBB or better by S&P or Baa or better by
                      Moody's or similarly rated by other NRSROs, or, if not
                      rated, determined to be of comparable quality by the
                      Advisor.
 
                        MONEY MARKET INSTRUMENTS--Short-term, debt instruments
                      or deposits and may include, for example, (i) commercial
                      paper rated within the highest rating category by a NRSRO
                      at the time of investment, or, if not rated, determined by
                      the Advisor to be of comparable quality; (ii) obligations
                      (certificates of deposit, time deposits, bank master
                      notes, and bankers' acceptances) of thrift institutions,
                      savings and loans, U.S. commercial banks (including
                      foreign branches of such banks), and U.S. and foreign
                      branches of foreign banks, provided that such institutions
                      (or, in the case of a branch, the parent institution) have
                      total assets of $1 billion or more as shown on their last
                      published financial statements at the time of investment;
                      (iii) short-term corporate obligations rated within the
                      three highest rating categories by a NRSRO (e.g., at least
                      A by S&P or A by Moody's) at the time of investment, or,
                      if not rated, determined by the Advisor to be of
                      comparable quality; (iv) general obligations issued by the
                      U.S. Government and backed by its full faith and credit,
                      and obligations issued or guaranteed as to principal and
                      interest by agencies or instrumentalities of the U.S.
                      Government (e.g., obligations issued by Farmers Home
                      Administration, Government National Mortgage Association,
                      Federal Farm Credit Bank and Federal Housing
                      Administration); (v) receipts, including TRs, TIGRs and
                      CATS; (vi) repurchase agreements involving such
                      obligations; (vii) loan participations issued by a bank in
                      the United States with assets exceeding $1 billion and for
                      which the underlying loan is issued by borrowers in whose
                      obligations the Fund may invest; (viii) money market funds
                      and (ix) foreign commercial paper.
 
                                       33
<PAGE>   336
 
                        Certain of the obligations in which a Fund may invest
                      may be variable or floating rate instruments, may involve
                      conditional or unconditional demand features and may
                      include variable amount master demand notes.
 
                        MORTGAGE-BACKED SECURITIES--Securities generally issued
                      or guaranteed by U.S. government agencies such as GNMA,
                      FNMA, or FHLMC. GNMA mortgage-backed certificates are
                      mortgage-backed securities of the modified pass-through
                      type, which means that both interest and principal
                      payments (including prepayments) are passed through
                      monthly to the holder of the certificate. Each GNMA
                      certificate evidences an interest in a specific pool of
                      mortgage loans insured by the Federal Housing
                      Administration or the Farmers Home Administration or
                      guaranteed by the Veterans Administration. FNMA, a
                      federally-chartered and stockholder-owned corporation,
                      issues pass-through certificates which are guaranteed as
                      to payment of principal and interest by FNMA. FHLMC, a
                      corporate instrumentality of the United States, issues
                      participation certificates which represent an interest in
                      mortgages held in FHLMC's portfolio. FHLMC guarantees the
                      timely payment of interest and the ultimate collection of
                      principal. Securities issued or guaranteed by FNMA and
                      FHLMC are not backed by the full faith and credit of the
                      United States. There can be no assurance that the U.S.
                      government would provide financial support to FNMA or
                      FHLMC if necessary in the future.
 
                        Although payments on certain mortgage-related securities
                      may be guaranteed by a third party or otherwise similarly
                      secured, the market value of such securities is not
                      secured and may fluctuate significantly because of changes
                      in interest rates and changes in prepayment levels. Thus,
                      for example, if a Fund purchases a mortgage-related
                      security at a premium, that portion may be lost if there
                      is a decline in the market value of the security whether
                      due to changes in interest rates or prepayments of the
                      underlying mortgage collateral. As with other
                      interest-bearing securities, the prices of
                      mortgage-related securities are inversely affected by
                      changes in interest rates. However, although the value of
                      a mortgage-related security may decline when interest
                      rates rise, the converse is not necessarily true because
                      in periods of declining interest rates the mortgages
                      underlying the securities are prone to prepayment which
                      results in amounts being available for reinvestment which
                      are likely to be invested at a lower interest rate. For
                      this and other reasons, the stated maturity of a
                      mortgage-related security may be shortened by unscheduled
                      prepayments on the underlying mortgages and, accordingly,
                      it is not possible to predict accurately the security's
                      return to a Fund. In addition, regular payments received
                      on mortgage-related securities include both interest and
                      principal. No assurance can be given as to the return a
                      Fund will receive when these amounts are reinvested. As a
                      consequence, mortgage-related securities may be a less
                      effective means of "locking in" interest rates than other
 
                                       34
<PAGE>   337
 
                      types of debt securities having the same stated maturity,
                      may have less potential for capital appreciation and may
                      be considered riskier investments as a result.
 
                        Adjustable rate mortgage securities ("ARMS") are
                      pass-through certificates representing ownership interests
                      in a pool of adjustable rate mortgages and the resulting
                      cash flow from those mortgages. Unlike conventional debt
                      securities, which provide for periodic (usually
                      semi-annual) payments of interest and payments of
                      principal at maturity or on specified call dates, ARMs
                      provide for monthly payments based on a pro rata share of
                      both periodic interest and principal payments and
                      prepayments of principal on the underlying mortgage pool
                      (less GNMA's, FNMA's, or FHLMC's fees and any applicable
                      loan servicing fees).
 
                        Collateralized mortgage obligations ("CMOs") are bonds
                      generally issued by single purpose, stand-alone finance
                      subsidiaries or trusts established by financial
                      institutions, government agencies, investment banks, or
                      other similar institutions, and collateralized by pools of
                      mortgage loans. Payments of principal and interest on the
                      collateral mortgages are used to pay debt service on the
                      CMO. In a CMO, a series of bonds or certificates is issued
                      in multiple classes. Each class of CMOs, often referred to
                      as a "tranche," is issued at a specific coupon rate and
                      has a stated maturity or final distribution date. The
                      principal and interest payment on the underlying mortgages
                      may be allocated among the classes of CMOs in several
                      ways. Typically, payments of principal, including any
                      prepayments, on the underlying mortgages would be applied
                      to the classes in the order of their respective stated
                      maturities or final distribution dates, so that no payment
                      of principal will be made on CMOs of a class until all
                      CMOs of other classes having earlier stated maturities or
                      final distribution dates have been paid in full.
 
                        One or more classes of CMOs may have coupon rates that
                      reset periodically based on an index, such as the London
                      Interbank Offered Rate ("LIBOR"). Each Fund may purchase
                      fixed, adjustable, or "floating" rate CMOs that are
                      collateralized by fixed rate or adjustable rate mortgages
                      that are guaranteed as to payment of principal and
                      interest by an agency or instrumentality of the U.S.
                      government or are directly guaranteed as to payment of
                      principal and interest by the issuer, which guarantee is
                      collateralized by U.S. government securities or is
                      collateralized by privately issued fixed rate or
                      adjustable rate mortgages.
 
                        Securities such as zero-coupon obligations,
                      mortgage-backed and asset-backed securities, and
                      collateralized mortgage obligations ("CMOs") will have
                      greater price volatility then other fixed-income
                      obligations. Because declining interest rates may lead to
                      prepayment of underlying mortgages, automobile sales
                      contracts or credit card receivables, the prices of
                      mortgage-related and asset-backed securities may not rise
                      with a decline in interest rates. Mortgage-backed and
                      asset-backed securities and CMOs are extremely sensitive
                      to the rate of principal
 
                                       35
<PAGE>   338
 
                      prepayment. Similarly, callable corporate bonds also
                      present risk of prepayment. During periods of falling
                      interest rates, securities that can be called or prepaid
                      may decline in value relative to similar securities that
                      are not subject to call or prepayment.
 
                        Real Estate Mortgage Investment Conduits ("REMICs") are
                      private entities formed for the purpose of holding a fixed
                      pool of mortgages secured by an interest in real property.
                      REMICs are similar to CMOs in that they issue multiple
                      classes of securities.
 
                        OPTIONS--Under a call option, the purchaser of the
                      option has the right to purchase, and the writer (the
                      Fund) the obligation to sell, the underlying security at
                      the exercise price during the option period. A put option
                      gives the purchaser the right to sell, and the writer the
                      obligation to purchase, the underlying security at the
                      exercise price during the option period.
 
                        In addition, certain Funds may buy options on stock
                      indices to invest cash on an interim basis. Such options
                      will be listed on a national securities exchange. In order
                      to close out an option position, a Fund may enter into a
                      "closing purchase transaction"--the purchase of an option
                      on the same security with the same exercise price and
                      expiration date as the option contract previously written
                      on any particular security. When the security is sold, a
                      Fund effects a closing purchase transaction so as to close
                      out any existing option on that security.
 
                        There are risks associated with such investments
                      including the following: (1) the success of a hedging
                      strategy may depend on the ability of the Advisor or
                      Sub-Advisor to predict movements in the prices of
                      individual securities, fluctuations in markets and
                      movements in interest rates; (2) there may be an imperfect
                      correlation between the movement in prices of securities
                      held by a Fund and the price of options; (3) there may not
                      be a liquid secondary market for options; and (4) while a
                      Fund will receive a premium when it writes covered call
                      options, it may not participate fully in a rise in the
                      market value of the underlying security.
 
                        RECEIPTS--Interests in separately traded interest and
                      principal component parts of U.S. Treasury obligations
                      that are issued by banks and brokerage firms and are
                      created by depositing Treasury notes and Treasury bonds
                      into a special account at a custodian bank. The custodian
                      holds the interest and principal payments for the benefit
                      of the registered owners of the certificates of such
                      receipts. The custodian arranges for the issuance of the
                      certificates or receipts evidencing ownership and
                      maintains the register. Receipts include "Treasury
                      Receipts" ("TR's"), "Treasury Investment Growth Receipts"
                      ("TIGR's"), and "Certificates of Accrual on Treasury
                      Securities" ("CATS"). TR's, TIGR's and CATS are sold as
                      zero coupon securities, which means that they are sold at
                      a substantial discount and redeemed at face value at their
                      maturity date without
 
                                       36
<PAGE>   339
 
                      interim cash payments of interest or principal. This
                      discount is accreted over the life of the security, and
                      such accretion will constitute the income earned on the
                      security for both accounting and tax purposes. Because of
                      these features, such securities may be subject to greater
                      interest rate volatility than interest-paying securities.
                      See also "FEDERAL TAXATION."
 
                        REPURCHASE AGREEMENTS--Agreements whereby a Fund will
                      acquire securities from approved financial institutions or
                      registered broker-dealers that agree to repurchase the
                      securities at a mutually agreed-upon date and price. The
                      repurchase agreements entered into by the Funds will
                      provide that the underlying security at all times shall
                      have a value equal to 102% of the resale price stated in
                      the agreement. Repurchase agreements involving government
                      securities are not subject to a Fund's fundamental
                      investment limitation on purchasing securities of any one
                      issuer. If the seller defaults on its repurchase
                      obligation or becomes insolvent, the Fund holding such
                      obligations would suffer a loss to the extent that either
                      the proceeds from a sale of the underlying portfolio
                      securities were less than the repurchase price or the
                      Fund's disposition of the securities was delayed pending
                      court action. Securities subject to repurchase agreements
                      will be held by a qualified custodian or in the Federal
                      Reserve/Treasury book-entry system. Repurchase agreements
                      are considered to be loans by a Fund under the Investment
                      Company Act of 1940 (the "1940 Act").
 
                        REVERSE REPURCHASE AGREEMENTS--A Fund may borrow funds
                      for temporary purposes by entering into reverse repurchase
                      agreements, provided such action is consistent with the
                      Fund's investment objective and fundamental investment
                      restrictions; as a matter of non-fundamental policy, each
                      Fund intends to limit such investments to no more than 10%
                      of the value of its total assets. Pursuant to a reverse
                      repurchase agreement, a Fund will sell portfolio
                      securities to financial institutions such as banks or to
                      broker-dealers, and agree to repurchase the securities at
                      a mutually agreed-upon date and price. A Fund intends to
                      enter into reverse repurchase agreements only to avoid
                      otherwise selling securities during unfavorable market
                      conditions to meet redemptions. At the time a Fund enters
                      into a reverse repurchase agreement, it will place in a
                      segregated custodial account assets such as U.S.
                      Government securities or other liquid, high-quality debt
                      securities consistent with the Fund's investment objective
                      having a value equal to 102% of the repurchase price
                      (including accrued interest), and will subsequently
                      monitor the account to ensure that an equivalent value is
                      maintained. Reverse repurchase agreements involve the risk
                      that the market value of the securities sold by a Fund may
                      decline below the price at which a Fund is obligated to
                      repurchase the securities. Reverse repurchase agreements
                      are considered to be borrowings by a Fund under the 1940
                      Act.
 
                                       37
<PAGE>   340
 
                        RULE 144A SECURITIES--Rule 144A Securities are
                      securities that have not been registered under the
                      Securities Act of 1933, but which may be traded between
                      certain qualified institutional investors, including
                      investment companies. The absence of a secondary market
                      may affect the value of the Rule 144A Securities. The
                      Board of Trustees of HighMark has established guidelines
                      and procedures to be utilized to determine the liquidity
                      of such securities.
 
                        SECURITIES ISSUED ON A FORWARD COMMITMENT BASIS OR
                      WHEN-ISSUED SECURITIES--Securities purchased for delivery
                      beyond the normal settlement date at a stated price and
                      yield and which thereby involve a risk that the yield
                      obtained in the transaction will be less than that
                      available in the market when delivery takes place. When a
                      Fund agrees to purchase when-issued securities or enter
                      into forward commitments, HighMark's custodian will be
                      instructed to set aside cash or liquid portfolio
                      securities equal to the amount of the commitment in a
                      segregated account. A Fund will generally not pay for such
                      securities and no income will accrue on the securities
                      until they are received. These securities are recorded as
                      an asset and are subject to changes in value based upon
                      changes in the general level of interest rates. Therefore,
                      the purchase of securities on a "when-issued" basis or
                      forward commitments may increase the risk of fluctuations
                      in a Fund's net asset value.
 
                        SECURITIES LENDING--During the time portfolio securities
                      are on loan from a Fund, the borrower will pay the Fund
                      any dividends or interest paid on the securities. In
                      addition, loans will be subject to termination by the Fund
                      or the borrower at any time and, while a Fund will
                      generally not have the right to vote securities on loan,
                      it will terminate the loan and regain the right to vote if
                      that is considered important with respect to the
                      investment. While the lending of securities may subject a
                      Fund to certain risks, such as delays or an inability to
                      regain the securities in the event the borrower were to
                      default on its lending agreement or enter into bankruptcy,
                      a Fund will receive 100% collateral in the form of cash or
                      U.S. Government securities. This collateral will be valued
                      daily by the lending agent, with oversight by the Advisor,
                      and, should the market value of the loaned securities
                      increase, the borrower will be required to furnish
                      additional collateral to the Fund.
 
                        SECURITIES SUBJECT TO A PUT FEATURE--A "put" feature
                      permits a Fund to sell a fixed income security at a fixed
                      price prior to maturity. The underlying fixed income
                      securities subject to a put may be sold at any time at the
                      market rates. However, unless the put was an integral part
                      of the fixed income security as originally issued, it may
                      not be marketable or assignable. Generally, a premium is
                      paid for a put feature or a put feature is purchased
                      separately which results in a lower yield than would
                      otherwise be available for the same fixed income
                      securities.
 
                                       38
<PAGE>   341
 
                        STANDARD & POOR'S DEPOSITARY RECEIPTS (SPDRs)--SPDRs are
                      interests in a unit investment trust holding a portfolio
                      of securities linked to the S&P 500 Index. SPDRs closely
                      track the underlying portfolio of securities, trade like a
                      share of common stock and pay periodic dividends
                      proportionate to those paid by the portfolio of stocks
                      that constitutes the S&P 500 Index. For further
                      information regarding SPDRs, see the Statement of
                      Additional Information.
 
                        TAX-EXEMPT COMMERCIAL PAPER--Commercial paper, which is
                      commercial paper issued by governments and political
                      subdivisions.
 
                        TIME DEPOSITS--Non-negotiable receipts issued by U.S. or
                      foreign banks in exchange for the deposit of funds. Like
                      certificates of deposit, they earn a specified rate of
                      interest over a definite period of time; however, they
                      cannot be traded in the secondary market. Time deposits
                      with a withdrawal penalty are considered to be illiquid
                      securities.
 
                        U.S. GOVERNMENT AGENCY SECURITIES--Certain Federal
                      agencies have been established as instrumentalities of the
                      U.S. Government to supervise and finance certain types of
                      activities. Issues of these agencies, while not direct
                      obligations of the U.S. Government, are either backed by
                      the full faith and credit of the United States (e.g., GNMA
                      securities) or supported by the issuing agencies' right to
                      borrow from the U.S. Treasury. The issues of other
                      agencies are supported only by the credit of the
                      instrumentality (e.g., FNMA securities).
 
                        U.S. TREASURY OBLIGATIONS--Bills, notes, and bonds
                      issued by the U.S. Treasury, as well as separately traded
                      interest and principal component parts of such obligations
                      known as Separately Traded Registered Interest and
                      Principal Securities ("STRIPS") that are transferable
                      through the Federal book-entry system.
 
                        U.S. Government Securities generally do not involve the
                      credit risks associated with investments in other types of
                      fixed-income securities, although, as a result, the yields
                      available from U.S. Government Securities are generally
                      lower than the yields available from otherwise comparable
                      corporate fixed-income securities. Like other fixed-income
                      securities, however, the values of U.S. Government
                      Securities change as interest rates fluctuate.
                      Fluctuations in the value of portfolio securities will in
                      many cases not affect interest income on existing
                      portfolio securities, but will be reflected in the Fund's
                      net asset value. Because the magnitude of these
                      fluctuations will generally be greater at times when a
                      Fund's average maturity is longer, under certain market
                      conditions the Fund may invest in short-term investments
                      yielding lower current income rather than investing in
                      higher yielding longer-term securities.
 
                        VARIABLE AND FLOATING RATE INSTRUMENTS--Obligations that
                      may carry variable or floating rates of interest, may
                      involve conditional or
 
                                       39
<PAGE>   342
 
                      unconditional demand features and may include variable
                      amount master demand notes. The interest rates on these
                      securities may be reset daily, weekly, quarterly or some
                      other reset period, and may have a floor or ceiling on
                      interest rate changes. There is a risk that the current
                      interest rate on such obligations may not accurately
                      reflect existing market interest rates. A demand
                      instrument with a demand notice period exceeding seven
                      days may be considered illiquid if there is no secondary
                      market for such security.
 
                        WARRANTS--Securities that entitle the holder to buy a
                      proportionate amount of common stock at a specified price
                      for a limited or unlimited period of time. Warrants are
                      often freely transferable and are traded on major stock
                      exchanges.
 
                        YANKEE BONDS--Dollar denominated securities issued by
                      foreign-domiciled issuers that obligate the issuer to pay
                      the bondholder a specified sum of money, usually
                      semiannually, and to repay the principal amount of the
                      loan at maturity. Sovereign bonds are bonds issued by the
                      governments of foreign countries. Supranational bonds are
                      those issued by supranational entities, such as the World
                      Bank and European Investment Bank. Canadian bonds are
                      bonds issued by Canadian provinces.
 
                        ZERO-COUPON OBLIGATIONS--Non-income producing securities
                      evidencing ownership of future interest and principal
                      payments on bonds. These obligations pay no current
                      interest and are typically sold at prices greatly
                      discounted from par value. The return on a zero-coupon
                      obligation, when held to maturity, equals the difference
                      between the par value and the original purchase price.
 
                        For federal income tax purposes, the difference between
                      the par value and the original issue price (original issue
                      discount) is included in the income of a holder of a
                      zero-coupon obligation over the term of the obligation
                      even though the interest is not paid until maturity. The
                      amount included in income is determined under a constant
                      interest rate method. In addition, if an obligation is
                      purchased subsequent to its original issue, a holder such
                      as the Income Funds may elect to include market discount
                      in income currently on a ratable accrual method or a
                      constant interest rate method. Market discount is the
                      difference between the obligation's "adjusted issue price"
                      (the original issue price plus original issue discount
                      accrued to date) and the holder's purchase price. If no
                      such election is made, gain on the disposition of a market
                      discount obligation is treated as ordinary income (rather
                      than capital gain) to the extent it does not exceed the
                      accrued market discount.
 
                        Zero-coupon obligations have greater price volatility
                      than other fixed-income obligations of similar maturity
                      and such obligations will be purchased when the yield
                      spread, in light of the obligation's duration, is
                      considered advantageous.
 
                                       40
<PAGE>   343
 
                             HighMark BALANCED FUND
                            INVESTMENT PORTFOLIO OF
                                 HighMark FUNDS
                   For further information (including current
                  yield, purchase and redemption information),
                              call 1-800-433-6884
 
INVESTMENT ADVISOR
Pacific Alliance Capital Management,
a division of Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
CUSTODIAN
Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
ADMINISTRATOR & DISTRIBUTOR
SEI Fund Resources and
SEI Financial Services Company
Oaks, Pennsylvania 19456
 
LEGAL COUNSEL
Ropes & Gray
One Franklin Square
1301 K Street, N.W., Suite 800 East
Washington, D.C. 20005
 
AUDITORS
Deloitte & Touche LLP
1700 Courthouse Plaza Northeast
Dayton, OH 45402
 
  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS IN CONNECTION WITH THE OFFERING
MADE BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR
REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY HIGHMARK OR
ITS DISTRIBUTOR. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFERING BY HIGHMARK OR
BY THE DISTRIBUTOR IN ANY JURISDICTION IN WHICH SUCH OFFERING MAY NOT LAWFULLY
BE MADE.
 
NOT FDIC INSURED
<PAGE>   344
                               MONEY MARKET FUNDS

                               - Diversified Money 
                                 Market Fund

                               - U.S. Government Money
                                 Market Fund

                               - 100% U.S. Treasury
                                 Money Market Fund

                               - California Tax-Free
                                 Money Market Fund

                               Prospectus

                               Retail Shares

                               March 28, 1997








84822-B(3/97)           [LOGO] HIGHMARK(SM) 
                               FUNDS
<PAGE>   345
 
                                 HIGHMARK FUNDS
 
                               MONEY MARKET FUNDS
 
  HighMark Funds ("HighMark") is an open-end, diversified, registered investment
company that offers a convenient means of investing in one or more
professionally managed portfolios of securities. This Prospectus relates to
HighMark's:
 
                        - Diversified Money Market Fund
                        - U.S. Government Money Market Fund
                        - 100% U.S. Treasury Money Market Fund
                        - California Tax-Free Money Market Fund
 
                                 RETAIL SHARES
 
  HighMark's Retail Shares are offered to investors who are not fiduciary
clients of Union Bank of California, N.A., and who are not otherwise eligible
for HighMark's Fiduciary Shares.
 
  This Prospectus sets forth concisely the information about HighMark and the
Funds that a prospective investor should know before investing. Investors are
advised to read this Prospectus and retain it for future reference. A Statement
of Additional Information dated the same date as this Prospectus has been filed
with the Securities and Exchange Commission and is available without charge by
writing the Distributor, SEI Financial Services Company, Oaks, Pennsylvania
19456, or by calling 1-800-433-6884. The Statement of Additional Information is
incorporated into this Prospectus by reference. This Prospectus relates only to
the Retail Shares of the Money Market Funds. Interested persons who wish to
obtain a prospectus for the other Funds of HighMark may contact the Distributor
at the above address and telephone number.
 
    AN INVESTMENT IN THE FUNDS IS NEITHER INSURED NOR GUARANTEED BY THE U.S.
GOVERNMENT. THERE CAN BE NO ASSURANCE THAT THE FUNDS WILL BE ABLE TO MAINTAIN A
                   STABLE NET ASSET VALUE OF $1.00 PER SHARE.
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
HIGHMARK'S SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK, INCLUDING UNION BANK OF CALIFORNIA, N.A., BANK OF
TOKYO-MITSUBISHI, LIMITED OR ANY OF THEIR AFFILIATES OR CORRESPONDENTS.
HIGHMARK'S SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT INSURANCE
CORPORATION OR ANY OTHER GOVERNMENT AGENCY. INVESTMENT IN HIGHMARK INVOLVES
RISKS, INCLUDING POSSIBLE LOSS OF THE PRINCIPAL AMOUNT INVESTED.
 
March 28, 1997
 
Retail Shares
<PAGE>   346
 
                                    SUMMARY
 
  HIGHMARK FUNDS ("HighMark") is an open-end, diversified, registered investment
company providing a convenient way to invest in professionally managed
portfolios of securities. The following provides basic information about the
Retail Shares of the Diversified Money Market, U.S. Government Obligations Money
Market, 100% U.S. Treasury Obligations Money Market, and California Tax-Free
Money Market Funds (each a "Fund" and sometimes referred to in this prospectus
as the "Funds"). This summary is qualified in its entirety by reference to the
more detailed information provided elsewhere in the Prospectus and in the
Statement of Additional Information.
 
  WHAT ARE THE FUNDS' INVESTMENT OBJECTIVES? The Diversified Money Market Fund,
the U.S. Government Money Market Fund, and the 100% U.S. Treasury Money Market
Fund seek current income with liquidity and stability of principal. The
California Tax-Free Money Market Fund seeks as high a level of current interest
income free from federal income tax and California personal income tax as is
consistent with the preservation of capital and relative stability of principal.
(See "INVESTMENT OBJECTIVES")
 
  WHAT ARE THE FUNDS' PERMITTED INVESTMENTS? THE DIVERSIFIED MONEY MARKET FUND
invests in obligations with maturities deemed under SEC rules to be 397 days or
less ("short-term investments") issued or guaranteed by the U.S. Government, its
agencies or instrumentalities, in high-quality short-term obligations issued by
banks and corporations, and other high-quality rated and unrated short-term
instruments; some of the obligations and short-term instruments in which the
Fund invests may be subject to repurchase agreements. THE U.S. GOVERNMENT MONEY
MARKET FUND invests in short-term obligations issued or guaranteed by the U.S.
Treasury, and additionally invests in obligations issued or guaranteed by
agencies or instrumentalities of the U.S. Government; some of the obligations in
which the Fund invests may be subject to repurchase agreements. THE 100% U.S.
TREASURY MONEY MARKET FUND invests exclusively in direct U.S. Treasury
short-term obligations. THE CALIFORNIA TAX-FREE MONEY MARKET FUND invests
primarily in bonds and notes issued by or on behalf of the State of California
and other states, territories, possessions of the United States, and the
District of Columbia and their respective authorities, agencies,
instrumentalities and political sub-divisions, the interest on which is excluded
from gross income for federal income and California personal income tax purposes
and not treated as a preference item for individuals for purposes of the federal
alternative minimum tax. (See "INVESTMENT POLICIES")
 
  WHAT ARE THE RISKS INVOLVED WITH AN INVESTMENT IN THE FUNDS? Each Fund seeks
to maintain a net asset value of $1.00 per share. There can be no assurance that
a Fund will be able to maintain a net asset value of $1.00 per share on a
continuous basis. The California Tax-Free Money Market Fund concentrates its
investments in California municipal securities, and an investment in the Fund
therefore may be riskier than an investment in other types of money market
funds. (See "Risk Factors")
 
  ARE MY INVESTMENTS INSURED? HighMark's Shares are not federally insured by the
FDIC or any other government agency. Any guarantee by the U.S. Government, its
agencies or any instrumentalities of the securities in which any Fund invests
guarantees only the payment of principal and interest on the guaranteed
security, and does not guarantee the yield or value of the security or yield or
value of Shares of that Fund.
 
  WHO IS THE ADVISOR? Pacific Alliance Capital Management, a division of Union
Bank of California, N.A., serves as the Advisor to HighMark. (See "The Advisor")
 
                                        2
<PAGE>   347
 
  WHO IS THE ADMINISTRATOR? SEI Fund Resources serves as the Administrator of
HighMark. (See "The Administrator")
 
  WHO IS THE CUSTODIAN? Union Bank of California, N.A. (the "Bank") serves as
the Custodian of HighMark's assets. (See "The Custodian")
 
  WHO IS THE DISTRIBUTOR? SEI Financial Services Company acts as distributor of
HighMark's Shares. (See "The Distributor")
 
  HOW DO I PURCHASE AND REDEEM SHARES? Purchases and redemptions may be made
through the Distributor on days on which both the New York Stock Exchange and
the Federal Reserve wire system are open for business ("Business Days"). The
minimum initial investment is generally $1,000. In order to be effective on the
Business Day received, orders to purchase and redeem must be placed prior to
8:00 a.m., Pacific time (11:00 a.m., Eastern time) for the California Tax-Free
Money Market Fund, prior to 9:00 a.m., Pacific time (12:00 noon, Eastern time)
for the 100% U.S. Treasury Money Market Fund and prior to 10:00 a.m., Pacific
time (1:00 p.m., Eastern time) for the Diversified Money Market and U.S.
Government Money Market Funds on any Business Day. Otherwise, the order will be
effective the next Business Day. In addition, effectiveness of a purchase is
contingent on the Custodian's receipt of Federal funds before 11:00 a.m.,
Pacific time (2:00 p.m., Eastern time). (See "HOW TO PURCHASE SHARES and
REDEMPTION OF SHARES")
 
  HOW ARE DIVIDENDS PAID? The net investment income (exclusive of short-term
capital gains) of the Funds is determined and declared on each Business Day as a
dividend for Shareholders of record as of the close of business on that day.
Dividends are paid monthly in additional shares unless the Shareholder elects to
take the payment in cash. (See "DIVIDENDS")
 
                                        3
<PAGE>   348
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
Summary...............................................................................    2
Money Market Funds Fee Table..........................................................    5
Financial Highlights..................................................................    7
Fund Description......................................................................   15
Investment Objectives.................................................................   15
Investment Policies...................................................................   15
  Diversified Money Market Fund.......................................................   16
  U.S. Government Money Market Fund...................................................   17
  The 100% U.S. Treasury Money Market Fund............................................   18
  California Tax-Free Money Market Fund...............................................   18
  Municipal Securities................................................................   20
General...............................................................................   21
  Illiquid and Restricted Securities..................................................   22
  Lending of Portfolio Securities.....................................................   22
  Other Investments...................................................................   22
  Risk Factors........................................................................   23
Investment Limitations................................................................   24
  Valuation of Shares.................................................................   26
How to Purchase Shares................................................................   26
  How to Purchase By Mail.............................................................   27
  How to Purchase By Wire.............................................................   28
  How to Purchase through an Automatic Investment Plan ("AIP")........................   28
  How to Purchase Through Financial Institutions......................................   28
Exchange Privileges...................................................................   29
Redemption of Shares..................................................................   30
  By Mail.............................................................................   30
  Telephone Transactions..............................................................   30
  Systematic Withdrawal Plan ("SWP")..................................................   31
  Other Information Regarding Redemptions.............................................   32
Dividends.............................................................................   32
Federal Taxation......................................................................   33
Service Arrangements..................................................................   35
  The Advisor.........................................................................   35
  Administrator.......................................................................   36
  The Transfer Agent..................................................................   37
  Shareholder Service Plan............................................................   37
  Distributor.........................................................................   37
  The Distribution Plan...............................................................   38
  Banking Laws........................................................................   39
  Custodian...........................................................................   39
General Information...................................................................   39
  Description of HighMark & Its Shares................................................   39
  Performance Information.............................................................   40
  Miscellaneous.......................................................................   41
Description of Permitted Investments..................................................   42
</TABLE>
 
                                        4
<PAGE>   349
 
                          MONEY MARKET FUNDS FEE TABLE
 
<TABLE>
<CAPTION>
                                                                                100% U.S.          CALIFORNIA
                                    DIVERSIFIED MONEY    U.S. GOVERNMENT        TREASURY            TAX-FREE
                                       MARKET FUND      MONEY MARKET FUND   MONEY MARKET FUND   MONEY MARKET FUND
                                      RETAIL SHARES       RETAIL SHARES       RETAIL SHARES       RETAIL SHARES
                                    -----------------   -----------------   -----------------   -----------------
<S>                                 <C>                 <C>                 <C>                 <C>
SHAREHOLDER TRANSACTION
  EXPENSES(A)
Maximum Sales Load Imposed on
  Purchases (as a percentage of
  offering price).................            0%                  0%                  0%                  0%
Maximum Sales Load Imposed on
  Reinvested Dividends (as a
  percentage of offering price)...            0%                  0%                  0%                  0%
Deferred Sales Load (as a
  percentage of original purchase
  price or redemption proceeds, as
  applicable).....................            0%                  0%                  0%                  0%
Redemption Fees (as a percentage
  of amount redeemed, if
  applicable)(b)..................            0%                  0%                  0%                  0%
Exchange Fee(a)...................        $   0               $   0               $   0               $   0
ANNUAL OPERATING EXPENSES (as a
  percentage of net assets)
  Management Fees (after voluntary
    reduction)(c).................         0.30%               0.29%               0.24%               0.09%
  12b-1 Fees......................         0.25%               0.25%               0.25%               0.25%
  Other Expenses (after voluntary
    reduction)(d).................         0.20%               0.21%               0.21%               0.21%
                                            ---                 ---                 ---                 ---
  Total Fund Operating
    Expenses(e)...................         0.75%               0.75%               0.70%               0.55%
                                    ==================  ==================  ==================  ==================
</TABLE>
 
- ---------------
Example: You would pay the following expenses on a $1,000 investment, assuming
         (1) 5% annual return and (2) redemption at the end of each time period.
 
<TABLE>
<CAPTION>
                                                           1 YEAR     3 YEARS     5 YEARS     10 YEARS
                                                           ------     -------     -------     --------
<S>                                                        <C>        <C>         <C>         <C>
Diversified Money Market Fund Retail Shares..............    $8         $24         $42         $ 93
U.S. Government Money Market Fund Retail Shares..........    $8         $24         $42         $ 93
100% U.S. Treasury Money Market Fund Retail Shares.......    $7         $22         $39         $ 87
California Tax-Free Money Market Fund Retail Shares......    $6         $18         $31         $ 69
</TABLE>
 
  The purpose of the tables above is to assist an investor in the Funds in
understanding the various costs and expenses that a Shareholder will bear
directly or indirectly. For a more complete discussion of each Fund's annual
operating expenses, see SERVICE ARRANGEMENTS below. THE FOREGOING EXAMPLE SHOULD
NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE EXPENSES. ACTUAL EXPENSES
MAY BE GREATER OR LESS THAN THOSE SHOWN.
 
(a) Certain entities (including Union Bank of California and its affiliates)
    making investments in the Funds on behalf of their customers may charge
    customers fees for services provided in connection with the investment in,
    redemption of, and exchange of Shares. (See HOW TO PURCHASE SHARES, EXCHANGE
    PRIVILEGES, REDEMPTION OF SHARES, and SERVICE ARRANGEMENTS below.)
 
                                        5
<PAGE>   350
 
(b) A wire redemption charge is deducted from the amount of a wire redemption
    payment made at the request of a Shareholder. (See REDEMPTION OF SHARES
    below.)
 
(c) Absent voluntary fee waivers, MANAGEMENT FEES would be 0.30% for the Retail
    Shares of the U.S. Government Money Market Fund, the 100% U.S. Treasury
    Money Market Fund, and the California Tax-Free Money Market Fund.
 
(d) Absent voluntary fee waivers, OTHER EXPENSES would be 0.47% for the Retail
    Shares of the Diversified Money Market Fund and 0.48% for the Retail Shares
    of each of the U.S. Government Money Market Fund, the 100% U.S. Treasury
    Money Market Fund and the California Tax-Free Money Market Fund.
 
(e) Absent voluntary fee waivers, TOTAL FUND OPERATING EXPENSES would be: 1.02%
    for the Retail Shares of the Diversified Money Market Fund, and 1.03% for
    the Retail Shares of each of the U.S. Government Money Market Fund, the 100%
    U.S. Treasury Money Market Fund, and the California Tax-Free Money Market
    Fund.
 
                                        6
<PAGE>   351
 
                              FINANCIAL HIGHLIGHTS
 
  The tables below set forth certain financial information with respect to the
Retail Shares of the Diversified Money Market Fund, U.S. Government Money Market
Fund, 100% U.S. Treasury Money Market Fund, and California Tax-Free Money Market
Fund. Financial highlights for the Funds for the period ended July 31, 1996 have
been derived from financial statements audited by Deloitte & Touche LLP,
independent auditors for HighMark, whose report thereon is included in the
Statement of Additional Information. Prior to the fiscal year ended July 31,
1996, Coopers & Lybrand L.L.P. served as independent accountants for HighMark.
 
                         DIVERSIFIED MONEY MARKET FUND
                    (FORMERLY DIVERSIFIED OBLIGATIONS FUND)
 
<TABLE>
<CAPTION>
                                                                                YEAR ENDED JULY 31,
                                                          ----------------------------------------------------------------
                                                            1996        1995       1994       1993       1992       1991
                                                          --------    --------    -------    -------    -------    -------
                                                           RETAIL      RETAIL     RETAIL     RETAIL     RETAIL     RETAIL
                                                          --------    --------    -------    -------    -------    -------
<S>                                                       <C>         <C>         <C>        <C>        <C>        <C>
Net Asset Value,
  Beginning of Period..................................   $   1.00    $   1.00    $  1.00    $  1.00    $  1.00    $  1.00
                                                          --------    --------    -------    -------    -------    -------
Investment Activities
  Net investment income................................      0.049       0.049      0.028      0.027      0.043      0.066
                                                          --------    --------    -------    -------    -------    -------
Distributions
  Net investment income................................     (0.049)     (0.049)    (0.028)    (0.027)    (0.043)    (0.066)
                                                          --------    --------    -------    -------    -------    -------
Net Asset Value, End of Period.........................   $   1.00    $   1.00    $  1.00    $  1.00    $  1.00    $  1.00
                                                          ========    ========    =======    =======    =======    =======
Total Return...........................................       5.01%       4.99%      2.88%      2.75%      4.41%      7.00%
Ratios/Supplementary Data:
  Net Assets at end of period (000)....................   $185,952    $128,191    $75,725    $77,589    $17,600    $16,618
  Ratio of expenses to average net assets..............       0.75%       0.74%      0.74%      0.72%      0.72%      0.70%
  Ratio of net investment income to average net
    assets.............................................       4.89%       4.92%      2.83%      2.72%      4.34%      6.71%
  Ratio of expenses to average net assets*.............       1.23%       1.23%      1.14%      0.79%      0.97%      0.70%
  Ratio of net investment income to average net
    assets*............................................       4.41%       4.43%      2.42%      2.65%      4.09%      6.71%
</TABLE>
 
  On December 1, 1990, the Diversified Obligations Fund, now renamed the
Diversified Money Market Fund, commenced offering Class A Shares and designated
existing shares as Class B Shares. As of June 20, 1994, Class A and Class B
Shares were designated as "Investor" (now called "Retail") and "Fiduciary"
Shares, respectively.
 
  - During each period the investment advisory, administration and distribution
    fees (Retail Shares) were voluntarily reduced. If such voluntary fee
    reductions had not occurred, the ratios would have been as indicated.
- ---------------
 
(a) Period from commencement of operations.
 
(b) Annualized.
 
                                        7
<PAGE>   352
 
<TABLE>
<CAPTION>
                                                                                                         AUGUST 10,
                                                                                                          1987 TO
                                                                                YEAR ENDED JULY 31,       JULY 31
                                                                               ---------------------     ----------
                                                                                 1990         1989        1988(a)
                                                                               --------     --------     ----------
<S>                                                                            <C>          <C>          <C>
Net Asset Value, Beginning of Period.........................................  $   1.00     $   1.00      $   1.00
Investment Activities
  Net investment income......................................................     0.079        0.085         0.066
Distributions
  Net investment income......................................................    (0.079)      (0.085)       (0.066)
                                                                               --------     --------      --------
Net Asset Value, End of Period...............................................  $   1.00     $   1.00      $   1.00
                                                                               ========     ========      ========
Total Return.................................................................      8.23%        8.84%         6.94%
Ratios/Supplementary Data:
  Net Assets at end of period (000)..........................................  $593,116     $621,462      $350,499
  Ratio of expenses to average net assets....................................      0.66%        0.59%         0.50%(b)
  Ratio of net investment income to average net assets.......................      7.92%        8.50%         6.73%(b)
  Ratio of expenses to average net assets*...................................      0.69%        0.71%         0.70%(b)
  Ratio of net investment income to average net assets*......................      7.89%        8.38%         6.53%(b)
</TABLE>
 
  On December 1, 1990, the Diversified Obligations Fund, now renamed the
Diversified Money Market Fund, commenced offering Class A Shares and designated
existing shares as Class B Shares. As of June 20, 1994, Class A and Class B
Shares were designated as "Investor" (now called "Retail") and "Fiduciary"
Shares, respectively.
 
  -  During each period the investment advisory, administration and distribution
     fees (Retail Shares) were voluntarily reduced. If such voluntary fee
     reductions had not occurred, the ratios would have been as indicated.
- ---------------
 
(a) Period from commencement of operations.
 
(b) Annualized.
 
                                        8
<PAGE>   353
 
                       U.S. GOVERNMENT MONEY MARKET FUND
                  (FORMERLY U.S. GOVERNMENT OBLIGATIONS FUND)
 
<TABLE>
<CAPTION>
                                                                               YEAR ENDED JULY 31,
                                                       -------------------------------------------------------------------
                                                        1996        1995        1994        1993        1992        1991
                                                       -------     -------     -------     -------     -------     -------
                                                       RETAIL      RETAIL      RETAIL      RETAIL      RETAIL      RETAIL
                                                       -------     -------     -------     -------     -------     -------
<S>                                                    <C>         <C>         <C>         <C>         <C>         <C>
Net Asset Value, Beginning of Period...............    $  1.00     $  1.00     $  1.00     $  1.00     $  1.00     $  1.00
                                                       -------     -------     -------     -------     -------     -------
Investment Activities
  Net investment income............................      0.048       0.048       0.027       0.027       0.042       0.063
                                                       -------     -------     -------     -------     -------     -------
Distributions
  Net investment income............................     (0.048)     (0.048)     (0.027)     (0.027)     (0.042)     (0.063)
                                                       -------     -------     -------     -------     -------     -------
Net Asset Value, End of Period.....................    $  1.00     $  1.00     $  1.00     $  1.00     $  1.00     $  1.00
                                                       =======     =======     =======     =======     =======     =======
Total Return.......................................       4.86%       4.86%       2.74%       2.72%       4.25%       6.49%
Ratios/Supplementary Data:
  Net Assets at end of period (000)................    $75,714     $48,474     $24,055     $37,332     $12,527     $ 1,761
  Ratio of expenses to average net assets..........       0.79%       0.78%       0.77%       0.71%       0.73%       0.63%
  Ratio of net investment income to average net
    assets.........................................       4.77%       4.82%       2.63%       2.67%       4.15%       6.29%
  Ratio of expenses to average net assets*.........       1.26%       1.27%       1.17%       0.79%       0.99%       0.73%
  Ratio of net investment income to average net
    assets*........................................       4.30%       4.33%       2.23%       2.59%       3.89%       6.19%
</TABLE>
 
                                        9
<PAGE>   354
 
<TABLE>
<CAPTION>
                                                                                                         AUGUST 10,
                                                                                                          1987 TO
                                                                                YEAR ENDED JULY 31,       JULY 31,
                                                                                --------------------     ----------
                                                                                 1990         1989        1988(a)
                                                                                -------     --------     ----------
<S>                                                                             <C>         <C>          <C>
Net Asset Value, Beginning of Period..........................................  $  1.00     $   1.00      $   1.00
Investment Activities
  Net investment income.......................................................    0.078        0.083         0.064
                                                                                -------     --------       -------
Distributions
  Net investment income.......................................................   (0.078)      (0.083)       (0.064)
                                                                                -------     --------       -------
Net Asset Value, End of Period................................................  $  1.00     $   1.00      $   1.00
                                                                                =======     ========       =======
Total Return..................................................................     8.09%        8.62%         6.78%
Ratios/Supplementary Data:
  Net Assets at end of period (000)...........................................  $80,774     $114,945      $131,985
  Ratio of expenses to average net assets.....................................     0.65%        0.62%         0.42%(b)
  Ratio of net investment income to average net assets........................     7.80%        8.30%         6.59%(b)
  Ratio of expenses to average net assets*....................................     0.72%        0.75%         0.71%(b)
  Ratio of net investment income to average net assets*.......................     7.73%        8.17%         6.30%(b)
</TABLE>
 
  On December 1, 1990, the U.S. Government Obligations Money Market Fund (now
renamed the U.S. Government Money Market Fund) commenced offering Class A Shares
and designated existing shares as Class B Shares. As of June 20, 1994, Class A
and Class B Shares were designated as "Investor" (now called "Retail") and
"Fiduciary" Shares, respectively.
 
  -  During each period the investment advisory, administration and distribution
     fees (Retail Shares) were voluntarily reduced. If such voluntary fee
     reductions had not occurred, the ratios would have been as indicated.
- ---------------
 
(a) Period from commencement of operations.
 
(b) Annualized.
 
                                       10
<PAGE>   355
 
                      100% U.S. TREASURY MONEY MARKET FUND
                 (FORMERLY 100% U.S. TREASURY OBLIGATIONS FUND)
 
<TABLE>
<CAPTION>
                                                                              YEAR ENDED JULY 31,
                                                      --------------------------------------------------------------------
                                                        1996        1995        1994        1993        1992        1991
                                                      --------     -------     -------     -------     -------     -------
                                                       RETAIL      RETAIL      RETAIL      RETAIL      RETAIL      RETAIL
                                                      --------     -------     -------     -------     -------     -------
<S>                                                   <C>          <C>         <C>         <C>         <C>         <C>
Net Asset Value, Beginning of Period..............    $   1.00     $  1.00     $  1.00     $  1.00     $  1.00     $  1.00
                                                      --------     -------     -------     -------     -------     -------
Investment Activities
  Net investment income...........................       0.046       0.046       0.026       0.026       0.040       0.063
Net realized and unrealized gains on
  investments.....................................                                                       0.001
                                                      --------     -------     -------     -------     -------     -------
  Total from Investment Activities................       0.046       0.046       0.026       0.026       0.041       0.063
                                                      --------     -------     -------     -------     -------     -------
Distributions
  Net investment income...........................     (0.046)     (0.046)     (0.026)     (0.026)     (0.040)     (0.063)
  Net realized gains..............................                                                     (0.001)
                                                      --------     -------     -------     -------     -------     -------
  Total Distributions.............................     (0.046)     (0.046)     (0.026)     (0.026)     (0.041)     (0.063)
                                                      --------     -------     -------     -------     -------     -------
Net Asset Value, End of Period....................    $   1.00     $  1.00     $  1.00     $  1.00     $  1.00     $  1.00
                                                      ========     =======     =======     =======     =======     =======
Total Return......................................        4.74%       4.69%       2.68%       2.64%       4.18%       6.53%
Ratios/Supplementary Data:
  Net Assets at end of period (000)...............    $100,623     $88,660     $39,157     $32,629     $11,551     $19,187
  Ratio of expenses to average net assets.........        0.74%       0.73%       0.74%       0.67%       0.65%       0.62%
  Ratio of net investment income to average net
    assets........................................        4.64%       4.68%       2.68%       2.60%       3.99%       6.25%
  Ratio of expenses to average net assets*........        1.23%       1.22%       1.15%       0.75%       0.97%       0.70%
  Ratio of net investment income to average net
    assets*.......................................        4.15%       4.19%       2.27%       2.52%       3.67%       6.17%
</TABLE>
 
                                       11
<PAGE>   356
 
<TABLE>
<CAPTION>
                                                                                                       AUGUST 10,
                                                                                                        1987 TO
                                                                              YEAR ENDED JULY 31,       JULY 31,
                                                                             ---------------------     ----------
                                                                               1990         1989        1988(a)
                                                                             --------     --------     ----------
<S>                                                                          <C>          <C>          <C>
Net Asset Value, Beginning of Period.....................................    $   1.00     $   1.00      $   1.00
                                                                             --------     --------      --------
Investment Activities
  Net investment income..................................................       0.078        0.081         0.063
  Total from Investment Activities.......................................       0.078        0.081         0.063
                                                                             --------     --------      --------
Distributions
  Net investment income..................................................      (0.078)      (0.081)       (0.063)
                                                                             --------     --------      --------
  Total Distributions....................................................      (0.078)      (0.081)       (0.063)
                                                                             --------     --------      --------
Net Asset Value, End of Period...........................................    $   1.00     $   1.00      $   1.00
                                                                             ========     ========      ========
Total Return.............................................................        8.04%        8.43%        6.62%
Ratios/Supplementary Data:
  Net Assets at end of period (000)......................................    $205,787     $174,258      $151,854
  Ratio of expenses to average net assets................................        0.65%        0.54%         0.41%(b)
  Ratio of net investment income to average net assets...................        7.76%        8.12%         6.45%(b)
  Ratio of expenses to average net assets*...............................        0.71%        0.72%         0.72%(b)
  Ratio of net investment income average net assets*.....................        7.70%        7.94%         6.14%(b)
</TABLE>
 
  On December 1, 1990, the 100% U.S. Treasury Obligations Money Market Fund (now
renamed the 100% U.S. Treasury Money Market Fund) commenced offering Class A
Shares and designated existing shares as Class B Shares. As of June 20, 1994,
Class A and Class B Shares were designated as "Investor" (now called "Retail")
and "Fiduciary" Shares, respectively.
 
  -  During each period the investment advisory, administration and distribution
     fees (Retail Shares) were voluntarily reduced. If such voluntary fee
     reductions had not occurred, the ratios would have been as indicated.
- ------------------
 
(a) Period from commencement of operations.
 
(b) Annualized.
 
                                       12
<PAGE>   357
 
                     CALIFORNIA TAX-FREE MONEY MARKET FUND
                      (FORMERLY CALIFORNIA TAX-FREE FUND)
 
<TABLE>
<CAPTION>
                                                                               YEAR ENDED JULY 31,
                                                       -------------------------------------------------------------------
                                                        1996        1995        1994        1993        1992        1991
                                                       -------     -------     -------     -------     -------     -------
                                                       RETAIL      RETAIL      RETAIL      RETAIL      RETAIL      RETAIL
                                                       -------     -------     -------     -------     -------     -------
<S>                                                    <C>         <C>         <C>         <C>         <C>         <C>
Net Asset Value, Beginning of Period...............    $  1.00     $  1.00     $  1.00     $  1.00     $  1.00     $  1.00
                                                       -------     -------     -------     -------      ------      ------
Investment Activities
  Net investment income............................      0.029       0.031       0.020       0.021       0.032       0.045
                                                       -------     -------     -------     -------      ------      ------
Distributions
  Net investment income............................     (0.029)     (0.031)     (0.020)     (0.021)     (0.032)     (0.045)
                                                       -------     -------     -------     -------      ------      ------
Net Asset Value, End of Period.....................    $  1.00     $  1.00     $  1.00     $  1.00     $  1.00     $  1.00
                                                       =======     =======     =======     =======      ======      ======
Total Return.......................................       2.91%       3.16%       1.99%       2.13%       3.20%       4.57%
Ratios/Supplementary Data:
  Net Assets at end of period (000)................    $53,627     $40,544     $31,521     $44,410     $ 4,609     $ 4,426
  Ratio of expenses to average net assets..........       0.55%       0.50%       0.50%       0.44%       0.54%       0.53%
  Ratio of net investment income to average net
    assets.........................................       2.89%       3.14%       1.96%       2.08%       3.15%       4.47%
  Ratio of expenses to average net assets*.........       1.25%       1.26%       1.18%       0.79%       0.99%       0.72%
  Ratio of net investment income to average net
    assets*........................................       2.19%       2.38%       1.28%       1.73%       2.70%       4.28%
</TABLE>
 
                                       13
<PAGE>   358
 
<TABLE>
<CAPTION>
                                                                                                       AUGUST 10,
                                                                                                        1987 TO
                                                                           YEAR ENDED JULY 31,          JULY 31,
                                                                         -----------------------       ----------
                                                                           1990           1989          1988(a)
                                                                         --------       --------       ----------
<S>                                                                      <C>            <C>            <C>
Net Asset Value, beginning of Period...................................  $   1.00       $   1.00        $   1.00
                                                                         --------       --------        --------
Investment Activities
  Net investment income................................................     0.052          0.054           0.042
                                                                         --------       --------        --------
Distributions
  Net Investment income................................................    (0.052)        (0.054)         (0.042)
                                                                         --------       --------        --------
Net Asset Value, End of Period.........................................  $   1.00       $   1.00        $   1.00
                                                                         ========       ========        ========
Total Return...........................................................      5.28%          5.58%           4.41%
Ratios/Supplementary Data:
  Net Assets at end of period (000)....................................  $137,308       $147,868        $121,940
  Ratio of expenses to average net assets..............................      0.66%          0.71%           0.70%(b)
  Ratio of net investment income to average net assets.................      5.17%          5.45%           4.34%(b)
  Ratio of expenses to average net assets*.............................      0.72%          0.76%           0.75%(b)
  Ratio of net investment income to average net assets*................      5.11%          5.40%           4.29%(b)
</TABLE>
 
  On December 1, 1990, the California Tax-Free Fund (now renamed the California
Tax-Free Money Market Fund) commenced offering Class A Shares and designated
existing shares as Class B Shares. As of June 20, 1994, Class A and Class B
Shares were designated as "Investor" (now called "Retail") and "Fiduciary"
Shares, respectively.
 
- -  During each period the investment advisory, administration and distribution
   fees (Retail Shares) were voluntarily reduced. If such voluntary fee
   reductions had not occurred, the ratios would have been as indicated.
- ---------------
 
(a) Period from commencement of operations.
 
(b) Annualized.
 
                                       14
<PAGE>   359
 
FUND
DESCRIPTION             HighMark Funds ("HighMark") is an open-end, diversified,
                      registered investment company that currently offers units
                      of beneficial interest ("Shares") in sixteen separate
                      investment portfolios ("Funds"). All of the Funds are
                      advised by Pacific Alliance Capital Management (the
                      "Advisor"), a division of Union Bank of California, N.A.
                      Shareholders may purchase Shares of selected Funds through
                      two separate classes (the "Retail" and "Fiduciary"
                      classes). These classes may have different sales charges
                      and other expenses, which may affect performance.
                      Information regarding HighMark's other Funds and other
                      classes is contained in separate prospectuses that may be
                      obtained from HighMark's Distributor, SEI Financial
                      Services Company, at Oaks, Pennsylvania, 19456, or by
                      calling 1-800-433-6884.
 
                        For information concerning those investors who qualify
                      to purchase Retail Shares and the operation of HighMark's
                      Distribution Plan, see HOW TO PURCHASE SHARES and SERVICE
                      ARRANGEMENTS below. (Retail Shares may be hereinafter
                      referred to as "Shares.")
 
INVESTMENT
OBJECTIVES              The investment objectives of the Funds are as follows:
 
                           The Diversified Money Market Fund, the U.S.
                        Government Money Market Fund and the 100% U.S. Treasury
                        Money Market Fund each seek current income with
                        liquidity and stability of principal.
 
                           The California Tax-Free Money Market Fund seeks as
                        high a level of current interest income free from
                        federal income tax and California personal income tax as
                        is consistent with the preservation of capital and
                        relative stability of principal.
 
                           The investment objectives and certain of the
                        investment limitations of the Diversified Money Market
                        Fund, the U.S. Government Money Market Fund, the 100%
                        U.S. Treasury Money Market Fund, and the California
                        Tax-Free Money Market Fund may not be changed without a
                        vote of the holders of a majority of the outstanding
                        Shares of the respective Fund (as defined under GENERAL
                        INFORMATION--Miscellaneous below). There can be no
                        assurance that a Fund will achieve its investment
                        objective.
 
INVESTMENT
POLICIES                While the Diversified Money Market Fund, the U.S.
                      Government Money Market Fund and the 100% U.S. Treasury
                      Money Market Fund have the same investment objective, they
                      differ as follows with respect to the types of instruments
                      that may be purchased. Each Fund may invest only in U.S.
                      dollar denominated obligations determined by the Advisor
                      to present minimal credit risks under guidelines adopted
                      by HighMark's Board of Trustees.
 
                                       15
<PAGE>   360
 
                      Diversified Money Market Fund
 
                        The Diversified Money Market Fund may invest in the
                      following obligations:
 
                           (i) obligations issued by the U.S. Government, and
                               backed by its full faith and credit, and
                               obligations issued or guaranteed as to principal
                               and interest by the agencies or instrumentalities
                               of the U.S. Government (e.g., obligations issued
                               by Farmers Home Administration, Government
                               National Mortgage Association, Federal Farm
                               Credit Bank and Federal Housing Administration);
 
                          (ii) obligations such as bankers' acceptances, bank
                               notes, certificates of deposit and time deposits
                               of thrift institutions, savings and loans, U.S.
                               commercial banks (including foreign branches of
                               such banks), and U.S. and foreign branches of
                               foreign banks, provided that such institutions
                               (or, in the case of a branch, the parent
                               institution) have total assets of $1 billion or
                               more as shown on their last published financial
                               statements at the time of investment;
 
                         (iii) short-term promissory notes issued by
                               corporations, including Canadian Commercial Paper
                               ("CCP"), which is U.S. dollar denominated
                               commercial paper issued by a Canadian corporation
                               or a Canadian counterpart of a U.S. corporation,
                               and Europaper, which is U.S. dollar denominated
                               commercial paper of a foreign issuer;
 
                          (iv) U.S. dollar denominated securities issued or
                               guaranteed by foreign governments, their
                               political subdivisions, agencies or
                               instrumentalities, and obligations of
                               supranational entities such as the World Bank and
                               the Asian Development Bank (provided that the
                               Fund invests no more than 5% of its assets in any
                               such instrument and invests no more than 25% of
                               its assets in such instruments in the aggregate);
 
                           (v) up to 5% of its total assets in loan
                               participations issued by a bank in the U.S. with
                               assets exceeding $1 billion where the underlying
                               loan is made to a borrower in whose obligations
                               the Fund may invest and the underlying loan has a
                               remaining maturity of 397 days or less;
 
                          (vi) readily-marketable, short-term debt securities
                               including, but not limited to, those backed by
                               company receivables, truck and auto loans,
                               leases, and credit card loans;
 
                         (vii) Treasury receipts, including TRs, TIGRs and CATs;
                               and
 
                        (viii) repurchase agreements involving such obligations.
 
                                       16
<PAGE>   361
 
                        Certain of the obligations in which the Funds may invest
                      may be variable or floating rate instruments, may involve
                      a conditional or unconditional demand feature, and may
                      include variable amount master demand notes.
 
                        Subject to the provisions of Rule 2a-7 under the
                      Investment Company Act of 1940 (the "1940 Act"),
                      investments of the Diversified Money Market Fund will
                      consist of those obligations that, at the time of
                      purchase, possess the highest short-term rating from at
                      least one nationally recognized statistical rating
                      organization ("NRSRO") (for example, commercial paper
                      rated "A-1" by Standard & Poor's Corporation ("S&P") or
                      "P-1" by Moody's Investors Service, Inc. ("Moody's")).
                      Although the Diversified Money Market Fund does not
                      presently expect to do so, it may also invest up to 5% of
                      its net assets in obligations that, at the time of
                      purchase, possess one of the two highest short-term
                      ratings from at least one NRSRO, and in obligations that
                      do not possess an equivalent short-term rating (i.e., are
                      unrated) but are determined by the Advisor to be of
                      comparable quality to the rated instruments eligible for
                      purchase by the Fund under guidelines adopted by the Board
                      of Trustees.
 
                        The Diversified Money Market Fund will not invest more
                      than 5% of its total assets in the securities of any one
                      first tier issuer, except that the Fund may invest up to
                      25% of its total assets in the securities of a single
                      first tier issuer for a period of up to three business
                      days. There is no limit on the percentage of the Fund's
                      assets that may be invested in obligations issued or
                      guaranteed by the U.S. Government, its agencies, or
                      instrumentalities and repurchase agreements fully
                      collateralized by such obligations.
 
                        The Fund may concentrate its investments in certain
                      instruments issued by U.S. Banks, U.S. branches of foreign
                      banks, and foreign branches of U.S. banks, but only so
                      long as the investment risk associated with investing in
                      foreign branches of U.S. banks is the same as that
                      associated with investing in instruments issued by the
                      U.S. parent. Domestic certificates of deposit and bankers'
                      acceptances include those issued by domestic branches of a
                      foreign bank to the extent permitted by the rules of the
                      Securities and Exchange Commission. The rules currently
                      permit U.S. branches of foreign banks to be treated as a
                      domestic bank if it can be demonstrated that they are
                      subject to the same regulations as domestic banks.
 
                      U.S. Government Money Market Fund
 
                        As a fundamental policy, the U.S. Government Money
                      Market Fund may not purchase securities other than U.S.
                      Treasury bills, notes, and other obligations issued or
                      guaranteed by the U.S. Government, its agencies, or
                      instrumentalities (such as obligations issued by the
                      Government National Mortgage Association
 
                                       17
<PAGE>   362
 
                      and the Export-Import Bank of the United States) some of
                      which may be subject to repurchase agreements.
 
                      The 100% U.S. Treasury Money Market Fund
 
                        The 100% U.S. Treasury Money Market Fund invests
                      exclusively in direct U.S. Treasury obligations and
                      separately traded component parts of such obligations
                      transferable through the Federal Reserve book-entry system
                      ("STRIPs").
 
                      California Tax-Free Money Market Fund
 
                        The California Tax-Free Money Market Fund invests in
                      obligations issued by the State of California and its
                      political subdivisions or municipal authorities and
                      obligations issued by territories or possessions of the
                      United States ("Municipal Securities").
 
                        Under normal market conditions and, as a matter of
                      fundamental policy, at least 80% of the value of the total
                      assets of the California Tax-Free Money Market Fund will
                      be invested in Municipal Securities, the interest on
                      which, in the opinion of bond counsel, is excluded from
                      gross income both for federal income tax purposes and for
                      California personal income tax purposes, and does not
                      constitute a preference item for individuals for purposes
                      of the federal alternative minimum tax.
 
                        Certain of the obligations in which the Fund may invest
                      may be variable or floating rate instruments and may
                      involve a conditional or unconditional demand feature.
 
                        Under normal market conditions, up to 20% of the
                      California Tax-Free Money Market Fund's total assets may
                      be invested in short-term obligations, the interest on
                      which is treated as a preference item for individuals for
                      purposes of the federal alternative minimum tax or subject
                      to federal or California personal income tax ("Taxable
                      Obligations"). These shortterm obligations may include
                      bonds from other states and cash equivalents as described
                      below.
 
                        Dividends paid by the California Tax-Free Money Market
                      Fund that are derived from obligations, the interest on
                      which is exempt from California taxation when received by
                      an individual ("California Exempt-Interest Securities"),
                      are excluded from gross income for California personal
                      income tax purposes. Dividends derived from interest on
                      obligations other than California Exempt-Interest
                      Securities may be excluded from gross income for federal
                      income tax purposes but will be subject to California
                      personal income tax.
 
                        In order for the California Tax-Free Money Market Fund
                      to pay exempt-interest dividends, at least 50% of its
                      total assets must be invested in California
 
                                       18
<PAGE>   363
 
                      Exempt-Interest Securities at the close of each quarter of
                      its taxable year. Dividends, regardless of their source,
                      may be subject to local taxes.
 
                        In seeking to achieve its investment objective, the
                      California Tax-Free Money Market Fund may invest all or
                      any part of its assets in Municipal Securities that are
                      private activity bonds, including those known as
                      industrial development bonds under prior federal law. (Any
                      reference herein to private activity bonds includes
                      industrial development bonds.) Interest on private
                      activity bonds is excluded from gross income for federal
                      income tax purposes only if the bonds fall within certain
                      defined categories of qualified private activity bonds and
                      meet the requirements specified for those respective
                      categories. However, even if the California Tax-Free Money
                      Market Fund invests in private activity bonds that fall
                      within these categories, Shareholders may become subject
                      to the federal alternative minimum tax on that part of
                      such Fund's distributions derived from interest on such
                      bonds. For further information, see FEDERAL TAXATION
                      below.
 
                        The California Tax-Free Money Market Fund may invest up
                      to 10% of its total assets in shares of other investment
                      companies with like investment objectives. As a
                      shareholder of an investment company, a Fund may
                      indirectly bear investment management fees of that
                      investment company, which are in addition to the
                      management fees the Fund pays its own advisor.
 
                        Investments of the California Tax-Free Money Market Fund
                      will consist of those obligations that, at the time of
                      purchase, possess one of the two highest short-term
                      ratings by a NRSRO, and in obligations that do not possess
                      a rating (i.e., are unrated) but are determined by the
                      Advisor to be of comparable quality to the rated
                      instruments eligible for purchase by the Fund under the
                      guidelines adopted by the Board of Trustees.
 
                        The California Tax-Free Money Market Fund may hold
                      uninvested cash reserves pending investment during
                      temporary "defensive" periods or if, in the opinion of the
                      Advisor, desirable tax-exempt obligations are unavailable.
                      In accordance with the Fund's investment objective and
                      subject to its fundamental policies, investments may be
                      made in Taxable Obligations if, for example, suitable
                      tax-exempt obligations are unavailable or if acquisition
                      of U.S. Government or other taxable securities is deemed
                      appropriate for temporary "defensive" purposes.
 
                        As discussed in greater detail in the Statement of
                      Additional Information, Taxable Obligations may include
                      obligations issued or guaranteed by the U.S. Government,
                      its agencies, or instrumentalities (some of which may be
                      subject to repurchase agreements), certificates of
                      deposit, bankers' acceptances, and commercial paper. As
                      noted above, Taxable Obligations may also include private
                      activity bonds depending on their tax treatment.
 
                                       19
<PAGE>   364
 
                        The California Tax-Free Money Market Fund is not
                      intended to constitute a balanced investment program and
                      is not designed for investors seeking capital appreciation
                      nor maximum tax-exempt income irrespective of fluctuations
                      in principal. Investment in the California Tax-Free Money
                      Market Fund would not be appropriate for tax-deferred
                      plans, such as IRA and Keogh plans, and investors should
                      consult a tax or other financial advisor to determine
                      whether investment in the California Tax-Free Fund would
                      be appropriate for them.
 
                      Municipal Securities
 
                        The two principal classifications of Municipal
                      Securities that may be held by the California Tax-Free
                      Money Market Fund are "general obligation" securities and
                      "revenue" securities.
 
                        General obligation securities are secured by the
                      issuer's pledge of its full faith and credit and general
                      taxing power for the payment of principal and interest.
 
                        Revenue securities are payable only from the revenues
                      derived from a particular facility or class of facilities
                      or, in some cases, from the proceeds of a special excise
                      tax or other specific revenue source such as the user of
                      the facility being financed. Private activity bonds held
                      by the California Tax-Free Money Market Fund are in most
                      cases revenue securities and are not payable from the
                      unrestricted revenues of the issuer. Consequently, the
                      credit quality of private activity bonds is usually
                      directly related to the credit standing of the corporate
                      user of the facility involved.
 
                        In addition, Municipal Securities may include "moral
                      obligation" bonds, which are normally issued by special
                      purpose public authorities. If the issuer of moral
                      obligation bonds is unable to meet its debt service
                      obligations from current revenues, it may draw on a
                      reserve fund, the restoration of which is a moral
                      commitment but not a legal obligation of the state or
                      municipality which created the issuer.
 
                        Opinions relating to the validity of Municipal
                      Securities and to the exemption of interest thereon from
                      federal income tax or California personal income tax are
                      rendered at the time of issuance by counsel experienced in
                      matters relating to the validity of and tax exemption of
                      interest on bonds issued by states and their political
                      sub-divisions. Neither the California Tax-Free Money
                      Market Fund nor the Advisor will review the proceedings
                      relating to the issuance of Municipal Securities or the
                      basis for such opinions.
 
                        Municipal Securities purchased by the California
                      Tax-Free Money Market Fund may include adjustable rate
                      tax-exempt notes which may have a stated maturity in
                      excess of 397 days, but which will be subject to a demand
                      feature that will permit the Fund to demand payment of the
                      principal of the note either (i) at
 
                                       20
<PAGE>   365
 
                      any time upon not more than thirty days' notice or (ii) at
                      specified intervals not exceeding 397 days and upon no
                      more than thirty days' notice. There may be no active
                      secondary market with respect to a particular adjustable
                      rate note. Nevertheless, as described in greater detail in
                      the Statement of Additional Information, the adjustable
                      interest rate feature included in this type of note is
                      intended generally to assure that the value of the note to
                      the Fund will approximate its par value.
 
                        Municipal Securities may include, but are not limited
                      to, short-term anticipation notes, bond anticipation
                      notes, revenue anticipation notes, and other forms of
                      short-term tax-exempt securities. These instruments are
                      issued in anticipation of the receipt of tax funds, the
                      proceeds of bond placements, or other revenues. In
                      addition, the California Tax-Free Money Market Fund may
                      purchase tax-exempt commercial paper. Under certain
                      circumstances, and subject to the limitations described in
                      the Statement of Additional Information, the California
                      Tax-Free Money Market Fund may invest indirectly in
                      Municipal Securities by purchasing shares of other
                      tax-exempt money market mutual funds.
 
                        The California Tax-Free Money Market Fund may also
                      acquire Municipal Securities that have "put" features.
                      Under a put feature, the Fund has the right to sell the
                      Municipal Security within a specified period of time at a
                      specified price. The put feature cannot be sold,
                      transferred, or assigned separately from the Municipal
                      Security. Each Fund may buy Municipal Securities with put
                      features to facilitate portfolio liquidity, shorten the
                      maturity of the underlying Municipal Securities, or permit
                      investment at a more favorable rate of return. The
                      aggregate price of a security subject to a put may be
                      higher than the price that otherwise would be paid for the
                      security without such a feature, thereby increasing the
                      security's cost and reducing its yield.
 
GENERAL                 The Funds intend to comply with Rule 2a-7 under the 1940
                      Act. Shares of each Fund are priced pursuant to the
                      amortized cost method whereby HighMark seeks to maintain
                      each Fund's net asset value per Share at $1.00. There can
                      be, however, no assurance that a stable net asset value of
                      $1.00 per Share will be maintained.
 
                        Securities or instruments in which each Fund invests
                      have remaining maturities of 397 days or less, although
                      instruments subject to repurchase agreements and certain
                      adjustable rate instruments may bear longer maturities.
                      The dollar-weighted average portfolio maturity of each
                      Fund will not exceed 90 days.
 
                        Although the Diversified Money Market Fund, the U.S.
                      Government Money Market Fund and the 100% U.S. Treasury
                      Money Market Fund have the same investment advisor and the
                      same investment objective, particular securities held
 
                                       21
<PAGE>   366
 
                      and respective yields of these Funds may differ due to
                      differences in the types of permitted investments, cash
                      flow, and the availability of particular investments.
 
                        Additional information concerning each Fund's
                      investments, including certain investment restrictions
                      that may not be changed with respect to a particular Fund
                      without a vote of the holders of a majority of the
                      outstanding Shares of that Fund, is set forth below and in
                      the Statement of Additional Information. For further
                      information concerning the rating and other requirements
                      governing the investments (including the treatment of
                      securities subject to a tender or demand feature or deemed
                      to possess a rating based on comparable rated securities
                      of the same issuer) of a Fund, see the Statement of
                      Additional Information. The Statement of Additional
                      Information also identifies the NRSROs that may be
                      utilized by the Advisor with respect to portfolio
                      investments for the Funds and provides a description of
                      the relevant ratings assigned by each such NRSRO.
 
                        In the event that a security owned by a Fund is
                      downgraded below the stated rating categories, the Advisor
                      will take appropriate action with regard to that security.
 
                      Illiquid and Restricted Securities
 
                        The Funds shall limit investments in illiquid securities
                      to 10% or less of their net assets. Generally, an
                      "illiquid security" is any security that cannot be
                      disposed of promptly and in the ordinary course of
                      business at approximately the amount at which the Fund has
                      valued the instrument. The absence of a trading market can
                      make it difficult to ascertain the market value of
                      illiquid securities. Each Fund may purchase restricted
                      securities which have not been registered under the
                      Securities Act of 1933 (e.g., Rule 144A Securities and
                      Section 4(2) commercial paper) subject to policies
                      approved by the Board of Trustees. See INVESTMENT
                      RESTRICTIONS in the Statement of Additional Information.
 
                        Time deposits, including ETDs and CTDs but not including
                      certificates of deposit and repurchase agreements, which
                      have maturities in excess of seven days are considered to
                      be illiquid.
 
                      Lending of Portfolio Securities
 
                        In order to generate additional income, each Fund
                      (except the California Tax-Free Money Market Fund) may
                      lend its portfolio securities to broker-dealers, banks or
                      other institutions. A Fund may lend portfolio securities
                      in an amount representing up to 33 1/3% of the value of
                      the Fund's total assets.
 
                      Other Investments
 
                        The Diversified Money Market Fund, the U.S. Government
                      Money Market Fund, and the California Tax-Free Money
                      Market Fund may enter into repur-
 
                                       22
<PAGE>   367
 
                      chase agreements and reverse repurchase agreements. Each
                      Fund intends to limit its respective activity in reverse
                      repurchase agreements to no more than 10% of the Fund's
                      total assets.
 
                        The Funds may enter into forward commitments or purchase
                      securities on a "when-issued" basis. Each Fund expects
                      that commitments by a Fund to enter into forward
                      commitments or purchase when-issued securities will not
                      exceed 25% of the value of the Fund's total assets under
                      normal market conditions. The Funds do not intend to
                      purchase when-issued securities or enter into forward
                      commitments for speculative or leveraging purposes but
                      only for the purpose of acquiring portfolio securities.
 
                        For further information, see "DESCRIPTION OF PERMITTED
                      INVESTMENTS."
 
                      Risk Factors
 
                        Investments by the Funds in obligations of certain
                      agencies and instrumentalities of the U.S. Government may
                      not be guaranteed by the full faith and credit of the U.S.
                      Treasury, and there can be no assurance that the U.S.
                      Government would provide financial support to U.S.
                      Government-sponsored agencies or instrumentalities if it
                      is not obligated to do so by law.
 
                        As in the case of mortgage-related securities, loan
                      participations and certain asset-backed securities are
                      subject to prepayments and there can be no assurance that
                      the Diversified Money Market Fund will be able to reinvest
                      the proceeds of any prepayment at the same interest rate
                      or on the same terms as the original investment.
 
                        With regard to loan participations, although a Fund's
                      ability to receive payments of principal and interest in
                      connection with a particular loan is primarily dependent
                      on the financial condition of the underlying borrower, the
                      lending institution or bank may provide assistance in
                      collecting interest and principal from the borrower and in
                      enforcing its rights against the borrower in the event of
                      a default. In selecting loan participations on behalf of a
                      Fund, the Advisor will evaluate the creditworthiness of
                      both the borrower and the loan originator and will treat
                      both as an "issuer" of the loan participation for purposes
                      of the Fund's investment policies and restrictions (see
                      INVESTMENT RESTRICTIONS in the Statement of Additional
                      Information).
 
                        Foreign securities which the Diversified Money Market
                      Fund may purchase may subject the Fund to investment risks
                      that differ in some respects from those related to
                      investments in obligations of U.S. issuers. These risks
                      include adverse political and economic developments,
                      possible imposition of withholding taxes on interest
                      income, possible seizure, nationalization, or
                      expropriation of foreign investments, possible
                      establishment of exchange controls, or adoption of other
 
                                       23
<PAGE>   368
 
                      foreign governmental restrictions which might adversely
                      affect the payment of principal and interest on such
                      obligations. In addition, foreign branches of U.S. banks
                      and foreign banks may be subject to less stringent reserve
                      requirements and different accounting, auditing,
                      reporting, and recordkeeping standards than those
                      applicable to domestic branches of U.S. banks.
 
                        Certain risks are inherent in the California Tax-Free
                      Money Market Fund's concentrated investment in California
                      Municipal Securities, which may make an investment in the
                      Fund riskier than an investment in other types of money
                      market funds. Because of the California Tax-Free Money
                      Market Fund's investment objective, many of the securities
                      in its portfolio are likely to be obligations of
                      California governmental issuers that rely in whole or in
                      part, directly or indirectly, on real property taxes as a
                      source of revenue. The ability of the State of California
                      and its political sub-divisions to generate revenue
                      through real property and other taxes and to increase
                      spending has been significantly restricted by various
                      constitutional and statutory amendments and voter-passed
                      initiatives. Such limitations could affect the ability of
                      California state and municipal issuers to pay interest or
                      repay principal on their obligations. In addition, during
                      the first half of the decade, California faced severe
                      economic and fiscal conditions and experienced recurring
                      budget deficits that caused it to deplete its available
                      cash resources and to become increasingly dependent upon
                      external borrowings to meet its cash needs.
 
                        The financial difficulties experienced by the State of
                      California and other issuers of California Municipal
                      Securities during the recession have resulted in the
                      credit ratings of certain of their obligations being
                      downgraded significantly by the major rating agencies.
 
                        A more detailed description of special factors affecting
                      investments in obligations of California governmental
                      issuers of which investors should be aware is set forth in
                      the Statement of Additional Information.
 
INVESTMENT
LIMITATIONS             The Diversified Money Market Fund, the U.S. Government
                      Money Market Fund and the 100% U.S. Treasury Money Market
                      Fund may not:
 
                           1) Purchase securities of any one issuer, other than
                      obligations issued or guaranteed by the U.S. Government,
                      its agencies, or instrumentalities, if, immediately after
                      the purchase, more than 5% of the value of the Fund's
                      total assets would be invested in such issuer (except that
                      up to 25% of the value of the Fund's total assets may be
                      invested without regard to the 5% limitation). (As
                      indicated below, the Funds have adopted a non-fundamental
                      investment policy that is more restrictive than this
                      fundamental investment limitation);
 
                                       24
<PAGE>   369
 
                           2) Purchase any securities that would cause more than
                      25% of the value of the Fund's total assets at the time of
                      purchase to be invested in the securities of one or more
                      issuers conducting their principal business activities in
                      the same industry, provided that (a) there is no
                      limitation with respect to obligations issued or
                      guaranteed by the U.S. Government, its agencies, or
                      instrumentalities, domestic bank certificates of deposit
                      or bankers' acceptances, and repurchase agreements secured
                      by bank instruments or obligations of the U.S. Government,
                      its agencies, or instrumentalities; (b) wholly owned
                      finance companies will be considered to be in the
                      industries of their parents if their activities are
                      primarily related to financing the activities of their
                      parents; and (c) utilities will be divided according to
                      their services (for example, gas, gas transmission,
                      electric and gas, electric and telephone will each be
                      considered a separate industry).
 
                           3) Make loans, except that a Fund may purchase or
                      hold debt instruments, lend portfolio securities, and
                      enter into repurchase agreements as permitted by its
                      individual investment objective and policies.
 
                        The California Tax-Free Money Market Fund may not:
 
                           4) Purchase securities of any one issuer, other than
                      obligations issued or guaranteed by the U.S. Government,
                      its agencies, or instrumentalities, if, immediately after
                      the purchase, more than 5% of the value of its total
                      assets would be invested in such issuer (except that up to
                      25% of the value of the Fund's total assets may be
                      invested without regard to the 5% limitation). For
                      purposes of this investment restriction, a security is
                      considered to be issued by the government entity (or
                      entities) whose assets and revenues back the security or,
                      with respect to a private activity bond that is backed
                      only by the assets and revenues of a non-governmental
                      user, by the non-governmental user;
 
                           5) Purchase any securities that would cause 25% or
                      more of such Fund's total assets at the time of purchase
                      to be invested in the securities of one or more issuers
                      conducting their principal business activities in the same
                      industry; provided that this limitation shall not apply to
                      securities of the U.S. Government, its agencies or
                      instrumentalities or Municipal Securities or governmental
                      guarantees of Municipal Securities; and provided, further,
                      that for the purpose of this limitation, private activity
                      bonds that are backed only by the assets and revenues of a
                      non-governmental user shall not be deemed to be Municipal
                      Securities.
 
                           6) Make loans; except that the Fund may purchase or
                      hold debt instruments, lend portfolio securities and enter
                      into repurchase agreements as permitted by its investment
                      objective and policies.
 
                        The foregoing percentages will apply at the time of the
                      purchase of a security. The investment limitations listed
                      above are fundamental policies the substance of which may
                      not be changed without a vote of a majority of the
                      outstanding Shares
 
                                       25
<PAGE>   370
 
                      of the respective Fund. Additional fundamental and
                      non-fundamental investment limitations are set forth in
                      the Statement of Additional Information.
 
                        The Diversified Money Market Fund, the Government
                      Obligations Money Market Fund, and the 100% U.S. Treasury
                      Money Market Fund have each adopted, in accordance with
                      Rule 2a-7, a non-fundamental policy providing that the 5%
                      limit noted in limitation (1) above shall apply to 100% of
                      each Fund's assets. Notwithstanding, each such Fund may
                      invest up to 25% of its assets in First Tier qualified
                      securities of a single issuer for up to three business
                      days.
 
                      Valuation of Shares
 
                        Each Fund's net asset value per share is determined by
                      the Administrator as of 1:00 p.m. Eastern Time on days on
                      which both the New York Stock Exchange and the Federal
                      Reserve wire system are open for business. Net asset value
                      per share for purposes of pricing sales and redemptions
                      for each of the Funds is calculated by adding the value of
                      all securities and other assets belonging to a Fund,
                      subtracting its liabilities, and dividing the result by
                      the total number of the Fund's outstanding shares,
                      irrespective of class.
 
                        The assets in each Fund are valued based upon the
                      amortized cost method whereby HighMark seeks to maintain a
                      Fund's net asset value per Share at $1.00, although there
                      can be no assurance that a stable net asset value of $1.00
                      per Share will be maintained. For further information
                      concerning the use of the amortized cost method of
                      valuation, see the Statement of Additional Information.
 
HOW TO
PURCHASE SHARES         As noted above, each Fund is divided into two classes of
                      Shares, Retail and Fiduciary. For a description of
                      investors who qualify to purchase Fiduciary Shares, see
                      the Fiduciary Shares prospectus of the Money Market Funds.
                      HighMark's Retail Shares are offered to investors who are
                      not fiduciary clients of Union Bank of California, N.A.,
                      and who are not otherwise eligible for HighMark's
                      Fiduciary class.
 
                        Retail Shares are sold on a continuous basis by
                      HighMark's Distributor, SEI Financial Services Company.
                      The principal office of the Distributor is Oaks,
                      Pennsylvania 19456. If you wish to purchase Shares, you
                      may contact your investment professional or telephone
                      HighMark at 1-800-433-6884.
 
                        The minimum initial investment is generally $1,000 for
                      each Fund and the minimum subsequent investment is
                      generally only $100. For present and retired directors,
                      officers, and employees (and their spouses and children
                      under the age of 21) of Union Bank of California, SEI
                      Financial Services Company and their affiliates, the
                      minimum initial investment is $250 and the minimum
                      subsequent investment is $50. A Fund's initial and
                      subsequent minimum purchase amounts may be waived if
                      purchases are made in connection with Individual
                      Retirement
 
                                       26
<PAGE>   371
 
                      Accounts, Keoghs, payroll deduction plans, 401(k) or
                      similar programs or accounts. Purchases and redemption of
                      Shares of the Funds may be made on any Business Day.
 
                        Purchase orders will be effective on the Business Day
                      made if the Distributor receives an order before 8:00
                      a.m., Pacific time (11:00 a.m., Eastern time) for the
                      California Tax-Free Money Market Fund, 9:00 a.m., Pacific
                      time (12:00 noon, Eastern time) for the 100% U.S. Treasury
                      Money Market Fund and 10:00 a.m., Pacific time (1:00 p.m.,
                      Eastern time) for the Diversified Money Market and U.S.
                      Government Money Market Funds, on any Business Day.
                      Otherwise, the purchase order will be effective the next
                      Business Day. Effectiveness of a purchase order on any
                      Business Day is contingent on the Custodian's receipt of
                      Federal funds before 11:00 a.m., Pacific time (2:00 p.m.,
                      Eastern time), on such day. The purchase price is the net
                      asset value per Share, which is expected to remain
                      constant at $1.00. The net asset value per Share is
                      calculated as of 10:00 a.m., Pacific time (1:00 p.m.,
                      Eastern time) each Business Day based on the amortized
                      cost method. The net asset value per Share of a Fund is
                      determined by dividing the total value of its investments
                      and other assets, less any liabilities, by the total
                      number of its outstanding Shares. HighMark reserves the
                      right to reject a purchase order when the Distributor or
                      the Advisor determines that it is not in the best interest
                      of HighMark and/or Shareholder(s).
 
                        Shares of the Fund are offered only to residents of
                      states in which the shares are eligible for purchase.
 
                      How to Purchase By Mail
 
                        You may purchase Shares of the Diversified Money Market,
                      U.S. Government Obligations Money Market, 100% U.S.
                      Treasury Obligations Money Market, and California Tax-Free
                      Money Market Funds by completing and signing an Account
                      Application form and mailing it, along with a check (or
                      other negotiable bank instrument or money order) payable
                      to "HighMark Funds (Fund Name)," to the transfer agent at
                      P.O. Box 8416, Boston, Massachusetts 02266-8416. All
                      purchases made by check should be in U.S. dollars and made
                      payable to "HighMark Funds (Fund Name)." Third party
                      checks, credit card checks or cash will not be accepted.
                      You may purchase more Shares at any time by mailing
                      payment also to the transfer agent at the above address.
                      Orders placed by mail will be executed on receipt of your
                      payment. If your check does not clear, your purchase will
                      be canceled and you could be liable for any losses or fees
                      incurred.
 
                        You may obtain Account Application Forms for the
                      Diversified Money Market, U.S. Government Obligations
                      Money Market, 100% U.S. Treasury Obligations Money Market,
                      and California Tax-Free Money Market Funds by calling the
                      Distributor at 1-800-433-6884.
 
                                       27
<PAGE>   372
 
                      How to Purchase By Wire
 
                        You may purchase Shares of the Diversified Money Market,
                      U.S. Government Obligations Money Market, 100% U.S.
                      Treasury Obligations Money Market, and California Tax-Free
                      Money Market Funds by wiring Federal funds, provided that
                      your Account Application has been previously received. You
                      must wire funds to the transfer agent and the wire
                      instructions must include your account number. You must
                      call the transfer agent at 1-800-433-6884 before wiring
                      any funds. An order to purchase Shares by Federal funds
                      wire will be deemed to have been received by a Fund on the
                      Business Day of the wire; provided that the Shareholder
                      wires funds to the transfer agent prior to 11:00 a.m.,
                      Pacific time (2:00 p.m., Eastern time). If the transfer
                      agent does not receive the wire by 11:00 a.m., Pacific
                      time (2:00 p.m. Eastern time), the order will be executed
                      on the next Business Day.
 
                      How to Purchase through an Automatic Investment Plan
                      ("AIP")
 
                        You may arrange for periodic additional investments in
                      the Diversified Money Market, U.S. Government Obligations
                      Money Market, 100% U.S. Treasury Obligations Money Market,
                      and California Tax-Free Money Market Funds through
                      automatic deductions by Automated Clearing House ("ACH")
                      from a checking account by completing this section in the
                      Account Application form. The minimum pre-authorized
                      investment amount is $100 per month. The AIP is available
                      only for additional investments to an existing account.
 
                      How to Purchase Through Financial Institutions
 
                        Shares of the Funds may be purchased through financial
                      institutions, including the Advisor, that provide
                      distribution assistance or Shareholder services. Shares
                      purchased by persons ("Customers") through financial
                      institutions may be held of record by the financial
                      institution. Financial institutions may impose an earlier
                      cut-off time for receipt of purchase orders directed
                      through them to allow for processing and transmittal of
                      these orders to the transfer agent for effectiveness the
                      same day. Customers should contact their financial
                      institution for information as to that institution's
                      procedures for transmitting purchase, exchange or
                      redemption orders to HighMark.
 
                        Customers who desire to transfer the registration of
                      Shares beneficially owned by them but held of record by a
                      financial institution should contact the institution to
                      accomplish such change.
 
                        Depending upon the terms of a particular Customer
                      account, a financial institution may charge a Customer
                      account fees. Information concerning these services and
                      any charges will be provided to the Customer by the
                      financial institution.
 
                                       28
<PAGE>   373
 
EXCHANGE
PRIVILEGES              As indicated under GENERAL INFORMATION--Description of
                      HighMark & Its Shares, certain of HighMark's Funds issue
                      two classes of Shares (Retail Shares and Fiduciary
                      Shares); as of the date of this Prospectus, the
                      Distribution Plan and distribution fee payable thereunder
                      are applicable only to such Fund's Retail Shares. A
                      Shareholder's eligibility to exchange into a particular
                      class of Shares will be determined at the time of the
                      exchange. The Shareholder must supply, at the time of the
                      exchange, the necessary information to permit confirmation
                      of qualification.
 
                        Each Fund's Shares may be exchanged for Shares of the
                      class of the various other Funds of HighMark which the
                      Shareholder qualifies to purchase directly so long as the
                      Shareholder maintains the applicable minimum account
                      balance in each Fund in which he or she owns Shares and
                      satisfies the minimum initial and subsequent purchase
                      amounts of the Fund into which the Shares are exchanged.
                      Shareholders may exchange their Retail Shares for Retail
                      Shares of a Fund with the same or lower sales charge on
                      the basis of the relative net asset value of the Retail
                      Shares exchanged. Shareholders may exchange their Retail
                      Shares for Retail Shares of a Fund with a higher sales
                      charge by paying the difference between the two sales
                      charges. Shareholders may also exchange Retail Shares of a
                      money market fund for which no sales load was paid for
                      Retail Shares of another HighMark Fund. Under such
                      circumstances, the cost of the acquired Retail Shares will
                      be the net asset value per share plus the appropriate
                      sales load. If Retail Shares of the money market fund were
                      acquired in a previous exchange involving Shares of a
                      non-money market HighMark Fund, then such Shares of the
                      money market fund may be exchanged for Shares of the
                      non-money market HighMark Fund without payment of any
                      additional sales load within a twelve month period. In
                      order to receive a reduced sales charge when exchanging
                      into a Fund, the Shareholder must notify HighMark that a
                      sales charge was originally paid and provide sufficient
                      information to permit confirmation of qualification.
 
                        Exchanges will be made on the basis of the relative net
                      asset values of the Shares exchanged plus any applicable
                      sales charge. Exchanges are subject to the terms and
                      conditions stated herein and the terms and conditions
                      stated in the respective prospectuses of the Funds.
 
                        Certain entities (including Participating Organizations
                      and Union Bank of California and its affiliates), however,
                      may charge customers a fee with respect to exchanges made
                      on the customer's behalf. Information about these charges,
                      if any, can be obtained by the entity effecting the
                      exchange and this Prospectus should be read in conjunction
                      with that information.
 
                        A Shareholder wishing to exchange Shares in a Fund may
                      do so by contacting the transfer agent at 1-800-433-6884.
                      Exchanges will be effected on any Business
 
                                       29
<PAGE>   374
 
                      Day at the net asset value of the Funds involved in the
                      exchange next determined after the exchange request is
                      received by the transfer agent.
 
                        An exchange is considered to be a sale of Shares for
                      federal income tax purposes on which a Shareholder may
                      realize a capital gain or loss. Exchange privileges may be
                      exercised only in those states where Shares of such other
                      Funds of HighMark may legally be sold. HighMark may
                      materially amend or terminate the exchange privileges
                      described herein upon sixty days' notice.
 
REDEMPTION
OF SHARES               You may redeem your Shares of the Diversified Money
                      Market, U.S. Government Obligations Money Market, 100%
                      U.S. Treasury Obligations Money Market, and California
                      Tax-Free Money Market Funds without charge on any Business
                      Day. There is presently a $15 charge for wiring redemption
                      proceeds to a Shareholder's designated account. Shares may
                      be redeemed by mail, by telephone or through a
                      pre-arranged systematic withdrawal plan. Investors who own
                      Shares held by a financial institution should contact that
                      institution for information on how to redeem Shares.
 
                      By Mail
 
                        A written request for redemption of Shares of the
                      Diversified Money Market, U.S. Government Obligations
                      Money Market, 100% U.S. Treasury Obligations Money Market,
                      and California Tax-Free Money Market Funds must be
                      received by the transfer agent, P.O. Box 8416, Boston,
                      Massachusetts 02266-8416 in order to constitute a valid
                      redemption request.
 
                        If the redemption request exceeds $5,000, or if the
                      request directs the proceeds to be sent or wired to an
                      address different from that of record, the transfer agent
                      may require that the signature on the written redemption
                      request be guaranteed. You should be able to obtain a
                      signature guarantee from a bank, broker dealer, credit
                      union, securities exchange or association, clearing agency
                      or savings association. Notaries public cannot guarantee
                      signatures. The signature guarantee requirement will be
                      waived if all of the following conditions apply: (1) the
                      redemption is for not more than $5,000 worth of Shares,
                      (2) the redemption check is payable to the shareholder(s)
                      of record, and (3) the redemption check is mailed to the
                      shareholder(s) at his or her address of record.
 
                      Telephone Transactions
 
                        You may redeem your Shares of the Diversified Money
                      Market, U.S. Government Obligations Money Market, 100%
                      U.S. Treasury Obligations Money Market, and California
                      Tax-Free Money Market Funds by calling the transfer agent
                      at 1-800-433-6884. Under most circumstances, payments will
                      be transmitted on the next Business Day following receipt
                      of a valid request for redemption. You may have the
                      proceeds mailed to your address or wired to a
 
                                       30
<PAGE>   375
 
                      commercial bank account previously designated on your
                      Account Application. There is no charge for having
                      redemption proceeds mailed to you, but there is a $15
                      charge for wiring redemption proceeds.
 
                        You may request a wire redemption for redemptions of
                      Shares of the Diversified Money Market, U.S. Government
                      Obligations Money Market, 100% U.S. Treasury Obligations
                      Money Market, and California Tax-Free Money Market Funds
                      in excess of $500 by calling the transfer agent at
                      1-800-433-6884 who will deduct a wire charge of $15 from
                      the amount of the wire redemption. Shares cannot be
                      redeemed by Federal Reserve wire on Federal holidays
                      restricting wire transfers.
 
                        Neither the transfer agent nor HighMark will be
                      responsible for any loss, liability, cost or expense for
                      acting upon wire or telephone instructions that it
                      reasonably believes to be genuine. HighMark and the
                      transfer agent will each employ reasonable procedures to
                      confirm that instructions, communicated by telephone are
                      genuine. Such procedures may include taping of telephone
                      conversations.
 
                        If market conditions are extraordinarily active or other
                      extraordinary circumstances exist, and you experience
                      difficulties placing redemption orders by telephone, you
                      may consider placing your order by mail.
 
                      Systematic Withdrawal Plan ("SWP")
 
                        The Diversified Money Market, U.S. Government
                      Obligations Money Market, 100% U.S. Treasury Obligations
                      Money Market, and California Tax-Free Money Market Funds
                      offer a Systematic Withdrawal Plan ("SWP"), which you may
                      use to receive regular distributions from your account.
                      Upon commencement of the SWP, your account must have a
                      current net asset value of $5,000 or more. You may elect
                      to receive automatic payments via check or ACH of $100 or
                      more on a monthly, quarterly, semi-annual or annual basis.
                      You may arrange to receive regular distributions from your
                      account via check or ACH by completing this section in the
                      Account Application form.
 
                        To participate in the SWP, you must have your dividends
                      automatically reinvested. You should realize that if your
                      automatic withdrawals exceed income dividends, your
                      invested principal in the account will be depleted. Thus,
                      depending on the frequency and amounts of the withdrawal
                      payments and/or any fluctuations in the net asset value
                      per Share, your original investment could be exhausted
                      entirely. You may change or cancel the SWP at any time on
                      written notice to the transfer agent. The transfer agent
                      may require that the signature on the written notice be
                      guaranteed.
 
                                       31
<PAGE>   376
 
                      Other Information Regarding Redemptions
 
                        HighMark is required to redeem for cash all full and
                      fractional shares of HighMark. The redemption price is the
                      net asset value per share of a Fund (normally $1.00 per
                      share).
 
                        Redemption orders may be made any time before 8:00 a.m.,
                      Pacific time (11:00 a.m., Eastern time) for the California
                      Tax-Free Money Market Fund, 9:00 a.m., Pacific time (12:00
                      noon, Eastern time) for the 100% U.S. Treasury Money
                      Market Fund and 10:00 a.m., Pacific time (1:00 p.m.,
                      Eastern time) for the Diversified Money Market and U.S.
                      Government Money Market Funds in order to receive that
                      day's redemption price (i.e., the next determined net
                      asset value per share). For redemption orders received
                      before such times, payment will be made the same day by
                      transfer of federal funds. Otherwise, payment will be made
                      on the next Business Day. Redeemed shares are not entitled
                      to dividends declared the day the redemption order is
                      effective. The Funds reserve the right to make payment on
                      redemptions in securities rather than cash.
 
                        Payment to the Shareholders for Shares redeemed will be
                      made within seven days after the Transfer Agent receives
                      the valid redemption request. At various times, however, a
                      Fund may be requested to redeem Shares for which it has
                      not yet received good payment; collection of payment may
                      take ten or more days. In such circumstances, the
                      redemption request will be rejected by the Fund. Once a
                      Fund has received good payment for the Shares a
                      Shareholder may submit another request for redemption.
 
                        Due to the relatively high costs of handling small
                      investments, each Fund reserves the right to redeem your
                      Shares at net asset value if your account in any Fund has
                      a value of less than the minimum initial purchase amount.
                      Accordingly, if you purchase Shares of any Fund in only
                      the minimum investment amount, you may be subject to
                      involuntary redemption if you redeem any Shares. Before
                      any Fund exercises its right to redeem such Shares you
                      will be given notice that the value of the Shares in your
                      account is less than the minimum amount and will be
                      allowed 60 days to make an additional investment in such
                      Fund in an amount which will increase the value of the
                      account to at least the minimum amount.
 
DIVIDENDS               The net income of each Fund is declared daily as a
                      dividend to Shareholders of record at the close of
                      business on the day of declaration. The net income
                      attributable to a Fund's Retail Shares and the dividends
                      payable on Retail Shares will be reduced by the
                      distribution fee assessed against such Shares under the
                      Distribution Plan (see SERVICE ARRANGEMENTS--The
                      Distribution Plan below).
 
                                       32
<PAGE>   377
 
                        Dividends with respect to each Fund are paid monthly in
                      additional full and fractional Shares of the Fund at net
                      asset value as of the date of payment, unless the
                      Shareholder elects to receive such dividends in cash as
                      described below. Shareholders will automatically receive
                      all income dividends and capital gains distributions (if
                      any) paid in respect of a Fund's Shares in additional full
                      and fractional Shares of the same class. Shareholders
                      wishing to receive their dividends in cash (or wishing to
                      revoke a previously made election) must notify the
                      transfer agent at P.O. Box 8416, Boston, MA 02266-8416,
                      and such election (or revocation thereof) will become
                      effective with respect to dividends having record dates
                      after notice has been received. Dividends paid in
                      additional Shares receive the same tax treatment as
                      dividends paid in cash. Dividends are paid in cash not
                      later than seven Business Days after a Shareholder's
                      complete redemption of his or her Shares. Net realized
                      capital gains, if any, are distributed at least annually
                      to Shareholders of record.
 
FEDERAL
TAXATION                Each Fund intends to qualify for treatment as a
                      "regulated investment company" under the Internal Revenue
                      Code of 1986, as amended (the "Code"), and to distribute
                      substantially all of its net investment income so that it
                      is not required to pay federal taxes on these amounts.
                      Because all of the net investment income of the
                      Diversified Money Market Fund, the U.S. Government Money
                      Market Fund, the 100% U.S. Treasury Money Market Fund and
                      the California Tax-Free Money Market Fund is expected to
                      be derived from interest, it is anticipated that no part
                      of any distribution will be eligible for the federal
                      dividends received deduction for corporations. The Funds
                      are not managed to generate any long-term capital gains
                      and, therefore, the Funds do not foresee paying any
                      significant "capital gains dividends" as described in the
                      Code.
 
                        Shareholders will be subject to federal income tax with
                      respect to dividends paid by the Diversified Money Market
                      Fund, the U.S. Government Money Market Fund and the 100%
                      U.S. Treasury Money Market Fund (including any capital
                      gains dividends). Dividends that are attributable to
                      interest on U.S. Government obligations earned by the
                      Funds may be exempt from state and local tax, and
                      Shareholders should consult their own tax advisors to
                      determine whether these dividends are eligible for the
                      state and local tax exemption. Dividends (except to the
                      extent attributable to gains or securities lending income)
                      paid by the 100% U.S. Treasury Money Market Fund will be
                      exempt from California and Oregon personal income taxes.
                      HighMark intends to advise Shareholders annually of the
                      proportion of a Fund's dividends that consists of interest
                      on U.S. Government obligations.
 
                        Exempt-interest dividends from the California Tax-Free
                      Money Market Fund are excludable from gross income for
                      federal income tax purposes. Such dividends may be taxable
                      to Shareholders under state or local law as ordinary
                      income even
 
                                       33
<PAGE>   378
 
                      though all or a portion of the amounts may be derived from
                      interest on tax-exempt obligations which, if realized
                      directly, would be exempt from such taxes. Shareholders
                      are advised to consult a tax advisor with respect to
                      whether exempt-interest dividends retain the exclusion if
                      such Shareholder would be treated as a "substantial user"
                      or a "related person" to such user under the Code.
 
                        Under the Code, interest on indebtedness incurred or
                      continued by a Shareholder to purchase or carry Shares of
                      the California Tax-Free Money Market Fund is not
                      deductible for federal income tax purposes to the extent
                      the Fund distributes exempt-interest dividends during the
                      Shareholder's taxable year.
 
                        Under the Code, if a Shareholder sells a Share of the
                      California Tax-Free Money Market Fund after holding it for
                      six months or less, any loss on the sale or exchange of
                      such Share will be disallowed to the extent of the amount
                      of any exempt-interest dividends that the Shareholder has
                      received with respect to the Share that is sold.
 
                        In addition, any loss (not already disallowed as
                      provided in the preceding sentence) realized upon a
                      taxable disposition of shares held for six months or less
                      will be treated as long-term, rather than short-term, to
                      the extent of any long-term capital gain distributions
                      received by the shareholder with respect to the shares.
 
                        The California Tax-Free Money Market Fund may at times
                      purchase Municipal Securities at a discount from the price
                      at which they were originally issued. For federal income
                      tax purposes, some or all of this market discount will be
                      included in the California Tax-Free Money Market Fund's
                      ordinary income and will be taxable to Shareholders as
                      such when it is distributed to them.
 
                        To the extent dividends paid to Shareholders are derived
                      from taxable income (for example, from interest on
                      certificates of deposit or repurchase agreements), or from
                      long-term or short-term capital gains, such dividends will
                      be subject to federal income tax, whether such dividends
                      are paid in the form of cash or additional Shares. A
                      Shareholder should consult his or her tax advisor for
                      special advice.
 
                        Under the Code, dividends attributable to interest on
                      certain private activity bonds issued after August 7, 1986
                      must be included in alternative minimum taxable income for
                      the purpose of determining liability (if any) for the
                      federal alternative minimum tax. In addition,
                      exempt-interest dividends will be included in a
                      corporation's "adjusted current earnings" for purposes of
                      the alternative minimum tax (except to the extent derived
                      from interest on certain private activity bonds issued
                      after August 7, 1986, which interest would already be
                      included in alternative minimum taxable income as a
                      specific item of tax preference). Shareholders of the
                      California Tax-Free Money Market Fund
 
                                       34
<PAGE>   379
 
                      receiving social security or railroad retirement benefits
                      may be taxed on a portion of those benefits as a result of
                      receiving tax-exempt income (including exempt-interest
                      dividends distributed by the California Tax-Free Money
                      Market Fund).
 
                        If, at the close of each quarter of its taxable year,
                      the California Tax-Free Money Market Fund continues to
                      qualify for the special federal income tax treatment
                      afforded regulated investment companies and at least 50%
                      of the value of the Fund's total assets consists of
                      California Exempt-Interest Securities, then "California
                      exempt interest dividends" attributable to these
                      securities will be exempt from California personal income
                      tax. A "California-exempt interest dividend" is any
                      dividend distributed by the Fund to the extent that it is
                      derived from the interest received by the Fund on
                      California Exempt-Interest Securities (less related
                      expenses) and designated as such by written notice to
                      Shareholders. For further details, see the Statement of
                      Additional Information. Dividends received by Shareholders
                      subject to California state corporate franchise tax will
                      be taxed as ordinary dividends notwithstanding that all or
                      a portion of such dividends are exempt from California
                      personal income tax. Distributions other than
                      "California-exempt interest dividends" by the Fund to
                      California residents will be subject to California
                      personal income tax, whether or not such dividends are
                      reinvested.
 
                        Additional information regarding federal and California
                      taxes is contained in the Statement of Additional
                      Information. However, the foregoing and the material in
                      the Statement of Additional Information are only brief
                      summaries of some of the important tax considerations
                      generally affecting a money market fund and its
                      Shareholders. In addition, the foregoing discussion and
                      the federal and California tax information in the
                      Statement of Additional Information are based on tax laws
                      and regulations which are in effect as of the date of this
                      Prospectus; these laws and regulations may subsequently
                      change, and such changes could be retroactive.
                      Shareholders will be advised at least annually as to the
                      federal income tax status, and, in the case of
                      Shareholders of the California Tax-Free Money Market Fund,
                      as to the California income tax status, of distributions
                      made during the year.
 
SERVICE
ARRANGEMENTS          The Advisor
 
                        Pacific Alliance Capital Management, a division of Union
                      Bank of California, serves as the Funds' investment
                      advisor. Subject to the general supervision of HighMark's
                      Board of Trustees, the Advisor manages each Fund in
                      accordance with its investment objective and policies,
                      makes decisions with respect to and places orders for all
                      purchases and sales of the Fund's investment securities,
                      and maintains the Fund's records relating to such
                      purchases and sales.
 
                                       35
<PAGE>   380
 
                        For the expenses assumed and services provided by the
                      Advisor as each Fund's investment advisor, Union Bank of
                      California receives a fee from the Diversified Money
                      Market Fund, the U.S. Government Money Market Fund, the
                      100% U.S. Treasury Money Market Fund and the California
                      Tax-Free Money Market Fund, computed daily and paid
                      monthly, at the annual rate of thirty one-hundredths of
                      one percent (.30%) of each Fund's average daily net
                      assets. Union Bank of California may from time to time
                      agree to voluntarily reduce its advisory fee. While there
                      can be no assurance that Union Bank of California will
                      choose to make such an agreement, any voluntary reductions
                      in Union Bank of California's advisory fee will lower the
                      Fund's expenses, and thus increase the Fund's yield and
                      total return, during the period such voluntary reductions
                      are in effect. During HighMark's fiscal year ended July
                      31, 1996, Union Bank of California received investment
                      advisory fees from the Diversified Money Market Fund, the
                      U.S. Government Money Market Fund, and the 100% U.S.
                      Treasury Money Market Fund aggregating 0.40% of each
                      Fund's average daily net assets, and from the California
                      Tax-Free Money Market Fund aggregating 0.23% of the Fund's
                      average daily net assets.
 
                        On April 1, 1996, The Bank of California, N.A.,
                      HighMark's then investment advisor, combined with Union
                      Bank and the resulting bank changed its name to Union Bank
                      of California, N.A. At the same time, the banks'
                      investment management divisions were combined. Each of
                      Union Bank and The Bank of California, N.A. (or their
                      predecessor banks) has been in banking since the early
                      1900's and, historically, each has had significant
                      investment functions within its trust and investment
                      division. UnionBanCal Corporation, the parent of Union
                      Bank of California, N.A., is a publicly held corporation,
                      but is principally held by the Bank of Tokyo-Mitsubishi,
                      Limited. As of September 30, 1996, Union Bank of
                      California and its subsidiaries had approximately $28.7
                      billion in commercial assets. Pacific Alliance Capital
                      Management is a division of Union Bank of California's
                      Trust and Investment Management Group, which, as of June
                      30, 1996, had approximately $13.4 billion of assets under
                      management. The Advisor, with a team of approximately 45
                      stock and bond research analysts, portfolio managers and
                      traders, has been providing investment management services
                      to individuals, institutions and large corporations since
                      1917.
 
                      Administrator
 
                        SEI Fund Resources (the "Administrator") and HighMark
                      are parties to an administration agreement (the
                      "Administration Agreement"). Under the terms of the
                      Administration Agreement, the Administrator provides
                      HighMark with certain management services, including all
                      necessary office space, equipment, personnel, and
                      facilities.
 
                                       36
<PAGE>   381
 
                        The Administrator is entitled to a fee, which is
                      calculated daily and paid monthly, at an annual rate of
                      .20% of the average daily net assets of the Funds. The
                      Administrator may waive its fee or reimburse various
                      expenses to the extent necessary to limit the total
                      operating expenses of a Fund's Retail Shares. Any such
                      waiver is voluntary and may be terminated at any time in
                      the Administrator's sole discretion. Currently, the
                      Administrator has agreed to waive its fee to the rate of
                      .18% of the average daily net assets of the Funds.
 
                        Pursuant to a separate agreement with the Administrator,
                      Union Bank of California, N.A. performs sub-administration
                      services on behalf of each Fund, for which it receives a
                      fee paid by the Administrator at the annual rate of up to
                      0.05% of the average daily net assets of the Funds. Union
                      Bank of California has voluntarily agreed to reduce this
                      fee to 0.03%, but reserves the right to terminate its
                      waiver at any time in its sole discretion. A description
                      of the services performed by Union Bank of California
                      pursuant to this Agreement is contained in the Statement
                      of Additional Information.
 
                      The Transfer Agent
 
                        State Street Bank and Trust Company serves as the
                      transfer agent, dividend disbursing agent, and as a
                      shareholder servicing agent for the Retail Shares of
                      HighMark, for which services it receives a fee.
 
                      Shareholder Service Plan
 
                        To support the provision of Shareholder services to both
                      classes of Shares, HighMark has adopted a Shareholder
                      Service Plan. A description of the services performed by
                      service providers pursuant to the Shareholder Service Plan
                      is contained in the Statement of Additional Information.
                      In consideration of services provided by any service
                      provider, which may include Union Bank of California,
                      N.A., Bank of Tokyo-Mitsubishi, Ltd., or their respective
                      affiliates, each Fund may pay a fee at the rate of up to
                      0.25% of its average daily net assets to such service
                      provider. The service provider may waive such fees at any
                      time. Any such waiver is voluntary and may be terminated
                      at any time. Currently, such fees are being waived to the
                      rate of 0.00% of average daily net assets.
 
                      Distributor
 
                        SEI Financial Services Company (the "Distributor") and
                      HighMark are parties to a distribution agreement
                      ("Distribution Agreement"). The Distribution Agreement is
                      renewable annually and may be terminated by the
                      Distributor, by a majority vote of the Disinterested
                      Trustees or by a majority vote of the outstanding
                      securities of HighMark upon not more than 60 days written
                      notice by either party, or upon assignment by the
                      Distributor.
 
                                       37
<PAGE>   382
 
                      The Distribution Plan
 
                        Pursuant to HighMark's Distribution Plan, each Fund pays
                      the Distributor as compensation for its services in
                      connection with the Distribution Plan a distribution fee,
                      computed daily and paid monthly, equal to twenty-five
                      one-hundredths of one percent (0.25%) of the average daily
                      net assets attributable to that Fund's Retail Shares.
 
                        The Distributor may use the distribution fee applicable
                      to a Fund's Retail Shares to provide distribution
                      assistance with respect to the sale of the Fund's Retail
                      Shares or to provide Shareholder services to the holders
                      of the Fund's Retail Shares. The Distributor may also use
                      the distribution fee (i) to pay financial institutions and
                      intermediaries (such as insurance companies and investment
                      counselors but not including banks and savings and loan
                      associations), broker-dealers, and the Distributor's
                      affiliates and subsidiaries compensation for services or
                      reimbursement of expenses incurred in connection with the
                      distribution of a Fund's Retail Shares to their customers
                      or (ii) to pay banks, savings and loan associations, other
                      financial institutions and intermediaries, broker-dealers,
                      and the Distributor's affiliates and subsidiaries
                      compensation for services or reimbursement of expenses
                      incurred in connection with the provision of Shareholder
                      services to their customers owning a Fund's Retail Shares.
                      All payments by the Distributor for distribution
                      assistance or Shareholder services under the Distribution
                      Plan will be made pursuant to an agreement between the
                      Distributor and such bank, savings and loan association,
                      other financial institution or intermediary,
                      broker-dealer, or affiliate or subsidiary of the
                      Distributor (a "Servicing Agreement"; banks, savings and
                      loan associations, other financial institutions and
                      intermediaries, broker-dealers, and the Distributor's
                      affiliates and subsidiaries that may enter into a
                      Servicing Agreement are hereinafter referred to
                      individually as a "Participating Organization"). A
                      Participating Organization may include Union Bank of
                      California, its subsidiaries and its affiliates.
 
                        Participating Organizations may charge customers fees in
                      connection with investments in a Fund on their customers'
                      behalf. Such fees would be in addition to any amounts the
                      Participating Organization may receive pursuant to its
                      Servicing Agreement. Under the terms of the Servicing
                      Agreements, Participating Organizations are required to
                      provide their customers with a schedule of fees charged
                      directly to such customers in connection with investments
                      in a Fund. Customers of Participating Organizations should
                      read this Prospectus in light of the terms governing their
                      accounts with the Participating Organization.
 
                        The distribution fee under the Distribution Plan will be
                      payable without regard to whether the amount of the fee is
                      more or less than the actual expenses incurred in a
                      particular year by the Distributor in connection with
                      distribution assistance or Shareholder services rendered
                      by the Distributor itself or incurred by the
 
                                       38
<PAGE>   383
 
                      Distributor pursuant to the Servicing Agreements entered
                      into under the Distribution Plan. The Distributor may from
                      time to time voluntarily reduce its distribution fee with
                      respect to a Fund in significant amounts for substantial
                      periods of time pursuant to an agreement with HighMark.
                      While there can be no assurance that the Distributor will
                      choose to make such an agreement, any voluntary reduction
                      in the Distributor's distribution fee will lower such
                      Fund's expenses, and thus increase such Fund's yield and
                      total returns, during the period such voluntary reductions
                      are in effect.
 
                      Banking Laws
 
                        Union Bank of California believes that it may perform
                      the services for the Funds contemplated by its investment
                      advisory agreement with HighMark without a violation of
                      applicable banking laws and regulations. Union Bank of
                      California also believes that it may perform
                      sub-administration and sub-accounting services on behalf
                      of each Fund without a violation of applicable banking
                      laws and regulations. Future changes in federal or state
                      statutes and regulations relating to permissible
                      activities of banks or bank holding companies and their
                      subsidiaries and affiliates, as well as further judicial
                      or administrative decisions or interpretations of present
                      and future statutes and regulations, could change the
                      manner in which Union Bank of California or the Advisor
                      could continue to perform such services for the Funds. For
                      a further discussion of applicable banking laws and
                      regulations, see the Statement of Additional Information.
 
                      Custodian
 
                        Union Bank of California also serves as the custodian
                      and as a shareholder servicing agent for the Funds. The
                      Custodian holds cash, securities and other assets of
                      HighMark as required by the 1940 Act.
 
                        Services performed by Union Bank of California, as the
                      Funds' shareholder servicing agent and custodian, as well
                      as the basis of remuneration for such services, are
                      described in the Statement of Additional Information.
 
GENERAL
INFORMATION           Description of HighMark & Its Shares
 
                        HighMark was organized as a Massachusetts business trust
                      on March 10, 1987, and consists of sixteen series of
                      Shares open for investment representing units of
                      beneficial interest in HighMark's Growth Fund, Income
                      Equity Fund, Balanced Fund, Value Momentum Fund, Blue Chip
                      Growth Fund, Emerging Growth Fund, International Equity
                      Fund, Bond Fund, Intermediate-Term Bond Fund, Government
                      Securities Fund, Convertible Securities Fund, California
                      Intermediate Tax-Free Bond Fund, Diversified Money Market
                      Fund, U.S. Government Money Market Fund, 100% U.S.
                      Treasury Money Market Fund and California Tax-Free Money
                      Market Fund. As of the date hereof, no Shares of the Value
 
                                       39
<PAGE>   384
 
                      Momentum Fund, the Blue Chip Growth Fund, the Emerging
                      Growth Fund, the International Equity Fund, the
                      Intermediate-Term Bond Fund, the Convertible Securities
                      Fund, the Government Securities Fund and the California
                      Intermediate Tax-Free Bond Fund had been offered for sale
                      in HighMark. Shares of each Fund are freely transferable,
                      are entitled to distributions from the assets of the Fund
                      as declared by the Board of Trustees, and, if HighMark
                      were liquidated, would receive the a pro rata share of net
                      assets attributable to that Fund. Shares are without par
                      value.
 
                        As noted above, pursuant to a Multiple Class Plan on
                      file with the Securities and Exchange Commission
                      permitting the issuance and sale of two classes of Shares
                      in selected Funds, Shares of such Funds have been divided
                      into two classes, designated Retail Shares and Fiduciary
                      Shares. For information regarding the Fiduciary Shares of
                      the Funds, interested persons may contact the Distributor
                      for a prospectus at 1-800-433-6884.
 
                        HighMark believes that as of November 22, 1996, there
                      was no person who owned of record or beneficially more
                      than 25% of the Retail Shares of the Diversified Money
                      Market Fund, the U.S. Government Money Market Fund, the
                      100% U.S. Treasury Money Market Fund, or the California
                      Tax-Free Money Market Fund.
 
                      Performance Information
 
                        From time to time, HighMark may advertise the "yield"
                      and "effective yield" with respect to the Retail Shares of
                      each Fund and a "tax-equivalent yield" and "tax-equivalent
                      effective yield" for federal, California and Oregon income
                      tax purposes with regard to the Retail Shares of each of
                      the 100% U.S. Treasury Money Market Fund and the
                      California Tax-Free Money Market Fund. Performance
                      information is computed separately for a Fund's Retail and
                      Fiduciary Shares in accordance with the formulas described
                      below. Each yield figure is based on historical earnings
                      and is not intended to indicate future performance.
 
                        The "yield" of a Fund's Retail Shares refers to the
                      income generated by an investment in the class over a
                      seven-day period (which period will be stated in the
                      advertisement). This income is then "annualized." That is,
                      the amount of income generated by the investment during
                      that week is assumed to be generated each week over a
                      52-week period and is shown as a percentage of the
                      investment. The "effective yield" is calculated similarly
                      but, when annualized, the income earned by an investment
                      in the class is assumed to be reinvested. The "effective
                      yield" will be slightly higher than the "yield" because of
                      the compounding effect of this assumed reinvestment.
 
                        The 100% U.S. Treasury Money Market Fund's
                      tax-equivalent yield and tax-equivalent effective yield
                      will reflect the amount of income subject to California
 
                                       40
<PAGE>   385
 
                      or Oregon personal income taxation at the rate specified
                      in the advertisement that a taxpayer would have to earn in
                      order to obtain the same after tax income as that derived
                      from the yield and effective yield of the Retail class.
                      The California Tax-Free Money Market Fund's tax-equivalent
                      yield and tax-equivalent effective yield reflect the
                      amount of income subject to federal income taxation and
                      California personal income taxation at the rate specified
                      in the advertisement that a taxpayer would have to earn in
                      order to obtain the same after tax income as that derived
                      from the yield and effective yield of the Retail class.
 
                        Tax-equivalent yields and tax-equivalent effective
                      yields with respect to a class will be significantly
                      higher than the yield and effective yield of that class.
 
                        From time to time, HighMark may advertise the aggregate
                      total return and average annual total return of the Funds.
                      The aggregate total return and average annual total return
                      of each Fund may be quoted for the life of each Fund and
                      for five-year and one-year periods, in each case, through
                      the most recent calendar quarter. Aggregate total return
                      is determined by calculating the change in the value of a
                      hypothetical $1,000 investment in a Fund over the
                      applicable period that would equate the initial amount
                      invested to the ending redeemable value of the investment.
                      The ending redeemable value includes dividends and capital
                      gain distributions reinvested at net asset value. Average
                      annual total return is calculated by annualizing a Fund's
                      aggregate total return over the relevant number of years.
                      The resulting percentage indicates the positive or
                      negative investment results that an investor in a Fund
                      would have experienced from changes in Share price and
                      reinvestment of dividends and capital gain distributions.
 
                        Each Fund may periodically compare its performance to
                      the performance of: other mutual funds tracked by
                      mutual-fund rating services (such as Lipper Analytical),
                      financial and business publications and periodicals; broad
                      groups of comparable mutual funds; unmanaged indices which
                      may assume investment of dividends but generally do not
                      reflect deductions for administrative and management
                      costs; or other investment alternatives. Certain Funds may
                      advertise performance that includes results from periods
                      in which the Fund's assets were managed in a
                      non-registered predecessor vehicle.
 
                      Miscellaneous
 
                        Shareholders will be sent unaudited semi-annual reports
                      and annual reports audited by independent public
                      accountants.
 
                        Shareholders are entitled to one vote for each Share
                      held in a Fund as determined on the record date for any
                      action requiring a vote by the Shareholders, and a
                      proportionate fractional vote for each fractional Share
                      held. Shareholders of HighMark will vote in the aggregate
                      and not by series or class except (i) as otherwise
                      expressly required by law or when HighMark's Board of
                      Trustees
 
                                       41
<PAGE>   386
 
                      determines that the matter to be voted upon affects only
                      the interests of the Shareholders of a particular series
                      or particular class, and (ii) only Retail Shares will be
                      entitled to vote on matters submitted to a Shareholder
                      vote relating to the Distribution Plan. HighMark is not
                      required to hold regular annual meetings of Shareholders,
                      but may hold special meetings from time to time.
 
                        HighMark's Trustees are elected by Shareholders, except
                      that vacancies may be filled by vote of the Board of
                      Trustees. Trustees may be removed by the Board of
                      Trustees, or by Shareholders at a meeting called for such
                      purpose. For information about how Shareholders may call
                      such a meeting and communicate with other Shareholders for
                      that purpose, see ADDITIONAL INFORMATION--Miscellaneous in
                      the Statement of Additional Information.
 
                        Inquiries may be directed in writing to SEI Financial
                      Services Company, Oaks, Pennsylvania 19456, or by calling
                      toll free 1-800-433-6884.
 
DESCRIPTION OF
PERMITTED
INVESTMENTS             The following is a description of permitted investments
                      for the HighMark Money Market Funds.
 
                        ASSET-BACKED SECURITIES (NON-MORTGAGE)--Debt Instruments
                      secured by company receivables, truck and auto loans,
                      leases, and credit card receivables. Such securities are
                      generally issued as pass-through certificates, which
                      represent undivided fractional ownership interests in the
                      underlying pools of assets. Such securities also may be
                      debt instruments, which are also known as collateralized
                      obligations and are generally issued as the debt of a
                      special purpose entity, such as a trust, organized solely
                      for the purpose of owning such assets and issuing such
                      debt. The purchase of non-mortgage asset-backed securities
                      raises risk considerations peculiar to the financing of
                      the instruments underlying such securities. Asset-backed
                      securities entail prepayment risk, which may vary
                      depending on the type of asset, but is generally less than
                      the prepayment risk associated with mortgage-backed
                      securities.
 
                        Like mortgages underlying mortgage-backed securities,
                      underlying automobile sales contracts or credit card
                      receivables are subject to substantial prepayment risk,
                      which may reduce the overall return to certificate
                      holders. Nevertheless, principal prepayment rates tend not
                      to vary as much in response to changes in interest rates
                      and the short-term nature of the underlying car loans or
                      other receivables tend to dampen the impact of any change
                      in the prepayment level. Certificate holders may also
                      experience delays in payment on the certificates if the
                      full amounts due on underlying sales contracts or
                      receivables are not realized by the trust because of
                      unanticipated legal or administrative costs of enforcing
                      the contracts or because of depreciation or damage to the
                      collateral (usually automobiles) securing certain
                      contracts, or other factors. If consistent with their
 
                                       42
<PAGE>   387
 
                      investment objectives and policies, the Money Market Funds
                      may invest in other asset-backed securities that may be
                      developed in the future.
 
                        BANKERS' ACCEPTANCES--Bills of exchange or time drafts
                      drawn on and accepted by commercial banks. They are used
                      by corporations to finance the shipment and storage of
                      goods and to furnish dollar exchange. Maturities are
                      generally six months or less.
 
                        CERTIFICATES OF DEPOSIT--Negotiable interest-bearing
                      instruments with a specific maturity. Certificates of
                      deposit are issued by banks and savings and loan
                      institutions in exchange for the deposit of funds and
                      normally can be traded in the secondary market prior to
                      maturity.
 
                        COMMERCIAL PAPER--Unsecured short-term promissory notes
                      issued by corporations and other entities. Maturities on
                      these issues vary from a few days to nine months. Purchase
                      of such instruments involves a risk of default by the
                      issuer.
 
                        DERIVATIVES--Instruments whose value is derived from an
                      underlying contract, index or security, or any combination
                      thereof, including futures, options (e.g., puts and
                      calls), options on futures, swap agreements, and some
                      mortgage-backed securities (CMOs, REMICs, IOs and POs).
                      See elsewhere in this "DESCRIPTION OF PERMITTED
                      INVESTMENTS" for discussions of these various instruments,
                      and see "INVESTMENT OBJECTIVES" and "INVESTMENT POLICIES"
                      for more information about any policies and limitations
                      applicable to their use.
 
                        INVESTMENT GRADE BONDS--Interest-bearing or discounted
                      government or corporate securities that obligate the
                      issuer to pay the bondholder a specified sum of money,
                      usually at specific intervals, and to repay the principal
                      amount of the loan at maturity. Investment grade bonds are
                      those rated BBB or better by S&P or Baa or better by
                      Moody's or similarly rated by other NRSROs, or, if not
                      rated, determined to be of comparable quality by the
                      Advisor.
 
                        LOAN PARTICIPATIONS--Loan participations are interests
                      in loans to U.S. corporations (i.e., borrowers) which are
                      administered by the lending bank or agent for a syndicate
                      of lending banks, and sold by the lending bank or
                      syndicate member ("intermediary bank"). In a loan
                      participation, the borrower of the underlying loan will be
                      deemed to be the issuer of the participation interest
                      (except to the extent a purchasing Fund derives its rights
                      from the intermediary bank). Because the intermediary bank
                      does not guarantee a loan participation in any way, a loan
                      participation is subject to the credit risks associated
                      with the underlying corporate borrower. In addition, in
                      the event the underlying corporate borrower fails to pay
                      principal and interest when due, a Fund may encounter
                      delays, expenses and risks that are greater than those
                      that would have been involved if the Fund had purchased a
                      direct obligation (such as commercial
 
                                       43
<PAGE>   388
 
                      paper) of such borrower because it may be necessary under
                      the terms of the loan participation, for the Fund to
                      assert its rights against the borrower through the
                      intermediary bank. Moreover, under the terms of a loan
                      participation, the purchasing Fund may be regarded as a
                      creditor of the intermediary bank (rather than of the
                      underlying corporate borrower), so that a Fund may also be
                      subject to the risk that the issuing bank may become
                      insolvent. Further, in the event of the bankruptcy or
                      insolvency of the corporate borrower, a loan participation
                      may be subject to certain defenses that can be asserted by
                      such borrower as a result of improper conduct by the
                      issuing bank. The secondary market, if any, for these loan
                      participations is limited, and any such participation
                      purchased by a Fund may be regarded as illiquid.
 
                        MUNICIPAL FORWARDS--Municipal Forwards are forward
                      commitments for the purchase of tax-exempt bonds with a
                      specified coupon to be delivered by an issuer at a future
                      date, typically exceeding 45 days but normally less than
                      one year after the commitment date. Municipal forwards are
                      normally used as a refunding mechanism for bonds that may
                      only be redeemed on a designated future date. As with
                      forward commitments and when-issued securities, municipal
                      forwards are subject to market fluctuations due to
                      changes, real or anticipated, in market interest rates
                      between the commitment date and the settlement date and
                      will have the effect of leveraging the Fund's assets.
                      Municipal forwards may be considered to be illiquid
                      investments. The Fund will maintain liquid, high-grade
                      securities in a segregated account in an amount at least
                      equal to the purchase price of the municipal forward.
 
                        MUNICIPAL SECURITIES--Municipal securities consist of
                      (i) debt obligations issued by or on behalf of public
                      authorities to obtain funds to be used for various public
                      facilities, for refunding outstanding obligations, for
                      general operating expenses and for lending such funds to
                      other public institutions and facilities, and (ii) certain
                      private activity and industrial development bonds issued
                      by or on behalf of public authorities to obtain funds to
                      provide for the construction, equipment, repair or
                      improvement of privately operated facilities. Municipal
                      notes include general obligation notes, tax anticipation
                      notes, revenue anticipation notes, bond anticipation
                      notes, certificates of indebtedness, demand notes and
                      construction loan notes. Municipal bonds include general
                      obligation bonds, revenue or special obligation bonds,
                      private activity and industrial development bonds. General
                      obligation bonds are backed by the taxing power of the
                      issuing municipality. Revenue bonds are backed by the
                      revenues of a project or facility, tolls from a toll
                      bridge, for example. The payment of principal and interest
                      on private activity and industrial development bonds
                      generally is dependent solely on the ability of the
                      facility's user to meet its financial obligations and the
                      pledge, if any, of real and personal property so financed
                      as security for such payment.
 
                                       44
<PAGE>   389
 
                        PARTICIPATION INTERESTS--Participation interests are
                      interests in municipal securities from financial
                      institutions such as commercial and investment banks,
                      savings and loan associations and insurance companies.
                      These interests may take the form of participations,
                      beneficial interests in a trust, partnership interests or
                      any other form of indirect ownership that allows the Fund
                      to treat the income from the investment as exempt from
                      federal income tax. The Fund invests in these
                      participation interests in order to obtain credit
                      enhancement or demand features that would not be available
                      through direct ownership of the underlying municipal
                      securities.
 
                        RECEIPTS--Interests in separately traded interest and
                      principal component parts of U.S. Treasury obligations
                      that are issued by banks and brokerage firms and are
                      created by depositing Treasury notes and Treasury bonds
                      into a special account at a custodian bank. The custodian
                      holds the interest and principal payments for the benefit
                      of the registered owners of the certificates of such
                      receipts. The custodian arranges for the issuance of the
                      certificates or receipts evidencing ownership and
                      maintains the register. Receipts include "Treasury
                      Receipts" ("TR's"), "Treasury Investment Growth Receipts"
                      ("TIGR's"), and "Certificates of Accrual on Treasury
                      Securities" ("CATS"). TR's, TIGR's and CATS are sold as
                      zero coupon securities, which means that they are sold at
                      a substantial discount and redeemed at face value at their
                      maturity date without interim cash payments of interest or
                      principal. This discount is accreted over the life of the
                      security, and such accretion will constitute the income
                      earned on the security for both accounting and tax
                      purposes. Because of these features, such securities may
                      be subject to greater interest rate volatility than
                      interest-paying securities. See also "FEDERAL TAXATION."
 
                        REPURCHASE AGREEMENTS--Agreements whereby a Fund will
                      acquire securities from approved financial institutions or
                      registered broker-dealers that agree to repurchase the
                      securities at a mutually agreed-upon date and price. The
                      repurchase agreements entered into by the Funds will
                      provide that the underlying security at all times shall
                      have a value equal to 102% of the resale price stated in
                      the agreement. Repurchase agreements involving government
                      securities are not subject to a Fund's fundamental
                      investment limitation on purchasing securities of any one
                      issuer. If the seller defaults on its repurchase
                      obligation or becomes insolvent, the Fund holding such
                      obligations would suffer a loss to the extent that either
                      the proceeds from a sale of the underlying portfolio
                      securities were less than the repurchase price or the
                      Fund's disposition of the securities was delayed pending
                      court action. Securities subject to repurchase agreements
                      will be held by a qualified custodian or in the Federal
                      Reserve/Treasury book-entry system. Repurchase agreements
                      are considered to be loans by a Fund under the Investment
                      Company Act of 1940 (the "1940 Act").
 
                                       45
<PAGE>   390
 
                        REVERSE REPURCHASE AGREEMENTS--A Fund may borrow funds
                      for temporary purposes by entering into reverse repurchase
                      agreements, provided such action is consistent with the
                      Fund's investment objective and fundamental investment
                      restrictions; as a matter of non-fundamental policy, each
                      Fund intends to limit such investments to no more than 10%
                      of the value of its total assets. Pursuant to a reverse
                      repurchase agreement, a Fund will sell portfolio
                      securities to financial institutions such as banks or to
                      broker-dealers, and agree to repurchase the securities at
                      a mutually agreed-upon date and price. A Fund intends to
                      enter into reverse repurchase agreements only to avoid
                      otherwise selling securities during unfavorable market
                      conditions to meet redemptions. At the time a Fund enters
                      into a reverse repurchase agreement, it will place in a
                      segregated custodial account assets such as U.S.
                      Government securities or other liquid, high-quality debt
                      securities consistent with the Fund's investment objective
                      having a value equal to 102% of the repurchase price
                      (including accrued interest), and will subsequently
                      monitor the account to ensure that an equivalent value is
                      maintained. Reverse repurchase agreements involve the risk
                      that the market value of the securities sold by a Fund may
                      decline below the price at which a Fund is obligated to
                      repurchase the securities. Reverse repurchase agreements
                      are considered to be borrowings by a Fund under the 1940
                      Act.
 
                        RULE 144A SECURITIES--Rule 144A Securities are
                      securities that have not been registered under the
                      Securities Act of 1933, but which may be traded between
                      certain qualified institutional investors, including
                      investment companies. The absence of a secondary market
                      may affect the value of the Rule 144A Securities. The
                      Board of Trustees of the Group has established guidelines
                      and procedures to be utilized to determine the liquidity
                      of such securities.
 
                        SECURITIES ISSUED ON A FORWARD COMMITMENT BASIS OR
                      WHEN-ISSUED SECURITIES--Securities purchased for delivery
                      beyond the normal settlement date at a stated price and
                      yield and which thereby involve a risk that the yield
                      obtained in the transaction will be less than that
                      available in the market when delivery takes place. When a
                      Fund agrees to purchase when-issued securities or enter
                      into forward commitments, the Group's custodian will be
                      instructed to set aside cash or liquid portfolio
                      securities equal to the amount of the commitment in a
                      segregated account. A Fund will generally not pay for such
                      securities and no income will accrue on the securities
                      until they are received. These securities are recorded as
                      an asset and are subject to changes in value based upon
                      changes in the general level of interest rates. Therefore,
                      the purchase of securities on a "when-issued" basis or
                      forward commitments may increase the risk of fluctuations
                      in a Fund's net asset value.
 
                        SECURITIES LENDING--During the time portfolio securities
                      are on loan from a Fund, the borrower will pay the Fund
                      any dividends or interest paid on the
 
                                       46
<PAGE>   391
 
                      securities. In addition, loans will be subject to
                      termination by the Fund or the borrower at any time and,
                      while a Fund will generally not have the right to vote
                      securities on loan, it will terminate the loan and regain
                      the right to vote if that is considered important with
                      respect to the investment. While the lending of securities
                      may subject a Fund to certain risks, such as delays or an
                      inability to regain the securities in the event the
                      borrower were to default on its lending agreement or enter
                      into bankruptcy, a Fund will receive 100% collateral in
                      the form of cash or U.S. Government securities. This
                      collateral will be valued daily by the lending agent, with
                      oversight by the Advisor, and, should the market value of
                      the loaned securities increase, the borrower will be
                      required to furnish additional collateral to the Fund.
 
                        SECURITIES SUBJECT TO A PUT FEATURE--A "put" feature
                      permits a Fund to sell a fixed income security at a fixed
                      price prior to maturity. The underlying fixed income
                      securities subject to a put may be sold at any time at the
                      market rates. However, unless the put was an integral part
                      of the fixed income security as originally issued, it may
                      not be marketable or assignable. Generally, a premium is
                      paid for a put feature or a put feature is purchased
                      separately which results in a lower yield than would
                      otherwise be available for the same fixed income
                      securities.
 
                        TAX-EXEMPT COMMERCIAL PAPER--Commercial paper, which is
                      commercial paper issued by governments and political
                      subdivisions.
 
                        TIME DEPOSITS--Non-negotiable receipts issued by U.S. or
                      foreign banks in exchange for the deposit of funds. Like
                      certificates of deposit, they earn a specified rate of
                      interest over a definite period of time; however, they
                      cannot be traded in the secondary market. Time deposits
                      with a withdrawal penalty are considered to be illiquid
                      securities.
 
                        U.S. GOVERNMENT AGENCY SECURITIES--Certain Federal
                      agencies have been established as instrumentalities of the
                      U.S. Government to supervise and finance certain types of
                      activities. Issues of these agencies, while not direct
                      obligations of the U.S. Government, are either backed by
                      the full faith and credit of the United States (e.g., GNMA
                      securities) or supported by the issuing agencies' right to
                      borrow from the U.S. Treasury. The issues of other
                      agencies are supported only by the credit of the
                      instrumentality (e.g., FNMA securities).
 
                        U.S. TREASURY OBLIGATIONS--Bills, notes, and bonds
                      issued by the U.S. Treasury, as well as separately traded
                      interest and principal component parts of such obligations
                      known as Separately Traded Registered Interest and
                      Principal Securities ("STRIPS") that are transferable
                      through the Federal book-entry system.
 
                                       47
<PAGE>   392
 
                        U.S. Government Securities generally do not involve the
                      credit risks associated with investments in other types of
                      fixed-income securities, although, as a result, the yields
                      available from U.S. Government Securities are generally
                      lower than the yields available from otherwise comparable
                      corporate fixed-income securities. Like other fixed-income
                      securities, however, the values of U.S. Government
                      Securities change as interest rates fluctuate.
                      Fluctuations in the value of portfolio securities will in
                      many cases not affect interest income on existing
                      portfolio securities, but will be reflected in the Fund's
                      net asset value. Because the magnitude of these
                      fluctuations will generally be greater at times when a
                      Fund's average maturity is longer, under certain market
                      conditions the Fund may invest in short-term investments
                      yielding lower current income rather than investing in
                      higher yielding longer-term securities.
 
                        VARIABLE AMOUNT MASTER DEMAND NOTES--Unsecured demand
                      notes that permit the indebtedness thereunder to vary and
                      provide for periodic adjustments in the interest rate
                      according to the terms of the instrument. Because master
                      demand notes are direct lending arrangements between
                      HighMark and the issuer, they are not normally traded.
                      Although there is no secondary market in these notes, the
                      Fund may demand payment of principal and accrued interest
                      at specified intervals. For purposes of the Fund's
                      investment policies, a variable amount master demand note
                      will be deemed to have a maturity equal to the longer of
                      the period of time remaining until the next readjustment
                      of its interest rate or the period of time remaining until
                      the principal amount can be recovered from the issuer
                      through demand.
 
                        VARIABLE AND FLOATING RATE INSTRUMENTS--Obligations that
                      may carry variable or floating rates of interest, may
                      involve conditional or unconditional demand features and
                      may include variable amount master demand notes. The
                      interest rates on these securities may be reset daily,
                      weekly, quarterly or some other reset period, and may have
                      a floor or ceiling on interest rate changes. There is a
                      risk that the current interest rate on such obligations
                      may not accurately reflect existing market interest rates.
                      A demand instrument with a demand notice period exceeding
                      seven days may be considered illiquid if there is no
                      secondary market for such security.
 
                        YANKEE BONDS--Dollar denominated securities issued by
                      foreign-domiciled issuers that obligate the issuer to pay
                      the bondholder a specified sum of money, usually
                      semiannually, and to repay the principal amount of the
                      loan at maturity. Sovereign bonds are bonds issued by the
                      governments of foreign countries. Supranational bonds are
                      those issued by supranational entities, such as the World
                      Bank and European Investment Bank. Canadian bonds are
                      bonds issued by Canadian provinces.
 
                                       48
<PAGE>   393
 
                        ZERO-COUPON OBLIGATIONS--Non-income producing securities
                      evidencing ownership of future interest and principal
                      payments on bonds. These obligations pay no current
                      interest and are typically sold at prices greatly
                      discounted from par value. The return on a zero-coupon
                      obligation, when held to maturity, equals the difference
                      between the par value and the original purchase price.
 
                        For federal income tax purposes, the difference between
                      the par value and the original issue price (original issue
                      discount) is included in the income of a holder of a
                      zero-coupon obligation over the term of the obligation
                      even though the interest is not paid until maturity. The
                      amount included in income is determined under a constant
                      interest rate method. In addition, if an obligation is
                      purchased subsequent to its original issue, a holder such
                      as the Income Funds may elect to include market discount
                      in income currently on a ratable accrual method or a
                      constant interest rate method. Market discount is the
                      difference between the obligation's "adjusted issue price"
                      (the original issue price plus original issue discount
                      accrued to date) and the holder's purchase price. If no
                      such election is made, gain on the disposition of a market
                      discount obligation is treated as ordinary income (rather
                      than capital gain) to the extent it does not exceed the
                      accrued market discount.
 
                        Zero-coupon obligations have greater price volatility
                      than other fixed-income obligations of similar maturity
                      and such obligations will be purchased when the yield
                      spread, in light of the obligation's duration, is
                      considered advantageous.
 
                                       49
<PAGE>   394
 
                          HighMark MONEY MARKET FUNDS
                            INVESTMENT PORTFOLIOS OF
                                 HighMark FUNDS
                   For further information (including current
                  yield, purchase and redemption information),
                             call 1-(800) 433-6884
 
INVESTMENT ADVISOR
Pacific Alliance Capital Management,
a division of Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
CUSTODIAN
Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
ADMINISTRATOR & DISTRIBUTOR
SEI Fund Resources and
SEI Financial Services Company
Oaks, PA 19456
 
LEGAL COUNSEL
Ropes & Gray
One Franklin Square
1301 K Street, N.W., Suite 800 East
Washington, D.C. 20005
 
AUDITORS
Deloitte & Touche LLP
1700 Courthouse Plaza Northeast
Dayton, OH 45402
 
  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS IN CONNECTION WITH THE OFFERING
MADE BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR
REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY HIGHMARK OR
ITS DISTRIBUTOR. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFERING BY THE GROUP OR
BY THE DISTRIBUTOR IN ANY JURISDICTION IN WHICH SUCH OFFERING MAY NOT LAWFULLY
BE MADE.
 
NOT FDIC INSURED
<PAGE>   395
                                FIXED INCOME FUNDS

                                - Intermediate-Term
                                  Bond Fund

                                - Bond Fund

                                - Government Securities
                                  Fund

                                   Prospectus

                                Fiduciary Shares

                                 March 28, 1997

84824-A(3/97)                 [LOGO] HIGHMARK(SM)
                                     FUNDS

<PAGE>   396
 
                                 HIGHMARK FUNDS
 
                               FIXED INCOME FUNDS
 
  HighMark Funds ("HighMark") is an open-end, diversified, registered investment
company that offers a convenient means of investing in one or more
professionally managed portfolios of securities. This Prospectus relates to
HighMark's:
 
                             - Intermediate-Term Bond Fund
                             - Bond Fund
                             - Government Securities Fund
 
                                FIDUCIARY SHARES
 
  HighMark's Fiduciary Shares are offered to the following investors: (i)
fiduciary, advisory, agency, custodial and other similar accounts maintained
with Union Bank of California, N.A. or its affiliates; (ii) Select IRA accounts
established with The Bank of California, N.A. and invested in any of HighMark's
Equity or Fixed Income Funds prior to June 20, 1994, which have remained
continuously open thereafter and which are not considered to be fiduciary
accounts; (iii) Shareholders who currently own Shares of HighMark's Equity or
Fixed Income Funds that were purchased prior to June 20, 1994 within an account
registered in their name with the Funds; and (iv) present and retired directors,
officers and employees (and their spouses and children under the age of 21) of
Union Bank of California, N.A., HighMark's current or former distributors or
their respective affiliated companies who currently own Shares of HighMark Funds
which were purchased before April 30, 1997.
 
  This Prospectus sets forth concisely the information about HighMark and the
Funds that a prospective investor should know before investing. Investors are
advised to read this Prospectus and retain it for future reference. A Statement
of Additional Information dated the same date as this Prospectus has been filed
with the Securities and Exchange Commission and is available without charge by
writing the Distributor, SEI Financial Services Company, Oaks, Pennsylvania
19456, or by calling 1-800-433-6884. The Statement of Additional Information is
incorporated into this Prospectus by reference. This Prospectus relates only to
the Fiduciary Shares of the Fixed Income Funds. Interested persons who wish to
obtain a prospectus for the other Funds of HighMark may contact the Distributor
at the above address and telephone number.
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
HIGHMARK'S SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK, INCLUDING UNION BANK OF CALIFORNIA, N.A., BANK OF
TOKYO-MITSUBISHI, LIMITED OR ANY OF THEIR AFFILIATES OR CORRESPONDENTS.
HIGHMARK'S SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT INSURANCE
CORPORATION OR ANY OTHER GOVERNMENT AGENCY. INVESTMENT IN HIGHMARK INVOLVES
RISKS, INCLUDING POSSIBLE LOSS OF THE PRINCIPAL AMOUNT INVESTED.
 
March 28, 1997
Fiduciary Shares
<PAGE>   397
 
                                    SUMMARY
 
HIGHMARK FUNDS ("HighMark") is an open-end, diversified, registered investment
company providing a convenient way to invest in professionally managed
portfolios of securities. The following provides basic information about the
Fiduciary Shares of the Intermediate-Term Bond, Bond, and Government Securities
Funds (each a "Fund" and sometimes referred to in this prospectus as the "Fixed
Income Funds.") This summary is qualified in its entirety by reference to the
more detailed information provided elsewhere in the Prospectus and in the
Statement of Additional Information.
 
WHAT ARE THE FUNDS' INVESTMENT OBJECTIVES? THE INTERMEDIATE-TERM BOND FUND seeks
total return through investments in fixed-income securities. THE BOND FUND seeks
current income through investments in long-term, fixed-income securities. THE
GOVERNMENT SECURITIES FUND seeks to achieve total return consistent with the
preservation of capital by investing in a diversified portfolio of obligations
issued or guaranteed by the U.S. government or its agencies or
instrumentalities. (See "INVESTMENT OBJECTIVES")
 
WHAT ARE THE FUNDS' PERMITTED INVESTMENTS? THE INTERMEDIATE-TERM BOND FUND
primarily invests in bonds. THE BOND FUND invests in long-term bonds. Bonds
include debt obligations such as bonds, notes, debentures and securities
convertible into or exercisable for debt obligations that are issued by U.S.
corporations or issued or guaranteed by the U.S. Government, its agencies, or
instrumentalities; investments may also include zero-coupon obligations,
mortgage-related securities and asset-backed securities. THE GOVERNMENT
SECURITIES FUND invests primarily in debt obligations issued or guaranteed by
the U.S. government or its agencies or instrumentalities, including
mortgage-backed securities issued or guaranteed by U.S. government agencies.
(See "INVESTMENT POLICIES")
 
WHAT ARE THE RISKS INVOLVED WITH AN INVESTMENT IN THE FUNDS? The investment
policies of each Fund entail certain risks and considerations of which an
investor should be aware. The market value of a Fund's fixed income investments
will change in response to interest rate changes and other factors. During
periods of falling interest rates, the value of outstanding fixed income
securities generally rises. Conversely, during periods of rising interest rates,
the value of such securities generally declines. (See "Risk Factors")
 
ARE MY INVESTMENTS INSURED? HighMark's Shares are not federally insured by the
FDIC or any other government agency. Any guarantee by the U.S. Government, its
agencies or any instrumentalities of the securities in which any Fund invests
guarantees only the payment of principal and interest on the guaranteed
security, and does not guarantee the total return or value of the security or
total return or value of Shares of that Fund.
 
WHO IS THE ADVISOR? Pacific Alliance Capital Management, a division of Union
Bank of California, N.A., serves as the Advisor to HighMark. (See "The Advisor")
 
WHO IS THE SUB-ADVISOR? Bank of Tokyo-Mitsubishi Trust Company serves as the
Sub-Adviser to the Government Securities Fund. (See "The Sub-Advisor")
 
WHO IS THE ADMINISTRATOR? SEI Fund Resources serves as the Administrator of
HighMark. (See "The Administrator")
 
                                        2
<PAGE>   398
 
WHO IS THE CUSTODIAN? Union Bank of California, N.A., (the "Bank") serves as the
Custodian of HighMark's assets. (See "The Custodian")
 
WHO IS THE DISTRIBUTOR? SEI Financial Services Company acts as distributor of
HighMark's Shares. (See "The Distributor")
 
HOW DO I PURCHASE AND REDEEM SHARES? Purchases and redemptions may be made
through the Distributor on days on which both the New York Stock Exchange and
the Federal Reserve wire system are open for business ("Business Days"). The
minimum initial investment is generally $1,000. A purchase order will be
effective if the Distributor receives an order prior to 1:00 p.m., Pacific time
(4:00 p.m., Eastern time). Purchase orders for Shares will be executed at a per
Share price equal to the asset value next determined after the purchase order is
effective. Redemption orders must be placed prior to 1:00 p.m., Pacific time
(4:00 p.m., Eastern time) on any Business Day for the order to be effective that
day. (See "PURCHASE AND REDEMPTION OF SHARES")
 
HOW ARE DIVIDENDS PAID? Substantially all of the net investment income
(exclusive of capital gains) of the Funds is distributed in the form of monthly
dividends to Shareholders of record. Any capital gain is distributed at least
annually. Distributions are paid in additional Shares unless the Shareholder
elects to take the payment in cash. (See "DIVIDENDS")
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
Summary...............................................................................    2
Fixed Income Funds Fee Table..........................................................    5
Financial Highlights..................................................................    7
Fund Description......................................................................   10
Investment Objective..................................................................   10
Investment Policies...................................................................   10
  Intermediate-Term Bond Fund.........................................................   10
  Bond Fund...........................................................................   11
  Government Securities Fund..........................................................   11
General...............................................................................   12
  Money Market Instruments............................................................   12
  Illiquid and Restricted Securities..................................................   12
  Lending of Portfolio Securities.....................................................   13
  Other Investments...................................................................   13
  Risk Factors........................................................................   14
Investment Limitations................................................................   15
  Portfolio Turnover..................................................................   16
Purchase and Redemption of Shares.....................................................   16
Exchange Privileges...................................................................   17
</TABLE>
 
                                        3
<PAGE>   399
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
Dividends.............................................................................   18
Federal Taxation......................................................................   19
Service Arrangements..................................................................   20
  The Advisor.........................................................................   20
  The Sub-Advisor.....................................................................   21
  Administrator.......................................................................   22
  The Transfer Agent..................................................................   23
  Shareholder Service Plan............................................................   23
  Distributor.........................................................................   23
  Banking Laws........................................................................   23
  Custodian...........................................................................   24
General Information...................................................................   24
  Description of HighMark & Its Shares................................................   24
  Performance Information.............................................................   25
  Miscellaneous.......................................................................   26
Description of Permitted Investments..................................................   26
</TABLE>
 
                                        4
<PAGE>   400
 
                          FIXED INCOME FUNDS FEE TABLE
 
<TABLE>
<CAPTION>
                                                                            INTERMEDIATE- TERM                GOVERNMENT
                                                                                BOND FUND       BOND FUND   SECURITIES FUND
                                                                                FIDUCIARY       FIDUCIARY      FIDUCIARY
                                                                                 SHARES          SHARES         SHARES
                                                                            -----------------   ---------   ---------------
<S>                                                                         <C>                 <C>         <C>
SHAREHOLDER TRANSACTION EXPENSES(A)
  Maximum Sales Load Imposed on Purchases (as a percentage of offering
    price)................................................................         0.00%           0.00%          0.00%
  Maximum Sales Load Imposed on Reinvested Dividends (as a percentage of
    offering price).......................................................            0%              0%             0%
  Deferred Sales Load (as a percentage of original purchase price or
    redemption proceeds, as applicable)...................................            0%              0%             0%
  Redemption Fees (as a percentage of amount redeemed, if
    applicable)(b)........................................................            0%              0%             0%
  Exchange Fee(a).........................................................        $   0           $   0          $   0
ANNUAL OPERATING EXPENSES (as a percentage of net assets)
  Management Fees.........................................................         0.50%           0.50%          0.50%
  12b-1 Fees..............................................................         0.00%           0.00%          0.00%
  Other Expenses (after voluntary reduction)(c)...........................         0.25%           0.25%          0.25%
                                                                                   ----            ----           ----
  Total Fund Operating Expenses (after voluntary reduction)(d)............         0.75%           0.75%          0.75%
                                                                                   ====            ====           ====
</TABLE>
 
  EXAMPLE: You would pay the following expenses on a $1,000 investment, assuming
(1) 5% annual return and (2) redemption at the end of each time period.
 
<TABLE>
<CAPTION>
                                                                 1 YEAR   3 YEARS   5 YEARS   10 YEARS
                                                                 ------   -------   -------   --------
<S>                                                              <C>      <C>       <C>       <C>
Intermediate-Term Bond Fund Fiduciary Shares...................    $8       $24       $42       $ 93
Bond Fund Fiduciary Shares.....................................    $8       $24       $42       $ 93
Government Securities Fund Fiduciary Shares....................    $8       $24       $42       $ 93
</TABLE>
 
  The purpose of the tables above is to assist an investor in the Fixed Income
Funds in understanding the various costs and expenses that a Shareholder will
bear directly or indirectly. For a more complete discussion of each Fund's
annual operating expenses, see SERVICE ARRANGEMENTS below. THE FOREGOING EXAMPLE
SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE EXPENSES. ACTUAL
EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN.
- ---------------
 
(a) Certain entities (including Union Bank of California and its affiliates)
    making investments in the Fixed Income Funds on behalf of their customers
    may charge customers fees for services provided in connection with the
    investment in, redemption of, and exchange of Shares. (See PURCHASE AND
    REDEMPTION OF SHARES, EXCHANGE PRIVILEGES, and SERVICE ARRANGEMENTS below.)
 
(b) A wire redemption charge is deducted from the amount of a wire redemption
    payment made at the request of a Shareholder.
 
(c) OTHER EXPENSES for the Intermediate-Term Bond and Government Securities
    Funds are based on each Fund's estimated expenses for the current fiscal
    year. Absent voluntary fee waivers, OTHER EXPENSES would be 0.49% for the
    Fiduciary Shares of the Intermediate-Term Bond Fund, 0.51% for the Fiduciary
    Shares of the Bond Fund, and 0.52% for the Fiduciary Shares of the
    Government Securities Fund.
 
                                        5
<PAGE>   401
 
(d) Absent voluntary fee waivers, TOTAL FUND OPERATING EXPENSES would be: 0.99%
    for the Fiduciary Shares of the Intermediate-Term Bond Fund, 1.01% for the
    Fiduciary Shares of the Bond Fund, and 1.02% for the Fiduciary Shares of the
    Government Securities Fund.
 
                                        6
<PAGE>   402
 
                              FINANCIAL HIGHLIGHTS
 
  The table below sets forth certain financial information with respect to the
Fiduciary Shares of the Bond Fund. Information prior to fiscal 1994 is for
Fiduciary Shares only. Financial highlights for the Bond Fund for the period
ended July 31, 1996 have been derived from financial statements audited by
Deloitte & Touche LLP, independent auditors for HighMark, whose report thereon
is included in the Statement of Additional Information. Prior to the fiscal year
ended July 31, 1996, Coopers & Lybrand L.L.P. served as independent auditors for
HighMark. Financial highlights for the Bond Fund for the years ended December
31, 1987, 1986 and 1985 have been derived from financial statements examined by
other auditors whose report thereon is on file with the Securities and Exchange
Commission. Financial highlights for the Bond Fund for the period from January
1, 1988 through June 22, 1988 are derived from unaudited financial statements
prepared by HighMark. The Intermediate-Term Bond Fund and the Government
Securities Fund had not commenced operations in HighMark as of July 31, 1996.
 
  The Bond Fund offered a single class of shares (now designated Fiduciary
Shares) throughout the periods shown.
 
                                   BOND FUND
 
<TABLE>
<CAPTION>
                                                                YEAR ENDED JULY 31,
                                              --------------------------------------------------------
                                                1996        1995       1994(A)       1993       1992
                                              ---------   ---------   ----------   --------   --------
                                              FIDUCIARY   FIDUCIARY   FIDUCIARY
                                              ---------   ---------   ----------
<S>                                           <C>         <C>         <C>          <C>        <C>
Net Asset Value, Beginning of Period........  $   10.38   $   10.11    $  11.13    $  11.02   $  10.29
                                               --------    --------    --------    --------   --------
Investment Activities
  Net investment income.....................       0.66        0.64        0.63        0.70       0.67
  Net realized and unrealized gains (losses)
     on investments.........................      (0.16)       0.27       (0.97)       0.35       0.77
                                               --------    --------    --------    --------   --------
     Total from Investment Activities.......       0.50        0.91       (0.34)       1.05       1.44
                                               --------    --------    --------    --------   --------
Distributions
  Net investment income.....................      (0.65)      (0.64)      (0.63)      (0.70)     (0.67)
  Net realized gains........................                              (0.01)      (0.24)     (0.04)
  In excess of net realized gains...........         --          --       (0.04)         --         --
                                               --------    --------    --------    --------   --------
     Total Distributions....................      (0.65)      (0.64)      (0.68)      (0.94)     (0.71)
                                               --------    --------    --------    --------   --------
Net Asset Value, End of Period..............  $   10.23   $   10.38    $  10.11    $  11.13   $  11.02
                                               ========    ========    ========    ========   ========
Total Return................................       4.81%       9.43%      (3.14)%     10.07%     14.43%
Ratios/Supplementary Data:
Net Assets at end of period (000)...........  $  60,374   $  59,758    $ 64,185    $ 33,279   $ 21,651
Ratio of expenses to average net assets.....       0.89%       0.92%       0.86%       0.93%      0.91%
Ratio of net investment income to average
  net assets................................       6.10%       6.35%       6.11%       6.41%      6.23%
Ratio of expenses to average net assets*....       1.61%       1.64%       1.37%       1.55%      1.55%
Ratio of net investment income to average
  net assets*...............................       5.38%       5.62%       5.60%       5.79%      5.59%
Portfolio turnover..........................      20.88%      36.20%      44.33%      58.81%     79.56%
</TABLE>
 
                                        7
<PAGE>   403
 
<TABLE>
<CAPTION>
                                                                                       JUNE 23, 1988
                                                              YEAR ENDED JULY 31,       TO JULY 31
                                                           -------------------------   -------------
                                                            1991      1990     1989       1988(D)
                                                           -------   ------   ------   -------------
<S>                                                        <C>       <C>      <C>      <C>
Net Asset Value, Beginning of Period.....................  $ 10.18   $10.42   $ 9.86      $ 10.00
                                                           -------   -------  -------     -------
Investment Activities
  Net investment income..................................     0.78     0.79     0.82         0.09
  Net realized and unrealized gains (losses) on
     investments.........................................     0.04    (0.25)    0.56        (0.14)
                                                           -------   -------  -------     -------
     Total from Investment Activities....................     0.82     0.54     1.38        (0.05)
                                                           -------   -------  -------     -------
Distributions
  Net investment income..................................    (0.71)   (0.78)   (0.82)       (0.09)
  Net realized gains
  In excess of net realized gains........................       --       --       --           --
                                                           -------   -------  -------     -------
     Total Distributions.................................    (0.71)   (0.78)   (0.82)       (0.09)
                                                           -------   -------  -------     -------
Net Asset Value, End of Period...........................  $ 10.29   $10.18   $10.42      $  9.86
                                                           =======   ======   ======      =======
Total Return.............................................    8.99%    5.52%   14.79%        (0.96)%(c)
Ratios/Supplementary Data:
Net Assets at end of period (000)........................  $10,799   $6,974   $4,655      $ 3,487
Ratio of expenses to average net assets..................     0.79%    1.01%    1.18%        1.04%(b)
Ratio of net investment income to average net assets.....     7.61%    7.77%    8.24%        8.63%(b)
Ratio of expenses to average net assets*.................     1.59%    1.94%    2.11%        2.06%(b)
Ratio of net investment income to average net assets*....     6.81%    6.84%    7.31%        7.61%(b)
Portfolio turnover.......................................    65.81%   53.50%   24.83%        0.00%
</TABLE>
 
- ---------------

(a) On June 20, 1994, the Bond Fund commenced offering Investor Shares (now
    called "Retail Shares") and designated existing shares as Fiduciary Shares.

(b) Annualized.

(c) Not annualized.

(d) The Bond Fund commenced operations on June 23, 1988 as a result of the
    reorganization involving the Bond Portfolio of the IRA Collective Investment
    Fund described under GENERAL INFORMATION-- Reorganization of The IRA Fund &
    HighMark.
 
 *  During the period the investment advisory and administration fees were
    voluntarily reduced. If such voluntary fee reductions had not occurred, the
    ratios would have been as indicated.
 
                                        8
<PAGE>   404
  
                      PER SHARE INCOME AND CAPITAL CHANGES
                (FOR A SHARE OUTSTANDING THROUGHOUT THE PERIODS)
 
               THE IRA COLLECTIVE INVESTMENT FUND BOND PORTFOLIO
 
<TABLE>
<CAPTION>
                                                             JAN. 1,
                                                              1988
                                                             THROUGH
                                                            JUNE 22,       YEAR ENDED     YEAR ENDED
                                                              1988          DEC. 31,       DEC. 31,
                                                           (UNAUDITED)        1987           1986
                                                           -----------     ----------     ----------
<S>                                                        <C>             <C>            <C>
Investment income........................................   $   0.503       $  1.061       $  1.129
Operating expenses.......................................       0.065          0.128(b)       1.119(b)
                                                             --------       --------       --------
Net investment income....................................       0.438          0.933          1.010
Dividends from net investment income.....................      (0.438)        (0.933)        (1.010)
Net realized and unrealized gain (loss) on investments...      (0.050)        (0.966)         0.947
                                                             --------       --------       --------
Increase (decrease) in net asset value...................      (0.050)        (0.966)         0.947
Net Asset Value:
  Beginning of period....................................      11.281         12.247         11.300
                                                             --------       --------       --------
  End of period..........................................   $  11.231       $ 11.281       $ 12.247
                                                             ========       ========       ========
Ratio of expenses to average net assets(a)(b)............        1.20%          1.09%          0.92%
Ratio of net investment income to average net
  assets(a)..............................................        8.03%          7.93%          7.83%
Portfolio turnover.......................................        0.00%          0.00%          1.61%
Number of Shares/units outstanding at end of period......     317,633        344,456        206,664
</TABLE>
 
- ---------------
 
(a)  Annualized based on the period for which assets were held.

(b)  The expenses shown are not representative of expenses actually incurred by
     the Bond Portfolio through May 31, 1987. During mid-May 1985, The Bank of
     California, N.A., investment adviser to the Bond Portfolio, commenced
     charging its management fee, and commencing June 1, 1987, operating
     expenses were charged to the Bond Portfolio. Had the maximum allowable
     operating expenses and management fees been paid by the Bond Portfolio for
     the entire period pursuant to the Management Agreement between the Bond
     Portfolio and The Bank of California, N.A., the per unit expenses and net
     investment income would have been as follows:
 
<TABLE>
<CAPTION>
                                                               JAN. 1,
                                                                1988
                                                               THROUGH
                                                              JUNE 22,     YEAR ENDED     YEAR ENDED
                                                                1988        DEC. 31,       DEC. 31,
                                                             (UNAUDITED)      1987           1986
                                                             -----------   ----------     ----------
<S>                                                          <C>           <C>            <C>
Expenses...................................................    $ 0.240      $  0.226       $  0.231
Net investment income......................................      0.263         0.793          0.779
Net asset value, end of year...............................     11.231        11,281         12.247
Expenses as a percentage of average net asset..............       2.00%(a)      2.00%          2.00%
</TABLE>
 
                                        9
<PAGE>   405
 
FUND
DESCRIPTION             HighMark Funds ("HighMark") is an open-end, diversified,
                      registered investment company that currently offers units
                      of beneficial interest ("Shares") in sixteen separate
                      investment portfolios ("Funds"). All of the Funds are
                      advised by Pacific Alliance Capital Management (the
                      "Advisor"), a division of Union Bank of California, N.A.
                      Shareholders may purchase Shares of selected Funds through
                      two separate classes, (the "Retail" and "Fiduciary"
                      classes). These classes may have different sales charges
                      and other expenses, which may affect performance.
                      Information regarding HighMark's other Funds and other
                      classes is contained in separate prospectuses that may be
                      obtained from HighMark's Distributor, SEI Financial
                      Services Company, at Oaks, Pennsylvania 19456, or by
                      calling 1-800-433-6884.
 
                        For information concerning those investors who qualify
                      to purchase Fiduciary Shares, see PURCHASE AND REDEMPTION
                      OF SHARES below. (Fiduciary Shares may be hereinafter
                      referred to as "Shares.")
 
INVESTMENT
OBJECTIVES              The investment objectives of the Funds are as follows:
 
                        The Intermediate-Term Bond Fund seeks total return
                      through investments in fixed-income securities.
 
                        The Bond Fund seeks current income through investments
                      in long-term, fixed-income securities.
 
                        The Government Securities Fund seeks to achieve total
                      return consistent with the preservation of capital by
                      investing in a diversified portfolio of obligations issued
                      or guaranteed by the U.S. government or its agencies or
                      instrumentalities.
 
                        The investment objectives and certain of the investment
                      limitations of the Intermediate-Term Bond Fund, the Bond
                      Fund, and the Government Securities Fund may not be
                      changed without a vote of the holders of a majority of the
                      outstanding Shares of the respective Fund (as defined
                      under GENERAL INFORMATION--Miscellaneous below). There can
                      be no assurance that a Fund will achieve its investment
                      objective.
 
INVESTMENT
POLICIES              Intermediate-Term Bond Fund
 
                        Under normal market conditions, at least 65% of the
                      Intermediate-Term Bond Fund's assets will be invested in
                      bonds. For purposes of this policy "bonds" include (i)
                      corporate bonds and debentures rated at the time of
                      purchase as "investment grade" (one of the four highest
                      bond rating categories by a nationally recognized
                      statistical rating organization ("NRSRO") i.e., AAA, AA,
                      A, or BBB by Standard & Poor's Corporation ("S&P") or Aaa,
                      Aa, A, or Baa by Moody's Investors Service ("Moody's")) or
                      determined by the Advisor to be of comparable quality;
                      (ii) Yankee Bonds and Eurodollar instruments; (iii) notes
                      or bonds
 
                                       10
<PAGE>   406
 
                      issued by the U.S. Government and its agencies and
                      instrumentalities (such as Government National Mortgage
                      Association ("GNMA") securities); (iv) mortgage-backed
                      securities, including privately issued mortgage-backed
                      securities and readily-marketable asset-backed securities,
                      which must be rated at the time of purchase as investment
                      grade, or be determined by the Advisor to be of comparable
                      quality; (v) securities issued or guaranteed by foreign
                      governments, their political subdivisions, agencies or
                      instrumentalities; (vi) obligations of supranational
                      entities such as the World Bank and the Asian Development
                      Bank; and (vii) zero coupon obligations. The remainder of
                      the Fund's assets may be invested in money market
                      instruments.
 
                        The dollar-weighted average portfolio maturity of the
                      Intermediate-Term Bond Fund will be from three to ten
                      years.
 
                      Bond Fund
 
                        The Bond Fund invests in fixed-income securities with
                      maturities in excess of one year, except for amounts held
                      in money market instruments. Fixed-income securities can
                      have maturities of up to thirty years or more. Under
                      normal market conditions, the Bond Fund will invest at
                      least 65% of the value of its total assets in bonds and
                      may invest up to 35% of its total assets in money market
                      instruments.
 
                        For purposes of this policy "bonds" include (i)
                      corporate bonds and debentures rated at the time of
                      purchase as investment grade or determined by the Advisor
                      to be of comparable quality; (ii) Yankee Bonds and
                      Eurodollar instruments; (iii) notes or bonds issued by the
                      U.S. Government and its agencies and instrumentalities
                      (such as GNMA securities); (iv) mortgage-backed
                      securities, including privately issued mortgage-backed
                      securities and readily-marketable asset-backed securities,
                      which must be rated at the time of purchase as investment
                      grade, or be determined by the Advisor to be of comparable
                      quality; (v) securities issued or guaranteed by foreign
                      governments, their political subdivisions, agencies or
                      instrumentalities; (vi) obligations of supranational
                      entities such as the World Bank and the Asian Development
                      Bank; and (vii) zero coupon obligations. The remainder of
                      the Fund's assets may be invested in money market
                      instruments.
 
                        The dollar-weighted average portfolio maturity of the
                      Bond Fund will be from five to twenty years.
 
                      Government Securities Fund
 
                        Under normal market conditions, the Government
                      Securities Fund will invest at least 80% of its assets in
                      obligations issued or guaranteed by the U.S. government or
                      its agencies or instrumentalities, including
                      mortgage-backed securities issued or guaranteed by U.S.
                      government agencies such as GNMA, the
 
                                       11
<PAGE>   407
 
                      Federal National Mortgage Association ("FNMA") or the
                      Federal Home Loan Mortgage Corporation ("FHLMC") and
                      repurchase agreements backed by such securities. The Fund
                      may invest any remaining assets in corporate bonds that
                      are rated at the time of purchase as investment grade or
                      determined by the Sub-Advisor to be of comparable quality;
                      Yankee Bonds, including sovereign, supranational and
                      Canadian bonds; shares of other investment companies with
                      similar investment objectives; commercial paper; money
                      market funds; privately issued mortgage-backed and other
                      readily-marketable asset-backed securities; and money
                      market instruments and cash.
 
                        The Sub-Advisor will seek to enhance the yield of the
                      Fund by taking advantage of yield disparities or other
                      factors that occur in the government securities and money
                      markets. The Fund may dispose of any security prior to its
                      maturity if such disposition and reinvestment of the
                      proceeds are expected to enhance its yield consistent with
                      the Sub-Advisor's judgment as to a desirable maturity
                      structure or if such disposition is believed to be
                      advisable due to other circumstances or considerations.
                      The Fund will seek to achieve capital gains by taking
                      advantage of price appreciation caused by interest rate
                      and credit quality changes.
 
GENERAL                 In the event that a security owned by the Fund is
                      downgraded below the stated rating categories, the Advisor
                      will take appropriate action with regard to that security.
 
                      Money Market Instruments
 
                        Under normal market conditions, the Intermediate-Term
                      Bond Fund and the Bond Fund may invest up to 35% of their
                      total assets in money market instruments, and the
                      Government Securities Fund may invest up to 20% of its
                      total assets in money market instruments. When market
                      conditions indicate a temporary "defensive" investment
                      strategy as determined by the Advisor, a Fund may invest
                      more than the above-stated percentages of its total assets
                      in money market instruments. A Fund will not be pursuing
                      its investment objective to the extent that a substantial
                      portion of its assets are invested in money market
                      instruments.
 
                      Illiquid and Restricted Securities
 
                        Each Fund shall limit investment in illiquid securities
                      to 15% or less of its net assets. Generally, an "illiquid
                      security" is any security that cannot be disposed of
                      promptly and in the ordinary course of business at
                      approximately the amount at which the Fund has valued the
                      instrument. The absence of a trading market can make it
                      difficult to ascertain the market value of illiquid
                      securities. The Fund may purchase restricted securities
                      which have not been registered under the Securities
 
                                       12
<PAGE>   408
 
                      Act of 1933 (e.g., Rule 144A Securities and Section 4(2)
                      commercial paper) subject to policies approved by the
                      Board of Trustees. See INVESTMENT RESTRICTIONS in the
                      Statement of Additional Information.
 
                      Lending of Portfolio Securities
 
                        In order to generate additional income, a Fund may lend
                      its portfolio securities to broker-dealers, banks or other
                      institutions. A Fund may lend portfolio securities in an
                      amount representing up to 33 1/3% of the value of the
                      Fund's total assets.
 
                      Other Investments
 
                        The Funds may enter into repurchase agreements and
                      reverse repurchase agreements.
 
                        The Fixed Income Funds may enter into forward
                      commitments or purchase securities on a "when-issued"
                      basis. Each Fixed Income Fund expects that commitments by
                      a Fund to enter into forward commitments or purchase when-
                      issued securities will not exceed 25% of the value of the
                      Fund's total assets under normal market conditions. The
                      Fixed Income Funds do not intend to purchase when-issued
                      securities or enter into forward commitments for
                      speculative or leveraging purposes but only for the
                      purpose of acquiring portfolio securities.
 
                        A Fund may invest up to 5% of its total assets in the
                      securities of any one registered investment company, but
                      may not own than 3% of the securities of any one
                      registered investment company or invest more than 10% of
                      its assets in the securities of other registered
                      investment companies. In accordance with an exemptive
                      order issued to HighMark by the SEC, such other registered
                      investment company securities may include registered
                      securities of a money market fund of HighMark, and such
                      companies may include companies for which the Advisor or a
                      Sub-Advisor to a Fund of HighMark, or an affiliate of such
                      Advisor or Sub-Advisor serves as investment advisor,
                      administrator or distributor. Because other registered
                      investment companies employ an investment advisor, such
                      investment by a Fund may cause Shareholders to bear
                      duplicative fees. The Advisor will waive its fees
                      attributable to the assets of the investing Fund invested
                      in a money market fund of HighMark, and, to the extent
                      required by applicable law, the Advisor will waive its
                      fees attributable to the assets of the Fund invested in
                      any investment company. Some Funds are subject to
                      additional restrictions on investment in other investment
                      companies. See "INVESTMENT RESTRICTIONS" in the Statement
                      of Additional Information.
 
                        A Fund may invest in futures and options on futures for
                      the purpose of achieving the Fund's objectives and for
                      adjusting portfolio duration. The Fund may invest in
                      futures and related options based on any type of security
                      or index traded on U.S. or foreign exchanges or over the
                      counter, as long as the underlying
 
                                       13
<PAGE>   409
 
                      security, or securities represented by an index, are
                      permitted investments of the Fund. The Fund may enter into
                      futures contracts and related options only to the extent
                      that obligations under such contracts or transactions
                      represent not more than 10% of the Fund's assets.
 
                        Certain of the obligations in which the Funds may invest
                      may be variable or floating rate instruments, may involve
                      a conditional or unconditional demand feature, and may
                      include variable amount master demand notes.
 
                        For further information, see "DESCRIPTION OF PERMITTED
                      INVESTMENTS."
 
                      Risk Factors
 
                        In addition to credit risk which relates to the ability
                      of an issuer to make payments of principal and interest,
                      all types of bonds are also subject to market risk. Market
                      risk relates to changes in a security's value as a result
                      of interest rate changes generally. An increase in
                      interest rates will generally reduce the value of the
                      investments in the Fixed Income Funds and a decline in
                      interest rates will generally increase the value of those
                      investments. Accordingly, the net asset value of the
                      Fund's shares will vary as a result of changes in the
                      value of the securities in a Fund's portfolio. Therefore,
                      an investment in the Funds may decline in value, resulting
                      in a loss of principal. Because interest rates vary, it is
                      impossible to predict the income or yield of the Fund for
                      any particular period.
 
                        Depending upon prevailing market conditions, the Fixed
                      Income Funds may purchase debt securities at a discount
                      from face value, which produces a yield greater than the
                      coupon rate. Conversely, if debt securities are purchased
                      at premium over face value, the yield will be lower than
                      the coupon rate. In making investment decisions, the
                      Advisor will consider many factors other than current
                      yield, including the preservation of capital, the
                      potential for realizing capital appreciation, maturity,
                      and yield to maturity.
 
                        Securities rated BBB by S&P or Baa by Moody's are
                      considered investment grade, but are deemed by these
                      rating services to have some speculative characteristics,
                      and adverse economic conditions or other circumstances are
                      more likely to lead to a weakened capacity to make
                      principal and interest payments than is the case with
                      higher grade bonds.
 
                        Each of the Fixed Income Funds may invest in securities
                      issued or guaranteed by foreign corporations or foreign
                      governments, their political subdivisions, agencies or
                      instrumentalities and obligations of supranational
                      entities such as the World Bank and the Asian Development
                      Bank. Any investments in these securities will be in
                      accordance with a Fund's investment objective and
                      policies, and are subject to special risks, such as
                      adverse political and economic develop-
 
                                       14
<PAGE>   410
 
                      ments, possible seizure, nationalization or expropriation
                      of foreign investments, less stringent disclosure
                      requirements, changes in foreign currency exchange rates,
                      increased costs associated with the conversion of foreign
                      currency into U.S. dollars, the possible establishment of
                      exchange controls or taxation at the source or the
                      adoption of other foreign governmental restrictions. To
                      the extent that a Fund may invest in securities of foreign
                      issuers that are not traded on any exchange, there is a
                      further risk that these securities may not be readily
                      marketable. The Fixed Income Funds will not hold foreign
                      currency for investment purposes.
 
                        For further information regarding risks of particular
                      permitted investments, see "DESCRIPTION OF PERMITTED
                      INVESTMENTS."
 
INVESTMENT
LIMITATIONS             Each Fund may not:
 
                        1) Purchase securities of any one issuer, other than
                      obligations issued or guaranteed by the U.S. Government,
                      its agencies, or instrumentalities, if, immediately after
                      the purchase, more than 5% of the value of such Fund's
                      total assets would be invested in the issuer or the Fund
                      would hold more than 10% of any class of securities of the
                      issuer or more than 10% of the issuer's outstanding voting
                      securities (except that up to 25% of the value of the
                      Fund's total assets may be invested without regard to
                      these limitations);
 
                        2) Purchase any securities that would cause more than
                      25% of such Fund's total assets at the time of purchase to
                      be invested in securities of one or more issuers
                      conducting their principal business activities in the same
                      industry, provided that (a) there is no limitation with
                      respect to obligations issued or guaranteed by the U.S. or
                      foreign governments or their agencies or instrumentalities
                      and repurchase agreements secured by obligations of the
                      U.S. Government or its agencies or instrumentalities; (b)
                      wholly owned finance companies will be considered to be in
                      the industries of their parents if their activities are
                      primarily related to financing the activities of their
                      parents; and (c) utilities will be divided according to
                      their services (for example, gas, gas transmission,
                      electric and gas, electric, and telephone will each be
                      considered a separate industry); and
 
                        3) Make loans, except that a Fund may purchase or hold
                      debt instruments, lend portfolio securities, and enter
                      into repurchase agreements as permitted by its investment
                      objective and policies.
 
                        The foregoing percentages will apply at the time of the
                      purchase of a security. The investment limitations listed
                      above are fundamental policies and may not be changed
                      without a vote of a majority of the outstanding Shares of
                      the respective Fund. Additional fundamental and
                      non-fundamental investment limitations are set forth in
                      the Statement of Additional Information.
 
                                       15
<PAGE>   411
 
                      Portfolio Turnover
 
                        A Fund will not purchase securities solely for the
                      purpose of short-term trading nor will the Fund's
                      portfolio turnover rate be a factor preventing a sale or
                      purchase when the Advisor believes investment
                      considerations warrant. Each of the Fixed Income Fund's
                      portfolio turnover rate may vary greatly from year to year
                      as well as within a particular year. High portfolio
                      turnover rates generally will result in correspondingly
                      higher brokerage and other transactions costs to the Fixed
                      Income Funds and could involve the realization of capital
                      gains that would be taxable when distributed to
                      shareholders of the relevant Fixed Income Fund. See
                      FEDERAL TAXATION.
 
PURCHASE AND
REDEMPTION
OF SHARES               As noted above, each Fund (except the Government
                      Securities Fund, which is offered in only Fiduciary
                      Shares) is divided into two classes of Shares, Retail and
                      Fiduciary. Fiduciary Shares may be purchased at net asset
                      value. Only the following investors qualify to purchase
                      the Fixed Income Funds' Fiduciary Shares: (i) fiduciary,
                      advisory, agency, custodial and other similar accounts
                      maintained with Union Bank of California, N.A. or its
                      affiliates; (ii) Select IRA accounts established with The
                      Bank of California, N.A. and invested in any of HighMark's
                      Equity or Fixed Income Funds prior to June 20, 1994, which
                      have remained continuously open thereafter and which are
                      not considered to be fiduciary accounts; (iii)
                      Shareholders who currently own Shares of HighMark's Equity
                      or Fixed Income Funds that were purchased prior to June
                      20, 1994 within an account registered in their name with
                      the Funds; and (iv) present and retired directors,
                      officers and employees (and their spouses and children
                      under the age of 21) of Union Bank of California, N.A.,
                      HighMark's current or former distributors or their
                      respective affiliated companies who currently own Shares
                      of HighMark Funds which were purchased before April 30,
                      1997. For a description of investors who qualify to
                      purchase Retail Shares, see the Retail Shares prospectus
                      of the Fixed Income Funds.
 
                        Purchases and redemptions of Shares of the Fixed Income
                      Funds may be made on days on which both the New York Stock
                      Exchange and Federal Reserve wire system are open for
                      business ("Business Days"). The minimum initial investment
                      is generally $1,000 and the minimum subsequent investment
                      is generally $100. For present and retired directors,
                      officers, and employees (and their spouses and children
                      under the age of 21) of Union Bank of California, SEI
                      Financial Services Company and their affiliates, the
                      minimum initial investment is $250 and the minimum
                      subsequent investment is $50. A Fund's initial and
                      subsequent minimum purchase amounts may be waived in the
                      Distributor's discretion if purchases are made in
                      connection with Individual Retirement Accounts, Keoghs,
                      payroll deduction plans, 401(k) or similar programs or
                      accounts. However, the minimum investment may be waived.
                      Shareholders may place orders by telephone.
 
                                       16
<PAGE>   412
 
                        Purchase orders will be effective if the Distributor
                      receives an order before 1:00 p.m., Pacific time (4:00
                      p.m., Eastern time) and the Custodian receives Federal
                      funds before the close of business on the next Business
                      Day. The purchase price of Shares of a Fund is the net
                      asset value next determined after a purchase order is
                      received and accepted by HighMark. The net asset value per
                      Share of a Fund is determined by dividing the total market
                      value of a Fund's investments and other assets, less any
                      liabilities, by the total number of outstanding Shares of
                      a Fund. Net asset value per share is determined daily as
                      of 1:00 p.m., Pacific time (4:00 p.m., Eastern time) on
                      any Business Day. Purchases will be made in full and
                      fractional shares of HighMark calculated to three decimal
                      places. HighMark reserves the right to reject a purchase
                      order when the Distributor of the Advisor determines that
                      it is not in the best interest of HighMark and/or its
                      Shareholders to accept such order.
 
                        Shares of the Funds are offered only to residents of
                      states in which the Shares are eligible for purchase.
 
                        Shareholders who desire to redeem shares of HighMark
                      must place their redemption orders prior to 1:00 p.m.,
                      Pacific time (4:00 p.m., Eastern time), on any Business
                      Day for the order to be accepted on that Business Day. The
                      redemption price is the net asset value of the Fund next
                      determined after receipt by the Distributor of the
                      redemption order. Payment on redemption will be made as
                      promptly as possible and, in any event, within seven
                      calendar days after the redemption order is received. The
                      Funds reserve the right to make payment on redemptions in
                      securities rather than cash.
 
                        Neither HighMark's transfer agent nor HighMark will be
                      responsible for any loss, liability, cost or expense for
                      acting upon wire instructions or upon telephone
                      instructions that it reasonably believes to be genuine.
                      HighMark and its transfer agent will each employ
                      reasonable procedures to confirm that telephone
                      instructions are genuine. Such procedures may include
                      taping of telephone conversations. If market conditions
                      are extraordinarily active or other extraordinary
                      circumstances exist, and you experience difficulties
                      placing redemption orders by telephone, you may wish to
                      consider placing your order by other means.
 
EXCHANGE
PRIVILEGES              As indicated under GENERAL INFORMATION--Description of
                      HighMark & Its Shares, certain of HighMark's Funds issues
                      two classes of Shares (Retail Shares and Fiduciary
                      Shares); as of the date of this Prospectus, the
                      Distribution Plan and distribution fee payable thereunder
                      are applicable only to each Fund's Retail Shares. A
                      Shareholder's eligibility to exchange into a particular
                      class of Shares will be determined at the time of the
                      exchange. The Shareholder must supply, at the time of the
                      exchange, the necessary information to permit confirmation
                      of qualification.
 
                                       17
<PAGE>   413
 
                        Each Fund's Shares may be exchanged for Shares of the
                      class of the various other Funds of HighMark which the
                      Shareholder qualifies to purchase directly so long as the
                      Shareholder maintains the applicable minimum account
                      balance in each Fund in which he or she owns Shares and
                      satisfies the minimum initial and subsequent purchase
                      amounts of the Fund into which the Shares are exchanged.
                      Shareholders may exchange their Fiduciary Shares for
                      Fiduciary Shares of another Fund on the basis of the
                      relative net asset value of the Fiduciary Shares
                      exchanged. Shareholders may also exchange Fiduciary Shares
                      of a Fund for Retail Shares of another Fund. Under such
                      circumstances, the cost of the acquired Retail Shares will
                      be the net asset value per share plus the appropriate
                      sales load.
 
                        Exchanges will be made on the basis of the relative net
                      asset values of the Shares exchanged plus any applicable
                      sales charge. Exchanges are subject to the terms and
                      conditions stated herein and the terms and conditions
                      stated in the respective prospectuses of the Funds.
 
                        Certain entities (including Participating Organizations
                      and Union Bank of California and its affiliates), however,
                      may charge customers a fee with respect to exchanges made
                      on the customer's behalf. Information about these charges,
                      if any, can be obtained by the entity effecting the
                      exchange and this Prospectus should be read in conjunction
                      with that information.
 
                        A Shareholder wishing to exchange Shares in a Fixed
                      Income Fund may do so by contacting the Transfer Agent at
                      1-800-433-6884. Exchanges will be effected on any Business
                      Day at the net asset value of the Funds involved in the
                      exchange next determined after the exchange request is
                      received by the Transfer Agent.
 
                        An exchange is considered to be a sale of Shares for
                      federal income tax purposes on which a Shareholder may
                      realize a capital gain or loss. Exchange privileges may be
                      exercised only in those states where Shares of such other
                      Funds of HighMark may legally be sold. HighMark may
                      materially amend or terminate the exchange privileges
                      described herein upon sixty days' notice.
 
DIVIDENDS               The net income of each of the Fixed Income Funds is
                      declared and paid monthly as a dividend to Shareholders of
                      record at the close of business on the day of declaration.
                      Net realized capital gains are distributed at least
                      annually to Shareholders of record.
 
                        Shareholders will automatically receive all income
                      dividends and capital gains distributions in additional
                      full and fractional Shares of a Fund at net asset value as
                      of the date of declaration (which is also the ex-dividend
                      date), unless the Shareholder elects to receive such
                      dividends or distributions in cash. Shareholders wishing
                      to receive their dividends in cash (or wishing to revoke a
                      previously made
 
                                       18
<PAGE>   414
 
                      election) must notify the transfer agent at P.O. Box 8416,
                      Boston, MA 02266-8416, and such election (or revocation
                      thereof) will become effective with respect to dividends
                      and distributions having record dates after notice has
                      been received. Dividends paid in additional Shares receive
                      the same tax treatment as dividends paid in cash.
 
FEDERAL
TAXATION                Each Fixed Income Fund intends to qualify for treatment
                      as a "regulated investment company" under the Internal
                      Revenue Code of 1986, as amended (the "Code"), and to
                      distribute substantially all of its net investment income
                      and net realized capital gains so that each Fund is not
                      required to pay federal taxes on these amounts. Because
                      all of the net investment income of the Fixed Income Funds
                      is expected to be derived from interest, it is anticipated
                      that no part of any distribution will be eligible for the
                      federal dividends received deduction.
 
                        Distributions of ordinary income and/or an excess of net
                      short-term capital gain over net long-term capital loss
                      are treated for federal income tax purposes as ordinary
                      income to Shareholders. Distributions by the Fund of the
                      excess of net long-term capital gain over net short-term
                      capital loss is taxable to Shareholders as long-term
                      capital gain in the year with respect to which it is
                      received, regardless of how long the Shareholder has held
                      Shares of the Fund. Such distributions are not eligible
                      for the dividends received deduction. If a Shareholder
                      disposes of Shares in a Fund at a loss before holding such
                      Shares for longer than six months, such loss will be
                      treated as a long-term capital loss to the extent the
                      Shareholder has received long-term capital gain dividends
                      on the Shares.
 
                        Prior to purchasing Shares of the Fixed Income Funds,
                      the impact of dividends or capital gain distributions that
                      are expected to be declared or have been declared, but not
                      paid, should be carefully considered. Dividends or capital
                      gain distributions received after a purchase of Shares are
                      subject to federal income taxes, although in some
                      circumstances, the dividends or distributions may be, as
                      an economic matter, a return of capital to the
                      Shareholder. A Shareholder should consult his or her
                      advisor for specific advice about the tax consequences to
                      the Shareholder of investing in a Fund.
 
                        Fund investments in foreign securities may be subject to
                      withholding taxes at the source on dividend or interest
                      payments. In that case, the Fund's yield on those
                      securities would be decreased. The Fund does not expect to
                      be eligible to elect to permit shareholders to claim a
                      credit or deduction on their income tax return for their
                      pro rata share of such taxes.
 
                        Fund transactions in foreign currencies and hedging
                      activities may give rise to ordinary income or loss to the
                      extent such income or loss results from fluctuations in
                      value of the foreign currency concerned. In addition, such
                      activities will likely produce a difference between book
                      income and taxable income. This difference
 
                                       19
<PAGE>   415
 
                      may cause a portion of the Fund's income distributions to
                      constitute a return of capital for tax purposes or require
                      the Fund to make distributions exceeding book income to
                      qualify as a regulated investment company for tax
                      purposes.
 
                        Additional information regarding federal taxes is
                      contained in the Statement of Additional Information.
                      However, the foregoing and the material in the Statement
                      of Additional Information are only brief summaries of some
                      of the important tax considerations generally affecting
                      each Fund and its Shareholders. In addition, the foregoing
                      discussion and the federal tax information in the
                      Statement of Additional Information are based on tax laws
                      and regulations which are in effect as of the date of this
                      Prospectus; these laws and regulations may subsequently
                      change, and such changes could be retroactive.
 
                        Shareholders will be advised at least annually as to the
                      federal income tax status of distributions made during the
                      year.
 
SERVICE
ARRANGEMENTS          The Advisor
 
                        Pacific Alliance Capital Management, a division of Union
                      Bank of California, serves as the Fixed Income Funds'
                      investment advisor. Subject to the general supervision of
                      HighMark's Board of Trustees, the Advisor manages each
                      Fund in accordance with its investment objective and
                      policies, makes decisions with respect to and places
                      orders for all purchases and sales of the Fund's
                      investment securities, and maintains the Fund's records
                      relating to such purchases and sales.
 
                        For the expenses assumed and services provided by the
                      Advisor as each Fund's investment advisor, Union Bank of
                      California receives a fee from the Intermediate-Term Bond
                      Fund, the Bond Fund, and the Government Securities Fund
                      computed daily and paid monthly, at the annual rate of
                      fifty one-hundredths of one percent (.50%) of the Fund's
                      average daily net assets. Depending on the size of the
                      Fund, this fee may be higher than the advisory fee paid by
                      most mutual funds, although the Board of Trustees believes
                      it will be comparable to advisory fees paid by many funds
                      having similar objectives and policies. Union Bank of
                      California may from time to time agree to voluntarily
                      reduce its advisory fee, however, it is not currently
                      doing so. While there can be no assurance that Union Bank
                      of California will choose to make such an agreement, any
                      voluntary reductions in Union Bank of California's
                      advisory fee will lower the Fund's expenses, and thus
                      increase the Fund's yield and total return, during the
                      period such voluntary reductions are in effect. During
                      HighMark's fiscal year ended July 31, 1996, Union Bank of
                      California received investment advisory fees from the Bond
                      Fund aggregating 0.45% of the Fund's average daily net
                      assets. As of the date of this prospectus, the
                      Intermediate-Term Bond Fund and the Government Securities
                      Fund had not yet commenced operations in HighMark.
 
                                       20
<PAGE>   416
 
                        On April 1, 1996, The Bank of California, N.A.,
                      HighMark's then investment advisor, combined with Union
                      Bank and the resulting bank changed its name to Union Bank
                      of California, N.A. At the same time, the banks'
                      investment management divisions were combined. Each of
                      Union Bank and The Bank of California, N.A. (or their
                      predecessor banks) has been in banking since the early
                      1900's and, historically, each has had significant
                      investment functions within its trust and investment
                      division. UnionBanCal Corporation, the parent of Union
                      Bank of California, N.A., is a publicly held corporation,
                      but is principally held by The Bank of Tokyo-Mitsubishi,
                      Ltd. As of September 30, 1996, Union Bank of California
                      and its subsidiaries had approximately $28.7 billion in
                      commercial assets. Pacific Alliance Capital Management is
                      a division of Union Bank of California's Trust and
                      Investment Management Group, which, as of June 30, 1996,
                      had approximately $13.4 billion of assets under
                      management. The Advisor, with a team of approximately 45
                      stock and bond research analysts, portfolio managers and
                      traders, has been providing investment management services
                      to individuals, institutions and large corporations since
                      1917.
 
                        All investment decisions for the Fixed Income Funds are
                      made by a team of investment professionals, all of whom
                      take an active part in the decision making process. The
                      team leader for both the Intermediate-Term Bond Fund and
                      the Bond Fund is E. Jack Montgomery. Mr. Montgomery is a
                      Vice President of the Advisor and has served as the
                      portfolio manager of the Bond Fund since June, 1994. Prior
                      to joining the Advisor, Mr. Montgomery was employed by the
                      San Francisco Employees' Retirement System and, prior to
                      that, First Interstate Bank of Oregon. Mr. Montgomery
                      graduated from the University of Oklahoma in 1971 and
                      earned his M.B.A. from the University of Oregon.
                      Investment decisions for the Government Securities Fund
                      are primarily made by the Sub-Advisor as described below.
 
                      The Sub-Advisor
 
                        The Advisor and Bank of Tokyo-Mitsubishi Trust Company
                      (the "Sub-Advisor") have entered into an investment
                      sub-advisory agreement relating to the Government
                      Securities Fund (the "Investment Sub-Advisory Agreement").
                      Under the Investment Sub-Advisory Agreement, the
                      Sub-Advisor makes the day-to-day investment decisions for
                      the assets of the Government Securities Fund, subject to
                      the supervision of and policies established by the Advisor
                      and the Trustees of HighMark.
 
                        Bank of Tokyo-Mitsubishi Trust Company, headquartered at
                      1251 Avenue of the Americas, New York, New York 10116,
                      operates as a wholly-owned subsidiary of The Bank of
                      Tokyo-Mitsubishi, Limited. The Sub-Advisor was formed by
                      the combination on April 1, 1996 of Bank of Tokyo Trust
                      Company, a wholly-owned subsidiary of the Bank of Tokyo,
                      Ltd., and Mitsubishi Bank Trust
 
                                       21
<PAGE>   417
 
                      Company of New York, a wholly-owned subsidiary of The
                      Mitsubishi Bank, Ltd. Bank of Tokyo Trust Company was the
                      surviving entity, and changed its name to Bank of
                      Tokyo-Mitsubishi Trust Company. Bank of Tokyo Trust
                      Company was established in 1955 and has provided trust
                      services since that time and management services since
                      1965.
 
                        The Sub-Advisor serves as portfolio manager to bank
                      common funds, employee benefit funds and personal trust
                      accounts, managing assets in money market, equity and
                      fixed income portfolios. As of June 30, 1996, the
                      Sub-Advisor managed $700 million in individual portfolios
                      and collective funds. In addition, the Sub-Advisor also
                      serves as Sub-Advisor to HighMark's Convertible
                      Securities, Emerging Growth and Blue Chip Growth Funds.
 
                        The Sub-Advisor is entitled to a fee, which is
                      calculated daily and paid monthly out of the Advisor's
                      fee, at an annual rate of .20% of the average daily net
                      assets of the Government Securities Fund. As of the date
                      of this prospectus, the Government Securities Fund had not
                      yet commenced operations in HighMark.
 
                        Stephen W. Blocklin will serve as portfolio manager of
                      the Government Securities Fund. Mr. Blocklin has been a
                      Vice President with the Sub-Advisor and its predecessor,
                      Bank of Tokyo Trust Company since December, 1993. From
                      September 1988 to December, 1993, he served as a senior
                      fixed income fund manager in the institutional investment
                      management group at First Fidelity Bancorporation.
 
                      Administrator
 
                        SEI Fund Resources (the "Administrator") and HighMark
                      are parties to an administration agreement (the
                      "Administration Agreement"). Under the terms of the
                      Administration Agreement, the Administrator provides
                      HighMark with certain management services, including all
                      necessary office space, equipment, personnel, and
                      facilities.
 
                        The Administrator is entitled to a fee, which is
                      calculated daily and paid monthly, at an annual rate of
                      .20% of the average daily net assets of the Funds. The
                      Administrator may waive its fee or reimburse various
                      expenses to the extent necessary to limit the total
                      operating expenses of a Fund's Fiduciary Shares. Any such
                      waiver is voluntary and may be terminated at any time in
                      the Administrator's sole discretion. Currently, the
                      Administrator has agreed to waive its fee to the rate of
                      .18% of the average daily net assets of the Funds.
 
                        Pursuant to a separate agreement with the Administrator,
                      Union Bank of California, N.A. performs sub-administration
                      services on behalf of each Fund, for which it receives a
                      fee paid by the Administrator at the annual rate of up to
                      0.05%
 
                                       22
<PAGE>   418
 
                      of the average daily net assets of the Funds. Union Bank
                      of California has voluntarily agreed to reduce this fee to
                      0.03%, but reserves the right to terminate its waiver at
                      any time in its sole discretion. A description of the
                      services performed by Union Bank of California pursuant to
                      this Agreement is contained in the Statement of Additional
                      Information.
 
                      The Transfer Agent
 
                        State Street Bank and Trust Company serves as the
                      transfer agent, dividend disbursing agent, and as a
                      shareholder servicing agent for the Fiduciary Shares of
                      HighMark, for which services it receives a fee.
 
                      Shareholder Service Plan
 
                        To support the provision of Shareholder services to both
                      classes of Shares, HighMark has adopted a Shareholder
                      Service Plan. A description of the services performed by
                      service providers pursuant to the Shareholder Service Plan
                      is contained in the Statement of Additional Information.
                      In consideration of services provided by any service
                      provider, which may include Union Bank of California,
                      N.A., Bank of Tokyo-Mitsubishi, Ltd., or their respective
                      affiliates, each Fund may pay a fee at the rate of up to
                      0.25% of its average daily net assets to such service
                      provider. The service provider may waive such fees at any
                      time. Any such waiver is voluntary and may be terminated
                      at any time. Currently, such fees are being waived to the
                      rate of 0.03% of average daily net assets for the
                      Intermediate-Term Bond Fund, 0.01% of the average daily
                      net assets for the Bond Fund, and 0.00% of the average
                      daily net assets for the Government Securities Fund.
 
                      Distributor
 
                        SEI Financial Services Company (the "Distributor") and
                      HighMark are parties to a distribution agreement
                      ("Distribution Agreement"). The Distribution Agreement is
                      renewable annually and may be terminated by the
                      Distributor, by a majority vote of the Disinterested
                      Trustees or by a majority vote of the outstanding
                      securities of HighMark upon not more than 60 days written
                      notice by either party, or upon assignment by the
                      Distributor. Fiduciary Shares are not subject to
                      HighMark's Distribution Plan or a distribution fee.
 
                      Banking Laws
 
                        Union Bank of California believes that it may perform
                      the services for the Funds contemplated by its investment
                      advisory agreement with HighMark without a violation of
                      applicable banking laws and regulations. Union Bank of
                      California also believes that it may perform
                      sub-administration and sub-accounting services on behalf
                      of each Fund, for which it receives compensation from SEI
                      Fund Resources, without a violation of applicable banking
                      laws and regulations.
 
                                       23
<PAGE>   419
 
                      Future changes in federal or state statutes and
                      regulations relating to permissible activities of banks or
                      bank holding companies and their subsidiaries and
                      affiliates, as well as further judicial or administrative
                      decisions or interpretations of present and future
                      statutes and regulations, could change the manner in which
                      Union Bank of California or the Advisor could continue to
                      perform such services for the Funds. For a further
                      discussion of applicable banking laws and regulations, see
                      the Statement of Additional Information.
 
                      Custodian
 
                        Union Bank of California also serves as the custodian
                      and as a shareholder servicing agent for the Fixed Income
                      Funds. The Custodian holds cash securities and other
                      assets of HighMark as required by the 1940 Act.
 
                        Services performed by Union Bank of California, as the
                      Funds' shareholder servicing agent and custodian, as well
                      as the basis of remuneration for such services, are
                      described in the Statement of Additional Information.
 
GENERAL
INFORMATION           Description of HighMark & Its Shares
 
                        HighMark was organized as a Massachusetts business trust
                      on March 10, 1987, and consists of sixteen series of
                      Shares open for investment representing units of
                      beneficial interest in HighMark's Growth Fund, Income
                      Equity Fund, Balanced Fund, Value Momentum Fund, Blue Chip
                      Growth Fund, Emerging Growth Fund, International Equity
                      Fund, Bond Fund, Intermediate-Term Bond Fund, Government
                      Securities Fund, Convertible Securities Fund, California
                      Intermediate Tax-Free Bond Fund, Diversified Money Market
                      Fund, U.S. Government Obligations Money Market Fund, 100%
                      U.S. Treasury Obligations Money Market Fund and California
                      Tax-Free Money Market Fund. As of the date hereof, no
                      Shares of the Value Momentum Fund, the Blue Chip Growth
                      Fund, the Emerging Growth Fund, the International Equity
                      Fund, the Intermediate-Term Bond Fund, the Convertible
                      Securities Fund, the Government Securities Fund, and the
                      California Intermediate Tax-Free Bond Fund, had been
                      offered for sale in HighMark. Shares of each Fund are
                      freely transferable, are entitled to distributions from
                      the assets of the Fund as declared by the Board of
                      Trustees, and, if HighMark were liquidated, would receive
                      the net assets attributable to that Fund. Shares are
                      without par value.
 
                        As noted above, pursuant to a Multiple Class Plan on
                      file with the Securities and Exchange Commission
                      permitting the issuance and sale of two classes of Shares
                      in selected Funds, Shares of such Funds have been divided
                      into two classes, designated Retail Shares and Fiduciary
                      Shares. For information regarding the Retail Shares of the
                      Fixed Income Funds, interested persons may contact the
                      Distributor for a prospectus at 1-800-433-6884.
 
                                       24
<PAGE>   420
 
                        HighMark believes that as of November 22, 1996, Union
                      Bank of California (475 Sansome Street, Post Office Box
                      45000, San Francisco, CA 94104) was the Shareholder of
                      record of 88.27% of the Fiduciary Shares of the Bond Fund.
                      As of November 22, 1996, the Intermediate-Term Bond Fund
                      and the Government Securities Fund had not yet commenced
                      operations in HighMark.
 
                      Performance Information
 
                        From time to time, HighMark may advertise the aggregate
                      total return, average annual total return, yield and
                      distribution rate with respect to the Fiduciary Shares of
                      each Fixed Income Fund. Performance information is
                      computed separately for a Fund's Retail and Fiduciary
                      Shares in accordance with the formulas described below.
 
                        The aggregate total return and average annual total
                      return of the Fixed Income Funds may be quoted for the
                      life of each Fund and for ten-year, five-year and one-year
                      periods, in each case through the most recent calendar
                      quarter. Aggregate total return is determined by
                      calculating the change in the value of a hypothetical
                      $1,000 investment in a Fund over the applicable period
                      that would equate the initial amount invested to the
                      ending redeemable value of the investment. The ending
                      redeemable value includes dividends and capital gain
                      distributions reinvested at net asset value. Average
                      annual total return is calculated by annualizing a Fund's
                      aggregate total return over the relevant number of years.
                      The resulting percentage indicates the average positive or
                      negative investment results that an investor in a Fund
                      would have experienced on an annual basis from changes in
                      Share price and reinvestment of dividends and capital gain
                      distributions.
 
                        The yield of a Fund is determined by annualizing the net
                      investment income per Share of the Fund during a specified
                      thirty-day period and dividing that amount by the per
                      Share public offering price of the Fund on the last day of
                      the period.
 
                        The distribution rate of a Fund is determined by
                      dividing the income and capital gains distributions, or
                      where indicated the income distributions alone, on a Share
                      of the Fund over a twelve-month period by the per Share
                      public offering price of the Fund on the last day of the
                      period.
 
                        Each Fund may periodically compare its performance to
                      the performance of other mutual funds tracked by mutual
                      fund rating services (such as Lipper Analytical),
                      financial and business publications and periodicals; broad
                      groups of comparable mutual funds; unmanaged indices which
                      may assume investment of dividends but generally do not
                      reflect deductions for administrative and management
                      costs; or other investment alternatives. Certain Funds may
                      advertise
 
                                       25
<PAGE>   421
 
                      performance that includes results from periods in which
                      the Fund's assets were managed in a non-registered
                      predecessor vehicle.
 
                        All performance information presented for a Fund is
                      based on past performance and does not predict future
                      performance.
 
                      Miscellaneous
 
                        Shareholders will be sent unaudited semi-annual reports
                      and annual reports audited by independent public
                      accountants.
 
                        Shareholders are entitled to one vote for each Share
                      held in a Fund as determined on the record date for any
                      action requiring a vote by the Shareholders, and a
                      proportionate fractional vote for each fractional Share
                      held. Shareholders of HighMark will vote in the aggregate
                      and not by series or class except (i) as otherwise
                      expressly required by law or when HighMark's Board of
                      Trustees determines that the matter to be voted upon
                      affects only the interests of the Shareholders of a
                      particular series or particular class, and (ii) only
                      Retail Shares will be entitled to vote on matters
                      submitted to a Shareholder vote relating to the
                      Distribution Plan. HighMark is not required to hold
                      regular annual meetings of Shareholders, but may hold
                      special meetings from time to time.
 
                        HighMark's Trustees are elected by Shareholders, except
                      that vacancies may be filled by vote of the Board of
                      Trustees. Trustees may be removed by the Board of
                      Trustees, or by Shareholders at a meeting called for such
                      purpose. For information about how Shareholders may call
                      such a meeting and communicate with other Shareholders for
                      that purpose, see ADDITIONAL INFORMATION--Miscellaneous in
                      the Statement of Additional Information.
 
                        Inquiries may be directed in writing to SEI Financial
                      Services Company, Oaks, Pennsylvania 19456, or by calling
                      toll free 1-800-433-6884.
 
DESCRIPTION OF
PERMITTED
INVESTMENTS             The following is a description of permitted investments
                      for the HighMark Fixed Income Funds.
 
                        ASSET-BACKED SECURITIES (NON-MORTGAGE)--Debt Instruments
                      secured by company receivables, truck and auto loans,
                      leases, and credit card receivables. Such securities are
                      generally issued as pass-through certificates, which
                      represent undivided fractional ownership interests in the
                      underlying pools of assets. Such securities also may be
                      debt instruments, which are also known as collateralized
                      obligations and are generally issued as the debt of a
                      special purpose entity, such as a trust, organized solely
                      for the purpose of owning such assets and issuing such
                      debt. The purchase of non-mortgage asset-backed securities
                      raises risk considerations peculiar to the financing of
                      the instruments underlying such securities. Asset-backed
                      securities entail prepayment risk, which may vary
 
                                       26
<PAGE>   422
 
                      depending on the type of asset, but is generally less than
                      the prepayment risk associated with mortgage-backed
                      securities.
 
                        Like mortgages underlying mortgage-backed securities,
                      underlying automobile sales contracts or credit card
                      receivables are subject to substantial prepayment risk,
                      which may reduce the overall return to certificate
                      holders. Nevertheless, principal prepayment rates tend not
                      to vary as much in response to changes in interest rates
                      and the short-term nature of the underlying car loans or
                      other receivables tend to dampen the impact of any change
                      in the prepayment level. Certificate holders may also
                      experience delays in payment on the certificates if the
                      full amounts due on underlying sales contracts or
                      receivables are not realized by the trust because of
                      unanticipated legal or administrative costs of enforcing
                      the contracts or because of depreciation or damage to the
                      collateral (usually automobiles) securing certain
                      contracts, or other factors. If consistent with their
                      investment objectives and policies, the Fixed Income Funds
                      may invest in other asset-backed securities that may be
                      developed in the future.
 
                        BANKERS' ACCEPTANCES--Bills of exchange or time drafts
                      drawn on and accepted by commercial banks. They are used
                      by corporations to finance the shipment and storage of
                      goods and to furnish dollar exchange. Maturities are
                      generally six months or less.
 
                        CERTIFICATES OF DEPOSIT--Negotiable interest-bearing
                      instruments with a specific maturity. Certificates of
                      deposit are issued by banks and savings and loan
                      institutions in exchange for the deposit of funds and
                      normally can be traded in the secondary market prior to
                      maturity.
 
                        COMMERCIAL PAPER--Unsecured short-term promissory notes
                      issued by corporations and other entities. Maturities on
                      these issues vary from a few days to nine months. Purchase
                      of such instruments involves a risk of default by the
                      issuer.
 
                        CONVERTIBLE BONDS AND CONVERTIBLE PREFERRED
                      STOCK--Convertible Bonds are bonds convertible into a set
                      number of shares of another form of security (usually
                      common stock) at a prestated price. Convertible bonds have
                      characteristics similar to both fixed-income and equity
                      securities. Convertible preferred stock is a class of
                      capital stock that pays dividends at a specified rate and
                      that has preference over common stock in the payment of
                      dividends and the liquidation of assets. Convertible
                      preferred stock is preferred stock exchangeable for a
                      given number of common stock shares, and has
                      characteristics similar to both fixed-income and equity
                      securities. Because of the conversion feature, the market
                      value of convertible bonds and convertible preferred stock
                      tend to move together with the market value of the
                      underlying stock. As a result, a Fund's selection of
                      convertible bonds and convertible preferred stock is
                      based, to a great extent, on the potential for capital
                      appreciation that may
 
                                       27
<PAGE>   423
 
                      exist in the underlying stock. The value of convertible
                      bonds and convertible preferred stock is also affected by
                      prevailing interest rates, the credit quality of the
                      issuer and any call provisions.
 
                        DERIVATIVES--Instruments whose value is derived from an
                      underlying contract, index or security, or any combination
                      thereof, including futures, options (e.g., puts and
                      calls), options on futures, swap agreements, and some
                      mortgage-backed securities (CMOs, REMICs, IOs and POs).
                      See elsewhere in this "DESCRIPTION OF PERMITTED
                      INVESTMENTS" for discussions of these various instruments,
                      and see "INVESTMENT OBJECTIVES" and "INVESTMENT POLICIES"
                      for more information about any policies and limitations
                      applicable to their use.
 
                        FUTURES AND OPTIONS ON FUTURES--Some futures strategies,
                      including selling futures, buying puts and writing calls,
                      reduce a Fund's exposure to price fluctuations. Other
                      strategies, including buying futures, writing puts and
                      buying calls, tend to increase market exposure. Futures
                      and options may be combined with each other in order to
                      adjust the risk and return characteristics of the overall
                      portfolio.
 
                        Options and futures can be volatile instruments, and
                      involve certain risks that, if applied at an inappropriate
                      time, could negatively impact a Fund's return.
 
                        INVESTMENT GRADE BONDS--Interest-bearing or discounted
                      government or corporate securities that obligate the
                      issuer to pay the bondholder a specified sum of money,
                      usually at specific intervals, and to repay the principal
                      amount of the loan at maturity. Investment grade bonds are
                      those rated BBB or better by S&P or Baa or better by
                      Moody's or similarly rated by other NRSROs, or, if not
                      rated, determined to be of comparable quality by the
                      Advisor.
 
                        LOAN PARTICIPATIONS--Loan participations are interests
                      in loans to U.S. corporations (i.e., borrowers) which are
                      administered by the lending bank or agent for a syndicate
                      of lending banks, and sold by the lending bank or
                      syndicate member ("intermediary bank"). In a loan
                      participation, the borrower of the underlying loan will be
                      deemed to be the issuer of the participation interest
                      (except to the extent a purchasing Fund derives its rights
                      from the intermediary bank). Because the intermediary bank
                      does not guarantee a loan participation in any way, a loan
                      participation is subject to the credit risks associated
                      with the underlying corporate borrower. In addition, in
                      the event the underlying corporate borrower fails to pay
                      principal and interest when due, a Fund may encounter
                      delays, expenses and risks that are greater than those
                      that would have been involved if the Fund had purchased a
                      direct obligation (such as commercial paper) of such
                      borrower because it may be necessary under the terms of
                      the loan participation, for the Fund to assert its rights
                      against the borrower through the
 
                                       28
<PAGE>   424
 
                      intermediary bank. Moreover, under the terms of a loan
                      participation, the purchasing Fund may be regarded as a
                      creditor of the intermediary bank (rather than of the
                      underlying corporate borrower), so that a Fund may also be
                      subject to the risk that the issuing bank may become
                      insolvent. Further, in the event of the bankruptcy or
                      insolvency of the corporate borrower, a loan participation
                      may be subject to certain defenses that can be asserted by
                      such borrower as a result of improper conduct by the
                      issuing bank. The secondary market, if any, for these loan
                      participations is limited, and any such participation
                      purchased by a Fund may be regarded as illiquid.
 
                        MONEY MARKET INSTRUMENTS--Short-term, debt instruments
                      or deposits and may include, for example, (i) commercial
                      paper rated within the highest rating category by a NRSRO
                      at the time of investment, or, if not rated, determined by
                      the Advisor to be of comparable quality; (ii) obligations
                      (certificates of deposit, time deposits, bank master
                      notes, and bankers' acceptances) of thrift institutions,
                      savings and loans, U.S. commercial banks (including
                      foreign branches of such banks), and U.S. and foreign
                      branches of foreign banks, provided that such institutions
                      (or, in the case of a branch, the parent institution) have
                      total assets of $1 billion or more as shown on their last
                      published financial statements at the time of investment;
                      (iii) short-term corporate obligations rated within the
                      three highest rating categories by a NRSRO (e.g., at least
                      A by S&P or A by Moody's) at the time of investment, or,
                      if not rated, determined by the Advisor to be of
                      comparable quality; (iv) general obligations issued by the
                      U.S. Government and backed by its full faith and credit,
                      and obligations issued or guaranteed as to principal and
                      interest by agencies or instrumentalities of the U.S.
                      Government (e.g., obligations issued by Farmers Home
                      Administration, Government National Mortgage Association,
                      Federal Farm Credit Bank and Federal Housing
                      Administration); (v) receipts, including TRs, TIGRs and
                      CATS; (vi) repurchase agreements involving such
                      obligations; (vii) loan participations issued by a bank in
                      the United States with assets exceeding $1 billion and for
                      which the underlying loan is issued by borrowers in whose
                      obligations the Fund may invest; (viii) money market funds
                      and (ix) foreign commercial paper.
 
                        Certain of the obligations in which a Fund may invest
                      may be variable or floating rate instruments, may involve
                      conditional or unconditional demand features and may
                      include variable amount master demand notes.
 
                        MORTGAGE-BACKED SECURITIES--Securities generally issued
                      or guaranteed by U.S. government agencies such as GNMA,
                      FNMA, or FHLMC. GNMA mortgage-backed certificates are
                      mortgage-backed securities of the modified pass-through
                      type, which means that both interest and principal
                      payments (including prepayments) are passed through
                      monthly to the holder of the certificate. Each GNMA
                      certificate evidences an interest in a specific pool of
 
                                       29
<PAGE>   425
 
                      mortgage loans insured by the Federal Housing
                      Administration or the Farmers Home Administration or
                      guaranteed by the Veterans Administration. FNMA, a
                      federally-chartered and stockholder-owned corporation,
                      issues pass-through certificates which are guaranteed as
                      to payment of principal and interest by FNMA. FHLMC, a
                      corporate instrumentality of the United States, issues
                      participation certificates which represent an interest in
                      mortgages held in FHLMC's portfolio. FHLMC guarantees the
                      timely payment of interest and the ultimate collection of
                      principal. Securities issued or guaranteed by FNMA and
                      FHLMC are not backed by the full faith and credit of the
                      United States. There can be no assurance that the U.S.
                      government would provide financial support to FNMA or
                      FHLMC if necessary in the future.
 
                        Although payments on certain mortgage-related securities
                      may be guaranteed by a third party or otherwise similarly
                      secured, the market value of such securities is not
                      secured and may fluctuate significantly because of changes
                      in interest rates and changes in prepayment levels. Thus,
                      for example, if a Fund purchases a mortgage-related
                      security at a premium, that portion may be lost if there
                      is a decline in the market value of the security whether
                      due to changes in interest rates or prepayments of the
                      underlying mortgage collateral. As with other
                      interest-bearing securities, the prices of
                      mortgage-related securities are inversely affected by
                      changes in interest rates. However, although the value of
                      a mortgage-related security may decline when interest
                      rates rise, the converse is not necessarily true because
                      in periods of declining interest rates the mortgages
                      underlying the securities are prone to prepayment which
                      results in amounts being available for reinvestment which
                      are likely to be invested at a lower interest rate. For
                      this and other reasons, the stated maturity of a
                      mortgage-related security may be shortened by unscheduled
                      prepayments on the underlying mortgages and, accordingly,
                      it is not possible to predict accurately the security's
                      return to a Fund. In addition, regular payments received
                      on mortgage-related securities include both interest and
                      principal. No assurance can be given as to the return a
                      Fund will receive when these amounts are reinvested. As a
                      consequence, mortgage-related securities may be a less
                      effective means of "locking in" interest rates than other
                      types of debt securities having the same stated maturity,
                      may have less potential for capital appreciation and may
                      be considered riskier investments as a result.
 
                        Adjustable rate mortgage securities ("ARMS") are
                      pass-through certificates representing ownership interests
                      in a pool of adjustable rate mortgages and the resulting
                      cash flow from those mortgages. Unlike conventional debt
                      securities, which provide for periodic (usually
                      semi-annual) payments of interest and payments of
                      principal at maturity or on specified call dates, ARMs
                      provide for monthly payments based on a pro rata share of
                      both periodic interest and principal payments and
                      prepayments of principal on the underlying mortgage pool
 
                                       30
<PAGE>   426
 
                      (less GNMA's, FNMA's, or FHLMC's fees and any applicable
                      loan servicing fees).
 
                        Collateralized mortgage obligations ("CMOs") are bonds
                      generally issued by single purpose, stand-alone finance
                      subsidiaries or trusts established by financial
                      institutions, government agencies, investment banks, or
                      other similar institutions, and collateralized by pools of
                      mortgage loans. Payments of principal and interest on the
                      collateral mortgages are used to pay debt service on the
                      CMO. In a CMO, a series of bonds or certificates is issued
                      in multiple classes. Each class of CMOs, often referred to
                      as a "tranche," is issued at a specific coupon rate and
                      has a stated maturity or final distribution date. The
                      principal and interest payment on the underlying mortgages
                      may be allocated among the classes of CMOs in several
                      ways. Typically, payments of principal, including any
                      prepayments, on the underlying mortgages would be applied
                      to the classes in the order of their respective stated
                      maturities or final distribution dates, so that no payment
                      of principal will be made on CMOs of a class until all
                      CMOs of other classes having earlier stated maturities or
                      final distribution dates have been paid in full.
 
                        One or more classes of CMOs may have coupon rates that
                      reset periodically based on an index, such as the London
                      Interbank Offered Rate ("LIBOR"). Each Fund may purchase
                      fixed, adjustable, or "floating" rate CMOs that are
                      collateralized by fixed rate or adjustable rate mortgages
                      that are guaranteed as to payment of principal and
                      interest by an agency or instrumentality of the U.S.
                      government or are directly guaranteed as to payment of
                      principal and interest by the issuer, which guarantee is
                      collateralized by U.S. government securities or is
                      collateralized by privately issued fixed rate or
                      adjustable rate mortgages.
 
                        Securities such as zero-coupon obligations,
                      mortgage-backed and asset-backed securities, and
                      collateralized mortgage obligations ("CMOs") will have
                      greater price volatility then other fixed-income
                      obligations. Because declining interest rates may lead to
                      prepayment of underlying mortgages, automobile sales
                      contracts or credit card receivables, the prices of
                      mortgage-related and asset-backed securities may not rise
                      with a decline in interest rates. Mortgage-backed and
                      asset-backed securities and CMOs are extremely sensitive
                      to the rate of principal prepayment. Similarly, callable
                      corporate bonds also present risk of prepayment.
 
                        During periods of falling interest rates, securities
                      that can be called or prepaid may decline in value
                      relative to similar securities that are not subject to
                      call or prepayment.
 
                        Real Estate Mortgage Investment Conduits ("REMICs") are
                      private entities formed for the purpose of holding a fixed
                      pool of mortgages secured by an interest in real property.
                      REMICs are similar to CMOs in that they issue multiple
                      classes of securities.
 
                                       31
<PAGE>   427
 
                        OPTIONS--Under a call option, the purchaser of the
                      option has the right to purchase, and the writer (the
                      Fund) the obligation to sell, the underlying security at
                      the exercise price during the option period. A put option
                      gives the purchaser the right to sell, and the writer the
                      obligation to purchase, the underlying security at the
                      exercise price during the option period.
 
                        In addition, certain Funds may buy options on stock
                      indices to invest cash on an interim basis. Such options
                      will be listed on a national securities exchange. In order
                      to close out an option position, a Fund may enter into a
                      "closing purchase transaction" -- the purchase of an
                      option on the same security with the same exercise price
                      and expiration date as the option contract previously
                      written on any particular security. When the security is
                      sold, a Fund effects a closing purchase transaction so as
                      to close out any existing option on that security.
 
                        There are risks associated with such investments
                      including the following: (1) the success of a hedging
                      strategy may depend on the ability of the Advisor or
                      Sub-Advisor to predict movements in the prices of
                      individual securities, fluctuations in markets and
                      movements in interest rates; (2) there may be an imperfect
                      correlation between the movement in prices of securities
                      held by a Fund and the price of options; (3) there may not
                      be a liquid secondary market for options; and (4) while a
                      Fund will receive a premium when it writes covered call
                      options, it may not participate fully in a rise in the
                      market value of the underlying security.
 
                        RECEIPTS--Interests in separately traded interest and
                      principal component parts of U.S. Treasury obligations
                      that are issued by banks and brokerage firms and are
                      created by depositing Treasury notes and Treasury bonds
                      into a special account at a custodian bank. The custodian
                      holds the interest and principal payments for the benefit
                      of the registered owners of the certificates of such
                      receipts. The custodian arranges for the issuance of the
                      certificates or receipts evidencing ownership and
                      maintains the register. Receipts include "Treasury
                      Receipts" ("TR's"), "Treasury Investment Growth Receipts"
                      ("TIGR's"), and "Certificates of Accrual on Treasury
                      Securities" ("CATS"). TR's, TIGR's and CATS are sold as
                      zero coupon securities, which means that they are sold at
                      a substantial discount and redeemed at face value at their
                      maturity date without interim cash payments of interest or
                      principal. This discount is accreted over the life of the
                      security, and such accretion will constitute the income
                      earned on the security for both accounting and tax
                      purposes. Because of these features, such securities may
                      be subject to greater interest rate volatility than
                      interest-paying securities. See also "FEDERAL TAXATION."
 
                        REPURCHASE AGREEMENTS--Agreements whereby a Fund will
                      acquire securities from approved financial institutions or
                      registered broker-dealers that agree to repurchase the
                      securities at a mutually agreed-upon date and price. The
                      repurchase agreements entered into by the Funds will
                      provide that the underlying
 
                                       32
<PAGE>   428
 
                      security at all times shall have a value equal to 102% of
                      the resale price stated in the agreement. Repurchase
                      agreements involving government securities are not subject
                      to a Fund's fundamental investment limitation on
                      purchasing securities of any one issuer. If the seller
                      defaults on its repurchase obligation or becomes
                      insolvent, the Fund holding such obligations would suffer
                      a loss to the extent that either the proceeds from a sale
                      of the underlying portfolio securities were less than the
                      repurchase price or the Fund's disposition of the
                      securities was delayed pending court action. Securities
                      subject to repurchase agreements will be held by a
                      qualified custodian or in the Federal Reserve/Treasury
                      book-entry system. Repurchase agreements are considered to
                      be loans by a Fund under the Investment Company Act of
                      1940 (the "1940 Act").
 
                        REVERSE REPURCHASE AGREEMENTS--A Fund may borrow funds
                      for temporary purposes by entering into reverse repurchase
                      agreements, provided such action is consistent with the
                      Fund's investment objective and fundamental investment
                      restrictions; as a matter of non-fundamental policy, each
                      Fund intends to limit such investments to no more than 10%
                      of the value of its total assets. Pursuant to a reverse
                      repurchase agreement, a Fund will sell portfolio
                      securities to financial institutions such as banks or to
                      broker-dealers, and agree to repurchase the securities at
                      a mutually agreed-upon date and price. A Fund intends to
                      enter into reverse repurchase agreements only to avoid
                      otherwise selling securities during unfavorable market
                      conditions to meet redemptions. At the time a Fund enters
                      into a reverse repurchase agreement, it will place in a
                      segregated custodial account assets such as U.S.
                      Government securities or other liquid, high-quality debt
                      securities consistent with the Fund's investment objective
                      having a value equal to 102% of the repurchase price
                      (including accrued interest), and will subsequently
                      monitor the account to ensure that an equivalent value is
                      maintained. Reverse repurchase agreements involve the risk
                      that the market value of the securities sold by a Fund may
                      decline below the price at which a Fund is obligated to
                      repurchase the securities. Reverse repurchase agreements
                      are considered to be borrowings by a Fund under the 1940
                      Act.
 
                        RULE 144A SECURITIES--Rule 144A Securities are
                      securities that have not been registered under the
                      Securities Act of 1933, but which may be traded between
                      certain qualified institutional investors, including
                      investment companies. The absence of a secondary market
                      may affect the value of the Rule 144A Securities. The
                      Board of Trustees of the Group has established guidelines
                      and procedures to be utilized to determine the liquidity
                      of such securities.
 
                        SECURITIES ISSUED ON A FORWARD COMMITMENT BASIS OR
                      WHEN-ISSUED SECURITIES--Securities purchased for delivery
                      beyond the normal settlement date at a stated price and
                      yield and which thereby involve a risk that the yield
                      obtained in the transaction will be less than that
                      available in the
 
                                       33
<PAGE>   429
 
                      market when delivery takes place. When a Fund agrees to
                      purchase when-issued securities or enter into forward
                      commitments, the Group's custodian will be instructed to
                      set aside cash or liquid portfolio securities equal to the
                      amount of the commitment in a segregated account. A Fund
                      will generally not pay for such securities and no income
                      will accrue on the securities until they are received.
                      These securities are recorded as an asset and are subject
                      to changes in value based upon changes in the general
                      level of interest rates. Therefore, the purchase of
                      securities on a "when-issued" basis or forward commitments
                      may increase the risk of fluctuations in a Fund's net
                      asset value.
 
                        SECURITIES LENDING--During the time portfolio securities
                      are on loan from a Fund, the borrower will pay the Fund
                      any dividends or interest paid on the securities. In
                      addition, loans will be subject to termination by the Fund
                      or the borrower at any time and, while a Fund will
                      generally not have the right to vote securities on loan,
                      it will terminate the loan and regain the right to vote if
                      that is considered important with respect to the
                      investment. While the lending of securities may subject a
                      Fund to certain risks, such as delays or an inability to
                      regain the securities in the event the borrower were to
                      default on its lending agreement or enter into bankruptcy,
                      a Fund will receive 100% collateral in the form of cash or
                      U.S. Government securities. This collateral will be valued
                      daily by the lending agent, with oversight by the Advisor,
                      and, should the market value of the loaned securities
                      increase, the borrower will be required to furnish
                      additional collateral to the Fund.
 
                        SECURITIES SUBJECT TO A PUT FEATURE--A "put" feature
                      permits a Fund to sell a fixed income security at a fixed
                      price prior to maturity. The underlying fixed income
                      securities subject to a put may be sold at any time at the
                      market rates. However, unless the put was an integral part
                      of the fixed income security as originally issued, it may
                      not be marketable or assignable. Generally, a premium is
                      paid for a put feature or a put feature is purchased
                      separately which results in a lower yield than would
                      otherwise be available for the same fixed income
                      securities.
 
                        TIME DEPOSITS--Non-negotiable receipts issued by U.S. or
                      foreign banks in exchange for the deposit of funds. Like
                      certificates of deposit, they earn a specified rate of
                      interest over a definite period of time; however, they
                      cannot be traded in the secondary market. Time deposits
                      with a withdrawal penalty are considered to be illiquid
                      securities.
 
                        U.S. GOVERNMENT AGENCY SECURITIES--Certain Federal
                      agencies have been established as instrumentalities of the
                      U.S. Government to supervise and finance certain types of
                      activities. Issues of these agencies, while not direct
                      obligations of the U.S. Government, are either backed by
                      the full faith and credit of the United States (e.g., GNMA
                      securities) or supported by the issuing
 
                                       34
<PAGE>   430
 
                      agencies' right to borrow from the U.S. Treasury. The
                      issues of other agencies are supported only by the credit
                      of the instrumentality (e.g., FNMA securities).
 
                        U.S. TREASURY OBLIGATIONS--Bills, notes, and bonds
                      issued by the U.S. Treasury, as well as separately traded
                      interest and principal component parts of such obligations
                      known as Separately Traded Registered Interest and
                      Principal Securities ("STRIPS") that are transferable
                      through the Federal book-entry system.
 
                        U.S. Government Securities generally do not involve the
                      credit risks associated with investments in other types of
                      fixed-income securities, although, as a result, the yields
                      available from U.S. Government Securities are generally
                      lower than the yields available from otherwise comparable
                      corporate fixed-income securities. Like other fixed-income
                      securities, however, the values of U.S. Government
                      Securities change as interest rates fluctuate.
                      Fluctuations in the value of portfolio securities will in
                      many cases not affect interest income on existing
                      portfolio securities, but will be reflected in the Fund's
                      net asset value. Because the magnitude of these
                      fluctuations will generally be greater at times when a
                      Fund's average maturity is longer, under certain market
                      conditions the Fund may invest in short-term investments
                      yielding lower current income rather than investing in
                      higher yielding longer-term securities.
 
                        VARIABLE AND FLOATING RATE INSTRUMENTS--Obligations that
                      may carry variable or floating rates of interest, may
                      involve conditional or unconditional demand features and
                      may include variable amount master demand notes. The
                      interest rates on these securities may be reset daily,
                      weekly, quarterly or some other reset period, and may have
                      a floor or ceiling on interest rate changes. There is a
                      risk that the current interest rate on such obligations
                      may not accurately reflect existing market interest rates.
                      A demand instrument with a demand notice period exceeding
                      seven days may be considered illiquid if there is no
                      secondary market for such security.
 
                        WARRANTS--Securities that entitle the holder to buy a
                      proportionate amount of common stock at a specified price
                      for a limited or unlimited period of time. Warrants are
                      often freely transferable and are traded on major stock
                      exchanges.
 
                        YANKEE BONDS--Dollar denominated securities issued by
                      foreign-domiciled issuers that obligate the issuer to pay
                      the bondholder a specified sum of money, usually
                      semiannually, and to repay the principal amount of the
                      loan at maturity. Sovereign bonds are bonds issued by the
                      governments of foreign countries. Supranational bonds are
                      those issued by supranational entities, such as the World
                      Bank and European Investment Bank. Canadian bonds are
                      bonds issued by Canadian provinces.
 
                                       35
<PAGE>   431
 
                        ZERO-COUPON OBLIGATIONS--Non-income producing securities
                      evidencing ownership of future interest and principal
                      payments on bonds. These obligations pay no current
                      interest and are typically sold at prices greatly
                      discounted from par value. The return on a zero-coupon
                      obligation, when held to maturity, equals the difference
                      between the par value and the original purchase price.
 
                        For federal income tax purposes, the difference between
                      the par value and the original issue price (original issue
                      discount) is included in the income of a holder of a
                      zero-coupon obligation over the term of the obligation
                      even though the interest is not paid until maturity. The
                      amount included in income is determined under a constant
                      interest rate method. In addition, if an obligation is
                      purchased subsequent to its original issue, a holder such
                      as the Income Funds may elect to include market discount
                      in income currently on a ratable accrual method or a
                      constant interest rate method. Market discount is the
                      difference between the obligation's "adjusted issue price"
                      (the original issue price plus original issue discount
                      accrued to date) and the holder's purchase price. If no
                      such election is made, gain on the disposition of a market
                      discount obligation is treated as ordinary income (rather
                      than capital gain) to the extent it does not exceed the
                      accrued market discount.
 
                        Zero-coupon obligations have greater price volatility
                      than other fixed-income obligations of similar maturity
                      and such obligations will be purchased when the yield
                      spread, in light of the obligation's duration, is
                      considered advantageous.
 
                                       36
<PAGE>   432
 
                          HighMark FIXED INCOME FUNDS
                            INVESTMENT PORTFOLIOS OF
                                 HighMark FUNDS
                   For further information (including current
                  yield, purchase and redemption information),
                              call 1-800-433-6884
 
INVESTMENT ADVISOR
Pacific Alliance Capital Management,
a division of Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
SUB-ADVISOR
Bank of Tokyo-Mitsubishi Trust Company
1251 Avenue of the Americas
New York, New York 10116
 
CUSTODIAN
Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
ADMINISTRATOR & DISTRIBUTOR
SEI Fund Resources and
SEI Financial Services Company
Oaks, Pennsylvania 19456
 
LEGAL COUNSEL
Ropes & Gray
One Franklin Square
1301 K Street, N.W., Suite 800 East
Washington, D.C. 20005
 
AUDITORS
Deloitte & Touche LLP
1700 Courthouse Plaza Northeast
Dayton, OH 45402
 
  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS IN CONNECTION WITH THE OFFERING
MADE BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR
REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY HIGHMARK OR
ITS DISTRIBUTOR. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFERING BY HIGHMARK OR
BY THE DISTRIBUTOR IN ANY JURISDICTION IN WHICH SUCH OFFERING MAY NOT LAWFULLY
BE MADE.
 
NOT FDIC INSURED
<PAGE>   433
                                  EQUITY FUNDS
                       
                                  - Income Equity Fund

                                  - Value Momentum Fund

                                  - Growth Fund
 
                                  - Emerging Growth Fund



                                  Prospectus

                                  Retail Shares 

                                  March 28, 1997










84823-B(3/97)              [LOGO] HIGHMARK(SM)
                                  FUNDS
<PAGE>   434
 
                                 HIGHMARK FUNDS
 
                                  EQUITY FUNDS
 
  HighMark Funds ("HighMark") is an open-end, diversified, registered investment
company that offers a convenient means of investing in one or more
professionally managed portfolios of securities. This Prospectus relates to
HighMark's:
                                   - Income Equity Fund
                                   - Value Momentum Fund
                                   - Growth Fund
                                   - Emerging Growth Fund
 
                                 RETAIL SHARES
 
  HighMark's Retail Shares are offered to investors who are not fiduciary
clients of Union Bank of California, N.A., and who are not otherwise eligible
for HighMark's Fiduciary Shares.
 
  This Prospectus sets forth concisely the information about HighMark and the
Funds that a prospective investor should know before investing. Investors are
advised to read this Prospectus and retain it for future reference. A Statement
of Additional Information dated the same date as this Prospectus has been filed
with the Securities and Exchange Commission and is available without charge by
writing the Distributor, SEI Financial Services Company, Oaks, Pennsylvania
19456, or by calling 1-800-433-6884. The Statement of Additional Information is
incorporated into this Prospectus by reference. This Prospectus relates only to
the Retail Shares of the Equity Funds. Interested persons who wish to obtain a
prospectus for the other Funds of HighMark may contact the Distributor at the
above address and telephone number.
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
HIGHMARK'S SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK, INCLUDING UNION BANK OF CALIFORNIA, N.A., BANK OF
TOKYO-MITSUBISHI, LIMITED OR ANY OF THEIR AFFILIATES OR CORRESPONDENTS.
HIGHMARK'S SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT INSURANCE
CORPORATION OR ANY OTHER GOVERNMENT AGENCY. INVESTMENT IN HIGHMARK INVOLVES
RISKS, INCLUDING POSSIBLE LOSS OF THE PRINCIPAL AMOUNT INVESTED.
 
March 28, 1997
Retail Shares
<PAGE>   435
 
                                    SUMMARY
 
HIGHMARK FUNDS ("HighMark") is an open-end, diversified, registered investment
company providing a convenient way to invest in professionally managed
portfolios of securities. The following provides basic information about the
Retail Shares of the Income Equity, Value Momentum, Growth, and Emerging Growth
Funds (each a "Fund" and sometimes referred to in this prospectus as the "Equity
Funds.") This summary is qualified in its entirety by reference to the more
detailed information provided elsewhere in the Prospectus and in the Statement
of Additional Information.
 
WHAT ARE THE FUNDS' INVESTMENT OBJECTIVES? THE INCOME EQUITY FUND seeks
investments in equity securities that provide current income through the regular
payment of dividends, with the goal that the Fund will have a high current yield
and a low level of price volatility; opportunity for long-term growth of asset
value is a secondary consideration. THE VALUE MOMENTUM FUND seeks long-term
capital growth with a secondary objective of income. THE GROWTH FUND seeks
long-term capital appreciation through investments in equity securities; the
production of current income is an incidental objective. THE EMERGING GROWTH
FUND seeks long-term growth of capital by investing in a diversified portfolio
of equity securities of small capitalization, emerging growth companies. (See
"INVESTMENT OBJECTIVES.")
 
WHAT ARE THE FUNDS' PERMITTED INVESTMENTS? Each of the Funds primarily invests,
consistent with its investment objective, in equity securities including common
stocks and securities convertible into common stocks. Each Fund may also invest
consistent with its investment objective and investment policies in certain
other instruments. (See "INVESTMENT POLICIES.")
 
WHAT ARE THE RISKS INVOLVED WITH AN INVESTMENT IN THE FUNDS? The investment
policies of each Fund entail certain risks and considerations of which an
investor should be aware. Each of the Funds may purchase common stocks and other
equity securities that are volatile and which may fluctuate in value more than
other types of investments. Values of fixed income securities and,
correspondingly, share prices of Funds invested in such securities, tend to vary
inversely with interest rates, and may be affected by other market and economic
factors as well. In addition, the securities of the emerging growth companies in
which the Emerging Growth Fund may invest may be less liquid, and subject to
more abrupt or erratic market movements, than securities of larger, more
established growth companies. (See "Risk Factors.")
 
ARE MY INVESTMENTS INSURED? HighMark's Shares are not federally insured by the
FDIC or any other government agency. Any guarantee by the U.S. Government, its
agencies or any instrumentalities of the securities in which any Fund invests
guarantees only the payment of principal and interest on the guaranteed
security, and does not guarantee the total return or value of the security or
total return or value of Shares of that Fund.
 
WHO IS THE ADVISOR? Pacific Alliance Capital Management, a division of Union
Bank of California, N.A., serves as the Advisor to HighMark. (See "The
Advisor.")
 
WHO IS THE SUB-ADVISOR? Bank of Tokyo-Mitsubishi Trust Company serves as the
Sub-Advisor to the Emerging Growth Fund. (See "The Sub-Advisor.")
 
WHO IS THE ADMINISTRATOR? SEI Fund Resources serves as the Administrator of
HighMark. (See "The Administrator.")
 
                                        2
<PAGE>   436
 
WHO IS THE CUSTODIAN? Union Bank of California, N.A. (the "Bank") serves as the
custodian of HighMark's assets. (See "The Custodian.")
 
WHO IS THE DISTRIBUTOR? SEI Financial Services Company acts as distributor of
HighMark's Shares. (See "The Distributor.")
 
HOW DO I PURCHASE AND REDEEM SHARES? Purchases and redemptions may be made
through the Distributor on days on which both the New York Stock Exchange and
the Federal Reserve wire system are open for business ("Business Days"). The
minimum initial investment is generally $1,000. A purchase order will be
effective if the Distributor receives an order prior to 1:00 p.m., Pacific time
(4:00 p.m., Eastern time). Purchase orders for Shares will be executed at a per
Share price equal to the asset value next determined after the purchase order is
effective (plus any applicable sales charge). Redemption orders must be placed
prior to 1:00 p.m., Pacific time (4:00 p.m., Eastern time) on any Business Day
for the order to be effective that day. (See "HOW TO PURCHASE SHARES" and
"REDEMPTION OF SHARES.")
 
HOW ARE DIVIDENDS PAID? Substantially all of the net investment income
(exclusive of capital gains) of the Funds is distributed in the form of monthly
dividends to Shareholders of record. Any capital gain is distributed at least
annually. Distributions are paid in additional Shares unless the Shareholder
elects to take the payment in cash. (See "DIVIDENDS.")
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
Summary................................................................................   2
Equity Funds Fee Table.................................................................   5
Financial Highlights...................................................................   7
Fund Description.......................................................................  12
Investment Objectives..................................................................  12
Investment Policies....................................................................  12
 Income Equity Fund....................................................................  12
 Value Momentum Fund...................................................................  13
 Growth Fund...........................................................................  13
 Emerging Growth Fund..................................................................  14
General................................................................................  14
 Money Market Instruments..............................................................  14
 Illiquid and Restricted Securities....................................................  15
 Lending of Portfolio Securities.......................................................  15
 Other Investments.....................................................................  15
 Risk Factors..........................................................................  16
Investment Limitations.................................................................  17
 Portfolio Turnover....................................................................  18
How To Purchase Shares.................................................................  18
 How to Purchase By Mail...............................................................  19
 How to Purchase By Wire...............................................................  20
 How to Purchase through an Automatic Investment Plan ("AIP")..........................  20
</TABLE>
 
                                        3
<PAGE>   437
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                         --
<S>                                                                                     <C>
 How to Purchase Through Financial Institutions........................................  20
 Sales Charges.........................................................................  21
 Letter of Intent......................................................................  22
 Rights of Accumulation................................................................  22
 Sales Charge Waivers..................................................................  22
 Reductions for Qualified Groups.......................................................  24
Exchange Privileges....................................................................  24
Redemption of Shares...................................................................  26
 By Mail...............................................................................  26
 Telephone Transactions................................................................  26
 Systematic Withdrawal Plan ("SWP")....................................................  27
 Other Information Regarding Redemptions...............................................  27
Dividends..............................................................................  28
Federal Taxation.......................................................................  28
Service Arrangements...................................................................  29
 The Advisor...........................................................................  29
 Sub-Advisor...........................................................................  31
 Administrator.........................................................................  32
 The Transfer Agent....................................................................  32
 Shareholder Service Plan..............................................................  32
 Distributor...........................................................................  33
 The Distribution Plan.................................................................  33
 Banking Laws..........................................................................  34
 Custodian.............................................................................  34
General Information....................................................................  35
 Description of HighMark & Its Shares..................................................  35
 Performance Information...............................................................  35
 Miscellaneous.........................................................................  36
Description of Permitted Investments...................................................  37
</TABLE>
 
                                        4
<PAGE>   438
 
                             EQUITY FUNDS FEE TABLE
 
<TABLE>
<CAPTION>
                                                                                                                     
                                                                                                                     
                                                                                                                     
                                                                              INCOME    VALUE              EMERGING  
                                                                              EQUITY   MOMENTUM   GROWTH    GROWTH   
                                                                               FUND      FUND      FUND      FUND    
                                                                              RETAIL    RETAIL    RETAIL    RETAIL   
                                                                              SHARES    SHARES    SHARES    SHARES   
                                                                              ------   --------   ------   --------  
<S>                                                                           <C>      <C>        <C>      <C>
SHAREHOLDER TRANSACTION EXPENSES(A)
 Maximum Sales Load Imposed on Purchases (as a percentage of offering
  price).....................................................................  4.50%     4.50%     4.50%     4.50%
 Maximum Sales Load Imposed on Reinvested Dividends (as a percentage of
  offering price)............................................................     0%        0%        0%        0%
 Deferred Sales Load (as a percentage of original purchase price or
  redemption proceeds, as applicable)(b).....................................     0%        0%        0%        0%
 Redemption Fees (as a percentage of amount redeemed, if applicable)(c)......     0%        0%        0%        0%
 Exchange Fee(a).............................................................  $  0      $  0      $  0      $  0
ANNUAL OPERATING EXPENSES (as a percentage of net assets)
 Management Fees.............................................................  0.60%     0.60%     0.60%     0.80%
 12b-1 Fees..................................................................  0.25%     0.25%     0.25%     0.25%
 Other Expenses (after voluntary reduction)(d)...............................  0.31%     0.21%     0.30%     0.23%
                                                                              -----    ---- -     ---- -   ---- -
 Total Fund Operating Expenses(e)............................................  1.16%     1.06%     1.15%     1.28%
                                                                              =====     =====     =====     =====
</TABLE>
 
  EXAMPLE: You would pay the following expenses on a $1,000 investment, assuming
(1) 5% annual return and (2) redemption at the end of each time period.
 
<TABLE>
<CAPTION>
                                                                 1 YEAR   3 YEARS   5 YEARS   10 YEARS
                                                                 ------   -------   -------   --------
<S>                                                              <C>      <C>       <C>       <C>
 Income Equity Fund Retail Shares...............................  $ 56      $80      $ 106      $180
 Value Momentum Fund Retail Shares..............................  $ 55      $77      $ 101      $169
 Growth Fund Retail Shares......................................  $ 56      $80      $ 105      $178
 Emerging Growth Fund Retail Shares.............................  $ 57      $84      $ 112      $193
</TABLE>
 
  The purpose of the tables above is to assist an investor in the Equity Funds
in understanding the various costs and expenses that a Shareholder will bear
directly or indirectly. For a more complete discussion of each Fund's annual
operating expenses, see SERVICE ARRANGEMENTS below. THE FOREGOING EXAMPLE SHOULD
NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE EXPENSES. ACTUAL EXPENSES
MAY BE GREATER OR LESS THAN THOSE SHOWN.
 
  Long-term shareholders of Retail Shares may pay more than the economic
equivalent of the maximum front-end sales charges otherwise permitted by rules
of the National Association of Securities Dealers, Inc.
- ---------------
(a) Certain entities (including Union Bank of California and its affiliates)
    making investments in the Equity Funds on behalf of their customers may
    charge customers fees for services provided in connection with the
    investment in, redemption of, and exchange of Shares. (See HOW TO PURCHASE
    SHARES, EXCHANGE PRIVILEGES, REDEMPTION OF SHARES, and SERVICE ARRANGEMENTS
    below.)
 
(b) A Contingent Deferred Sales Charge of 1.00% will be assessed against the
    proceeds of any redemption request relating to Retail Shares of the Funds
    that were purchased without a sales charge in reliance upon
 
                                        5
<PAGE>   439
 
    the waiver accorded to purchases in the amount of $1 million or more, but
    only where such redemption request is made within one year of the date the
    Shares were purchased.
 
(c) A wire redemption charge is deducted from the amount of a wire redemption
    payment made at the request of a Shareholder. (See REDEMPTION OF SHARES
    below.)
 
(d) OTHER EXPENSES for the Value Momentum and Emerging Growth Funds are based on
    each Fund's estimated expenses for the current fiscal year. Absent voluntary
    fee waivers, OTHER EXPENSES would be: 0.48% for the Retail Shares of the
    Income Equity Fund, the Value Momentum Fund, and the Growth Fund, and 0.50%
    for the Retail Shares of the Emerging Growth Fund.
 
(e) Absent voluntary fee waivers, TOTAL FUND OPERATING EXPENSES would be: 1.33%
    for the Retail Shares of the Income Equity Fund, the Value Momentum Fund,
    and the Growth Fund, and 1.55% for the Retail Shares of the Emerging Growth
    Fund.
 
                                        6
<PAGE>   440
 
                              FINANCIAL HIGHLIGHTS
 
  The tables below set forth certain financial information with respect to the
Retail Shares of the Income Equity Fund and the Growth Fund. Financial
highlights for the Income Equity Fund and the Growth Fund for the period ended
July 31, 1996 have been derived from financial statements audited by Deloitte &
Touche LLP, independent auditors for HighMark, whose report thereon is included
in the Statement of Additional Information. Prior to the fiscal year ended July
31, 1996, Coopers & Lybrand L.L.P. served as independent accountants for
HighMark. Financial highlights for the Income Equity Fund for the periods
indicated have been derived from financial statements audited by Coopers &
Lybrand L.L.P. Financial highlights for the Income Equity Fund for the years
ended December 31, 1987, 1986, 1985, and for the period ended December 31, 1984
have been derived from financial statements examined by other auditors whose
report thereon is on file with the Securities and Exchange Commission. Financial
highlights for the Income Equity Fund for the period from January 1, 1988
through June 22, 1988 are derived from unaudited financial statements prepared
by HighMark.
 
  The Value Momentum Fund and the Emerging Growth Fund had not commenced
operations in HighMark as of July 31, 1996.
 
  Prior to June 20, 1994, the Income Equity Fund and the Growth Fund offered a
single class of Shares (now designated Fiduciary Shares) throughout the periods
shown.
 
                                        7
<PAGE>   441
 
                               INCOME EQUITY FUND
 
<TABLE>
<CAPTION>
                                       YEAR ENDED JULY 31,   JUNE 20,
                                       -------------------   1994 TO
                                                             JULY 31,
                                        1996       1995     1994(A)(B)         YEAR ENDED JULY 31,
                                       -------    ------   -------------   ----------------------------
                                       RETAIL     RETAIL      RETAIL         1993      1992      1991
                                       -------    ------   -------------   --------   -------   -------
<S>                                    <C>        <C>      <C>             <C>        <C>       <C>
Net Asset Value, Beginning of
  Period.............................. $ 13.03    $11.92      $ 11.85      $  11.42   $ 10.22   $ 10.46
                                       -------    ------   -------------   --------   -------   -------
Investment Activities
  Net investment income...............    0.42      0.42         0.04          0.38      0.40      0.46
  Net realized and unrealized gains
     (losses) on investments..........    1.92      1.55         0.08          0.71      1.20      0.61
                                       -------    ------   -------------   --------   -------   -------
Total from investment Activities......    2.34      1.97         0.12          1.09      1.60      1.07
                                       -------    ------   -------------   --------   -------   -------
Distributions
  Net investment income...............   (0.42)    (0.44)       (0.05)        (0.38)    (0.40)    (0.46)
  Net realized gains..................   (0.66)    (0.42)          --            --        --     (0.85)
                                       -------    ------   -------------   --------   -------   -------
Total Distributions...................   (1.08)    (0.86)       (0.05)        (0.38)    (0.40)    (1.31)
                                       -------    ------   -------------   --------   -------   -------
Net Asset Value, End of Period........ $ 14.29    $13.03      $ 11.92      $  12.13   $ 11.42   $ 10.22
                                       =======    ======   ============    ========   =======   =======
Total Return..........................   18.21%    17.52%        4.23%(c)      9.75%    16.04%    12.60%
Ratios/Supplementary Data:
  Net Assets at end of period (000)... $10,143    $3,881      $    24      $104,840   $74,478   $49,047
  Ratio of expenses to average net
     assets...........................    1.03%     1.06%        1.10%(d)      1.15%     1.16%     1.17%
  Ratio of net investment income to
     average net assets...............    2.89%     3.06%        0.93%(d)      3.27%     3.76%     4.81%
  Ratio of expenses to average net
     assets*..........................    1.51%     1.55%        1.33%(d)      1.21%     1.29%     1.40%
  Ratio of net investment income to
     average net assets*..............    2.41%     2.57%        0.71%(d)      3.22%     3.64%     4.58%
Portfolio turnover....................   41.51%    36.64%       33.82%        29.58%    23.05%    33.10%
</TABLE>
 
                                        8
<PAGE>   442
 
<TABLE>
<CAPTION>
                                                                                       JUNE 23,
                                                                 YEAR ENDED JULY 31,   1988 TO
                                                                 ------------------    JULY 31,
                                                                  1990       1989      1988(E)
                                                                 -------    -------    --------
<S>                                                              <C>        <C>        <C>
Net Asset Value, Beginning of Period..........................   $ 12.12    $ 10.00    $ 10.00
                                                                 -------    -------    --------
Investment Activities
  Net investment income.......................................      0.54       0.49       0.03
  Net realized and unrealized gains (losses) on investments...     (0.62)      2.22         --
                                                                 -------    -------    --------
Total from investment Activities..............................     (0.08)      2.71       0.03
                                                                 -------    -------    --------
Distributions
  Net investment income.......................................     (0.54)     (0.49)     (0.03) 
  Net realized gains..........................................     (1.04)     (0.10)        --
                                                                 -------    -------    --------
Total Distributions...........................................     (1.58)     (0.59)     (0.03) 
                                                                 -------    -------    --------
Net Asset Value, End of Period................................   $ 10.46    $ 12.12    $ 10.00
                                                                 =======    =======    ========
Total Return..................................................     (0.84)%    28.16%      1.31%(f)
Ratios/Supplementary Data:
  Net Assets at end of period (000)...........................   $41,280    $40,027    $30,495
  Ratio of expenses to average net assets.....................      1.15%      1.19%      0.99%(d)
  Ratio of net investment income to average net assets........      4.82%      4.61%      2.56%(d)
  Ratio of expenses to average net assets*....................      1.41%      1.41%      1.41%(d)
  Ratio of net investment income to average net assets*.......      4.56%      4.39%      2.14%(d)
Portfolio turnover............................................     37.11%     28.83%      3.12%
</TABLE>
 
- ---------------
(a) Period from commencement of operations.
(b) On June 20, 1994, the Income Equity Fund commenced offering Investor Shares
    (now called "Retail Shares") and designated existing Shares as Fiduciary
    Shares.
(c) Represents total return for the Fiduciary Shares for the period from August
    1, 1993 to June 19, 1994 plus the total return for the Retail Shares for the
    period from June 20, 1994 to July 31, 1994.
(d) Annualized.
(e) The Income Equity Fund commenced operations on June 23, 1988 as a result of
    the reorganization involving the Income Equity Portfolio of the IRA
    collective Investment Fund described under GENERAL
    INFORMATION--Reorganization of The IRA Fund & HighMark.
(f) Not annualized.
 
 *  During the period the investment advisory and administration fees were
    voluntarily reduced. If such voluntary fee reductions had not occurred, the
    ratios would have been as indicated.
 
                                        9
<PAGE>   443
 
                      PER SHARE INCOME AND CAPITAL CHANGES
                (FOR A SHARE OUTSTANDING THROUGHOUT THE PERIODS)
 
           THE IRA COLLECTIVE INVESTMENT FUND INCOME EQUITY PORTFOLIO
 
<TABLE>
<CAPTION>
                                                         PERIOD FROM
                                                           JAN. 1,
                                                            1988
                                                           THROUGH          YEAR ENDED DEC. 31,
                                                          JUNE 22,       -------------------------
                                                         1988(a)(b)       1987(a)        1986(a)
                                                         (UNAUDITED)     (AUDITED)      (AUDITED)
                                                         -----------     ----------     ----------
<S>                                                      <C>             <C>            <C>
Investment income......................................  $     0.440     $    0.927     $    0.944
Operating expenses.....................................        0.102          0.185(d)       0.154(d)
Net investment income..................................        0.338          0.742          0.790
Dividends from net investment income...................       (0.338)        (0.742)        (0.790)
Net realized and unrealized gain (loss) on
  investments..........................................        1.884         (0.564)         1.934
                                                          ----------     ----------     ----------
Increase (decrease) in net asset value.................        1.884         (0.564)         1.934
Net Asset Value:
  Beginning of period..................................       14.059         14.623         12.689
                                                          ----------     ----------     ----------
  End of period........................................  $    15.943     $   14.059     $   14.623
                                                          ==========     ==========     ==========
Ratio of expenses to average net assets(c)(d)..........         1.41%          1.12%          0.97%
Ratio of net investment income to average net
  assets(c)............................................         5.45%          4.50%          4.96%
Portfolio turnover.....................................         5.83%         20.88%         12.07%
Number of Shares/units outstanding at end of period....    1,940,573      1,978,920      1,416,327
</TABLE>
 
- ---------------
(a) The per share amount is calculated using weighted-average Shares
    outstanding.
(b) The Income Equity Fund commenced operations on June 23, 1988 as a result of
    the reorganization involving the Income Equity Portfolio of the IRA
    Collective Investment Fund.
(c) Annualized based on the period for which assets were held.
(d) The expenses shown are not representative of expenses actually incurred by
    the Income Equity Portfolio through May 31, 1987. During mid-May 1985, The
    Bank of California, N.A., investment adviser to the Income Equity Portfolio,
    commenced charging its management fee, and commencing June 1, 1987,
    operating expenses were charged to the Income Equity Portfolio. Had the
    maximum allowable operating expenses and management fees been paid by the
    Income Equity Portfolio for the entire period pursuant to the Management
    Agreement between the Income Equity Portfolio and The Bank of California,
    N.A., the per unit expenses and net investment income would have been as
    follows:
 
<TABLE>
<CAPTION>
                                                              PERIOD FROM
                                                                JAN. 1,
                                                                 1988
                                                                THROUGH       YEAR ENDED DEC. 31,
                                                               JUNE 22,       -------------------
                                                                 1988          1987        1986
                                                              (UNAUDITED)     (AUDITED)   (AUDITED)
                                                              -----------     -------     -------
<S>                                                           <C>             <C>         <C>
Expenses....................................................    $ 0.257       $ 0.260     $ 0.248
Net investment income.......................................      0.183         0.612       0.557
Net asset value, end of year................................     15.943        14.059      14.623
Expenses as a percentage of average net assets..............       2.00%(c)      1.67%       2.00%
</TABLE>
 
                                       10
<PAGE>   444
 
                                  GROWTH FUND
 
<TABLE>
<CAPTION>
                                                                                 
                                                                                 
                                                             YEAR ENDED JULY 31,
                                                             -------------------   JUNE 20, 1994 TO
                                                              1996       1995      JULY 31, 1994(A)
                                                             ------     ------     ----------------
                                                             RETAIL     RETAIL          RETAIL
                                                             ------     ------     ----------------
<S>                                                          <C>        <C>        <C>
Net Asset Value, Beginning of Period.......................  $11.87     $ 9.77          $ 9.74
                                                             ------     ------          ------
Investment Activities
Net investment income......................................    0.11       0.15              --
Net realized and unrealized gains (losses) on
  investments..............................................    1.38       2.25            0.04
                                                             ------     ------          ------
          Total from Investment Activities.................    1.49       2.40            0.04
                                                             ------     ------          ------
Distributions
Net investment income......................................   (0.12)     (0.15)          (0.01)
Net realized gains.........................................   (0.64)     (0.15)             --
                                                             ------     ------          ------
          Total Distributions..............................   (0.76)     (0.30)          (0.01)
                                                             ------     ------          ------
Net Asset Value, End of Period.............................  $12.60     $11.87          $ 9.77
                                                             ======     ======          ======
Total Return...............................................   12.88%     25.10%          (1.77)%(b)
Ratios/Supplementary Data:
  Net Assets at end of period (000)........................  $2,843     $1,218              --
  Ratio of expenses to average net assets..................    0.93%      0.84%             --
  Ratio of net investment income to average net assets.....    0.96%      1.17%             --
  Ratio of expenses to average net assets*.................    1.91%      2.11%             --
  Ratio of net investment (loss) to average net assets*....   (0.02)%    (0.10)%            --
Portfolio turnover.........................................   78.58%     67.91%         123.26%
</TABLE>
 
- ---------------
(a) Period from commencement of operations.
(b) Represents total return for the Fiduciary Shares from commencement of
    operations to June 19, 1994, plus the total return for the Investor Shares
    (now called "Retail Shares") for the period from June 20, 1994 to July 31,
    1994.
 
*   During the period, certain fees were voluntarily reduced. In addition,
    certain expenses were reimbursed. If such voluntary fee reductions and
    expense reimbursements had not occurred, the ratios would have been as
    indicated.
 
                                       11
<PAGE>   445
 
FUND
DESCRIPTION             HighMark Funds ("HighMark") is an open-end, diversified,
                      registered investment company that currently offers units
                      of beneficial interest ("Shares") in sixteen separate
                      investment portfolios ("Funds"). All of the Funds are
                      advised by Pacific Alliance Capital Management (the
                      "Advisor"), a division of Union Bank of California, N.A.
                      Shareholders may purchase Shares of selected Funds through
                      two separate classes (the "Retail" and "Fiduciary"
                      classes). These classes may have different sales charges
                      and other expenses, which may affect performance.
                      Information regarding HighMark's other Funds and other
                      classes is contained in separate prospectuses that may be
                      obtained from HighMark's Distributor, SEI Financial
                      Services Company, at Oaks, Pennsylvania 19456, or by
                      calling 1-800-433-6884.
 
                        For information concerning those investors who qualify
                      to purchase Retail Shares, sales charges and the operation
                      of HighMark's Distribution Plan, see HOW TO PURCHASE
                      SHARES and SERVICE ARRANGEMENTS--Administrator &
                      Distributor--The Distribution Plan below. (Retail Shares
                      may be hereinafter referred to as "Shares.")
 
INVESTMENT
OBJECTIVES              The investment objectives of the Funds are as follows:
 
                        The Income Equity Fund seeks investments in equity
                      securities that provide current income through the regular
                      payment of dividends, with the goal that the Income Equity
                      Fund will have a high current yield and a low level of
                      price volatility. Opportunity for long-term growth of
                      asset value is a secondary consideration.
 
                        The Value Momentum Fund seeks long-term capital growth
                      with a secondary objective of income.
 
                        The Growth Fund seeks long-term capital appreciation
                      through investments in equity securities. The production
                      of current income is an incidental objective.
 
                        The Emerging Growth Fund seeks long-term growth of
                      capital by investing in a diversified portfolio of equity
                      securities of small capitalization, emerging growth
                      companies.
 
                        The investment objectives and certain of the investment
                      limitations of the Funds may not be changed without a vote
                      of the holders of a majority of the outstanding Shares of
                      the respective Fund (as defined under GENERAL
                      INFORMATION--Miscellaneous below). There can be no
                      assurance that a Fund will achieve its investment
                      objective.
 
INVESTMENT
POLICIES              Income Equity Fund
 
                        Under normal market conditions, the Income Equity Fund
                      will invest at least 65% of its total assets in equity
                      securities, including common stocks, warrants to
 
                                       12
<PAGE>   446
 
                      purchase common stocks, American Depositary Receipts
                      ("ADRs"), preferred stocks and securities (including debt
                      securities) convertible into or exercisable for common
                      stocks. The Income Equity Fund's investments primarily
                      consist of the common stocks of U.S. corporations that
                      regularly pay dividends, although there can be no
                      assurance that a corporation will continue to pay
                      dividends. Investments will be made in an attempt to keep
                      the Income Equity Fund's yield above the S&P 500's yield
                      by approximately one-third to one-half the difference
                      between the S&P 500's yield and the yield on long-term
                      U.S. Government bonds.
 
                        The Income Equity Fund generally invests in stocks with
                      favorable, long-term fundamental characteristics when
                      their current relative yields are at the upper end of
                      their historical yield ranges. Frequently, these stocks
                      are out of favor in the financial community and in which
                      investors see little opportunity for price appreciation.
                      The Fund may also invest in major U.S. corporations in a
                      mature stage of development or operating in slower areas
                      of the economy. While it is anticipated that a significant
                      part of the total growth in asset value experienced by the
                      Income Equity Fund will result from companies' improving
                      prospects (although there can be no assurance that this
                      will in fact occur), dividends will provide a substantial
                      portion of the Fund's total return. When yields on stocks
                      held by the Income Equity Fund drop to the lower end of
                      their historical ranges, the Fund may begin to reduce its
                      holdings. Similarly, if there is a significant fundamental
                      change that impairs a company's ability to pay dividends,
                      or if the yield on a stock dips below the yield of the
                      general market, the Income Equity Fund may eliminate its
                      holdings in these stocks.
 
                      Value Momentum Fund
 
                        Under normal market conditions, the Value Momentum Fund
                      will invest at least 65% of its total assets in equity
                      securities, including common stocks, warrants to purchase
                      common stocks, ADRs, preferred stocks and securities
                      (including debt securities) convertible into or
                      exercisable for common stocks. The Value Momentum Fund
                      will be invested primarily in securities which the Advisor
                      believes to be undervalued relative to the market and to
                      the security's historic valuation. Stocks are then
                      screened for positive price or earnings momentum.
                      Securities purchased will generally have a medium to high
                      market capitalization. A majority of the securities in
                      which the Value Momentum Fund invests will be dividend
                      paying.
 
                      Growth Fund
 
                        Under normal market conditions, the Growth Fund will
                      invest at least 65% of its total assets in equity
                      securities, including common stocks, warrants to purchase
                      common stocks, ADRs, preferred stocks and securities
                      (including debt securities) convertible into or
                      exercisable for common stocks, of growth-oriented
 
                                       13
<PAGE>   447
 
                      companies. The Growth Fund emphasizes a well diversified
                      portfolio of medium to large capitalization growth
                      companies (capitalization in excess of $500 million) with
                      a record of above average growth in earnings. The Fund
                      focuses on companies that the Advisor believes to have
                      enduring quality and above average earnings growth. Among
                      the criteria the Fund uses to screen for stock selection
                      are earnings growth, return on capital, brand identity,
                      recurring revenues, price and quality of management team.
 
                      Emerging Growth Fund
 
                        Under normal market conditions, the Emerging Growth Fund
                      will invest at least 65% of its total assets in equity
                      securities, including common stocks, warrants to purchase
                      common stocks, ADRs, preferred stocks and securities
                      (including debt securities) convertible into or
                      exercisable for common stocks of small and medium
                      capitalization companies. Small and medium capitalization
                      companies are those with capitalization between $50
                      million and $1 billion and the potential for growth or
                      those which, in the Advisor's opinion, have potential for
                      above-average long-term capital appreciation. An emerging
                      growth company is one which, in the Advisor's judgment, is
                      in the developing stages of its life cycle and has
                      demonstrated or is expected to achieve rapid growth in
                      earnings and/or revenues. Emerging growth companies are
                      characterized by opportunities for rapid growth rates
                      and/or dynamic business changes. Emerging growth
                      companies, regardless of size, tend to offer the potential
                      for accelerated earnings or revenue growth because of new
                      products or technologies, new channels of distribution,
                      revitalized management or industry conditions, or similar
                      opportunities. A company may or may not yet be profitable
                      at the time the Emerging Growth Fund invests in its
                      securities. Current income will not be a criterion of
                      investment selection, and any such income should be
                      considered incidental. Many of the securities in which the
                      Fund invests will not pay dividends.
 
                        The Emerging Growth Fund may also invest in equity
                      securities of companies in "special equity situations,"
                      meaning companies experiencing unusual and possibly
                      non-repetitive developments, such as mergers;
                      acquisitions; spin-offs; liquidations; reorganizations;
                      and new products, technology or management. Since a
                      special equity situation may involve a significant change
                      from a company's past experiences, the uncertainties in
                      the appraisal of the future value of the company's equity
                      securities and the risk of a possible decline in the value
                      of the Emerging Growth Fund's investments are significant.
 
GENERAL               Money Market Instruments
 
                        Under normal market conditions, each Equity Fund may
                      invest up to 35% of its total assets in money market
                      instruments. When market conditions indicate a temporary
                      "defensive" investment strategy as determined by the
                      Advisor, a Fund
 
                                       14
<PAGE>   448
 
                      may invest more than 35% of its total assets in money
                      market instruments. A Fund will not be pursuing its
                      investment objective to the extent that a substantial
                      portion of its assets are invested in money market
                      instruments.
 
                      Illiquid and Restricted Securities
 
                        Each Fund shall limit investment in illiquid securities
                      to 15% or less of its net assets. Generally, an "illiquid
                      security" is any security that cannot be disposed of
                      promptly and in the ordinary course of business at
                      approximately the amount at which the Fund has valued the
                      instrument. The absence of a trading market can make it
                      difficult to ascertain the market value of illiquid
                      securities. Each Fund may purchase restricted securities
                      which have not been registered under the Securities Act of
                      1933 (e.g., Rule 144A Securities and Section 4(2)
                      commercial paper) subject to policies approved by the
                      Board of Trustees. See INVESTMENT RESTRICTIONS in the
                      Statement of Additional Information.
 
                      Lending of Portfolio Securities
 
                        In order to generate additional income, a Fund may lend
                      its portfolio securities to broker-dealers, banks or other
                      institutions. A Fund may lend portfolio securities in an
                      amount representing up to 33 1/3% of the value of the
                      Fund's total assets.
 
                      Other Investments
 
                        The Funds may enter into repurchase agreements and
                      reverse repurchase agreements.
 
                        The Equity Funds may enter into forward commitments or
                      purchase securities on a "when-issued" basis. Each Equity
                      Fund expects that commitments by a Fund to enter into
                      forward commitments or purchase when-issued securities
                      will not exceed 25% of the value of the Fund's total
                      assets under normal market conditions. The Equity Funds do
                      not intend to purchase when-issued securities or forward
                      commitments for speculative or leveraging purposes but
                      only for the purpose of acquiring portfolio securities.
 
                        The Funds may also invest in money market instruments,
                      money market funds, and in cash, and may invest in other
                      registered investment companies with similar investment
                      objectives.
 
                        A Fund may invest up to 5% of its total assets in the
                      shares of any one registered investment company, but may
                      not own more than 3% of the securities of any one
                      registered investment company or invest more than 10% of
                      its assets in the securities of other registered
                      investment companies. In accordance with an exemptive
                      order issued to HighMark by the SEC, such other registered
                      investment company securities may include shares of a
                      money market fund of HighMark, and may include registered
                      investment companies for which the
 
                                       15
<PAGE>   449
 
                      Advisor or Sub-Advisor to a Fund of HighMark, or an
                      affiliate of such Advisor or Sub-Advisor, serves as
                      investment advisor, administrator or distributor. Because
                      other registered investment companies employ an investment
                      advisor, such investment by a Fund may cause Shareholders
                      to bear duplicative fees. The Advisor will waive its fees
                      attributable to the assets of the investing Fund invested
                      in a money market fund of HighMark, and, to the extent
                      required by applicable law, the Advisor will waive its
                      fees attributable to the assets of the Fund invested in
                      any investment company. Some Funds are subject to
                      additional restrictions on investment in other investment
                      companies. See INVESTMENT RESTRICTIONS in the Statement of
                      Additional Information.
 
                        Each Fund may write covered calls on its equity
                      securities and enter into closing transactions with
                      respect to covered call options.
 
                        A Fund's assets may be invested in options, futures
                      contracts and options on futures, Standard & Poor's
                      Depositary Receipts ("SPDRs"), and investment grade bonds.
                      The aggregate value of options on securities (long puts
                      and calls) will not exceed 10% of a Fund's net assets at
                      the time such options are purchased by the Fund.
 
                        A Fund may enter into futures and options on futures
                      only to the extent that obligations under such contracts
                      or transactions, together with options on securities,
                      represent not more than 25% of the Fund's assets.
 
                        Each Fund may purchase options in stock indices to
                      invest cash on an interim basis. The aggregate premium
                      paid on all options on stock indices cannot exceed 20% of
                      the Fund's total assets.
 
                        All of the common stocks in which the Funds invest
                      (including foreign securities in the form of ADRs but not
                      including Rule 144A Securities) are traded on registered
                      exchanges or in the over-the-counter market.
 
                        For further information, see "DESCRIPTION OF PERMITTED
                      INVESTMENTS."
 
                      Risk Factors
 
                        Since the Equity Funds invest in equity securities, each
                      Fund's Shares will fluctuate in value, and thus may be
                      more suitable for long-term investors who can bear the
                      risk of short-term fluctuations. In addition, the market
                      value of the fixed-income securities bears an inverse
                      relationship to changes in market interest rates, which
                      may affect the net asset value of Shares. The longer the
                      remaining maturity of a security, the greater is the
                      effect of interest rate changes on its market value.
                      Changes in the value of a Fund's fixed-income securities
                      will not affect cash income received from ownership of
                      such securities, but will affect a Fund's net asset value.
 
                                       16
<PAGE>   450
 
                        An Equity Fund may invest in convertible securities,
                      which include corporate bonds, notes or preferred stocks
                      that can be converted into common stocks or other equity
                      securities. Convertible securities also include other
                      securities, such as warrants, that provide an opportunity
                      for equity participation. Because convertible securities
                      can be converted into common stock, their values will
                      normally vary in some proportion with those of the
                      underlying common stock. Convertible securities usually
                      provide a higher yield than the underlying common stock,
                      however, so that the price decline of a convertible
                      security may sometimes be less substantial than that of
                      the underlying common stock. The value of convertible
                      securities that pay dividends or interest, like the value
                      of all fixed-income securities, generally fluctuates
                      inversely with changes in interest rates. Warrants have no
                      voting rights, pay no dividends and have no rights with
                      respect to the assets of the corporation issuing them.
                      They do not represent ownership of the securities for
                      which they are exercisable, but only the right to buy such
                      securities at a particular price. The Equity Funds will
                      not purchase any convertible debt security or convertible
                      preferred stock unless it has been rated as investment
                      grade at the time of acquisition by a NRSRO or that is not
                      rated but is determined to be of comparable quality by the
                      Advisor.
 
                        Given the uncertainty of the future value of emerging
                      growth companies and companies in special equity
                      situations, the risk of possible decline in value of the
                      Emerging Growth Fund's net assets are significant.
                      Companies in which the Emerging Growth Fund invests may
                      offer greater opportunities for capital appreciation than
                      larger more established companies, but investment in such
                      companies may involve certain special risks. These risks
                      may be due to the greater business risks of small size,
                      limited markets and financial resources, narrow product
                      lines and frequent lack of depth in management. The
                      securities of such companies are often traded in the
                      over-the-counter market and may not be traded in volumes
                      typical on a national securities exchange. Thus, the
                      securities of emerging growth companies may be less
                      liquid, and subject to more abrupt or erratic market
                      movements than securities of larger, more established
                      growth companies. Since a "special equity situation" may
                      involve a significant change from a company's past
                      experiences, the uncertainties in the appraisal of the
                      future value of the company's equity securities and the
                      risk of a possible decline in the value of the Fund's
                      investments are significant.
 
INVESTMENT
LIMITATIONS             Each Fund may not:
 
                         (1) Purchase securities of any one issuer, other than
                      obligations issued or guaranteed by the U.S. Government,
                      its agencies, or instrumentalities, if, immediately after
                      the purchase, more than 5% of the value of such Fund's
                      total assets would be invested in the issuer or the Fund
                      would hold more than 10% of any class of securities of the
                      issuer or more than 10% of the issuer's outstanding voting
 
                                       17
<PAGE>   451
 
                      securities (except that up to 25% of the value of the
                      Fund's total assets may be invested without regard to
                      these limitations).
 
                         (2) Purchase any securities that would cause more than
                      25% of such Fund's total assets at the time of purchase to
                      be invested in securities of one or more issuers
                      conducting their principal business activities in the same
                      industry, provided that (a) there is no limitation with
                      respect to obligations issued or guaranteed by the U.S. or
                      foreign governments or their agencies or instrumentalities
                      and repurchase agreements secured by obligations of the
                      U.S. Government or its agencies or instrumentalities; (b)
                      wholly owned finance companies will be considered to be in
                      the industries of their parents if their activities are
                      primarily related to financing the activities of their
                      parents; and (c) utilities will be divided according to
                      their services (for example, gas, gas transmission,
                      electric and gas, electric, and telephone will each be
                      considered a separate industry);
 
                         (3) Make loans, except that a Fund may purchase or hold
                      debt instruments, lend portfolio securities, and enter
                      into repurchase agreements in accordance with its
                      investment objective and policies.
 
                        The foregoing percentages will apply at the time of the
                      purchase of a security. The investment limitations listed
                      above are fundamental policies the substance of which may
                      not be changed without a vote of a majority of the
                      outstanding Shares of the respective Fund. Additional
                      fundamental and non-fundamental investment limitations are
                      set forth in the Statement of Additional Information.
 
                      Portfolio Turnover
 
                        A Fund's portfolio turnover rate will not be a factor
                      preventing a sale or purchase when the Advisor believes
                      investment considerations warrant. Each of the Equity
                      Funds' portfolio turnover rate may vary greatly from year
                      to year as well as within a particular year. High
                      portfolio turnover rates generally will result in
                      correspondingly higher brokerage and other transactions
                      costs to the Equity Funds and could involve the
                      realization of capital gains that would be taxable when
                      distributed to Shareholders of the relevant Equity Fund.
                      See FEDERAL TAXATION.
 
HOW TO
PURCHASE SHARES         As noted above, each Fund is divided into two classes of
                      Shares, Retail and Fiduciary. Retail Shares may be
                      purchased at net asset value plus a sales charge. For a
                      description of investors who qualify to purchase Fiduciary
                      Shares, see the Fiduciary Shares prospectus of the Equity
                      Funds. HighMark's Retail Shares are offered to investors
                      who are not fiduciary clients of Union Bank of California,
                      N.A., and who are not otherwise eligible for HighMark's
                      Fiduciary Shares.
 
                        Retail Shares are sold on a continuous basis by
                      HighMark's Distributor, SEI Financial Services Company.
                      The principal office of the Distributor is Oaks,
 
                                       18
<PAGE>   452
 
                      Pennsylvania 19456. If you wish to purchase Shares, you
                      may contact your investment professional or telephone
                      HighMark at 1-800-433-6884.
 
                        The minimum initial investment is generally $1,000 for
                      each Fund and the minimum subsequent investment is
                      generally only $100. For present and retired directors,
                      officers, and employees (and their spouses and children
                      under the age of 21) of Union Bank of California, SEI
                      Financial Services Company and their affiliates, the
                      minimum initial investment is $250 and the minimum
                      subsequent investment is $50. A Fund's initial and
                      subsequent minimum purchase amounts may be waived if
                      purchases are made in connection with Individual
                      Retirement Accounts, Keoghs, payroll deduction plans, or
                      401(k) or similar plans. Purchases and redemption of
                      Shares of the Funds may be made on days on which both the
                      New York Stock Exchange and the Federal Reserve wire
                      system are open for business ("Business Days").
 
                        Purchase orders for Shares will be executed at a per
                      Share price equal to the net asset value next determined
                      after the receipt of the purchase order by the Distributor
                      (plus any applicable sales charge). The net asset value
                      per Share of a Fund is determined by dividing the total
                      market value of the Fund's investments and other assets,
                      less any liabilities, by the total number of outstanding
                      Shares of the Fund. Net asset value per Share is
                      determined daily as of 1:00 p.m., Pacific time (4:00 p.m.
                      Eastern time), on any Business Day. Purchases will be made
                      in full and fractional Shares of HighMark calculated to
                      three decimal places. HighMark reserves the right to
                      reject a purchase order when the Distributor determines
                      that it is not in the best interest of HighMark and/or its
                      Shareholders to accept such order.
 
                        The securities in each Fund will be valued at market
                      value. If market quotations are not available, the
                      securities will be valued by a method that HighMark's
                      Board of Trustees believes accurately reflects fair value.
                      For further information about valuation of investments in
                      the Equity Funds, see the Statement of Additional
                      Information.
 
                        Shares of the Funds are offered only to residents of
                      states in which the Shares are eligible for purchase.
 
                      How to Purchase By Mail
 
                        You may purchase Shares of the Funds by completing and
                      signing an Account Application form and mailing it, along
                      with a check (or other negotiable bank instrument or money
                      order) payable to "HighMark Funds (Fund Name)," to the
                      transfer agent at P.O. Box 8416, Boston, Massachusetts
                      02266-8416. All purchases made by check should be in U.S.
                      dollars and made payable to "HighMark Funds (Fund Name)."
                      Third party checks, credit card checks or cash will not be
                      accepted. You may purchase more Shares at any time by
                      mailing
 
                                       19
<PAGE>   453
 
                      payment also to the transfer agent at the above address.
                      Orders placed by mail will be executed on receipt of your
                      payment. If your check does not clear, your purchase will
                      be canceled and you could be liable for any losses or fees
                      incurred.
 
                        You may obtain Account Application Forms for the Funds
                      by calling the Distributor at 1-800-433-6884.
 
                      How to Purchase By Wire
 
                        You may purchase Shares of the Funds by wiring Federal
                      funds, provided that your Account Application has been
                      previously received. You must wire funds to the transfer
                      agent and the wire instructions must include your account
                      number. You must call the transfer agent at 1-800-433-6884
                      before wiring any funds. An order to purchase Shares by
                      Federal funds wire will be deemed to have been received by
                      a Fund on the Business Day of the wire; provided that the
                      Shareholder wires funds to the transfer agent prior to
                      1:00 p.m., Pacific time (4:00 p.m., Eastern time) . If the
                      transfer agent does not receive the wire by 1:00 p.m.,
                      Pacific time (4:00 p.m. Eastern time), the order will be
                      executed on the next Business Day.
 
                      How to Purchase through an Automatic Investment Plan
                      ("AIP")
 
                        You may arrange for periodic additional investments in
                      the Funds through automatic deductions by Automated
                      Clearing House ("ACH") from a checking account by
                      completing this section in the Account Application form.
                      The minimum pre-authorized investment amount is $100 per
                      month. The AIP is available only for additional
                      investments to an existing account.
 
                      How to Purchase Through Financial Institutions
 
                        Shares of the Funds may be purchased through financial
                      institutions, including the Advisor, that provide
                      distribution assistance or Shareholder services. Shares
                      purchased by persons ("Customers") through financial
                      institutions may be held of record by the financial
                      institution. Financial institutions may impose an earlier
                      cut-off time for receipt of purchase orders directed
                      through them to allow for processing and transmittal of
                      these orders to the transfer agent for effectiveness the
                      same day. Customers should contact their financial
                      institution for information as to that institution's
                      procedures for transmitting purchase, exchange or
                      redemption orders to HighMark.
 
                        Customers who desire to transfer the registration of
                      Shares beneficially owned by them but held of record by a
                      financial institution should contact the institution to
                      accomplish such change.
 
                        Depending upon the terms of a particular Customer
                      account, a financial institution may charge a Customer
                      account fees. Information concerning these
 
                                       20
<PAGE>   454
 
                      services and any charges will be provided to the Customer
                      by the financial institution.
 
                      Sales Charges
 
                        The following table shows the regular sales charge on
                      Retail Shares to a "single purchaser" (defined below)
                      together with the dealer discount paid to dealers and the
                      agency commission paid to brokers (collectively the
                      "commission"):
 
<TABLE>
<CAPTION>
                                                                                                COMMISSION AS
                                                  SALES CHARGE AS        SALES CHARGE AS        PERCENTAGE OF
                                                  A PERCENTAGE OF   APPROPRIATE PERCENTAGE OF     OFFERING
                           AMOUNT OF PURCHASE     OFFERING PRICE       NET AMOUNT INVESTED          PRICE
                        ------------------------  ---------------   -------------------------   -------------
                        <S>                       <C>               <C>                         <C>
                        0-$49,999...............       4.51%                  4.71%                 4.05%
                        $50,000-$99,000.........       4.00%                  4.17%                 3.60%
                        $100,000-$249,000.......       3.50%                  3.63%                 3.15%
                        $250,000-$499,999.......       2.50%                  2.56%                 2.25%
                        $500,000-$999,999.......       1.50%                  1.52%                 1.35%
                        $1,000,000 and Over*....       0.00%                  0.00%                 0.00%
</TABLE>
 
                      *A contingent deferred sales charge of 1.00% will be
                       assessed against any proceeds of any redemption of such
                       Retail Shares prior to one year from date of purchase.
 
                        The commissions shown in the table apply to sales
                      through authorized dealers and brokers. Under certain
                      circumstances, the Distributor may use its own funds to
                      compensate financial institutions and intermediaries in
                      amounts that are additional to the commissions shown
                      above. In addition, the Distributor may, from time to time
                      and at its own expense, provide promotional incentives in
                      the form of cash or other compensation to certain
                      financial institutions and intermediaries whose registered
                      representatives have sold or are expected to sell
                      significant amounts of the Retail Shares of a Fund. Such
                      other compensation may take the form of payments for
                      travel expenses, including lodging, incurred in connection
                      with trips taken by qualifying registered representatives
                      to places within or without the United States. Under
                      certain circumstances, commissions up to the amount of the
                      entire sales charge may be reallowed to dealers or
                      brokers, who might then be deemed to be "underwriters"
                      under the Securities Act of 1933. Commission rates may
                      vary among the Funds.
 
                        In calculating the sales charge rates applicable to
                      current purchases of a Fund's Shares, a "single purchaser"
                      is entitled to cumulate current purchases with the net
                      purchase of previously purchased Shares of a Fund and
                      other of HighMark's funds (the "Eligible Funds") which are
                      sold subject to a comparable sales charge.
 
                        The term "single purchaser" refers to (i) an individual,
                      (ii) an individual and spouse purchasing Shares of a Fund
                      for their own account or for trust or custodial
 
                                       21
<PAGE>   455
 
                      accounts for their minor children, or (iii) a fiduciary
                      purchasing for any one trust, estate or fiduciary account
                      including employee benefit plans created under Sections
                      401, 403(b) or 457 of the Internal Revenue Code of 1986,
                      as amended (the "Code"), including related plans of the
                      same employer. To be entitled to a reduced sales charge
                      based upon Shares already owned, the investor must ask the
                      Distributor for such entitlement at the time of purchase
                      and provide the account number(s) of the investor, the
                      investor and spouse, and their minor children, and give
                      the age of such children. A Fund may amend or terminate
                      this right of accumulation at any time as to subsequent
                      purchases.
 
                      Letter of Intent
 
                        By initially investing at least $1,000 and submitting a
                      Letter of Intent (the "Letter") to the Distributor, a
                      "single purchaser" may purchase Shares of a Fund and the
                      other Eligible Funds during a 13-month period at the
                      reduced sales charge rates applicable to the aggregate
                      amount of the intended purchases stated in the Letter. The
                      Letter may apply to purchases made up to 90 days before
                      the date of the Letter. To receive credit for such prior
                      purchases and later purchases benefitting from the Letter,
                      the Shareholder must notify the transfer agent at the time
                      the Letter is submitted that there are prior purchases
                      that may apply, and, at the time of later purchases,
                      notify the transfer agent that such purchases are
                      applicable under the Letter.
 
                      Rights of Accumulation
 
                        In calculating the sales charge rates applicable to
                      current purchases of Retail Shares, a "single purchaser"
                      is entitled to cumulate current purchases with the current
                      market value of previously purchased Retail Shares of the
                      Funds sold subject to a comparable sales charge.
 
                        To exercise your right of accumulation based upon Shares
                      you already own, you must ask the Distributor for this
                      reduced sales charge at the time of your additional
                      purchase and provide the account number(s) of the
                      investor, as applicable, the investor and spouse, and
                      their minor children. The Funds may amend or terminate
                      this right of accumulation at any time as to subsequent
                      purchases.
 
                      Sales Charge Waivers
 
                        The following categories of investors may purchase
                      Retail Shares of the Funds with no sales charge in the
                      manner described below (which may be changed or eliminated
                      at any time by the Distributor):
 
                         (1) Existing holders of Retail Shares of a Fund upon
                      the reinvestment of dividend and capital gain
                      distributions on those Shares;
 
                                       22
<PAGE>   456
 
                         (2) Investment companies advised by Pacific Alliance
                      Capital Management or distributed by SEI Financial
                      Services Company or its affiliates placing orders on each
                      entity's behalf;
 
                         (3) State and local governments;
 
                         (4) Individuals who have received distributions from
                      employee benefit trust accounts administered by Union Bank
                      of California who are rolling over such distributions into
                      an individual retirement account for which the Bank serves
                      as trustee or custodian;
 
                         (5) Individuals who purchase Shares with proceeds from
                      a required minimum distribution at age 70 1/2 from their
                      employee benefit qualified plan or an individual
                      retirement account administered by Union Bank of
                      California;
 
                         (6) Individuals who purchase Shares with proceeds
                      received in connection with a distribution paid from a
                      Union Bank of California trust or agency account;
 
                         (7) Investment advisors or financial planners regulated
                      by a federal or state governmental authority who are
                      purchasing Shares for their own account or for an account
                      for which they are authorized to make investment decisions
                      (i.e., a discretionary account) and who charge a
                      management, consulting or other fee for their services;
                      and clients of such investment advisors or financial
                      planners who place trades for their own accounts if the
                      accounts are linked to the master account of such
                      investment advisor or financial planner on the books and
                      records of a broker or agent;
 
                         (8) Investors purchasing Shares with proceeds from a
                      redemption of Shares of another open-end investment
                      company (other than The HighMark Group) on which a sales
                      charge was paid if such redemption occurred within thirty
                      (30) days prior to the date of the purchase order.
                      Satisfactory evidence of the purchaser's eligibility must
                      be provided at the time of purchase (e.g., a confirmation
                      of the redemption);
 
                         (9) Brokers, dealers and agents who are purchasing for
                      their own account and who have a sales agreement with the
                      Distributor, and their employees (and their spouses and
                      children under the age of 21);
 
                        (10) Investors purchasing Shares on behalf of a
                      qualified prototype retirement plan (other than an IRA,
                      SEP-IRA or Keogh) sponsored by Union Bank of California;
 
                        (11) Purchasers of Retail Shares of the Growth Fund that
                      are sponsors of other investment companies that are unit
                      investment trusts for deposit by such sponsors into such
                      unit investment trusts, and to purchasers of Retail Shares
                      of
 
                                       23
<PAGE>   457
 
                      the Growth Fund that are holders of such unit investment
                      trusts that invest distributions from such investment
                      trusts in Retail Shares of the Growth Fund;
 
                        (12) Present and retired directors, officers, and
                      employees (and their spouses and children under the age of
                      21) of Union Bank of California, SEI Financial Services
                      Company or their affiliated companies; and
 
                        (13) Investors receiving Shares issued in plans of
                      reorganization, such as mergers, asset acquisitions, and
                      exchange offers, to which HighMark is a party.
 
                        With regard to categories 2 through 12 above, the
                      Distributor must be notified that the purchase qualifies
                      for a sales charge waiver at the time of purchase.
 
                      Reductions for Qualified Groups
 
                        Reductions in sales charges also apply to purchases by
                      individual members of a "qualified group." The reductions
                      are based on the aggregate dollar amount of Shares
                      purchased by all members of the qualified group. For
                      purposes of this paragraph, a qualified group consists of
                      a "company," as defined in the 1940 Act, which has been in
                      existence for more than six months and which has a primary
                      purpose other than acquiring Shares of a Fund at a reduced
                      sales charge, and the "related parties" of such company.
                      For purposes of this paragraph, a "related party" of a
                      company is (i) any individual or other company who
                      directly or indirectly owns, controls or has the power to
                      vote five percent or more of the outstanding voting
                      securities of such company; (ii) any other company of
                      which such company directly or indirectly owns, controls
                      or has the power to vote five percent or more of its
                      outstanding voting securities; (iii) any other company
                      under common control with such company; (iv) any executive
                      officer, director or partner of such company or of a
                      related party; and (v) any partnership of which such
                      company is a partner. Investors seeking to rely on their
                      membership in a qualified group to purchase Shares at a
                      reduced sales load must provide evidence satisfactory to
                      the Transfer Agent of the existence of a bona fide
                      qualified group and their membership therein.
 
                        All orders from a qualified group will have to be placed
                      through a single source and identified at the time of
                      purchase as originating from the same qualified group,
                      although such orders may be placed into more than one
                      discrete account that identifies HighMark.
 
EXCHANGE
PRIVILEGES              As indicated under GENERAL INFORMATION--Description of
                      HighMark & Its Shares, certain of HighMark's Funds issue
                      two classes of Shares (Retail Shares and Fiduciary
                      Shares); as of the date of this Prospectus, the
                      Distribution Plan and distribution fee payable thereunder
                      are applicable only to such Fund's Retail Shares. A
                      Shareholder's eligibility to exchange into a particular
                      class of Shares will be determined at the time of the
                      exchange. The Shareholder must
 
                                       24
<PAGE>   458
 
                      supply, at the time of the exchange, the necessary
                      information to permit confirmation of qualification.
 
                        Each Fund's Shares may be exchanged for Shares of the
                      class of the various other Funds of HighMark which the
                      Shareholder qualifies to purchase directly so long as the
                      Shareholder maintains the applicable minimum account
                      balance in each Fund in which he or she owns Shares and
                      satisfies the minimum initial and subsequent purchase
                      amounts of the Fund into which the Shares are exchanged.
                      Shareholders may exchange their Retail Shares for Retail
                      Shares of a Fund with the same or lower sales charge on
                      the basis of the relative net asset value of the Retail
                      Shares exchanged. Shareholders may exchange their Retail
                      Shares for Retail Shares of a Fund with a higher sales
                      charge by paying the difference between the two sales
                      charges. Shareholders may also exchange Retail Shares of a
                      Money Market Fund for which no sales load was paid for
                      Retail Shares of an Equity Fund. Under such circumstances,
                      the cost of the acquired Retail Shares will be the net
                      asset value per share plus the appropriate sales load. If
                      Retail Shares of the Money Market Fund were acquired in a
                      previous exchange involving Shares of a non-money market
                      HighMark Fund, then such Shares of the Money Market Fund
                      may be exchanged for Shares of an Equity Fund without
                      payment of any additional sales load within a twelve month
                      period. In order to receive a reduced sales charge when
                      exchanging into a Fund, the Shareholder must notify
                      HighMark that a sales charge was originally paid and
                      provide sufficient information to permit confirmation of
                      qualification.
 
                        Exchanges will be made on the basis of the relative net
                      asset values of the Shares exchanged plus any applicable
                      sales charge. Exchanges are subject to the terms and
                      conditions stated herein and the terms and conditions
                      stated in the respective prospectuses of the Funds.
 
                        Certain entities (including Participating Organizations
                      and Union Bank of California and its affiliates), however,
                      may charge customers a fee with respect to exchanges made
                      on the customer's behalf. Information about these charges,
                      if any, can be obtained by the entity effecting the
                      exchange and this Prospectus should be read in conjunction
                      with that information.
 
                        A Shareholder wishing to exchange Shares in an Equity
                      Fund may do so by contacting the transfer agent at
                      1-800-433-6884. Exchanges will be effected on any Business
                      Day at the net asset value of the Funds involved in the
                      exchange next determined after the exchange request is
                      received by the transfer agent.
 
                        An exchange is considered to be a sale of Shares for
                      federal income tax purposes on which a Shareholder may
                      realize a capital gain or loss. Exchange privileges may be
                      exercised only in those states where Shares of such other
                      Funds
 
                                       25
<PAGE>   459
 
                      of HighMark may legally be sold. HighMark may materially
                      amend or terminate the exchange privileges described
                      herein upon sixty days' notice.
 
REDEMPTION
OF SHARES               You may redeem your Shares of the Funds without charge
                      on any Business Day. There is presently a $15 charge for
                      wiring redemption proceeds to a Shareholder's designated
                      account. Shares may be redeemed by mail, by telephone or
                      through a pre-arranged systematic withdrawal plan.
                      Investors who own Shares held by a financial institution
                      should contact that institution for information on how to
                      redeem Shares.
 
                      By Mail
 
                        A written request for redemption of Shares of the Funds
                      must be received by the transfer agent, P.O. Box 8416,
                      Boston, Massachusetts 02266-8416 in order to constitute a
                      valid redemption request.
 
                        If the redemption request exceeds $5,000, or if the
                      request directs the proceeds to be sent or wired to an
                      address different from that of record, the transfer agent
                      may require that the signature on the written redemption
                      request be guaranteed. You should be able to obtain a
                      signature guarantee from a bank, broker dealer, credit
                      union, securities exchange or association, clearing agency
                      or savings association. Notaries public cannot guarantee
                      signatures. The signature guarantee requirement will be
                      waived if all of the following conditions apply: (1) the
                      redemption is for not more than $5,000 worth of Shares,
                      (2) the redemption check is payable to the shareholder(s)
                      of record, and (3) the redemption check is mailed to the
                      shareholder(s) at his or her address of record.
 
                      Telephone Transactions
 
                        You may redeem your Shares of the Growth, Value
                      Momentum, Emerging Growth and Income Equity Funds by
                      calling the transfer agent at 1-800-433-6884. Under most
                      circumstances, payments will be transmitted on the next
                      Business Day following receipt of a valid request for
                      redemption. You may have the proceeds mailed to your
                      address or wired to a commercial bank account previously
                      designated on your Account Application. There is no charge
                      for having redemption proceeds mailed to you, but there is
                      a $15 charge for wiring redemption proceeds.
 
                        You may request a wire redemption for redemptions of
                      Shares of the Growth, Value Momentum, Emerging Growth and
                      Income Equity Funds in excess of $500 by calling the
                      Transfer Agent at 1-800-433-6884 who will deduct a wire
                      charge of $15 from the amount of the wire redemption.
                      Shares cannot be redeemed by Federal Reserve wire on
                      Federal holidays restricting wire transfers.
 
                                       26
<PAGE>   460
 
                        Neither the transfer agent nor HighMark will be
                      responsible for any loss, liability, cost or expense for
                      acting upon wire or telephone instructions that it
                      reasonably believes to be genuine. HighMark and transfer
                      agent will each employ reasonable procedures to confirm
                      that instructions, communicated by telephone are genuine.
                      Such procedures may include taping of telephone
                      conversations.
 
                        If market conditions are extraordinarily active or other
                      extraordinary circumstances exist, and you experience
                      difficulties placing redemption orders by telephone, you
                      may consider placing your order by mail.
 
                      Systematic Withdrawal Plan ("SWP")
 
                        The Funds offer a Systematic Withdrawal Plan ("SWP"),
                      which you may use to receive regular distributions from
                      your account. Upon commencement of the SWP, your account
                      must have a current net asset value of $5,000 or more. You
                      may elect to receive automatic payments via check or ACH
                      of $100 or more on a monthly, quarterly, semi-annual or
                      annual basis. You may arrange to receive regular
                      distributions from your account via check or ACH by
                      completing this section in the Account Application form.
 
                        To participate in the SWP, you must have your dividends
                      automatically reinvested. You should realize that if your
                      automatic withdrawals exceed income dividends, your
                      invested principal in the account will be depleted. Thus,
                      depending on the frequency and amounts of the withdrawal
                      payments and/or any fluctuations in the net asset value
                      per Share, your original investment could be exhausted
                      entirely. You may change or cancel the SWP at any time on
                      written notice to the transfer agent. The transfer agent
                      may require that the signature on the written notice be
                      guaranteed.
 
                        It is generally not in your best interest to be
                      participating in the SWP at the same time that you are
                      purchasing additional Shares if you have to pay a sales
                      load in connection with such purchases.
 
                      Other Information Regarding Redemptions
 
                        Shareholders who desire to redeem Shares of HighMark
                      must place their redemption orders prior to 1:00 p.m.,
                      Pacific time (4:00 p.m., Eastern time), on any Business
                      Day for the order to be accepted on that Business Day. The
                      redemption price is the net asset value of the Fund next
                      determined after receipt by the Distributor of the
                      redemption order. Payment on redemption will be made as
                      promptly as possible and, in any event, within seven
                      calendar days after the redemption order is received. The
                      Funds reserve the right to make payment on redemptions in
                      securities rather than cash.
 
                        Payment to the Shareholders for Shares redeemed will be
                      made within seven days after the transfer agent receives
                      the valid redemption request. At various
 
                                       27
<PAGE>   461
 
                      times, however, a Fund may be requested to redeem Shares
                      for which it has not yet received good payment; collection
                      of payment may take ten or more days. In such
                      circumstances, the redemption request will be rejected by
                      the Fund. Once a Fund has received good payment for the
                      Shares a Shareholder may submit another request for
                      redemption.
 
                        Due to the relatively high costs of handling small
                      investments, each Fund reserves the right to redeem your
                      Shares at net asset value if your account in any Fund has
                      a value of less than the minimum initial purchase amount.
                      Accordingly, if you purchase Shares of any Fund in only
                      the minimum investment amount, you may be subject to
                      involuntary redemption if you redeem any Shares. Before
                      any Fund exercises its right to redeem such Shares you
                      will be given notice that the value of the Shares in your
                      account is less than the minimum amount and will be
                      allowed 60 days to make an additional investment in such
                      Fund in an amount which will increase the value of the
                      account to at least the minimum amount.
 
DIVIDENDS               The net income of each of the Equity Funds is declared
                      and paid monthly as a dividend to Shareholders of record
                      at the close of business on the day of declaration. Net
                      realized capital gains are distributed at least annually
                      to Shareholders of record.
 
                        Shareholders will automatically receive all income
                      dividends and capital gains distributions in additional
                      full and fractional Shares of a Fund at net asset value as
                      of the date of declaration (which is also the ex-dividend
                      date), unless the Shareholder elects to receive such
                      dividends or distributions in cash. Shareholders wishing
                      to receive their dividends in cash (or wishing to revoke a
                      previously made election) must notify the transfer agent
                      at P.O. Box 8416, Boston, MA 02266-8416, and such election
                      (or revocation thereof) will become effective with respect
                      to dividends and distributions having record dates after
                      notice has been received. Dividends paid in additional
                      Shares receive the same tax treatment as dividends paid in
                      cash.
 
FEDERAL
TAXATION                Each Equity Fund intends to qualify for treatment as a
                      "regulated investment company" under the Internal Revenue
                      Code of 1986, as amended (the "Code"), and to distribute
                      substantially all of its net investment income and net
                      realized capital gains so that each Fund is not required
                      to pay federal taxes on these amounts.
 
                        Distributions of ordinary income and/or an excess of net
                      short-term capital gain over net long-term capital loss
                      are treated for federal income tax purposes as ordinary
                      income to Shareholders. The 70 percent dividends received
                      deduction for corporations generally will apply to these
                      distributions to the extent the distribution represents
                      amounts that would qualify for the dividends received
                      deduction when received by a Fund if a Fund were a regular
                      corporation, and to
 
                                       28
<PAGE>   462
 
                      the extent designated by a Fund as so qualifying.
                      Distributions by the Fund of the excess of net long-term
                      capital gain over net short-term capital loss is taxable
                      to Shareholders as long-term capital gain in the year with
                      respect to which it is received, regardless of how long
                      the Shareholder has held Shares of the Fund. Such
                      distributions are not eligible for the dividends received
                      deduction. If a Shareholder disposes of Shares in a Fund
                      at a loss before holding such Shares for longer than six
                      months, such loss will be treated as a long-term capital
                      loss to the extent the Shareholder has received long-term
                      capital gain dividends on the Shares.
 
                        Prior to purchasing Shares of the Equity Funds, the
                      impact of dividends or capital gain distributions that are
                      expected to be declared or have been declared, but not
                      paid, should be carefully considered. Dividends or capital
                      gain distributions received after a purchase of Shares are
                      subject to federal income taxes, although in some
                      circumstances, the dividends or distributions may be, as
                      an economic matter, a return of capital to the
                      Shareholder. A Shareholder should consult his or her
                      advisor for specific advice about the tax consequences to
                      the Shareholder of investing in a Fund.
 
                        Additional information regarding federal taxes is
                      contained in the Statement of Additional Information.
                      However, the foregoing and the material in the Statement
                      of Additional Information are only brief summaries of some
                      of the important tax considerations generally affecting
                      each Fund and its Shareholders. In addition, the foregoing
                      discussion and the federal tax information in the
                      Statement of Additional Information are based on tax laws
                      and regulations which are in effect as of the date of this
                      Prospectus; these laws and regulations may subsequently
                      change, and such changes could be retroactive.
 
                        Shareholders will be advised at least annually as to the
                      federal income tax status of distributions made during the
                      year.
 
SERVICE
ARRANGEMENTS          The Advisor
 
                        Pacific Alliance Capital Management, a division of Union
                      Bank of California, N.A., serves as the Equity Funds'
                      investment advisor. Subject to the general supervision of
                      HighMark's Board of Trustees, the Advisor manages each
                      Fund in accordance with its investment objective and
                      policies, makes decisions with respect to and places
                      orders for all purchases and sales of the Fund's
                      investment securities, and maintains the Fund's records
                      relating to such purchases and sales.
 
                        For the expenses assumed and services provided by the
                      Advisor as each Fund's investment advisor, Union Bank of
                      California receives a fee from the Growth Fund, Value
                      Momentum Fund and the Income Equity Fund, computed daily
                      and paid monthly, at the annual rate of sixty
                      one-hundredths of one percent (.60%) of
 
                                       29
<PAGE>   463
 
                      the Fund's average daily net assets, and from the Emerging
                      Growth Fund, at the annual rate of eighty one-hundredths
                      of one percent (.80%) of the Fund's average daily net
                      assets. This fee may be higher than the advisory fee paid
                      by most mutual funds, although the Board of Trustees
                      believes it will be comparable to advisory fees paid by
                      many funds having similar objectives and policies. Union
                      Bank of California may from time to time agree to
                      voluntarily reduce its advisory fee, however, it is not
                      currently doing so. While there can be no assurance that
                      Union Bank of California will choose to make such an
                      agreement, any voluntary reductions in Union Bank of
                      California's advisory fee will lower the Fund's expenses,
                      and thus increase the Fund's yield and total return,
                      during the period such voluntary reductions are in effect.
                      During HighMark's fiscal year ended July 31, 1996, Union
                      Bank of California received investment advisory fees from
                      the Growth Fund aggregating 0.50% of the Fund's average
                      daily net assets, and from the Income Equity Fund
                      aggregating 0.66% of the Fund's average daily net assets.
                      As of the date of this prospectus, the Value Momentum Fund
                      and the Emerging Growth Fund had not yet commenced
                      operations in HighMark.
 
                        On April 1, 1996, the Bank of California, N.A.,
                      HighMark's then investment advisor, combined with Union
                      Bank and the resulting bank changed its name to Union Bank
                      of California, N.A. At the same time, the banks'
                      investment management divisions were combined. Each of
                      Union Bank and The Bank of California, N.A. (or their
                      predecessor banks) has been in banking since the early
                      1900's and, historically, each has had significant
                      investment functions within its trust and investment
                      division. UnionBanCal Corporation, the parent of Union
                      Bank of California, N.A., is a publicly held corporation,
                      but is principally held by The Bank of Tokyo-Mitsubishi,
                      Ltd. As of September 30, 1996, Union Bank of California
                      and its subsidiaries had approximately $28.7 billion in
                      commercial assets. Pacific Alliance Capital Management is
                      a division of Union Bank of California's Trust and
                      Investment Management Group which, as of June 30, 1996,
                      had approximately $13.4 billion of assets under
                      management. The Advisor, with a team of approximately 45
                      stock and bond research analysts, portfolio managers and
                      traders, has been providing investment management services
                      to individuals, institutions and large corporations since
                      1917.
 
                        All investment decisions for the Equity Funds are made
                      by a team of investment professionals, all of whom take an
                      active part in the decision making process. The team
                      leaders for each Fund are as follows:
 
                            Growth Fund--The team leader for the Growth Fund is
                            Scott Chapman. Mr. Chapman has been Growth Fund team
                            leader for the Advisor since 1993. He began working
                            for the Advisor as an equity security analyst in
                            1991.
 
                                       30
<PAGE>   464
 
                            Value Momentum Fund--The team leader for the Value
                            Momentum Fund is Richard Earnest. Mr. Earnest, a
                            Senior Vice President of the Advisor, has served as
                            team leader of the Stepstone Value Momentum Fund
                            since its inception, and has been with the Advisor
                            and its predecessor, Union Bank, since 1964.
 
                            Income Equity Fund--The team leader for the Income
                            Equity Fund is Thomas Arrington. Mr. Arrington began
                            working for the Advisor as a Business Administration
                            Manager in 1990. From 1991 to 1994 Mr. Arrington was
                            a Securities Research Analyst. In 1994 Mr. Arrington
                            became team leader for the Income Equity Fund.
 
                      Sub-Advisor
 
                        The Advisor and Bank of Tokyo-Mitsubishi Trust Company
                      (the "Sub-Advisor") have entered into an investment
                      subadvisory agreement relating to the Emerging Growth Fund
                      (the "Investment Sub-Advisory Agreement"). Under the
                      Investment Sub-Advisory Agreement, the Sub-Advisor will
                      make the day-to-day investment decisions for the assets of
                      the Emerging Growth Fund, subject to the supervision of,
                      and policies established by, the Advisor and the Trustees
                      of HighMark.
 
                        Bank of Tokyo-Mitsubishi Trust Company, headquartered at
                      1251 Avenue of the Americas, New York, New York 10116,
                      operates as a wholly-owned subsidiary of The Bank of Tokyo
                      Mitsubishi, Ltd. The Sub-Advisor was formed by the
                      combination on April 1, 1996, of Bank of Tokyo Trust
                      Company, a wholly-owned subsidiary of The Bank of Tokyo,
                      Ltd., and Mitsubishi Bank Trust Company of New York, a
                      wholly-owned subsidiary of The Mitsubishi Bank, Limited.
                      Bank of Tokyo Trust Company was the surviving entity, and
                      changed its name to Bank of Tokyo-Mitsubishi Trust
                      Company. Prior to the combination, subadvisory services
                      were provided by Bank of Tokyo Trust Company. Bank of
                      Tokyo Trust Company was established in 1955, and has
                      provided trust services since that time and management
                      services since 1965.
 
                        The Sub-Advisor serves as portfolio manger to bank
                      common funds, employee benefit funds and personal trust
                      accounts, managing assets in money market, equity and
                      fixed income portfolios. As of June 30, 1996, the
                      Sub-Advisor managed $700 million in individual portfolios
                      and collective funds. In addition, the Sub-Advisor will
                      also serve as Sub-Advisor to HighMark's Government
                      Securities, Convertible Securities and Blue Chip Growth
                      Funds.
 
                        The Sub-Advisor is entitled to a fee, which is
                      calculated daily and paid monthly out of the Advisor's
                      fee, at an annual rate of .50% of the average daily net
                      assets of the Emerging Growth Fund. As of the date of this
                      prospectus, the Emerging Growth Fund had not yet commenced
                      operations in HighMark.
 
                                       31
<PAGE>   465
 
                        Seth E. Shalov will serve as portfolio manager to the
                      Emerging Growth Fund. Mr. Shalov has been a Senior
                      Portfolio Manager with the Sub-Advisor and its
                      predecessor, Bank of Tokyo Trust Company, since October,
                      1987.
 
                      Administrator
 
                        SEI Fund Resources (the "Administrator"), and HighMark
                      are parties to an administration agreement (the
                      "Administration Agreement"). Under the terms of the
                      Administration Agreement, the Administrator provides
                      HighMark with certain management services, including all
                      necessary office space, equipment, personnel, and
                      facilities.
 
                        The Administrator is entitled to a fee, which is
                      calculated daily and paid monthly, at an annual rate of
                      .20% of the average daily net assets of the Funds. The
                      Administrator may waive its fee or reimburse various
                      expenses to the extent necessary to limit the total
                      operating expenses of a Fund's Retail Shares. Any such
                      waiver is voluntary and may be terminated at any time in
                      the Administrator's sole discretion. Currently, the
                      Administrator has agreed to waive its fee to the rate of
                      .18% of the average daily net assets of the Funds.
 
                        Pursuant to a separate agreement with the Administrator,
                      Union Bank of California, N.A. performs sub-administration
                      services on behalf of each Fund, for which it receives a
                      fee paid by the Administrator at the annual rate of up to
                      0.05% of the average daily net assets of the Funds. Union
                      Bank of California has voluntarily agreed to reduce this
                      fee to 0.03%, but reserves the right to terminate its
                      waiver at any time in its sole discretion. A description
                      of the services performed by Union Bank of California
                      pursuant to this Agreement is contained in the Statement
                      of Additional Information.
 
                      The Transfer Agent
 
                        State Street Bank and Trust Company serves as the
                      transfer agent, dividend disbursing agent, and as a
                      shareholder servicing agent for the Retail Shares of
                      HighMark, for which services it receives a fee.
 
                      Shareholder Service Plan
 
                        To support the provision of Shareholder services to both
                      classes of Shares, HighMark has adopted a Shareholder
                      Service Plan. A description of the services performed by
                      service providers pursuant to the Shareholder Service Plan
                      is contained in the Statement of Additional Information.
                      In consideration of services provided by any service
                      provider, which may include Union Bank of California,
                      N.A., Bank of Tokyo-Mitsubishi, Ltd., or their respective
                      affiliates, each Fund may pay a fee at the rate of up to
                      0.25% of its average daily net assets to such service
                      provider. The service provider may waive such fees at any
                      time. Any such waiver is voluntary and may be terminated
                      at any time. Currently, such
 
                                       32
<PAGE>   466
 
                      fees are being waived to the rate of 0.10% of average
                      daily net assets for the Retail Shares of the Income
                      Equity Fund, 0.09% for the Retail Shares of the Growth
                      Fund, and 0.00% for the Retail Shares of the Value
                      Momentum and the Emerging Growth Funds.
 
                      Distributor
 
                        SEI Financial Services Company (the "Distributor") and
                      HighMark are parties to a distribution agreement
                      ("Distribution Agreement"). The Distribution Agreement is
                      renewable annually and may be terminated by the
                      Distributor, by a majority vote of the Disinterested
                      Trustees or by a majority vote of the outstanding
                      securities of HighMark upon not more than 60 days written
                      notice by either party, or upon assignment by the
                      Distributor.
 
                      The Distribution Plan
 
                        Pursuant to HighMark's Distribution Plan, each Equity
                      Fund pays the Distributor as compensation for its services
                      in connection with the Distribution Plan a distribution
                      fee, computed daily and paid monthly, equal to twenty-five
                      one-hundredths of one percent (0.25%) of the average daily
                      net assets attributable to that Fund's Retail Shares.
 
                        The Distributor may use the distribution fee applicable
                      to a Fund's Retail Shares to provide distribution
                      assistance with respect to the sale of the Fund's Retail
                      Shares or to provide Shareholder services to the holders
                      of the Fund's Retail Shares. The Distributor may also use
                      the distribution fee (i) to pay financial institutions and
                      intermediaries (such as insurance companies and investment
                      counselors but not including banks and savings and loan
                      associations), broker-dealers, and the Distributor's
                      affiliates and subsidiaries compensation for services or
                      reimbursement of expenses incurred in connection with the
                      distribution of a Fund's Retail Shares to their customers
                      or (ii) to pay banks, savings and loan associations, other
                      financial institutions and intermediaries, broker-dealers,
                      and the Distributor's affiliates and subsidiaries
                      compensation for services or reimbursement of expenses
                      incurred in connection with the provision of Shareholder
                      services to their customers owning a Fund's Retail Shares.
                      All payments by the Distributor for distribution
                      assistance or Shareholder services under the Distribution
                      Plan will be made pursuant to an agreement between the
                      Distributor and such bank, savings and loan association,
                      other financial institution or intermediary,
                      broker-dealer, or affiliate or subsidiary of the
                      Distributor (a "Servicing Agreement"; banks, savings and
                      loan associations, other financial institutions and
                      intermediaries, broker-dealers, and the Distributor's
                      affiliates and subsidiaries that may enter into a
                      Servicing Agreement are hereinafter referred to
                      individually as a "Participating Organization"). A
                      Participating Organization may include Union Bank of
                      California, its subsidiaries and its affiliates.
 
                                       33
<PAGE>   467
 
                        Participating Organizations may charge customers fees in
                      connection with investments in an Equity Fund on their
                      customers' behalf. Such fees would be in addition to any
                      amounts the Participating Organization may receive
                      pursuant to its Servicing Agreement. Under the terms of
                      the Servicing Agreements, Participating Organizations are
                      required to provide their customers with a schedule of
                      fees charged directly to such customers in connection with
                      investments in a Fund. Customers of Participating
                      Organizations should read this Prospectus in light of the
                      terms governing their accounts with the Participating
                      Organization.
 
                        The distribution fee under the Distribution Plan will be
                      payable without regard to whether the amount of the fee is
                      more or less than the actual expenses incurred in a
                      particular year by the Distributor in connection with
                      distribution assistance or Shareholder services rendered
                      by the Distributor itself or incurred by the Distributor
                      pursuant to the Servicing Agreements entered into under
                      the Distribution Plan. The Distributor may from time to
                      time voluntarily reduce its distribution fee with respect
                      to an Equity Fund in significant amounts for substantial
                      periods of time pursuant to an agreement with HighMark.
                      While there can be no assurance that the Distributor will
                      choose to make such an agreement, any voluntary reduction
                      in the Distributor's distribution fee will lower such
                      Equity Fund's expenses, and thus increase such Fund's
                      yield and total returns, during the period such voluntary
                      reductions are in effect.
 
                      Banking Laws
 
                        Union Bank of California believes that it may perform
                      the services for the Funds contemplated by its investment
                      advisory agreement with HighMark without a violation of
                      applicable banking laws and regulations. Union Bank of
                      California also believes that it may perform
                      sub-administration and sub-accounting services on behalf
                      of each Fund, without a violation of applicable banking
                      laws and regulations. Future changes in federal or state
                      statutes and regulations relating to permissible
                      activities of banks or bank holding companies and their
                      subsidiaries and affiliates, as well as further judicial
                      or administrative decisions or interpretations of present
                      and future statutes and regulations, could change the
                      manner in which Union Bank of California or the Advisor
                      could continue to perform such services for the Funds. For
                      a further discussion of applicable banking laws and
                      regulations, see the Statement of Additional Information.
 
                      Custodian
 
                        Union Bank of California also serves as the custodian
                      and as a shareholder servicing agent for the Equity Funds.
                      The Custodian holds cash securities and other assets of
                      HighMark as required by the 1940 Act.
 
                                       34
<PAGE>   468
 
                        Services performed by Union Bank of California, as the
                      Funds' shareholder servicing agent and custodian, as well
                      as the basis of remuneration for such services, are
                      described in the Statement of Additional Information.
 
GENERAL
INFORMATION           Description of HighMark & Its Shares

                        HighMark was organized as a Massachusetts business trust
                      on March 10, 1987, and consists of sixteen series of
                      Shares open for investment representing units of
                      beneficial interest in HighMark's Growth Fund, Income
                      Equity Fund, Balanced Fund, Value Momentum Fund, Blue Chip
                      Growth Fund, Emerging Growth Fund, International Equity
                      Fund, Bond Fund, Intermediate-Term Bond Fund, Government
                      Securities Fund, Convertible Securities Fund, California
                      Intermediate Tax-Free Bond Fund, Diversified Money Market
                      Fund, U.S. Government Obligations Money Market Fund, 100%
                      U.S. Treasury Obligations Money Market Fund, and
                      California Tax-Free Money Market Fund. As of the date
                      hereof, no Shares of the Value Momentum Fund, the Blue
                      Chip Growth Fund, the Emerging Growth Fund, the
                      International Equity Fund, the Intermediate-Term Bond
                      Fund, the Convertible Securities Fund, the Government
                      Securities Fund, and the California Intermediate Tax-Free
                      Bond Fund had been offered for sale in HighMark. Shares of
                      each Fund are freely transferable, are entitled to
                      distributions from the assets of the Fund as declared by
                      the Board of Trustees, and, if HighMark were liquidated,
                      would receive a pro rata share of the net assets
                      attributable to that Fund. Shares are without par value.
 
                        As noted above, pursuant to a Multiple Class Plan on
                      file with the Securities and Exchange Commission
                      permitting the issuance and sale of two classes of Shares
                      in selected Funds, Shares of such Funds have been divided
                      into two classes, designated Retail Shares and Fiduciary
                      Shares. For information regarding the Fiduciary Shares of
                      the Equity Funds, interested persons may contact the
                      Distributor for a prospectus at 1-800-433-6884.
 
                        HighMark believes that as of November 22, 1996, there
                      was no person who owned of record or beneficially more
                      than 25% of the Retail Shares of the Growth Fund or the
                      Income Equity Fund. As of November 22, 1996, the Value
                      Momentum and Emerging Growth Funds had not yet commenced
                      operations in HighMark.
 
                      Performance Information
 
                        From time to time, HighMark may advertise the aggregate
                      total return, average annual total return, yield and
                      distribution rate with respect to the Retail Shares of
                      each Equity Fund. Performance information is computed
                      separately for a Fund's Retail and Fiduciary Shares in
                      accordance with the formulas described below.
 
                                       35
<PAGE>   469
 
                        The aggregate total return and average annual total
                      return of the Equity Funds may be quoted for the life of
                      each Fund and for ten-year, five-year, three-year, and
                      one-year periods, in each case through the most recent
                      calendar quarter (in the case of the Income Equity Fund,
                      utilizing, when appropriate, the aggregate total return
                      and average annual total return of the IRA Fund Income
                      Equity Portfolio prior to June 23, 1988). Aggregate total
                      return is determined by calculating the change in the
                      value of a hypothetical $1,000 investment in a Fund over
                      the applicable period that would equate the initial amount
                      invested to the ending redeemable value of the investment.
                      The ending redeemable value includes dividends and capital
                      gain distributions reinvested at net asset value. Average
                      annual total return is calculated by annualizing a Fund's
                      aggregate total return over the relevant number of years.
                      The resulting percentage indicates the average positive or
                      negative investment results that an investor in a Fund
                      would have experienced on an annual basis from changes in
                      Share price and reinvestment of dividends and capital gain
                      distributions.
 
                        The yield of a Fund is determined by annualizing the net
                      investment income per Share of the Fund during a specified
                      thirty-day period and dividing that amount by the per
                      Share public offering price of the Fund on the last day of
                      the period.
 
                        The distribution rate of a Fund is determined by
                      dividing the income and capital gains distributions, or
                      where indicated the income distributions alone, on a Share
                      of the Fund over a twelve-month period by the per Share
                      public offering price of the Fund on the last day of the
                      period.
 
                        Each Fund may periodically compare its performance to
                      the performance of other mutual funds tracked by mutual
                      fund rating services (such as Lipper Analytical),
                      financial and business publications and periodicals; broad
                      groups of comparable mutual funds; unmanaged indices which
                      may assume investment of dividends but generally do not
                      reflect deductions for administrative and management
                      costs; or other investment alternatives. Certain Funds may
                      advertise performance that includes results from periods
                      in which the Fund's assets were managed in a
                      non-registered predecessor vehicle.
 
                        All performance information presented for a Fund is
                      based on past performance and does not predict future
                      performance.
 
                      Miscellaneous
 
                        Shareholders will be sent unaudited semi-annual reports
                      and annual reports audited by independent public
                      accountants.
 
                        Shareholders are entitled to one vote for each Share
                      held in a Fund as determined on the record date for any
                      action requiring a vote by the Shareholders,
 
                                       36
<PAGE>   470
 
                      and a proportionate fractional vote for each fractional
                      Share held. Shareholders of HighMark will vote in the
                      aggregate and not by series or class except (i) as
                      otherwise expressly required by law or when HighMark's
                      Board of Trustees determines that the matter to be voted
                      upon affects only the interests of the Shareholders of a
                      particular series or particular class, and (ii) only
                      Retail Shares will be entitled to vote on matters
                      submitted to a Shareholder vote relating to the
                      Distribution Plan. HighMark is not required to hold
                      regular annual meetings of Shareholders, but may hold
                      special meetings from time to time.
 
                        HighMark's Trustees are elected by Shareholders, except
                      that vacancies may be filled by vote of the Board of
                      Trustees. Trustees may be removed by the Board of
                      Trustees, or by Shareholders at a meeting called for such
                      purpose. For information about how Shareholders may call
                      such a meeting and communicate with other Shareholders for
                      that purpose, see ADDITIONAL INFORMATION--Miscellaneous
                      in the Statement of Additional Information.
 
                        Inquiries may be directed in writing to SEI Financial
                      Services Company, Oaks, Pennsylvania 19456, or by calling
                      toll free 1-800-433-6884.
 
DESCRIPTION
OF PERMITTED
INVESTMENTS             The following is a description of permitted investments
                      for the HighMark Equity Funds.
 
                        AMERICAN DEPOSITARY RECEIPTS (ADRs)--ADRs are receipts
                      typically issued by a U.S. financial institution that
                      evidence ownership of underlying securities issued by a
                      foreign issuer.
 
                        ASSET-BACKED SECURITIES (NON-MORTGAGE)--Instruments
                      secured by company receivables, truck and auto loans,
                      leases, and credit card receivables. Such securities are
                      generally issued as pass-through certificates, which
                      represent undivided fractional ownership interests in the
                      underlying pools of assets. Such securities also may be
                      debt instruments, which are also known as collateralized
                      obligations and are generally issued as the debt of a
                      special purpose entity, such as a trust, organized solely
                      for the purpose of owning such assets and issuing such
                      debt. The purchase of non-mortgage asset-backed securities
                      raises risk considerations peculiar to the financing of
                      the instruments underlying such securities. Asset-backed
                      securities entail prepayment risk, which may vary
                      depending on the type of asset, but is generally less than
                      the prepayment risk associated with mortgage-backed
                      securities.
 
                        Like mortgages underlying mortgage-backed securities,
                      underlying automobile sales contracts or credit card
                      receivables are subject to substantial prepayment risk,
                      which may reduce the overall return to certificate
                      holders. Nevertheless, principal prepayment rates tend not
                      to vary as much in response to changes in interest rates
                      and the short-term nature of the underlying car loans or
                      other
 
                                       37
<PAGE>   471
 
                      receivables tend to dampen the impact of any change in the
                      prepayment level. Certificate holders may also experience
                      delays in payment on the certificates if the full amounts
                      due on underlying sales contracts or receivables are not
                      realized by the trust because of unanticipated legal or
                      administrative costs of enforcing the contracts or because
                      of depreciation or damage to the collateral (usually
                      automobiles) securing certain contracts, or other factors.
                      If consistent with their investment objectives and
                      policies, the Equity Funds may invest in other asset-
                      backed securities that may be developed in the future.
 
                        BANKERS' ACCEPTANCES--Bills of exchange or time drafts
                      drawn on and accepted by commercial banks. They are used
                      by corporations to finance the shipment and storage of
                      goods and to furnish dollar exchange. Maturities are
                      generally six months or less.
 
                        CERTIFICATES OF DEPOSIT--Negotiable interest-bearing
                      instruments with a specific maturity. Certificates of
                      deposit are issued by banks and savings and loan
                      institutions in exchange for the deposit of funds and
                      normally can be traded in the secondary market prior to
                      maturity.
 
                        COMMERCIAL PAPER--Unsecured short-term promissory notes
                      issued by corporations and other entities. Maturities on
                      these issues vary from a few days to nine months. Purchase
                      of such instruments involves a risk of default by the
                      issuer.
 
                        CONVERTIBLE BONDS AND CONVERTIBLE PREFERRED STOCK--
                      Convertible Bonds are bonds convertible into a set number
                      of shares of another form of security (usually common
                      stock) at a prestated price. Convertible bonds have
                      characteristics similar to both fixed-income and equity
                      securities. Convertible preferred stock is a class of
                      capital stock that pays dividends at a specified rate and
                      that has preference over common stock in the payment of
                      dividends and the liquidation of assets. Convertible
                      preferred stock is preferred stock exchangeable for a
                      given number of common stock shares, and has
                      characteristics similar to both fixed-income and equity
                      securities. Because of the conversion feature, the market
                      value of convertible bonds and convertible preferred stock
                      tend to move together with the market value of the
                      underlying stock. As a result, a Fund's selection of
                      convertible bonds and convertible preferred stock is
                      based, to a great extent, on the potential for capital
                      appreciation that may exist in the underlying stock. The
                      value of convertible bonds and convertible preferred stock
                      is also affected by prevailing interest rates, the credit
                      quality of the issuer and any call provisions.
 
                        DERIVATIVES--Instruments whose value is derived from an
                      underlying contract, index or security, or any combination
                      thereof, including futures, options (e.g., puts and
                      calls), options on futures, swap agreements, and some
                      mortgage-backed securities (CMOs, REMICs, IOs and POs).
                      See elsewhere in this
 
                                       38
<PAGE>   472
 
                      "DESCRIPTION OF PERMITTED INVESTMENTS" for discussions of
                      these various instruments, and see "INVESTMENT OBJECTIVES"
                      and "INVESTMENT POLICIES" for more information about any
                      policies and limitations applicable to their use.
 
                        FUTURES AND OPTIONS ON FUTURES--Some futures strategies,
                      including selling futures, buying puts and writing calls,
                      reduce a Fund's exposure to price fluctuations. Other
                      strategies, including buying futures, writing puts and
                      buying calls, tend to increase market exposure. Futures
                      and options may be combined with each other in order to
                      adjust the risk and return characteristics of the overall
                      portfolio.
 
                        Options and futures can be volatile instruments, and
                      involve certain risks that, if applied at an inappropriate
                      time, could negatively impact a Fund's return.
 
                        INVESTMENT GRADE BONDS--Interest-bearing or discounted
                      government or corporate securities that obligate the
                      issuer to pay the bondholder a specified sum of money,
                      usually at specific intervals, and to repay the principal
                      amount of the loan at maturity. Investment grade bonds are
                      those rated BBB or better by S&P or Baa or better by
                      Moody's or similarly rated by other NRSROs, or, if not
                      rated, determined to be of comparable quality by the
                      Advisor.
 
                        MONEY MARKET INSTRUMENTS--Short-term, debt instruments
                      or deposits and may include, for example, (i) commercial
                      paper rated within the highest rating category by a NRSRO
                      at the time of investment, or, if not rated, determined by
                      the Advisor to be of comparable quality; (ii) obligations
                      (certificates of deposit, time deposits, bank master
                      notes, and bankers' acceptances) of thrift institutions,
                      savings and loans, U.S. commercial banks (including
                      foreign branches of such banks), and U.S. and foreign
                      branches of foreign banks, provided that such institutions
                      (or, in the case of a branch, the parent institution) have
                      total assets of $1 billion or more as shown on their last
                      published financial statements at the time of investment;
                      (iii) short-term corporate obligations rated within the
                      three highest rating categories by a NRSRO (e.g., at least
                      A by S&P or A by Moody's) at the time of investment, or,
                      if not rated, determined by the Advisor to be of
                      comparable quality; (iv) general obligations issued by the
                      U.S. Government and backed by its full faith and credit,
                      and obligations issued or guaranteed as to principal and
                      interest by agencies or instrumentalities of the U.S.
                      Government (e.g., obligations issued by Farmers Home
                      Administration, Government National Mortgage Association,
                      Federal Farm Credit Bank and Federal Housing
                      Administration); (v) receipts, including TRs, TIGRs and
                      CATS; (vi) repurchase agreements involving such
                      obligations; (vii) loan participations issued by a bank in
                      the United States with assets exceeding $1 billion and for
                      which the underlying loan is issued by borrowers in whose
                      obligations the Fund may invest; (viii) money market funds
                      and (ix) foreign commercial paper.
 
                                       39
<PAGE>   473
 
                        Certain of the obligations in which a Fund may invest
                      may be variable or floating rate instruments, may involve
                      conditional or unconditional demand features and may
                      include variable amount master demand notes.
 
                        OPTIONS--Under a call option, the purchaser of the
                      option has the right to purchase, and the writer (the
                      Fund) the obligation to sell, the underlying security at
                      the exercise price during the option period. A put option
                      gives the purchaser the right to sell, and the writer the
                      obligation to purchase, the underlying security at the
                      exercise price during the option period.
 
                        In addition, certain Funds may buy options on stock
                      indices to invest cash on an interim basis. Such options
                      will be listed on a national securities exchange. In order
                      to close out an option position, a Fund may enter into a
                      "closing purchase transaction"--the purchase of an option
                      on the same security with the same exercise price and
                      expiration date as the option contract previously written
                      on any particular security. When the security is sold, a
                      Fund effects a closing purchase transaction so as to close
                      out any existing option on that security.
 
                        There are risks associated with such investments
                      including the following: (1) the success of a hedging
                      strategy may depend on the ability of the Advisor or
                      Sub-Advisor to predict movements in the prices of
                      individual securities, fluctuations in markets and
                      movements in interest rates; (2) there may be an imperfect
                      correlation between the movement in prices of securities
                      held by a Fund and the price of options; (3) there may not
                      be a liquid secondary market for options; and (4) while a
                      Fund will receive a premium when it writes covered call
                      options, it may not participate fully in a rise in the
                      market value of the underlying security.
 
                        RECEIPTS--Interests in separately traded interest and
                      principal component parts of U.S. Treasury obligations
                      that are issued by banks and brokerage firms and are
                      created by depositing Treasury notes and Treasury bonds
                      into a special account at a custodian bank. The custodian
                      holds the interest and principal payments for the benefit
                      of the registered owners of the certificates of such
                      receipts. The custodian arranges for the issuance of the
                      certificates or receipts evidencing ownership and
                      maintains the register. Receipts include "Treasury
                      Receipts" ("TR's"), "Treasury Investment Growth Receipts"
                      ("TIGR's"), and "Certificates of Accrual on Treasury
                      Securities" ("CATS"). TR's, TIGR's and CATS are sold as
                      zero coupon securities, which means that they are sold at
                      a substantial discount and redeemed at face value at their
                      maturity date without interim cash payments of interest or
                      principal. This discount is accreted over the life of the
                      security, and such accretion will constitute the income
                      earned on the security for both accounting and tax
                      purposes. Because of these features, such securities may
                      be subject to greater interest rate volatility than
                      interest-paying securities. See also "FEDERAL TAXATION."
 
                                       40
<PAGE>   474
 
                        REPURCHASE AGREEMENTS--Agreements whereby a Fund will
                      acquire securities from approved financial institutions or
                      registered broker-dealers that agree to repurchase the
                      securities at a mutually agreed-upon date and price. The
                      repurchase agreements entered into by the Funds will
                      provide that the underlying security at all times shall
                      have a value equal to 102% of the resale price stated in
                      the agreement. Repurchase agreements involving government
                      securities are not subject to a Fund's fundamental
                      investment limitation on purchasing securities of any one
                      issuer. If the seller defaults on its repurchase
                      obligation or becomes insolvent, the Fund holding such
                      obligations would suffer a loss to the extent that either
                      the proceeds from a sale of the underlying portfolio
                      securities were less than the repurchase price or the
                      Fund's disposition of the securities was delayed pending
                      court action. Securities subject to repurchase agreements
                      will be held by a qualified custodian or in the Federal
                      Reserve/Treasury book-entry system. Repurchase agreements
                      are considered to be loans by a Fund under the Investment
                      Company Act of 1940 (the "1940 Act").
 
                        REVERSE REPURCHASE AGREEMENTS--A Fund may borrow funds
                      for temporary purposes by entering into reverse repurchase
                      agreements, provided such action is consistent with the
                      Fund's investment objective and fundamental investment
                      restrictions; as a matter of non-fundamental policy, each
                      Fund intends to limit such investments to no more than 10%
                      of the value of its total assets. Pursuant to a reverse
                      repurchase agreement, a Fund will sell portfolio
                      securities to financial institutions such as banks or to
                      broker-dealers, and agree to repurchase the securities at
                      a mutually agreed-upon date and price. A Fund intends to
                      enter into reverse repurchase agreements only to avoid
                      otherwise selling securities during unfavorable market
                      conditions to meet redemptions. At the time a Fund enters
                      into a reverse repurchase agreement, it will place in a
                      segregated custodial account assets such as U.S.Government
                      securities or other liquid, high-quality debt securities
                      consistent with the Fund's investment objective having a
                      value equal to 102% of the repurchase price (including
                      accrued interest), and will subsequently monitor the
                      account to ensure that an equivalent value is maintained.
                      Reverse repurchase agreements involve the risk that the
                      market value of the securities sold by a Fund may decline
                      below the price at which a Fund is obligated to repurchase
                      the securities. Reverse repurchase agreements are
                      considered to be borrowings by a Fund under the 1940 Act.
 
                        RULE 144A SECURITIES--Rule 144A Securities are
                      securities that have not been registered under the
                      Securities Act of 1933, but which may be traded between
                      certain qualified institutional investors, including
                      investment companies. The absence of a secondary market
                      may affect the value of the Rule 144A Securities. The
                      Board of Trustees of HighMark has established guidelines
                      and procedures to be utilized to determine the liquidity
                      of such securities.
 
                                       41
<PAGE>   475
 
                        SECURITIES ISSUED ON A FORWARD COMMITMENT BASIS OR
                      WHEN-ISSUED SECURITIES--Securities purchased for delivery
                      beyond the normal settlement date at a stated price and
                      yield and which thereby involve a risk that the yield
                      obtained in the transaction will be less than that
                      available in the market when delivery takes place. When a
                      Fund agrees to purchase when-issued securities or enter
                      into forward commitments, HighMark's custodian will be
                      instructed to set aside cash or liquid portfolio
                      securities equal to the amount of the commitment in a
                      segregated account. A Fund will generally not pay for such
                      securities and no income will accrue on the securities
                      until they are received. These securities are recorded as
                      an asset and are subject to changes in value based upon
                      changes in the general level of interest rates. Therefore,
                      the purchase of securities on a "when-issued" basis or
                      forward commitments may increase the risk of fluctuations
                      in a Fund's net asset value.
 
                        SECURITIES LENDING--During the time portfolio securities
                      are on loan from a Fund, the borrower will pay the Fund
                      any dividends or interest paid on the securities. In
                      addition, loans will be subject to termination by the Fund
                      or the borrower at any time and, while a Fund will
                      generally not have the right to vote securities on loan,
                      it will terminate the loan and regain the right to vote if
                      that is considered important with respect to the
                      investment. While the lending of securities may subject a
                      Fund to certain risks, such as delays or an inability to
                      regain the securities in the event the borrower were to
                      default on its lending agreement or enter into bankruptcy,
                      a Fund will receive 100% collateral in the form of cash or
                      U.S. Government securities. This collateral will be valued
                      daily by the lending agent, with oversight by the Advisor,
                      and, should the market value of the loaned securities
                      increase, the borrower will be required to furnish
                      additional collateral to the Fund.
 
                        SECURITIES SUBJECT TO A PUT FEATURE--A "put" feature
                      permits a Fund to sell a fixed income security at a fixed
                      price prior to maturity. The underlying fixed income
                      securities subject to a put may be sold at any time at the
                      market rates. However, unless the put was an integral part
                      of the fixed income security as originally issued, it may
                      not be marketable or assignable. Generally, a premium is
                      paid for a put feature or a put feature is purchased
                      separately which results in a lower yield than would
                      otherwise be available for the same fixed income
                      securities.
 
                        STANDARD & POOR'S DEPOSITARY RECEIPTS (SPDRs)--SPDRs are
                      interests in a unit investment trust holding a portfolio
                      of securities linked to the S&P 500 Index. SPDRs closely
                      track the underlying portfolio of securities, trade like a
                      share of common stock and pay periodic dividends
                      proportionate to those paid by the portfolio of stocks
                      that constitutes the S&P 500 Index. For further
                      information regarding SPDRs, see the Statement of
                      Additional Information.
 
                                       42
<PAGE>   476
 
                        TIME DEPOSITS--Non-negotiable receipts issued by U.S. or
                      foreign banks in exchange for the deposit of funds. Like
                      certificates of deposit, they earn a specified rate of
                      interest over a definite period of time; however, they
                      cannot be traded in the secondary market. Time deposits
                      with a withdrawal penalty are considered to be illiquid
                      securities.
 
                        U.S. GOVERNMENT AGENCY SECURITIES--Certain Federal
                      agencies have been established as instrumentalities of the
                      U.S. Government to supervise and finance certain types of
                      activities. Issues of these agencies, while not direct
                      obligations of the U.S. Government, are either backed by
                      the full faith and credit of the United States (e.g., GNMA
                      securities) or supported by the issuing agencies' right to
                      borrow from the U.S. Treasury. The issues of other
                      agencies are supported only by the credit of the
                      instrumentality (e.g., FNMA securities).
 
                        U.S. TREASURY OBLIGATIONS--Bills, notes, and bonds
                      issued by the U.S. Treasury, as well as separately traded
                      interest and principal component parts of such obligations
                      known as Separately Traded Registered Interest and
                      Principal Securities ("STRIPS") that are transferable
                      through the Federal book-entry system.
 
                        U.S. Government Securities generally do not involve the
                      credit risks associated with investments in other types of
                      fixed-income securities, although, as a result, the yields
                      available from U.S. Government Securities are generally
                      lower than the yields available from otherwise comparable
                      corporate fixed-income securities. Like other fixed-income
                      securities, however, the values of U.S. Government
                      Securities change as interest rates fluctuate.
                      Fluctuations in the value of portfolio securities will in
                      many cases not affect interest income on existing
                      portfolio securities, but will be reflected in the Fund's
                      net asset value. Because the magnitude of these
                      fluctuations will generally be greater at times when a
                      Fund's average maturity is longer, under certain market
                      conditions the Fund may invest in short-term investments
                      yielding lower current income rather than investing in
                      higher yielding longer-term securities.
 
                        VARIABLE AND FLOATING RATE INSTRUMENTS--Obligations that
                      may carry variable or floating rates of interest, may
                      involve conditional or unconditional demand features and
                      may include variable amount master demand notes. The
                      interest rates on these securities may be reset daily,
                      weekly, quarterly or some other reset period, and may have
                      a floor or ceiling on interest rate changes. There is a
                      risk that the current interest rate on such obligations
                      may not accurately reflect existing market interest rates.
                      A demand instrument with a demand notice period exceeding
                      seven days may be considered illiquid if there is no
                      secondary market for such security.
 
                                       43
<PAGE>   477
 
                        WARRANTS--Securities that entitle the holder to buy a
                      proportionate amount of common stock at a specified price
                      for a limited or unlimited period of time. Warrants are
                      often freely transferable and are traded on major stock
                      exchanges.
 
                        YANKEE BONDS--Dollar denominated securities issued by
                      foreign-domiciled issuers that obligate the issuer to pay
                      the bondholder a specified sum of money, usually
                      semiannually, and to repay the principal amount of the
                      loan at maturity. Sovereign bonds are bonds issued by the
                      governments of foreign countries. Supranational bonds are
                      those issued by supranational entities, such as the World
                      Bank and European Investment Bank. Canadian bonds are
                      bonds issued by Canadian provinces.
 
                        ZERO-COUPON OBLIGATIONS--Non-income producing securities
                      evidencing ownership of future interest and principal
                      payments on bonds. These obligations pay no current
                      interest and are typically sold at prices greatly
                      discounted from par value. The return on a zero-coupon
                      obligation, when held to maturity, equals the difference
                      between the par value and the original purchase price.
 
                        For federal income tax purposes, the difference between
                      the par value and the original issue price (original issue
                      discount) is included in the income of a holder of a
                      zero-coupon obligation over the term of the obligation
                      even though the interest is not paid until maturity. The
                      amount included in income is determined under a constant
                      interest rate method. In addition, if an obligation is
                      purchased subsequent to its original issue, a holder such
                      as the Income Funds may elect to include market discount
                      in income currently on a ratable accrual method or a
                      constant interest rate method. Market discount is the
                      difference between the obligation's "adjusted issue price"
                      (the original issue price plus original issue discount
                      accrued to date) and the holder's purchase price. If no
                      such election is made, gain on the disposition of a market
                      discount obligation is treated as ordinary income (rather
                      than capital gain) to the extent it does not exceed the
                      accrued market discount.
 
                        Zero-coupon obligations have greater price volatility
                      than other fixed-income obligations of similar maturity
                      and such obligations will be purchased when the yield
                      spread, in light of the obligation's duration, is
                      considered advantageous.
 
                                       44
<PAGE>   478
 
                             HighMark EQUITY FUNDS
                            INVESTMENT PORTFOLIOS OF
                                 HighMark FUNDS
                   For further information (including current
                  yield, purchase and redemption information),
                              call 1-800-433-6884
INVESTMENT ADVISOR
Pacific Alliance Capital Management,
a division of Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
SUB-ADVISOR
Bank of Tokyo-Mitsubishi Trust Company
1251 Avenue of the Americas
New York, New York 10116
 
CUSTODIAN
Union Bank of California, N.A.
475 Sansome Street
Post Office Box 45000
San Francisco, CA 94104
 
ADMINISTRATOR & DISTRIBUTOR
SEI Fund Resources and
SEI Financial Services Company
Oaks, PA 19456
 
LEGAL COUNSEL
Ropes & Gray
One Franklin Square
1301 K Street, N.W., Suite 800 East
Washington, D.C. 20005
 
AUDITORS
Deloitte & Touche LLP
1700 Courthouse Plaza Northeast
Dayton, OH 45402
 
  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS IN CONNECTION WITH THE OFFERING
MADE BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR
REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY HIGHMARK OR
ITS DISTRIBUTOR. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFERING BY HIGHMARK OR
BY THE DISTRIBUTOR IN ANY JURISDICTION IN WHICH SUCH OFFERING MAY NOT LAWFULLY
BE MADE.
 
NOT FDIC INSURED
<PAGE>   479
                              CROSS REFERENCE SHEET

   
                                 HIGHMARK FUNDS

                       STATEMENT OF ADDITIONAL INFORMATION
    

   
<TABLE>
<CAPTION>
Form N-1A Part B Item                                Information Caption
- ---------------------                                -------------------
<S>                                                 <C>           
10.      Cover Page                                  Cover Page

11.      Table of Contents                           Table of Contents

12.      General Information and History             Additional Information--Description of  Shares

13.      Investment Objectives and Policies          Investment Objectives and Policies; Additional Information
                                                     on Portfolio Instruments

14.      Management of  HighMark                     Management of  HighMark

15.      Control Persons and Principal
         Holders of Securities                       Additional Information-- Miscellaneous

16.      Investment Advisory and Other
         Services                                    Management of  HighMark

17.      Brokerage Allocation                        Management of  HighMark-- Portfolio Transactions

18.      Capital Stock and Other Securities          Valuation; Additional Purchase and Redemption
                                                     Information;  Management of  HighMark-- Distributor; The
                                                     Distribution  Plans; Additional Information

19.      Purchase, Redemption and                    Valuation; Additional Purchase and Redemption
         Pricing of Securities Being                 Information;  Management of  HighMark
         Offered

20.      Tax Status                                  Additional Purchase and Redemption Information--
                                                     Additional Federal Tax Information; Additional  Tax
                                                     Information Concerning the California Tax-Free
                                                     Money Market Fund and the California Intermediate
                                                     Tax-Free Bond Fund

21.      Underwriters                                Management of  HighMark -- Distributor

22.      Calculation of Performance Data             Additional Information -- Calculation of Performance Data

23.      Financial Statements                        Independent Auditors' Report for  HighMark  Funds
                                                     for the Year Ended July 31, 1996/Financial
                                                     Statements for  HighMark  Funds for the Periods
                                                     Ended July 31, 1996


</TABLE>
    


<PAGE>   480





   
                                 HIGHMARK FUNDS

                       STATEMENT OF ADDITIONAL INFORMATION

                                 MARCH 28, 1997



This Statement of Additional Information is not a Prospectus, but should be read
in conjunction with the Prospectuses of the HighMark Equity Funds, the HighMark
Fixed Income Funds and the HighMark Money Market Funds, each of which is dated
March 28, 1997 (collectively, the "Prospectuses") and any supplements thereto.
This Statement of Additional Information is incorporated in its entirety into
the Prospectuses. Copies of the Prospectuses may be obtained by writing the
Distributor, SEI Financial Services Company, at 680 East Swedesford Road, Wayne,
Pennsylvania, 19087-1658, or by telephoning toll free 1-800-734-2922.
Capitalized terms used but not defined herein have the same meanings as set
forth in the Prospectuses. 
    





                                                


<PAGE>   481



                                TABLE OF CONTENTS
   
<TABLE>
<CAPTION>

                                                                                                  Page
                                                                                                  ----

<S>                                                                                                 <C>
HIGHMARK  FUNDS....................................................................................  1

INVESTMENT OBJECTIVES AND POLICIES.................................................................  2

ADDITIONAL INFORMATION ON PORTFOLIO INSTRUMENTS....................................................  2
         Bank Instruments..........................................................................  2
         Commercial Paper and Variable Amount Master Demand Notes..................................  3
         Loan Participations.......................................................................  3
         Lending of Portfolio Securities...........................................................  4
         Repurchase Agreements.....................................................................  4
         Reverse Repurchase Agreements.............................................................  5
         U.S. Government Obligations...............................................................  5
         Mortgage-Related Securities...............................................................  6
         Adjustable  Rate Notes....................................................................  7
         Municipal Securities......................................................................  8
         Investments in California Municipal Securities by the California Tax-Free  Money
         Market Fund and the California Intermediate Tax-Free Bond Fund............................ 11
         Puts    .................................................................................. 14
         Shares of Mutual Funds.................................................................... 14
         When-Issued Securities  and Forward Commitments........................................... 15
         Zero-Coupon Securities.................................................................... 15
         High Quality Investments with Regard to the Money Market Funds............................ 29

INVESTMENT RESTRICTIONS............................................................................ 31
         Illiquid Securities....................................................................... 37
         Voting Information........................................................................ 38

PORTFOLIO TURNOVER................................................................................. 38

VALUATION.......................................................................................... 39
         Valuation of the Money Market Funds....................................................... 39
         Valuation of the Equity Funds and the Fixed Income Funds.................................. 39

ADDITIONAL PURCHASE AND REDEMPTION INFORMATION..................................................... 40
         Additional Federal Tax Information........................................................ 40
         Additional Tax Information Concerning The California Tax-Free Money
                  Market Fund and The California Intermediate Tax-Free Bond Fund................... 43
         Federal Taxation.......................................................................... 43
</TABLE>
    

                                       -i-


<PAGE>   482

   
<TABLE>

<S>                                                                                                              <C>
         California Taxation.................................................................................... 45
         Foreign Taxes.......................................................................................... 46

MANAGEMENT OF  HIGHMARK......................................................................................... 47
         Trustees and Officers.................................................................................. 47
         Investment  Advisor.................................................................................... 51
         The Sub-Advisors....................................................................................... 53
         Portfolio Transactions................................................................................. 54
         Glass-Steagall Act..................................................................................... 55
         Administrator and Sub-Administrator.................................................................... 56
         Shareholder Services Plan.............................................................................. 58
         Expenses .............................................................................................. 59
         Distributor............................................................................................ 60
         The Distribution Plans................................................................................. 60
         Transfer Agent and Custodian  Services................................................................. 61
         Auditors .............................................................................................. 62
         Legal Counsel.......................................................................................... 62

ADDITIONAL INFORMATION.......................................................................................... 62
         Description of Shares.................................................................................. 62
         Shareholder and Trustee Liability...................................................................... 64
         The Reorganization of the IRA Fund and  HighMark....................................................... 65
         Calculation of Performance Data........................................................................ 65
         Miscellaneous.......................................................................................... 71

APPENDIX ....................................................................................................... 80

INDEPENDENT AUDITORS' REPORT FOR  HIGHMARK  FUNDS FOR
         THE YEAR ENDED JULY 31, 1996........................................................................... 87

FINANCIAL STATEMENTS FOR  HIGHMARK  FUNDS FOR
         THE PERIODS ENDED JULY 31, 1996........................................................................ 88


</TABLE>
    

                                      -ii-


<PAGE>   483



                       STATEMENT OF ADDITIONAL INFORMATION

   
                                 HIGHMARK FUNDS


         HighMark Funds ("HighMark") is a diversified, open-end management
investment company. HighMark presently consists of sixteen series of Shares,
representing units of beneficial interest in the HighMark Growth Fund, the
HighMark Income Equity Fund, the HighMark Balanced Fund, the HighMark Value
Momentum Fund, the HighMark Blue Chip Growth Fund, the HighMark Emerging Growth
Fund, the HighMark International Equity Fund, the HighMark Bond Fund, the
HighMark Intermediate-Term Bond Fund, the HighMark Government Securities Fund,
the HighMark Convertible Securities Fund, the HighMark California Intermediate
Tax-Free Bond Fund, the HighMark Diversified Money Market Fund, the HighMark
U.S. Government Money Market Fund, the HighMark 100% U.S. Treasury Money Market
Fund, and the HighMark California Tax-Free Money Market Fund. As of the date
hereof, the HighMark Value Momentum Fund, the HighMark Blue Chip Growth Fund,
the HighMark Emerging Growth Fund, the HighMark International Equity Fund, the
HighMark Intermediate-Term Bond Fund, the HighMark Convertible Securities Fund,
the HighMark Government Securities Fund, and the HighMark California
Intermediate Tax-Free Bond Fund have not yet commenced operations in HighMark.
The HighMark Balanced Fund commenced operations on November 14, 1993 and the
HighMark Growth Fund commenced operations on November 18, 1993. The HighMark
Income Equity Fund and the HighMark Bond Fund commenced operations on June 23,
1988 as a result of the reorganization of the Income Equity Portfolio and the
Bond Portfolio, respectively, of the IRA Collective Investment Fund (the "IRA
Fund") described under "Additional Information - The Reorganization of the IRA
Fund and HighMark" below. The HighMark Diversified Money Market Fund, the
HighMark U.S. Government Money Market Fund and the 100% U.S. Treasury Money
Market Fund commenced operations on August 10, 1987. The HighMark California
Tax-Free Money Market Fund commenced operations on August 11, 1987.

         As described in the Prospectuses, selected Funds of HighMark have been
divided into two classes of Shares (designated Retail Shares and Fiduciary
Shares) for purposes of HighMark's Distribution and Shareholder Services Plans
(the "Distribution Plans"), which Distribution Plans apply only to such Funds'
Retail Shares. Retail Shares and Fiduciary Shares are sometimes herein referred
to collectively as "Shares".

         The Diversified Money Market Fund, the U.S. Government Money Market
Fund, the 100% U.S. Treasury Money Market Fund, and the California Tax-Free
Money Market Fund are sometimes herein referred to as the "Money Market Funds."
The Growth, Income Equity, Balanced, Value Momentum, Blue Chip Growth, Emerging
Growth, and International Equity Funds are sometimes referred to herein as the
"Equity Funds." The 
    

                                


<PAGE>   484


   
Bond, Intermediate-Term Bond, Government Securities, Convertible Securities, and
California Intermediate Tax-Free Bond Funds are sometimes referred to herein as
the "Fixed Income Funds." The Income Equity Portfolio and the Bond Portfolio of
the IRA Fund (which were reorganized into HighMark's Funds as described above)
are sometimes referred to herein as the "IRA Fund Portfolios."
    

         Much of the information contained herein expands upon subjects
discussed in the Prospectuses for the respective Funds. No investment in Shares
of a Fund should be made without first reading that Fund's Prospectus.


                       INVESTMENT OBJECTIVES AND POLICIES

   
         The following policies supplement the investment objectives and
policies of each Fund of HighMark as set forth in the respective Prospectus for
that Fund.
    


                 ADDITIONAL INFORMATION ON PORTFOLIO INSTRUMENTS

   
          1.  Bank Instruments.  Consistent with its investment objective, 
policies, and restrictions, each Fund (other than the U.S. Government Money
Market Fund, the 100% U.S. Treasury Money Market Fund, and the California
Tax-Free Money Market Fund) may invest in bankers' acceptances, certificates of
deposit, and time deposits.

         Bankers' acceptances are negotiable drafts or bills of exchange
typically drawn by an importer or exporter to pay for specific merchandise that
are "accepted" by a bank, meaning, in effect, that the bank unconditionally
agrees to pay the face value of the instrument on maturity. Investments in
bankers' acceptances will be limited to those guaranteed by domestic and foreign
banks having, at the time of investment, total assets of $1 billion or more (as
of the date of the institution's most recently published financial statements).
    

         Certificates of deposit and time deposits represent funds deposited in
a commercial bank or a savings and loan association for a definite period of
time and earning a specified return.

         Investments in certificates of deposit and time deposits may include
Eurodollar Certificates of Deposit, which are U.S. dollar denominated
certificates of deposit issued by offices of foreign and domestic banks located
outside the United States, Yankee Certificates of Deposit, which are
certificates of deposit issued by a U.S. branch of a foreign bank denominated in
U.S. dollars and held in the United States, Eurodollar Time Deposits ("ETDs"),
which are U.S. dollar denominated deposits in a foreign branch of a U.S. bank or
a foreign bank, and Canadian Time Deposits ("CTDs"), which are U.S. dollar
denominated certificates of deposit issued by Canadian offices of major 
Canadian banks. All investments in 

                                       -2-


<PAGE>   485



   
certificates of deposit and time deposits will be limited to those (a) of
domestic and foreignbanks and savings and loan associations which, at the time
of investment, have total assets of $1 billion or more (as of the date of the
institution's most recently published financial statements) or (b) the
principal amount of which is insured in full by the Federal Deposit Insurance
Corporation.

         There is no limitation on the Diversified Money Market Fund's ability
to invest in domestic certificates of deposit , bankers' acceptances or other
bank instruments in connection with the Fund's fundamental investment
restriction governing concentration in the securities of one or more issuers
conducting their principal business activities in the same industry. For
purposes of this exception to the Fund's fundamental investment restriction,
domestic certificates of deposit and bankers' acceptances include those issued
by domestic branches of foreign banks to the extent permitted by the rules and
regulations of the Securities and Exchange Commission staff. These rules and
regulations currently permit U.S. branches of foreign banks to be considered
domestic banks if it can be demonstrated that they are subject to the same
regulation as U.S. banks.

         2. Commercial Paper and Variable Amount Master Demand Notes. Consistent
with its investment objective, policies, and restrictions, each Fund (other than
the U.S. Government Money Market Fund and the 100% U.S. Treasury Money Market
Fund) may invest in commercial paper (including Section 4(2) commercial paper)
and variable amount master demand notes. Commercial paper consists of unsecured
promissory notes issued by corporations normally having maturities of 270 days
or less. These investments may include Canadian Commercial Paper, which is U.S.
dollar denominated commercial paper issued by a Canadian corporation or a
Canadian counterpart of a U.S. corporation, and Europaper, which is U.S. dollar
denominated commercial paper of a foreign issuer.
    

         Variable amount master demand notes are unsecured demand notes that
permit the indebtedness thereunder to vary and provide for periodic adjustments
in the interest rate according to the terms of the instrument. Because master
demand notes are direct lending arrangements between a Fund and the issuer, they
are not normally traded. Although there is no secondary market in the notes, a
Fund may demand payment of principal and accrued interest at any time. A
variable amount master demand note will be deemed to have a maturity equal to
the longer of the period of time remaining until the next readjustment of its
interest rate or the period of time remaining until the principal amount can be
recovered from the issuer through demand.

   
         3. Loan Participations. As indicated in the Money Market Funds'
Prospectus, the Diversified Money Market Fund may invest in loan participations
pursuant to which the Fund acquires a portion of a bank or other lending
institution's interest in a secured or unsecured loan to a corporate borrower.
Although the Fund's ability to receive payments of principal and interest in
connection with a particular loan participation is primarily dependent on the
financial condition of the underlying borrower, the lending institution 
    

                                       -3-


<PAGE>   486


   
or bank may provide assistance in collecting interest and principal from the
borrower and in enforcing its rights against the borrower in the event of a
default. Loans in which the Fund may purchase loan participations may be made to
finance a variety of corporate purposes, but will not be made to finance highly
leveraged activities such as "leveraged buy-outs." Loan participations will be
subject to the Fund's non fundamental limitation governing investments in
"illiquid" securities. See "Investment Restrictions" below.

         4. Lending of Portfolio Securities. In order to generate additional
income, each Fund (other than the California Tax-Free Money Market Fund) may
lend its portfolio securities to broker-dealers, banks or other institutions.
During the time portfolio securities are on loan from a Fund, the borrower will
pay the Fund any dividends or interest paid on the securities. In addition,
loans will be subject to termination by the Fund or the borrower at any time.
While the lending of securities may subject a Fund to certain risks, such as
delays or an inability to regain the securities in the event the borrower were
to default on its lending agreement or enter into bankruptcy, a Fund will
receive at least 100% collateral in the form of cash or U.S. Government
securities. This collateral will be valued daily by the lending agent, with
oversight by Pacific Alliance Capital Management (the "Advisor"), and, should
the market value of the loaned securities increase, the borrower will be
required to furnish additional collateral to the Fund. A Fund (other than the
California Tax-Free Money Market Fund) may lend portfolio securities in an
amount representing up to 331/3% of the value of the Fund's total assets.

          5. Repurchase Agreements. Securities held by each Fund (other than the
100% U.S. Treasury Money Market Fund) may be subject to repurchase agreements.
As a matter of non fundamental policy, the California Tax-Free Money Market Fund
intends to limit investments in repurchase agreements to no more than 5% of the
value of its total assets.

         Under the terms of a repurchase agreement, a Fund will deal with
financial institutions such as member banks of the Federal Deposit Insurance
Corporation having, at the time of investment, total assets of $100 million or
more and from registered broker-dealers that the Advisor deems creditworthy
under guidelines approved by HighMark's Board of Trustees. Under a repurchase
agreement, the seller agrees to repurchase the securities at a mutually
agreed-upon date and price, and the repurchase price will generally equal the
price paid by the Fund plus interest negotiated on the basis of current
short-term rates, which may be more or less than the rate on the underlying
portfolio securities. The seller under a repurchase agreement will be required
to maintain the value of collateral held pursuant to the agreement at not less
than 102% of the repurchase price (including accrued interest) and the
Custodian, with oversight by the Advisor, will monitor the collateral's value
daily and initiate calls to request that collateral be restored to appropriate
levels. In addition, securities subject to repurchase agreements will be held in
a segregated custodial account.
    

                                      -4-
<PAGE>   487

   
         If the seller were to default on its repurchase obligation or become
insolvent, the Fund holding such obligation would suffer a loss to the extent
that either the proceeds from a sale of the underlying portfolio securities were
less than the repurchase price under the agreement or the Fund's disposition of
the underlying securities was delayed pending court action. Additionally,
although there is no controlling legal precedent confirming that a Fund would be
entitled, as against a claim by the seller or its receiver or trustee in
bankruptcy, to retain the underlying securities, HighMark's Board of Trustees
believes that, under the regular procedures normally in effect for custody of a
Fund's securities subject to repurchase agreements and under federal laws, a
court of competent jurisdiction would rule in favor of the Fund if presented
with the question. Securities subject to repurchase agreements will be held by
HighMark's custodian or another qualified custodian or in the Federal
Reserve/Treasury book-entry system. Repurchase agreements are considered to be
loans by a Fund under the 1940 Act.

         6. Reverse Repurchase Agreements. Each Fund (other than the 100% U.S.
Treasury Money Market Fund) may borrow funds for temporary purposes by entering
into reverse repurchase agreements, provided such action is consistent with the
Fund's investment objective and fundamental investment restrictions; as a matter
of non fundamental policy, each Fund intends to limit total borrowings under
reverse repurchase agreements to no more than 10% of the value of its total
assets. Pursuant to a reverse repurchase agreement, a Fund will sell portfolio
securities to financial institutions such as banks or to broker-dealers, and
agree to repurchase the securities at a mutually agreed-upon date and price. A
Fund intends to enter into reverse repurchase agreements only to avoid otherwise
selling securities during unfavorable market conditions to meet redemptions. At
the time a Fund enters into a reverse repurchase agreement, it will place in a
segregated custodial account assets such as U.S. Government securities or other
liquid, high-quality debt securities consistent with the Fund's investment
objective having a value equal to 102% of the repurchase price (including
accrued interest), and will subsequently monitor the account to ensure that an
equivalent value is maintained. Reverse repurchase agreements involve the risk
that the market value of the securities sold by a Fund may decline below the
price at which a Fund is obligated to repurchase the securities. Reverse
repurchase agreements are considered to be borrowings by a Fund under the 1940
Act.

         7. U.S. Government Obligations. With the exception of the 100% U.S.
Treasury Money Market Fund, which may invest only in direct U.S. Treasury
obligations, each Fund may, consistent with its investment objective, policies,
and restrictions, invest in obligations issued or guaranteed by the U.S.
Government, its agencies, or instrumentalities. Obligations of certain agencies
and instrumentalities of the U.S. Government, such as those of the Government
National Mortgage Association and the Export-Import Bank of the United States,
are supported by the full faith and credit of the U.S. Treasury; others, such as
those of the Federal National Mortgage Association, are supported by the right
of the issuer to borrow from the Treasury; others, such as those of the Student
Loan Marketing Association, are supported by the discretionary authority of the
U.S. Government to purchase the agency's 
    

                                     -5-
                                      

<PAGE>   488


obligations; and still others, such as those of the Federal Farm Credit Banks or
the Federal Home Loan Mortgage Corporation, are supported only by the credit of
the instrumentality. No assurance can be given that the U.S. Government would
provide financial support to U.S. Government-sponsored agencies or
instrumentalities if it is not obligated to do so by law.

         For information concerning mortgage-related securities issued by
certain agencies or instrumentalities of the U.S. Government, see
"Mortgage-Related Securities" below.

   
         8. Mortgage-Related Securities. As indicated in the Money Market Funds'
Prospectus, the Diversified Money Market Fund and the U.S. Government Money
Market Fund may each invest in mortgage-related securities issued by the
Government National Mortgage Association ("GNMA") representing GNMA Mortgage
Pass-Through Certificates (also known as "Ginnie Maes"). The Fixed Income Funds
and the Balanced Fund may also, consistent with each such Fund's investment
objective and policies, invest in Ginnie Maes and in mortgage-related securities
issued or guaranteed by the U.S. Government, its agencies, or its
instrumentalities or, those issued by nongovernmental entities. In addition, the
Fixed Income Funds and the Balanced Fund may invest in collateralized mortgage
obligations ("CMOs") and real estate mortgage investment conduits ("REMICs").
    

         Mortgage-related securities represent interests in pools of mortgage
loans assembled for sale to investors. Mortgage-related securities may be
assembled and sold by certain governmental agencies and may also be assembled
and sold by nongovernmental entities such as commercial banks, savings and loan
institutions, mortgage bankers, and private mortgage insurance companies.
Although certain mortgage-related securities are guaranteed by a third party or
otherwise similarly secured, the market value of the security, which may
fluctuate, is not so secured. If a Fund purchases a mortgage-related security at
a premium, that portion may be lost if there is a decline in the market value of
the security, whether resulting from changes in interest rates or prepayments in
the underlying mortgage collateral. As with other interest-bearing securities,
the prices of mortgage-related securities are inversely affected by changes in
interest rates. However, although the value of a mortgage-related security may
decline when interest rates rise, the converse is not necessarily true because
in periods of declining interest rates the mortgages underlying the security are
prone to prepayment. For this and other reasons, a mortgage-related security's
stated maturity may be shortened by unscheduled prepayments on the underlying
mortgages and, therefore, it is not possible to predict accurately the
security's return to the Fund. In addition, regular payments received in respect
of mortgage-related securities include both interest and principal. No assurance
can be given as to the return a Fund will receive when these amounts are
reinvested.

         There are a number of important differences both among the agencies and
instrumentalities of the U.S. Government that issue mortgage-related securities
and among the securities themselves. As noted above, Ginnie Maes are issued by
GNMA, which is a wholly-owned U.S. Government corporation within the Department
of Housing and Urban 

                                       -6-


<PAGE>   489


Development. Ginnie Maes are guaranteed as to the timely payment of principal
and interest by GNMA and GNMA's guarantee is backed by the full faith and credit
of the U.S. Treasury. In addition, Ginnie Maes are supported by the authority of
GNMA to borrow funds from the U.S. Treasury to make payments under GNMA's
guarantee. Mortgage-related securities issued by the Federal National Mortgage
Association ("FNMA") include FNMA Guaranteed Mortgage Pass-Through Certificates
(also known as "Fannie Maes"), which are solely the obligations of the FNMA and
are not backed by or entitled to the full faith and credit of the U.S. Treasury.
The FNMA is a government-sponsored organization owned entirely by private
stockholders. Fannie Maes are guaranteed as to timely payment of principal and
interest by FNMA. Mortgage-related securities issued by the Federal Home Loan
Mortgage Corporation ("FHLMC") include FHLMC Mortgage Participation Certificates
(also known as "Freddie Macs" or "PCs"). The FHLMC is a corporate
instrumentality of the U.S. Government, created pursuant to an Act of Congress,
which is owned entirely by the Federal Home Loan Banks. Freddie Macs are not
guaranteed by the U.S. Treasury or by any Federal Home Loan Banks and do not
constitute a debt or obligation of the U.S. Government or of any Federal Home
Loan Bank. Freddie Macs entitle the holder to timely payment of interest, which
is guaranteed by the FHLMC. The FHLMC guarantees either ultimate collection or
timely payment of all principal payments on the underlying mortgage loans. When
the FHLMC does not guarantee timely payment of principal, FHLMC may remit the
amount due on account of its guarantee of ultimate payment of principal at any
time after default on an underlying mortgage, but in no event later than one
year after it becomes payable.

   
          CMOs in which the Fixed Income Funds and the Balanced Fund may invest
represent securities issued by a private corporation or a U.S. Government
instrumentality that are backed by a portfolio of mortgages or mortgage-backed
securities held under an indenture. The issuer's obligation to make interest and
principal payments is secured by the underlying portfolio of mortgages or
mortgage-backed securities. CMOs are issued with a number of classes or series
that have different maturities and that may represent interests in some or all
of the interest or principal on the underlying collateral or a combination
thereof. CMOs of different classes are generally retired in sequence as the
underlying mortgage loans in the mortgage pool are repaid. In the event of
sufficient early prepayments on such mortgages, the class or series of a CMO
first to mature generally will be retired prior to its maturity. Thus, the early
retirement of a particular class or series of a CMO held by a Fund would have
the same effect as the prepayment of mortgages underlying a mortgage-backed
pass-through security.

          REMICs in which the Fixed Income Funds and the Balanced Fund may
invest are private entities formed for the purpose of holding a fixed pool of
mortgages secured by an interest in real property. REMICs are similar to CMOs in
that they issue multiple classes of securities.
    
                                       -7-


<PAGE>   490


   
          9. Adjustable Rate Notes. Consistent with its investment objective,
policies, and restrictions, each Fund (other than the 100% U.S. Treasury Money
Market Fund) may invest in "adjustable rate notes," which include variable rate
notes and floating rate notes. For Money Market Fund purposes, a variable rate
note is one whose terms provide for the readjustment of its interest rate on set
dates and that, upon such readjustment, can reasonably be expected to have a
market value that approximates its amortized cost; the degree to which a
variable rate note's market value approximates its amortized cost subsequent to
readjustment will depend on the frequency of the readjustment of the note's
interest rate and the length of time that must elapse before the next
readjustment. A floating rate note is one whose terms provide for the
readjustment of its interest rate whenever a specified interest rate changes and
that, at any time, can reasonably be expected to have a market value that
approximates its amortized cost. Although there may be no active secondary
market with respect to a particular variable or floating rate note purchased by
a Fund, the Fund may seek to resell the note at any time to a third party. The
absence of an active secondary market, however, could make it difficult for the
Fund to dispose of a variable or floating rate note in the event the issuer of
the note defaulted on its payment obligations and the Fund could, as a result or
for other reasons, suffer a loss to the extent of the default. Variable or
floating rate notes may be secured by bank letters of credit. A demand
instrument with a demand notice period exceeding seven days may be considered
illiquid if there is no secondary market for such security. Such security will
be subject to a Fund's non fundamental 15% (10% in the case of the Money Market
Funds) limitation governing investments in "illiquid" securities, unless such
notes are subject to a demand feature that will permit the Fund to receive
payment of the principal within seven days of the Fund's demand. See "Investment
Restrictions" below.

          Maturities for variable and adjustable rate notes held in the Money
Market Funds will be calculated in compliance with the provisions of Rule 2a-7,
as it may be amended from time to time.

         As used above, a note is "subject to a demand feature" where the Fund
is entitled to receive the principal amount of the note either at any time on
not more than thirty days' notice or at specified intervals, not exceeding 397
days and upon not more than thirty days' notice.

         10. Municipal Securities. As defined in the Prospectuses, under normal
market conditions, at least 80% of the total assets of the California Tax-Free
Money Market Fund and 80% of the total assets of the California Intermediate
Tax-Free Bond Fund will be invested in Municipal Securities, the interest on
which is both excluded from gross income for federal income tax and California
personal income tax purposes and not treated as a preference item for
individuals for purposes of the federal alternative minimum tax. The California
Intermediate Tax-Free Bond Fund invests in Municipal Securities of varying
maturities, which are rated in one of the four highest rating categories by at
least one nationally recognized statistical organization ("NRSRO") or are
determined by the Advisor to be of comparable quality. The California Tax-Free
Money Market Fund 
    


                                       -8-


<PAGE>   491

   
invests only in Municipal Securities with remaining maturities of 397 days or
less, and which, at the time of purchase, possess the highest short-term rating
from at least one NRSRO or are determined by the Advisor to be of comparable
quality.
    

         Municipal Securities include debt obligations issued by governmental
entities to obtain funds for various public purposes, such as the construction
of a wide range of public facilities, the refunding of outstanding obligations,
the payment of general operating expenses, and the extension of loans to other
public institutions and public entities. Private activity bonds that are issued
by or on behalf of public authorities to finance various privately operated
facilities are included within the term Municipal Securities if the interest
paid thereon is (i) excluded from gross income for federal income tax purposes
and (ii) not treated as a preference item for individuals for purposes of the
federal alternative minimum tax.

   
         As described in the Prospectuses, the two principal classifications of
Municipal Securities consist of "general obligation" and "revenue" issues. In
general, only general obligation bonds are backed by the full faith and credit
and general taxing power of the issuer. There are, of course, variations in the
quality of Municipal Securities, both within a particular classification and
between classifications, and the yields on Municipal Securities depend upon a
variety of factors, including general market conditions, the financial condition
of the issuer (or other entity whose financial resources are supporting the
Municipal Securities), general conditions of the municipal bond market, the size
of a particular offering, the maturity of the obligation and the rating(s) of
the issue. In this regard, it should be emphasized that the ratings of any NRSRO
are general and are not absolute standards of quality; Municipal Securities with
the same maturity, interest rate and rating(s) may have different yields while
Municipal Securities of the same maturity and interest rate with a different
rating(s) may have the same yield.
    

         An issuer's obligations with respect to its Municipal Securities are
subject to the provisions of bankruptcy, insolvency, and other laws affecting
the rights and remedies of creditors, such as the Federal Bankruptcy Code, and
laws, if any, that may be enacted by Congress or state legislatures extending
the time for payment of principal or interest, or both, or imposing other
constraints upon the enforcement of such obligations or upon the ability of
municipalities to levy taxes or otherwise raise revenues. Certain of the
Municipal Securities may be revenue securities and dependent on the flow of
revenue, generally in the form of fees and charges. The power or ability of an
issuer to meet its obligations for the payment of interest on and principal of
its Municipal Securities may be materially adversely affected by litigation or
other conditions, including a decline in property value or a destruction of
uninsured property due to natural disasters.

   
         In addition, in accordance with its investment objective, each Fund may
invest in private activity bonds, which may constitute Municipal Securities
depending upon the federal income tax treatment of such bonds. Such bonds are
usually revenue bonds because the source of payment and security for such bonds
is the financial resources of the private entity
    

                                       -9-


<PAGE>   492


   
involved; the full faith and credit and the taxing power of the issuer in normal
circumstances will not be pledged. The payment obligations of the private entity
also will be subject to bankruptcy and similar debtor's rights, as well as other
exceptions similar to those described above. Moreover, the Funds may invest in
obligations secured in whole or in part by a mortgage or deed of trust on real
property located in California that are subject to the "anti-deficiency"
legislation discussed below.

         The Funds may also invest indirectly in Municipal Securities by
purchasing the shares of tax-exempt money market mutual funds. Such investments
will be made solely for the purpose of investing short-term cash on a temporary
tax-exempt basis and only in those funds with respect to which the Advisor
believes with a high degree of certainty that redemption can be effected within
seven days of demand. Additional limitations on investments by the Funds in the
shares of other tax-exempt money market mutual funds are set forth under
"Investment Restrictions" below.

         Certain Municipal Securities in the Funds may be obligations that are
payable solely from the revenues of health care institutions, although the
obligations may be secured by real or personal property of such institutions.
Certain provisions under federal and California law may adversely affect such
revenues and, consequently, payment on those Municipal Securities.

         Certain Municipal Securities in which the Funds may invest may be
obligations that are secured in whole or in part by a mortgage or deed of trust
on real property. California has certain statutory provisions that limit the
remedies of a creditor secured by a mortgage or deed of trust. Two of the
provisions limit a creditor's right to obtain a deficiency judgment, one
limitation being based on the method of foreclosure and the other on the type of
debt secured. A third statutory provision, commonly known as the "single action"
rule, has two aspects, an "affirmative defense aspect" and a "sanction aspect."
The "affirmative defense" aspect limits creditors secured by real property to a
single legal action for recovery of their debt, and that single action must be a
judicial foreclosure action against their real property security. Under the
"sanction" aspect, if the real estate-secured creditor proceeds by legal action
other than judicial foreclosure, the creditor loses its lien on the real
property security and, in some instances, the right to recover its debt. Another
statutory provision gives the debtor the right to redeem the real property from
any judicial foreclosure sale.

         Upon the default under a mortgage or deed of trust with respect to
California real property, a creditor's nonjudicial foreclosure rights under the
power of sale contained in the mortgage or deed of trust are subject to certain
procedural requirements whereby the effective minimum period for foreclosing on
a mortgage or deed of trust is generally four to five months after the initial
default and such foreclosure could be further delayed by bankruptcy proceedings
initiated by the debtor. Such time delays in collections could disrupt the flow
of revenues available to an issuer for the payment of debt service on the
outstanding obligations if such defaults occur with respect to a substantial
number of mortgages or deeds of trust securing an issuer's obligations.
Following a creditor's non-judicial foreclosure under 
    


                                      -10-


<PAGE>   493

a power of sale, no deficiency judgment is available. This limitation, however,
does not apply to bonds authorized or permitted to be issued by the Commissioner
of Corporations, or which are made by a public utility subject to the Public
Utilities Act.

   
         Certain Municipal Securities in the Funds may be obligations that
finance the acquisition of mortgages for low and moderate income mortgagors.
These obligations may be payable solely from revenues derived from home
mortgages and are subject to California's statutory limitations applicable to
obligations secured by real property, as described above. Under California
anti-deficiency legislation, there is no personal recourse against a mortgagor
of a dwelling of no more than four units, at least one of which is occupied by
such a mortgagor, where the dwelling has been purchased with the loan that is
secured by the mortgage, regardless of whether the creditor chooses judicial or
nonjudicial foreclosure. In the event that this purchase money anti-deficiency
rule applies to a loan secured by a mortgage or deed of trust, and the value of
the property subject to that mortgage or deed of trust has been substantially
reduced because of market forces or by an earthquake or other event for which
the mortgagor or trustor carried no insurance, upon default, the issuer holding
that loan nevertheless would be entitled to collect no more on its loan than it
could obtain from the foreclosure sale of the property.

         Legislation has been introduced from time to time regarding the
California state personal income tax status of interest paid on Municipal
Securities issued by the State of California and its local governments and held
by investment companies such as the California Tax-Free Money Market Fund and
the California Intermediate Tax-Free Bond Fund. The Funds can not predict what
legislation relating to Municipal Securities, if any, may be proposed in the
future or which proposals, if any, might be enacted. Such proposals, while
pending or if enacted, might materially adversely affect the availability of
Municipal Securities generally, as well as the availability of Municipal
Securities issued by the State of California and its local governments
specifically, for investment by the Funds and the liquidity and value of their
portfolios. In such an event, each Fund would re-evaluate its investment
objective and policies and consider changes in its structure or possible
dissolution. See "Investments in California Municipal Securities by the
California Tax-Free Money Market Fund and the California Intermediate Tax-Free
Bond Fund" below.

          11. Investments in California Municipal Securities by the California
Tax-Free Money Market Fund and the California Intermediate Tax-Free Bond Fund.
The following information is a general summary intended to give a recent
historical description, and is not a discussion of any specific factors that may
affect any particular issuer of California Municipal Securities. The information
is not intended to indicate continuing or future trends in the condition,
financial or otherwise, of California.

         Because each Fund expects to invest substantially all of its assets in
California Municipal Securities, it will be susceptible to a number of complex
factors affecting the issuers of California Municipal Securities, including
national and local political, economic, social, 
    

                                      -11-


<PAGE>   494

   
environmental, and regulatory policies and conditions. The Funds cannot predict
whether or to what extent such factors or other factors may affect the issuers
of California Municipal Securities, the market value or marketability of such
securities or the ability of the respective issuers of such securities to pay
interest on, or principal of, such securities. The creditworthiness of
obligations issued by a local California issuer may be unrelated to the
creditworthiness of obligations issued by the State of California, and there is
no responsibility on the part of the State of California to make payments on
such local obligations.
    

         From mid-1990 to late 1993, California suffered the most severe
recession in the State since the 1930's, with significant job losses
(particularly in the aerospace, other manufacturing, services and construction
sectors). The greatest effects of the recession were felt in Southern
California. While a steady recovery has been underway since 1994, pre-recession
employment levels are not expected to be reached until later in the decade.

   
         The recession severely affected State revenues while the State's 
health, welfare and education costs were increasing. The State's ability to
raise revenues and reduce expenditures to the extent necessary to balance the
budget for any year depends upon numerous factors, including economic conditions
in the State and the nation, the accuracy of the State's revenue predictions, as
well as the impact of budgetary restrictions imposed by voter-passed
initiatives.

         During the recession that began in 1990, the State depleted its
available cash resources and became increasingly dependent on external
borrowings to meet its cash needs. For over a decade, California has issued
revenue anticipation notes (which must be issued and repaid during the same
fiscal year) to fund its operating budget during the fiscal year. Beginning in
1992, the State expanded its external borrowing to include revenue anticipation
warrants (which can be issued and redeemed in different fiscal years). The State
was severely criticized by the major credit rating agencies for the State's
reliance upon such external borrowings during the recession. In 1996, the State
fully repaid $4 billion of revenue anticipation warrants issued in 1994. The
State anticipates that it will not need to use such "cross-year" borrowing
during the 1996-97 fiscal year. It is not presently possible, however, to
determine the extent to which California will issue additional revenue
anticipation warrants, short-term interest-bearing notes or other instruments in
future fiscal years.

         Certain of the securities in the California Tax-Free Money Market Fund
and the California Intermediate Tax-Free Bond Fund may be obligations of issuers
that rely in whole or in part, directly or indirectly, on ad valorem real
property taxes as a source of revenue. Article XIII A of the California
Constitution, adopted by the voters in 1978, limits ad valorem taxes on real
property, and restricts the ability of taxing entities to increase real property
and other taxes. Constitutional challenges to Article XIII A to date have been
unsuccessful.
    
                                      -12-


<PAGE>   495



         Article XIII B of the California Constitution limits significantly
spending by state government and by "local governments". Article XIII B
generally limits the amount of the appropriations of the State and of local
governments to the amount of appropriations of the entity for the prior year,
adjusted for changes in the cost of living, population, and the services that
the government entity is financially responsible for providing. To the extent
that the"proceeds of taxes" of the State or a local government exceed its
"appropriations limit," the excess revenues must be rebated. One of the
exclusions from these limitations for any entity of government is the debt
service costs of bonds existing or legally authorized as of January 1, 1979 or
on bonded indebtedness thereafter approved by the voters. Although Article XIII
B states that it shall not "be construed to impair the ability of the state or
of any local government to meet its obligations with respect to existing or
future bonded indebtedness," concern has been expressed with respect to the
combined effect of such constitutionally imposed spending limits on the ability
of California state and local governments to utilize bond financing.

         Article XIII B was modified substantially by Propositions 98 and 111 of
1988 and 1990, respectively. These initiatives changed the State's Article XIII
B appropriations limit to require that the State set aside a prudent reserve
fund for public education, and guarantee a minimum level of State funding for
public elementary and secondary schools as well as community colleges. Such
guaranteed spending is often cited as one of the causes of the State's recurring
budget problems.

         The effect of Article XIII A, Article XIII B and other constitutional
and statutory changes and of budget developments on the ability of California
issuers to pay interest and principal on their obligations remains unclear, and
may depend on whether a particular bond is a general obligation or limited
obligation bond (limited obligation bonds being generally less affected).

   
         There is no assurance that any California issuer will make full or
timely payments of principal or interest or remain solvent. For example, in
December 1994, Orange County filed for bankruptcy. In June 1995, Orange County
negotiated a rollover of its short-term debt originally due at that time; the
major rating agencies considered the rollover a default. The Orange County
bankruptcy and such default have had a serious effect upon the market for
California municipal obligations.
    

         Reductions in federal funding may adversely affect the State and
municipal economies. Welfare reform enacted in 1996 is expected to result in the
loss of approximately $6.8 billion in federal assistance available to the State
over the next six years; $5.8 billion of this amount relates to assistance for
resident noncitizens.

   
         In addition, it is impossible to predict the time, magnitude, or
location of a natural catastrophe, such as a major earthquake, or its effect on
the California economy. In January 1994, a major earthquake struck the Los
Angeles area, causing significant damage in a 
    

                                                      -13-


<PAGE>   496


four-county area. The possibility exists that another such earthquake could
create a major dislocation of the California economy.

   
         The Funds' concentration in California Municipal Securities provides a
greater level of risk than funds that are diversified across numerous states and
municipal entities.

          12. Puts. The California Tax-Free Money Market Fund and the California
Intermediate Tax-Free Bond Fund may acquire "puts" with respect to the Municipal
Securities held in their respective portfolios. A put is a right to sell a
specified security (or securities) within a specified period of time at a
specified exercise price. These Funds may sell, transfer, or assign a put only
in conjunction with the sale, transfer, or assignment of the underlying security
or securities.
    

         The amount payable to a Fund upon its exercise of a "put" is normally
(i) the Fund's acquisition cost of the securities (excluding any accrued
interest that the Fund paid on the acquisition), less any amortized market
premium or plus any amortized market or original issue discount during the
period the Fund owned the securities, plus (ii) all interest accrued on the
securities since the last interest payment date during that period.

   
         Puts may be acquired by a Fund to facilitate the liquidity of the
Fund's portfolio assets. Puts may also be used to facilitate the reinvestment of
a Fund's assets at a rate of return more favorable than that of the underlying
security. Under certain circumstances, puts may be used to shorten the maturity
of underlying adjustable rate notes for purposes of calculating the remaining
maturity of those securities and the dollar-weighted average portfolio maturity
of the California Tax-Free Money Market Fund's assets pursuant to Rule 2a-7
under the 1940 Act.

         The California Tax-Free Money Market Fund and the California
Intermediate Tax-Free Bond Fund will generally acquire puts only where the puts
are available without the payment of any direct or indirect consideration.
However, if necessary or advisable, a Fund may pay for puts either separately in
cash or by paying a higher price for portfolio securities that are acquired
subject to the puts (thus reducing the yield to maturity otherwise available for
the same securities).

         13. Shares of Mutual Funds. Each of the California Tax-Free Money
Market Fund, the Fixed Income Funds and the Equity Funds may invest up to 5% of
its total assets in the shares of any one investment company, but may not own
more than 3% of the securities of any one registered investment company or
invest more than 10% of its assets in the securities of other investment
companies. In accordance with an exemptive order issued to HighMark by the
Securities and Exchange Commission, such other registered investment companies
securities may include shares of a money market fund of HighMark, and may
include registered investment companies for which the Advisor or Sub-Advisor to
a Fund of HighMark, or an affiliate of such Advisor or Sub-Advisor, 
    

                                      -14-


<PAGE>   497

   
serves as investment advisor, administrator or distributor or provides other
services. Because other investment companies employ an investment advisor, such
investment by a Fund may cause Shareholders to bear duplicative fees. The
Advisor will waive its advisory fees attributable to the assets of the investing
Fund invested in a money market fund of HighMark, and, to the extent required by
applicable law, the Advisor will waive its fees attributable to the assets of
the Fund invested in any investment company. Additional restrictions on the
Fund's investments in the securities of a money market mutual fund are set forth
under "Investment Restrictions" below.

         Investments by the California Tax-Free Money Market Fund in the shares
of other tax-exempt money market mutual funds are described under "Municipal
Securities" above.

         14. When-Issued Securities and Forward Commitments. Each Fund may enter
into forward commitments or purchase securities on a "when-issued" basis, which
means that the securities will be purchased for delivery beyond the normal
settlement date at a stated price and yield and thereby involve the risk that
the yield obtained in the transaction will be less than that available in the
market when delivery takes place. A Fund will generally not pay for such
securities and no interest accrues on the securities until they are received by
the Fund. These securities are recorded as an asset and are subject to changes
in value based upon changes in the general level of interest rates. Therefore,
the purchase of securities on a "when-issued" basis may increase the risk of
fluctuations in a Fund's net asset value.

         When a Fund agrees to purchase securities on a "when-issued" basis or
enter into forward commitments, HighMark's custodian will be instructed to set
aside cash or liquid portfolio securities equal to the amount of the commitment
in a separate account. Normally, the custodian will set aside portfolio
securities to satisfy the purchase commitment, and in such a case, the Fund may
be required subsequently to place additional assets in the separate account in
order to assure that the value of the account remains equal to the amount of the
Fund's commitment.

         The Funds expect that commitments to enter into forward commitments or
purchase "when-issued" securities will not exceed 25% of the value of their
respective total assets under normal market conditions; in the event any Fund
exceeded this 25% threshold, the Fund's liquidity and the Advisor's ability to
manage it might be adversely affected. In addition, the Funds do not intend to
purchase "when-issued" securities or enter into forward commitments for
speculative or leveraging purposes but only in furtherance of such Fund's
investment objective.

          15. Zero-Coupon Securities. Consistent with its objectives, a Fund may
invest in zero-coupon securities, which are debt securities that do not pay
interest, but instead are issued at a deep discount from par. The value of the
security increases over time to reflect the interest accreted. The value of
these securities may fluctuate more than similar securities that are issued at
par and pay interest periodically. Although these securities pay no interest to
holders
    


                                      -15-


<PAGE>   498

prior to maturity, interest on these securities is reported as income to the
Fund and distributed to its shareholders. These distributions must be made from
the Fund's cash assets or, if necessary, from the proceeds of sales of portfolio
securities. The Fund will not be able to purchase additional income producing
securities with cash used to make such distributions and its current income
ultimately may be reduced as a result

   
         16.  Options (Puts and Calls) on Securities.  Each Equity Fund may buy
and sell options (puts and calls), and write call options on a covered basis.

         17. Covered Call Writing. Each Equity Fund may write covered call
options from time to time on such portion of its assets, without limit, as the
Advisor determines is appropriate in seeking to obtain its investment objective.
A Fund will not engage in option writing strategies for speculative purposes. A
call option gives the purchaser of such option the right to buy, and the writer,
in this case the Fund, has the obligation to sell the underlying security at the
exercise price during the option period. The advantage to the Fund of writing
covered calls is that the Fund receives a premium which is additional income.
However, if the value of the security rises, the Fund may not fully participate
in the market appreciation.

         During the option period, a covered call option writer may be assigned
an exercise notice by the broker/dealer through whom such call option was sold,
which requires the writer to deliver the underlying security against payment of
the exercise price. This obligation is terminated upon the expiration of the
option period or at such earlier time in which the writer effects a closing
purchase transaction. A closing purchase transaction is one in which a Fund,
when obligated as a writer of an option, terminates its obligation by purchasing
an option of the same series as the option previously written. A closing
purchase transaction cannot be effected with respect to an option once the
option writer has received an exercise notice for such option.

         Closing purchase transactions will ordinarily be effected to realize a
profit on an outstanding call option, to prevent an underlying security from
being called, to permit the sale of the underlying security, or to enable the
Fund to write another call option on the underlying security with either a
different exercise price or expiration date or both. The Fund may realize a net
gain or loss from a closing purchase transaction, depending upon whether the net
amount of the original premium received on the call option is more or less than
the cost of effecting the closing purchase transaction. Any loss incurred in a
closing purchase transaction may be partially or entirely offset by the premium
received from a sale of a different call option on the same underlying security.
Such a loss may also be wholly or partially offset by unrealized appreciation in
the market value of the underlying security. Conversely, a gain resulting from a
closing purchase transaction could be offset in whole or in part by a decline in
the market value of the underlying security.
    


                                      -16-


<PAGE>   499

   
         If a call option expires unexercised, the Fund will realize a short
term capital gain in the amount of the premium on the option, less the
commission paid. Such a gain, however, may be offset by depreciation in the
market value of the underlying security during the option period. If a call
option is exercised, the Fund will realize a gain or loss from the sale of the
underlying security equal to the difference between the cost of the underlying
security, and the proceeds of the sale of the security plus the amount of the
premium on the option, less the commission paid.

         The market value of a call option generally reflects the market price
of an underlying security. Other principal factors affecting market value
include supply and demand, interest rates, the price volatility of the
underlying security and the time remaining until the expiration date.

         The Fund will write call options only on a covered basis, which means
that the Fund will own the underlying security subject to a call option at all
times during the option period or will own the right to acquire the underlying
security at a price equal to or below the option's strike price. Unless a
closing purchase transaction is effected the Fund would be required to continue
to hold a security which it might otherwise wish to sell, or deliver a security
it would want to hold. Options written by the Fund will normally have expiration
dates between one and nine months from the date written. The exercise price of a
call option may be below, equal to or above the current market value of the
underlying security at the time the option is written.

         18. Purchasing Call Options. The Equity Funds may purchase call options
to hedge against an increase in the price of securities that the Fund wants
ultimately to buy. Such hedge protection is provided during the life of the call
option since the Fund, as holder of the call option, is able to buy the
underlying security at the exercise price regardless of any increase in the
underlying security's market price. In order for a call option to be profitable,
the market price of the underlying security must rise sufficiently above the
exercise price to cover the premium and transaction costs. These costs will
reduce any profit the Fund might have realized had it bought the underlying
security at the time it purchased the call option. The Funds may sell, exercise
or close out positions as the Advisor deems appropriate.

         19. Purchasing Put Options. Each Equity Fund may purchase put options
to protect its portfolio holdings in an underlying security against a decline in
market value. Such hedge protection is provided during the life of the put
option since the Fund, as holder of the put option, is able to sell the
underlying security at the put exercise price regardless of any decline in the
underlying security's market price. For a put option to be profitable, the
market price of the underlying security must decline sufficiently below the
exercise price to cover the premium and transaction costs. By using put options
in this manner, a Fund will reduce any profit it might otherwise have realized
from
    

                                                      -17-


<PAGE>   500


   
appreciation of the underlying security by the premium paid for the put option
and by transaction costs.

         20.  Options in Stock Indices.  The Equity Funds may engage in options
on stock indices. A stock index assigns relative values to the common stock
included in the index with the index fluctuating with changes in the market
values of the underlying common stock.

         Options on stock indices are similar to options on stocks but have
different delivery requirements. Stock options provide the right to take or make
delivery of the underlying stock at a specified price. A stock index option
gives the holder the right to receive a cash "exercise settlement amount" equal
to (i) the amount by which the fixed exercise price of the option exceeds (in
the case of a put) or is less than (in the case of a call) the closing value of
the underlying index on the date of exercise, multiplied by (ii) a fixed "index
multiplier." Receipt of this cash amount will depend upon the closing level of
the stock index upon which the option is based being greater than (in the case
of a call) or less than (in the case of a put) the exercise price of the option.
The amount of cash received will be equal to such difference between the closing
price of the index and exercise price of the option expressed in dollars times a
specified multiple. The writer of the option is obligated, in return of the
premium received, to make delivery of this amount. Gain or loss to a Fund on
transactions in stock index options will depend on price movements in the stock
market generally (or in a particular industry or segment of the market) rather
than price movements of individual securities.

         As with stock options, a Fund may offset its position in stock index
options prior to expiration by entering into a closing transaction on an
exchange or it may let the option expire unexercised.

         A stock index fluctuates with changes in the market values of the stock
so included. Some stock index options are based on a broad market index, such as
the Standard & Poor's 500 or the New York Stock Exchange Composite Index, or a
narrower market index such as the Standard & Poor's 100. Indices are also based
on an industry or market segment such as the AMEX Oil and Gas Index or the
Computer and Business Equipment Index. Options on stock indices are currently
traded on the following exchanges among others: The Chicago Board Options
Exchange, New York Stock Exchange, American Stock Exchange and London Stock
Exchange.

         A Fund's ability to hedge effectively all or a portion of its
securities through transactions in options on stock indices depends on the
degree to which price movements in the underlying index correlate with price
movements in the Fund's portfolio securities. Since a Fund's portfolio will not
duplicate the components of an index, the correlation will not be exact.
Consequently, a Fund bears the risk that the prices of the securities being
hedged will not move in the same amount as the hedging instrument. It is also
    


                                      -18-


<PAGE>   501

   
possible that there may be a negative correlation between the index or other
securities underlying the hedging instrument and the hedged securities which
would result in a loss on both such securities and the hedging instrument.


         A Fund will enter into an option position only if there appears to be a
liquid secondary market for such options.

         A Fund will not engage in transactions in options on stock indices for
speculative purposes but only to protect appreciation attained, to offset
capital losses and to take advantage of the liquidity available in the option
markets. The aggregate premium paid on all options on stock indices will not
exceed 20% of a Fund's total assets.

         21.  Risk Factors in Options Transactions.  The successful use of 
options strategies depends on the ability of the Advisor or, where applicable,
the Sub-Advisor to forecast interest rate and market movements correctly.

         When it purchases an option, a Fund runs the risk that it will lose its
entire investment in the option in a relatively short period of time, unless the
Fund exercises the option or enters into a closing sale transaction with respect
to the option during the life of the option. If the price of the underlying
security does not rise (in the case of a call) or fall (in the case of a put) to
an extent sufficient to cover the option premium and transaction costs, a Fund
will lose part or all of its investment in the option. This contrasts with an
investment by a Fund in the underlying securities, since the Fund may continue
to hold its investment in those securities notwithstanding the lack of a change
in price of those securities.

         The effective use of options also depends on a Fund's ability to
terminate option positions at times when the Advisor or, where applicable, the
Sub-Advisor deems it desirable to do so. Although a Fund will take an option
position only if its Advisor or, where applicable, the Sub-Advisor believes
there is liquid secondary market for the option, there is no assurance that a
Fund will be able to effect closing transactions at any particular time or at an
acceptable price.

         If a secondary trading market in options were to become unavailable, a
Fund could no longer engage in closing transactions. Lack of investor interest
might adversely affect the liquidity of the market for particular options or
series of options. A marketplace may discontinue trading of a particular option
or options generally. In addition, a market could become temporarily unavailable
if unusual events such as volume in excess of trading or clearing capability,
were to interrupt normal market operations. A marketplace may at times find it
necessary to impose restrictions on particular types of options transactions,
which may limit a Fund's ability to realize its profits or limit its losses.
    
                                      -19-


<PAGE>   502

   
         Disruptions in the markets for securities underlying options purchased
or sold by a Fund could result in losses on the options. If trading is
interrupted in an underlying security, the trading of options on that security
is normally halted as well. As a result, a Fund as purchaser or writer of an
option will be unable to close out its positions until options trading resumes,
and it may be faced with losses if trading in the security reopens at a
substantially different price. In addition, the Options Clearing Corporation
(OCC) or other options markets, such as the London Options Clearing House, may
impose exercise restrictions. If a prohibition on exercise is imposed at the
time when trading in the option has also been halted, a Fund as purchaser or
writer of an option will be locked into its position until one of the two
restrictions has been lifted. If a prohibition on exercise remains in effect
until an option owned by a Fund has expired, the Fund could lose the entire
value of its option.

         22. Futures Contracts on Securities and Related Otpions. A Fund may
invest in futures and related options based on any type of security or index
traded on U.S. or foreign exchanges, or over the counter as long as the
underlying security or the securities represented by the future or index are
permitted investments of the Fund. Futures and options can be combined with each
other in order to adjust the risk and return parameters of a Fund.

         23. Futures Contracts on Securities. A Fund will enter into futures
contracts on securities only when, in compliance with the SEC's requirements,
cash or equivalents equal in value to the securities' value (less any applicable
margin deposits) have been deposited in a segregated account of the Fund's
custodian.

         A futures contract sale creates an obligation by the seller to deliver
the type of instrument called for in the contract in a specified delivery month
for a stated price. A futures contract purchase creates an obligation by the
purchaser to take delivery of the type of instrument called for in the contract
in a specified delivery month at a stated price. The specific instruments
delivered or taken at settlement date are not determined until on or near that
date. The determination is made in accordance with the rules of the exchanges on
which the futures contract was made. Futures contracts are traded in the United
States only on the commodity exchange or boards of trade, known as "contract
markets," approved for such trading by the Commodity Futures Trading Commission
(CFTC), and must be executed through a futures commission merchant or brokerage
firm which is a member of the relevant contract market.

         Although futures contracts by their terms call for actual delivery or
acceptance of securities, the contracts usually are closed out before the
settlement date without the making or taking of delivery. Closing out a futures
contract sale is effected by purchasing a futures contract for the same
aggregate amount of the specific type of financial instrument with the same
delivery date. If the price of the initial sale of the futures contract exceeds
the price of the offsetting purchase, the seller is paid the 
    

                                      -20-


<PAGE>   503

   
difference and realizes a gain. Similarly, the closing out of a futures contract
purchase is effected by the purchaser's entering into a futures contract sale.
If the offsetting sale price exceeds the purchase price, the purchaser realizes
a gain, and if the purchase price exceeds the offsetting sale price, the
purchaser realizes a loss.

         Unlike when a Fund purchases or sells a security, no price is paid or
received by the Fund upon the purchase or sale of a futures contract, although
the Fund is required to deposit with its custodian in a segregated account in
the name of the futures broker an amount of cash and/or U.S. Government
securities. This amount is known as "initial margin." The nature of initial
margin in futures transactions is different from that of margin in security
transactions in that futures contract margin does not involve the borrowing of
funds by the Fund to finance the transactions. Rather, initial margin is in the
nature of a performance bond or good faith deposit on the contract that is
returned to the Fund upon termination of the futures contract, assuming all
contractual obligations have been satisfied. Futures contracts also involve
brokerage costs.

         Subsequent payments, called "variation margin," to and from the broker
(or the custodian) are made on a daily basis as the price of the underlying
security fluctuates, making the long and short positions in the futures contract
more or less valuable, a process known as "marking to market."

         A Fund may elect to close some or all of its futures positions at any
time prior to their expiration. The purpose of making such a move would be to
reduce or eliminate the hedge position then currently held by the Fund. A Fund
may close its positions by taking opposite positions which will operate to
terminate the Fund's position in the futures contracts. Final determinations of
variation margin are then made, additional cash is required to be paid by or
released to the Fund, and the Fund realizes a loss or a gain.  Such closing 
transactions involve additional commission costs.

         24. Options on Securities' Futures Contracts. A Fund will enter into
written options on securities' futures contracts only when in compliance with
the SEC's requirements, cash or equivalents equal in value to the securities'
value (less any applicable margin deposits) have been deposited in a segregated
account of the Fund's custodian. A Fund may purchase and write call and put
options on the futures contracts it may buy or sell and enter into closing
transactions with respect to such options to terminate existing positions. A
Fund may use such options on futures contracts in lieu of writing options
directly on the underlying securities or purchasing and selling the underlying
futures contracts. Such options generally operate in the same manner as options
purchased or written directly on the underlying investments.

         As with options on securities, the holder or writer of an option may
terminate his or her position by selling or purchasing an offsetting option.
There is no guarantee that such closing transactions can be effected.
    


                                     -21-


<PAGE>   504




   
         A Fund will be required to deposit initial margin and maintenance
margin with respect to put and call options on futures contracts written by it
pursuant to brokers' requirements similar to those described above. Aggregate
initial margin deposits for futures contracts (including futures contracts on
securities, indices and currency) and premiums paid for related options may not
exceed 5% of a Fund's total assets.

         25. Risk of Transactions in Securities' Futures Contracts and Related
Options. Successful use of securities' futures contracts by a Fund is subject to
the ability of the Advisor or, where applicable, the Sub-Advisor to predict
correctly movements in the direction of interest rates and other factors
affecting securities markets.

         Compared to the purchase or sale of futures contracts, the purchase of
call or put options on futures contracts involves less risk to a Fund because
the maximum amount at risk is the premium paid for the options (plus transaction
costs). However, there may be circumstances when the purchase of a call or put
option on a futures contract would result in a loss to a Fund when the purchase
or sale of a futures contract would not, such as when there is no movement in
the price of the hedged investments. The writing of an option on a futures
contract involves risks similar to those risks relating to the sale of futures
contracts.

         There is no assurance that higher than anticipated trading activity or
other unforeseen events will not, at times, render certain market clearing
facilities inadequate, and thereby result in the institution by exchanges of
special procedures which may interfere with the timely execution of customer
orders.

         To reduce or eliminate a hedge position held by a Fund, the Fund may
seek to close out a position. The ability to establish and close out positions
will be subject to the development and maintenance of a liquid secondary market.
It is not certain that this market will develop or continue to exist for a
particular futures contract. Reasons for the absence of a liquid secondary
market on an exchange include the following: (i) there may be insufficient
trading interest in certain contracts or options; (ii) restrictions may be
imposed by an exchange on opening transactions or closing transactions or both;
(iii) trading halts, suspensions or other restrictions may be imposed with
respect to particular classes or series of contracts or options, or underlying
securities; (iv) unusual or unforeseen circumstances may interrupt normal
operations on an exchange; (v) the facilities of an exchange or a clearing
corporation may not at all times be adequate to handle current trading volume;
or (vi) one or more exchanges could, for economic or other reasons, decide or be
compelled at some future date to discontinue the trading of contracts or options
(or a particular class or series of contracts or options), in which event the
secondary market on that exchange (or in the class or series of contracts or
options) would cease to exist, although outstanding contracts or options on the
exchange that had 
    


                                      -22-


<PAGE>   505

   
been issued by a clearing corporation as a result of trades on that exchange
would continue to be exercisable in accordance with their terms.

         26. Index Futures Contracts. A Fund may enter into stock index futures
contracts, debt index futures contracts, or other index futures contracts
appropriate to its objective, and may purchase and sell options on such index
futures contracts. A Fund will not enter into any index futures contract for the
purpose of speculation, and will only enter into contracts traded on securities
exchanges with standardized maturity dates.

         An index futures contract is a bilateral agreement pursuant to which
two parties agree to take or make delivery of an amount of cash equal to a
specified dollar amount times the difference between the index value at the
close of trading of the contracts and the price at which the futures contract is
originally struck. No physical delivery of the securities comprising the index
is made; generally contracts are closed out prior to the expiration date of the
contract. No price is paid upon entering into index futures contracts. When a
Fund purchases or sells an index futures contract, it is required to make an
initial margin deposit in the name of the futures broker and to make variation
margin deposits as the value of the contract fluctuates, similar to the deposits
made with respect to futures contracts on securities. Positions in index futures
contracts may be closed only on an exchange or board of trade providing a
secondary market for such index futures contracts. The value of the contract
usually will vary in direct proportion to the total face value.

         A Fund's ability to effectively utilize index futures contracts depends
on several factors. First, it is possible that there will not be a perfect price
correlation between the index futures contracts and their underlying index.
Second, it is possible that a lack of liquidity for index futures contracts
could exist in the secondary market, resulting in the Fund's inability to close
a futures position prior to its maturity date. Third, the purchase of an index
futures contract involves the risk that the Fund could lose more than the
original margin deposit required to initiate a futures transaction. In order to
avoid leveraging and related risks, when a Fund purchases an index futures
contract, it will collateralize its position by depositing an amount of cash or
cash equivalents, equal to the market value of the index futures positions held,
less margin deposits, in a segregated account with the Fund's custodian.
Collateral equal to the current market value of the index futures position will
be maintained only a daily basis.

         The extent to which a Fund may enter into transactions involving index
futures contracts may be limited by the Internal Revenue Code's requirements for
qualification as a regulated investment company and the Funds' intention to
qualify as such.

         27. Options on Index Futures Contracts. Options on index futures
contracts are similar to options on securities except that options on index
futures contracts gives the purchaser the right, in return for the premium paid,
to assume a position in an index 
    

                                      -23-


<PAGE>   506





   
futures contract (a long position if the option is a call and a short position
if the option is a put), at a specified exercise price at any time during the
period of the option. Upon exercise of the option, the delivery of the futures
position by the writer of the option to the holder of the option will be
accompanied by delivery of the accumulated balance in the writer's futures
margin account which represents the amount by which the market price of the
index futures contract, at exercise, exceeds (in the case of a call) or is less
than (in the case of a put) the exercise price of the option on the index
futures contract. If an option is exercised on the last trading day prior to
the expiration date of the option, the settlement will be made entirely in cash
equal to the difference between the exercise price of the option and the
closing level of the index on which the future is based on the expiration date.
Purchasers of options who fail to exercise their options prior to the exercise
date suffer a loss of the premium paid.

         28. U.S. Dollar Denominated Obligations of Securities of Foreign
Issuers. Certain of the Funds may invest in U.S. dollar denominated obligations
of securities of foreign issuers. Permissible investments may consist of
obligations of foreign branches of U.S. banks and foreign or domestic branches
of foreign banks, including European Certificates of Deposit, European Time
Deposits, Canadian Time Deposits and Yankee Certificates of Deposits, and
investments in Canadian Commercial Paper, foreign securities and Europaper. In
addition, the Equity Funds, the Government Securities Fund and Convertible
Securities Fund may invest in American Depositary Receipts. These instruments
may subject the Fund to investment risks that differ in some respects from those
related to investments in obligations of U.S. domestic issuers. Such risks
include future adverse political and economic developments, the possible
imposition of withholding taxes on interest or other income, possible seizure,
nationalization, or expropriation of foreign deposits, the possible
establishment of exchange controls or taxation at the source, greater
fluctuations in value due to changes in exchange rates, or the adoption of other
foreign governmental restrictions which might adversely affect the payment of
principal and interest on such obligations. Such investments may also entail
higher custodial fees and sales commissions than domestic investments. Foreign
issuers of securities or obligations are often subject to accounting treatment
and engage in business practices different from those respecting domestic
issuers of similar securities or obligations. Foreign branches of U.S. banks and
foreign banks may be subject to less stringent reserve requirements than those
applicable to domestic branches of U.S. banks.

         29. Foreign Currency Transactions. Under normal market conditions, the
International Equity Fund may engage in foreign currency exchange transactions
to project against uncertainty in the level of future exchange rates. The
International Equity Fund expects to engage in foreign currency exchange
transactions in connection with the purchase and sale of portfolio securities
("transaction hedging"), and to protect the value of specific portfolio
positions ("position hedging"). The Fund may purchase or sell a foreign currency
on a spot (or cash) basis at the prevailing spot rate in connection with the
settlement of transactions in portfolio securities denominated in that foreign
currency, 
    
                                      -24-


<PAGE>   507

   
and may also enter into contracts to purchase or sell foreign currencies at a
future date ("forward contracts") and purchase or sell foreign currency futures
contracts ("futures contracts"). The Fund may also purchase domestic and foreign
exchange-listed and over-the-counter call and put options on foreign currencies
and futures contracts. Hedging transactions involve costs and may result in
losses, and the Fund's ability to engage in hedging and related options
transactions may be limited by tax considerations.

         30. Transaction Hedging. When it engages in transaction hedging, the
International Equity Fund enters into foreign currency transactions with respect
to specific receivables or payables of the International Equity Fund generally
arising in connection with the purchase or sale of its portfolio securities. The
International Equity Fund will engage in transaction hedging when it desires to
"lock in" the U.S. dollar price of a security it has agreed to purchase or sell,
or the U.S. dollar equivalent of a dividend or interest payment in a foreign
currency. By transaction hedging, the Fund will attempt to protect itself
against a possible loss resulting from an adverse change in the relationship
between the U.S. dollar and the applicable foreign currency during the period
between the date on which the security is purchased or sold, or on which the
dividend or interest payment is declared, and the date on which such payments
are made or received.

         Although there is no current intention to do so, the International
Equity Fund reserves the right to purchase and sell foreign currency futures
contracts which are traded in the United States and are subject to regulation by
the CFTC.

         For transaction hedging purposes the International Equity Fund may also
purchase exchange-listed call and put options on foreign currency futures
contracts and on foreign currencies. A put option on a futures contract gives
the International Equity Fund the right to assume a short position in the
futures contract until expiration of the option. A put option on currency gives
the International Equity Fund the right to sell a currency at an exercise price
until the expiration of the option. A call option on a futures contract gives
the Fund the right to assume a long position in the futures contract until the
expiration of the option. A call option on currency gives the Fund the right to
purchase a currency at the exercise price until the expiration of the option.

         31. Position Hedging. When it engages in position hedging, the
International Equity Fund enters into foreign currency exchange transactions to
protect against a decline in the values of the foreign currencies in which its
portfolio securities are denominated (or an increase in the value of currency
for securities which the Sub-Advisor expects to purchase, when the Fund holds
cash or short-term investments). In connection with the position hedging, the
Fund may purchase or sell foreign currency forward contracts or foreign currency
on a spot basis.
    

                                      -25-
<PAGE>   508

   
         The precise matching of the amounts of foreign currency exchange
transactions and the value of the portfolio securities involved will not
generally be possible since the value of such securities in foreign currencies
will change as a consequence of market movements in the value of those
securities between the dates the currency exchange transactions are entered into
and the dates they mature.

         It is impossible to forecast with precision the market value of
portfolio securities at the expiration or maturity of a forward contract or
futures contract. Accordingly, it may be necessary for the International Equity
Fund to purchase additional foreign currency on the spot market (and bear the
expense of such purchase) if the market value of the security or securities
being hedged is less than the amount of foreign currency the Fund is obligated
to deliver and if a decision is made to sell the security or securities and make
delivery of the foreign currency. Conversely, it may be necessary to sell on the
spot market some of the foreign currency received upon the sale of the portfolio
security or securities if the market value of such security or securities
exceeds the amount of foreign currency the International Equity Fund is
obligated to deliver.

         Transaction and position hedging do not eliminate fluctuations in the
underlying prices of the securities which the International Equity Fund owns or
expects to purchase or sell. They simply establish a rate of exchange which one
can achieve at some future point in time. Additionally, although these
techniques tend to minimize the risk of loss due to a decline in the value of
the hedged currency, they tend to limit any potential gain which might result
from the increase in the value of such currency.

         32. Currency Forward and Futures Contracts. A forward contract involves
an obligation to purchase or sell a specific currency at a future date, which
may be any fixed number of days from the date of the contract as agreed by the
parties, at a price set at the time of the contract. In the case of a cancelable
forward contract, the holder has the unilateral right to cancel the contract at
maturity by paying a specified fee. Forward contracts are trades in the
interbank markets conducted directly between currency traders (usually large
commercial banks) and their customers. A forward contract generally has no
deposit requirement, and no commissions are charged at any stage for trades.

         A futures contract is a standardized contract for the future delivery
of a specified amount of a foreign currency at a future date at a price set at
the time of the contract. Futures contracts are designed by and traded on
exchanges. The Fund would enter into futures contracts solely for hedging or
other appropriate risk management purposes as defined in the controlling
regulations.

         Forward contracts differ from futures contracts in certain respects.
For example, the maturity date of a forward contract may be any fixed number of
days from the date of the contract agreed upon by the parties, rather than a 
predetermined date in a given month. Forward contracts may be in any amounts 
agreed upon by the parties rather
    



                                      -26-
<PAGE>   509

   
than predetermined amounts. Also, forward contracts are traded directly between
currency traders so that no intermediary is required. A forward contract
generally requires no margin or other deposit.

         At the maturity of a forward or futures contract, the Fund may either
accept or make delivery of the currency specified in the contract, or at or
prior to maturity enter into a closing transaction involving the purchase or
sale of an offsetting contract. Closing transactions with respect to forward
contracts are usually effected with the currency trader who is a party to the
original forward contract. Closing transactions with respect to futures
contracts are effected on a commodities exchange; a clearing corporation
associated with the exchange assumes responsibility for closing out such
contracts.

         Positions in the futures contracts may be closed out only on an
exchange or board of trade which provides a secondary market in such contracts.
Although the Fund intends to purchase or sell futures contracts only on
exchanges or boards of trade where there appears to be an active secondary
market, there is no assurance that a secondary market on an exchange or board of
trade will exist for any particular contract or at any particular time. In such
event, it may not be possible to close a futures position and, in the event of
adverse price movements, the Fund would continue to be required to make daily
cash payments of variation margin, as described below.

         33. General Characteristics of Currency Futures Contracts. When the
Fund purchases or sells a futures contract, it is required to deposit with its
custodian an amount of cash or U.S. Treasury bills up to 5% of the amount of the
futures contract. This amount is known as "initial margin." The nature of
initial margin is different from that of margin in security transactions in that
it does not involve borrowing money to finance transactions. Rather, initial
margin is similar to a performance bond or good faith deposit that is returned
to the International Equity Fund upon termination of the contract, assuming the
Fund satisfies its contractual obligation.

         Subsequent payments to and from the broker occur on a daily basis in a
process known as "marking to market." These payments are called "variation
margin," and are made as the value of the underlying futures contract
fluctuates. For example, when the Fund sells a futures contract and the price of
the underlying currency rises above the delivery price, the International Equity
Fund's position declines in value. The Fund then pays a broker a variation
margin payment equal to the difference between the delivery price of the futures
contract and the market price of the currency underlying the futures contract.
Conversely, if the price of the underlying currency falls below the delivery
price of the contract, the Fund's futures position increases in value. The
broker then must make a variation margin payment equal to the difference between
the delivery price of the futures contract and the market price of the currency
underlying the futures contract.
    

                                      -27-
<PAGE>   510

   
         When the International Equity Fund terminates a position in a futures
contract, a final determination of variation margin is made, additional cash is
paid by or to the International Equity Fund, and the International Equity Fund
realizes a loss or gain. Such closing transactions involve additional commission
costs.

         34. Foreign Currency Options. Options on foreign currencies operate
similarly to options on securities, and are traded primarily in the
over-the-counter market, although options on foreign currencies have recently
been listed on several exchanges. Such options will be purchased or written only
when the Fund's Sub-Advisor believes that a liquid secondary market exists for
such options. There can be no assurance that a liquid secondary market will
exist for a particular option at any specific time. Options on foreign
currencies are affected by all of those factors which influence foreign exchange
rates and investments generally.

         The value of a foreign currency option is dependent upon the value of
the foreign currency and the U.S. dollar, and may have no relationship to the
investment merits of a foreign security. Because foreign currency transactions
occurring in the interbank market involve substantially larger amounts than
those that may be involved in the use of foreign currency options, investors may
be disadvantaged by having to deal in an odd lot market (generally consisting of
transactions of less than $1 million) for the underlying foreign currencies at
prices that are less favorable than for round lots.

         There is no systematic reporting of last sale information for foreign
currencies, and there is no regulatory requirement that quotations available
through dealer or other market sources be firm or revised on a timely basis.
Available quotation information is generally representative of very large
transactions in the interbank market, and thus may not reflect relatively
smaller transactions (less than $1 million), where rates may be less favorable.
The interbank market in foreign currencies is a global, around-the-clock market.

         35. Foreign Currency Conversion. Although foreign exchange dealers do
not charge a fee for currency conversion, the do realize a profit based on the
difference (the "spread") between prices at which they are buying and selling
various currencies. Thus, a dealer may offer to sell a foreign currency to an
International Equity Fund at one rate, while offering a lesser rate of exchange
should the Fund desire to resell that currency to the dealer.

         36. Standard & Poor's Depositary Receipts ("SPDRs"). SPDRs are
interests in a unit investment trust ("UIT") that may be obtained from the UIT
or purchased in the secondary market as SPDRs are listed on the American Stock
Exchange.
    

                                      -28-
<PAGE>   511

   
         The UIT will issue SPDRs in aggregations of 50,000 known as "Creation
Units" in exchange for a "Portfolio Deposit" consisting of (a) a portfolio of
securities substantially similar to the component securities ("Index
Securities") of the Standard & Poor's 500 Composite Stock Price Index (the "S&P
Index"), (b) a cash payment equal to a pro rata portion of the dividends accrued
on the UIT's portfolio securities since the last dividend payment by the UIT,
net of expenses and liabilities, and (c) a cash payment or credit ("Balancing
Amount") designed to equalize the net asset value of the S&P Index and the net
asset value of a Portfolio Deposit.

         SPDRs are not individually redeemable, except upon termination of the
UIT. To redeem, the portfolio must accumulate enough SPDRs to reconstitute a
Creation Unit. The liquidity of small holdings of SPDRs, therefore, will depend
upon the existence of a secondary market. Upon redemption of a Creation Unit,
the portfolio will receive Index Securities and cash identical to the Portfolio
Deposit required of an investor wishing to purchase a Creation Unit that day.

         The price of SPDRs is derived and based upon the securities held by the
UIT. Accordingly, the level of risk involved in the purchase or sale of a SPDR
is similar to the risk involved in the purchase or sale of traditional common
stock, with the exception that the pricing mechanism for SPDRs is based on a
basket of stocks. Disruptions in the markets for the securities underlying SPDRs
purchased or sold by the Portfolio could result in losses on SPDRs. Trading in
SPDRs involves risks similar to those risks, described above under "Options,"
involved in the writing of options on securities.

         37.  High Yield Securities

         The Convertible Securities Fund may invest in lower rated securities.
Fixed income securities are subject to the risk of an issuer's ability to meet
principal and interest payments on the obligation (credit risk), and may also be
subject to price volatility due to such factors as interest rate sensitivity,
market perception of the creditworthiness of the issuer and general market
liquidity (market risk). Lower rated or unrated (i.e., high yield) securities
are more likely to react to developments affecting market and credit risk than
are more highly rated securities, which primarily react to movements in the
general level of interest rates. The market values of fixed-income securities
tend to vary inversely with the level of interest rates. Yields and market
values of high yield securities will fluctuate over time, reflecting not only
changing interest rates but the market's perception of credit quality and the
outlook for economic growth. When economic conditions appear to be
deteriorating, medium to lower rated securities may decline in value due to
heightened concern over credit quality, regardless of the prevailing interest
rates. Investors should carefully consider the relative risks of investing in
high yield securities and understand that such securities are not generally
meant for short-term investing.
    

                                      -29-
<PAGE>   512

   
         The high yield market is relatively new and its growth has paralleled a
long period of economic expansion and an increase in merger, acquisition and
leveraged buyout activity. Adverse economic developments can disrupt the market
for high yield securities, and severely affect the ability of issuers,
especially highly leveraged issuers, to service their debt obligations or to
repay their obligations upon maturity which may lead to a higher incidence of
default on such securities. In addition, the secondary market for high yield
securities, which is concentrated in relatively few market makers, may not be as
liquid as the secondary market for more highly rated securities. As a result,
the Convertible Securities Fund could find it more difficult to sell these
securities or may be able to sell the securities only at prices lower than if
such securities were widely traded. Furthermore, the Trust may experience
difficulty in valuing certain securities at certain times. Prices realized upon
the sale of such lower rated or unrated securities, under these circumstances,
may be less than the prices used in calculating the Convertible Securities
Fund's net asset value.

         Lower rated or unrated debt obligations also present risks based on
payment expectations. If an issuer calls an obligation for redemption, the
Convertible Securities Fund may have to replace the security with a lower
yielding security, resulting in a decreased return for investors. If the
Convertible Securities Fund experiences unexpected net redemptions, it may be
forced to sell its higher rated securities, resulting in a decline in the
overall credit quality of the Convertible Securities Fund's investment portfolio
and increasing the exposure of the Convertible Securities Fund to the risks of
high yield securities.

         The Convertible Securities Fund may choose, at its expense or in
conjunction with others, to pursue litigation or otherwise exercise its rights
as a security holder to seek to protect the interest of security holders if it
determines this to be in the interest of the Convertible Securities Fund's
Shareholders.

         38. High Quality Investments with Regard to the Money Market Funds. As
noted in the Prospectuses for the Money Market Funds, each such Fund may invest
only in obligations determined by the Advisor to present minimal credit risks
under guidelines adopted by HighMark's Board of Trustees.

         With regard to the Diversified Money Market Fund and the California
Tax-Free Money Market Fund, investments will be limited to "Eligible Securities"
that (i) in the case of the Diversified Money Market Fund, include those
obligations that, at the time of purchase, possess the highest short-term rating
from at least one NRSRO (the Diversified Money Market Fund may also invest up to
5% of its net assets in obligations that, at the time of purchase, possess one
of the two highest short-term ratings from at least one NRSRO, and in
obligations that do not possess a short-term rating (i.e., are unrated) but are
determined by the Advisor to be of comparable quality to the rated instruments
eligible for purchase by the Fund under guidelines adopted by the Board of
Trustees) and 
    





                                      -30-
<PAGE>   513

   
(ii) in the case of the California Tax-Free Money Market Fund, include those
obligations that, at the time of purchase, possess one of the two highest
short-term ratings by at least one NRSRO or do not possess a short-term rating
(i.e., are unrated) but are determined by the Advisor to be of comparable
quality to the rated obligations eligible for purchase by the Fund under
guidelines adopted by the Board of Trustees.

         A security subject to a tender or demand feature will be considered an
Eligible Security only if both the demand feature and the underlying security
possess a high quality rating or, if such do not possess a rating, are
determined by the Advisor to be of comparable quality; provided, however, that
where the demand feature would be readily exercisable in the event of a default
in payment of principal or interest on the underlying security, the obligation
may be acquired based on the rating possessed by the demand feature or, if the
demand feature does not possess a rating, a determination of comparable quality
by the Advisor. In applying the above-described investment policies, a security
that has not received a short-term rating will be deemed to possess the rating
assigned to an outstanding class of the issuer's short-term debt obligations if
determined by the Advisor to be comparable in priority and security to the
obligation selected for purchase by the Fund, or, if not available, the issuer's
long-term obligations, but only in accordance with the requirements of Rule
2a-7. A security that at the time of issuance had a maturity exceeding 397 days
but, at the time of purchase, has a remaining maturity of 397 days or less, is
considered an Eligible Security if it possesses a long-term rating, within the
two highest rating categories.

         Eligible Securities include First Tier Securities and Second Tier
Securities. First Tier Securities include those that possess at least one rating
in the highest category and, if the securities do not possess a rating, those
that are determined to be of comparable quality by the Advisor pursuant to
guidelines adopted by the Board of Trustees. Second Tier Securities are all
other Eligible Securities.

         The Diversified Money Market Fund will not invest more than 5% of its
total assets in the First Tier Securities of any one issuer, except that the
Fund may invest up to 25% of its total assets in First Tier Securities of a
single issuer for a period of up to three business days. (This three day "safe
harbor" provision will not be applicable to the California Tax-Free Money Market
Fund, because single state funds are specifically excluded from this Rule 2a-7
provision.) In addition, the Diversified Money Market Fund may not invest more
than 5% of its total assets in Second Tier Securities, with investments in the
Second Tier Securities of any one issuer further limited to the greater of 1% of
the Fund's total assets or $1.0 million. If a percentage limitation is satisfied
at the time of purchase, a later increase in such percentage resulting from a
change in the Diversified Money Market Fund's net asset value or a subsequent
change in a security's qualification as a First Tier or Second Tier Security
will not constitute a violation of the limitation. In addition, there is no
limit on the percentage of the Diversified Money Market Fund's assets that may
be invested in obligations issued or guaranteed by the U.S.
    



                                      -31-
<PAGE>   514

   
Government, its agencies, or instrumentalities and repurchase agreements fully
collateralized by such obligations.

         Under the guidelines adopted by HighMark's Board of Trustees, in
accordance with Rule 2a-7 under the Investment Company Act of 1940 (the "1940
Act"), when in the best interests of the Shareholders, the Advisor may be
required to promptly take appropriate action with respect to an obligation held
in a Fund's portfolio in the event of certain developments that indicate a
diminishment of the instrument's credit quality, such as where an NRSRO
downgrades an obligation below the second highest rating category, or in the
event of a default relating to the financial condition of the issuer.

         The Appendix to this Statement of Additional Information identifies
each NRSRO that may be utilized by the Advisor with regard to portfolio
investments for the Funds and provides a description of relevant ratings
assigned by each such NRSRO. A rating by a NRSRO may be utilized only where the
NRSRO is neither controlling, controlled by, or under common control with the
issuer of, or any issuer, guarantor, or provider of credit support for, the
instrument.

         Illiquid Securities. Each Fund has adopted a non-fundamental policy
(which may be changed without shareholder approval) prohibiting the Fund from
investing more than 15% (in the case of each of the Money Market Funds, not more
than 10%) of its total assets in "illiquid" securities, which include securities
with legal or contractual restrictions on resale or for which no readily
available market exists but exclude such securities if resalable pursuant to
Rule 144A under the Securities Act ("Rule 144A Securities"). Pursuant to this
policy, the Funds may purchase Rule 144A Securities only in accordance with
liquidity guidelines established by the Board of Trustees of HighMark and only
if the investment would be permitted under applicable state securities laws.

         Restricted Securities. Each Fund has adopted a nonfundamental policy
(which may be changed without Shareholder approval) prohibiting the Fund from
investing more than 25% of its total assets in restricted securities. Restricted
securities are securities that may not be sold to the public without
registration under the Securities Act of 1933 ("1933 Act"). Restricted
Securities may be liquid or illiquid. The Advisor will determine the liquidity
of restricted securities in accordance with guidelines established by HighMark's
Board of Trustees. Restricted securities purchased by the Funds may include Rule
144A securities and commercial paper issued in reliance upon the "private
placement" exemption from registration under Section 4(2) of the 1933 Act
(whether or not such paper is a Rule 144A security).
    


                                      -32-
<PAGE>   515

                             INVESTMENT RESTRICTIONS

         Unless otherwise indicated, the following investment restrictions are
fundamental and, as such, may be changed with respect to a particular Fund only
by a vote of a majority of the outstanding Shares of that Fund (as defined
below). Except with respect to a Fund's restriction governing the borrowing of
money, if a percentage restriction is satisfied at the time of investment, a
later increase or decrease in such percentage resulting from a change in asset
value will not constitute a violation of the restriction.

   
 100% U.S. Treasury Money Market Fund

                  The 100% U.S. Treasury Money Market Fund may not purchase
         securities other than short-term obligations issued or guaranteed as to
         payment of principal and interest by the full faith and credit of the
         U.S. Treasury.

Each of the Growth Fund, the Income Equity Fund, the Balanced Fund, the Bond 
Fund, the Diversified Money Market Fund, the U.S. Government Money Market Fund,
and the 100% U.S. Treasury Money Market Fund  may not:

                  1. Purchase securities on margin (except that, with respect to
         the Growth Fund, the Income Equity Fund, the Balanced Fund and the Bond
         Fund only, such Funds may make margin payments in connection with
         transactions in options and financial and currency futures contracts),
         sell securities short, participate on a joint or joint and several
         basis in any securities trading account, or underwrite the securities
         of other issuers, except to the extent that a Fund may be deemed to be
         an underwriter under certain securities laws in the disposition of
         "restricted securities" acquired in accordance with the investment
         objectives and policies of such Fund;

                  2. Purchase or sell commodities, commodity contracts
         (excluding, with respect to the Growth Fund, the Income Equity Fund,
         the Balanced Fund, and the Bond Fund , options and financial and
         currency futures contracts), oil, gas or mineral exploration leases or
         development programs, or real estate (although investments by the
         Growth Fund, the Income Equity Fund, the Balanced Fund, the Bond Fund,
         and the Diversified Money Market Fund in marketable securities of
         companies engaged in such activities and investments by the Growth
         Fund, the Income Equity Fund, the Balanced Fund, and the Bond Fund in
         securities secured by real estate or interests therein, are not hereby
         precluded to the extent the investment is appropriate to such Fund's
         investment objective and policies);
    

                  3.  Invest in any issuer for purposes of exercising control or
         management;


                                      -33-
<PAGE>   516

   
               4. Purchase or retain securities of any issuer if the officers or
          Trustees of HighMark or the officers or directors of its investment
          advisor owning beneficially more than one-half of 1% of the securities
          of such issuer together own beneficially more than 5% of such
          securities;
    

               5. Borrow money or issue senior securities, except that a Fund
          may borrow from banks or enter into reverse repurchase agreements for
          temporary emergency purposes in amounts up to 10% of the value of its
          total assets at the time of such borrowing; or mortgage, pledge, or
          hypothecate any assets, except in connection with permissible
          borrowings and in amounts not in excess of the lesser of the dollar
          amounts borrowed or 10% of the value of the Fund's total assets at the
          time of its borrowing. A Fund will not invest in additional securities
          until all its borrowings (including reverse repurchase agreements)
          have been repaid. For purposes of this restriction, the deposit of
          securities and other collateral arrangements with respect to options
          and financial and currency futures contracts, and payments of initial
          and variation margin in connection therewith, are not considered a
          pledge of a Fund's assets; and

   
The Diversified Money Market Fund, the U.S. Government  Money Market Fund and
the 100% U.S. Treasury  Money Market Fund may not:
    

               1. Buy common stocks or voting securities, or state, municipal or
          private activity bonds;

               2. Invest in securities of other investment companies, except as
          they may be acquired as part of a merger, consolidation,
          reorganization, or acquisition of assets;

               3. Write or purchase put or call options; or

               4. Invest more than 10% of total assets in the securities of
          issuers that together with any predecessors have a record of less than
          three years' continuous operation.

   
The Growth Fund, the Income Equity Fund, the Balanced Fund, and the Bond Fund
may not:

               1. Invest in securities of other investment companies except as
          they may be acquired as part of a merger, consolidation,
          reorganization, or acquisition of assets, provided, however, that each
          of the Funds may purchase securities of a money market fund, if,
          immediately after such purchase, the acquiring Fund does not own in
          the aggregate (i) more than 3% of the acquired
    

                                      -34-
<PAGE>   517

          company's outstanding voting securities, (ii) securities issued by the
          acquired company having an aggregate value in excess of 5% of the
          value of the total assets of the acquiring Fund, or (iii) securities
          issued by the acquired company and all other investment companies
          (other than treasury stock of the acquiring Fund) having an aggregate
          value in excess of 10% of the value of the acquiring Fund's total
          assets; and

   
The California Tax-Free  Money Market Fund may not:

               1. Purchase or sell real estate; provided, however, that the Fund
          may, to the extent appropriate to its investment objective, purchase
          Municipal Securities secured by real estate or interests therein or
          securities issued by companies investing in real estate or interests
          therein;

               2. Purchase securities on margin, make short sales of securities
          or maintain a short position;

               3.  Underwrite the securities of other issuers;

               4. Purchase securities of companies for the purpose of exercising
          control or management;

               5. Invest in private activity bonds where the payment of
          principal and interest are the responsibility of a company (including
          its predecessors) with less than three years of continuous operation;

               6. Purchase or sell commodities or commodity contracts, or invest
          in oil, gas or mineral exploration leases or development programs;
          provided, however, the Fund may, to the extent appropriate to the
          Fund's investment objective, purchase publicly traded obligations of
          companies engaging in whole or in part in such activities;

               7. Acquire any other investment company or investment company
          security except in connection with a merger, consolidation,
          reorganization or acquisition of assets;

               8. Borrow money or issue senior securities, except that the Fund
          may borrow from banks or enter into reverse repurchase agreements for
          temporary emergency purposes in amounts up to 10% of the value of its
          total assets at the time of such borrowing; or mortgage, pledge, or
          hypothecate any assets, except in connection with permissible
          borrowings and in amounts not in excess of the lesser of the dollar
          amounts borrowed or 10% of the value of the
    



                                      -35-
<PAGE>   518

   
          Fund's total assets at the time of its borrowing. The Fund will not
          invest in additional securities until all its borrowings (including
          reverse repurchase agreements) have been repaid;

               9. Write or sell puts, calls, straddles, spreads, or combinations
          thereof, except that the Fund may acquire puts with respect to
          Municipal Securities in its portfolio and sell the puts in conjunction
          with a sale of the underlying Municipal Securities;

               10. Acquire a put, if, immediately after the acquisition, more
          than 5% of the total amortized cost value of the Fund's assets would
          be subject to puts from the same institution (except that (i) up to
          25% of the value of the Fund's total assets may be subject to puts
          without regard to the 5% limitation and (ii) the 5% limitation is
          inapplicable to puts that, by their terms, would be readily
          exercisable in the event of a default in payment of principal or
          interest on the underlying securities). In applying the
          above-described limitation, the Fund will aggregate securities subject
          to puts from any one institution with the Fund's investments, if any,
          in securities issued or guaranteed by that institution. In addition,
          for the purpose of this investment restriction and investment
          restriction No. 11 below, a put will be considered to be from the
          party to whom the Fund will look for payment of the exercise price;

               11. Acquire a put that, by its terms, would be readily
          exercisable in the event of a default in payment of principal and
          interest on the underlying security or securities if, immediately
          after the acquisition, the amortized cost value of the security or
          securities underlying the put, when aggregated with the amortized cost
          value of any other securities issued or guaranteed by the issuer of
          the put, would exceed 10% of the total amortized cost value of the
          Fund's assets; and

               12. Invest in securities of other investment companies except as
          they may be acquired as part of a merger, consolidation,
          reorganization, or acquisition of assets, provided, however, that the
          Fund may purchase securities of a tax-exempt money market fund if,
          immediately after such purchase, the acquiring Fund does not own in
          the aggregate (i) more than 3% of the acquired company's outstanding
          voting securities, (ii) securities issued by the acquired company
          having an aggregate value in excess of 5% of the value of the total
          assets of the acquiring Fund, or (iii) securities issued by the
          acquired company and all other investment companies (other than
          treasury stock of the acquiring Fund) having an aggregate value in
          excess of 10% of the value of the acquiring Fund's total assets.
    


                                      -36-
<PAGE>   519


   
Each of the Value Momentum Fund, the Blue Chip Growth Fund, the Emerging Growth
Fund, the International Equity Fund, the Intermediate-Term Bond Fund, the
Government Securities Fund, the Convertible Securities Fund, and the California
Intermediate Tax-Free Bond Fund:

         1.       May purchase securities of any issuer only when consistent
                  with the maintenance of its status as a diversified company
                  under the Investment Company Act of 1940, or the rules or
                  regulations thereunder, as such statute, rules or regulations
                  may be amended from time to time.

         2.       May not concentrate investments in a particular industry or
                  group of industries, or within any one state (except that the
                  limitation as to investments in any one state or its political
                  subdivision shall not apply to the California Intermediate
                  Tax-Free Bond Fund), as concentration is defined under the
                  Investment Company Act of 1940, or the rules or regulations
                  thereunder, as such statute, rules or regulations may be
                  amended from time to time.

         3.       May issue senior securities to the extent permitted by the
                  Investment Company Act of 1940, or the rules or regulations
                  thereunder, as such statute, rules or regulations may be
                  amended from time to time.

         4.       May lend or borrow money to the extent permitted by the
                  Investment Company Act of 1940, or the rules or regulations
                  thereunder, as such statute, rules or regulations may be
                  amended from time to time.

         5.       May purchase or sell commodities, commodities contracts,
                  futures contracts, or real estate to the extent permitted by
                  the Investment Company Act of 1940, or the rules or
                  regulations thereunder, as such statute, rules or regulations
                  may be amended from time to time.

         6.       May underwrite securities to the extent permitted by the
                  Investment Company Act of 1940, or the rules or regulations
                  thereunder, as such statute, rules or regulations may be
                  amended from time to time.

         7.       May pledge, mortgage or hypothecate any of its assets to the
                  extent permitted by the Investment Company Act of 1940, or the
                  rules or regulations thereunder, as such statute, rules or
                  regulations may be amended from time to time.
    

                                      -37-
<PAGE>   520

   
                  The fundamental limitations of the Value Momentum Fund, the
         Blue Chip Growth Fund, the Emerging Growth Fund, the International
         Equity Fund, the International Equity Fund, the Intermediate-Term Bond
         Fund, the Government Securities Fund, the Convertible Securities Fund,
         and the California Intermediate Tax-Free Bond Fund have been adopted to
         avoid wherever possible the necessity of shareholder meetings
         otherwise required by the 1940 Act. This recognizes the need to react
         quickly to changes in the law or new investment opportunities in the
         securities markets and the cost and time involved in obtaining
         shareholder approvals for diversely held investment companies.
         However, the Funds also have adopted nonfundamental limitations, set
         forth below, which in some instances may be more restrictive than
         their fundamental limitations. Any changes in a Fund's nonfundamental
         limitations will be communicated to the Fund's shareholders prior to
         effectiveness.

                  1940 Act Restrictions. Under the 1940 Act, and the rules,
         regulations and interpretations thereunder, a "diversified company," as
         to 75% of its totals assets, may not purchase securities of any issuer
         (other than obligations of, or guaranteed by, the U.S. Government, its
         agencies or its instrumentalities) if, as a result, more than 5% of the
         value of its total assets would be invested in the securities of such
         issuer or more than 10% of the issuer's voting securities would be held
         by the fund. "Concentration" is generally interpreted under the 1940
         Act to be investing more than 25% of net assets in an industry or group
         of industries. The 1940 Act limits the ability of investment companies
         to borrow and lend money and to underwrite securities. The 1940 Act
         currently prohibits an open-end fund from issuing senior securities, as
         defined in the 1940 Act, except under very limited circumstances.

The following investment limitations of the Value Momentum Fund, the Blue Chip
Growth Fund, the Emerging Growth Fund, the International Equity Fund, the
Intermediate-Term Bond Fund, the Government Securities Fund, the Convertible
Securities Fund, and the California Intermediate Tax-Free Bond Fund are
nonfundamental policies. Each Fund may not:

          1.   Acquire more than 10% of the voting securities of any one issuer.
               This limitation applies to only 75% of a Fund's assets.

          2.   Invest in companies for the purpose of exercising control.

          3.   Borrow money, except for temporary or emergency purposes and then
               only in an amount not exceeding one-third of the value of total
               assets and except that a Fund may borrow from banks or enter into
               reverse repurchase
    



                                      -38-
<PAGE>   521

   
               agreements for temporary emergency purposes in amounts up to 10%
               of the value of its total assets at the time of such borrowing.
               To the extent that such borrowing exceeds 5% of the value of the
               Fund's assets, asset coverage of at least 300% is required. In
               the event that such asset coverage shall at any time fall below
               300%, the Fund shall, within three days thereafter or such longer
               period as the Securities and Exchange Commission may prescribe by
               rules and regulations, reduce the amount of its borrowings to
               such an extent that the asset coverage of such borrowing shall be
               at least 300%. This borrowing provision is included solely to
               facilitate the orderly sale of portfolio securities to
               accommodate heavy redemption requests if they should occur and is
               not for investment purposes. All borrowings will be repaid before
               making additional investments and any interest paid on such
               borrowings will reduce income.

          4.   Pledge, mortgage or hypothecate assets except to secure temporary
               borrowings permitted by (3) above in aggregate amounts not to
               exceed 10% of total assets taken at current value at the time of
               the incurrence of such loan, except as permitted with respect to
               securities lending.

          5.   Purchase or sell real estate, real estate limited partnership
               interest, commodities or commodities contracts (except that the
               Government Securities Fund, the Blue Chip Growth Fund, the
               Emerging Growth Fund, the International Equity Fund, the Value
               Momentum Fund, the Intermediate-Term Bond Fund and the California
               Intermediate Tax-Free Bond Fund may invest in futures contracts
               and options on futures contracts, as disclosed in the
               prospectuses) and interest in a pool of securities that are
               secured by interests in real estate. However, subject to their
               permitted investments, any Fund may invest in companies which
               invest in real estate, commodities or commodities contracts.

          6.   Make short sales of securities, maintain a short position or
               purchase securities on margin, except that HighMark may obtain
               short-term credits as necessary for the clearance of security
               transactions.

          7.   Act as an underwriter of securities of other issuers except as it
               may be deemed an underwriter in selling a Fund security.

          8.   Issue senior securities (as defined in the Investment Company Act
               of 1940) except in connection with permitted borrowings as
               described above or as permitted by rule, regulation or order of
               the Securities and Exchange Commission.
    

                                      -39-
<PAGE>   522

   
          9.   Purchase or retain securities of an issuer if, to the knowledge
               of HighMark, an officer, trustee, partner or director of HighMark
               or the Advisor or Sub-Advisors of HighMark owns beneficially
               more than 1/2 or 1% of the shares or securities or such issuer
               and all such officers, trustees, partners and directors owning
               more than 1/2 or 1% of such shares or securities together own
               more than 5% of such shares or securities.

          10.  Invest in interest in oil, gas, or other mineral exploration or
               development programs and oil, gas or mineral leases.

         Voting Information. As used in this Statement of Additional
Information, a "vote of a majority of the outstanding Shares" of HighMark or a
particular Fund or a particular Class of Shares of HighMark or a Fund means the
affirmative vote of the lesser of (a) more than 50% of the outstanding Shares of
HighMark or such Fund or such Class, or (b) 67% or more of the Shares of
HighMark or such Fund or such Class present at a meeting at which the holders of
more than 50% of the outstanding Shares of HighMark or such Fund or such Class
are represented in person or by proxy.
    


                               PORTFOLIO TURNOVER

   
         A Fund's turnover rate is calculated by dividing the lesser of a Fund's
purchases or sales of portfolio securities for the year by the monthly average
value of the portfolio securities. The calculation excludes all securities whose
maturities at the time of acquisition were one year or less. Thus, for
regulatory purposes, the portfolio turnover rate with respect to each of the
Money Market Funds was zero percent from the commencement of their respective
operations to July 31, 1996, and is expected to remain zero percent. For
HighMark's fiscal year ended July 31, 1996, the portfolio turnover rate of the
Growth Fund was 78.58%, for the Income Equity Fund was 41.51%, for the Balanced
Fund was [12.84%] for the equity portion of its portfolio and [_____%] for the
fixed income portion of its portfolio, and for the Bond Fund was 20.88%. For
HighMark's fiscal year ended July 31, 1995, the portfolio turnover rate of the
Growth Fund was 67.91%, for the Income Equity Fund was 36.64%, for the Balanced
Fund was [20.70%] for the equity portion of its portfolio and [_____%] for the
fixed income portion of its portfolio, and for the Bond Fund was 36.20%. It is
currently estimated that the rate of portfolio turnover for each of the Value
Momentum, Blue Chip Growth, Emerging Growth, International Equity,
Intermediate-Term Bond, Government Securities, Convertible Securities and
California Intermediate Tax-Free Bond Funds will not exceed 100%. The portfolio
turnover rate may vary greatly from year to year as well as within a particular
year, and may also be affected by cash requirements for redemption of Shares
and, in the case of the California Tax-Free Money Market Fund, by requirements
that enable them to receive certain favorable tax treatment.
    


                                      -40-
<PAGE>   523

                                    VALUATION

   
         As disclosed in the Prospectuses, each Fund's net asset value per share
for purposes of pricing purchase and redemption orders is determined by the
administrator as of 1:00 p.m., Pacific Time (4:00 p.m. Eastern Time) (and 10:00
a.m. Pacific Time (1:00 p.m. Eastern Time) in the case of the Money Market
Funds) on days on which both the New York Stock Exchange and the Federal Reserve
wire system are open for business ("Business Days").
    

Valuation of the Money Market Funds

         The Money Market Funds have elected to use the amortized cost method of
valuation pursuant to Rule 2a-7 under the 1940 Act. The amortized cost method
involves valuing an instrument at its cost initially and thereafter assuming a
constant amortization to maturity of any discount or premium, regardless of the
impact of fluctuating interest rates on the market value of the instrument. This
method may result in periods during which value, as determined by amortized
cost, is higher or lower than the price a Fund would receive if it sold the
instrument. The value of securities in a Fund can be expected to vary inversely
with changes in prevailing interest rates.

   
          HighMark's Board of Trustees has undertaken to establish procedures
reasonably designed, taking into account current market conditions and a Fund's
investment objective, to stabilize the net asset value per Share of each Money
Market Fund for purposes of sales and redemptions at $l.00. These procedures
include review by the Trustees, at such intervals as they deem appropriate, to
determine the extent, if any, to which the net asset value per Share of each
Fund calculated by using available market quotations deviates from $1.00 per
Share. In the event such deviation exceeds one-half of one percent, Rule 2a-7
requires that the Board promptly consider what action, if any, should be
initiated. If the Trustees believe that the extent of any deviation from a
Fund's $1.00 amortized cost price per Share may result in material dilution or
other unfair results to new or existing investors, the Trustees will take such
steps as they consider appropriate to eliminate or reduce to the extent
reasonably practicable any such dilution or unfair results. These steps may
include selling portfolio instruments prior to maturity, shortening the average
portfolio maturity of a Fund, withholding or reducing dividends, reducing the
number of a Fund's outstanding Shares without monetary consideration, or
utilizing a net asset value per Share based on available market quotations.

Valuation of the Equity Funds and the Fixed Income Funds

         Except as noted below, investments by the Equity Funds and the Fixed
Income Funds in securities traded on a national exchange (or exchanges) are
valued based upon their last sale price on the principal exchange on which such
securities are traded. With regard to each such Fund, securities the principal
market for which is not a securities exchange are valued based upon the latest
bid price in such principal market.  Securities and other assets for which
market quotations are not readily available are valued at their fair value as
    




                                      -41-
<PAGE>   524

   
determined in good faith under consistently applied procedures established by
and under the general supervision of HighMark's Board of Trustees. With the
exception of short-term securities as described below, the value of each Fund's
investments may be based on valuations provided by a pricing service. Short-term
securities (i.e., securities with remaining maturities of 60 days or less) may
be valued at amortized cost, which approximates current value.
    


                 ADDITIONAL PURCHASE AND REDEMPTION INFORMATION

   
          Purchases and redemptions of shares of the Funds may be made on days
on which both the New York Stock Exchange and the Federal Reserve wire systems
are open for business.

          It is currently HighMark's policy to pay redemptions in cash. HighMark
retains the right, however, to alter this policy to provide for redemptions in
whole or in part by a distribution in-kind of securities held by the Funds other
than the Money Market Funds in lieu of cash. Shareholders may incur brokerage
charges on the sale of any such securities so received in payment of
redemptions. However, a Shareholder will at all times be entitled to aggregate
cash redemptions from all Funds of HighMark during any 90-day period of up to
the lesser of $250,000 or 1% of HighMark's net assets.

          HighMark reserves the right to suspend the right of redemption and/or
to postpone the date of payment upon redemption for any period on which trading
on the New York Stock Exchange is restricted, or during the existence of an
emergency (as determined by the Securities and Exchange Commission by rule or
regulation) as a result of which disposal or valuation of the Fund's securities
is not reasonably practicable, or for such other periods as the Securities and
Exchange Commission has by order permitted.  HighMark also reserves the right to
suspend sales of Shares of the Funds for any period.

          If a Fund holds portfolio securities listed on foreign exchanges which
trade on Saturdays or other customary United States national business holidays,
the portfolio will trade and the net assets of the Fund's redeemable securities
may be significantly affected on days when the investor has no access to the
Fund.
    

Additional Federal Tax Information

         Each Fund intends to qualify each year as a regulated investment
company under Subchapter M of the Internal Revenue Code of 1986, as amended (the
"Code"). In order so to qualify and to qualify for the special tax treatment
accorded regulated investment companies and their Shareholders, a Fund must,
among other things, (a) derive at least 90% of its gross income from dividends,
interest, payments with respect to certain securities loans, and gains from the
sale of stock, securities, and foreign currencies, or other income (including
but not 



                                      -42-
<PAGE>   525

limited to gains from options, futures, or forward contracts) derived with
respect to its business of investing in such stock, securities, or currencies;
(b) derive less than 30% of its gross income from the sale or other disposition
of certain assets (including stocks and securities) held for less than three
months; (c) each year distribute at least 90% of its dividends, interest
(including tax-exempt interest), certain other income and the excess, if any, of
its net short-term capital gains over its net long-term capital losses; and (d)
diversify its holdings so that, at the end of each fiscal quarter (i) at least
50% of the market value of the Fund's assets is represented by cash, cash items,
U.S. Government securities, securities of other regulated investment companies,
and other securities, limited in respect of any one issuer to a value not
greater than 5% of the value of the Fund's total assets and 10% of the
outstanding voting securities of such issuer, and (ii) not more than 25% of the
value of its assets is invested in the securities (other than those of the U.S.
Government or other regulated investment companies) of any one issuer or of two
or more issuers that the Fund controls and that are engaged in the same,
similar, or related trades or businesses. The 30% of gross income test described
above may restrict a Fund's ability to sell certain assets held (or considered
under Code rules to have been held) for less than three months.

   
         If a Fund qualifies as a regulated investment company that is accorded
special tax treatment, the Fund will not be subject to federal income tax on
income paid to its shareholders in the form of dividends (including capital gain
dividends). If a Fund failed to qualify as a regulated investment company
accorded special tax treatment in any taxable year, the Fund would be subject to
tax on its taxable income at corporate rates, and all distributions from
earnings and profits, including any distributions of net tax-exempt income and
net long-term capital gains, would be taxable to shareholders as ordinary
income.
    

         If a Fund fails to distribute in a calendar year substantially all of
its ordinary income for the year and substantially all its capital gain net
income for the one-year period ending October 31 of the year (and any retained
amount from the prior calendar year), the Fund will be subject to a
non-deductible 4% excise tax on the undistributed amounts.

   
         Any dividend declared by a Fund to Shareholders of record on a date in
October, November or December generally is deemed to have been received by its
Shareholders on December 31 of such year (and paid by the Fund on or before such
time) provided that the dividend actually is paid during January of the
following year.

         If a Fund engages in hedging transactions, including hedging
transactions in options, futures contracts, and straddles, or other similar
transactions, it will be subject to special tax rules (including mark-to-market,
straddle, wash sale, and short sale rules), the effect of which may be to
accelerate income to the Fund, defer losses to the Fund, cause adjustments in
the holding periods of the Fund's securities, or convert short-term capital
losses into long-term capital losses. These rules could therefore affect the
amount, timing and character of distributions to shareholders.
    

                                      -43-
<PAGE>   526

   
         Under the 30% of gross income test described above, a Fund will be
restricted in selling assets held or considered to have been held for less than
three months, and in engaging in certain hedging transactions (including hedging
transactions in options and futures) that in some circumstances could cause
certain Fund assets to be treated as held for less than three months.

         Certain of a Fund's hedging activities (including its transactions, if
any, in foreign currencies or foreign currency-denominated instruments) are
likely to produce a difference between its book income and its taxable income.
If a Fund's book income exceeds its taxable income, the distribution (if any) of
such excess will be treated as (i) a dividend to the extent of the Fund's
remaining earnings and profits (including earnings and profits arising from
tax-exempt income), (ii) thereafter as a return of capital to the extent of the
recipient's basis in the shares, and (iii) thereafter as gain from the sale or
exchange of a capital asset. If the Fund's book income is less than its taxable
income, the Fund could be required to make distributions exceeding book income
to qualify as a regulated investment company that is accorded special tax
treatment.

         If a Fund makes a distribution in excess of its current and accumulated
"earnings and profits" in any taxable year, the excess distribution will be
treated as a return of capital to the extent of a Shareholder's tax basis in
Fund shares, and thereafter as capital gain. A return of capital is not taxable,
but it reduces the Shareholder's tax basis in the shares, thus reducing any loss
or increasing any gain on a subsequent taxable disposition of those shares.

         A Fund's investment in securities issued at a discount and certain
other obligations will (and investments in securities purchased at a discount
may) require the Fund to accrue and distribute income not yet received. In order
to generate sufficient cash to make the requisite distributions, a Fund may be
required to sell securities in its portfolio that it otherwise would have
continued to hold.
    

         The Funds will be required in certain cases to withhold and remit to
the United States Treasury 31% of taxable dividends and other distributions paid
to any Shareholder who has provided either an incorrect tax identification
number or no number at all, or who is subject to withholding by the Internal
Revenue Service for failure to properly include on his or her tax return
payments of interest or dividends.



   
         The foregoing discussion and the one below regarding the California
Tax-Free Money Market Fund and the California Intermediate Tax-Free Bond Fund
under "Federal Taxation" is only a summary of some of the important Federal tax
considerations generally affecting purchasers of the Funds' Shares. No attempt
has been made to present a detailed explanation of the Federal income tax
treatment of the Funds, and this discussion is not 
    


                                      -44-
<PAGE>   527

   
intended as a substitute for careful tax planning. Accordingly, potential
purchasers of the Funds' Shares are urged to consult their tax advisors with
specific reference to their own tax situation. Foreign Shareholders should
consult their tax advisors regarding the U.S. and foreign tax consequences of an
investment in the Funds. In addition, this discussion is based on tax laws and
regulations that are in effect on the date of this Statement of Additional
Information; such laws and regulations may be changed by legislative, judicial
or administrative action, and such changes may be retroactive.

Additional Tax Information Concerning The California Tax-Free Money Market Fund
and  The California Intermediate Tax-Free Bond Fund

         Federal Taxation. As indicated in their respective Prospectuses, the
California Tax-Free Money Market Fund and the California Intermediate Tax-Free
Bond Fund are designed to provide individual Shareholders with current
tax-exempt interest income. None of these Funds is intended to constitute a
balanced investment program or is designed for investors seeking capital
appreciation. Nor are the California Tax-Free Money Market Fund or the
California Intermediate Tax-Free Bond Fund designed for investors seeking
maximum tax-exempt income irrespective of fluctuations in principal. Shares of
the Funds may not be suitable for tax-exempt institutions and may not be
suitable for retirement plans qualified under Section 401 of the Code, H.R. 10
plans, and individual retirement accounts because such plans and accounts are
generally tax-exempt and, therefore, would not gain any additional benefit from
the Funds' dividends being tax-exempt, and such dividends would ultimately be
taxable to the beneficiaries when distributed to them.

         The Code permits a regulated investment company that invests at least
50% of its total assets in tax-free Municipal Securities to pass through to its
investors, tax-free, net Municipal Securities interest income to the extent such
interest would be exempt if earned directly. Because the California Tax-Free
Money Market Fund and the California Intermediate Tax-Free Bond Fund intend to
be qualified to pay such exempt-interest dividends, these Funds will be limited
in their ability to enter into taxable transactions, such as forward
commitments, repurchase agreements, securities lending transactions, financial
futures and options contracts on financial futures, tax-exempt bond indices and
other assets. The policy of the California Tax-Free Money Market Fund and the
California Intermediate Tax-Free Bond Fund is to pay each year as dividends
substantially all of such Fund's Municipal Securities interest income net of
certain deductions. An exempt-interest dividend is any dividend or part thereof
derived from interest excludable from gross income and designated as an
exempt-interest dividend in a written notice mailed to Shareholders after the
close of such Fund's taxable year, but the aggregate of such dividends may not
exceed the net Municipal Securities interest received by the Fund during the
taxable year. In the case of each of the California Tax-Free Money Market Fund
and the California Intermediate Tax-Free Bond Fund the percentage of the
dividends paid for any taxable year that qualifies as federal exempt-interest
dividends will be the same for all Shareholders receiving dividends during such
year, regardless of the period for which the Shares were held.
    

                                      -45-
<PAGE>   528

   
         Exempt-interest dividends may be treated by Shareholders of the
California Tax-Free Money Market Fund and the California Intermediate Tax-Free
Bond Fund as items of interest excludable from their gross income under Section
103(a) of the Code. However, each such Shareholder is advised to consult his or
her tax advisor with respect to whether exempt-interest dividends would retain
the exclusion under Section 103(a) if such Shareholder were treated as a
"substantial user" or a "related person" to such user under Section 147(a) with
respect to facilities financed through any of the tax-exempt obligations held by
the California Tax-Free Money Market Fund and the California Intermediate
Tax-Free Bond Fund.

         The California Tax-Free Money Market Fund and the California
Intermediate Tax-Free Bond Fund will distribute substantially all of any
investment company taxable income for each taxable year. In general, a Fund's
investment company taxable income will be its taxable income subject to certain
adjustments and excluding the excess of any net long-term capital gains for the
taxable year over the net short-term capital loss, if any, for such year.
Distributions of such income will be taxable to Shareholders as ordinary income.
The dividends-received deduction for corporations is not expected to apply to
such distributions.

         Distribution of the excess of the California Tax-Free Money Market
Fund's and the California Intermediate Tax-Free Bond Fund's net long-term
capital gain (if any) over its net short-term capital loss will be taxable to
the Fund's Shareholders as a long-term capital gain in the year in which
received, regardless of how long a time the Shareholder held the Fund's Shares
and such distributions will not be eligible for the dividends received
deduction. If a Shareholder disposes of Shares in a Fund at a loss before
holding such Shares for longer than six months, such loss will be treated as a
long-term capital loss to the extent the Shareholder has received a capital gain
dividend on the Shares.
    

         Shareholders receiving social security or railroad retirement benefits
may be taxed on a portion of those benefits as a result of receiving tax-exempt
income (including exempt-interest dividends distributed by the Fund).

   
         Like the other Funds, if for any taxable year the California Tax-Free
Money Market Fund or the California Intermediate Tax-Free Bond Fund does not
qualify for the special tax treatment afforded regulated investment companies,
all of such Fund's taxable income will be subject to tax at regular corporate
rates (without any deduction for distributions to Shareholders), and Municipal
Securities interest income, although not taxable to the California Tax-Free
Money Market Fund or the California Intermediate Tax-Free Bond Fund would be
taxable to Shareholders when distributed as dividends.

         Depending upon the extent of its activities in states and localities in
which its offices are maintained, in which its agents or independent contractors
are located or in which it is otherwise deemed to be conducting business, the
California Tax-Free Money Market Fund and the California Intermediate Tax-Free
Bond Fund may be subject to the tax laws of such
    



                                      -46-
<PAGE>   529

   
states or localities. For a summary of certain California tax considerations
affecting the California Tax-Free Money Market Fund and the California
Intermediate Tax-Free Bond Fund, see "California Taxation" below.

         As indicated in their Prospectuses, the California Tax-Free Money
Market Fund and the California Intermediate Tax-Free Bond Fund may acquire
rights regarding specified portfolio securities under puts. See "Investment
Objectives and Policies - Additional Information on Portfolio Instruments -
Puts" in this Statement of Additional Information. The policy of each Fund is to
limit its acquisition of puts to those under which the Fund will be treated for
Federal income tax purposes as the owner of the Municipal Securities acquired
subject to the put and the interest on such Municipal Securities will be
tax-exempt to the Fund. There is currently no guidance available from the
Internal Revenue Service that definitively establishes the tax consequences that
may result from the acquisition of many of the types of puts that the California
Tax-Free Money Market Fund or the California Intermediate Tax-Free Bond Fund
could acquire under the 1940 Act. Therefore, although they will only acquire a
put after concluding that it will have the tax consequences described above, the
Internal Revenue Service could reach a different conclusion from that of the
relevant Fund.

         California Taxation. Under existing California law, if the California
Tax-Free Money Market Fund and the California Intermediate Tax-Free Bond Fund
continue to qualify for the special federal income tax treatment afforded
regulated investment companies and if at the end of each quarter of each such
Fund's taxable year at least 50% of the value of that Fund's assets consists of
obligations that, if held by an individual, would pay interest exempt from
California taxation ("California Exempt-Interest Securities"), Shareholders of
that Fund will be able to exclude from income, for California personal income
tax purposes, "California exempt-interest dividends" received from that Fund
during that taxable year. A "California exempt-interest dividend" is any
dividend or portion thereof of the California Tax-Free Money Market Fund or the
California Intermediate Tax-Free Bond Fund not exceeding the interest received
by the Fund during the taxable year on obligations that, if held by an
individual, would pay interest exempt from California taxation (less direct and
allocated expenses, which includes amortization of acquisition premium) and so
designated by written notice to Shareholders within 60 days after the close of
that taxable year.

         Distributions, other than of "California exempt-interest dividends," by
the California Tax-Free Money Market Fund and the California Intermediate
Tax-Free Bond Fund to California residents will be subject to California
personal income taxation. Gains realized by California residents from a
redemption or sale of Shares of the California Tax-Free Money Market Fund and
the California Intermediate Tax-Free Bond Fund will also be subject to
California personal income taxation. In general, California nonresidents, other
than certain dealers, will not be subject to California personal income taxation
on distributions by, or on gains from the redemption or sale of, Shares of the
California Tax-Free Money Market Fund and the California Intermediate Tax-Free
Bond Fund unless those Shares have acquired a California "business situs." (Such
California nonresidents may, however, be subject to other 
    



                                      -47-
<PAGE>   530

   
state or local income taxes on such distributions or gains, depending on their
residence.) Short-term capital losses realized by shareholders from a redemption
of shares of the California Tax-Free Money Market Fund and the California
Intermediate Tax-Free Bond Fund within six months from the date of their
purchase will not be allowed for California personal income tax purposes to the
extent of any tax-exempt dividends received with respect to such Shares during
such period. No deduction will be allowed for California personal income tax
purposes for interest on indebtedness incurred or continued in order to purchase
or carry Shares of the California Tax-Free Money Market Fund and the California
Intermediate Tax-Free Bond Fund for any taxable year of a Shareholder during
which the Fund distributes "California exempt-interest dividends."
    

         A statement setting forth the amount of "California exempt-interest
dividends" distributed during each calendar year will be sent to Shareholders
annually.

   
         The foregoing is only a summary of some of the important California
personal income tax considerations generally affecting the Shareholders of the
California Tax-Free Money Market Fund and the California Intermediate Tax-Free
Bond Fund. This summary does not describe the California tax treatment of the
California Tax-Free Money Market Fund and the California Intermediate Tax-Free
Bond Fund, in addition, no attempt has been made to present a detailed
explanation of the California personal income tax treatment of the Fund's
Shareholders. Accordingly, this discussion is not intended as a substitute for
careful planning. Further, "California exempt-interest dividends" are excludable
from income for California personal income tax purposes only. Any dividends paid
to Shareholders subject to California corporate franchise tax will be taxed as
ordinary dividends to such Shareholders, notwithstanding that all or a portion
of such dividends is exempt from California personal income tax. Accordingly,
potential investors in the California Tax-Free Money Market Fund and the
California Intermediate Tax-Free Bond Fund including, in particular, corporate
investors which may be subject to either California franchise tax or California
corporate income tax, should consult their tax advisors with respect to the
application of such taxes to the receipt of Fund dividends and as to their own
California tax situation, in general.

Foreign Taxes

         Dividends and interest received by a Fund may be subject to income,
withholding or other taxes imposed by foreign countries and U.S. possessions
that would reduce the yield on the Fund's securities. Tax conventions between
certain countries and the United States may reduce or eliminate these taxes.
Foreign countries generally do not impose taxes on capital gains with respect to
investments by foreign investors. If a Fund meets the Distribution Requirement
and if more than 50% of the value of the Fund's total assets at the close of its
taxable year consists of securities of foreign corporations, the Fund will be
eligible to file an election with the Internal Revenue Service that will enable
Shareholders, in effect, to receive the benefit of the foreign tax credit with
respect to any foreign and U.S. possessions income taxes paid by the Fund.
Pursuant to the election, the 
    



                                      -48-
<PAGE>   531

   
Fund will treat those taxes as dividends paid to its Shareholders. Each
Shareholder will be required to include a proportionate share of those taxes in
gross income as income received from a foreign source and must treat the amount
so included as if the Shareholder had paid the foreign tax directly. The
Shareholder may then either deduct the taxes deemed paid by him or her in
computing his or her taxable income or, alternatively, use the foregoing
information in calculating the foreign tax credit against the Shareholder's
federal income tax. If a Fund makes the election, it will report annually to its
Shareholders the respective amounts per share of the Fund's income from sources
within, and taxes paid to, foreign countries and U.S. possessions.


                             MANAGEMENT OF HIGHMARK
    

Trustees and Officers

   
         Overall responsibility for management of each Fund rests with the
Trustees of HighMark, who are elected by HighMark's Shareholders. There are
currently four Trustees, all of whom are not "interested persons" of HighMark
within the meaning of that term under the 1940 Act.

         The Trustees, in turn, elect the officers of HighMark to supervise
actively its day-to-day operations.

         The Trustees and officers of HighMark, their addresses and principal
occupations during the past five years are set forth below.

<TABLE>
<CAPTION>

                              Position(s) Held                      Principal Occupation   
Name and Address              With HighMark                         During Past 5 Years    
- ----------------              -------------                         -------------------    
<S>                         <C>                                 <C>  
Thomas L. Braje               Trustee                               Retired October, 1996.
100 Alfred Nobel Drive                                              Prior to October 1996,
Hercules, CA 94517                                                  Vice President and Chief
                                                                    Financial Officer of Bio
                                                                    Rad Laboratories, Inc.

David A. Goldfarb             Trustee                               Partner, Goldfarb &
111 Pine Street                                                     Simens, Certified Public
18th Floor                                                          Accountants.
San Francisco, CA 94105

Joseph C. Jaeger              Trustee                               Senior Vice President and
100 First Street                                                    Chief Financial Officer, 
San Francisco, CA 94105                                             Delta Dental Plan of
                                                                    California.

Frederick J. Long             Trustee                               President and Chief
520 Pike Street                                                     Executive Officer,
20th Floor                                                          Pettit-Morry Co. and
Seattle, WA 98101                                                   Acordia Northwest Inc.
                                                                    (each and insurance
                                                                    brokerage firm).
                                                        
David G. Lee                  President and Chief                   Senior Vice President of 
680 East Swedesford Road      Executive Officer                     Administrator and 
Wayne, PA 19087                                                     Distributor, employee since
                                                                    1993.  Prior to 1993,
                                                                    President for GW Sierra
                                                                    Trust Funds before 1991.

Robert DellaCroce             Controller and Assistant              CPA, Director of Fund
680 East Swedesford Road      Secretary                             Resources, employee since
Wayne, PA 19087                                                     1994.  Prior to 1994, senior
                                                                    manager for Arthur
                                                                    Andersen.

</TABLE>
    
                                                                    


                                      -49-
<PAGE>   532
   
<TABLE>
<S>                         <C>                                 <C>  

Kevin P. Robins              Vice President and Assistant        Employee since 1992. Prior
680 East Swedesford Road     Secretary; Senior Vice              to 1992, associate with
Wayne, PA 19087              President, General Counsel          Morgan Lewis & Bockius
                             and Secretary                       since 1988.

Kathryn L. Stanton           Vice President and Assistant        Employee since 1994.  Prior
680 East Swedesford Road     Secretary; Secretary                to 1992, associate with
Wayne, PA 19087                                                  Morgan Lewis & Bockius
                                                                 since 1988.

Sandra K. Orlow              Vice President and Assistant        Employee since 1983.
680 East Swedesford Road     Secretary                           
Wayne, PA 19087

Todd Cipperman               Vice President and Assistant        Employee since 1995.  From
680 East Swedesford Road     Secretary.                          1994 to May 1995, associate
Wayne, PA 19087                                                  with Dewey Ballantine.
                                                                 Prior to 1994, associate with
                                                                 Winston & Strawn.
                
</TABLE>
    

                                      -50-
<PAGE>   533
   
<TABLE>
<S>                         <C>                                 <C>  

Barbara A. Nugent            Vice President and Assistant        Employee since 1996.  Prior
680 East Swedesford Road     Secretary.                          to April 1996, associate with
Wayne, PA 19087                                                  Drinker, Biddle & Reath
                                                                 from 1994 to 1996.  Prior to 
                                                                 1996, Assistant Vice 
                                                                 President/Administration for
                                                                 Delaware Service Company,
                                                                 Inc. from 1992 to 1993 and
                                                                 Assistant Vice-Operations of 
                                                                 Delaware Service Company, 
                                                                 Inc. from 1988 to 1992.                        

Marc H. Cahn                 Vice President and Assistant        Employee since 1996.  Prior
680 East Swedesford Road     Secretary                           to May 1996, Associate
Wayne, PA 19087                                                  General Counsel for
                                                                 Barclays Bank PLC from 
                                                                 May 1995 to May 1996.
                                                                 Prior to 1996, ERISA
                                                                 counsel for First Fidelity
                                                                 Bancorporation from 1994 to
                                                                 1995.  Prior to 1994, 
                                                                 Associate with Morgan
                                                                 Lewis & Bockius from 1989
                                                                 to 1994.
</TABLE>
    

   
     The Trustees of HighMark receive quarterly retainer fees and fees and
expenses for each meeting of the Board of Trustees attended.  No employee,
officer or stockholder of SEI Fund Resources and/or SEI Financial Services
Company receives any compensation directly from HighMark for serving as a
Trustee and/or officer. SEI Fund Resources and/or SEI Financial Services Company
receive administration, fund accounting servicing and distribution fees from
each of HighMark's Funds. See "Manager and Administrator" and "Distributor"
below.  Messrs. Robins, Cipperman, Cahn, DellaCroce, and Lee, and Ms. Stanton,
Ms. Orlow, and Ms. Nugent are employees and officers of SEI Investments Company.
While SEI Fund Resources is a distinct legal entity from SEI Financial Services
Company, SEI Fund Resources is considered to be an affiliated person of SEI
Financial Services Company under the 1940 Act due to, among other things, the
fact that SEI Financial Services Company and SEI Fund Resources are both
controlled by the same ultimate parent company, SEI Investments Company. 
    

                                      -51-
<PAGE>   534


   
         During the fiscal year ended July 31, 1996, fees paid to the
disinterested Trustees for their services as Trustees aggregated $36,000. For
the disinterested Trustees, the following table sets forth information
concerning fees paid and retirement benefits accrued during the fiscal year
ended July 31, 1996:
    

<TABLE>
<CAPTION>

                (1)                (2)                      (3)                   (4)                   (5)
              Name of           Aggregate               Pension or         Estimated Annual     Total Compensation
              Trustee         Compensation              Retirement           Benefits Upon           from Fund
                               from Group            Benefits Accrued         Retirement          Complex Paid to
                                                            as                                       Trustees
                                                       Part of Fund
                                                         Expenses
              -------         ------------           ----------------      ----------------     ------------------     


<S>                               <C>                      <C>                   <C>              <C>
Thomas L. Braje                   $9,000                    None                  None               $9,000
David A. Goldfarb                 $9,000                    None                  None               $9,000
Joseph C. Jaeger                  $9,000                    None                  None               $9,000
Frederick J. Long                 $9,000                    None                  None               $9,000
</TABLE>

   
Investment  Advisor

         Investment advisory and management services are provided to each of
HighMark's Funds by Pacific Alliance Capital Management, formerly MERUS-UCA
Capital Management (the "Advisor"), pursuant to an investment advisory agreement
between Union Bank of California and HighMark dated as of April 1, 1996 (the
"Investment Advisory Agreement"). Union Bank of California serves as custodian
for each of HighMark's Funds. See "Transfer Agent, Custodian and Fund Accounting
Services" below. Union Bank of California also serves as sub-administrator to
each of HighMark's Funds pursuant to an agreement with SEI Fund Resources. See
"Manager and Administrator" below.

         Unless sooner terminated, the Investment Advisory Agreement will
continue in effect as to each particular Fund from year to year if such
continuance is approved at least annually by HighMark's Board of Trustees or by
vote of a majority of the outstanding Shares of such Fund (as defined under
General Information - Miscellaneous in the Prospectuses), and a majority of the
Trustees who are not parties to the Investment Advisory Agreement or interested
persons (as defined in the 1940 Act) of any party to the Investment Advisory
Agreement by votes cast in person at a meeting called for such purpose. The
Investment Advisory Agreement is terminable as to a particular Fund at any time
on 60 days' written notice without penalty by the Trustees, by vote of a
majority of the outstanding Shares of that Fund, or by Union Bank of California.
The Investment Advisory Agreement terminates automatically in the event of any
assignment, as defined in the 1940 Act.

         The Investment Advisory Agreement provides that Union Bank of
California will not be liable for any error of judgment or mistake of law or for
any loss suffered by HighMark in connection with the Advisor's services under
the Investment Advisory Agreement, except a loss resulting from a breach of
fiduciary duty with respect to the receipt of compensation for services or a
loss resulting from willful misfeasance, bad faith, or gross negligence on the
part
    



                                      -53-
<PAGE>   535



of the Advisor in the performance of its duties, or from reckless disregard by
the Advisor of its duties and obligations thereunder.

   
         On April 1, 1996, the Bank of California, N.A., HighMark's
then-investment advisor, combined with Union Bank and the resulting bank changed
its name to Union Bank of California, N.A. At the same time, the banks'
investment management divisions were combined. Each of the Bank of California
and Union Bank (or its predecessor bank) has been in banking since the early
1900's, and historically, each has had significant investment functions within
its trust and investment division. Union Bank of California, N.A. is a
subsidiary of UnionBanCal Corporation, a publicly traded corporation, a majority
of the shares of which are owned by Bank of Tokyo - Mitsubishi, Limited.

         For the services provided and expenses assumed by the Advisor pursuant
to the Investment Advisory Agreement, Union Bank of California is entitled to
receive fees from each Fund as described in that Fund's Prospectus. For the
fiscal year ended July 31, 1996, Union Bank of California received the following
investment advisory fees: $180,047 from the Growth Fund (an additional $182,161
in fees were voluntarily reduced); $1,722,014 from the Income Equity Fund (an
additional $33,207 in fees were voluntarily reduced); $187,523 from the Balanced
Fund (an additional $160,670 in fees were voluntarily reduced); $277,708 from
the Bond Fund (an additional $256,561 in fees were voluntarily reduced);
$1,590,719 from the Diversified Money Market Fund; $944,226 from the U.S.
Government Money Market Fund; $1,203,300 from the 100% U.S. Treasury Money
Market Obligations Fund; and $352,464 from the California Tax Free Money Market
Fund (an additional $265,714 in fees were voluntarily reduced). Because the
Value Momentum Fund, the Blue Chip Growth Fund, the Emerging Growth Fund, the
International Equity Fund, the Intermediate-Term Bond Fund, the Government
Securities Fund, the Convertible Securities Fund and the California Intermediate
Tax-Free Bond Fund had not commenced operations in HighMark as of July 31, 1996,
they paid no investment advisory fees during such fiscal year.

         For the fiscal year ended July 31, 1995, the Bank of California
received the following investment advisory fees: $37,349 from the Growth Fund
(an additional $158,716 in fees were voluntarily reduced); $1,419,062 from the
Income Equity Fund (an additional $11,439 in fees were voluntarily reduced);
$83,790 from the Balanced Fund (an additional $168,408 in fees were voluntarily
reduced); $271,150 from the Bond Fund (an additional $250,310 in fees were
voluntarily reduced); $1,429,494 from the Diversified Money Market Fund;
$729,094 from the U.S. Government Money Market Fund; $920,611 from the 100% U.S.
Treasury Money Market Fund; and $267,095 from the California Tax Free Money
Market Fund (an additional $326,450 in fees were voluntarily reduced).

         For the fiscal year ended July 31, 1994, the Bank of California
received the following investment advisory fees: $0 from the Growth Fund (an
additional $63,330 in fees were voluntarily reduced); $1,216,590 from the Income
Equity Fund (an additional $40,330 in fees
    

                                      -54-
<PAGE>   536


   
were voluntarily reduced); $47,972 from the Balanced Fund (an additional
$112,239 in fees were voluntarily reduced); $268,520 from the Bond Fund (an
additional $249,371 in fees were voluntarily reduced); $1,471,655 from the
Diversified Money Market Fund; $825,406 from the U.S. Government Money Market
Fund; $833,971 from the 100% U.S. Treasury Money Market Fund; and $316,744 from
the California Tax-Free Money Market Fund (an additional $387,133 in fees were
voluntarily reduced).

The Sub-Advisors

         The Advisor and Bank of Tokyo-Mitsubishi Trust Company have entered
into a sub-advisory agreement which relates to the Emerging Growth, Blue Chip
Growth, Convertible Securities and Government Securities Funds. The Advisor and
Tokyo-Mitsubishi Asset Management (UK) Ltd. have entered into a sub-advisory
agreement which relates to the International Equity Fund (the Bank of
Tokyo-Mitsubishi Trust Company, together with Tokyo-Mitsubishi Asset Management
(UK) Ltd., are hereafter collectively, the "Sub-Advisors").

         Under its sub-advisory agreement, Bank of Tokyo-Mitsubishi Trust
Company is entitled to a fee which is calculated daily and paid monthly at an
annual rate of .20% of the average daily net assets of the Government Securities
Fund, .30% of the average daily net assets of the Blue Chip Growth Fund and
Convertible Securities Fund and .50% of the average daily net assets of the
Emerging Growth Fund. Such fee is paid by the Advisor, and Bank of
Tokyo-Mitsubishi Trust Company receives no fees directly from a Fund. Because
the Government Securities Fund, the Blue Chip Growth Fund, the Convertible
Securities Fund and the Emerging Growth Fund had not commenced operations as of
July 31, 1996, Bank of Tokyo-Mitsubishi Trust Company received no sub-advisory
fees.

         Bank of Tokyo-Mitsubishi Trust Company operates as a subsidiary of The
Bank of Tokyo-Mitsubishi, Ltd. Bank of Tokyo-Mitsubishi Trust Company was
established in 1955 and has been providing asset management services since 1965.

         Under its sub-advisory agreement, Tokyo-Mitsubishi Asset Management
(UK), Ltd. is entitled to a fee which is calculated daily and paid monthly at an
annual rate of .30% of the average daily net assets of the International Equity
Fund. Such a fee is paid by the Advisor, and Tokyo-Mitsubishi Asset Management
(UK), Ltd. receives no fees directly from the International Equity Fund. Because
the International Equity Fund had not commenced operations as of July 31, 1996,
Tokyo-Mitsubishi Asset Management (UK), Ltd. received no sub-advisory fees.

         Tokyo-Mitsubishi Asset Management (UK), Ltd. operates as a subsidiary 
of The Bank of Tokyo-Mitsubishi, Ltd.  Tokyo-Mitsubishi Asset Management (UK), 
Ltd was established in 1989.
    

                                      -55-
<PAGE>   537



Portfolio Transactions

   
         Pursuant to the Investment Advisory Agreement, the Advisor determines,
subject to the general supervision of the Board of Trustees of HighMark and in
accordance with each Fund's investment objective and restrictions, which
securities are to be purchased and sold by a Fund, and which brokers are to be
eligible to execute its portfolio transactions. Purchases and sales of portfolio
securities for the Bond Fund, the Intermediate-Term Bond Fund, the Government
Securities Fund, the Convertible Securities Fund, the California Intermediate
Tax-Free Bond Fund, the Diversified Money Market Fund, the U.S. Government Money
Market Fund, the 100% U.S. Treasury Money Market Fund and the California
Tax-Free Money Market Fund usually are principal transactions in which portfolio
securities are normally purchased directly from the issuer or from an
underwriter or market maker for the securities. Purchases from underwriters of
portfolio securities include a commission or concession paid by the issuer to
the underwriter and purchases from dealers serving as market makers may include
the spread between the bid and asked price. Securities purchased by the Growth
Fund, the Income Equity Fund, the Value Momentum Fund, the Blue Chip Growth
Fund, the Emerging Growth Fund and the International Equity Fund will generally
involve the payment of a brokerage fee. Portfolio transactions for the Balanced
Fund may be principal transactions or involve the payment of brokerage
commissions. While the Advisor generally seeks competitive spreads or
commissions on behalf of each of the Funds, HighMark may not necessarily pay the
lowest spread or commission available on each transaction, for reasons discussed
below.

         Allocation of transactions, including their frequency, to various
dealers is determined by the Advisor or the Sub-Advisors in their best judgment
and in a manner deemed fair and reasonable to Shareholders. The primary
consideration is prompt execution of orders in an effective manner at the most
favorable price. Subject to this consideration, dealers who provide supplemental
investment research to the Advisor or the Sub-Advisors may receive orders for
transactions by HighMark. Information so received is in addition to and not in
lieu of services required to be performed by the Advisor or the Sub-Advisors and
does not reduce the advisory fees payable to Union Bank of California by
HighMark. Such information may be useful to the Advisor or the Sub-Advisors in
serving both HighMark and other clients and, conversely, supplemental
information obtained by the placement of business of other clients may be useful
to the Advisor in carrying out its obligations to HighMark.

         Upon adoption by the Board of Trustees of certain procedures pursuant
to Rule 17e-1 under the Investment Company Act, HighMark may execute portfolio
transactions involving the payment of a brokerage fee through Union Bank of
California, SEI Financial Services Company, and their affiliates in accordance
with such procedures. HighMark will not acquire portfolio securities issued by,
make savings deposits in, or enter repurchase or reverse repurchase agreements
with, Union Bank of California, or their affiliates, and will not give
    



                                      -56-
<PAGE>   538

preference to correspondents of Union Bank of California with respect to such
securities, savings deposits, repurchase agreements and reverse repurchase
agreements.

   
         Investment decisions for each Fund of HighMark are made independently
from those for the other Funds or any other investment company or account
managed by the Advisor, the Sub-Advisors or Union Bank of California. However,
any such other investment company or account may invest in the same securities
as HighMark. When a purchase or sale of the same security is made at
substantially the same time on behalf of a Fund and another Fund, investment
company or account, the transaction will be averaged as to price, and available
investments allocated as to amount, in a manner that the Advisor or the
Sub-Advisors and Union Bank of California believe to be equitable to the Fund(s)
and such other investment company or account. In some instances, this investment
procedure may adversely affect the price paid or received by a Fund or the size
of the position obtained by a Fund. To the extent permitted by law, the Advisor,
or the Sub-Advisors and Union Bank of California may aggregate the securities to
be sold or purchased for a Fund with those to be sold or purchased for the other
Funds or for other investment companies or accounts in order to obtain best
execution. As provided in the Investment Advisory Agreement and the Sub-Advisory
Agreements, in making investment recommendations for HighMark, the Advisor or
the Sub-Advisors will not inquire or take into consideration whether an issuer
of securities proposed for purchase or sale by HighMark is a customer of the
Advisor, the Sub-Advisors or Union Bank of California, their parent or its
subsidiaries or affiliates and, in dealing with its commercial customers, the
Advisor, the Sub-Advisors and Union Bank of California, their parent,
subsidiaries, and affiliates will not inquire or take into consideration whether
securities of such customers are held by HighMark.

         The following brokerage commissions were paid in the fiscal year ended
July 31, 1996: $104,127 by the Growth Fund, $318,261 by the Income Equity Fund,
and $13,043 by the Balanced Fund. The following brokerage commissions were paid
in the fiscal year ended July 31, 1995: $57,798 by the Growth Fund, $257,339 by
the Income Equity Fund, and $10,757 by the Balanced Fund. The following
brokerage commissions were paid in the fiscal year ended July 31, 1994: $49,878
by the Growth Fund; $212,350 by the Income Equity Fund; and $30,025 by the
Balanced Fund.
    

Glass-Steagall Act

         In 1971, the United States Supreme Court held in Investment Company
Institute v. Camp that the federal statute commonly referred to as the
Glass-Steagall Act prohibits a national bank from operating a mutual fund for
the collective investment of managing agency accounts. Subsequently, the Board
of Governors of the Federal Reserve System (the "Board") issued a regulation and
interpretation to the effect that the Glass-Steagall Act and such decision: (a)
forbid a bank holding company registered under the Federal Bank Holding Company
Act of 1956 (the "Holding Company Act") or any non-bank affiliate thereof from
sponsoring, organizing, or controlling a registered, open-end investment company



                                      -57-
<PAGE>   539

   
continuously engaged in the issuance of its shares, but (b) do not prohibit such
a holding company or affiliate from acting as investment advisor, transfer
agent, and custodian to such an investment company. In 1981, the United States
Supreme Court held in Board of Governorsof the Federal Reserve System v.
Investment Company Institute that the Board did not exceed its authority under
the Holding Company Act when it adopted its regulation and interpretation
authorizing bank holding companies and their non-bank affiliates to act as
investment advisors to registered closed-end investment companies. In the Board
of Governors case, the Supreme Court also stated that if a national bank
complies with the restrictions imposed by the Board in its regulation and
interpretation authorizing bank holding companies and their non-bank affiliates
to act as investment advisors to investment companies, a national bank
performing investment advisory services for an investment company would not
violate the Glass-Steagall Act.

         Union Bank of California believes that the Advisor and the Sub-Advisors
possess the legal authority to perform the services for the Funds contemplated
by the Investment Advisory Agreement and the Sub-Advisory Agreements and
described in the Prospectuses and this Statement of Additional Information and
has so represented in the Investment Advisory Agreement and the Sub-Advisory
Agreements. Future changes in either federal or state statutes and regulations
relating to the permissible activities of banks or bank holding companies and
the subsidiaries or affiliates of those entities, as well as further judicial or
administrative decisions or interpretations of present and future statutes and
regulations could prevent or restrict the Advisor from continuing to perform
such services for HighMark. Depending upon the nature of any changes in the
services that could be provided by the Advisor, or the Sub-Advisors, the Board
of Trustees of HighMark would review HighMark's relationship with the Advisor
and the Sub-Advisors and consider taking all action necessary in the
circumstances.

         Should further legislative, judicial or administrative action prohibit
or restrict the activities of Union Bank of California, its affiliates, and its
correspondent banks in connection with Customer purchases of Shares of HighMark,
such Banks might be required to alter materially or discontinue the services
offered by them to Customers. It is not anticipated, however, that any change in
HighMark's method of operations would affect its net asset value per Share or
result in financial losses to any Customer. Administrator and Sub-Administrator

          SEI Fund Resources (the "Administrator") serves as administrator to
each of HighMark's Funds pursuant to the administration agreement dated as of
February 15, 1997 between HighMark and the Administrator (the "Administration
Agreement").

          SEI Fund Resources is a Delaware business trust whose sole beneficiary
is SEI Financial Management Corporation. SEI Financial Management Corporation, a
wholly owned subsidiary of SEI Corporation ("SEI"), was organized as a Delaware
corporation in 1969 and has its principal business offices at 680 East
Swedesford Road, Wayne,
    



                                      -58-
<PAGE>   540

   
Pennsylvania 19087-1658. SEI and its subsidiaries are leading providers of funds
evaluation services, trust accounting systems, and brokerage and information
services to financial institutions, institutional investors and money managers.
The Administrator and its affiliates also serve as administrator to the
following other institutional mutual funds: SEI Daily Income Trust, SEI Liquid
Asset Trust, SEI Tax Exempt Trust, SEI Index Funds, SEI International Trust, SEI
Institutional Managed Trust, 1784(R) Funds, The Advisors' Inner Circle Fund, The
Pillar Funds, CUFund, STI Classic Funds, CoreFunds, Inc., First American Funds,
Inc., First American Investment Funds, Inc., The Arbor Fund, Marquis Funds(R),
Morgan Grenfell Investment Trust, The PBHG Funds, Inc., The Achievement Funds
Trust, Bishop Street Funds, CrestFunds, Inc., STI Classic Variable Trust,
Monitor Funds, FMB Funds, Inc., Turner Funds, ARK Funds, SEI Asset Allocation
Trust, and SEI Institutional Investments Trust.

         Pursuant to the Administration Agreement, the Administrator provides
the Group with administrative services, regulatory reporting, fund accounting
and related portfolio accounting services, all necessary office space,
equipment, personnel, compensation and facilities for handling the affairs of
the Group. As described below, the Administrator has delegated part of its
responsibilities under the Administration Agreement to Union Bank of California,
N.A.

         Through the fiscal year ended July 31, 1996 BISYS Fund Services Limited
Partnership d/b/a BISYS Fund Services ("BISYS Fund Services") served as
HighMark's administrator. For its services as administrator and expenses assumed
pursuant to the administration agreement between BISYS Fund Services and
HighMark, BISYS Fund Services received a fee from each Fund as described in that
Fund's Prospectus. For the fiscal year ended July 31, 1996, BISYS Fund Services
earned the following administration fees: $72,337 from the Growth Fund; $520,671
from the Income Equity Fund; $69,581 from the Balanced Fund; $80,226 from the
Bond Fund (an additional $43,205 in fees were voluntarily reduced); $795,393
from the Diversified Money Market Fund; $472,171 from the U.S. Government Money
Market Fund; $601,680 from the 100% U.S. Treasury Money Market Fund; and
$231,814 from the California Tax-Free Money Market Fund (an additional $77,275
in fees were voluntarily reduced). Because the Value Momentum Fund, the Blue
Chip Growth Fund, the Emerging Growth Fund, the International Equity Fund, the
Intermediate-Term Bond Fund, the Government Securities Fund, the Convertible
Securities Fund and the California Intermediate Tax-Free Bond Fund had not
commenced operations as of July 31, 1996, they paid no administration fees
during such fiscal year.

         For the fiscal year ended July 31, 1995, BISYS Fund Services earned the
following administration fees: $23,444 from the Growth Fund (an additional
$15,769 in fees were voluntarily reduced); $423,500 from the Income Equity Fund;
$50,440 from the Balanced Fund; $78,332 from the Bond Fund (an additional
$42,155 in fees were voluntarily reduced); $71,474 from the Diversified Money
Market Fund; $364,547 from the U.S. Government Money Market Fund; $460,306 from
the 100% U.S. Treasury Money Market Fund; and 
    



                                      -59-
<PAGE>   541

   
$222,580 from the California Tax-Free Money Market Fund (an additional $74,193
in fees were voluntarily reduced).

         For the fiscal year ended July 31, 1994, BISYS Fund Services earned the
following administration fees: $0 from the Growth Fund (an additional $12,666 in
fees were voluntarily reduced); $349,213 from the Income Equity Fund (an
additional $16,429 in fees were voluntarily reduced); $24,823 from the Balanced
Fund (an additional $7,219 in fees were voluntarily reduced); $77,570 from the
Bond Fund (an additional $41,725 in fees were voluntarily reduced); $735,828
from the Diversified Money Market Fund; $412,703 from the U.S. Government Money
Market Fund; $416,985 from the 100% U.S. Treasury Money Market Fund; and
$263,954 from the California Tax-Free Money Market Fund (an additional $87,985
in fees were voluntarily reduced).

         The Administration Agreement became effective on February 15, 1997,
unless sooner terminated as provided in the Administration Agreement (and as
described below), the Administration Agreement, as amended, will continue in
effect until July 31, 1999. The Administration Agreement thereafter shall be
renewed automatically for successive annual terms. The Administration Agreement
is terminable at any time with respect to a particular Fund or HighMark as a
whole by either party without penalty for any reason upon 90 days' written
notice by the party effecting such termination to the other party.

         The Administration Agreement provides that the Administrator shall not
be liable for any error of judgment or mistake of law or any loss suffered by
HighMark in connection with the matters to which the Administration Agreement
relates, except a loss resulting from willful misfeasance, bad faith, or gross
negligence in the performance of its duties, or from the reckless disregard by
the Administrator of its obligations and duties thereunder.

         The Administration Agreement permits the Administrator to subcontract
its services thereunder, provided that the Administrator will not be relieved of
its obligations under the Administration Agreement by the appointment of a
subcontractor and the Administrator shall be responsible to HighMark for all
acts of the subcontractor as if such acts were its own, except for losses
suffered by any Fund resulting from willful misfeasance, bad faith or gross
negligence by the subcontractor in the performance of its duties or for reckless
disregard by it of its obligations and duties. Pursuant to a sub-administration
agreement between the Administrator and Union Bank of California, N.A., Union
Bank of California, N.A. will perform services which may include clerical,
bookkeeping, accounting, stenographic and administrative services, for which it
will receive a fee, paid by the Administrator, at the annual rate of up to 0.05%
of each Fund's average daily net assets.
    

                                      -60-
<PAGE>   542

Shareholder Services Plan

   
          HighMark has adopted a Shareholder Services Plan (the "Services Plan")
pursuant to which a Fund is authorized to pay compensation to financial
institutions (each a "Service Provider"), which may include Bank of
Tokyo-Mitsubishi, Ltd., Union Bank of California, N.A., or their respective
affiliates, that agree to provide certain shareholder support services for their
customers or account holders (collectively, "customers") who are the beneficial
or record owners of Shares of a Fund. In consideration for such services, a
Service Provider is compensated by a Fund at a maximum annual rate of up to
0.25% of the average daily net asset value of Shares of a Fund.

         The servicing agreements adopted under the Services Plan (the
"Servicing Agreements") require the Service Provider receiving such compensation
to perform certain shareholder support services as set forth in the Servicing
Agreements with respect to the beneficial or record owners of Shares of a Fund.

         As authorized by the Services Plan, HighMark may enter into a Servicing
Agreement with a Service Provider pursuant to which the Service Provider has
agreed to provide certain shareholder support services in connection with Shares
of one or more of HighMark's Funds. Such shareholder support services may
include, but are not limited to, (i) maintaining Shareholder accounts; (ii)
providing information periodically to Shareholders showing their positions in
Shares; (iii) arranging for bank wires; (iv) responding to Shareholder inquiries
relating to the services performed by the Service Provider; (v) responding to
inquiries from Shareholders concerning their investments in Shares; (vi)
forwarding Shareholder communications from HighMark (such as proxies,
shareholder reports, annual and semi-annual financial statements and dividend,
distribution and tax notices) to Shareholders; (vii) processing purchase,
exchange and redemption requests from Shareholders and placing such orders with
HighMark or its service providers; (viii) assisting Shareholders in changing
dividend options, account designations, and addresses; (ix) providing
subaccounting with respect to Shares beneficially owned by Shareholders; (x)
processing dividend payments from HighMark on behalf of the Shareholders; and
(xi) providing such other similar services as HighMark may reasonably request to
the extent that the service provider is permitted to do so under applicable laws
or regulations.

Expenses

          HighMark's service providers bear all expenses in connection with the
performance of their respective services, except that each Fund will bear the
following expenses relating to its operations: taxes, interest, brokerage fees
and commissions, if any, fees and travel expenses of Trustees who are not
partners, officers, directors, shareholders or employees of Union Bank of
California, SEI Fund Resources or SEI Financial Services Company, Securities and
Exchange Commission fees and state fees and expenses, certain insurance
    




                                      -61-
<PAGE>   543

   
premiums, outside and, to the extent authorized by HighMark, inside auditing and
legal fees and expenses, fees charged by rating agencies in having the Fund's
Shares rated, advisory and administration fees, fees and reasonable
out-of-pocket expenses of the custodian and transfer agent, expenses incurred
for pricing securities owned by the Fund, costs of maintenance of corporate
existence, typesetting and printing prospectuses for regulatory purposes and for
distribution to current Shareholders, costs and expenses of Shareholders' and
Trustees' reports and meetings and any extraordinary expenses.

Distributor

          SEI Financial Services Company (the "Distributor"), a wholly-owned
subsidiary of SEI, serves as distributor to HighMark's Funds pursuant to the
distribution agreement dated February 15, 1997 between HighMark and the
Distributor (the "Distribution Agreement").


         Unless terminated, the Distribution Agreement will continue in effect
until July 31, 1999 and from year to year thereafter if approved at least
annually (i) by HighMark's Board of Trustees or by the vote of a majority of the
outstanding Shares of HighMark, and (ii) by the vote of a majority of the
Trustees of HighMark who are not parties to the Distribution Agreement or
interested persons (as defined in the 1940 Act) of any party to the Distribution
Agreement, cast in person at a meeting called for the purpose of voting on such
approval. The Distribution Agreement is terminable without penalty, on not less
than sixty days' notice by HighMark's Board of Trustees, by vote of a majority
of the outstanding voting securities of HighMark or by the Distributor. The
Distribution Agreement terminates in the event of its assignment, as defined in
the 1940 Act.

         The Distribution Plans. The operation and the 0.25% fee payable under
HighMark's Distribution Plans to which the Retail Shares of HighMark's Funds are
presently subject are described in each such Fund's Prospectus under "SERVICE
ARRANGEMENTS -The Distribution Plan." Through the fiscal year ended July 31,
1996, BISYS Fund Services served as HighMark's distributor. For the fiscal year
ended July 31, 1996, BISYS Fund Services received in respect of the sale of
Retail Shares distribution fees of: $236 in respect of the Growth Fund; $1,166
in respect of the Income Equity Fund, $87 in respect of the Balanced Fund, $183
in respect of the Bond Fund, $672 in respect of the Diversified Money Market
Fund, $14,879 in respect of the U.S. Government Money Market Fund, $0 in respect
of the 100% U.S. Treasury Money Market Fund, and $0 in respect of the California
Tax-Free Money Market Fund. Because the Value Momentum Fund, the Blue Chip
Growth Fund, the Emerging Growth Fund, the International Equity Fund, the
Intermediate-Term Bond Fund, the Government Securities Fund, the Convertible
Securities Fund and the California Intermediate Tax-Free Bond Fund had not
commenced operations as of July 31, 1996, they paid no distribution fees during
such fiscal year.
    

                                      -62-
<PAGE>   544

   
         For the fiscal year ended July 31, 1995, BISYS Fund Services received
in respect of the sale of Retail Shares distribution fees of: $0 in respect of
the Growth Fund; $0 in respect of the Income Equity Fund, $0 in respect of the
Balanced Fund, $0 in respect of the Bond Fund, $1,054 in respect of the
Diversified Money Market Fund, $1,701 in respect of the U.S. Government Money
Market Fund, $0 in respect of the 100% U.S. Treasury Money Market Fund, and $0
in respect of the California Tax-Free Money Market Fund.

         For the fiscal year ended July 31, 1994, BISYS Fund Services received 
$1,598.65 in distribution fees in respect of the Retail Shares of the
Diversified Money Market Fund. No other distribution fees were paid during such
fiscal year.

         In accordance with Rule 12b-1 under the 1940 Act, the Distribution
Plans may be terminated with respect to any Fund by a vote of a majority of the
Independent Trustees, or by a vote of a majority of the outstanding Retail
Shares of that Fund. The Distribution Plans may be amended by vote of HighMark's
Board of Trustees, including a majority of the Independent Trustees, cast in
person at a meeting called for such purpose, except that any change in a
Distribution Plan that would materially increase the distribution fee with
respect to a Fund requires the approval of that Fund's Retail Shareholders.
HighMark's Board of Trustees will review on a quarterly and annual basis written
reports of the amounts received and expended under the Distribution Plans
(including amounts expended by the Distributor to Participating Organizations
pursuant to the Servicing Agreements entered into under the Distribution Plans)
indicating the purposes for which such expenditures were made.

         Each Distribution Plan provides that it will continue in effect with
respect to each Fund for successive one-year periods, provided that each such
continuance is specifically approved (i) by the vote of a majority of the
Independent Trustees and (ii) by the vote of the entire Board of Trustees, cast
in person at a meeting called for such purpose. For so long as each of the
Distribution Plans remains in effect, the selection and nomination of those
trustees who are not interested persons of HighMark (as defined in the 1940 Act)
shall be committed to the discretion of such disinterested persons.

Transfer Agent and Custodian  Services

          State Street Bank and Trust Company performs transfer agency services
for HighMark's Funds pursuant to a transfer agency and shareholder service
agreement with HighMark dated as of February 15, 1997 (the "Transfer Agency
Agreement"). As each Fund's transfer agent, State Street Bank and Trust Company
processes purchases and redemptions of each Fund's Shares and maintains each
Fund's Shareholder transfer and accounting records, such as the history of
purchases, redemptions, dividend distributions, and similar transactions in a
Shareholders's account.

         Under the Transfer Agency Agreement, HighMark has agreed to pay State
Street Bank and Trust Company annual fees at the rate of $18,000 per Retail
class/per Fund. The Distributor has agreed to pay State Street Bank and Trust
Company annual fees at
    



                                      -63-
<PAGE>   545

   
the rate of $15,000 per Fiduciary class/per Fund. In addition, there will be an
annual account maintenance fee of $25.00 per account and IRA Custodial fees
totalling $15.00 per account, as well as out-of-pocket expenses as defined in
the Transfer Agency Agreement. HighMark intends to charge transfer agency fees
across the HighMark Funds as a whole. State Street Bank and Trust Company may
periodically voluntarily reduce all or a portion of its transfer agency fee with
respect to a Fund to increase the Fund's net income available for distribution
as dividends.

         Union Bank of California, N.A. serves as custodian to HighMark's Funds
pursuant to a custodian agreement with HighMark dated as of December 23, 1991,
as amended (the "Custodian Agreement"). Under the Custodian Agreement, Union
Bank of California's responsibilities include safeguarding and controlling each
Fund's cash and securities, handling the receipt and delivery of securities, and
collecting interest and dividends on each Fund's investments.

         Under the Custodian Agreement, HighMark has agreed to pay Union Bank of
California a domestic custodian fee with respect to each Fund at an annual rate
of .01% of the Fund's average daily net assets, with an annual minimum fee of
$2,500 per Fund, plus certain transaction fees. Union Bank of California is also
entitled to be reimbursed by HighMark for its reasonable out-of-pocket expenses
incurred in the performance of its duties under the Custodian Agreement. Global
custody fees shall be determined on a transaction basis. Union Bank of
California may periodically voluntarily reduce all or a portion of its custodian
fee with respect to a Fund to increase the Fund's net income available for
distribution as dividends.
    

Auditors

   
         The financial statements of HighMark for the period ended July 31,
1996, appearing in this Statement of Additional Information have been audited by
Deloitte & Touche LLP, independent accountants, as set forth in their report
appearing elsewhere herein, and are included in reliance upon such report and on
the authority of such firm as experts in auditing and accounting.
    

Legal Counsel

   
         Ropes & Gray, One Franklin Square, 1301 K Street, N.W., Suite 800 East,
Washington, D.C. 20005, are counsel to HighMark and will pass upon the legality
of the Shares offered hereby.
    



                                      -64-
<PAGE>   546

                             ADDITIONAL INFORMATION

Description of Shares

   
          HighMark is a Massachusetts business trust. HighMark's Declaration of
Trust was originally filed with the Secretary of State of The Commonwealth of
Massachusetts on March 10, 1987. The Declaration of Trust, as amended,
authorizes the Board of Trustees to issue an unlimited number of Shares, which
are units of beneficial interest, without par value. HighMark's Declaration of
Trust, as amended, further authorizes the Board of Trustees to establish one or
more series of Shares of HighMark, and to classify or reclassify the Shares of
any series into one or more classes by setting or changing in any one or more
respects the preferences, designations, conversion or other rights,
restrictions, limitations as to dividends, conditions of redemption,
qualifications or other terms applicable to the Shares of such class, subject to
those matters expressly provided for in the Declaration of Trust, as amended,
with respect to the Shares of each series of HighMark. HighMark presently
consists of sixteen series of Shares, representing units of beneficial interest
in the Growth Fund, the Income Equity Fund, the Balanced Fund, the Value
Momentum Fund, the Blue Chip Growth Fund, the Emerging Growth Fund, the
International Equity Fund, the Bond Fund, the Intermediate-Term Bond Fund, the
Government Securities Fund, the Convertible Securities Fund, the California
Intermediate Tax-Free Bond Fund, the Diversified Money Market Fund, the U.S.
Government Money Market Fund, the 100% U.S. Treasury Money Market Fund, and the
California Tax-Free Money Market Fund. As described in the Prospectuses,
selected Funds have been divided into two classes of Shares, designated Retail
Shares and Fiduciary Shares.

         Shares have no subscription or preemptive rights and only such
conversion or exchange rights as the Board of Trustees may grant in its
discretion. When issued for payment as described in the Prospectuses and this
Statement of Additional Information, HighMark's Shares will be fully paid and
non-assessable. In the event of a liquidation or dissolution of HighMark,
Shareholders of a Fund are entitled to receive the assets available for
distribution belonging to that Fund, and a proportionate distribution, based
upon the relative asset values of the respective Funds, of any general assets
not belonging to any particular Fund that are available for distribution. Upon
liquidation or dissolution of HighMark, Retail and Fiduciary shareholders are
entitled to receive the net assets of the Fund attributable to each class.

         As used in the Prospectuses and in this Statement of Additional
Information, "assets belonging to a Fund" means the consideration received by
HighMark upon the issuance or sale of Shares in that Fund, together with all
income, earnings, profits, and proceeds derived from the investment thereof,
including any proceeds from the sale, exchange, or liquidation of such
investments, and any funds or payments derived from any reinvestment of such
proceeds, and any general assets of HighMark not readily identified as belonging
to a particular Fund that are allocated to that Fund by HighMark's Board of
Trustees. Such allocations of
    



                                      -65-
<PAGE>   547

   
general assets may be made in any manner deemed fair and equitable, and it is
anticipated that the Board of Trustees will use the relative net asset values of
the respective Funds at the time of allocation. Assets belonging to a particular
Fund are charged with the direct liabilities and expenses of that Fund, and with
a share of the general liabilities and expenses of HighMark not readily
identified as belonging to a particular Fund that are allocated to that Fund in
proportion to the relative net asset values of the respective Funds at the time
of allocation. The timing of allocations of general assets and general
liabilities and expenses of HighMark to particular Funds will be determined by
the Board of Trustees and will be in accordance with generally accepted
accounting principles. Determinations by the Board of Trustees as to the timing
of the allocation of general liabilities and expenses and as to the timing and
allocable portion of any general assets with respect to a particular Fund are
conclusive.

         Rule 18f-2 under the 1940 Act provides that any matter required to be
submitted to the holders of the outstanding voting securities of an investment
company such as HighMark shall not be deemed to have been effectively acted upon
unless approved by the holders of a majority of the outstanding Shares of each
Fund affected by the matter. For purposes of determining whether the approval of
a majority of the outstanding Shares of a Fund will be required in connection
with a matter, a Fund will be deemed to be affected by a matter unless it is
clear that the interests of each Fund in the matter are identical, or that the
matter does not affect any interest of the Fund.

         Under Rule 18f-2, the approval of an investment advisory agreement or
any change in fundamental investment policy would be effectively acted upon with
respect to a Fund only if approved by a majority of the outstanding Shares of
such Fund. However, Rule 18f-2 also provides that the ratification of
independent public accountants, the approval of principal underwriting
contracts, and the election of Trustees may be effectively acted upon by
Shareholders of HighMark voting without regard to series.

         Although not governed by Rule 18f-2, Retail Shares of a Fund have
exclusive voting rights with respect to matters pertaining to the Fund's
Distribution Plan.
    

Shareholder and Trustee Liability

   
         Under Massachusetts law, holders of units of interest in a business
trust may, under certain circumstances, be held personally liable as partners
for the obligations of the trust. However, HighMark's Declaration of Trust, as
amended, provides that Shareholders shall not be subject to any personal
liability for the obligations of HighMark, and that every written agreement,
obligation, instrument, or undertaking made by HighMark shall contain a
provision to the effect that the Shareholders are not personally liable
thereunder. The Declaration of Trust, as amended, provides for indemnification
out of the trust property of any Shareholder held personally liable solely by
reason of his or her being or having been a Shareholder. The Declaration of
Trust, as amended, also provides that HighMark shall, upon request, assume the
defense of any claim made against any Shareholder for any act or 
    



                                      -66-
<PAGE>   548

   
obligation of HighMark, and shall satisfy any judgment thereon. Thus, the risk
of a Shareholder incurring financial loss on account of Shareholder liability is
limited to circumstances in which HighMark itself would be unable to meet its
obligations.

         The Declaration of Trust, as amended, states further that no Trustee,
officer, or agent of HighMark shall be personally liable in connection with the
administration or preservation of the assets of the trust or the conduct of
HighMark's business, nor shall any Trustee, officer, or agent be personally
liable to any person for any action or failure to act except for his own bad
faith, willful misfeasance, gross negligence, or reckless disregard of his
duties.

         The Declaration of Trust, as amended, also provides that all persons
having any claim against the Trustees or HighMark shall look solely to the
assets of the trust for payment.

The Reorganization of the IRA Fund and  HighMark

         As of June 23, 1988, pursuant to an Agreement and Plan of
Reorganization between the IRA Fund, HighMark, and the Bank of California,
substantially all of the assets of the IRA Fund's Income Equity Portfolio, and
Bond Portfolio were transferred to HighMark's Income Equity Fund, and Bond Fund,
respectively, in exchange for such Fund's Shares, and substantially all of the
assets of the IRA Fund's Short Term Portfolio were transferred to one or more of
HighMark's Money Market Funds in exchange for Shares of such Money Market Fund
or Funds. Prior to June 23, 1988, the aggregate total return and average annual
total return of the Bond Fund and Income Equity Fund reflect the aggregate total
return and average annual total return of the IRA Fund Bond Portfolio and the
IRA Fund Income Equity Portfolio, respectively. The IRA Fund Bond Portfolio and
the IRA Fund Income Equity Portfolio both received investment advice from the
same division of the Bank of California now known as Pacific Alliance Capital
Management and had investment objectives, policies and restrictions
substantially similar to those of the Bond Fund and the Income Equity Fund,
respectively. However, potential investors should be aware that both the nature
and amount of fees and expenses of the IRA Fund Bond Portfolio and the Bond Fund
and those of the IRA Fund Income Equity Portfolio and the Income Equity Fund
differ.
    

Calculation of Performance Data

   
         From time to time, articles relating to the performance, rankings, and
other investment characteristics of mutual funds and their investment advisors,
including HighMark's Funds and the Advisor, may appear in national, regional,
and local publications. In particular, some publications may publish their own
rankings or performance reviews of mutual funds and their investment advisors,
including HighMark's Funds and the Advisor. Various mutual fund or market
indices may also serve as a basis for comparison of the performance of
HighMark's Funds with other mutual funds or mutual fund portfolios with
comparable investment objectives and policies. In addition to the indices
prepared by Dow Jones & Co., Inc. and Standard & Poor's Corporation, references
to or reprints from the following publications may be used in HighMark's
promotional literature: IBC/Donoghue's Money 
    



                                      -67-
<PAGE>   549

   
Fund Report, Ibbotson Associates of Chicago, MorningStar, Lipper Analytical
Services, Inc., CDA/Wiesenberger Investment Company Services, SEI Financial
Services, Callan Associates, Wilshire Associates, MONEY Magazine, Pension and
Investment Age, Forbes Magazine, Business Week, American Banker, Fortune
Magazine, Institutional Investor, Barron's National Business & Financial Weekly,
The Wall Street Journal, New York Times, San Francisco Chronicle and Examiner,
Los Angeles Times, U.S.A. Today, Sacramento Bee, Seattle Times, Seattle Daily
Journal of Commerce, Seattle Post/Intelligence, Seattle Business Journal, Tacoma
New Tribune, Bellevue Journal-American, The Oregonian, Puget Sound Business
Journal, Portland Chamber of Commerce and Portland Daily Journal of
Commerce/Portland Business Today. Shareholders may call toll free 1-800-433-6884
for current information concerning the performance of each of HighMark's Funds.

         From time to time, the Funds may include the following types of
information in advertisements, supplemental sales literature and reports to
Shareholders: (1) discussions of general economic or financial principles (such
as the effects of compounding and the benefits of dollar-cost averaging); (2)
discussions of general economic trends; (3) presentations of statistical data to
supplement such discussions; (4) descriptions of past or anticipated portfolio
holdings for one or more of the Funds within HighMark; (5) descriptions of
investment strategies for one or more of the Funds; (6) descriptions or
comparisons of various savings and investment products (including, but not
limited to, insured bank products, annuities, qualified retirement plans and
individual stocks and bonds), which may or may not include the Funds; (7)
comparisons of investment products (including the Funds) with relevant market or
industry indices or other appropriate benchmarks; (8) discussions of fund
rankings or ratings by recognized rating organizations; and (9) testimonials
describing the experience of persons that have invested in one or more of the
Funds. The Funds may also include calculations, such as hypothetical compounding
examples, which describe hypothetical investment results in such communications.
Such performance examples will be based on an express set of assumptions and are
not indicative of the performance of any of the Funds. In addition, the
California Tax-Free Fund may include charts comparing various tax-free yields
versus taxable yield equivalents at different income levels.

         Based on the seven-day period ended July 31, 1996 (the "base period"
for the Diversified Money Market Fund, the U.S. Government Money Market Fund,
the 100% U.S. Treasury Money Market Fund, and the California Tax -Free Money
Market Fund), the yield of the Diversified Money Market Fund's Retail Shares and
Fiduciary Shares was 4.76% and 4.76%, respectively, and the effective yield of
the Fund's Retail Shares and Fiduciary Shares was 4.87% and 4.87%, respectively;
the yield of the U.S. Government Money Market Fund's Retail Shares and Fiduciary
Shares was 4.60% and 4.61%, respectively, and the effective yield of the Fund's
Retail Shares and Fiduciary Shares was 4.71% and 4.72%, respectively; the yield
of the 100% U.S. Treasury Money Market Fund's Retail Shares and Fiduciary Shares
was 4.46% and 4.46% respectively, and the effective yield of the Fund's Retail
Shares and Fiduciary Shares was 4.56% and 4.56% respectively; and the yield of
the California Tax-Free Money Market Fund's Retail Shares 
    



                                      -68-
<PAGE>   550

   
and Fiduciary Shares was 2.71% and 2.71% respectively, and the effective yield
of the Fund's Retail Shares and Fiduciary Shares was 2.75% and 2.75%,
respectively. The yield of each Fund's Retail Shares and Fiduciary Shares,
respectively, was computed by determining the percentage net change, excluding  
capital changes, in the value of an investment in one Share of the Class over
the base period, and multiplying the net change by 365/7 (or approximately 52
weeks). The effective yield of each Fund's Retail Shares and Fiduciary Shares,
respectively, represents a compounding of the yield of the Class by adding 1 to
the number representing the percentage change in value of the investment during
the base period, raising that sum to a power equal to 365/7, and subtracting 1
from the result.

         Based on the thirty-day period ended July 31, 1996, the yield of the
Diversified Money Market Fund's Retail Shares and Fiduciary Shares was 4.73% and
4.73% respectively, and the effective yield of the Fund's Retail Shares and
Fiduciary Shares was 4.83% and 4.83%, respectively; the yield of the U.S.
Government Money Market Fund's Retail Shares and Fiduciary Shares was 4.59% and
4.60%, respectively, and the effective yield of the Fund's Retail Shares and
Fiduciary Shares was 4.69% and 4.70%, respectively; the yield of the 100% U.S.
Treasury Money Market Fund's Retail Shares and Fiduciary Shares was 4.47% and
4.47%, respectively, and the effective yield of the Fund's Retail Shares and
Fiduciary Shares was 4.56% and 4.56%, respectively; and the yield of the
California Tax- Free Money Market Fund's Retail Shares and Fiduciary Shares was
2.31% and 2.31%, respectively, and the effective yield of the Fund's Retail
Shares and Fiduciary Shares was 2.33% and 2.33%, respectively. The yield of each
Fund's Retail Shares and Fiduciary Shares, respectively, was computed by
determining the percentage net change, excluding capital changes, in the value
of an investment in one Share of the Class over the thirty-day period, and
multiplying the net change by 365/30 (or approximately twelve months). The
effective yield of each Fund's Retail Shares and Fiduciary Shares, respectively,
represents a compounding of the yield of the Class by adding 1 to the number
representing the percentage change in value of the investment during the
thirty-day period, raising that sum to a power equal to 365/30, and subtracting
1 from the result.

         Based on the seven-day period ended July 31, 1996, the tax-equivalent
yield of the California Tax-Free Money Market Fund's Retail Shares and Fiduciary
Shares was 4.49% and 4.49% respectively (using a federal income tax rate of
39.6%), and 5.49% and 5.49% respectively (using a federal income tax rate of
39.6% and a California personal income tax rate of 11%), and the tax-equivalent
effective yield of the Fund's Retail Shares and Fiduciary Shares was 4.55% and
4.55%, respectively (using a federal income tax rate of 39.6%), and 5.57% and
5.57%, respectively (using a federal income tax rate of 39.6% and a California
personal income tax rate of 11%).

         Based on the thirty-day period ended July 31, 1996, the tax-equivalent
yield of the California Tax-Free Money Market Fund's Retail Shares and Fiduciary
Shares was 3.82% and 3.82%, respectively (using a federal income tax rate of
39.6%), and 4.68% and 4.68%, respectively (using a federal income tax rate of
39.6% and a California personal income tax 
    



                                      -69-
<PAGE>   551

   
rate of 11%), and the tax-equivalent effective yield of the Fund's Retail Shares
and Fiduciary Shares was 3.86% and 3.86%, respectively (using a federal income
tax rate of 39.6%), and 4.72% and 4.72%, respectively (using a federal income
tax rate of 39.6% and a California personal income tax rate of 11%).

         The tax-equivalent yield of the Retail Shares and Fiduciary Shares,
respectively, of the California Tax-Free Fund was computed by dividing that
portion of the yield of the Class that is tax-exempt by 1 minus the stated
income tax rate (or rates) and adding the product to that portion, if any, of
the yield of the Class that is not tax-exempt. The tax-equivalent effective
yield of the Fund's Retail Shares and Fiduciary Shares, respectively, was
computed by dividing that portion of the effective yield of the Class which is
tax-exempt by 1 minus the stated income tax rate (or rates) and adding to that
portion, if any, of the effective yield of the Class that is not tax-exempt.

         For the year ended July 31, 1996, the one-year average annual total
return of the Diversified Money Market Fund Retail and Fiduciary shares was
5.01%, of the U.S. Government Money Market Fund Retail and Fiduciary shares was
4.86% and 4.88%, respectively, of the 100% U.S. Treasury Money Market Fund
Retail and Fiduciary shares was 4.74%, and of the California Tax-Free Money
Market Fund Retail and Fiduciary shares was 2.91%.

         For the period ended July 31, 1996, the five-year average annual total
return of the Diversified Money Market Fund's Retail and Fiduciary shares was
4.00%; of the U.S. Government Money Market Fund's Retail and Fiduciary shares
was 3.88%; of the 100% U.S. Treasury Money Market Fund's Retail and Fiduciary
shares was 3.78%; and of the California Tax-Free Money Market Fund's Retail and
Fiduciary shares was 2.68%.

         For the period from August 10, 1987 (the date on which the Diversified
Money Market Fund, the U.S. Government Money Market Fund and the 100% U.S.
Treasury Money Market Fund commenced operations) through July 31, 1996, the
average annual total return of the Diversified Money Market Fund Retail and
Fiduciary shares, the U.S. Government Money Market Fund Retail and Fiduciary
shares and the 100% U.S. Treasury Money Market Fund Retail and Fiduciary shares
was 5.66%, 5.48% and 5.38%, respectively. For the period from August 11, 1987
(the date on which the California Tax-Free Money Market Fund commenced
operations) through July 31, 1996, the average annual total return of the
California Tax-Free Money Market Fund Retail and Fiduciary shares was 3.69%.

         Prior to June 23, 1988 (the date on which the Income Equity Fund and
the Bond Fund commenced operations as a result of the reorganization involving
the IRA Fund Income Equity Portfolio and the IRA Fund Bond Portfolio,
respectively, as described under "Additional Information - The Reorganization of
the IRA Fund and HighMark" above), the total return
    



                                      -70-
<PAGE>   552

   
and average annual total return of the Income Equity Fund and the Bond Fund
reflects the total return and average annual total return of the IRA Fund Income
Equity Portfolio, and the IRA Fund Bond Portfolio, respectively. Each IRA Fund
Portfolio received investment advice from the same division of the Bank of
California now known as Pacific Alliance Capital Management and had
substantially similar investment objectives, policies, and restrictions of the
Fund into which it was reorganized. However, potential investors in the Income
Equity Fund, and the Bond Fund should be aware that both the nature and amount
of fees and expenses of the IRA Fund Income Equity Portfolio, and the IRA Fund
Bond Portfolio differ from the Fund into which the respective IRA Fund
Portfolios were reorganized. See "Management of HighMark Investment Advisor" and
the Statements of Operations in the Financial Statements with respect to the
Income Equity Fund, and the Bond Fund and the IRA Fund Income Equity Portfolio,
and the IRA Fund Bond Portfolio for the applicable period ended July 31, 1989
and June 22, 1988 contained in this Statement of Additional Information.

         Each Equity Fund and Fixed Income Fund offered a single class of shares
throughout the periods shown below. The performance figures relating to the
Retail Shares have been adjusted, however, to give effect to the sales charge
and distribution fee to which the Retail Shares are subject. Because only Retail
Shares bear the expense of the fee, if any, under the Distribution Plan and a
sales charge, total return and yield relating to a Fund's Retail Shares will be
lower than that relating to the Funds' Fiduciary Shares.

         For the one year period ended July 31, 1996, the average annual total
return of the Retail and Fiduciary Shares of the Income Equity Fund was 12.93%
(18.21% without a load) and 18.25%, respectively, and of the Bond Fund was 1.79%
(4.95% without a load) and 4.81%, respectively. For the five-year period ended
July 31, 1996, the average annual total return of the Retail and Fiduciary
Shares of the Income Equity Fund was 11.99% (13.02% without a load) and 12.98%,
respectively, and of the Bond Fund was 6.15% (6.80% without a load) and 6.95%,
respectively. For the ten year period ended July 31, 1996, the average annual
total return of the Retail and Fiduciary Shares of the Income Equity Fund was
12.17% (13.02% without a load) and 12.66%, respectively. For the ten year period
ended July 31, 1996, the average annual total return of the Retail and Fiduciary
Shares of the Bond Fund was 6.71% (7.03% without a load) and 7.10%,
respectively.

         For the one year period ended July 31, 1996, the average annual total
return of the Retail and Fiduciary Shares of the Growth Fund was 7.80% (12.88%
without a load) and 12.72%, respectively and of the Retail and Fiduciary Shares
of the Balanced Fund was 5.93% (10.94% without a load) and 11.06% respectively.

         For the period beginning November 18, 1993 (commencement of operations)
and ending July 31, 1996, the average annual total return of the Retail Shares
and Fiduciary Shares of the Growth Fund was 10.97% (12.87% without a load) and
12.81%, respectively.
    

                                      -71-
<PAGE>   553

   
         For the period beginning November 14, 1993 (commencement of operations)
and ending July 31, 1996, the aggregate total return of the Retail Shares and
Fiduciary Shares of the Balanced Fund was 7.66% (9.49% without a load) and
9.75%, respectively.
    

         Each Fund's respective average annual total return and/or aggregate
total return was calculated by determining the change in the value of a
hypothetical $1,000 investment in the Fund over the applicable period
(utilizing, when appropriate, performance information from the applicable IRA
Fund Portfolio prior to June 23, 1988) that would equate the initial amount
invested to the ending redeemable value of the investment; in the case of the
average annual total return, this amount (representing the Fund's total return)
was then averaged over the relevant number of years. The ending redeemable value
includes dividends and capital gain distributions reinvested at net asset value.
The resulting percentages indicate the positive or negative investment results
that an investor would have experienced from changes in Share price and
reinvestment of dividends and capital gains distributions.

   
         For the thirty-day period ended July 31, 1996, the yield for the Retail
and Fiduciary Shares of the Growth Fund was 0.74% (0.77% without a load) and
0.77%, respectively; for the Retail and Fiduciary Shares of the Income Equity
Fund was 2.86% (2.99% without a load) and 2.80%, respectively; for the Retail
and Fiduciary Shares of the Balanced Fund was 3.41% (3.57% without a load) and
3.57%, respectively; and for the Retail and Fiduciary Shares of the Bond Fund
was 5.90% (6.08% without a load) and 6.08%, respectively. The Fund's "yield"
(referred to as "standardized yield") for a given 30-day period for a class of
shares is calculated using the following formula set forth in rules adopted by
the Commission that apply to all funds that quote yields:
    

         Standardized Yield = 2 [( a-b + 1)to the 6th power - 1]
                                   ---
                                   cd

The symbols above represent the following factors:

a =      dividends and interest earned during the 30-day period.
b =      expenses accrued for the period (net of reimbursements).
c =      the average daily number of shares of that class outstanding during
         the 30-day period that were entitled to receive dividends.
d =      the maximum offering price per share of the class on the last day of 
         the period, adjusted for undistributed net investment income.

         The standardized yield of a class of shares for a 30-day period may
differ from its yield for any other period. The Commission formula assumes that
the standardized yield for a 30-day period occurs at a constant rate for a
six-month period and is annualized at the end of the six-month period. This
standardized yield is not based on actual distributions paid by the Fund to
shareholders in the 30-day period, but is a hypothetical yield based upon the
net investment income from the Fund's portfolio investments calculated for that
period. Because



                                      -72-
<PAGE>   554

each class of shares is subject to different expenses, it is likely that the
standardized yields of the Fund classes of shares will differ.

   
         For the one year period ended July 31, 1996, the distribution rate
(including capital gains and excluding a sales charge) of the Income Equity Fund
was 7.57% for Retail Shares and 7.58% for Fiduciary Shares and of the Bond Fund
was 6.37% for Retail Shares and 6.32% for Fiduciary Shares. For the one year
period ended July 31, 1996, the distribution rate (excluding capital gains and a
sales charge) of the Income Equity Fund was 2.94% for the Retail and Fiduciary
Shares, and of the Bond Fund was 6.37 for the Retail Shares and 6.32% for the
Fiduciary Shares. For the one year period ended July 31, 1996, the distribution
rate (including capital gains and a sales load) of the Income Equity Fund was
7.23% and of the Bond Fund was 6.18%. For the one year period ended July 31,
1996 the distribution rate (excluding capital gains and including a load) of the
Income Equity Fund was 2.80% and of the Bond Fund was 6.18%. The distribution
rate for each Fund is determined by dividing the income distributions and, where
the distribution rate includes capital gains distributions, capital gains
distributions on a Share of the Fund over a twelve-month period by the per Share
net asset value of the Fund on the last day of the period and annualized in the
case of Funds which have not had a full year of results.

         All performance information presented is based on past performance and
does not predict future performance. No performance information is presented for
the Value Momentum, Blue Chip Growth, Emerging Growth, International Equity,
Intermediate-Term Bond, Government Securities, Convertible Securities and
California Intermediate Tax-Free Bond Funds because they had not commenced
operations as of the date of this Statement of Additional Information.

 Miscellaneous

         HighMark is not required to hold meetings of Shareholders for the
purpose of electing Trustees except that (i) HighMark is required to hold a
Shareholders' meeting for the election of Trustees at such time as less than a
majority of the Trustees holding office have been elected by Shareholders and
(ii) if, as a result of a vacancy on the Board of Trustees, less than two-thirds
of the Trustees holding office have been elected by the Shareholders, that
vacancy may be filled only by a vote of the Shareholders. In addition, Trustees
may be removed from office by a written consent signed by the holders of Shares
representing two-thirds of the outstanding Shares of HighMark at a meeting duly
called for the purpose, which meeting shall be held upon the written request of
the holders of Shares representing not less than 10% of the outstanding Shares
of HighMark. Upon written request by the holders of Shares representing 1% of
the outstanding Shares of HighMark stating that such Shareholders wish to
communicate with the other Shareholders for the purpose of obtaining the
signatures necessary to demand a meeting to consider removal of a Trustee,
HighMark will provide a list of Shareholders or disseminate appropriate
materials (at the expense of the
    



                                      -73-
<PAGE>   555

requesting Shareholders). Except as set forth above, the Trustees may continue
to hold office and may appoint successor Trustees.

   
          HighMark is registered with the Securities and Exchange Commission as
a management investment company. Such registration does not involve supervision
by the Securities and Exchange Commission of the management or policies of
HighMark.
    

         The Prospectuses and this Statement of Additional Information omit
certain of the information contained in the Registration Statement filed with
the Securities and Exchange Commission. Copies of such information may be
obtained from the Securities and Exchange Commission upon payment of the
prescribed fee.

   
         The 1996 Annual Report to Shareholders of HighMark is incorporated
herein by reference. This Report includes audited financial statements for the
fiscal year ended July 31, 1996. Upon the incorporation by reference herein of
such Annual Report, the opinion in such Annual Report of independent accountants
is incorporated herein by reference and such Annual Report's financial
statements are incorporated by reference herein in reliance upon the authority
of such accountants as experts in auditing and accounting.
    

         The Prospectuses and this Statement of Additional Information are not
an offering of the securities herein described in any state in which such
offering may not lawfully be made.

         No salesperson, dealer, or other person is authorized to give any
information or make any representation other than those contained in the
Prospectuses and this Statement of Additional Information.

   
         As of November 22, 1996, HighMark believes that the trustees and
officers of HighMark, as a group, owned less than one percent of the Shares of
any Fund of HighMark. As of November 22, 1996, HighMark believes that Union Bank
of California was the shareholder of record of 87.57% of the Fiduciary Shares of
the Growth Fund, 73.24% of the Fiduciary Shares of the Income Equity Fund,
97.91% of the Fiduciary Shares of the Balanced Fund, 88.27% of the Fiduciary
Shares of the Bond Fund, 93.46% of the Fiduciary Shares of the U.S. Government
Money Market Fund, 98.42%of the Fiduciary Shares of the Diversified Money Market
Fund, 95.03% of the Fiduciary Shares of the 100% U.S. Treasury Money Market Fund
and substantially all of the Fiduciary Shares of the California Tax-Free Money
Market Fund. As of November 22, 1996, HighMark believes that Union Bank of
California had voting power with respect to 61.00% of the Growth Fund Fiduciary
Shares, 43.30% of the Income Equity Fund Fiduciary Shares, 38.89% of the
Balanced Fund Fiduciary Shares, 47.51% of the Bond Fund Fiduciary Shares, 15.46%
of the Diversified Money Market Fund Fiduciary Shares, 19.96% of the 100% U.S.
Treasury Money Market Fund Fiduciary Shares, and 18.12% of the California
Tax-Free Money Market Fund Fiduciary Shares.
    

                                      -74-
<PAGE>   556

   
         The table below indicates each additional person known by HighMark to
own beneficially 5% or more of the Shares of the following Funds of HighMark as
of November 22, 1996:
<TABLE>
<CAPTION>

                          5% or More Beneficial Owners
                          ----------------------------

                                                                                              Percent of
                                                                                              Beneficial
Name and Address                                                                               Ownership
- ----------------                                                                               ---------

                                   Growth Fund
                                   -----------

                                  Retail Shares
                                  -------------
<S>                                                                                            <C>
National Financial Services                                                                          7.67%
Corporation for the Exclusive
Benefit of Our Customers and
Bill S. Tsutagawa
Yuriko Tsutagawa
2242 Valley Rd.
Oceanside, CA  92056

National Financial Services                                                                          5.55%
Corporation for the Exclusive
Benefit of Our Customers and
IRA of John A. Dito
550 S. Hope St. 2000
Los Angeles, CA  90071

National Financial Services                                                                          5.92%
Corporation for the Exclusive
Benefit of Our Customers and
Douglas S. Querin
4228 SW Selling Court
Portland, OR  97221

National Financial Services                                                                          7.31%
Corporation for the Exclusive
Benefit of Our Customers and
IRA of John A. Dito
550 S. Hope St. 2000
Los Angeles, CA  90071
</TABLE>

    



                                      -75-
<PAGE>   557



<TABLE>
<S>                            <C>                                                              <C>
   
                                Fiduciary Shares
                                ----------------

Union Bank of California, N.A.                                                                      32.39%
Capital Accumulation Plan
400 California St.
San Francisco, CA 94104

Union Bank of California N.A.                                                                       17.51%
Personal Retirement  Options Plan
400 California St.
San Francisco, CA 94104




                               Income Equity Fund
                               ------------------
                                  Retail Shares
                                  -------------

National Financial Services                                                                          9.76%
Corporation for the Exclusive
Benefit of Our Customers and
Richard W. Killion
c/o Killion Industries
2811 La Mirada Dr.
Vista, CA  92083

                                Fiduciary Shares
                                ----------------

Union Bank of California N.A.                                                                       18.07%
Capital Accumulation Plan
400 California St.
San Francisco, CA 94104

Union Bank of California N.A.                                                                        8.57%
Personal Retirement Options Plan
400 California St.
San Francisco, CA 94104


                                  Balanced Fund
                                  -------------
                                  Retail Shares
                                  -------------

National Financial Services                                                                          7.75%
    
</TABLE>


                                      -76-
<PAGE>   558
<TABLE>
<S>                            <C>                                                              <C>
   

Corporation for the Exclusive
Benefit of Our Customers and
Rosalind Fahmy
2691 Pocatello
Rolland Heights, CA  91748

National Financial Services                                                                         44.99%
Corporation for the Exclusive
Benefit of Our Customers and
John F. Roach
587 Perugia Way
Los Angeles, CA  90077

National Financial Services                                                                          5.53%
Corporation for the Exclusive
Benefit of Our Customers and
Yoko Fujii, Trustee
Tadashi Yoko Fujii
1405 Lamont Ave.
Thousand Oaks, CA  91362

                                Fiduciary Shares
                                ----------------

Union Bank of California N.A.                                                                       25.13%
Capital Accumulation Plan
400 California St.
San Francisco, CA 94104

Union Bank of California N.A.                                                                       12.45%
Personal Retirement Options Plan
400 California St.
San Francisco, CA 94104

EBT/Employee Benefits                                                                                6.63%
Accounting
Attn:  Joyce Carroll
475 Sansome Street, 12th Floor
San Francisco, CA  94111
    
</TABLE>


                                      -77-
<PAGE>   559

<TABLE>
<S>                            <C>                                                              <C>
   
                                    Bond Fund
                                    ---------
                                  Retail Shares
                                  -------------

National Financial Services                                                                         22.01%
Corporation for the Exclusive
Benefit of Our Customers and
Mildred Walsh
Stephanie McGowan
3701 E. Valley St.
Seattle, WA  98112

National Financial Services                                                                          6.00%
Corporation for the Exclusive
Benefit of Our Customers and
Union Bank of California, Cust.
IRA of Charles L. Masingill
2218 Windward Lane
Newport, CA  92660

National Financial Services                                                                          5.50%
Corporation for the Exclusive
Benefit of Our Customers and
Wallace Allred
Norma Allred
2250 N. Broadway, No. 48
Escondido, CA  92026

National Financial Services                                                                          5.88%
Corporation for the Exclusive
Benefit of Our Customers and
Union Bank of California, Cust.
IRA of James Harris
1212 Christian Valley Rd.
Auburn, CA  95602
</TABLE>
    


                                      -78-
<PAGE>   560

<TABLE>
<S>                            <C>                                                              <C>
   
National Financial Services                                                                          7.64%
Corporation for the Exclusive
Benefit of Our Customers and
Union Bank of California, Cust.
Frederick V. Betts
800 Financial Center
1215 Fourth Ave.
Seattle, WA  98161

National Financial Services                                                                          5.52%
Corporation for the Exclusive
Benefit of Our Customers and
Marla J. Arata
7801 Oakmont Drive
Modesto, CA  95356

National Financial Services Corporation                                                              5.63%
for the Exclusive Benefit of Our Customers and
C. Dan Hunter
Irene W. Hunter
9335 N.E. 30th Street
Bellevue, WA  98004

                                Fiduciary Shares
                                ----------------

Union Bank of California N.A.                                                                       11.88%
Capital Accumulation Plan
400 California St.
San Francisco, CA 94104

Union Bank of California N.A.                                                                        5.88%
Personal Retirement Options Plan
400 California St.
San Francisco, CA 94104
</TABLE>
    

                                      -79-
<PAGE>   561
<TABLE>
<S>                        <C>                                                              <C>
   

                          Diversified Money Market Fund
                          -----------------------------
                                  Retail Shares
                                  -------------



National Financial Services                                                                         95.89%
Corporation for the Exclusive
Benefit of Our Customers
Church Street Station
P.O. Box 3908
New York, NY  10008-3908


                                Fiduciary Shares
                                ----------------

Oregon Laborers Employers Trust                                                                     5.14%
Gary Case, Plan Administrator
2929 N.W. 31st Street
Portland, OR  97210

                        U.S. Government Money Market Fund
                        ---------------------------------
                                  Retail Shares
                                  -------------

National Financial Services                                                                         89.26%
Corporation for the Exclusive
Benefit of Our Customers
Church Street Station
P.O. Box 3908
New York, NY  10008-3908




                                Fiduciary Shares
                                ----------------

Spitzel/Anderson Escrow                                                                              8.21%
3700 Wilshire Blvd. #820
Los Angeles, CA  90010

The Macneal-Schwendler Corp.                                                                         5.99%
815 Colorado Blvd.
Los Angeles, CA  90041

</TABLE>
    

                                      -80-
<PAGE>   562
<TABLE>
<S>                            <C>                                                              <C>
   

Joseph A. Brislin                                                                                   14.61%
6825 S.W. Sandburg Street
Tigard, OR  97223

                      100% U.S. Treasury Money Market Fund
                      ------------------------------------

                                  Retail Shares
                                  -------------

National Financial Services                                                                         98.98%
Corporation for the Exclusive
Benefit of Our Customers
Church Street Station
P.O. Box 3908
New York, NY  10008-3908


                                Fiduciary Shares
                                ----------------

EBT/Employee Benefits Accounting                                                                     5.70%
Attn:  Joyce Carroll
475 Sansome Street, 12th Floor
San Francisco, CA  94111


                      California Tax-Free Money Market Fund
                      -------------------------------------

                                  Retail Shares
                                  -------------

National Financial Services                                                                         94.81%
Corporation for the Exclusive
Benefit of Our Customers
Church Street Station
P.O. Box 3908
New York, NY  10008-3908


</TABLE>
    

                                      -81-
<PAGE>   563


<TABLE>
<S>                            <C>                                                              <C>
   
                                Fiduciary Shares
                                ----------------

 Charles and Mary Page                                                                               5.28%
 Revocable Trust
 501 Via Casitas - #225
 Kenfield, CA  94904
<FN>

         No person other than Union Bank of California and the beneficial owners
listed above own as of record more than 5% of the Fiduciary or Retail Shares of
a Fund.

</TABLE>
    

                                      -82-
<PAGE>   564


                                    APPENDIX

The nationally recognized statistical rating organizations (individually, an
"NRSRO") that may be utilized by the Advisor with regard to portfolio
investments for the Funds include Moody's Investors Service, Inc. ("Moody's"),
Standard & Poor's Corporation ("S&P"), Duff & Phelps, Inc. ("Duff"), Fitch
Investors Service, Inc. ("Fitch"), IBCA Limited and its affiliate, IBCA Inc.
(collectively, "IBCA"), and Thomson BankWatch, Inc. ("Thomson"). Set forth below
is a description of the relevant ratings of each such NRSRO. The NRSROs that may
be utilized by the Advisor and the description of each NRSRO's ratings is as of
the date of this Statement of Additional Information, and may subsequently
change.

Long-Term Debt Ratings (may be assigned, for example, to corporate and municipal
bonds)

   
Description of the four highest long-term debt ratings by Moody's (Moody's
applies numerical modifiers (1, 2, and 3) in each rating category to indicate
the security's ranking within the category):
    

         Aaa      Bonds which are rated Aaa are judged to be of the best
                  quality. They carry the smallest degree of investment risk and
                  are generally referred to as "gilt edged." Interest payments
                  are protected by a large or by an exceptionally stable margin
                  and principal is secure. While the various protective elements
                  are likely to change, such changes as can be visualized are
                  most unlikely to impair the fundamentally strong position of
                  such issues.

         Aa       Bonds which are rated Aa are judged to be of high quality by
                  all standards. Together with the Aaa group they comprise what
                  are generally known as high grade bonds. They are rated lower
                  than the best bonds because margins of protection may not be
                  as large as in Aaa securities or fluctuation of protective
                  elements may be of greater amplitude or there may be other
                  elements present which make the long-term risk appear somewhat
                  larger than in Aaa securities.

         A        Bonds which are rated A possess many favorable investment
                  attributes and are to be considered as upper-medium-grade
                  obligations. Factors giving security to principal and interest
                  are considered adequate, but elements may be present which
                  suggest a susceptibility to impairment some time in the
                  future.

   
         Baa      Bonds which are rated Baa are considered as medium-grade
                  obligations (i.e., they are neither highly protected nor
                  poorly secured). Interest payments and principal security
                  appear adequate for the present but certain protective
                  elements may be lacking or may be characteristically
                  unreliable over any great length of time. Such bonds lack
                  outstanding investment characteristics and in fact have
                  speculative characteristics as well.
    


                                      -83-
<PAGE>   565


   
- -Description of the four highest long-term debt ratings by S&P (S&P may apply a
plus (+) or minus (-) to a particular rating classification to show relative
standing within that classification):
    

         AAA      Debt rated AAA has the highest rating assigned by S&P.
                  Capacity to pay interest and repay principal is extremely
                  strong.

         AA       Debt rated AA has a very strong capacity to pay interest and
                  repay principal and differs from the higher rated issues only
                  in small degree.

         A        Debt rated A has a strong capacity to pay interest and repay
                  principal although it is somewhat more susceptible to the
                  adverse effects of changes in circumstances and economic
                  conditions than debt in higher rated categories.

   
         BBB      Debt rated BBB is regarded as having an adequate capacity to
                  pay interest and repay principal. Whereas it normally exhibits
                  adequate protection parameters, adverse economic conditions or
                  changing circumstances are more likely to lead to a weakened
                  capacity to pay interest and repay principal for debt in this
                  category than in higher rated categories.

Description of the four highest long-term debt ratings by Duff:
    

         AAA      Highest credit quality. The risk factors are negligible being
                  only slightly more than for risk-free U.S. Treasury debt.

         AA+      High credit quality. Protection factors are strong. AA Risk
                  is modest but may vary slightly from time to time A- because
                  of economic conditions.

         A+       Protection factors are average but adequate. However, A risk
                  factors are more variable and greater in periods A- of
                  economic stress.

   
         BBB      Below average protection factors. Still considered sufficient 
                  for prudent investment.

Description of the four highest long-term debt ratings by Fitch (plus or minus
signs are used with a rating symbol to indicate the relative position of the
credit within the rating category):
    

         AAA      Bonds considered to be investment grade and of the highest
                  credit quality. The obligor has an exceptionally strong
                  ability to pay interest and repay principal, which is unlikely
                  to be affected by reasonably foreseeable events.

         AA       Bonds considered to be investment grade and of very high
                  credit quality. The obligor's ability to pay interest and 
                  repay principal is very strong, although not



                                      -84-
<PAGE>   566



   
                  quite as strong as bonds rated "AAA." Because bonds rated in
                  the "AAA" and "AA" categories are not significantly vulnerable
                  to foreseeable future developments, short-term debt of these
                  issues is generally rated "F-1+."
    

         A        Bonds considered to be investment grade and of high credit
                  quality. The obligor's ability to pay interest and repay
                  principal is considered to be strong, but may be more
                  vulnerable to adverse changes in economic conditions and
                  circumstances than bonds with higher ratings.

   
         BBB      Bonds considered to be investment grade and of satisfactory
                  credit quality. The obligor's ability to pay interest and
                  repay principal is considered to be adequate. Adverse changes
                  in economic conditions and circumstances, however, are more
                  likely to have an adverse impact on thee bonds and therefore,
                  impair timely payment. The likelihood that the ratings of
                  these bonds will fall below investment grade is higher than
                  for bonds with higher ratings.

IBCA's description of its four highest long-term debt ratings:
    

         AAA      Obligations for which there is the lowest expectation of
                  investment risk. Capacity for timely repayment of principal
                  and interest is substantial such that adverse changes in
                  business, economic or financial conditions are unlikely to
                  increase investment risk significantly.

         AA       Obligations for which there is a very low expectation of
                  investment risk. Capacity for timely repayment of principal
                  and interest is substantial. Adverse changes in business,
                  economic, or financial conditions may increase investment risk
                  albeit not very significantly.

         A        Obligations for which there is a low expectation of investment
                  risk. Capacity for timely repayment of principal and interest
                  is strong, although adverse changes in business, economic or
                  financial conditions may lead to increased investment risk.

   
         BBB      Obligations for which there is currently a low expectation of
                  investment risk. Capacity for timely repayment of principal
                  and interest is adequate, although adverse changes in
                  business, economic or financial conditions are more likely to
                  lead to increased investment risk than for obligations in
                  higher categories.

Thomson's description of its four highest long-term debt ratings (Thomson may
include a plus (+) or minus (-) designation to indicate where within the
respective category the issue is placed):
    



                                      -85-
<PAGE>   567

   

         AAA      The highest category: indicates ability to repay principal and
                  interest on a timely basis is very high.

         AA       The second highest category: indicates a superior ability to
                  repay principal and interest on a timely basis with limited
                  incremental risk versus issues rated in the highest category.

         A        The third highest category: indicates the ability to repay
                  principal and interest is strong. Issues rated "A" could be
                  more vulnerable to adverse developments (both internal and
                  external) than obligations with higher ratings.

         BBB      Lowest investment grade category: indicates an acceptable
                  capacity to repay principal and interest. Issues rated "BBB"
                  are, however, more vulnerable to adverse developments (both
                  internal and external) than obligations with higher ratings.
    

Short-Term Debt Ratings (may be assigned, for example, to commercial paper,
master demand notes, bank instruments, and letters of credit)

Moody's description of its three highest short-term debt ratings:

         Prime-1     Issuers rated Prime-1 (or supporting institutions)
                     have a superior capacity for repayment of senior
                     short-term promissory obligations. Prime-1 repayment
                     capacity will normally be evidenced by many of the
                     following characteristics:

                        -  Leading market positions in well-established 
                           industries.

                        -  High rates of return on funds employed.

                        -  Conservative capitalization structures with moderate
                           reliance on debt and ample asset protection.

                        -  Broad margins in earnings coverage of fixed financial
                           charges and high internal cash generation.

                        -  Well-established access to a range of financial 
                           markets and assured sources of alternate liquidity.

         Prime-2     Issuers rated Prime-2 (or supporting institutions)
                     have a strong capacity for repayment of senior
                     short-term debt obligations. This will normally be
                     evidenced by many of the characteristics cited above
                     but to a lesser degree. Earnings trends and coverage
                     ratios, while sound, may be more



                                      -86-
<PAGE>   568


             subject to variation. Capitalization characteristics, while still
             appropriate, may be more affected by external conditions. Ample
             alternate liquidity is maintained.

     Prime-3 Issuers rated Prime-3 (or supporting institutions) have an 
             acceptable ability for repayment of senior short-term obligations.
             The effect of industry characteristics and market compositions may
             be more pronounced. Variability in earnings and profitability may 
             result in changes in the level of debt protection measurements and
             may require relatively high financial leverage. Adequate 
             alternate liquidity is maintained.

S&P's description of its three highest short-term debt ratings:

     A-1     This designation indicates that the degree of safety regarding 
             timely payment is strong. Those issues determined to have 
             extremely strong safety characteristics are denoted with a plus 
             sign (+).

     A-2     Capacity for timely payment on issues with this designation is
             satisfactory. However, the relative degree of safety is not as 
             high as for issues designated "A-1."

     A-3     Issues carrying this designation have adequate capacity for timely
             payment. They are, however, more vulnerable to the adverse effects 
             of changes in circumstances than obligations carrying the higher
             designations.

Duff's description of its three highest short-term debt ratings (Duff
incorporates gradations of "1+" (one plus) and "1-" (one minus) to assist
investors in recognizing quality differences within the highest rating
category):

     Duff 1+ Highest certainty of timely payment. Short-term liquidity, 
             including internal operating factors and/or access to alternative
             sources of funds, is outstanding, and safety is just below 
             risk-free U.S. Treasury short-term obligations.

     Duff 1  Very high certainty of timely payment. Liquidity factors are 
             excellent and supported by good fundamental protection factors.
             Risk factors are minor.

     Duff 1- High certainty of timely payment. Liquidity factors are strong 
             and supported by good fundamental protection factors. Risk factors
             are very small.



                                      -87-
<PAGE>   569


    Duff 2    Good certainty of timely payment. Liquidity factors and company
              fundamentals are sound. Although ongoing funding needs may enlarge
              total financing requirements, access to capital markets is good. 
              Risk factors are small.

    Duff 3    Satisfactory liquidity and other protection factors qualify 
              issue as to investment grade. Risk factors are larger and 
              subject to more variation. Nevertheless, timely payment is 
              expected.

Fitch's description of its three highest short-term debt ratings:

    F-1+      Exceptionally Strong Credit Quality. Issues assigned this 
              rating are regarded as having the strongest degree of 
              assurance for timely payment.

    F-1       Very Strong Credit Quality. Issues assigned this rating 
              reflect an assurance of timely payment only slightly less 
              in degree than issues rated F-1+.

    F-2       Good Credit Quality. Issues assigned this rating have a 
              satisfactory degree of assurance for timely payment, but the 
              margin of safety is not as great as for issues assigned F-1+ 
              or F-1 ratings.

    F-3       Fair Credit Quality. Issues assigned this rating have 
              characteristics suggesting that the degree of assurance for 
              timely payment is adequate, however, near-term adverse changes 
              could cause these securities to be rated below investment grade.

IBCA's description of its three highest short-term debt ratings:

    A+        Obligations supported by the highest capacity for timely 
              repayment.

    A1        Obligations supported by a very strong capacity for timely
              repayment.

    A2        Obligations supported by a strong capacity for timely
              repayment, although such capacity may be susceptible
              to adverse changes in business, economic or financial
              conditions.

Thomson's description of its three highest short-term ratings:

    TBW-1     The highest category; indicates a very high degree of 
              likelihood that principal and interest will be paid on a 
              timely basis.


                                      -88-


<PAGE>   570



         TBW-2    The second highest category; while the degree of safety 
                  regarding timely repayment of principal and interest is 
                  strong, the relative degree of safety is not as high as
                  for issues rated "TBW-1".

         TBW-3    The lowest investment grade category; indicates that while 
                  more susceptible to adverse developments (both internal and
                  external) than obligations with higher ratings, capacity to 
                  service principal and interest in a timely fashion is 
                  considered adequate.

SHORT-TERM LOAN/MUNICIPAL NOTE RATINGS

         Moody's description of its two highest short-term loan/municipal note
ratings:

MIG-1/VMIG-1     This designation denotes best quality. There is present 
                 strong protection by established cash flows, superior 
                 liquidity support or demonstrated broad-based access to the 
                 market for refinancing.

MIG-2/VMIG-2     This designation denotes high quality. Margins of protection 
                 are ample although not so large as in the preceding group.

S&P's description of its two highest municipal note ratings:

         SP-1    Very strong or strong capacity to pay principal and interest.
                 Those issues determined to possess overwhelming safety 
                 characteristics will be given a plus (+) designation.

         SP-2    Satisfactory capacity to pay principal and interest.


                                      -89-


<PAGE>   571




   
INDEPENDENT AUDITORS' REPORT FOR  HIGHMARK  FUNDS FOR
THE YEAR ENDED JULY 31, 1996
    


                                      -90-


<PAGE>   572




   
FINANCIAL STATEMENTS FOR  HIGHMARK  FUNDS FOR
THE PERIODS ENDED JULY 31, 1996
    


                                      -91-


<PAGE>   573
[LOGO]


 
REPORT OF INDEPENDENT AUDITORS'
 
TO THE BOARD OF TRUSTEES AND SHAREHOLDERS OF
THE HIGHMARK GROUP
 
We have audited the accompanying statements of assets and liabilities including
the schedules of portfolio investments of The HighMark Group (the "Funds"),
including Diversified Obligations Fund, U.S. Government Obligations Fund, 100%
U.S. Treasury Obligations Fund, California Tax-Free Fund, Bond Fund, Income
Equity Fund, Balanced Fund, and Growth Fund, as of July 31, 1996, the related
statements of operations, statements of changes in net assets and the financial
highlights for the year then ended. These financial statements and financial
highlights are the responsibility of the Funds' management. Our responsibility
is to express an opinion on these financial statements based on our audits. The
financial highlights for the other years presented and the statement of changes
in net assets for the year ended July 31, 1995 were audited by other auditors
whose report, dated September 22, 1995, expressed an unqualified opinion on
those statements.
 
We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements and financial
highlights are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements. Our procedures included confirmation of securities owned as of July
31, 1996 by correspondence with the Funds' custodian and brokers. An audit also
includes assessing the accounting principles used and significant estimates made
by management, as well as evaluating the overall financial statement
presentation. We believe that our audits provide a reasonable basis for our
opinion.
 
In our opinion, such financial statements present fairly, in all material
respects, the financial position of the Funds at July 31, 1996, the results of
their operations, the changes in their net assets, and the financial highlights
for the year then ended, in conformity with generally accepted accounting
principles.
 
DELOITTE & TOUCHE LLP
 
Dayton, Ohio
September 13, 1996
 
                                      LOGO
                                       24
<PAGE>   574
[LOGO]

 
                      STATEMENTS OF ASSETS AND LIABILITIES
                                 JULY 31, 1996
                              Amounts in Thousands
 
<TABLE>
<CAPTION>
                                                                                           100% U.S.
                                                          DIVERSIFIED   U.S. GOVERNMENT    TREASURY     CALIFORNIA
                                                          OBLIGATIONS     OBLIGATIONS     OBLIGATIONS    TAX-FREE     
                                                             FUND            FUND            FUND          FUND     
                                                          -----------   ---------------   -----------   ----------- 
                                                          <C>           <C>               <C>           <C>           
               ASSETS:
Investments in securities, at amortized cost............   $ 413,900       $ 188,438       $ 274,306     $  148,504 
Repurchase agreements, at cost..........................      21,502          39,183              --             -- 
                                                            --------        --------        --------       -------- 
  Total Investments.....................................     435,402         227,621         274,306        148,504 
Cash....................................................           3              16              --            897 
Interest receivable.....................................       2,256             557             910            432 
Receivable from brokers for investments sold............          --              --              --          2,500 
Prepaid expenses and other assets.......................          14              17              12             10   
                                                            --------        --------        --------       --------  
    Total Assets........................................     437,675         228,211         275,228        152,343 
                                                            --------        --------        --------       -------- 
               LIABILITIES:
Distributions payable...................................       1,690             863           1,088            287      
Payable to brokers for investments purchased............       5,000              --              --             --      
Accrued expenses and other payables:
  Investment advisory fees..............................         143              76              98             31      
  Administration fees...................................          19              10              12              5      
  Shareholder services fees.............................           1               1               1              1      
  Custodian, accounting and transfer agent fees.........          26              26              13             14      
  Other.................................................          69              38              53             26      
                                                            --------        --------        --------       --------   
    Total Liabilities...................................       6,948           1,014           1,265            364   
                                                            --------        --------        --------       --------   
               NET ASSETS:
Capital.................................................     431,097         227,373         273,958        152,028  
Accumulated undistributed net realized gains (losses) on
  investment transactions...............................        (370)           (176)              5            (49)     
                                                            --------        --------        --------       --------   
    Net Assets..........................................   $ 430,727       $ 227,197       $ 273,963     $  151,979   
                                                            ========        ========        ========       ========   
Net Assets
  Investor..............................................   $ 185,952       $  75,714       $ 100,623     $   53,627   
  Fiduciary.............................................     244,775         151,483         173,340         98,352   
                                                            --------        --------        --------       --------   
    Total...............................................   $ 430,727       $ 227,197       $ 273,963     $  151,979   
                                                            ========        ========        ========       ========   
Outstanding units of beneficial interest (shares)
  Investor..............................................     186,031          75,727         100,626         53,639   
  Fiduciary.............................................     245,066         151,646         173,332         98,389   
                                                            --------        --------        --------       --------   
    Total...............................................     431,097         227,373         273,958        152,028   
                                                            ========        ========        ========       ========   
Net asset value -- offering and redemption price per
  share
  Investor..............................................   $    1.00       $    1.00       $    1.00     $     1.00   
  Fiduciary.............................................        1.00            1.00            1.00           1.00   
                                                            ========        ========        ========       ========   
</TABLE>
 
                       See notes to financial statements.
 
                                      LOGO
                                       25

<PAGE>   575
[LOGO]

 
                      STATEMENTS OF ASSETS AND LIABILITIES
                                 JULY 31, 1996
                              Amounts in Thousands
 
<TABLE>
<CAPTION>
                                                                                                   INCOME
                                                                                   BOND            EQUITY
                                                                                   FUND             FUND
                                                                                 --------        ---------
<S>                                                                              <C>             <C>
               ASSETS:
Investments in securities, at value (cost $59,354 and $232,422, 
  respectively)...............................................................   $ 58,799        $ 266,771
Repurchase agreements, at cost................................................      2,237            4,858
                                                                                  -------         --------
    Total Investments.........................................................     61,036          271,629
Interest and dividends receivable.............................................        912              796
Receivable from brokers for investments sold..................................         --            2,930
Prepaid expenses and other assets.............................................          2                6
                                                                                  -------         --------
    Total Assets..............................................................     61,950          275,361
                                                                                  -------         --------
               LIABILITIES:
Distributions payable.........................................................        319              586
Payable for capital shares redeemed...........................................         42               --
Payable to brokers for investments purchased..................................         --            1,726
Accrued expenses and other payables:
  Investment advisory fees....................................................         23              154
  Administration fees.........................................................          2               12
  Custodian, accounting and transfer agent fees...............................         15               21
  Other.......................................................................         18               59
                                                                                  -------         --------
    Total Liabilities.........................................................        419            2,558
                                                                                  -------         --------
               NET ASSETS:
Capital.......................................................................     65,254          223,480
Net unrealized appreciation (depreciation) on investments.....................       (555)          34,349
Undistributed net investment income...........................................         32               --
Accumulated undistributed net realized gains (losses) on investment
  transactions................................................................     (3,200)          14,974
                                                                                  -------         --------
    Net Assets................................................................   $ 61,531          272,803
                                                                                  =======         ========
Net Assets
  Investor....................................................................   $  1,157        $  10,143
  Fiduciary...................................................................     60,374          262,660
                                                                                  -------         --------
    Total.....................................................................   $ 61,531        $ 272,803
                                                                                  =======         ========
Outstanding units of beneficial interest (shares)
  Investor....................................................................        114              710
  Fiduciary...................................................................      5,900           18,413
                                                                                  -------         --------
    Total.....................................................................      6,014           19,123
                                                                                  =======         ========
Net asset value
  Investor -- redemption price per share......................................   $  10.15        $   14.29
  Fiduciary -- offering and redemption price per share........................      10.23            14.27
                                                                                  =======         ========
Maximum Sales Charge (Investor Shares)........................................       3.00%            4.50%
                                                                                  =======         ========
Maximum Offering Price (100%/(100%-Maximum Sales Charge) of net asset value
  adjusted to nearest cent) per share (Investor Shares).......................   $  10.46        $   14.96
                                                                                  =======         ========
</TABLE>
 
                       See notes to financial statements.
 
                                      LOGO
                                       26

<PAGE>   576
[LOGO]

 
                      STATEMENTS OF ASSETS AND LIABILITIES
                                 JULY 31, 1996
                              Amounts in Thousands
 
<TABLE>
<CAPTION>
                                                                                                           
                                                                                    BALANCED    GROWTH     
                                                                                      FUND       FUND      
                                                                                    --------    -------    
<S>                                                                                 <C>         <C>        
               ASSETS:
Investments in securities, at value (cost $32,159 and $39,610,
  respectively)..................................................................   $36,273     $43,527     
Repurchase agreements, at cost...................................................     3,787         900     
                                                                                    ---------   ---------  
    Total Investments............................................................    40,060      44,427    
Interest and dividends receivable................................................       278          55    
Receivable from brokers for investments sold.....................................        --         216    
Prepaid expenses.................................................................         9           5    
                                                                                    ---------   ---------  
    Total Assets.................................................................    40,347      44,703    
                                                                                    ---------   ---------  
               LIABILITIES:
Distributions payable............................................................       118          28    
Payable to brokers for investments purchased.....................................        --         301   
Accrued expenses and other payables:
  Investment advisory fees.......................................................        20          21   
  Administration fees............................................................         2           2   
  Custodian, accounting and transfer agent fees..................................         5           5   
  Other..........................................................................         6           8   
                                                                                    ---------   --------- 
    Total Liabilities............................................................       151         365   
                                                                                    ---------   --------- 
               NET ASSETS:                                                                                
Capital..........................................................................    35,830      38,047   
Net unrealized appreciation on investments.......................................     4,114       3,917   
Undistributed net investment income..............................................         1          --   
Accumulated undistributed net realized gains on investment transactions..........       251       2,374   
                                                                                    ---------   --------- 
    Net Assets...................................................................   $40,196     $44,338   
                                                                                    =========   ========= 
Net Assets                                                                                                
  Investor.......................................................................   $   694     $ 2,843   
  Fiduciary......................................................................    39,502      41,495   
                                                                                    ---------   --------- 
    Total........................................................................   $40,196     $44,338   
                                                                                    =========   ========= 
Outstanding units of beneficial interest (shares)                                                         
  Investor.......................................................................        60         226   
  Fiduciary......................................................................     3,392       3,300   
                                                                                    ---------   --------- 
    Total........................................................................     3,452       3,526   
                                                                                    =========   ========= 
Net asset value                                                                                           
  Investor -- redemption price per share.........................................   $ 11.56     $ 12.60   
  Fiduciary -- offering and redemption price per share...........................     11.64       12.58   
                                                                                    =========   ========= 
Maximum Sales Charge (Investor Shares)...........................................      4.50%       4.50%  
                                                                                    =========   ========= 
Maximum Offering Price (100%/(100%-Maximum Sales Charge) of net asset value                               
  adjusted to nearest cent) per share (Investor Shares)..........................   $ 12.10     $ 13.19   
                                                                                    =========   ========= 
</TABLE>
 
                       See notes to financial statements.
 
                                      LOGO
                                       27

<PAGE>   577
[LOGO]

 
                            STATEMENTS OF OPERATIONS
                        FOR THE YEAR ENDED JULY 31, 1996
                              Amounts in Thousands
 
<TABLE>
<CAPTION>
                                                                    U.S.       100% U.S.
                                                   DIVERSIFIED   GOVERNMENT    TREASURY     CALIFORNIA
                                                   OBLIGATIONS   OBLIGATIONS  OBLIGATIONS    TAX-FREE    
                                                      FUND          FUND         FUND          FUND      
                                                   -----------   ----------   -----------   ----------   
<S>                                                <C>           <C>          <C>           <C>          
INVESTMENT INCOME:                                                                                       
Interest income..................................    $22,468      $ 13,070      $16,193       $5,301     
                                                     -------       -------      -------       ------     
    Total Income.................................     22,468        13,070       16,193        5,301     
                                                     -------       -------      -------       ------     
EXPENSES:                                                                                                
Investment advisory fees.........................      1,591           944        1,203          618     
Administration fees..............................        795           472          602          309     
Distribution fees (Investor shares)..............        396           194          267          122     
Shareholder services fees........................        994           590          752          386     
Custodian and accounting fees....................        264           181          177          121     
Legal and audit fees.............................         63            37           52           29     
Trustees' fees and expenses......................         11             7            9            5     
Transfer agent fees..............................         89            44           50           47     
Registration and filing fees.....................         47            16           28            5     
Printing costs...................................         51            69           42           23     
Other............................................         13             7            9            4     
                                                     -------       -------      -------       ------     
    Total Expenses...............................      4,314         2,561        3,191        1,669     
Expenses voluntarily reduced.....................     (1,327)         (739)        (978)        (824)    
                                                     -------       -------      -------       ------     
    Net Expenses.................................      2,987         1,822        2,213          845     
                                                     -------       -------      -------       ------     
Net Investment Income............................     19,481        11,248       13,980        4,456     
                                                     -------       -------      -------       ------     
REALIZED GAINS ON INVESTMENTS:                                                                           
Net realized gains (losses) on investments.......         16            15          (51)          --     
                                                     -------       -------      -------       ------     
Change in net assets resulting from operations...    $19,497      $ 11,263      $13,929       $4,456     
                                                     =======       =======      =======       ======     
</TABLE>
 
                       See notes to financial statements.
 
                                      LOGO
                                       28

<PAGE>   578
[LOGO]

 
                            STATEMENTS OF OPERATIONS
                        FOR THE YEAR ENDED JULY 31, 1996
                             Amounts in Thousands
 
<TABLE>
<CAPTION>
                                                                                          INCOME  
                                                                         BOND             EQUITY  
                                                                         FUND              FUND   
                                                                        ------          ---------
<S>                                                                     <C>             <C>       
INVESTMENT INCOME:                                                                               
Interest income......................................................   $4,316          $     425
Dividend income......................................................       --              9,943
                                                                        ------            -------
  Total Income.......................................................    4,316             10,368
                                                                        ------            -------
EXPENSES:                                                                                        
Investment advisory fees.............................................      534              1,755
Administration fees..................................................      123                521
Distribution fees (Investor shares)..................................        2                 20
Shareholder services fees............................................      154                651
Custodian and accounting fees........................................       85                174
Legal and audit fees.................................................       10                 44
Trustees' fees and expenses..........................................        2                  7
Transfer agent fees..................................................       54                106
Registration and filing fees.........................................        6                 19
Printing costs.......................................................       22                 47
Other................................................................        3                  8
                                                                        ------            -------
    Total Expenses...................................................      995              3,352
Expenses voluntarily reduced.........................................     (445)              (666)
                                                                        ------            -------
    Total expenses before expense reimbursements.....................      550              2,686
    Expense reimbursements...........................................       --                 --
                                                                        ------            -------
    Net Expenses.....................................................      550              2,686
                                                                        ------            -------
Net Investment Income................................................    3,766              7,682
                                                                        ------            -------
REALIZED/UNREALIZED GAINS (LOSSES) ON INVESTMENTS:                                               
Net realized gains (losses) on investment transactions...............     (369)            19,384
Net change in unrealized appreciation (depreciation) on                                          
  investments........................................................     (465)            13,911
                                                                        ------            -------
Net realized/unrealized gains (losses) on investments................     (834)            33,295
                                                                        ------            -------
Change in net assets resulting from operations.......................   $2,932          $  40,977
                                                                        ======            =======
</TABLE>
 
                       See notes to financial statements.
 
                                      LOGO
                                       29

<PAGE>   579
LOGO 
                            STATEMENTS OF OPERATIONS
                        FOR THE YEAR ENDED JULY 31, 1996
                             Amounts in Thousands
 
<TABLE>
<CAPTION>
                                                                                              
                                                                          BALANCED    GROWTH  
                                                                            FUND       FUND   
                                                                          --------    ------  
<S>                                                                       <C>         <C>     
INVESTMENT INCOME:                                                                            
Interest income........................................................    $  996     $  82   
Dividend income........................................................       549       607   
                                                                           ------     ------  
  Total Income.........................................................     1,545       689   
                                                                           ------     ------  
EXPENSES:                                                                                     
Investment advisory fees...............................................       348       362   
Administration fees....................................................        70        72   
Distribution fees (Investor shares)....................................         2         5   
Shareholder services fees..............................................        87        90   
Custodian and accounting fees..........................................        64        78   
Legal and audit fees...................................................         6         6   
Trustees' fees and expenses............................................         1         1   
Transfer agent fees....................................................        33        42   
Registration and filing fees...........................................         3         4   
Printing costs.........................................................         6         6   
Other..................................................................         1         2   
                                                                           ------     ------  
    Total Expenses.....................................................       621       668   
Expenses voluntarily reduced...........................................      (293)     (333 ) 
                                                                           ------     ------  
    Total expenses before expense reimbursements.......................       328       335   
    Expense reimbursements.............................................        --        --   
                                                                           ------     ------  
    Net Expenses.......................................................       328       335   
                                                                           ------     ------  
Net Investment Income..................................................     1,217       354   
                                                                           ------     ------  
REALIZED/UNREALIZED GAINS ON INVESTMENTS:                                                     
Net realized gains on investment transactions..........................       446     3,272   
Net change in unrealized appreciation on investments...................     1,716       155   
                                                                           ------     ------  
Net realized/unrealized gains on investments...........................     2,162     3,427   
                                                                           ------     ------  
Change in net assets resulting from operations.........................    $3,379     $3,781  
                                                                           ======     ======  
</TABLE>
 
                       See notes to financial statements.
 
                                      LOGO
                                       30
<PAGE>   580
LOGO 
                      STATEMENTS OF CHANGES IN NET ASSETS
                              Amounts in Thousands
 
<TABLE>
<CAPTION>
                                                         DIVERSIFIED                 U.S. GOVERNMENT
                                                       OBLIGATIONS FUND              OBLIGATIONS FUND
                                                  --------------------------    --------------------------
                                                  YEAR ENDED     YEAR ENDED     YEAR ENDED     YEAR ENDED
                                                   JULY 31,       JULY 31,       JULY 31,       JULY 31,
                                                     1996           1995           1996           1995
                                                  -----------    -----------    -----------    -----------
<S>                                               <C>            <C>            <C>            <C>
FROM INVESTMENT ACTIVITIES:
OPERATIONS:
  Net investment income.......................... $    19,481    $    17,476    $    11,248    $     8,697
  Net realized gains (losses) on investment
    transactions.................................          16            (29)            15             34
                                                  -----------    -----------    -----------    -----------
Change in net assets resulting from operations...      19,497         17,447         11,263          8,731
                                                  -----------    -----------    -----------    -----------
DISTRIBUTIONS TO INVESTOR SHAREHOLDERS:
  From net investment income.....................      (7,738)        (5,516)        (3,707)        (2,084)
DISTRIBUTIONS TO FIDUCIARY SHAREHOLDERS:
  From net investment income.....................     (11,743)       (11,960)        (7,541)        (6,613)
                                                  -----------    -----------    -----------    -----------
Change in net assets from shareholder
  distributions..................................     (19,481)       (17,476)       (11,248)        (8,697)
                                                  -----------    -----------    -----------    -----------
CAPITAL TRANSACTIONS:
  Proceeds from shares issued....................   1,943,043      1,562,243      1,933,728      1,760,626
  Dividends reinvested...........................       7,326          4,915          3,487          1,950
  Cost of shares redeemed........................  (1,918,325)    (1,473,121)    (1,918,254)    (1,740,538)
                                                  -----------    -----------    -----------    -----------
Change in net assets from share transactions.....      32,044         94,037         18,961         22,038
                                                  -----------    -----------    -----------    -----------
Change in net assets.............................      32,060         94,008         18,976         22,072
NET ASSETS:
  Beginning of period............................     398,667        304,659        208,221        186,149
                                                  -----------    -----------    -----------    -----------
  End of period.................................. $   430,727    $   398,667    $   227,197    $   208,221
                                                  ===========    ===========    ===========    ===========
</TABLE>
 
                       See notes to financial statements.
 
                                      LOGO
                                       31
<PAGE>   581
LOGO 
                      STATEMENTS OF CHANGES IN NET ASSETS
                              Amounts in Thousands
 
<TABLE>
<CAPTION>
                                     100% U.S. TREASURY           CALIFORNIA       
                                      OBLIGATIONS FUND          TAX-FREE FUND      
                                   -----------------------  ---------------------- 
                                   YEAR ENDED   YEAR ENDED  YEAR ENDED  YEAR ENDED 
                                    JULY 31,     JULY 31,    JULY 31,    JULY 31,  
                                      1996         1995        1996        1995    
                                   -----------  ----------  ----------  ---------- 
<S>                                <C>          <C>         <C>         <C>        
FROM INVESTMENT ACTIVITIES:                                                        
OPERATIONS:                                                                        
  Net investment income........... $    13,980  $  10,640   $   4,456   $   4,619  
  Net realized gains (losses) on                                                   
    investment transactions.......         (51)        57          --         (23) 
                                    ----------  ---------   ---------   ---------  
Change in net assets resulting                                                     
  from operations.................      13,929     10,697       4,456       4,596  
                                    ----------  ---------   ---------   ---------  
DISTRIBUTIONS TO INVESTOR                                                          
  SHAREHOLDERS:                                                                    
  From net investment income......      (4,948)    (2,706)     (1,404)     (1,089) 
DISTRIBUTIONS TO FIDUCIARY                                                         
  SHAREHOLDERS:                                                                    
  From net investment income......      (9,032)    (7,934)     (3,052)     (3,530) 
                                    ----------  ---------   ---------   ---------  
Change in net assets from                                                          
  shareholder distributions.......     (13,980)   (10,640)     (4,456)     (4,619) 
                                    ----------  ---------   ---------   ---------  
CAPITAL TRANSACTIONS:                                                              
  Proceeds from shares issued.....   1,004,680    736,668     343,893     354,814  
  Dividends reinvested............       4,571      2,106       1,425       1,035  
  Cost of shares redeemed.........  (1,014,501)  (659,445)   (339,625)   (356,054) 
                                    ----------  ---------   ---------   ---------  
Change in net assets from share                                                    
  transactions....................      (5,250)    79,329       5,693        (205) 
                                    ----------  ---------   ---------   ---------  
Change in net assets..............      (5,301)    79,386       5,693        (228) 
NET ASSETS:                                                                        
  Beginning of period.............     279,264    199,878     146,286     146,514  
                                    ----------  ---------   ---------   ---------  
  End of period................... $   273,963  $ 279,264   $ 151,979   $ 146,286  
                                    ==========  =========   =========   =========  
</TABLE>
 
                       See notes to financial statements.
 
                                      LOGO
                                       32
<PAGE>   582
LOGO 
                      STATEMENTS OF CHANGES IN NET ASSETS
                              Amounts in Thousands
 
<TABLE>
<CAPTION>
                                          BOND FUND           INCOME EQUITY FUND
                                    ----------------------  ----------------------
                                    YEAR ENDED  YEAR ENDED  YEAR ENDED  YEAR ENDED
                                     JULY 31,    JULY 31,    JULY 31,    JULY 31,
                                       1996        1995        1996        1995
                                    ----------  ----------  ----------  ----------
<S>                                 <C>         <C>         <C>         <C>
FROM INVESTMENT ACTIVITIES:                                
OPERATIONS:                                                
  Net investment income............  $  3,766    $  3,824    $  7,682    $  7,595
  Net realized gains (losses) on                           
    investment transactions........      (369)     (1,512)     19,384       8,944
  Net change in unrealized                                 
    appreciation (depreciation) on                         
    investments....................      (465)      3,052      13,911      17,456
                                     --------    --------    --------    --------
Change in net assets resulting from                        
  operations.......................     2,932       5,364      40,977      33,995
                                     --------    --------    --------    --------
DISTRIBUTIONS TO INVESTOR                                  
  SHAREHOLDERS:                                            
  From net investment income.......       (63)        (18)       (239)        (43)
  From net realized gains on                               
    investments....................        (1)         --        (277)        (16)
DISTRIBUTIONS TO FIDUCIARY                                 
  SHAREHOLDERS:                                            
  From net investment income.......    (3,703)     (3,806)     (7,443)     (7,552)
  From net realized gains on                               
    investments....................       (32)         --     (11,279)     (7,309)
                                     --------    --------    --------    --------
Change in net assets from                                  
  shareholder distributions........    (3,799)     (3,824)    (19,238)    (14,920)
                                     --------    --------    --------    --------
CAPITAL TRANSACTIONS:                                      
  Proceeds from shares issued......    15,630      11,393      63,282      36,043
  Dividends reinvested.............     3,043       3,125      17,495      13,535
  Cost of shares redeemed..........   (16,591)    (19,934)    (54,919)    (56,799)
                                     --------    --------    --------    --------
Change in net assets from share                            
  transactions.....................     2,082      (5,416)     25,858      (7,221)
                                     --------    --------    --------    --------
Change in net assets...............     1,215      (3,876)     47,597      11,854
NET ASSETS:                                                
  Beginning of period..............    60,316      64,192     225,206     213,352
                                     --------    --------    --------    --------
  End of period....................  $ 61,531    $ 60,316    $272,803    $225,206
                                     ========    ========    ========    ========
</TABLE>
 
                       See notes to financial statements.
 
                                      LOGO
                                       33
<PAGE>   583
LOGO 
                      STATEMENTS OF CHANGES IN NET ASSETS
                              Amounts in Thousands
 
<TABLE>
<CAPTION>
                                        BALANCED FUND            GROWTH FUND       
                                    ----------------------  ---------------------- 
                                    YEAR ENDED  YEAR ENDED  YEAR ENDED  YEAR ENDED 
                                     JULY 31,    JULY 31,    JULY 31,    JULY 31,  
                                       1996        1995        1996        1995    
                                    ----------  ----------  ----------  ---------- 
<S>                                 <C>         <C>         <C>         <C>        
FROM INVESTMENT ACTIVITIES:                                                        
OPERATIONS:                                                                        
  Net investment income............  $  1,217    $    992    $    354    $    272  
  Net realized gains on investment                                                 
    transactions...................       446          21       3,272         915  
  Net change in unrealized                                                         
    appreciation on investments....     1,716       2,804         155       3,752  
                                      -------     -------     -------     -------  
Change in net assets resulting from                                                
  operations.......................     3,379       3,817       3,781       4,939  
                                      -------     -------     -------     -------  
DISTRIBUTIONS TO INVESTOR                                                          
  SHAREHOLDERS:                                                                    
  From net investment income.......       (23)         (3)        (21)         (5) 
  From net realized gains on                                                       
    investments....................        --          --         (94)         (3) 
DISTRIBUTIONS TO FIDUCIARY                                                         
  SHAREHOLDERS:                                                                    
  From net investment income.......    (1,194)       (989)       (333)       (267) 
  From net realized gains on                                                       
    investments....................        (2)         --      (1,566)       (240) 
                                      -------     -------     -------     -------  
Change in net assets from                                                          
  shareholder distributions........    (1,219)       (992)     (2,014)       (515) 
                                      -------     -------     -------     -------  
CAPITAL TRANSACTIONS:                                                              
  Proceeds from shares issued......    15,840      10,356      19,239       9,727  
  Dividends reinvested.............     1,172         986       1,965         503  
  Cost of shares redeemed..........    (9,404)     (9,590)     (4,947)     (3,594) 
                                      -------     -------     -------     -------  
Change in net assets from share                                                    
  transactions.....................     7,608       1,752      16,257       6,636  
                                      -------     -------     -------     -------  
Change in net assets...............     9,768       4,577      18,024      11,060  
NET ASSETS:                                                                        
  Beginning of period..............    30,428      25,851      26,314      15,254  
                                      -------     -------     -------     -------  
  End of period....................  $ 40,196    $ 30,428    $ 44,338    $ 26,314  
                                      =======     =======     =======     =======  
</TABLE>
 
                       See notes to financial statements.
 
                                      LOGO
                                       34
<PAGE>   584
LOGO                     DIVERSIFIED OBLIGATIONS FUND
 
                       SCHEDULE OF PORTFOLIO INVESTMENTS
                                 JULY 31, 1996
                              Amounts in Thousands
<TABLE>
<CAPTION>
    PRINCIPAL             SECURITY             AMORTIZED
     AMOUNT              DESCRIPTION             COST
    ---------   -----------------------------  ---------
<S> <C>         <C>                            <C>
CERTIFICATES OF DEPOSIT (23.4%):
Euro Certificates of Deposit (3.7%):
     $ 5,000    Abbey National Treasury
                  Services, 5.72%, 9/11/96...  $  5,000
       6,000    Abbey National Treasury
                  Services, 5.22%, 3/4/97         5,983
       5,000    Bayerische Vereinsbank,
                  5.49%, 11/13/96                 5,001
                                               --------
                                                 15,984
                                               --------
Yankee Certificates of Deposit (19.7%):
      10,000    ABN-AMRO Bank N.V., 5.53%,
                  3/18/97....................     9,996
       5,000    Commerzbank, 5.66%, 4/24/97..     4,997
      10,000    Dresdner Bank, 5.05%,
                  2/26/97....................     9,999
      10,000    Deutsche Bank, 5.57%,
                  3/31/97....................    10,001
       5,000    Rabobank Nederland N.V.,
                  5.82% 8/14/96..............     5,000
      10,000    Sanwa Bank Ltd., 5.62%,
                  10/16/96...................    10,002
      10,000    Society Generale, 5.65%,
                  4/1/97.....................     9,993
       5,000    Society Generale, 5.80%,
                  4/15/97....................     5,002
      10,000    Sumitomo Bank Ltd., 5.48%,
                  8/26/96....................    10,000
       5,000    Sumitomo Bank Ltd., 5.46%,
                  9/3/96.....................     5,000
       5,000    Sumitomo Bank Ltd., 6.01%,
                  10/30/96...................     5,000
                                               --------
                                                 84,990
                                               --------
   Total Certificates of Deposit                100,974
                                               --------
 
<CAPTION>
    PRINCIPAL             SECURITY             AMORTIZED
     AMOUNT              DESCRIPTION             COST
                                               --------
<S> <C>         <C>                            <C>
COMMERCIAL PAPER/MASTER DEMAND NOTES (67.5%):
Automotive (6.9%):
     $ 5,000    Daimler-Benz North America
                  Corp., 5.35%, 1/6/97.......  $  4,876
       5,000    Daimler-Benz North America
                  Corp., 5.53%, 1/13/97......     4,873
       5,000    Ford Motor Credit Corp.,
                  5.27%, 8/13/96.............     4,991
      10,000    Ford Motor Credit Corp.,
                  5.34%, 8/15/96.............     9,979
       5,000    Ford Motor Credit Corp.,
                  5.42%, 9/6/96..............     4,973
                                               --------
                                                 29,692
                                               --------
Banking (9.2%):
       5,000    ANZ (De) Inc., 5.38%,
                  9/10/96....................     4,970
       5,000    ANZ (De) Inc., 5.40%,
                  9/9/96.....................     4,971
       5,000    ANZ (De) Inc., 5.47%,
                  10/9/96....................     4,948
       5,000    Abbey National North America
                  Inc., 5.54%, 9/25/96.......     4,958
       5,000    Abbey National North America
                  Inc., 5.40%, 12/4/96.......     4,906
       5,000    Commerzbank U.S. Finance
                  Inc., 5.35%, 8/8/96........     4,995
       5,000    Den Danske Corporation Inc.,
                  5.38%, 8/6/96..............     4,996
       5,000    Den Danske Corporation Inc.,
                  5.42%, 10/1/96.............     4,954
                                               --------
                                                 39,698
                                               --------
</TABLE>
                                   Continued
 
                                      LOGO
                                       35
<PAGE>   585
LOGO
                         DIVERSIFIED OBLIGATIONS FUND

                  SCHEDULE OF PORTFOLIO INVESTMENTS, CONTINUED
                                 JULY 31, 1996
                              Amounts in Thousands
<TABLE>
<CAPTION>
    PRINCIPAL             SECURITY             AMORTIZED
     AMOUNT              DESCRIPTION             COST
    ---------   -----------------------------  ---------
<S> <C>         <C>                            <C>
COMMERCIAL PAPER/MASTER DEMAND NOTES,
  CONTINUED:
Business Credit Institutions (21.9%):
     $10,000    Alpha Finance Corp., 5.48%,
                  10/11/96...................  $  9,892
      10,000    Assets Securitization
                  Cooperative Corp., 5.37%,
                  8/5/96.....................     9,994
       5,000    Assets Securitization
                  Cooperative Corp., 5.40%,
                  9/17/96....................     4,965
       5,000    Beta Finance Inc., 5.53%,
                  1/3/97.....................     4,881
      10,000    Ciesco, L.P., 5.26%,
                  8/16/96....................     9,978
       5,000    Ciesco, L.P., 5.32%,
                  9/9/96.....................     4,971
       5,200    Corporate Receivables Corp.,
                  5.35%, 8/22/96.............     5,184
      10,000    Corporate Receivables Corp.,
                  5.40%, 9/12/96.............     9,937
       5,000    Corporate Receivables Corp.,
                  5.42%, 10/8/96.............     4,949
       5,000    CXC, Inc., 5.38%, 8/1/96.....     5,000
      10,000    CXC, Inc., 5.40%, 9/3/96.....     9,950
       5,000    Falcon Asset Securitization
                  Corp., 5.40%, 8/19/96......     4,986
       5,000    Falcon Asset Securitization
                  Corp., 5.55%, 1/21/97......     4,867
       5,000    Jet Funding Corp., 5.50%,
                  9/30/96....................     4,954
                                               ---------
                                                 94,508
                                               ---------
Electronic & Electrical--General (4.6%):
      10,000    Panasonic Finance Inc.,
                  5.38%, 9/9/96..............     9,942
      10,000    Panasonic Finance Inc.,
                  5.34%, 9/17/96.............     9,930
                                               ---------
                                                 19,872
                                               ---------


    PRINCIPAL             SECURITY             AMORTIZED
     AMOUNT              DESCRIPTION             COST
    ---------   -----------------------------  ---------
COMMERCIAL PAPER/MASTER DEMAND NOTES,
  CONTINUED:
Insurance (1.2%):
     $ 5,000    TransAmerica Corp., 5.36%,
                  8/9/96.....................  $  4,994
                                               ---------
Mining (1.1%):
       5,000    RTZ America Inc., 5.30%,
                  8/22/96....................     4,985
                                               ---------
Multiple Industry (6.9%):
      10,000    BTR Dunlop Finance Inc.,
                  5.37%, 8/7/96..............     9,991
       5,000    BTR Dunlop Finance Inc.,
                  5.27%, 8/26/96.............     4,982
       5,000    BTR Dunlop Finance Inc.,
                  5.40%, 9/16/96.............     4,965
      10,000    General Electric Capital
                  Corp., 5.29%, 9/5/96.......     9,949
                                               ---------
                                                 29,887
                                               ---------
Retail (3.5%):
       5,000    J.C. Penney Funding Corp.,
                  5.38%, 8/7/96..............     4,996
      10,000    J.C. Penney Funding Corp.,
                  5.34%, 8/29/96.............     9,958
                                               ---------
                                                 14,954
                                               ---------
Technology (1.7%):
       7,200    Hewlett Packard Co., 5.29%,
                  8/27/96....................     7,172
                                               ---------
Tobacco & Tobacco Products (1.2%):
       5,000    B.A.T. Capital Corp., 5.33%,
                  8/16/96....................     4,989
                                               ---------

</TABLE>

                                   Continued

                                      LOGO
                                       36
<PAGE>   586
LOGO
                         DIVERSIFIED OBLIGATIONS FUND
 
                  SCHEDULE OF PORTFOLIO INVESTMENTS, CONTINUED
                                 JULY 31, 1996
                              Amounts in Thousands
<TABLE>
<CAPTION>
    PRINCIPAL             SECURITY             AMORTIZED
     AMOUNT              DESCRIPTION             COST
    ---------   -----------------------------  ---------
<S> <C>         <C>                            <C>
COMMERCIAL PAPER/MASTER DEMAND NOTES,
  CONTINUED:
Trading Company (3.5%):
     $10,000    Cargill Financial Services
                  Corp. 5.33%, 8/16/96.......  $  9,978
       5,000    Cargill Inc., 5.35%,
                  8/2/96.....................     4,999
                                               ---------
                                                 14,977
                                               ---------
Telecommunications (3.5%):
      10,000    AT&T Corp., 5.30%, 8/8/96....     9,990
       5,000    AT&T Corp., 5.42%, 9/18/96...     4,964
                                               ---------
                                                 14,954
                                               ---------
Utility (2.3%):
      10,000    National Rural Utilities
                  Co-op. Finance Corp.,
                  5.37%, 8/9/96..............     9,988
                                               ---------
   Total Commercial Paper / Master Demand
    Notes                                       290,670
                                               ---------
MEDIUM TERM NOTES/CORPORATE BONDS (2.9%):
Banking (2.3%):
      10,000    Sanwa Business Credit Corp.,
                  5.56%, 12/4/96 *...........    10,000
                                               ---------
    PRINCIPAL             SECURITY             AMORTIZED
     AMOUNT              DESCRIPTION             COST
    ---------   -----------------------------  ---------
Manufacturing--Consumer Goods (0.6%):
     $ 2,500    Gillette Co., 4.75%,
                  8/15/96....................  $  2,499
                                               ---------
   Total Medium Term Notes/Corporate Bonds
                                                 12,499
                                               ---------
U.S. TREASURY BILLS (2.3%):
      10,000    4.62%, 2/6/97................     9,757
                                               ---------
   Total U.S. Treasury Bills                      9,757
                                               ---------
   Total Investments, at value                  413,900
                                               ---------
REPURCHASE AGREEMENTS (5.0%);
      21,502    C.S. First Boston Corp.,
                  5.62%, 8/1/96
                  (Collateralized by 18,006
                  U.S. Treasury Bonds, 8.75%,
                  8/15/20, market value
                  $21,970)...................    21,502
                                               ---------
   Total Repurchase Agreements                   21,502
                                               ---------
   Total                                       $435,402 (a)
                                               ==========
</TABLE>
 
- ------------
Percentages indicated are based on net assets of $430,727.
 
(a) Cost for federal income tax and financial reporting purposes are the same.
 
* Variable rate securities having liquidity sources through bank letters of
  credit or other credit and/or liquidity arrangements. The interest rate, which
  will change periodically, is based upon bank prime rates or an index of market
  interest rates. The rate reflected on the Schedule of Portfolio Investments is
  the rate in effect on July 31, 1996.
 
                       See notes to financial statements.
 
                                      LOGO
                                       37
<PAGE>   587
LOGO
                       U.S. GOVERNMENT OBLIGATIONS FUND
 
                       SCHEDULE OF PORTFOLIO INVESTMENTS
                                 JULY 31, 1996
                              Amounts in Thousands
<TABLE>
<CAPTION>
  PRINCIPAL               SECURITY             AMORTIZED
   AMOUNT                DESCRIPTION             COST
- -------------   -----------------------------  ---------
<S> <C>         <C>                            <C>
U.S. TREASURY BILLS (4.3%):
     $10,000    4.62%, 2/6/97................  $  9,757
                                               --------
   Total U.S. Treasury Bills                      9,757
                                               --------
U.S. GOVERNMENT AGENCIES (78.6%):
Federal Home Loan Bank:
       7,500    Discount note, 5.32%,
                  8/14/96....................     7,486
       5,000    Discount note, 5.22%,
                  8/20/96....................     4,986
       5,000    Discount note, 5.31%,
                  9/25/96....................     4,959
       5,000    Discount note, 5.19%,
                  10/15/96...................     4,946
       5,000    Discount note, 5.37%,
                  11/1/96....................     4,931
       5,000    Discount note, 5.25%,
                  11/4/96....................     4,931
       5,000    Discount note, 5.19%,
                  1/14/97....................     4,881
       5,000    Discount note, 5.21%,
                  1/21/97....................     4,875
       4,610    5.26%, 1/29/97...............     4,610
Federal Home Loan Mortgage Corp.:
       5,000    Discount note, 5.34%,
                  9/16/96....................     4,966
Federal National Mortgage Assoc.:
       5,000    Discount note, 5.30%,
                  8/1/96.....................     5,000
       5,000    Discount note, 5.25%,
                  8/15/96....................     4,990
       5,000    Discount note, 5.24%,
                  8/21/96....................     4,985
       5,000    Discount note, 5.33%,
                  9/9/96.....................     4,971
       5,000    Discount note, 5.35%,
                  9/10/96....................     4,970
       5,000    Discount note, 5.34%,
                  9/11/96....................     4,970
      10,000    Discount note, 5.27%,
                  9/17/96....................     9,931
       5,000    Discount note, 5.26%,
                  9/23/96....................     4,961
       5,540    Discount note, 5.30%,
                  9/24/96....................     5,496
 
<CAPTION>
  PRINCIPAL               SECURITY             AMORTIZED
   AMOUNT                DESCRIPTION             COST
- -------------   -----------------------------  ---------
<S> <C>         <C>                            <C>
U.S. GOVERNMENT AGENCIES, CONTINUED:
Federal National Mortgage Assoc., continued:
     $ 5,000    Discount note, 5.38%,
                  10/15/96...................  $  4,944
       5,000    Discount note, 5.29%,
                  12/6/96....................     4,907
       6,940    7.60%, 1/10/97...............     6,999
      20,000    5.30%, 5/5/97 *..............    19,987
Overseas Private Investment Corp.:
      20,000    5.40%, 1/15/09 *.............    20,000
Student Loan Marketing Assoc.:
      10,000    5.57%, 9/23/96 *.............     9,999
      10,000    5.49%, 7/18/97 *.............    10,000
                                               --------
   Total U.S. Government Agencies               178,681
                                               --------
   Total Investments, at value                  188,438
                                               --------
REPURCHASE AGREEMENTS (17.2%):
      39,183    C. S. First Boston Corp.,
                  5.62%, 8/1/96
                (Collateralized by 32,811
                U.S. Treasury Bonds,
                8.75%, 8/15/20, market
                value--$40,034)..............    39,183
                                               --------
   Total Repurchase Agreements                   39,183
                                               --------
   Total                                       $227,621 (a)
                                               ========
</TABLE>
 
- ------------
 
Percentages indicated are based on net assets of $227,197.
 
(a) Cost for federal income tax and financial reporting purposes are the same.
 
* Variable rate securities having liquidity sources through bank letters of
  credit or other credit and/or liquidity agreements. The interest rate, which
  will change periodically, is based upon bank prime rates or an index of market
  interest rates. The rate reflected on the Schedule of Portfolio Investments is
  the rate in effect at July 31, 1996.
 
                       See notes to financial statements.
 
                                      LOGO
                                       38
<PAGE>   588
LOGO                 100% U.S. TREASURY OBLIGATIONS FUND
 
                       SCHEDULE OF PORTFOLIO INVESTMENTS
                                 JULY 31, 1996
                              Amounts in Thousands
<TABLE>
<CAPTION>
    PRINCIPAL             SECURITY             AMORTIZED
     AMOUNT              DESCRIPTION             COST
    ---------   -----------------------------  ---------
<S> <C>         <C>                            <C>
U.S. TREASURY BILLS (85.5%):
     $ 1,355    4.99%, 8/1/96*...............  $  1,355
      15,000    5.00%, 8/8/96*...............    14,985
       2,303    5.01%, 8/8/96*...............     2,301
       2,226    5.02%, 8/8/96*...............     2,224
       5,000    5.03%, 8/8/96*...............     4,995
       5,000    5.04%, 8/8/96*...............     4,995
      10,192    4.96%, 8/15/96*..............    10,172
       7,425    5.01%, 8/15/96*..............     7,411
       5,000    5.03%, 8/15/96*..............     4,990
       2,777    5.04%, 8/15/96*..............     2,772
       1,067    4.95%, 8/22/96*..............     1,064
      10,000    4.98%, 8/22/96*..............     9,971
      10,000    5.02%, 8/22/96*..............     9,971
       2,000    5.48%, 8/22/96*..............     1,993
       2,500    5.50%, 8/22/96*..............     2,492
       4,744    4.98%, 8/29/96*..............     4,725
      10,000    5.05%, 8/29/96*..............     9,961
       2,023    5.04%, 9/5/96*...............     2,013
         312    5.06%, 9/5/96*...............       310
       4,572    5.07%, 9/5/96*...............     4,550
         865    5.08%, 9/5/96*...............       861
      15,000    5.10%, 9/5/96*...............    14,925
       3,640    5.04%, 9/12/96*..............     3,618
         892    5.07%, 9/12/96*..............       887
       5,000    5.10%, 9/12/96*..............     4,970
       7,703    5.11%, 9/12/96*..............     7,657
       5,225    5.12%, 9/12/96*..............     5,193
         385    5.07%, 9/19/96*..............       382
       6,651    5.09%, 9/19/96*..............     6,605
       5,410    5.11%, 9/19/96*..............     5,373
       4,828    5.13%, 9/19/96*..............  $  4,794
 
<CAPTION>
    PRINCIPAL             SECURITY             AMORTIZED
     AMOUNT              DESCRIPTION             COST
    ---------   -----------------------------  ---------
<S> <C>         <C>                            <C>
U.S. TREASURY BILLS, CONTINUED:
     $ 5,936    5.14%, 9/19/96*..............     5,895
       5,000    5.04%, 10/3/96*..............     4,956
       1,227    5.09%, 10/3/96*..............     1,216
       3,162    5.11%, 10/3/96*..............     3,134
       3,077    5.11%, 10/10/96*.............     3,046
       5,000    5.15%, 10/10/96*.............     4,950
       5,000    5.05%, 10/17/96*.............     4,946
       2,034    5.09%, 10/17/96*.............     2,012
       7,639    5.11%, 10/17/96*.............     7,556
       4,000    5.07%, 10/24/96*.............     3,953
       5,000    5.12%, 10/24/96*.............     4,940
       5,000    5.34%, 1/9/97*...............     4,881
       5,000    5.24%, 1/23/97*..............     4,873
       5,000    4.91%, 2/6/97*...............     4,871
       5,000    5.11%, 2/6/97*...............     4,866
       5,000    5.16%, 4/3/97*...............     4,825
       5,000    5.32%, 4/3/97*...............     4,819
                                               --------
 Total U.S. Treasury Bills                      234,254
                                               --------
U.S. TREASURY NOTES (12.8%):
      10,000    7.25%, 8/31/96...............    10,013
      10,000    7.25%, 8/31/96...............    10,011
      10,000    6.63%, 3/31/97...............    10,072
       5,000    6.50%, 4/30/97...............     5,031
                                               --------
 Total U.S. Treasury Notes                       35,127
                                               --------
U.S. TREASURY STRIPS (1.8%):
       5,000    5.12%, 11/15/96*.............     4,925
                                               --------
 Total U.S. Treasury Strips                       4,925
                                               --------
 Total                                         $274,306 (a)
                                               ========
</TABLE>
- ------------
Percentages indicated are based on net assets of $273,963.
 
(a) Cost for federal income tax and financial reporting purposes are the same.
 
* Discount yield at date of purchase.
 
                       See notes to financial statements.
                                      LOGO
                                       39
<PAGE>   589
LOGO
                           CALIFORNIA TAX-FREE FUND
 
                       SCHEDULE OF PORTFOLIO INVESTMENTS
                                 JULY 31, 1996
                              Amounts in Thousands
 
<TABLE>
<CAPTION>
SHARES OR
PRINCIPAL                                        SECURITY                                        AMORTIZED
 AMOUNT                                         DESCRIPTION                                        COST
- ---------   -----------------------------------------------------------------------------------  ---------
<C>         <S>                                                                                  <C>
MUNICIPAL SECURITIES $(90.1%):
California (90.1%)
 $ 5,025    Contra Costa County, Park Regency, Series 1992, 3.70%, 8/1/32, AMT*................  $  5,025
   2,500    Department of Water Resources, 3.35%, 11/29/96.....................................     2,500
   3,300    Health Facilities Authority, Enloe Memorial Hospital, 3.00%, 1/1/16*...............     3,300
   6,800    Health Facilities Authority, Memorial Health Services, 3.25%, 10/1/24*.............     6,800
   6,600    Health Finance Authority, Catholic Healthcare West, 3.25%, 7/1/05*.................     6,600
     900    Health Finance Authority, Catholic Healthcare West, 3.25%, 7/1/09*.................       900
   6,900    Health Finance Authority, Kaiser Permanente Series, 3.25%, 5/1/28*.................     6,900
   1,700    Health Finance Authority, Pooled Program, Series 1990 A, 3.40%, 9/1/20*............     1,700
   2,400    Health Finance Authority, Pooled Program, Series B, 3.40%, 10/1/10*................     2,400
   1,200    Health Finance Authority, Santa Barbara Cottage, 3.25%, 9/1/15*....................     1,200
   1,000    Health Finance Authority, Santa Barbara Cottage, Series B, 3.25%, 9/1/05*..........     1,000
   1,200    Kern County Public Facilities, Project Series B, 3.35%, 8/1/06*....................     1,200
   1,700    Lancaster Multi-Family Housing, Westwood Park Apartments, 3.40%, 12/1/07*..........     1,700
   6,800    Los Angeles County Metro Transportation Authority, Union Station Gateway Project,       6,800
              3.25%, 7/2/25*...................................................................
   4,700    Los Angeles County Transportation, 3.40%, 7/1/12*..................................     4,700
     700    Los Angeles Multi-Family Housing, Crescent Gardens, 3.40%, 7/1/14*.................       700
   3,700    Los Angeles Multi-Family Housing, Series K, 3.25%, 7/1/10*.........................     3,700
   7,500    Los Angeles Multi-Family Housing, Southpark Apartment Project, 3.55%, 12/1/05*.....     7,500
   3,700    Metropolitan Water District of Southern California, 3.25%, 6/1/23..................     3,700
   2,800    Oxnard Housing Authority, Seawood Apartments Project, 3.65%, 12/1/20, AMT*.........     2,800
   7,200    Pollution Control Finance Authority, Burney Forest 1988, 3.70%, 9/1/20, AMT*.......     7,200
   1,900    Pollution Control Finance Authority, Delano Project 1989, 3.65%, 8/1/19, AMT*......     1,900
   2,310    Pollution Control Finance Authority, Delano Project 1990, 3.65%, 8/1/19, AMT*......     2,310
   3,000    Pollution Control Finance Authority, Delano Project 1991, 3.65%, 8/1/19, AMT*......     3,000
   2,600    Pollution Control Finance Authority, Honey Lake Power Project, Series 88, 3.65%,        
              9/1/18, AMT......................................................................     2,600
   1,700    Pollution Control Finance Authority, North County Recycling Center, Series B,                
              3.40%, 7/1/17*...................................................................     1,700
     500    Pollution Control Finance Authority, Pacific Gas & Electric, Series 88C, 3.35%,              
              8/15/96..........................................................................       500
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       40
<PAGE>   590
LOGO
                           CALIFORNIA TAX-FREE FUND
 
                  SCHEDULE OF PORTFOLIO INVESTMENTS, CONTINUED
                                 JULY 31, 1996
                              Amounts in Thousands
 
<TABLE>
<CAPTION>
SHARES OR
PRINCIPAL                                        SECURITY                                        AMORTIZED
 AMOUNT                                         DESCRIPTION                                        COST
                                                                                                 --------
<C>         <S>                                                                                  <C>
                                                               MUNICIPAL SECURITIES, CONTINUED:
                                                                         California, continued:
 $ 3,200    Pollution Control Finance Authority, Southern California Edison, Series 85C, 3.55%,  $  3,200
              9/24/96..........................................................................
   1,000    Pollution Control Finance Authority, Southern California Edison, Series 85D, 3.35%,     1,000
              9/10/96..........................................................................
   2,600    Pollution Control Finance Authority, Southern California Edison, Series 85C, 3.55%,     2,600
              9/6/96...........................................................................
     500    Pollution Control Finance Authority, Southern California Edison, Series 85C, 3.60%,       500
              1/15/97..........................................................................
   1,550    Pollution Control Finance Authority, Southern California Edison, Series 85C, 3.15%,     1,550
              8/1/96...........................................................................
     500    Pollution Control Finance Authority, Southern California Edison, Series 85C, 3.20%,       500
              9/10/96..........................................................................
   4,000    Pollution Control Finance Authority, Southern California Edison, Series 85C, 3.35%,     4,000
              10/1/96..........................................................................
   1,200    Pollution Control Finance Authority, Southern California Edison, Series 85C, 3.45%,     1,200
              11/14/96.........................................................................
   1,100    Pollution Control Finance Authority, Southern California Edison, Series 86A, 3.40%,     1,100
              2/28/08*.........................................................................
   1,400    Pollution Control Finance Authority, Southern California Edison, Series 86B, 3.40%,     1,400
              2/28/08*.........................................................................
   2,000    Pollution Control Finance Authority, Southern California Edison, Series 86C, 3.40%,     2,000
              2/28/08..........................................................................
   2,200    Pollution Control Finance Authority, Southern California Edison, Series 86D, 3.40%,     2,200
              2/28/08..........................................................................
   2,200    Sacramento County Multi-Family Housing Authority, River Oaks Apartments, 3.55%,         2,200
              9/15/07*.........................................................................
   5,000    San Bernardino County, TRANs, 4.50%, 6/30/97.......................................     5,027
     500    San Jose, Multi-Family Housing, Somerset Park, 3.55%, 11/1/17, AMT*................       500
   2,900    SCAPPA, Revenue, 91 Refunding Series, 3.40%, 7/1/19*...............................     2,900
   3,000    State of California, Tax Exempt Commercial Paper, 3.10%, 8/7/96....................     3,000
   1,000    State of California, Tax Exempt Commercial Paper, 3.35%, 11/14/96..................     1,000
   2,000    State of California, Tax Exempt Commercial Paper, 3.55%, 9/13/96...................     2,000
   6,865    Statewide Community Development Authority, Series 95A, 3.45%, 5/15/25*.............     6,866
     900    Vacaville Multi-Family Housing, The Sycamores Apartments, 3.40%, 4/1/05*...........       900
   1,000    Walnut Creek Multi-Family Housing, Creekside Drive Apartments, 3.40%, 4/1/07*......     1,000
                                                                                                 --------
   Total Municipal Securities                                                                     136,978
                                                                                                 --------
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       41
<PAGE>   591
LOGO                    CALIFORNIA TAX-FREE FUND
 
                  SCHEDULE OF PORTFOLIO INVESTMENTS, CONTINUED
                                 JULY 31, 1996
                              Amounts in Thousands
 
<TABLE>
<CAPTION>
SHARES OR
PRINCIPAL                                        SECURITY                                        AMORTIZED
 AMOUNT                                         DESCRIPTION                                        COST
- ---------   -----------------------------------------------------------------------------------  ---------
INVESTMENT COMPANIES $(7.6%):
<C>         <S>                                                                                  <C>
   5,214    Goldman Sachs California Tax-Exempt Money Market Fund..............................  $  5,214
   6,312    Provident California Money Market Fund.............................................     6,312
                                                                                                 --------
  Total Investment Companies                                                                       11,526
                                                                                                 --------
  Total                                                                                          $148,504 (a)
                                                                                                 ========
</TABLE>
 
- ------------
Percentages indicated are based on net assets of $151,979.
 
<TABLE>
<C>  <S>
(a)  Cost for federal income tax and financial reporting purposes are the same.
  *  Variable rate securities having liquidity sources through bank letters of credit or other credit and/or
     liquidity agreements. The interest rate, which will change periodically, is based upon bank prime rates or an
     index of market interest rates. The rate reflected on the Schedule of Portfolio Investments is the rate in
     effect at July 31, 1996.
   AMT      Alternative Minimum Tax Paper
   TRANs    Tax Revenue Anticipation Notes
</TABLE>
 
                       See notes to financial statements.
 
                                      LOGO
                                       42
<PAGE>   592
LOGO                               BOND FUND
 
                       SCHEDULE OF PORTFOLIO INVESTMENTS
                                 JULY 31, 1996
                              Amounts in Thousands
<TABLE>
<CAPTION>
  PRINCIPAL                SECURITY              MARKET
   AMOUNT                 DESCRIPTION             VALUE
- -------------   -------------------------------  -------
<S> <C>         <C>                              <C>
ASSET BACKED SECURITIES (17.4%):
     $   374    Advanta Mortgage Loan Trust,
                  7.90%, 3/25/07...............  $   375
       1,000    Carco Auto Loan Master Trust,
                  Series 1994-2, 7.88%,
                  8/15/97......................    1,018
         860    Carco Auto Loan Master Trust,
                  Series 1991-3,
                  7.88%,3/15/98................      869
       1,125    Contimortgage Home Equity Loan
                  Trust, 8.09%, 9/15/09........    1,144
       1,000    Contimortgage Home Equity Loan
                  Trust, 8.05%, 7/15/12........    1,016
       1,200    EQCC Home Equity Loan Trust,
                  7.80%, 12/15/10..............    1,196
       1,250    Green Tree Financial Corp.,
                  6.80%, 1/15/26...............    1,221
         500    MBNA Credit Card, 7.25%,
                  6/15/99......................      502
         738    Mid State Trust 4, 8.33%,
                  4/1/30.......................      765
         531    Premier Auto Receivable Trust,
                  4.90%, 10/15/98..............      525
       1,000    Standard Credit Card Master
                  Trust, 4.65%, 3/7/99.........      987
         600    UCFC Home Equity Loan, 7.78%,
                  12/10/06.....................      608
         496    UFSB Grantor Trust, 5.08%,
                  5/15/00......................      489
                                                 -------
  Total Asset Backed Securities                   10,715
                                                 -------
COLLATERALIZED MORTGAGE OBLIGATIONS (14.4%):
Bear Stearns Secured Investors:
         500    7.50%, 1/20/99.................      504
Country Wide Mortgage:
       1,021    6.75%, 3/25/08.................      995
Federal Home Loan Mortgage Corp.:
       1,500    6.25%, 1/15/24.................    1,347
 
<CAPTION>
  PRINCIPAL                SECURITY              MARKET
   AMOUNT                 DESCRIPTION             VALUE
- -------------   -------------------------------  -------
<S> <C>         <C>                              <C>
COLLATERALIZED MORTGAGE OBLIGATIONS, CONTINUED:
Federal National Mortgage Assoc.:
     $ 2,000    6.20%, 9/25/02.................  $ 1,928
       1,500    6.50%, 3/25/13.................    1,421
GE Capital Mortgage Service, Inc.:
       1,850    6.50%, 1/25/24.................    1,740
Residential Funding Mortgage:
         950    6.75%, 11/25/07................      910
                                                 -------
  Total Collateralized Mortgage Obligations        8,845
                                                 -------
CORPORATE BONDS (24.7%):
Automotive (3.9%):
       2,290    General Motors Acceptance
                  Corp., 8.00%, 10/1/99........    2,364
                                                 -------
Banking (5.2%):
       1,785    Bank of America, 6.00%,
                  7/15/97......................    1,779
         600    Citicorp, 6.75%, 8/15/05.......      572
         900    U.S. Bancorp, 6.75%,
                  10/15/05.....................      858
                                                 -------
                                                   3,209
                                                 -------
Computer Hardware (1.4%):
         800    IBM Corp., 8.38%, 11/1/19......      861
                                                 -------
Financial Services (1.0%):
         650    Golden West Financial, 6.70%,
                  7/1/02.......................      634
                                                 -------
Governments (Foreign) (2.7%):
         825    Hydro-Quebec, 8.05, 7/7/24.....      869
         785    Norske Hydro, 7.75, 6/15/23....      786
                                                 -------
                                                   1,655
                                                 -------
Industrial Goods & Services (1.3%):
         860    Caterpillar Tractor Co., 6.00%,
                  5/1/07.......................      772
                                                 -------
Retail Stores (5.8%):
         980    J.C. Penney Inc., 6.00%,
                  5/1/06.......................      883
         900    Sears Roebuck Co., 9.25%,
                  8/1/97.......................      925
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       43
<PAGE>   593
LOGO                               BOND FUND
 
                  SCHEDULE OF PORTFOLIO INVESTMENTS, CONTINUED
                                 JULY 31, 1996
                              Amounts in Thousands
<TABLE>
<CAPTION>
  PRINCIPAL                SECURITY              MARKET
   AMOUNT                 DESCRIPTION             VALUE
- -------------   -------------------------------  -------
<S> <C>         <C>                              <C>
CORPORATE BONDS, CONTINUED:
Retail Stores, continued:
     $ 1,850    Wal-Mart Stores, 6.38,
                  3/1/03.......................  $ 1,785
                                                 -------
                                                   3,593
                                                 -------
Telecommunications (3.4%):
       1,500    Bell Atlantic-Maryland, 8.00%,
                  10/15/29.....................    1,581
         500    New England Telephone &
                  Telegraph, 7.88%, 11/15/29...      524
                                                 -------
                                                   2,105
                                                 -------
  Total Corporate Bonds                           15,193
                                                 -------
U.S. GOVERNMENT AGENCIES (19.6%):
Federal Home Loan Bank:
         300    8.38%, 10/25/99................      315
Federal National Mortgage Assoc.:
       1,000    9.05%, 4/10/00.................    1,074
       1,750    5.45%, 10/10/03................    1,610
       1,625    6.50%, 3/1/24, Pool # 276510...    1,526
       1,659    8.50%, 5/1/25, Pool # 303300...    1,696
       1,018    6.50%, 5/1/26, Pool # 342718...      950
Government National Mortgage Association:
       1,836    6.50%, 6/15/23, Pool #
                  354601.......................    1,717
         616    6.50%, 12/15/23, Pool #
                  369270.......................      574
         823    7.50%, 1/15/24, Pool #
                  352844.......................      811
         157    7.50%, 1/15/24, Pool #
                  360285.......................      154
          34    7.50%, 1/15/24, Pool #
                  362734.......................       34
         299    7.50%, 1/15/24, Pool #
                  368677.......................      294
 
<CAPTION>
  PRINCIPAL                SECURITY              MARKET
   AMOUNT                 DESCRIPTION             VALUE
- -------------   -------------------------------  -------
<S> <C>         <C>                              <C>
U.S. GOVERNMENT AGENCIES, CONTINUED:
Government National Mortgage Assoc., continued:
     $   371    7.50%, 2/15/24, Pool #
                  353297.......................  $   366
          70    7.50%, 2/15/24, Pool #
                  336245.......................       69
         906    7.00%, 4/15/24, Pool #
                  392055.......................      869
                                                 -------
  Total U.S. Government Agencies                  12,059
                                                 -------
U.S. TREASURY BONDS (16.4%):
       1,500    10.38%, 11/15/12...............    1,894
       2,500    7.25%, 5/15/16.................    2,546
       2,360    8.75%, 8/15/20.................    2,804
       2,800    7.13%, 2/15/23.................    2,813
                                                 -------
  Total U.S. Treasury Bonds                       10,057
                                                 -------
U.S. TREASURY NOTES (3.1%):
       1,000    8.13%, 2/15/98.................    1,029
         430    9.00%, 5/15/98.................      450
         420    8.50%, 11/15/00................      451
                                                 -------
  Total U.S. Treasury Notes                        1,930
                                                 -------
  Total Investments, at value                     58,799
                                                 -------
REPURCHASE AGREEMENTS (3.6%):
       2,237    C.S. First Boston Corp., 5.62%,
                  8/1/96 (Collateralized by
                  2,046 U.S. Treasury Bonds,
                  8.75%, 11/15/08, market
                  value--$2,287)...............    2,237
                                                 -------
  Total Repurchase Agreements                      2,237
                                                 -------
  Total (Cost--$61,591)(a)                       $61,036
                                                 =======
</TABLE>
 
- ------------
Percentages indicated are based on net assets of $61,531.
 
(a) Represents cost for federal income tax purposes and differs from value by
    net unrealized depreciation of securities as follows (amounts in thousands):
 
<TABLE>
                    <S>                                                                   <C>
                    Unrealized appreciation............................................   $  816
                    Unrealized depreciation............................................   (1,371)
                                                                                          ------
                    Net unrealized depreciation........................................   $ (555)
                                                                                          ======
</TABLE>
 
                       See notes to financial statements.
 
                                      LOGO
                                       44
<PAGE>   594
LOGO                    INCOME EQUITY FUND
 
                       SCHEDULE OF PORTFOLIO INVESTMENTS
                                 JULY 31, 1996
         (Amounts in Thousands, Except for Shares or Principal Amount)
<TABLE>
<CAPTION>
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
    ----------    ---------------------------  --------
<S> <C>           <C>                          <C>
COMMON STOCKS (97.8%):
Aerospace (2.0%):
       153,100    B.F. Goodrich Co...........  $  5,550
                                               --------
Banks (12.7%):
       213,650    Banc One Corp..............     7,398
        82,200    BankAmerica Corp...........     6,555
       122,800    Fleet Financial Group,
                    Inc......................     4,973
        77,900    J. P. Morgan & Co..........     6,699
        82,700    National City Corp.........     2,864
        95,050    U.S. Bancorp...............     3,256
        64,700    Wachovia Corp..............     2,863
                                               --------
                                                 34,608
                                               --------
Beverages (2.0%):
        72,000    Anheuser-Busch Co..........     5,382
                                               --------
Business Equipment & Services (0.6%):
        34,600    Pitney Bowes, Inc..........     1,678
                                               --------
Chemicals-Petroleum & Inorganic (2.1%):
        77,200    Dow Chemical Co............     5,742
                                               --------
Chemicals-Specialty (1.8%):
        55,200    Betz Labs, Inc.............     2,505
        83,500    Witco Corp.................     2,421
                                               --------
                                                  4,926
                                               --------
Commercial Goods & Services (1.2%):
        87,000    National Services
                    Industries, Inc..........     3,317
                                               --------
Consumer Goods & Services (1.2%):
        36,600    Clorox Co..................     3,326
                                               --------
Cosmetics & Toiletries (0.9%):
        56,300    International Flavors &
                    Fragrances, Inc..........     2,407
                                               --------
Electrical Equipment (1.0%):
        70,800    Thomas & Betts Corp........     2,584
                                               --------
 
<CAPTION>
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
    ----------    ---------------------------  --------
<S> <C>           <C>                          <C>
COMMON STOCKS, CONTINUED:
Environmental Services (0.3%):
        37,700    Browning-Ferris Industries,
                    Inc......................  $    844
                                               --------
Financial Services (3.2%):
       105,100    American General Corp......     3,652
        33,800    Beneficial Corp............     1,825
       106,700    Federal National Mortgage
                    Assoc....................     3,388
                                               --------
                                                  8,865
                                               --------
Food & Related (2.6%):
        94,300    General Mills, Inc.........     5,116
        63,150    H.J. Heinz Co..............     2,092
                                               --------
                                                  7,208
                                               --------
Forest & Paper Products (4.8%):
        43,700    Georgia-Pacific Corp.......     3,267
        92,470    International Paper Co.....     3,502
       154,700    Weyerhaeuser Co............     6,459
                                               --------
                                                 13,228
                                               --------
Health Care (5.9%):
        77,000    Bristol-Myers Squibb Co....     6,670
       102,000    Pharmacia & Upjohn Co......     4,208
        48,800    SmithKline Beecham PLC
                    ADR......................     2,623
        44,100    Warner-Lambert Co..........     2,403
                                               --------
                                                 15,904
                                               --------
Insurance-Life (0.8%):
        45,125    Jefferson Pilot Corp.......     2,369
                                               --------
Insurance-Multiline (1.8%):
        53,600    Marsh & McLennan Cos.,
                    Inc......................     4,857
                                               --------
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       45
<PAGE>   595
LOGO
                              INCOME EQUITY FUND
 
                  SCHEDULE OF PORTFOLIO INVESTMENTS, CONTINUED
                                 JULY 31, 1996
         (Amounts in Thousands, Except for Shares or Principal Amount)
 
<TABLE>
<CAPTION>
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
- -------------   -------------------------------  -------
<S> <C>           <C>                          <C>
COMMON STOCKS, CONTINUED:
Insurance-Property & Casualty (3.1%):
        42,500    Lincoln National Corp......  $  1,812
        78,300    SAFECO Corp................     2,696
        70,800    St. Paul Cos., Inc.........     3,664
                                               --------
                                                  8,172
                                               --------
Machinery & Equipment (1.2%):
        80,900    Cooper Industries, Inc.....     3,185
                                               --------
Medical Equipment & Supplies (0.6%):
        39,000    Baxter International,
                    Inc......................     1,623
                                               --------
Motor Vehicle Parts (0.9%):
        58,500    Genuine Parts Co...........     2,479
                                               --------
Motor Vehicles (0.9%):
        86,600    Chrysler Corp..............     2,457
                                               --------
Multiple Industry (3.1%):
        43,300    General Electric Co........     3,567
        76,000    Minnesota Mining &
                    Manufacturing Co.........     4,940
                                               --------
                                                  8,507
Petroleum-Domestic (4.5%):
        73,200    Atlantic Richfield Co......     8,491
        83,400    Dresser Industries Inc.....     2,252
        41,700    Phillips Petroleum Co......     1,647
                                               --------
                                                 12,390
                                               --------
Petroleum-Internationals (7.3%):
        95,300    Amoco Corp.................     6,373
        58,300    Chevron Corp...............     3,374
        52,300    Exxon Corp.................     4,302
        68,500    Texaco, Inc................     5,822
                                               --------
                                                 19,871
                                               --------
Publishing (0.9%):
        61,400    McGraw-Hill, Inc...........     2,395
                                               --------
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
- -------------   -------------------------------  -------
COMMON STOCKS, CONTINUED:
Railroad (0.5%):
        20,500    Union Pacific Corp.........  $  1,404
                                               --------
Retail-General Merchandise (4.1%):
       173,100    J.C. Penney, Inc...........     8,612
        59,000    May Department Stores
                    Co.......................     2,647
                                               --------
                                                 11,259
                                               --------
Telecommunications (7.2%):
        25,600    Ameritech Corp.............     1,421
        67,300    Bell Atlantic Corp.........     3,979
        63,400    BellSouth Corp.............     2,599
       118,500    GTE Corp...................     4,888
        91,300    Nynex Corp.................     4,097
        86,170    U.S. West, Inc.............     2,618
                                               --------
                                                 19,602
                                               --------
Tobacco (6.5%):
        94,500    American Brands, Inc.......     4,300
        85,400    Phillip Morris Cos.,
                    Inc......................     8,935
       139,400    UST, Inc...................     4,635
                                               --------
                                                 17,870
                                               --------
Utilities-Electric (8.3%):
       123,400    Baltimore Gas & Electric
                    Co.......................     3,178
       115,400    Central & South West
                    Corp.....................     3,087
        36,600    Dominion Resources.........     1,377
        72,500    Florida Progress Corp......     2,429
        70,000    PacifiCorp.................     1,461
       118,900    Teco Energy, Inc...........     2,764
       102,400    Texas Utilities Co.........     4,301
       147,200    Wisconsin Energy Corp......     3,919
                                               --------
                                                 22,516
                                               --------
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       46
<PAGE>   596
LOGO
                              INCOME EQUITY FUND
 
                  SCHEDULE OF PORTFOLIO INVESTMENTS, CONTINUED
                                 JULY 31, 1996
         (Amounts in Thousands, Except for Shares or Principal Amount)
 
<TABLE>
<CAPTION>
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
    ----------    ---------------------------  --------
<S> <C>           <C>                          <C>
COMMON STOCKS, CONTINUED:
Utilities--Gas & Pipeline (3.8%):
       128,200    Consolidated Natural Gas
                    Co.......................  $  6,458
        44,100    Nicor, Inc.................     1,251
        51,500    Tenneco, Inc...............     2,537
                                               --------
                                                 10,246
                                               --------
  Total Common Stocks                           266,771
                                               --------
  Total Investments, at value                   266,771
                                               --------
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
    ----------    ---------------------------  --------
REPURCHASE AGREEMENTS (1.8%):
    $4,857,527    C. S. First Boston Corp.,
                    5.62%, 8/1/96
                    (Collateralized by 3,888
                    U.S. Treasury Bonds,
                    10.38%, 11/15/12, market
                    value--$4,961)...........  $  4,858
                                               --------
  Total Repurchase Agreements                     4,858
                                               --------
  Total (Cost--$237,280)(a)                    $271,629
                                               ========
</TABLE>
 
- ------------
 
Percentages indicated are based on net assets of $272,803.
 
(a) Represents cost for financial reporting purposes and differs from cost basis
    for federal income tax purposes by the amount of losses recognized for
    financial reporting in excess of federal income tax reporting of
    approximately $64 (amount in thousands). Cost for federal income tax
    purposes differs from value by net unrealized appreciation of securities as
    follows (amounts in thousands):
 
<TABLE>
                    <S>                                                                 <C>
                    Unrealized appreciation..........................................   $ 38,217
                    Unrealized depreciation..........................................     (3,932)
                                                                                        --------
                    Net unrealized appreciation......................................   $ 34,285
                                                                                         =======
</TABLE>
 
ADR -- American Depository Receipt
PLC -- Public Limited Company
 
                       See notes to financial statements.
 
                                      LOGO
                                       47
<PAGE>   597
LOGO
                                BALANCED FUND
 
                       SCHEDULE OF PORTFOLIO INVESTMENTS
                                 JULY 31, 1996
         (Amounts in Thousands, Except for Shares or Principal Amount)
<TABLE>
<CAPTION>
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
    ----------    ---------------------------  --------
<S> <C>           <C>                          <C>
ASSET BACKED SECURITIES (4.0%)
    $  205,000    Carco Auto Loan Master
                    Trust, Series 1994-2,
                    7.88%, 3/15/98...........  $    207
       190,000    Carco Auto Loan Master
                    Trust, Series 1991-3,
                    7.88%, 8/15/97...........       194
       200,000    Contimortgage Home Equity
                    Loan Trust, 8.09%,
                    9/15/09..................       203
       200,000    Contimortgage Home Equity
                    Loan Trust, 7.44%,
                    9/15/12..................       197
       250,000    Green Tree Financial Corp.,
                    6.80%, 1/15/26...........       244
       400,000    Standard Credit Card
                    MasterTrust, 4.65%,
                    3/7/99...................       395
       165,324    UFSB Grantor Trust, 5.08%,
                    5/15/00..................       163
                                               --------
   Total Asset Backed Securities                  1,603
                                               --------
COLLATERALIZED MORTGAGE OBLIGATIONS (2.3%):
        86,516    Country Wide Mortgage,
                    6.75%, 3/25/08...........        84
       500,000    Federal Home Loan Mortgage
                    Corp., 6.25%, 1/15/24....       449
       250,000    GE Capital Mortgage
                    Service, Inc., 1994-1,
                    6.50%, 1/25/24...........       235
       175,000    Residential Funding
                    Mortgage, 6.75%,
                    11/25/07.................       168
                                               --------
   Total Collateralized Mortgage Obligations
                                                    936
                                               --------
 
<CAPTION>
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
    ----------    ---------------------------  --------
<S> <C>           <C>                          <C>
COMMON STOCKS (52.6%):
Aerospace (0.5%):
         5,800    B.F. Goodrich Co...........  $    210
                                               --------
Air Transportation (0.4%):
         1,300    Federal Express Corp.
                    (b)......................       101
         2,200    Southwest Airlines Co......        55
                                               --------
                                                    156
                                               --------
Banks (3.9%):
         2,970    Banc One Corp..............       103
         4,800    BankAmerica Corp...........       383
         3,300    Chase Manhattan Corp.......       229
         8,000    Fleet Financial Group,
                    Inc......................       324
         1,300    J.P. Morgan & Co...........       112
         3,300    National City Corp.........       114
         6,000    Norwest Corp...............       213
         2,400    Wachovia Corp..............       106
                                               --------
                                                  1,584
                                               --------
Beverages (2.5%):
         6,200    Anheuser-Busch Co..........       463
         5,600    Coca-Cola Co...............       263
         8,200    PepsiCo, Inc...............       259
                                               --------
                                                    985
                                               --------
Building Materials (0.4%):
         5,600    Masco Corp.................       156
                                               --------
Business Equipment & Services (0.6%):
         1,900    Dun & Bradstreet Corp......       109
         2,800    Pitney Bowes, Inc..........       136
                                               --------
                                                    245
                                               --------
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       48
<PAGE>   598
LOGO
                                BALANCED FUND
 
                  SCHEDULE OF PORTFOLIO INVESTMENTS, CONTINUED
                                 JULY 31, 1996
         (Amounts in Thousands, Except for Shares or Principal Amount)
 
<TABLE>
<CAPTION>
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
    ----------    ---------------------------  --------
<S> <C>           <C>                          <C>
COMMON STOCKS, CONTINUED:
Chemicals--Petroleum & Inorganic (0.9%):
         1,400    Dow Chemical Co............  $    104
         1,400    duPont, (E.I.) de Nemours
                    Co.......................       113
         5,000    Monsanto Corp..............       156
                                               --------
                                                    373
                                               --------
Chemicals--Specialty (0.3%):
         3,000    Betz Labs, Inc.............       136
                                               --------
Commercial Goods & Services (0.3%):
         3,000    National Services
                    Industries, Inc..........       114
                                               --------
Computers--Main & Mini (0.5%):
         2,000    International Business
                    Machines Corp............       216
                                               --------
Computers (0.3%):
         2,800    Seagate Technology, Inc.
                    (b)......................       136
                                               --------
Computer Software (1.0%):
         1,900    Electronic Data Systems
                    Corp. (b)................       101
         1,300    Microsoft Corp. (b)........       153
         2,400    Shared Medical Systems
                    Corp.....................       132
                                               --------
                                                    386
                                               --------
Construction Materials (0.3%):
         3,700    Fleetwood Enterprises,
                    Inc......................       112
                                               --------
Cosmetics & Toiletries (0.8%):
         2,900    Colgate-Palmolive Co.......       228
         2,600    International Flavors &
                    Fragrances, Inc..........       111
                                               --------
                                                    339
                                               --------
Defense (0.7%):
         5,400    Raytheon Co................       262
                                               --------
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
    ----------    ---------------------------  --------
COMMON STOCKS, CONTINUED:
Electrical Equipment (4.5%):
         7,600    AMP, Inc...................  $    294
         2,600    Duracell International,
                    Inc......................       117
         2,500    Emerson Electric Co........       211
         7,700    General Electric Co........       634
         5,600    Intel Corp.................       421
         3,300    Thomas & Betts Corp........       120
                                               --------
                                                  1,797
                                               --------
Electronics (0.6%):
         4,800    Motorola, Inc..............       259
                                               --------
Electronic Instruments (0.4%):
         4,100    Texas Instruments, Inc.....       177
                                               --------
Environmental Services (0.3%):
         6,000    Browning-Ferris Industries,
                    Inc......................       134
                                               --------
Financial Services (1.2%):
         6,600    American General Corp......       230
         7,600    Federal National Mortgage
                    Assoc....................       241
                                               --------
                                                    471
                                               --------
Food & Related (1.6%):
         3,700    General Mills, Inc.........       201
         6,450    H. J. Heinz Co.............       213
         1,500    Hershey Foods Corp.........       123
         1,700    Ralston-Purina Co..........       107
                                               --------
                                                    644
                                               --------
Forest & Paper Products (1.4%):
         2,700    Georgia Pacific Corp.......       202
         2,200    International Paper Co.....        83
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       49
<PAGE>   599
LOGO
                                BALANCED FUND
 
                  SCHEDULE OF PORTFOLIO INVESTMENTS, CONTINUED
                                 JULY 31, 1996
         (Amounts in Thousands, Except for Shares or Principal Amount)
 
<TABLE>
<CAPTION>
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
    ----------    ---------------------------  --------
<S> <C>           <C>                          <C>
COMMON STOCKS, CONTINUED:
Forest & Paper Products, continued:
         1,500    Kimberly Clark Corp........  $    114
         4,000    Weyerhaeuser Co............       167
                                               --------
                                                    566
                                               --------
Health Care--General (1.1%):
         2,500    Bristol-Myers Squibb Co....       217
         5,000    Johnson & Johnson..........       239
                                               --------
                                                    456
                                               --------
Hospital Supply & Management (0.5%):
         4,100    Columbia/HCA Healthcare
                    Corp.....................       210
                                               --------
Household--General Products (0.4%):
         6,100    Rubbermaid, Inc............       175
                                               --------
Insurance--Life (0.3%):
         2,250    Jefferson Pilot Corp.......       118
                                               --------
Insurance--Multiline (0.9%):
         1,761    Allstate Corp..............        79
         3,300    Marsh & McLennan
                    Cos., Inc................       299
                                               --------
                                                    378
                                               --------
Insurance--Property & Casualty (1.0%):
         1,500    General Re Corp............       220
         2,100    Hartford Steam Boiler
                    Inspection & Insurance
                    Co.......................        92
         1,900    St. Paul Cos., Inc.........        98
                                               --------
                                                    410
                                               --------
Machinery & Equipment (0.5%):
         4,300    Snap-On, Inc...............       191
                                               --------
Manufacturing (0.7%):
           500    Imation Corp. (b)..........        11
         2,700    Ingersoll-Rand Co..........       115
         2,500    Service Corp.
                    International............       138
                                               --------
                                                    264
                                               --------
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
    ----------    ---------------------------  --------
COMMON STOCKS, CONTINUED:
Medical Equipment & Supplies (0.5%):
         5,000    Baxter International,
                    Inc......................  $    208
                                               --------
Motor Vehicle Parts (0.3%):
         2,400    Genuine Parts Co...........       102
                                               --------
Motor Vehicles (0.5%):
         5,900    Ford Motor Co..............       192
                                               --------
Multiple Industry (1.8%):
        10,800    Corning, Inc...............       398
         5,000    Minnesota Mining &
                    Manufacturing Co.........       325
                                               --------
                                                    723
                                               --------
Petroleum--Domestic (1.2%):
         1,900    Atlantic Richfield Co......       220
         6,700    Phillips Petroleum Co......       265
                                               --------
                                                    485
                                               --------
Petroleum--Internationals (3.2%):
         4,600    Amoco Corp.................       308
         5,600    Chevron Corp...............       324
         2,700    Exxon Corp.................       222
         2,000    Mobil Corp.................       221
         2,400    Texaco, Inc................       204
                                               --------
                                                  1,279
                                               --------
Petroleum--Services (0.9%):
         9,300    Baker Hughes, Inc..........       273
         2,000    Halliburton Co.............       104
                                               --------
                                                    377
                                               --------
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       50
<PAGE>   600
LOGO
                                BALANCED FUND
 
                  SCHEDULE OF PORTFOLIO INVESTMENTS, CONTINUED
                                 JULY 31, 1996
         (Amounts in Thousands, Except for Shares or Principal Amount)
 
<TABLE>
<CAPTION>
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
    ----------    ---------------------------  --------
<S> <C>           <C>                          <C>
COMMON STOCKS, CONTINUED:
Pharmaceuticals (2.3%):
         2,600    Abbott Laboratories........  $    114
         3,800    Merck & Co., Inc...........       244
         3,300    Pfizer, Inc................       231
         1,800    Schering-Plough Corp.......        99
         4,600    Warner Lambert Co..........       251
                                               --------
                                                    939
                                               --------
Photographic Equipment (0.3%):
         1,600    Eastman Kodak Co...........       120
                                               --------
Publishing (0.6%):
         3,500    Gannett Co., Inc...........       230
                                               --------
Railroad (1.0%):
         3,100    Burlington Northern Santa
                    Fe.......................       245
         2,100    Union Pacific Corp.........       144
                                               --------
                                                    389
                                               --------
Restaurants (0.2%):
         6,800    Brinker International,
                    Inc. (b).................        89
                                               --------
Retail--General Merchandise (1.3%):
         4,400    J.C. Penney, Inc...........       219
         2,800    Sears Roebuck & Co.........       115
         6,900    Wal-Mart Stores, Inc.......       165
                                               --------
                                                    499
                                               --------
Retail--Specialty Stores (0.5%):
         5,500    Albany International, Class
                    A........................       102
         2,200    Home Depot, Inc............       111
                                               --------
                                                    213
                                               --------
Tobacco (1.2%):
         2,500    Phillip Morris Cos.,
                    Inc......................       262
         6,200    UST, Inc...................       206
                                               --------
                                                    468
                                               --------
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
    ----------    ---------------------------  --------
COMMON STOCKS, CONTINUED:
Tools (0.3%):
         3,800    Stanley Works..............  $    108
                                               --------
Toys (0.3%):
         4,250    Mattel, Inc................       105
                                               --------
Utilities--Electric (2.5%):
         4,600    FPL Group, Inc.............       209
         9,500    PacifiCorp.................       198
         9,000    Potomac Electric Power
                    Co. (b)..................       217
         6,500    Public Service Enterprise
                    Group, Inc...............       170
         5,100    Texas Utilities Co.........       214
                                               --------
                                                  1,008
                                               --------
Utilities--Gas & Pipeline (0.9%):
         2,600    Consolidated Natural Gas
                    Co.......................       131
         4,100    Pacific Enterprises........       121
         1,900    Tenneco, Inc...............        94
                                               --------
                                                    346
                                               --------
Utilities--Telephone (4.0%):
        11,400    AirTouch Communications,
                    Inc. (b).................       313
         3,800    Ameritech Corp.............       211
         4,500    AT&T Corp..................       235
         5,000    BellSouth Corp.............       205
         2,100    DSC Communications
                    Corp. (b)................        63
         5,700    GTE Corp...................       235
           400    Lucent Technologies,
                    Inc......................        15
         3,500    MCI Telecommunications
                    Corp.....................        86
</TABLE>
 
                                   Continued
 
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                                       51
<PAGE>   601
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                                BALANCED FUND
 
                  SCHEDULE OF PORTFOLIO INVESTMENTS, CONTINUED
                                 JULY 31, 1996
         (Amounts in Thousands, Except for Shares or Principal Amount)
<TABLE>
<CAPTION>
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
    ----------    ---------------------------  --------
<S> <C>           <C>                          <C>
COMMON STOCKS, CONTINUED:
Utilities--Telephone, continued:
         4,000    Network Equipment
                    Technologies, Inc. (b)...  $     53
         6,100    U.S. West, Inc.............       185
                                               --------
                                                  1,601
                                               --------
   Total Common Stocks                           21,141
                                               --------
CORPORATE BONDS (6.8%):
Automotive (1.6%):
    $  300,000    Ford Capital, 9.38%,
                    1/1/98...................       312
       305,000    General Motors Acceptance
                    Corp., 8.00%, 10/1/99....       315
                                               --------
                                                    627
                                               --------
Banking (1.1%):
       215,000    Bank of America, 6.00%,
                    7/15/97..................       214
       100,000    Citicorp, 6.75%, 8/15/05...        96
       150,000    U.S. Bancorp, 6.75%,
                    10/15/05.................       143
                                               --------
                                                    453
                                               --------
Beverages (0.2%):
        95,000    Bass America, Inc., 6.75%,
                    8/1/99...................        95
                                               --------
Computer Hardware (0.5%):
       200,000    IBM Corp., 8.38%,11/1/19...       215
                                               --------
Financial Services (0.2%):
       100,000    Golden West Financial
                    Corp., 6.70%, 7/1/02.....        97
                                               --------
Governments (Foreign) (0.8%):
    $  100,000    Hydro-Quebec, 8.05%,
                    7/7/24...................       106
       215,000    Norske Hydro, 7.75%,
                    6/15/23..................       215
                                               --------
                                                    321
                                               --------
 
<CAPTION>
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
    ----------    ---------------------------  --------
<S> <C>           <C>                          <C>
CORPORATE BONDS, CONTINUED:
Industrial Goods & Services (0.5%):
       205,000    Caterpillar Tractor Co.,
                    6.00%, 5/1/07............  $    184
                                               --------
Retail Stores (1.1%):
       100,000    J.C. Penney, Inc., 6.00%,
                    5/1/06...................        90
       150,000    Sears Roebuck Co., 9.25%,
                    8/1/97...................       154
       200,000    Wal-Mart Stores, Inc.,
                    6.38%, 3/1/03............       193
                                               --------
                                                    437
                                               --------
Telecommunications (0.8%):
       175,000    Bell Atlantic Maryland,
                    8.00%,10/15/29...........       184
       125,000    New England Telephone &
                    Telegraph Co., 7.88%,
                    11/15/29.................       131
                                               --------
                                                    315
                                               --------
   Total Corporate Bonds                          2,744
                                               --------
U.S. GOVERNMENT AGENCIES (10.2%):
Federal National Mortgage Assoc.:
     1,350,000    5.45%, 10/10/03............     1,242
       316,003    6.50%, 3/1/24, Pool
                    #276510..................       297
       999,999    8.00%, 7/1/26..............     1,006
</TABLE>
 
                                   Continued
 
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                                       52
<PAGE>   602
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                                BALANCED FUND
 
                  SCHEDULE OF PORTFOLIO INVESTMENTS, CONTINUED
                                 JULY 31, 1996
         (Amounts in Thousands, Except for Shares or Principal Amount)
<TABLE>
<CAPTION>
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
    ----------    ---------------------------  --------
<S> <C>           <C>                          <C>
U.S. GOVERNMENT AGENCIES, CONTINUED:
Government National Mortgage Assoc.
    $   95,076    6.50%, 2/15/24, Pool
                    #388599..................  $     88
       484,019    7.50%, 5/15/24, Pool
                    #386494..................       476
     1,016,375    7.00%, 2/15/26.............       972
                                               --------
   Total U.S. Government Agencies                 4,081
                                               --------
U.S. TREASURY BONDS (6.3%):
     1,150,000    7.25%, 5/15/16.............     1,171
       205,000    8.75%, 8/15/20.............       244
     1,125,000    7.13%, 2/15/23.............     1,130
                                               --------
   Total U.S. Treasury Bonds                      2,545
                                               --------
U.S. TREASURY NOTES (8.0%):
       200,000    8.13%, 2/15/98.............       206
     1,000,000    8.25%, 7/15/98.............     1,037
 
<CAPTION>
      SHARES
        OR
    PRINCIPAL              SECURITY             MARKET
      AMOUNT              DESCRIPTION           VALUE
    ----------    ---------------------------  --------
<S> <C>           <C>                          <C>
U.S. TREASURY NOTES, CONTINUED:
    $1,000,000    5.50%, 4/15/00.............  $    969
       500,000    8.50%, 11/15/00............       536
       500,000    5.88%, 2/15/04.............       475
                                               --------
  Total U.S. Treasury Notes                       3,223
                                               --------
  Total Investments, at value                    36,273
                                               --------
REPURCHASE AGREEMENTS (9.4%):
     3,786,776    C.S. First Boston Corp.,
                    Repurchase Agreement,
                    5.62%, 8/1/96
                    (Collateralized by 3,033
                    U.S. Treasury Bonds,
                    10.38%, 11/15/12 , market
                    value $3,870)............     3,787
                                               --------
  Total Repurchase Agreements                     3,787
                                               --------
  Total (Cost--$35,946)(a)                     $ 40,060
                                               ========
</TABLE>
 
- ------------
 
Percentages indicated are based on net assets of $40,196.
 
(a) Represents cost for financial reporting purposes and differs from cost basis
    for federal income tax purposes by the amount of losses recognized for
    financial reporting in excess of federal income tax reporting of
    approximately $14 (amount in thousands). Cost for federal income tax
    purposes differs from value by net unrealized appreciation of securities as
    follows (amounts in thousands):
 
<TABLE>
                    <S>                                                                 <C>
                    Unrealized appreciation..........................................   $  4,702
                    Unrealized depreciation..........................................       (602)
                                                                                        --------
                    Net unrealized appreciation......................................   $  4,100
                                                                                         =======
</TABLE>
 
(b) Represents non-income producing securities.
 
                       See notes to financial statements.
 
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                                       53
<PAGE>   603
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                                 GROWTH FUND
 
                       SCHEDULE OF PORTFOLIO INVESTMENTS
                                 JULY 31, 1996
         (Amounts in Thousands, Except for Shares or Principal Amount)
<TABLE>
<CAPTION>
    SHARES OR
    PRINCIPAL             SECURITY              MARKET
     AMOUNT              DESCRIPTION             VALUE
    ---------  -----------------------------    ------
<S> <C>         <C>                            <C>
COMMON STOCKS (98.2%):
Aerospace (2.0%):
       24,565   B.F. Goodrich................  $    890
                                               --------
Banks (8.4%):
       10,365   BankAmerica Corp.............       827
        3,280   Barnett Banks, Inc...........       201
       16,030   Chase Manhattan..............     1,114
       16,830   Fleet Financial Group,
                  Inc........................       681
        3,825   Wells Fargo & Co.............       891
                                               --------
                                                  3,714
                                               --------
Beverages (5.4%):
        8,985   Anheuser-Busch Co............       672
       19,215   Coca-Cola Co.................       901
       26,390   PepsiCo, Inc.................       834
                                               --------
                                                  2,407
                                               --------
Business Equipment & Services (0.3%):
        9,080   OfficeMax, Inc. (b)..........       120
                                               --------
Capital Equipment (0.5%):
        3,240   Illinois Tool Works..........       209
                                               --------
Chemicals--Petroleum & Inorganic (0.4%):
        3,750   Hercules, Inc................       188
                                               --------
Computers--Main & Mini (4.0%):
        9,610   Ceridan Corp. (b)............       418
       14,660   Hewlett Packard Co...........       645
        4,375   International Business
                  Machines...................       472
        4,685   Silicon Graphics, Inc. (b)...       110
        2,140   Sun Microsystems, Inc. (b)...       117
                                               --------
                                                  1,762
                                               --------
 
<CAPTION>
    SHARES OR
    PRINCIPAL             SECURITY              MARKET
     AMOUNT              DESCRIPTION             VALUE
    ---------  -----------------------------    ------
<S> <C>         <C>                            <C>
COMMON STOCKS, CONTINUED:
Computer Software (10.6%):
        2,885   Automatic Data Processing,
                  Inc........................  $    114
       17,005   Cisco Systems (b)............       880
       11,888   Computer Associates
                  International, Inc.........       605
        3,355   Computer Sciences (b)........       228
       17,770   Electronic Data Systems
                  Corp. (b)..................       940
       11,588   First Data Corp..............       899
        3,705   Microsoft Corp. (b)..........       437
       10,045   Oracle Systems Corp. (b).....       393
        5,350   Parametric Technology Corp.
                  (b)........................       223
                                               --------
                                                  4,719
                                               --------
Computers (2.0%):
        5,840   Digital Equipment (b)........       207
       14,390   Seagate Technology (b).......       696
                                               --------
                                                    903
                                               --------
Consumer Goods & Services (1.6%):
       21,715   Xilinx, Inc. (b).............       703
                                               --------
Cosmetics & Toiletries (4.1%):
        4,720   Avon Products................       208
        5,485   Colgate-Palmolive Co.........       430
       15,360   Gillette Co..................       977
        5,110   Ingersoll-Rand Co............       218
                                               --------
                                                  1,833
                                               --------
Durable Goods (0.6%):
       15,870   Coleman, Inc. (b)............       282
                                               --------
Electronics (0.6%):
        5,170   Motorola, Inc................       279
                                               --------
</TABLE>
 
                                   Continued
 
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                                       54
<PAGE>   604
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                                 GROWTH FUND
 
                  SCHEDULE OF PORTFOLIO INVESTMENTS, CONTINUED
                                 JULY 31, 1996
         (Amounts in Thousands, Except for Shares or Principal Amount)
 
<TABLE>
<CAPTION>
    SHARES OR
    PRINCIPAL             SECURITY              MARKET
     AMOUNT              DESCRIPTION             VALUE
    ---------  -----------------------------    ------
<S> <C>         <C>                            <C>
COMMON STOCKS, CONTINUED:
Electrical Equipment (6.5%):
        5,480   AMP, Inc.....................  $    212
       10,640   Duracell International,
                  Inc........................       480
       11,860   General Electric Co..........       977
       13,275   Intel Corp...................       997
       14,810   National Semiconductor
                  Corp. (b)..................       209
                                               --------
                                                  2,875
                                               --------
Electronic Components (0.2%):
        3,245   Applied Materials, Inc.
                  (b)........................        77
                                               --------
Electronic Instruments (0.4%):
        4,220   Texas Instruments, Inc.......       183
                                               --------
Entertainment (0.8%):
        7,080   Circus Circus Enterprises,
                  Inc. (b)...................       217
        6,715   Harrah's Entertainment (b)...       148
                                               --------
                                                    365
                                               --------
Financial Services (7.2%):
       14,835   American Express Co..........       649
        5,745   Federal Home Loan Mortgage
                  Corp.......................       484
       30,635   Federal National Mortgage
                  Assoc......................       973
        1,405   Household International,
                  Inc........................       105
       10,926   Mutual Risk Management
                  Ltd........................       307
       15,935   Travelers Corp. (b)..........       673
                                               --------
                                                  3,191
                                               --------
Food & Related (1.6%):
        2,550   General Mills, Inc...........       138
        2,950   Hershey Foods................       242
        5,397   Ralston-Purina Co............       339
                                               --------
                                                    719
                                               --------
    SHARES OR
    PRINCIPAL             SECURITY              MARKET
     AMOUNT              DESCRIPTION             VALUE
    ---------  -----------------------------    ------
COMMON STOCKS, CONTINUED:
Forest & Paper Products (1.1%):
        5,605   Albany International Corp.,
                  Class A....................  $    104
        1,220   Georgia Pacific Corp.........        91
        2,340   International Paper Co.......        89
        5,280   Weyerhaeuser Co..............       220
                                               --------
                                                    504
                                               --------
Healthcare--Drugs (8.1%):
        4,962   Abbott Laboratories..........       218
        3,820   American Home Products
                  Corp.......................       217
        8,501   Amgen, Inc. (b)..............       464
        7,240   Merck & Co...................       465
        9,090   Pfizer, Inc..................       635
       15,850   Pharmacia & Upjohn Co........       654
       11,240   Schering Plough Corp.........       620
        6,270   Warner-Lambert Co............       342
                                               --------
                                                  3,615
                                               --------
Healthcare--General (2.0%):
       18,230   Johnson & Johnson............       870
                                               --------
Hospital Supply & Management (0.5%):
        4,081   Columbia/HCA Healthcare
                  Corp.......................       209
                                               --------
Hotel Management & Related Services (0.4%):
        7,392   Promus Hotel Corp. (b).......       202
                                               --------
Household-General Products (0.5%):
        2,270   Proctor & Gamble Co..........       203
                                               --------
Insurance--Multiline (0.5%):
        2,547   Allstate Corp................       114
        1,400   Marsh & McLennan Cos.,
                  Inc........................       127
                                               --------
                                                    241
                                               --------
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       55
<PAGE>   605
LOGO 
                                 GROWTH FUND
 
                  SCHEDULE OF PORTFOLIO INVESTMENTS, CONTINUED
                                 JULY 31, 1996
         (Amounts in Thousands, Except for Shares or Principal Amount)
 
<TABLE>
<CAPTION>
    SHARES OR
    PRINCIPAL             SECURITY              MARKET
     AMOUNT              DESCRIPTION             VALUE
    ---------  -----------------------------    ------
<S> <C>         <C>                            <C>
COMMON STOCKS, CONTINUED:
Insurance--Property & Casualty (2.3%):
        5,955   American International Group,
                  Inc........................  $    560
        1,560   General Re Corp..............       229
        2,985   MBIA, Inc....................       226
                                               --------
                                                  1,015
                                               --------
Leisure Time Industry (2.2%):
       17,405   The Walt Disney Co...........       968
                                               --------
Machinery & Equipment (0.4%):
        5,275   Deere & Co...................       189
                                               --------
Manufacturing (1.1%):
        8,480   Service Corp.
                  International..............       468
                                               --------
Medical Equipment & Supplies (1.3%):
        6,469   Chiron Corp. (b).............       569
                                               --------
Petroleum--Internationals (2.1%):
        7,515   Amoco Corp...................       503
        5,305   Exxon Corp...................       436
                                               --------
                                                    939
                                               --------
Petroleum--Services (1.3%):
        4,835   Baker Hughes, Inc............       142
        3,655   Dresser Industries Inc.......        99
        4,520   Halliburton Co...............       236
        1,215   Schlumberger Ltd.............        97
                                               --------
                                                    574
                                               --------
Pharmaceuticals (2.0%):
       17,370   ALZA Corp., Class A (b)......       430
        4,900   Astra AB, Class A (b)........       207
        4,500   SmithKline Beecham
                  PLC-ADR....................       242
                                               --------
                                                    879
                                               --------
    SHARES OR
    PRINCIPAL             SECURITY              MARKET
     AMOUNT              DESCRIPTION             VALUE
    ---------  -----------------------------    ------
COMMON STOCKS, CONTINUED:
Publishing (2.0%):
       13,535   Gannett Co., Inc.............  $    888
                                               --------
Restaurants (2.5%):
       23,720   McDonald's Corp..............     1,100
                                               --------
Retail--Food Stores (0.8%):
        9,425   Safeway, Inc. (b)............       339
                                               --------
Retail--General Merchandise (1.5%):
       11,480   Price/Costco, Inc. (b).......       235
       10,625   Sears Roebuck & Co...........       436
                                               --------
                                                    671
                                               --------
Retail--Speciality Stores (1.4%):
        8,190   Home Depot, Inc..............       414
        7,215   Toys R Us (b)................       190
                                               --------
                                                    604
                                               --------
Telecommunications (1.3%):
       12,585   Airtouch (b).................       346
        6,555   Lucent Technologies, Inc.....       243
                                               --------
                                                    589
                                               --------
Telecommunications--Equipment (0.2%):
        5,115   Network Equipment
                  Technologies (b)...........        68
                                               --------
Tobacco (2.3%):
        8,700   Phillip Morris Cos., Inc.....       910
        3,105   UST..........................       103
                                               --------
                                                  1,013
                                               --------
Toys (1.4%):
       25,040   Mattel, Inc..................       620
                                               --------
Utilities--Gas & Pipeline (0.3%):
        2,305   Tenneco, Inc.................       114
                                               --------
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       56
<PAGE>   606
LOGO
                                 GROWTH FUND
 
                  SCHEDULE OF PORTFOLIO INVESTMENTS, CONTINUED
                                 JULY 31, 1996
         (Amounts in Thousands, Except for Shares or Principal Amount)
 
<TABLE>
<CAPTION>
    SHARES OR
    PRINCIPAL             SECURITY              MARKET
     AMOUNT              DESCRIPTION             VALUE
    ---------  -----------------------------    ------
<S> <C>         <C>                            <C>
COMMON STOCKS, CONTINUED:
Utilities--Telephone (1.5%):
        3,550   Ameritech Corp...............  $    197
        5,260   AT&T Corp....................       274
        4,500   GTE Corp.....................       186
                                               --------
                                                    657
                                               --------
 Total Common Stocks                             43,527
                                               --------
 Total Investments, at value                     43,527
                                               --------
    SHARES OR
    PRINCIPAL             SECURITY              MARKET
     AMOUNT              DESCRIPTION             VALUE
    ---------   -----------------------------  ---------
REPURCHASE AGREEMENTS (2.0%):
    $ 899,983   C. S. First Boston Corp.,
                  5.62%, 8/1/96
                  (Collateralized by 825 U.S.
                  Treasury Bonds, 8.75%,
                  11/15/08, market
                  value--$922)...............  $    900
                                               --------
 Total Repurchase Agreements                        900
                                               --------
 Total (Cost -- $40,510)(a)                    $ 44,427
                                               ========
</TABLE>
 
- ------------
 
Percentages indicated are based on net assets of $44,338.
 
(a) Represents cost for financial reporting purposes and differs from cost basis
    for federal income tax purposes by the amount of losses recognized for
    financial reporting in excess of federal income tax reporting of
    approximately $208 (amount in thousands). Cost for federal income tax
    purposes differs from value by net unrealized appreciation of securities as
    follows (amounts in thousands):
 
<TABLE>
                    <S>                                                                 <C>
                    Unrealized appreciation..........................................   $  5,175
                    Unrealized depreciation..........................................     (1,466)
                                                                                        --------
                    Net unrealized appreciation......................................   $  3,709
                                                                                         =======
</TABLE>
 
(b) Represents non-income producing securities.
 
ADR -- American Depository Receipt
PLC -- Public Limited Company
 
                       See notes to financial statements.
 
                                      LOGO
                                       57
<PAGE>   607
LOGO
                        NOTES TO FINANCIAL STATEMENTS
 
                                 JULY 31, 1996
 
1. ORGANIZATION:
 
    The HighMark Group (the "Group") was organized on March 10, 1987 and is
    registered under the Investment Company Act of 1940 as amended (the "1940
    Act"), as a diversified, open-end investment company established as a
    Massachusetts business trust.
 
    The Group is authorized to issue an unlimited number of shares which are
    units of beneficial interest without par value. The Group presently offers
    shares in the Diversified Obligations Fund, the U.S. Government Obligations
    Fund, the 100% U.S. Treasury Obligations Fund, the California Tax-Free Fund,
    the Bond Fund, the Income Equity Fund, the Balanced Fund, and the Growth
    Fund  (collectively, "the Funds" and individually, "a Fund"). Sales of
    shares may be made to customers of Union Bank of California, NA ("Union
    Bank of California") and to its affiliates, to all accounts of its
    correspondent banks, to institutional investors, and to the general public.
    MERUS-UCA Capital Management, ("MERUS-UCA"), a division of Union Bank of
    California, serves as investment adviser to the Group.
        
    The investment objective of the Diversified Obligations Fund, the U.S.
    Government Obligations Fund, and the 100% U.S. Treasury Obligations Fund is
    to seek current income with liquidity and stability of principal. The
    Diversified Obligations Fund invests in obligations issued or guaranteed by
    the U.S. Government, its agencies, or instrumentalities, and additionally
    invests in other high-quality money market instruments and other unrated
    instruments deemed to be of comparable high quality by the investment
    adviser pursuant to guidelines established by the Group's Board of Trustees.
    Some of the obligations and money market instruments in which the
    Diversified Obligations Fund invests may be subject to repurchase
    agreements. The U.S. Government Obligations Fund invests in obligations
    issued or guaranteed by the U.S. Treasury, and additionally invests in
    obligations issued or guaranteed by agencies or instrumentalities of the
    U.S. Government. Some of the obligations in which the U.S. Government
    Obligations Fund invests may be subject to repurchase agreements. The 100%
    U.S. Treasury Obligations Fund invests exclusively in direct U.S. Treasury
    obligations guaranteed as to timely payment of principal and interest by the
    full faith and credit of the U.S. Treasury. The California Tax-Free Fund's
    investment objective is to seek as high a level of current interest income
    free from federal income tax and California personal income tax as is
    consistent with the preservation of capital and relative stability of
    principal. The California Tax-Free Fund invests primarily in bonds and
    notes issued by or on behalf of states (primarily, in the case of the
    California Tax-Free Fund, the State of California), territories and
    possessions of the United States, and the District of Columbia and their
    respective authorities, agencies, instrumentalities and political
    sub-divisions ("Municipal Securities"). The investment objective of the
    Bond Fund is to seek current income through investments in long-term,
    fixed-income securities.
        
                                   Continued
 
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                                       58
<PAGE>   608
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                   NOTES TO FINANCIAL STATEMENTS, CONTINUED
 
                                 JULY 31, 1996
 
    The investment objective of the Income Equity Fund is to seek investments
    in equity securities that provide current income through the regular
    payment of dividends, with the goal that the Fund will have a high current
    yield and a low level of price volatility. Opportunities for long-term
    growth of asset value is a secondary consideration. The primary investment
    objective of the Balanced Fund is to seek total return. Conservation of
    capital is a secondary objective. The investment objective of the Growth
    Fund is to seek investments in equity securities that provide opportunity
    for long-term capital appreciation. The production of current income is an
    incidental objective. There can, however, be no assurance that any of the
    funds' investment objectives will be achieved.
        
    On December 1, 1990, the Diversified Obligations Fund, the U.S. Government
    Obligations Fund, the 100% U.S. Treasury Obligations Fund, and the
    California Tax-Free Fund (collectively, "the money market funds")
    commenced offering Class A Shares and designated existing shares as Class B
    Shares. As of June 20, 1994, Class A and Class B Shares were designated as
    "Investor" and "Fiduciary" Shares, respectively. On June 20, 1994, the Bond
    Fund, the Income Equity Fund, the Balanced Fund, and the Growth Fund
    (collectively, "the variable net asset value funds") commenced offering
    Investor Shares and designated existing shares as Fiduciary Shares.
    Investor and Fiduciary Shares represent interests in the same portfolio
    investments of a Fund and are identical in all respects except that
    Investor Shares bear the expense, if any, of the distribution fee under the
    Group's Distribution Plan (the "Distribution Plan"), which will cause the
    Investor Shares to have a higher expense ratio and to pay lower dividends
    than Fiduciary Shares. Investor Shares have certain exclusive voting rights
    with respect to the Distribution Plan.
        
    In addition, Investor Shares of the variable net asset value funds are
    subject to initial sales charges imposed at the time of purchase, in
    accordance with the Funds' prospectuses.
 
2. SIGNIFICANT ACCOUNTING POLICIES:
 
    The following is a summary of significant accounting policies followed by
    the Group in the preparation of its financial statements. The policies are
    in conformity with generally accepted accounting principles. The preparation
    of financial statements requires management to make estimates and
    assumptions which affect the reported amounts of assets and liabilities at
    the date of the financial statements and the reported amounts of income and
    expenses during the reporting period. Actual results could differ from those
    estimates.
 
                                   Continued
 
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                                       59
<PAGE>   609
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                   NOTES TO FINANCIAL STATEMENTS, CONTINUED
 
                                 JULY 31, 1996
 
   SECURITIES VALUATION:
 
    Investments in the money market funds are valued at either amortized cost,
    which approximates market value, or at original cost, which when combined
    with accrued interest, approximates market value. Under the amortized cost
    valuation method, discount or premium is amortized on a constant basis to
    the maturity of the security. In addition, the money market funds may not a)
    purchase any instrument with a remaining maturity greater than thirteen
    months unless such investment is subject to a demand feature, or b) maintain
    a dollar weighted average portfolio maturity which exceeds 90 days.
 
    Investments in common stocks and preferred stocks, corporate notes,
    commercial paper, and U.S. Government securities of the variable net asset
    value funds are valued at their market values determined on the basis of the
    mean of the latest available bid prices in the principal market (closing
    sales prices if the principal market is an exchange) in which such
    securities are normally traded. Investments in investment companies are
    valued at their net asset values as reported by such companies. Securities,
    including restricted securities, for which market quotations are not readily
    available, are valued at fair market value under the supervision of the
    Fund's Board of Trustees. The differences between cost and market values of
    investments held by the variable net asset value funds are reflected as
    either unrealized appreciation or depreciation.
 
   SECURITIES TRANSACTIONS AND RELATED INCOME:
 
    Securities transactions are accounted for on the date the security is
    purchased or sold (trade date). Interest income is recognized on the accrual
    basis and includes, where applicable for the money market funds, the pro
    rata amortization of premium. The Funds accrete discounts of securities on
    the same basis for both financial reporting and federal income tax purposes,
    with the applicable portion of market discount recognized as ordinary income
    upon disposition or maturity. Dividend income is recorded on the ex-dividend
    date. Gains or losses realized on sales of securities are determined by
    comparing the identified cost of the security lot sold with the net sales
    proceeds.
 
   REPURCHASE AGREEMENTS:
 
    The Funds may enter into repurchase agreements with financial institutions,
    such as banks and broker-dealers, which MERUS-UCA deems creditworthy under
    guidelines approved by the Group's Board of Trustees, subject to the
    seller's agreement to repurchase such securities at a mutually agreed-upon
    date and price. The repurchase price generally equals the price paid by a
    Fund plus interest negotiated on the basis of current short-term rates,
    which may be more or less than the rate on the underlying portfolio
    securities. The seller, under a repurchase agreement, is required to pledge
    securities as collateral pursuant to the agreement at not less than 102% of
    the repurchase price (including accrued interest). Securities subject to
    repurchase agreements are held by the Funds' custodian in
 
                                   Continued
 
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                                       60
<PAGE>   610
LOGO
                   NOTES TO FINANCIAL STATEMENTS, CONTINUED
 
                                 JULY 31, 1996
 
    the Federal Reserve/Treasury book-entry system. Repurchase agreements are
    considered to be loans by a Fund under the 1940 Act.
 
   DISTRIBUTIONS TO SHAREHOLDERS:
 
    Distributions from net investment income are declared daily and paid monthly
    for the money market funds. Distributions from net investment income are
    declared and paid monthly for the variable net asset value funds.
    Distributable net realized capital gains, if any, are declared and
    distributed at least annually for each of the Funds.
 
    Distributions from net investment income and from net realized capital gains
    are determined in accordance with income tax regulations which may differ
    from generally accepted accounting principles. These differences are
    primarily due to differing treatments for expiring capital loss
    carryforwards and deferrals of certain losses for income tax purposes.
 
   FEDERAL INCOME TAXES:
 
    It is the policy of each of the Funds to continue to qualify as a regulated
    investment company by complying with the provisions available to certain
    investment companies, as defined in applicable sections of the Internal
    Revenue Code, and to make distributions of net investment income and net
    realized capital gains sufficient to relieve it from all, or substantially
    all, federal income taxes. Accordingly, no provision for federal income tax
    is required.
 
   OTHER:
 
    Expenses that are directly related to one of the Funds are charged directly
    to that Fund and are allocated to each class of shares based on the relative
    net assets of each class. Other operating expenses of the Group are prorated
    to the Funds on the basis of relative net assets.
 
3. PURCHASES AND SALES OF SECURITIES:
 
    Purchases and sales of securities (excluding short-term securities) for the
    year ended July 31, 1996 are as follows:
 
<TABLE>
<CAPTION>
                                                                           PURCHASES           SALES
                                                                          ------------      ------------
         <S>                                                              <C>               <C>
         Bond Fund.....................................................   $ 12,838,463      $ 12,390,087
         Income Equity Fund............................................   $120,339,920      $104,047,894
         Balanced Fund.................................................   $ 11,733,334      $  4,060,963
         Growth Fund...................................................   $ 42,228,828      $ 27,423,180
</TABLE>
 
                                   Continued
 
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                                       61
<PAGE>   611
LOGO
                   NOTES TO FINANCIAL STATEMENTS, CONTINUED
 
                                 JULY 31, 1996
 
4. CAPITAL SHARE TRANSACTIONS:
 
    Transactions in capital shares for the Group for the years ended July 31,
    1996 and 1995 were as follows:
 
<TABLE>
<CAPTION>
                                                                                               U.S. GOVERNMENT OBLIGATIONS
                                                             DIVERSIFIED OBLIGATIONS FUND                  FUND
                                                            ------------------------------    ------------------------------
                                                             YEAR ENDED       YEAR ENDED       YEAR ENDED       YEAR ENDED
                                                            JULY 31, 1996    JULY 31, 1995    JULY 31, 1996    JULY 31, 1995
                                                            -------------    -------------    -------------    -------------
                                                                                  Amounts in Thousands
<S>                                                         <C>              <C>              <C>              <C>
CAPITAL TRANSACTIONS:
  INVESTOR SHARES:
  Proceeds from shares issued...............................  $ 1,099,638     $   646,263      $   712,337      $   394,176
  Dividends reinvested......................................        7,260           4,895            3,476            1,948
  Shares redeemed...........................................   (1,049,143)       (598,685)        (688,578)        (371,715)
                                                            -------------    -------------    -------------    -------------
  Change in net assets from Investor Share transactions.....  $    57,755     $    52,473      $    27,235      $    24,409
                                                            ============     ============     ============     ============
  FIDUCIARY SHARES:
  Proceeds from shares issued...............................  $   843,405     $   915,980      $ 1,221,391      $ 1,366,450
  Dividends reinvested......................................           66              20               11                2
  Shares redeemed...........................................     (869,182)       (874,436)      (1,229,676)      (1,368,823)
                                                            -------------    -------------    -------------    -------------
  Change in net assets from Fiduciary Share transactions....  $   (25,711)    $    41,564      $    (8,274)     $    (2,371)
                                                            ============     ============     ============     ============
SHARE TRANSACTIONS:
  INVESTOR SHARES:
  Issued....................................................    1,099,638         646,263          712,337          394,176
  Reinvested................................................        7,260           4,895            3,476            1,948
  Redeemed..................................................   (1,049,143)       (598,685)        (688,578)        (371,715)
                                                            -------------    -------------    -------------    -------------
  Change in Investor Shares.................................       57,755          52,473           27,235           24,409
                                                            ============     ============     ============     ============
  FIDUCIARY SHARES:
  Issued....................................................      843,405         915,980        1,221,391        1,366,450
  Reinvested................................................           66              20               11                2
  Redeemed..................................................     (869,182)       (874,436)      (1,229,676)      (1,368,823)
                                                            -------------    -------------    -------------    -------------
  Change in Fiduciary Shares................................      (25,711)         41,564           (8,274)          (2,371)
                                                            ============     ============     ============     ============
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       62
<PAGE>   612
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                   NOTES TO FINANCIAL STATEMENTS, CONTINUED
 
                                 JULY 31, 1996
 
<TABLE>
<CAPTION>
                                     100% U.S. TREASURY                    CALIFORNIA
                                      OBLIGATIONS FUND                   TAX-FREE FUND          
                               ------------------------------    ------------------------------ 
                                YEAR ENDED       YEAR ENDED       YEAR ENDED       YEAR ENDED   
                               JULY 31, 1996    JULY 31, 1995    JULY 31, 1996    JULY 31, 1995 
                               -------------    -------------    -------------    ------------- 
                                                                      Amounts in Thousands      
<S>                            <C>              <C>              <C>              <C>           
CAPITAL TRANSACTIONS:                                                                           
  INVESTOR SHARES:                                                                              
  Proceeds from shares                                                                          
    issued.....................   $ 463,343       $ 310,873        $ 120,369        $  99,160   
  Dividends reinvested.........       4,526           2,090            1,419            1,027   
  Shares redeemed..............    (455,887)       (263,475)        (108,705)         (91,159)  
                               -------------    -------------    -------------    ------------- 
  Change in net assets from                                                                     
    Investor Share                                                                              
    transactions...............   $  11,982       $  49,488        $  13,083        $   9,028   
                               ============     ============     ============     ============  
  FIDUCIARY SHARES:                                                                             
  Proceeds from shares                                                                          
    issued.....................   $ 541,337       $ 425,795        $ 223,524        $ 255,654   
  Dividends reinvested.........          45              16                6                8   
  Shares redeemed..............    (558,614)       (395,970)        (230,920)        (264,895)  
                               -------------    -------------    -------------    ------------- 
  Change in net assets from                                                                     
    Fiduciary Share                                                                             
    transactions...............   $ (17,232)      $  29,841        $  (7,390)       $  (9,233)  
                               ============     ============     ============     ============  
SHARE TRANSACTIONS:                                                                             
  INVESTOR SHARES:                                                                              
  Issued.......................     463,343         310,873          120,369           99,160   
  Reinvested...................       4,526           2,090            1,419            1,027   
  Redeemed.....................    (455,887)       (263,475)        (108,705)         (91,159)  
                               -------------    -------------    -------------    ------------- 
  Change in Investor Shares....      11,982          49,488           13,083            9,028   
                               ============     ============     ============     ============  
  FIDUCIARY SHARES:                                                                             
  Issued.......................     541,337         425,795          223,524          255,654   
  Reinvested...................          45              16                6                8   
  Redeemed.....................    (558,614)       (395,970)        (230,920)        (264,895)  
                               -------------    -------------    -------------    ------------- 
  Change in Fiduciary Shares...     (17,232)         29,841           (7,390)          (9,233)  
                               ============     ============     ============     ============  
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       63
<PAGE>   613
LOGO
                   NOTES TO FINANCIAL STATEMENTS, CONTINUED
 
                                 JULY 31, 1996
 
<TABLE>
<CAPTION>
                                         BOND FUND                     INCOME EQUITY FUND
                               ------------------------------    ------------------------------
                                YEAR ENDED       YEAR ENDED       YEAR ENDED       YEAR ENDED
                               JULY 31, 1996    JULY 31, 1995    JULY 31, 1996    JULY 31, 1995
                               -------------    -------------    -------------    -------------
                                                               
<S>                            <C>              <C>              <C>              <C>
CAPITAL TRANSACTIONS:                                          
  INVESTOR SHARES:                                             
  Proceeds from shares                                         
    issued.....................   $     754       $     626        $  10,342        $   4,131
  Dividends reinvested.........          60              14              501               52
  Shares redeemed..............        (177)           (113)          (5,008)            (506)
                               -------------    -------------    -------------    -------------
  Change in net assets from                                    
    Investor Share                                             
    transactions...............   $     637       $     527        $   5,835        $   3,677
                               ============     ============     ============     ============
  FIDUCIARY SHARES:                                            
  Proceeds from shares                                         
    issued.....................   $  14,876       $  10,767        $  52,940        $  31,913
  Dividends reinvested.........       2,983           3,111           16,994           13,482
  Shares redeemed..............     (16,414)        (19,821)         (49,911)         (56,293)
                               -------------    -------------    -------------    -------------
  Change in net assets from                                    
    Fiduciary Share                                            
    transactions...............   $   1,445       $  (5,943)       $  20,023        $ (10,898)
                               ============     ============     ============     ============
SHARE TRANSACTIONS:                                            
  INVESTOR SHARES:                                             
  Issued.......................          71              63              721              331
  Reinvested...................           6               1               35                5
  Redeemed.....................         (17)            (11)            (344)             (40)
                               -------------    -------------    -------------    -------------
  Change in Investor Shares....          60              53              412              296
                               ============     ============     ============     ============
  FIDUCIARY SHARES:                                            
  Issued.......................       1,421           1,074            3,719            2,625
  Reinvested...................         284             311            1,200            1,154
  Redeemed.....................      (1,563)         (1,974)          (3,529)          (4,658)
                               -------------    -------------    -------------    -------------
  Change in Fiduciary Shares...         142            (589)           1,390             (879)
                               ============     ============     ============     ============
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       64
<PAGE>   614
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                   NOTES TO FINANCIAL STATEMENTS, CONTINUED
 
                                 JULY 31, 1996
 
<TABLE>
<CAPTION>
                                       BALANCED FUND                      GROWTH FUND           
                               ------------------------------    ------------------------------ 
                                YEAR ENDED       YEAR ENDED       YEAR ENDED       YEAR ENDED   
                               JULY 31, 1996    JULY 31, 1995    JULY 31, 1996    JULY 31, 1995 
                               -------------    -------------    -------------    ------------- 
                                                                      Amounts in Thousands      
<S>                            <C>              <C>              <C>              <C>           
CAPITAL TRANSACTIONS:                                                                           
  INVESTOR SHARES:                                                                              
  Proceeds from shares                                                                          
    issued.....................   $     526       $     480        $   1,796        $   1,230   
  Dividends reinvested.........          22               2              107                5   
  Shares redeemed..............        (358)            (20)            (370)            (144)  
                               -------------    -------------    -------------    ------------- 
  Change in net assets from                                                                     
    Investor Share                                                                              
    transactions...............   $     190       $     462        $   1,533        $   1,091   
                               ============     ============     ============     ============  
  FIDUCIARY SHARES:                                                                             
  Proceeds from shares                                                                          
    issued.....................   $  15,314       $   9,876        $  17,443        $   8,497   
  Dividends reinvested.........       1,150             984            1,858              498   
  Shares redeemed..............      (9,046)         (9,570)          (4,577)          (3,450)  
                               -------------    -------------    -------------    ------------- 
  Change in net assets from                                                                     
    Fiduciary Share                                                                             
    transactions...............   $   7,418       $   1,290        $  14,724        $   5,545   
                               ============     ============     ============     ============  
SHARE TRANSACTIONS:                                                                             
  INVESTOR SHARES:                                                                              
  Issued.......................          46              45              143              115   
  Reinvested...................           2              --                9                1   
  Redeemed.....................         (31)             (2)             (29)             (13)  
                               -------------    -------------    -------------    ------------- 
  Change in Investor Shares....          17              43              123              103   
                               ============     ============     ============     ============  
  FIDUCIARY SHARES:                                                                             
  Issued.......................       1,321             976            1,397              836   
  Reinvested...................         100              99              154               50   
  Redeemed.....................        (789)           (964)            (365)            (334)  
                               -------------    -------------    -------------    ------------- 
  Change in Fiduciary Shares...         632             111            1,186              552   
                               ============     ============     ============     ============  
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       65
<PAGE>   615
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                   NOTES TO FINANCIAL STATEMENTS, CONTINUED
 
                                 JULY 31, 1996
 
5. RELATED PARTY TRANSACTIONS:
 
    Investment advisory services are provided to the Group by MERUS-UCA. Under
    the terms of the investment advisory agreement, Union Bank of California, of
    which MERUS-UCA is a division, is entitled to receive fees based on a
    percentage of the average net assets of each of the Funds. Union Bank of
    California also serves as custodian, sub-transfer agent and
    sub-administrator for the Group.
 
    BISYS Fund Services Limited Partnership d/b/a BISYS Fund Services ("BISYS"),
    an Ohio Limited Partnership, and BISYS Fund Services Ohio, Inc. ("BISYS
    Ohio") are subsidiaries of The BISYS Group, Inc.
 
    BISYS, with whom certain officers and trustees of the Group are affiliated,
    serves the Group as administrator. Such officers and trustees are paid no
    fees directly by the Funds for serving as officers and trustees of the
    Group. Under the terms of the administration agreement, BISYS' fees are
    computed daily as a percentage of the average net assets of the Funds. BISYS
    also serves as the Group's distributor. As distributor, BISYS is entitled to
    receive fees from the Funds for providing distribution services. For the
    year ended July 31, 1996, BISYS received $212,765 for commissions earned on
    sales of shares of the Group's variable net asset value funds, of which
    $23,664 was reallowed to affiliated parties. BISYS Ohio, serves the Group as
    transfer agent and mutual fund accountant. Transfer agent fees are computed
    on a sliding scale, based upon the number of shareholders.
 
    The Group has adopted a Distribution Plan pursuant to Rule 12b-1 under the
    1940 Act pursuant to which each Fund may pay the Distributor as compensation
    for its services in connection with the Distribution Plan a distribution
    fee, computed daily and paid monthly, at a maximum annual rate of
    twenty-five one-hundredths of one percent (0.25%) of the average daily net
    assets attributable to the Funds' Investor Shares. A Fund's Fiduciary Shares
    are not subject to the Distribution Plan or a distribution fee. The
    Distributor has agreed to voluntarily reduce payments to be received
    pursuant to the Distribution Plan with respect to a money market fund to the
    extent necessary to ensure that such payments do not exceed the income
    attributable to such Fund's shares on any day.
 
    The Group has also adopted a Shareholder Services Plan permitting payment of
    compensation to financial institutions that agree to provide certain
    administrative support services for their customers who are Fund
    shareholders. Each Fund has entered into a specific arrangement with BISYS
    for the provision of such services and reimburses BISYS for its cost of
    providing these services, subject to a maximum annual rate of twenty-five
    one-hundredths of one percent (0.25%) of each Fund's average daily net
    assets.
 
    Fees may be voluntarily reduced or reimbursed to assist the Funds in
    maintaining competitive expense ratios. Such fees are permanently waived.
 
                                   Continued
 
                                      LOGO
                                       66
<PAGE>   616
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                   NOTES TO FINANCIAL STATEMENTS, CONTINUED
 
                                 JULY 31, 1996
 
    Information regarding these transactions is as follows for the year ended
    July 31, 1996: (amounts in thousands)
 
<TABLE>
<CAPTION>
                                              DIVERSIFIED              U.S. GOVERNMENT          100% U.S. TREASURY
                                           OBLIGATIONS FUND           OBLIGATIONS FUND           OBLIGATIONS FUND
                                        -----------------------    -----------------------    -----------------------
<S>                                     <C>                        <C>                        <C>
INVESTMENT ADVISORY FEES:
Annual fee (percentage of
  average net assets)................    0.40% 1st $500 million     0.40% 1st $500 million     0.40% 1st $500 million
                                        0.35% next $500 million    0.35% next $500 million    0.35% next $500 million
                                                0.30% remaining            0.30% remaining            0.30% remaining
ADMINISTRATION FEES:
Annual fee (percentage of
  average net assets)................             0.20%                      0.20%                      0.20%
DISTRIBUTION FEES (INVESTOR SHARES):
Annual fee before voluntary
  fee reductions (percentage of
  average net assets)................             0.25%                      0.25%                      0.25%
Voluntary fee reductions.............            $ 395                      $ 179                      $ 267
SHAREHOLDER SERVICES FEES:
Annual fee before voluntary
  fee reductions (percentage of
  average net assets)................             0.25%                      0.25%                      0.25%
Voluntary fee reductions.............            $ 932                      $ 560                      $ 711
CUSTODIAN FEES: (percentage of
  average net assets)                    0.02% (minimum $2,500)     0.02% (minimum $2,500)     0.02% (minimum $2,500)
ACCOUNTING FEES: (percentage of
  average net assets)                   0.03% (minimum $40,000)    0.03% (minimum $40,000)    0.03% (minimum $40,000)
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       67
<PAGE>   617
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                   NOTES TO FINANCIAL STATEMENTS, CONTINUED
 
                                 JULY 31, 1996
 
<TABLE>
<CAPTION>
                                                                        CALIFORNIA        
                                                                       TAX-FREE FUND      
                                                                  ----------------------- 
<S>                                                               <C>                     
INVESTMENT ADVISORY FEES:                                                                 
Annual fee before voluntary fee reductions                                                
  (percentage of average net assets)...........................    0.40% 1st $500 million 
                                                                  0.35% next $500 million 
                                                                          0.30% remaining 
Voluntary fee reductions.......................................            $ 266          
ADMINISTRATION FEES:                                                                      
Annual fee (percentage of average net assets)..................             0.20%         
Voluntary fee reductions.......................................            $  77          
DISTRIBUTION FEES (INVESTOR SHARES):                                                      
Annual fee before voluntary fee reductions                                                
  (percentage of average net assets)...........................             0.25%         
Voluntary fee reductions.......................................            $ 122          
SHAREHOLDER SERVICES FEES:                                                                
Annual fee before voluntary fee reductions                                                
  (percentage of average net assets)...........................             0.25%         
Voluntary fee reductions.......................................            $ 359          
CUSTODIAN FEES: (percentage of average net assets)                 0.02% (minimum $2,500) 
ACCOUNTING FEES: (percentage of average net assets)               0.03% (minimum $40,000) 
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       68
<PAGE>   618
LOGO
                   NOTES TO FINANCIAL STATEMENTS, CONTINUED
 
                                 JULY 31, 1996
 
<TABLE>
<CAPTION>
                                               BOND FUND             INCOME EQUITY FUND
                                        -----------------------    -----------------------
<S>                                     <C>                        <C>
INVESTMENT ADVISORY FEES:                                        
Annual fee before voluntary fee                                  
  reductions (percentage of                                      
  average net assets)................     1.00% 1st $40 million      1.00% 1st $40 million
                                                0.60% remaining            0.60% remaining
Voluntary fee reductions.............            $ 257                      $  33
ADMINISTRATION FEES:                                             
Annual fee (percentage of                                        
  average net assets)................             0.20%                      0.20%
Voluntary fee reductions.............            $  43                         --
DISTRIBUTION FEES (INVESTOR SHARES):                             
Annual fee before voluntary fee                                  
  reductions (percentage of                                      
  average net assets)................             0.25%                      0.25%
Voluntary fee reductions.............            $   2                      $  20
SHAREHOLDER SERVICES FEES:                                       
Annual fee before voluntary fee                                  
  reductions (percentage of                                      
  average net assets)................             0.25%                      0.25%
Voluntary fee reductions.............            $ 143                      $ 613
CUSTODIAN FEES: (percentage of                                   
  average net assets)                    0.02% (minimum $2,500)     0.02% (minimum $2,500)
Voluntary fee reductions                                         
ACCOUNTING FEES: (percentage of                                  
  average net assets)                   0.03% (minimum $40,000)    0.03% (minimum $40,000)
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       69
<PAGE>   619
LOGO
                   NOTES TO FINANCIAL STATEMENTS, CONTINUED
 
                                 JULY 31, 1996
 
<TABLE>
<CAPTION>
                                             BALANCED FUND               GROWTH FUND        
                                        -----------------------    -----------------------  
<S>                                     <C>                        <C>                      
INVESTMENT ADVISORY FEES:                                                                   
Annual fee before voluntary fee                                                             
  reductions (percentage of                                                                 
  average net assets)................     1.00% 1st $40 million      1.00% 1st $40 million  
                                                0.60% remaining            0.60% remaining  
Voluntary fee reductions.............            $ 161                      $ 182           
ADMINISTRATION FEES:                                                                        
Annual fee (percentage of                                                                   
  average net assets)................             0.20%                      0.20%          
Voluntary fee reductions.............               --                         --           
DISTRIBUTION FEES (INVESTOR SHARES):                                                        
Annual fee before voluntary fee                                                             
  reductions (percentage of                                                                 
  average net assets)................             0.25%                      0.25%          
Voluntary fee reductions.............            $   2                      $   5           
SHAREHOLDER SERVICES FEES:                                                                  
Annual fee before voluntary fee                                                             
  reductions (percentage of                                                                 
  average net assets)................             0.25%                      0.25%          
Voluntary fee reductions.............            $  82                      $  87           
CUSTODIAN FEES: (percentage of                                                              
  average net assets)                    0.02% (minimum $2,500)     0.02% (minimum $2,500)  
Voluntary fee reductions.............            $  29                      $  40           
ACCOUNTING FEES: (percentage of                                                             
  average net assets)                   0.03% (minimum $40,000)    0.03% (minimum $40,000)  
Voluntary fee reductions.............            $  19                      $  19           
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       70
<PAGE>   620
LOGO
                   NOTES TO FINANCIAL STATEMENTS, CONTINUED
 
                                 JULY 31, 1996
 
6. CONCENTRATION OF CREDIT RISK:
 
    The California Tax-Free Fund invests substantially all of its assets in a
    diversified portfolio of tax-exempt debt obligations primarily consisting of
    securities issued by the State of California, its municipalities, counties,
    and other taxing districts. The issuers' abilities to meet their obligations
    may be affected by domestic and foreign or California economic, regional and
    political developments.
 
    At July 31, 1996, The California Tax-Free Fund had the following
    concentrations by industry sector (as a percentage of total investments):
 
<TABLE>
<CAPTION>
                                          TAX-EXEMPT                                  CALIFORNIA
                                        INDUSTRY CLASS                               TAX-FREE FUND
             ---------------------------------------------------------------------   -------------
             <S>                                                                     <C>
             Utilities -- Electric................................................        23.2%
             Housing..............................................................        22.1%
             Hospitals............................................................        20.7%
             Pollution Control....................................................        10.6%
             Governments..........................................................         8.2%
             Money Markets........................................................         7.8%
             Utilities -- Water & Sewer...........................................         4.2%
             Transportation & Shipping............................................         3.2%
                                                                                        ------
                                                                                         100.0%
</TABLE>
 
7. ELIGIBLE DISTRIBUTIONS (UNAUDITED):
 
    The Group designates the following eligible distributions for the dividends
    received deduction for corporations for the Fund's taxable year ended July
    31, 1996:
 
<TABLE>
<CAPTION>
                                                      INCOME        BALANCED     GROWTH  
                                                    EQUITY FUND       FUND        FUND   
                                                    -----------     --------     ------  
             <S>                                    <C>             <C>          <C>     
             Dividend Income (in thousands)......     $ 9.943        $  549      $ 607   
             Dividend Income Per Share...........     $ 0.402        $0.142      $0.107  
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       71
<PAGE>   621
LOGO
                   NOTES TO FINANCIAL STATEMENTS, CONTINUED
 
                                 JULY 31, 1996
 
8. EXEMPT-INTEREST INCOME DESIGNATION (UNAUDITED):
 
    The Group designates the following exempt-interest dividends for the Fund's
    taxable year ended July 31, 1996.
 
<TABLE>
<CAPTION>
                                                                     CALIFORNIA     
                                                                    TAX-FREE FUND   
                                                                    -------------   
             <S>                                                    <C>             
             Exempt-interest dividends...........................      $ 5.255      
             Exempt-interest dividends per share.................        0.028      
</TABLE>
 
    The following information indicates by state the percentage of income earned
    by the California Tax-Free Fund for the year ended July 31, 1996:
 
<TABLE>
<CAPTION>
                                                                     CALIFORNIA
                                                                    TAX-FREE FUND  
                                                                    -------------  
             <S>                                                    <C>            
             Alaska..............................................                  
             Arizona.............................................                  
             California..........................................       100.0%     
             Colorado............................................                  
             Florida.............................................                  
             Hawaii..............................................                  
             Illinois............................................                  
             Indiana.............................................                  
             Kentucky............................................                  
             Louisiana...........................................                  
             Michigan............................................                  
             Minnesota...........................................                  
             Missouri............................................                  
             Nevada..............................................                  
             New Mexico..........................................                  
             New York............................................                  
             Oregon..............................................                  
             Pennsylvania........................................                  
             Rhode Island........................................                  
             Texas...............................................                  
             Utah................................................                  
             Virginia............................................                  
             Wyoming.............................................                  
             Other Territories...................................                  
                                                                       ------      
                                                                        100.0%     
                                                                    ============== 
</TABLE>
 
                                   Continued
 
                                      LOGO
                                       72
<PAGE>   622
LOGO
                   NOTES TO FINANCIAL STATEMENTS, CONTINUED
 
                                 JULY 31, 1996
 
    For the year ended July 31, 1996, 16.9% of the income earned by the
    California Tax-Free Fund may be subject to the alternative minimum tax.
 
    For California residents, 100.0% of the income earned by the California
    Tax-Free Fund for the year ended July 31, 1996 is designated as tax-exempt
    income.
 
    The following information indicates by type the percentage of income earned
    by the 100% U.S. Treasury Obligations Fund for the year ended July 31, 1996:
 
<TABLE>
<CAPTION>
                                                                                100% U.S. TREASURY
                                           TYPE                                  OBLIGATIONS FUND
             ----------------------------------------------------------------   ------------------
             <S>                                                                <C>
             Federal obligations (such as U.S. Treasury bills, notes,
               bonds)........................................................          100.0%
                                                                                ===================
</TABLE>
 
    For California residents, the 100% U.S. Treasury Obligations Fund met the
    quarterly diversification tests for each fiscal quarter ended during the
    year ended July 31, 1996. In addition, for California residents, 100% of the
    income earned by the 100% U.S. Treasury Obligations Fund for the year ended
    July 31, 1996 is designated as tax-exempt income.
 
    Please consult your tax advisor for the proper treatment of the information
    reflected in Notes 7 and 8.
 
9. FEDERAL INCOME TAXES:
 
    For federal income tax purposes, the following funds have capital loss
    carryforwards as of July 31, 1996, which are available to offset future
    capital gains, if any:
 
<TABLE>
<CAPTION>
                                                                               AMOUNT        EXPIRES
                                                                             ----------      -------
             <S>                                                             <C>             <C>
             Diversified Obligations Fund.................................   $  341,422        2001
                                                                                 29,246        2002
             U.S. Government Obligations Fund.............................      174,662        2001
             100% U.S. Treasury Obligations Fund..........................        6,637        2004
             California Tax-Free Fund.....................................       24,741        2002
                                                                                 22,777        2003
                                                                                 13,234        2003
             Bond Fund....................................................    2,766,351        2003
                                                                                 54,397        2004
</TABLE>
 
                                      LOGO
                                       73
<PAGE>   623
LOGO
                         DIVERSIFIED OBLIGATIONS FUND
 
                              FINANCIAL HIGHLIGHTS
 
<TABLE>
<CAPTION>
                                                               YEAR ENDED JULY 31,
                 ----------------------------------------------------------------------------------------------------------------
                         1996                   1995                   1994                   1993                   1992
                 --------------------   --------------------   --------------------   --------------------   --------------------
                 INVESTOR   FIDUCIARY   INVESTOR   FIDUCIARY   INVESTOR   FIDUCIARY   INVESTOR   FIDUCIARY   INVESTOR   FIDUCIARY
                 --------   ---------   --------   ---------   --------   ---------   --------   ---------   --------   ---------
<S>              <C>        <C>         <C>        <C>         <C>        <C>         <C>        <C>         <C>        <C>
NET ASSET
 VALUE,
 BEGINNING OF
 PERIOD.......   $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00
                 --------   ---------   --------   ---------   --------   ---------   --------   ---------   --------   ---------
INVESTMENT
 ACTIVITIES
 Net
   investment
   income.....      0.049      0.049       0.049      0.049       0.028      0.028       0.027      0.027       0.043      0.043
                 --------   ---------   --------   ---------   --------   ---------   --------   ---------   --------   ---------
DISTRIBUTIONS
 From net
   investment
   income.....     (0.049)    (0.049 )    (0.049)    (0.049 )    (0.028)    (0.028 )    (0.027)    (0.027 )    (0.043)    (0.043 )
                 --------   ---------   --------   ---------   --------   ---------   --------   ---------   --------   ---------
NET ASSET
 VALUE, END OF
 PERIOD.......   $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00
                 ========== =========== ========== =========== ========== =========== ========== =========== ========== ===========
Total
 Return.......       5.01%      5.01%       4.99%      4.99%       2.88%      2.88%       2.75%      2.75%       4.41%      4.41%
RATIOS/SUPPLEMENTARY DATA:
 Net Assets at
   end of
   period
   (000)......   $185,952   $244,775    $128,191   $270,476    $ 75,725   $228,934    $ 77,589   $254,034    $ 17,600   $337,485
 Ratio of
   expenses to
   average net
   assets.....       0.75%      0.75%       0.74%      0.74%       0.74%      0.74%       0.72%      0.72%       0.72%      0.72%
 Ratio of net
   investment
   income to
   average net
   assets.....       4.89%      4.91%       4.92%      4.88%       2.83%      2.83%       2.72%      2.72%       4.34%      4.34%
 Ratio of
   expenses to
   average net
   assets*....       1.23%      0.99%       1.23%      0.98%       1.14%      0.89%       0.79%      0.73%       0.97%      0.72%
 Ratio of net
   investment
   income to
   average net
   assets*....       4.41%      4.67%       4.43%      4.64%       2.42%      2.67%       2.65%      2.71%       4.09%      4.34%
</TABLE>
 
- ---------------
 
*During the period, certain fees were voluntarily reduced. If such voluntary fee
 reductions had not occurred, the ratios would have been as indicated.
 
                       See notes to financial statements.
 
                                      LOGO
                                       74
<PAGE>   624
LOGO
                       U.S. GOVERNMENT OBLIGATIONS FUND
 
                              FINANCIAL HIGHLIGHTS
 
<TABLE>
<CAPTION>
                                                               YEAR ENDED JULY 31,
                 ----------------------------------------------------------------------------------------------------------------
                         1996                   1995                   1994                   1993                   1992
                 --------------------   --------------------   --------------------   --------------------   --------------------
                 INVESTOR   FIDUCIARY   INVESTOR   FIDUCIARY   INVESTOR   FIDUCIARY   INVESTOR   FIDUCIARY   INVESTOR   FIDUCIARY
                 --------   ---------   --------   ---------   --------   ---------   --------   ---------   --------   ---------
<S>              <C>        <C>         <C>        <C>         <C>        <C>         <C>        <C>         <C>        <C>
NET ASSET
 VALUE,
 BEGINNING OF
 PERIOD.......   $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00
                 --------   ---------   --------   ---------   --------   ---------   --------   ---------   --------   ---------
INVESTMENT
 ACTIVITIES
 Net
   investment
   income.....      0.048      0.048       0.048      0.048       0.027      0.027       0.027      0.027       0.042      0.042
                 --------   ---------   --------   ---------   --------   ---------   --------   ---------   --------   ---------
DISTRIBUTIONS
 From net
   investment
   income.....     (0.048)    (0.048 )    (0.048)    (0.048 )    (0.027)    (0.027 )    (0.027)    (0.027 )    (0.042)    (0.042 )
                 --------   ---------   --------   ---------   --------   ---------   --------   ---------   --------   ---------
NET ASSET
 VALUE, END OF
 PERIOD.......   $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00
                 ========== =========== ========== =========== ========== =========== ========== =========== ========== ===========
Total
 Return.......       4.86%      4.88%       4.86%      4.87%       2.74%      2.74%       2.72%      2.72%       4.25%      4.25%
RATIOS/SUPPLEMENTARY DATA:
 Net Assets at
   end of
   period
   (000)......   $ 75,714   $151,483    $ 48,474   $159,747    $ 24,055   $162,094    $ 37,332   $166,182    $ 12,527   $ 94,252
 Ratio of
   expenses to
   average net
   assets.....       0.79%      0.77%       0.78%      0.78%       0.77%      0.78%       0.71%      0.71%       0.73%      0.73%
 Ratio of net
   investment
   income to
   average net
   assets.....       4.77%      4.76%       4.82%      4.76%       2.63%      2.70%       2.67%      2.67%       4.15%      4.15%
 Ratio of
   expenses to
   average net
   assets*....       1.26%      1.00%       1.27%      1.02%       1.17%      0.94%       0.79%      0.74%       0.99%      0.74%
 Ratio of net
   investment
   income to
   average net
   assets*....       4.30%      4.53%       4.33%      4.52%       2.23%      2.54%       2.59%      2.65%       3.89%      4.14%
</TABLE>
 
- ---------------
 
*During the period, certain fees were voluntarily reduced. If such voluntary fee
 reductions had not occurred, the ratios would have been as indicated.
 
                       See notes to financial statements.
 
                                      LOGO
                                       75
<PAGE>   625
LOGO
                     100% U.S. TREASURY OBLIGATIONS FUND
 
                              FINANCIAL HIGHLIGHTS
 
<TABLE>
<CAPTION>
                                                               YEAR ENDED JULY 31,
                 ----------------------------------------------------------------------------------------------------------------
                         1996                   1995                   1994                   1993                   1992
                 --------------------   --------------------   --------------------   --------------------   --------------------
                 INVESTOR   FIDUCIARY   INVESTOR   FIDUCIARY   INVESTOR   FIDUCIARY   INVESTOR   FIDUCIARY   INVESTOR   FIDUCIARY
                 --------   ---------   --------   ---------   --------   ---------   --------   ---------   --------   ---------
<S>              <C>        <C>         <C>        <C>         <C>        <C>         <C>        <C>         <C>        <C>
NET ASSET
 VALUE,
 BEGINNING OF
 PERIOD.......   $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00
                 --------   ---------   --------   ---------   --------   ---------   --------   ---------   --------   ---------
INVESTMENT
 ACTIVITIES
 Net
   investment
   income.....      0.046      0.046       0.046      0.046       0.026      0.026       0.026      0.026       0.040      0.040
 Net realized
   and
   unrealized
   gains on
investments...         --         --          --         --          --         --          --         --       0.001      0.001
                 --------   ---------   --------   ---------   --------   ---------   --------   ---------   --------   ---------
   Total from
    Investment
  Activities..      0.046      0.046       0.046      0.046       0.026      0.026       0.026      0.026       0.041      0.041
                 --------   ---------   --------   ---------   --------   ---------   --------   ---------   --------   ---------
DISTRIBUTIONS
 From net
   investment
   income.....     (0.046)    (0.046 )    (0.046)    (0.046 )    (0.026)    (0.026 )    (0.026)    (0.026 )    (0.040)    (0.040 )
 From net
   investment
   income.....         --         --          --         --          --         --          --         --      (0.001)    (0.001 )
                 --------   ---------   --------   ---------   --------   ---------   --------   ---------   --------   ---------
   Total
   Distributions...   (0.046)   (0.046 )   (0.046)   (0.046 )    (0.026)    (0.026 )    (0.026)    (0.026 )    (0.041)    (0.041 )
                 ========== =========== ========== =========== ========== =========== ========== =========== ========== ===========
NET ASSET
 VALUE, END OF
 PERIOD.......   $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00
                 ========== =========== ========== =========== ========== =========== ========== =========== ========== ===========
Total
 Return.......       4.74%      4.74%       4.69%      4.69%       2.68%      2.68%       2.64%      2.64%       4.18%      4.18%
RATIOS/SUPPLEMENTARY
 DATA:
 Net Assets at
   end of
   period
   (000)......   $100,623   $173,340    $ 88,660   $190,604    $ 39,157   $160,721    $ 32,629   $191,946    $ 11,551   $219,451
 Ratio of
   expenses to
   average net
   assets.....       0.74%      0.74%       0.73%      0.73%       0.74%      0.74%       0.67%      0.67%       0.65%      0.65%
 Ratio of net
   investment
   income to
   average net
   assets.....       4.64%      4.64%       4.68%      4.60%       2.68%      2.63%       2.60%      2.60%       3.99%      3.99%
 Ratio of
   expenses to
   average net
   assets*....       1.23%      0.97%       1.22%      0.97%       1.15%      0.90%       0.75%      0.72%       0.97%      0.72%
 Ratio of net
   investment
   income to
   average net
   assets*....       4.15%      4.41%       4.19%      4.36%       2.27%      2.48%       2.52%      2.55%       3.67%      3.92%
</TABLE>
 
- ---------------
 
*During the period, certain fees were voluntarily reduced. If such voluntary fee
 reductions had not occurred, the ratios would have been as indicated.
 
                       See notes to financial statements.
 
                                      LOGO
                                       76
<PAGE>   626
LOGO
                           CALIFORNIA TAX-FREE FUND
 
                              FINANCIAL HIGHLIGHTS
 
<TABLE>
<CAPTION>
                                                               YEAR ENDED JULY 31,
                 ----------------------------------------------------------------------------------------------------------------
                         1996                   1995                   1994                   1993                   1992
                 --------------------   --------------------   --------------------   --------------------   --------------------
                 INVESTOR   FIDUCIARY   INVESTOR   FIDUCIARY   INVESTOR   FIDUCIARY   INVESTOR   FIDUCIARY   INVESTOR   FIDUCIARY
                 --------   ---------   --------   ---------   --------   ---------   --------   ---------   --------   ---------
<S>              <C>        <C>         <C>        <C>         <C>        <C>         <C>        <C>         <C>        <C>
NET ASSET
 VALUE,
 BEGINNING OF
 PERIOD.......   $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00
                 --------   ---------   --------   ---------   --------   ---------   --------   ---------   --------   ---------
INVESTMENT
 ACTIVITIES
 Net
   investment
   income.....      0.029      0.029       0.031      0.031       0.020      0.020       0.021      0.021       0.032      0.032
                 --------   ---------   --------   ---------   --------   ---------   --------   ---------   --------   ---------
DISTRIBUTIONS
 From net
   investment
   income.....     (0.029)    (0.029 )    (0.031)    (0.031 )    (0.020)    (0.020 )    (0.021)    (0.021 )    (0.032)    (0.032 )
                 --------   ---------   --------   ---------   --------   ---------   --------   ---------   --------   ---------
NET ASSET
 VALUE, END OF
 PERIOD.......   $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00    $   1.00   $   1.00
                 ========== =========== ========== =========== ========== =========== ========== =========== ========== ===========
Total
 Return.......       2.91%      2.91%       3.16%      3.16%       1.99%      1.99%       2.13%      2.13%       3.20%      3.20%
RATIOS/SUPPLEMENTARY
 DATA:
 Net Assets at
   end of
   period
   (000)......   $ 53,627   $ 98,352    $ 40,544   $105,742    $ 31,521   $114,993    $ 44,410   $142,939    $  4,609   $116,062
 Ratio of
   expenses to
   average net
   assets.....       0.55%      0.55%       0.50%      0.50%       0.50%      0.50%       0.44%      0.44%       0.54%      0.54%
 Ratio of net
   investment
   income to
   average net
   assets.....       2.89%      2.88%       3.14%      3.11%       1.96%      1.96%       2.08%      2.08%       3.15%      3.15%
 Ratio of
   expenses to
   average net
   assets*....       1.25%      1.00%       1.26%      1.01%       1.18%      0.93%       0.79%      0.73%       0.99%      0.74%
 Ratio of net
   investment
   income to
   average net
   assets*....       2.19%      2.43%       2.38%      2.60%       1.28%      1.53%       1.73%      1.78%       2.70%      2.95%
</TABLE>
 
- ---------------
 
*During the period, certain fees were voluntarily reduced. If such voluntary fee
 reductions had not occurred, the ratios would have been as indicated.
 
                       See notes to financial statements.
 
                                      LOGO
                                       77
<PAGE>   627
LOGO
                                  BOND FUND
 
                              FINANCIAL HIGHLIGHTS
 
<TABLE>
<CAPTION>
                                                                                  JUNE 20,        YEAR
                                                                                  1994 TO         ENDED
                                 YEAR ENDED                 YEAR ENDED            JULY 31,      JULY 31,      YEAR ENDED JULY 31,
                               JULY 31, 1996              JULY 31, 1995          1994(A)(B)      1994(B)
                           ----------------------     ----------------------     ----------     ---------     -------------------
                           INVESTOR     FIDUCIARY     INVESTOR     FIDUCIARY      INVESTOR      FIDUCIARY      1993        1992
                           --------     ---------     --------     ---------     ----------     ---------     -------     -------
<S>                        <C>          <C>           <C>          <C>           <C>            <C>           <C>         <C>
NET ASSET VALUE,
 BEGINNING OF PERIOD....    $10.29       $ 10.38       $10.04       $ 10.11        $10.12        $ 11.13      $ 11.02     $ 10.29
                           --------     ---------     --------     ---------     ----------     ---------     -------     -------
INVESTMENT ACTIVITIES
 Net investment
   income...............      0.69          0.66         0.66          0.64          0.07           0.63         0.70        0.67
 Net realized and
   unrealized gains
   (losses) on
   investments..........     (0.18)        (0.16)        0.23          0.27         (0.05)         (0.97)        0.35        0.77
                           --------     ---------     --------     ---------     ----------     ---------     -------     -------
   Total from Investment
     Activities.........      0.51          0.50         0.89          0.91          0.02          (0.34)        1.05        1.44
                           --------     ---------     --------     ---------     ----------     ---------     -------     -------
DISTRIBUTIONS
 From net investment
   income...............     (0.65)        (0.65)       (0.64)        (0.64)        (0.10)         (0.63)       (0.70)      (0.67)
 From net realized
   gains................        --            --           --            --            --          (0.01)       (0.24)      (0.04)
 In excess of net
   realized gains.......        --            --           --            --            --          (0.04)          --          --
                           --------     ---------     --------     ---------     ----------     ---------     -------     -------
   Total
     Distributions......     (0.65)        (0.65)       (0.64)        (0.64)        (0.10)         (0.68)       (0.94)      (0.71)
                           --------     ---------     --------     ---------     ----------     ---------     -------     -------
NET ASSET VALUE, END OF
 PERIOD.................    $10.15       $ 10.23       $10.29       $ 10.38        $10.04        $ 10.11      $ 11.13     $ 11.02
                           =========    ===========   =========    ===========   =============== ===========  ========    ========
Total Return (excludes
 sales charges).........      4.95%         4.81%        9.29%         9.43%        (3.81)%(c)     (3.14)%      10.07%      14.43%
RATIOS/SUPPLEMENTARY
 DATA:
 Net Assets at end of
   period (000).........    $1,157       $60,374       $  558       $59,758        $    7        $64,185      $33,279     $21,651
 Ratio of expenses to
   average net assets...      0.89%         0.89%        0.92%         0.92%         0.99%(d)       0.86%        0.93%       0.91%
 Ratio of net investment
   income to average net
   assets...............      6.10%         6.10%        6.29%         6.35%         5.77%(d)       6.11%        6.41%       6.23%
 Ratio of expenses to
   average net
   assets*..............      1.85%         1.61%        1.89%         1.64%         2.96%(d)       1.37%        1.55%       1.55%
 Ratio of net investment
   income to average net
   assets*..............      5.14%         5.38%        5.32%         5.62%         3.80%(d)       5.60%        5.79%       5.59%
 Portfolio turnover.....     20.65%(e)     20.88%(e)    36.20%(e)     36.20%(e)     44.33%(e)      44.33%(e)    58.81%      79.56%
</TABLE>
 
- ---------------
 
<TABLE>
<S>  <C>
(a)  Period from commencement of operations.
(b)  On June 20, 1994, the Bond Fund commenced offering Investor Shares and designated existing shares as Fiduciary Shares.
(c)  Represents total return for the Fiduciary shares for the period from August 1, 1993 to June 19, 1994 plus the total return
     for the Investor Shares for the period from June 20, 1994 to July 31, 1994.
(d)  Annualized.
(e)  Portfolio turnover is calculated on the basis of the Fund as a whole without distinguishing between the classes of shares
     issued.
     *During the period, certain fees were voluntarily reduced. If such voluntary fee reductions had not occurred, the ratios
     would have been as indicated.
</TABLE>
 
                       See notes to financial statements.
 
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                                       78
<PAGE>   628
LOGO
                              INCOME EQUITY FUND
 
                              FINANCIAL HIGHLIGHTS
 
<TABLE>
<CAPTION>
                                                                                 JUNE 20,        YEAR
                                                                                 1994 TO         ENDED
                               YEAR ENDED                  YEAR ENDED            JULY 31,      JULY 31,      YEAR ENDED JULY 31,
                              JULY 31, 1996              JULY 31, 1995          1994(A)(B)      1994(B)
                         -----------------------     ----------------------     ----------     ---------     --------------------
                         INVESTOR      FIDUCIARY     INVESTOR     FIDUCIARY      INVESTOR      FIDUCIARY       1993        1992
                         --------      ---------     --------     ---------     ----------     ---------     --------     -------
<S>                      <C>           <C>           <C>          <C>           <C>            <C>           <C>          <C>
NET ASSET VALUE,
 BEGINNING OF
 PERIOD...............   $ 13.03       $  13.00       $11.92      $  11.92        $11.85       $  12.13      $  11.42     $ 10.22
                         --------      ---------     --------     ---------     ----------     ---------     --------     -------
INVESTMENT ACTIVITIES
 Net investment
   income.............      0.42           0.42         0.42          0.44          0.04           0.39          0.38        0.40
 Net realized and
   unrealized gains on
   investments........      1.92           1.93         1.55          1.50          0.08           0.12          0.71        1.20
                         --------      ---------     --------     ---------     ----------     ---------     --------     -------
   Total from
     Investment
     Activities.......      2.34           2.35         1.97          1.94          0.12           0.51          1.09        1.60
                         --------      ---------     --------     ---------     ----------     ---------     --------     -------
DISTRIBUTIONS
 From net investment
   income.............     (0.42 )        (0.42 )      (0.44)        (0.44 )       (0.05)         (0.39 )       (0.38)      (0.40)
 From net realized
   gains..............     (0.66 )        (0.66 )      (0.42)        (0.42 )          --          (0.33 )          --          --
                         --------      ---------     --------     ---------     ----------     ---------     --------     -------
   Total
     Distributions....     (1.08 )        (1.08 )      (0.86)        (0.86 )       (0.05)         (0.72 )       (0.38)      (0.40)
                         --------      ---------     --------     ---------     ----------     ---------     --------     -------
NET ASSET VALUE, END
 OF PERIOD............   $ 14.29       $  14.27       $13.03      $  13.00        $11.92       $  11.92      $  12.13     $ 11.42
                         =========     ===========   =========    ===========   =============== ===========  ==========   ========
Total Return (excludes
 sales charges).......     18.21 %        18.25 %      17.52%        17.26 %        4.23%(c)       4.23 %        9.75%      16.04%
RATIOS/SUPPLEMENTARY
 DATA:
 Net Assets at end of
   period (000).......   $10,143       $262,660       $3,881      $221,325        $   24       $213,328      $104,840     $74,478
 Ratio of expenses to
   average net
   assets.............      1.03 %         1.03 %       1.06%         1.06 %        1.10%(d)       1.06 %        1.15%       1.16%
 Ratio of net
   investment income
   to average net
   assets.............      2.89 %         2.95 %       3.06%         3.59 %        0.93%(d)       3.29 %        3.27%       3.76%
 Ratio of expenses to
   average net
   assets*............      1.51 %         1.27 %       1.55%         1.30 %        1.33%(d)       1.10 %        1.21%       1.29%
 Ratio of net
   investment income
   to average net
   assets*............      2.41 %         2.71 %       2.57%         3.34 %        0.71%(d)       3.24 %        3.22%       3.64%
 Portfolio turnover...     41.51 %(e)     41.51 %(e)   36.64%(e)     36.64 %(e)    33.82%(e)      33.82 %(e)    29.58%      23.05%
</TABLE>
 
- ---------------
 
<TABLE>
<S>  <C>
(a)  Period from commencement of operations.
(b)  On June 20, 1994, the Income Equity Fund commenced offering Investor Shares and designated existing shares as Fiduciary
     Shares.
(c)  Represents total return for the Fiduciary Shares for the period from August 1, 1993 to June 19, 1994 plus the total return
     for the Investor Shares for the period from June 20, 1994 to July 31, 1994.
(d)  Annualized.
(e)  Portfolio turnover is calculated on the basis of the Fund as a whole without distinguishing between the classes of shares
     issued.
     *During the period, certain fees were voluntarily reduced. If such voluntary fee reductions had not occurred, the ratios
     would have been as indicated.
</TABLE>
 
                       See notes to financial statements.
 
                                      LOGO
                                       79
<PAGE>   629
LOGO
                                BALANCED FUND
 
                              FINANCIAL HIGHLIGHTS
 
<TABLE>
<CAPTION>
                                                                                                      JUNE 20,       NOVEMBER 14,
                                                                                                       1994 TO         1993 TO
                                                      YEAR ENDED                 YEAR ENDED           JULY 31,         JULY 31,
                                                    JULY 31, 1996              JULY 31, 1995           1994(A)         1994(A)
                                                ----------------------     ----------------------     ---------      ------------
                                                INVESTOR     FIDUCIARY     INVESTOR     FIDUCIARY     INVESTOR        FIDUCIARY
                                                --------     ---------     --------     ---------     ---------      ------------
<S>                                             <C>          <C>           <C>          <C>           <C>            <C>
NET ASSET VALUE, BEGINNING OF PERIOD.........    $10.79       $ 10.85       $ 9.71       $  9.76       $  9.71         $  10.00
                                                --------     ---------     --------     ---------     ---------      ------------
INVESTMENT ACTIVITIES
 Net investment income.......................      0.40          0.40         0.43          0.39            --             0.26
 Net realized and unrealized gains (losses)
   on investments............................      0.77          0.79         1.04          1.09          0.06            (0.24)
                                                --------     ---------     --------     ---------     ---------      ------------
   Total from Investment Activities..........      1.17          1.19         1.47          1.48          0.06             0.02
                                                --------     ---------     --------     ---------     ---------      ------------
DISTRIBUTIONS
 From net investment income..................     (0.40)        (0.40)       (0.39)        (0.39)        (0.06)           (0.26)
                                                --------     ---------     --------     ---------     ---------      ------------
NET ASSET VALUE, END OF PERIOD...............    $11.56       $ 11.64       $10.79       $ 10.85       $  9.71         $   9.76(e)
                                                =========    ===========   =========    ===========   ==========     ============
Total Return (excludes sales charges)........     10.94%        11.06%       15.60%        15.62%        (0.25)%(b)       (0.26)%(e)
RATIOS/SUPPLEMENTARY DATA:
 Net Assets at end of period (000)...........    $  694       $39,502       $  467       $29,961            --         $ 25,851
 Ratio of expenses to average net assets.....      0.94%         0.94%        0.90%         0.89%           --             0.87%(c)
 Ratio of net investment income to average
   net assets................................      3.48%         3.49%        3.78%         3.93%           --             3.77%(c)
 Ratio of expenses to average net assets*....      2.03%         1.78%        2.05%         1.80%           --             1.79%(c)
 Ratio of net investment income to average
   net assets*...............................      2.39%         2.65%        2.63%         3.02%           --             2.85%(c)
 Portfolio turnover (d)......................     12.84%        12.84%       20.70%        20.70%        44.14%           44.14%
 
- ---------------
 
(a)  Period from commencement of operations. On June 20, 1994, the Balanced Fund commenced offering Investor Shares and designated
     existing shares as Fiduciary Shares.
(b)  Represents total return for the Fiduciary Shares from commencement of operations to June 19, 1994 plus the total return for
     the Investor Shares for the period from June 20, 1994 to July 31, 1994.
(c)  Annualized.
(d)  Portfolio turnover is calculated on the basis of the Fund as a whole without distinguishing between the classes of shares
     issued.
(e)  Not annualized.
     *During the period, certain fees were voluntarily reduced. If such voluntary fee reductions and expense reimbursements had
     not occurred, the ratios would have been as indicated.
</TABLE>
 
                       See notes to financial statements.
 
                                      LOGO
                                       80
<PAGE>   630
LOGO
                                 GROWTH FUND
 
                              FINANCIAL HIGHLIGHTS
 
<TABLE>
<CAPTION>
                                                                                                      JUNE 20,       NOVEMBER 18,
                                                                                                       1994 TO         1993 TO
                                                      YEAR ENDED                 YEAR ENDED           JULY 31,         JULY 31,
                                                    JULY 31, 1996              JULY 31, 1995           1994(A)         1994(A)
                                                ----------------------     ----------------------     ---------      ------------
                                                INVESTOR     FIDUCIARY     INVESTOR     FIDUCIARY     INVESTOR        FIDUCIARY
                                                --------     ---------     --------     ---------     ---------      ------------
<S>                                             <C>          <C>           <C>          <C>           <C>            <C>
NET ASSET VALUE, BEGINNING OF PERIOD.........    $11.87       $ 11.87       $ 9.77       $  9.76       $  9.74         $  10.00
                                                --------     ---------     --------     ---------     ---------      ------------
INVESTMENT ACTIVITIES
 Net investment income.......................      0.11          0.12         0.15          0.15            --             0.05
 Net realized and unrealized gains (losses)
   on investments............................      1.38          1.35         2.25          2.26          0.04            (0.24)
                                                --------     ---------     --------     ---------     ---------      ------------
   Total from Investment Activities..........      1.49          1.47         2.40          2.41          0.04            (0.19)
                                                --------     ---------     --------     ---------     ---------      ------------
DISTRIBUTIONS
 From net investment income..................     (0.12)        (0.12)       (0.15)        (0.15)        (0.01)           (0.05)
 From net realized gains.....................     (0.64)        (0.64)       (0.15)        (0.15)           --               --
                                                --------     ---------     --------     ---------     ---------      ------------
   Total Distributions.......................     (0.76)        (0.76)       (0.30)        (0.30)        (0.01)           (0.05)
                                                --------     ---------     --------     ---------     ---------      ------------
NET ASSET VALUE, END OF PERIOD...............    $12.60       $ 12.58        11.87       $ 11.87       $  9.77         $   9.76
                                                =========    ===========   =========    ===========   ==========     ============
Total Return (excludes sales charges)........     12.88%        12.72%       25.10%        25.23%        (1.77)%(b)       (1.87)%(e)
RATIOS/SUPPLEMENTARY DATA:
 Net Assets at end of period (000)...........    $2,843       $41,495       $1,218       $25,096            --         $ 15,254
 Ratio of expenses to average net assets.....      0.93%         0.93%        0.84%         0.79%           --             0.77%(c)
 Ratio of net investment income to average
   net assets................................      0.96%         0.98%        1.17%         1.40%           --             0.86%(c)
 Ratio of expenses to average net assets*....      1.91%         1.67%        2.11%         1.92%           --             2.61%(c)
 Ratio of net investment income (loss) to
   average net assets*.......................     (0.02)%        0.23%       (0.10)%        0.26%           --            (0.98)%(c)
 Portfolio turnover (d)......................     78.58%        78.58%       67.91%        67.91%       123.26%          123.26%
 
- ---------------
<FN> 
(a)  Period from commencement of operations. On June 20, 1994, the Growth Fund commenced offering Investor Shares and designated
     existing shares as Fiduciary Shares.
(b)  Represents total return for the Fiduciary Shares from commencement of operations to June 19, 1994 plus the total return for
     the Investor Shares for the period from June 20, 1994 to July 31, 1994.
(c)  Annualized.
(d)  Portfolio turnover is calculated on the basis of the Fund as a whole without distinguishing between the classes of shares
     issued.
(e)  Not annualized.
     *During the period, certain fees were voluntarily reduced. In addition, certain expenses were reimbursed. If such voluntary
     fee reductions and expense reimbursements had not occurred, the ratios would have been as indicated.
</TABLE>
 
                       See notes to financial statements.
 
                                      LOGO
                                       81


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