SEI LIQUID ASSET TRUST
497, 1995-11-03
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<PAGE>
 
SEI LIQUID ASSET TRUST
OCTOBER 30, 1995
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TREASURY SECURITIES PORTFOLIO
GOVERNMENT SECURITIES PORTFOLIO
PRIME OBLIGATION PORTFOLIO
INSTITUTIONAL CASH PORTFOLIO
MONEY MARKET PORTFOLIO
 
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This Prospectus sets forth concisely information about the above-referenced
Portfolios that an investor needs to know before investing. Please read this
Prospectus carefully, and keep it on file for future reference.
 
A Statement of Additional Information dated October 30, 1995, has been filed
with the Securities and Exchange Commission and is available upon request and
without charge by writing the Distributor, SEI Financial Services Company, 680
East Swedesford Road, Wayne, Pennsylvania 19087-1658, or by calling 1-800-342-
5734. The Statement of Additional Information is incorporated into this
Prospectus by reference.
 
SEI Liquid Asset Trust (the "Trust") is an open-end management investment
company certain classes of which offer financial institutions a convenient
means of investing their own funds, or funds for which they act in a fiduciary,
agency or custodial capacity, in one or more professionally managed diversified
portfolios of securities. Some portfolios offer separate classes of units of
beneficial interest that differ from each other primarily in the allocation of
certain distribution expenses and minimum investment amounts. This Prospectus
offers Class A shares of each of the Trust's five money market portfolios
(each, a "Portfolio," and together, the "Portfolios") listed above.
 
AN INVESTMENT IN A PORTFOLIO IS NEITHER INSURED NOR GUARANTEED BY THE U.S.
GOVERNMENT, AND THERE CAN BE NO ASSURANCE THAT A PORTFOLIO WILL BE ABLE TO
MAINTAIN A STABLE NET ASSET VALUE OF $1.00 PER SHARE.
 
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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 AC-
CURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
 
 -------------------------------------------------------------------- 
 THE TRUST'S SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED
 OR ENDORSED BY, ANY BANK. THE SHARES ARE NOT FEDERALLY INSURED BY
 THE FEDERAL DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD
 OR ANY OTHER GOVERNMENT AGENCY. INVESTMENT IN THE SHARES INVOLVES
 RISK, INCLUDING POSSIBLE LOSS OF THE PRINCIPAL AMOUNT INVESTED.
 --------------------------------------------------------------------
<PAGE>
 
   
ANNUAL OPERATING EXPENSES (As a percentage of average net assets)     
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<TABLE>   
<CAPTION>
                           TREASURY   GOVERNMENT    PRIME     INSTITUTIONAL   MONEY
                          SECURITIES  SECURITIES  OBLIGATION      CASH       MARKET
                          PORTFOLIO   PORTFOLIO   PORTFOLIO     PORTFOLIO   PORTFOLIO
                          ----------  ----------  ----------  ------------- ---------
<S>                       <C>         <C>         <C>         <C>           <C>
Management/Advisory fees
 (after fee waivers)/1/      .36%        .36%        .36%          .39%       .36%
12b-1 fees/2/                .04%        .04%        .04%          .00%       .04%
Other Expenses               .04%        .04%        .04%          .05%       .04%/3/
- -------------------------------------------------------------------------------------
Total Operating Expenses     .44%/1/     .44%/1/     .44%/1/       .44%       .44%/1/
- -------------------------------------------------------------------------------------
</TABLE>    
          
1 The Manager has agreed contractually to waive its fee in an amount that
  limits the total operating expenses of such Portfolio to not more than .44%
  of its average net assets, except for the Institutional Cash Portfolio for
  which the waiver is voluntary and may be terminated at any time in the
  Manager's sole discretion. Absent this waiver, management/advisory fees for
  the Treasury Securities, Government Securities, Prime Obligation,
  Institutional Cash and Money Market Portfolios, would be .45%, .45%, .45%,
  .39% and .45%, respectively, and, total operating expenses for the Treasury
  Securities, Government Securities, Prime Obligation and Money Market
  Portfolios would be .53%, .53%, .53%, and .53%, respectively, for the fiscal
  year ended June 30, 1995. Additional information may be found under "The
  Manager and Shareholder Servicing Agent," "The Adviser" and "Distribution."
         
2 The 12b-1 fees shown reflect each Portfolio's current 12b-1 budget for
  reimbursement of expenses except that there has been a waiver of any 12b-1
  fees for the Institutional Cash Portfolio. Absent this waiver, total
  operating expenses for the Institutional Cash Portfolio would be .48%.     
   
3 Other Expenses for the Money Market Portfolio are based on estimated amounts
  for the current fiscal year.     
       
EXAMPLE
<TABLE>
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<CAPTION>
An investor in any Portfolio would pay the
following expenses on a $1,000 investment assuming
(1) 5% annual return and (2) redemption at the end  1 YR. 3 YRS. 5 YRS. 10 YRS.
of each time period:                                ----- ------ ------ -------
<S>                                                 <C>   <C>    <C>    <C>
                                                    $5.00 $14.00 $25.00 $55.00
- -------------------------------------------------------------------------------
</TABLE>
   
THE EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF FUTURE EXPENSES.
ACTUAL EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN. The purpose of this
table is to assist the investor in understanding the various costs and expenses
that may be directly or indirectly borne by investors in the Portfolios. A
person who purchases shares through a financial institution may be charged
separate fees by that institution. The information set forth in the foregoing
table and example relates only to the Portfolios' Class A shares. The Treasury
Securities Portfolio also offers Class D shares, which are subject to the same
expenses except that Class D shares bear different distribution and transfer
agent costs. Additional information regarding these differences may be found
under "The Manager and Shareholder Servicing Agent," "The Adviser" and
"Distribution." Long-term shareholders may eventually pay more than the
economic equivalent of the maximum front-end sales charges otherwise permitted
by the Rules of Fair Practice (the "Rules") of the National Association of
Securities Dealers, Inc. (the "NASD").     
 
 
                                                                    2
<PAGE>
 
FINANCIAL HIGHLIGHTS ___________________________________________________________
   
The following financial highlights for a share outstanding throughout each
year, insofar as they relate to each of the years in the period ended June 30,
1995, have been audited by Price Waterhouse LLP, independent public
accountants, whose report thereon was unqualified. This information should be
read in conjunction with the Trust's financial statements and notes thereto
which are included in the Statement of Additional Information under the heading
"Financial Information." As of June 30, 1995, the Money Market Portfolio had
not commenced operations. Additional performance information is set forth in
the Trust's 1995 Annual Report to Shareholders, which is available upon request
and without charge by calling 1-800-342-5734.     
 
For a Class A Share Outstanding Throughout each Period
<TABLE>   
<CAPTION>
                                                                                                                         Ratio of
                                                                Distributions                                              Net
         Net Asset                                Distributions     from                                      Ratio of  Investment
           Value      Net        Realized and       from Net      Realized    Net Asset          Net Assets   Expenses    Income
         Beginning Investment     Unrealized       Investment      Capital    Value End Total      End of    to Average to Average
         of Period   Income   Gains on Securities    Income         Gains     of Period Return  Period (000) Net Assets Net Assets
- ----------------------------------------------------------------------------------------------------------------------------------
<S>      <C>       <C>        <C>                 <C>           <C>           <C>       <C>     <C>          <C>        <C>
TREASURY SECURITIES
- ----------------------------------------------------------------------------------------------------------------------------------
1995       $1.00      $0.05            --             $(0.05)          --       $1.00    5.05%   1,254,888      0.44%      4.93%
1994        1.00       0.03            --              (0.03)          --        1.00    3.00    1,501,510      0.44       2.91
1993        1.00       0.03            --              (0.03)          --        1.00    3.03    2,219,701      0.44       2.99
1992        1.00       0.05            --              (0.05)          --        1.00    4.69    2,304,153      0.44       4.60
1991        1.00       0.07            --              (0.07)          --        1.00    7.04    2,248,497      0.44       6.80
1990        1.00       0.08            --              (0.08)          --        1.00    8.41    2,076,845      0.44       8.10
1989        1.00       0.08            --              (0.08)          --        1.00    8.51    2,318,763      0.44       8.20
1988        1.00       0.06            --              (0.06)          --        1.00    6.56    2,671,802      0.44       6.40
1987        1.00       0.06            --              (0.06)          --        1.00    5.91    2,580,118      0.44       5.70
1986        1.00       0.07            --              (0.07)          --        1.00    7.40    2,041,343      0.44       7.20
- ----------------------------------------------------------------------------------------------------------------------------------
GOVERNMENT SECURITIES
- ----------------------------------------------------------------------------------------------------------------------------------
1995       $1.00      $0.05            --             $(0.05)          --       $1.00    5.18%     200,768      0.44%      5.04%
1994        1.00       0.03            --              (0.03)          --        1.00    3.04      255,554      0.44       2.96
1993        1.00       0.03            --              (0.03)          --        1.00    3.05      507,832      0.44       3.00
1992        1.00       0.05            --              (0.05)          --        1.00    4.72      399,938      0.44       4.60
1991        1.00       0.07            --              (0.07)          --        1.00    7.08      520,187      0.44       6.80
1990        1.00       0.08            --              (0.08)          --        1.00    8.48      368,318      0.44       8.10
1989        1.00       0.08            --              (0.08)          --        1.00    8.69      467,056      0.44       8.30
1988        1.00       0.07            --              (0.07)          --        1.00    6.83      523,274      0.44       6.70
1987        1.00       0.06            --              (0.06)          --        1.00    5.99      479,968      0.44       5.80
1986        1.00       0.07            --              (0.07)          --        1.00    7.52      222,215      0.44       7.30
- ----------------------------------------------------------------------------------------------------------------------------------
PRIME OBLIGATION
- ----------------------------------------------------------------------------------------------------------------------------------
1995       $1.00      $0.05            --             $(0.05)          --       $1.00    5.20%     940,863      0.44%      5.21%
1994        1.00       0.03            --              (0.03)          --        1.00    3.08      918,509      0.44       3.03
1993        1.00       0.03            --              (0.03)          --        1.00    3.07    1,173,109      0.44       3.04
1992        1.00       0.05            --              (0.05)          --        1.00    4.73    1,515,554      0.44       4.70
1991        1.00       0.07            --              (0.07)          --        1.00    7.36    1,729,845      0.44       7.10
1990        1.00       0.08            --              (0.08)          --        1.00    8.57    1,804,367      0.44       8.30
1989        1.00       0.09            --              (0.09)          --        1.00    8.85    2,160,859      0.44       8.50
1988        1.00       0.07            --              (0.07)          --        1.00    7.12    2,224,159      0.44       6.90
1987        1.00       0.06            --              (0.06)          --        1.00    6.08    1,851,072      0.44       5.90
1986        1.00       0.07            --              (0.07)          --        1.00    7.58    1,469,066      0.44       7.30
- ----------------------------------------------------------------------------------------------------------------------------------
INSTITUTIONAL CASH*
- ----------------------------------------------------------------------------------------------------------------------------------
1995       $1.00    $0.0003            --           $(0.0003)          --       $1.00    4.94%         --       0.44%      5.19%
1994        1.00     0.0003            --            (0.0003)          --        1.00    2.60          --       0.44       2.63
1993        1.00     0.0003            --            (0.0003)          --        1.00    2.83          --       0.44       2.66
1992        1.00     0.0002            --            (0.0002)          --        1.00    3.47          --       0.44       3.50
1991        1.00     0.0003         0.0001           (0.0003)      (0.0001)      1.00    7.12          --       0.42       5.90
1990        1.00     0.0008         0.0003           (0.0008)      (0.0003)      1.00   10.22          --       0.44       7.80
1989        1.00     0.0007         0.0002           (0.0007)      (0.0002)      1.00    8.49          --       0.44       6.80
1988        1.00     0.0006         0.0001           (0.0006)      (0.0001)      1.00    4.02          --       0.44       5.20
1987(1)     1.00     0.0003            --            (0.0003)          --        1.00    5.48          --       0.44       5.30
<CAPTION>
                     Ratio of
                       Net
          Ratio of  Investment
          Expenses    Income
         to Average to Average
         Net Assets Net Assets
         (Excluding (Excluding
          Waivers)   Waivers)
- ----------------------------------------------------------------------------------------------------------------------------------
<S>      <C>        <C>
TREASURY SECURITIES
- ----------------------------------------------------------------------------------------------------------------------------------
1995        0.54%      4.83%
1994        0.51       2.84
1993        0.50       2.93
1992        0.50       4.50
1991        0.47       6.80
1990        0.45       8.10
1989        0.44       8.20
1988        0.44       6.40
1987        0.45       5.70
1986        0.44       7.20
- ----------------------------------------------------------------------------------------------------------------------------------
GOVERNMENT SECURITIES
- ----------------------------------------------------------------------------------------------------------------------------------
1995        0.53%      4.95%
1994        0.51       2.89
1993        0.50       2.94
1992        0.50       4.60
1991        0.48       6.70
1990        0.45       8.10
1989        0.46       8.30
1988        0.44       6.70
1987        0.46       5.80
1986        0.44       7.30
- ----------------------------------------------------------------------------------------------------------------------------------
PRIME OBLIGATION
- ----------------------------------------------------------------------------------------------------------------------------------
1995        0.53%      5.12%
1994        0.51       2.96
1993        0.50       2.98
1992        0.49       4.60
1991        0.47       7.10
1990        0.45       8.30
1989        0.44       8.50
1988        0.44       6.90
1987        0.45       5.90
1986        0.44       7.30
- ----------------------------------------------------------------------------------------------------------------------------------
INSTITUTIONAL CASH*
- ----------------------------------------------------------------------------------------------------------------------------------
1995        0.44%      5.19%
1994        0.44       2.63
1993        0.44       2.66
1992        0.44       3.50
1991        0.42       5.90
1990        0.44       7.80
1989        0.44       6.80
1988        0.44       5.20
1987(1)     0.44       5.30
</TABLE>    
    
(1) Institutional Cash Fund commenced operations on December 31, 1986. 
 *  Annualized 
    Amounts designated as "--" are either $0 or have been rounded to $0.      
<PAGE>
 
 
THE TRUST ______________________________________________________________________
   
SEI Liquid Asset Trust (the "Trust") is an open-end management investment
company that offers units of beneficial interest ("shares") in separate
diversified investment portfolios. This Prospectus offers Class A shares of the
Trust's Treasury Securities, Government Securities, Prime Obligation,
Institutional Cash and Money Market Portfolios (each a "Portfolio," and,
together, the "Portfolios"). The Treasury Securities Portfolio also offers
Class D shares. Additional information pertaining to the Trust may be obtained
by writing to SEI Financial Services Company, 680 East Swedesford Road, Wayne,
Pennsylvania 19087-1658, or by calling 1-800-342-5734.     
 
INVESTMENT 
OBJECTIVES AND 
POLICIES _______________________________________________________________________
TREASURY          The Treasury Securities Portfolio seeks to preserve
SECURITIES        principal value and maintain a high degree of liquidity
PORTFOLIO         while providing current income.
                     
                     The Portfolio invests exclusively in U.S. Treasury
                  obligations and repurchase agreements involving such
                  obligations. The repurchase agreement dealers selected for
                  the Treasury Securities Portfolio must meet certain
                  creditworthiness criteria established by Standard & Poor's
                  Corporation ("S&P").     
 
GOVERNMENT        The Government Securities Portfolio seeks to preserve
SECURITIES        principal value and maintain a high degree of liquidity
PORTFOLIO         while providing current income.
                     
                     The Portfolio invests exclusively in U.S. Treasury
                  obligations, obligations issued or guaranteed as to
                  principal and interest by agencies or instrumentalities of
                  the U.S. Government, and repurchase agreements involving
                  such obligations.     
 
PRIME             The Prime Obligation Portfolio seeks to preserve principal
OBLIGATION        value and maintain a high degree of liquidity while
PORTFOLIO         providing current income.
                     
                     The Portfolio invests exclusively in (i) commercial paper
                  rated at least A-1 by S&P or Prime-1 by Moody's Investors
                  Service, Inc. ("Moody's") at the time of investment or, if
                  not rated, determined by the Adviser to be of comparable
                  quality; (ii) obligations (including certificates of
                  deposit, time deposits, bankers' acceptances and bank notes)
                  of U.S. commercial banks that are members of the Federal
                  Reserve System or the Federal Deposit Insurance Corporation
                  or savings and loan institutions, which banks or
                  institutions have total assets of $500 million or more as
                  shown on their most recent public financial statements, at
                  the time of investment, provided that such obligations are
                  rated in the top two short-term rating categories by two or
                  more nationally recognized statistical rating organizations
                  ("NRSROs"), or one NRSRO if only one NRSRO has rated the
                  security at the time of investment or, if not rated,
                  determined by the Adviser to be of comparable quality; (iii)
                  short-term corporate obligations rated AAA or AA by S&P or
                  Aaa or Aa by Moody's at the time of investment or, if not
                  rated, determined by the Adviser to be of comparable
                  quality; (iv) short-term obligations issued by state and
                  local governmental issuers, which     
 
                                                                    4
<PAGE>
 
                     
                  are rated, at the time of investment, by at least two NRSROs
                  in one of the two highest municipal bond rating categories,
                  and which carry yields that are competitive with those of
                  other types of money market instruments of comparable
                  quality; (v) U.S. Treasury obligations and obligations
                  issued or guaranteed as to principal and interest by
                  agencies or instrumentalities of the U.S. Government; and
                  (vi) repurchase agreements involving any of the foregoing
                  obligations.     
                     
                     The Prime Obligation Portfolio may invest in restricted
                  securities and may invest up to 10% of its net assets in
                  illiquid securities. Rule 144A Securities and Section 4(2)
                  commercial paper that meet the criteria established by the
                  Board of Trustees of the Trust may be considered liquid.
                      
INSTITUTIONAL     The Institutional Cash Portfolio seeks to preserve principal
CASH PORTFOLIO    value and maintain a high degree of liquidity while
                  providing current income.
                     
                     The Portfolio invests exclusively in U.S. Treasury
                  obligations.     
 
MONEY MARKET      The Money Market Portfolio seeks to preserve principal value
PORTFOLIO         and maintain a high degree of liquidity while providing
                  current income.
                     
                     The Portfolio invests in the following U.S. dollar
                  denominated obligations: (i) commercial paper rated in the
                  highest rating category by at least one NRSRO at the time of
                  investment or, if not rated, determined by the Adviser to be
                  of comparable quality; (ii) obligations (including
                  certificates of deposit, time deposits, bankers' acceptances
                  and bank notes) of U.S. savings and loan institutions, U.S.
                  commercial banks (including foreign branches of such banks),
                  and U.S. and London 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 most recent public financial statements, at
                  the time of investment; (iii) short-term corporate
                  obligations rated in one of the two highest rating
                  categories by at least one NRSRO at the time of investment,
                  or, if not rated, determined by the Adviser to be of
                  comparable quality; (iv) U.S. Treasury obligations and
                  obligations issued or guaranteed as to principal and
                  interest by the agencies or instrumentalities of the U.S.
                  Government; (v) repurchase agreements involving any of the
                  foregoing obligations; and (vi) custodial receipts
                  representing investments in component parts of U.S. Treasury
                  obligations.     
                     
                     The Money Market Portfolio may invest in restricted
                  securities and may invest up to 10% of its net assets in
                  illiquid securities. Rule 144A securities and Section 4(2)
                  commercial paper that meet the criteria established by the
                  Board of Trustees of the Trust may be considered liquid.
                      
                        
                     There can be no assurance that the Portfolios will
                  achieve their respective investment objectives.     
 
                                                                    5
<PAGE>
 
 
GENERAL 
INVESTMENT 
POLICIES ______________________________________________________________________
                     
                  In purchasing obligations, each Portfolio complies with the
                  requirements of Rule 2a-7 under the 1940 Act, as that Rule
                  may be amended from time to time. The quality, maturity and
                  diversification requirements of the Government Securities
                  and Prime Obligation Portfolios are more restrictive than
                  those imposed by Rule 2a-7. If Shareholders of these
                  Portfolios elect to be governed by Rule 2a-7 in the future,
                  the Portfolios will become subject to the Rule 2a-7
                  restrictions applicable to the Trust's other Portfolios.
                  Rule 2a-7's requirements currently provide that each
                  Portfolio must limit its investments to securities with
                  remaining maturities of 397 days or less, and must maintain
                  a dollar-weighted average maturity of 90 days or less. In
                  addition, each Portfolio may only invest in securities
                  (other than U.S. Government Securities) rated in one of the
                  two highest categories for short-term securities by at least
                  two NRSROs (or by one NRSRO if only one NRSRO has rated the
                  security), or, if unrated, determined by the Adviser (in
                  accordance with procedures adopted by the Trust's Board of
                  Trustees) to be of equivalent quality to rated securities in
                  which the Portfolio may invest. Purchases of unrated
                  securities and securities rated by only one NRSRO will be
                  ratified by the Trust's Board of Trustees.     
                     
                     Securities rated in the highest rating category (e.g., A-
                  1 by S&P) by at least two NRSROs (or, if unrated, determined
                  by the Adviser to be of comparable quality) are "first tier"
                  securities. Securities rated in the second highest rating
                  category (e.g., A-2 by S&P) by at least one NRSRO (or, if
                  unrated, determined by the Adviser to be of comparable
                  quality) are considered to be "second tier" securities. Each
                  Portfolio will invest, in the aggregate, no more than 5% of
                  its assets in second tier securities, and any investment in
                  any one second tier security is limited to the greater of 1%
                  of a Portfolio's total assets or $1 million.     
                     
                     The Government Securities and Prime Obligation Portfolios
                  may only purchase securities with a remaining maturity of
                  365 days or less, and, as a matter of non-fundamental
                  policy, will maintain a dollar-weighted average portfolio
                  maturity of 90 days or less. Each Portfolio may purchase
                  securities on a when-issued or delayed delivery basis.     
                     
                     For additional information regarding the Portfolios'
                  permitted investments and the ratings referred to above, see
                  "Description of Permitted Investments and Risk Factors" and
                  the Statement of Additional Information.     
 
INVESTMENT 
LIMITATIONS ___________________________________________________________________
                     
                  The investment objective and investment limitations are
                  fundamental policies of the Portfolios. Fundamental policies
                  cannot be changed with respect to a Portfolio without the
                  consent of the holders of a majority of the Trust's or that
                  Portfolio's outstanding shares.     
 
                                                                    6
<PAGE>
 
                     
                     It is a fundamental policy of each Portfolio to use its
                  best efforts to maintain a constant net asset value of $1.00
                  per share. In addition, it is a fundamental policy of each
                  of the Government Securities and Prime Obligation Portfolios
                  to invest its assets solely in the securities listed as
                  appropriate investments for that Portfolio.     
 
                  Each Portfolio may not:
                     
                  1. Purchase securities of any issuer (except securities
                     issued or guaranteed by the U.S. Government, its agencies
                     or instrumentalities and any securities guaranteed
                     thereby) if as a result more than 5% of the total assets
                     of the Portfolio (based on fair market value at the time
                     of investment) would be invested in the securities of
                     such issuer; provided, however, that the Treasury
                     Securities, Money Market and Institutional Cash
                     Portfolios may invest up to 25% of their total assets
                     without regard to this restriction as permitted by Rule
                     2a-7.     
                     
                  2. Purchase any securities which would cause more than 25%
                     of the total assets of the Portfolio 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 (a) domestic banks and (b) obligations
                     issued or guaranteed by the U.S. Government or its
                     agencies and instrumentalities.     

                  3. Borrow money except for temporary or emergency purposes
                     and then only in an amount not exceeding 10% of the value
                     of the total assets of that Portfolio. This borrowing
                     provision is included solely to facilitate the orderly
                     sale of portfolio securities to accommodate substantial
                     redemption requests if they should occur and is not for
                     investment purposes. All borrowings will be repaid before
                     making additional investments for that Portfolio and any
                     interest paid on such borrowings will reduce the income
                     of that Portfolio.

                  The foregoing percentage limitations will apply at the time
                  of the purchase of a security. Additional investment
                  limitations are set forth in the Statement of Additional
                  Information.
 
THE MANAGER 
AND SHAREHOLDER 
SERVICING AGENT _______________________________________________________________
                     
                  SEI Financial Management Corporation (the "Manager" and the
                  "Transfer Agent"), 680 East Swedesford Road, Wayne,
                  Pennsylvania 19087-1658, a wholly-owned subsidiary of SEI
                  Corporation ("SEI"), provides the Trust with overall
                  management services, regulatory reporting, all necessary
                  office space, equipment, personnel and facilities, and acts
                  as transfer agent, dividend disbursing agent, and
                  shareholder servicing agent.     
                     
                     The Manager is entitled to a fee which is calculated
                  daily and paid monthly at an annual rate of .42% of the
                  average daily net assets of each Portfolio, except the
                  Institutional Cash Portfolio, for which the Manager is
                  entitled to a fee of .36% of the Portfolio's average daily
                  net assets. The Manager has contractually agreed to waive
                  all or a     
 
                                                                    7
<PAGE>
 
                     
                  portion of its fee with respect to each Portfolio, except
                  the Institutional Cash Portfolio, in order to limit the
                  total operating expenses of the Class A shares of such
                  Portfolios to not more than .44% of its average daily net
                  assets. For the Institutional Cash Portfolio only, this
                  waiver is voluntary and may be terminated at any time in the
                  Manager's sole discretion.     
                         
                     
                     For the fiscal year ended June 30, 1995, the Treasury
                  Securities, Government Securities, Prime Obligation and
                  Institutional Cash Portfolios paid management fees, after
                  waivers, of .33%, .33%, .33% and .36%, respectively, of
                  their average daily net assets. As of June 30, 1995, the
                  Money Market Portfolio had not commenced operations.     
 
THE ADVISER ____________________________________________________________________
                     
                  Wellington Management Company ("WMC" or the "Adviser"), 75
                  State Street, Boston, Massachusetts 02109, serves as the
                  investment adviser to each Portfolio. The Adviser, under an
                  investment advisory agreement with the Trust, invests the
                  assets of the Portfolios and continuously reviews,
                  supervises and administers each Portfolio's investment
                  program, subject to the supervision of, and policies
                  established by, the Trustees of the Trust.     
                     
                     As of September 30, 1995, the Adviser had investment
                  management authority with respect to approximately $102.4
                  billion of assets, including the assets of the Trust, SEI
                  Daily Income Trust and a portfolio of Insurance Investment
                  Products Trust, each of which is an open-end management
                  investment company administered by the Manager. WMC is a
                  professional investment counseling firm which provides
                  investment services to investment companies, employee
                  benefit plans, endowments, foundations, and other
                  institutions and individuals. The Adviser's predecessor
                  organizations have provided investment advisory services to
                  investment companies since 1933, and to investment
                  counseling clients since 1960. WMC is a Massachusetts
                  general partnership, of which the following persons are
                  managing partners: Robert W. Doran, Duncan M. McFarland and
                  John B. Neff.     
                     
                     John C. Keogh, Senior Vice President of the Adviser,
                  serves as portfolio manager to the Portfolios. He has been
                  an investment professional with the Adviser since 1983, and
                  has served as portfolio manager to the Treasury Securities
                  Portfolio since July, 1994. Prior to that date, he assisted
                  the portfolio manager in the management of the Portfolio.
                  Mr. Keogh has served as portfolio manager of the
                  Institutional Cash Portfolio since the Portfolio's inception
                  in 1986.     
                     
                     The Adviser is entitled to a fee which is calculated
                  daily and paid monthly at an annual rate of .075% of the
                  combined average daily net assets of the Trust's Portfolios
                  up to $500 million, and .02% of such average daily net
                  assets in excess of $500 million. Such fees are allocated
                  daily among the Portfolios of the Trust on the basis of
                  their relative net assets. For the fiscal year ended June
                  30, 1995, the Treasury Securities, Government Securities,
                  Prime Obligation, and Institutional Cash Portfolios paid
                  advisory fees, after fee waivers, of .03%, .03%, .03%, and
                  .03%, respectively, of their relative net assets.     
 
                                                                    8
<PAGE>
 
       
DISTRIBUTION ___________________________________________________________________
                     
                  SEI Financial Services Company (the "Distributor"), a
                  wholly-owned subsidiary of SEI, serves as each Portfolio's
                  distributor pursuant to a distribution agreement (the
                  "Distribution Agreement") with the Trust. Each Class of the
                  Trust has adopted a distribution plan (the "Class A Plan"
                  and "Class D Plan," and, collectively, the "Plans") pursuant
                  to Rule 12b-1 under the Investment Company Act of 1940 (the
                  "1940 Act").     
                     
                     The Class A Plan provides for reimbursement for expenses
                  incurred by the Distributor, provided those expenses are
                  permissible as to both type and amount under a budget
                  adopted by the Board of Trustees, including those who are
                  not interested persons and have no financial interest in the
                  Plan or any related agreement ("Qualified Trustees").
                  Pursuant to state law, the Distributor has voluntarily
                  agreed to limit the distribution-related expenses of the
                  Class A shares of each Portfolio to .25%. Currently, the
                  budget (shown here as a percentage of average daily net
                  assets) for each Portfolio is set at an annual rate of .04%.
                         
                     Distribution-related expenses reimbursable to the
                  Distributor under the budget include those related to the
                  costs of the printing of reports, prospectuses, notices and
                  similar materials for persons other than current
                  shareholders, federal and state securities law registration
                  and the cost of complying with such laws in the distribution
                  of the Trust's shares, advertising expenses and promotional
                  and sales expenses including expenses for travel,
                  communication and compensation and benefits for sales
                  personnel. Distribution expenses not attributable to a
                  specific Portfolio are allocated among each of the
                  Portfolios of the Trust on the basis of their average net
                  assets. The Trust is not obligated to reimburse the
                  Distributor for any expenditures in excess of the approved
                  budget.     
                     
                     It is possible that an institution may offer different
                  classes of shares to its customers and thus receive
                  different compensation with respect to different classes.
                  These financial institutions may also charge separate fees
                  to their customers.     
                     
                     The Trust may execute brokerage or other agency
                  transactions through the Distributor for which the
                  Distributor may receive compensation.     
                     
                     The Distributor may, from time to time in its sole
                  discretion, institute one or more promotional incentive
                  programs, which will be paid for by the Distributor from the
                  sales charge it receives or from any other source available
                  to it. Under any such program, the Distributor will provide
                  promotional incentives, in the form of cash or other
                  compensation, including merchandise, airline vouchers, trips
                  and vacation packages, to all dealers selling shares of the
                  Portfolios. Such promotional incentives will be offered
                  uniformly to all shares of the Portfolios, and also will be
                  offered uniformly to all dealers, predicated upon the amount
                  of shares of the Portfolios sold by such dealer.     
 
 
                                                                    9
<PAGE>
 
 
PURCHASE AND 
REDEMPTION 
OF SHARES _____________________________________________________________________
                     
                  Financial institutions may acquire Class A shares of the
                  Portfolios for their own account, or as a record owner on
                  behalf of fiduciary, agency or custody accounts, by placing
                  orders with the Transfer Agent. Institutions that use
                  certain SEI proprietary systems may place orders
                  electronically through those systems. State securities laws
                  may require banks and financial institutions purchasing
                  shares for their customers to register as dealers pursuant
                  to state laws. Financial institutions may impose an earlier
                  cut-off time for receipt of purchase orders directed through
                  them to allow time for processing and transmittal of these
                  orders to the Transfer Agent for effectiveness on the same
                  day. Financial institutions which purchase shares for the
                  accounts of their customers may impose separate charges on
                  these customers for account services. Shares of the
                  Portfolios are offered only to residents of states in which
                  the shares are eligible for purchase.     
                            
                     Shares of each Portfolio may be purchased or redeemed on
                  days on which the New York Stock Exchange is open for
                  business ("Business Days"). However, money market fund
                  shares cannot be purchased by Federal Reserve wire on
                  Federal holidays restricting wire transfers.     
                     
                     Shareholders who desire to purchase shares must place
                  their orders with the Transfer Agent prior to 2:00 p.m.,
                  Eastern time (12:00 p.m., Eastern time for the Institutional
                  Cash Portfolio), on any Business Day for the order to be
                  accepted on that Business Day. Cash investments must be
                  transmitted or delivered in federal funds to the wire agent
                  by the close of business on the same day the order is
                  placed. The Trust reserves the right to reject a purchase
                  order when the Distributor determines that it is not in the
                  best interest of the Trust or shareholders to accept such
                  purchase order.     
                     
                     The Trust will send shareholders a statement after each
                  purchase or redemption transaction. The purchase price of
                  shares is the net asset value next determined after a
                  purchase order is received and accepted by the Trust. The
                  net asset value per share of each Portfolio is determined by
                  dividing the total market value of the Portfolio's
                  investments and other assets, less any liabilities, by the
                  total outstanding shares of that Portfolio. Net asset value
                  per share is determined daily as of 2:00 p.m., Eastern time
                  (12:00 p.m., Eastern time for the Institutional Cash
                  Portfolio), on each Business Day.     
                     
                     Shareholders who desire to redeem shares of a Portfolio
                  must place their redemption orders with the Transfer Agent
                  prior to 2:00 p.m., Eastern time (12:00 p.m., Eastern time
                  for the Institutional Cash Portfolio), on any Business Day.
                  The redemption price is the net asset value per share of the
                  Portfolio next determined after receipt by the Transfer
                  Agent of the redemption order. Payment on redemptions will
                  be made as promptly as possible and, in any event, within
                  seven days after the redemption order is received.     
                     
                     Purchase and redemption orders may be placed by
                  telephone. Neither the Trust nor the Trust's Transfer Agent
                  will be responsible for any loss, liability, cost or expense
                  for     
 
                                                                    10
<PAGE>
 
                     
                  acting upon wire instructions or upon telephone instructions
                  that it reasonably believes to be genuine. The Trust and the
                  Trust's Transfer Agent will each employ reasonable
                  procedures to confirm that instructions communicated by
                  telephone are genuine, including requiring a form of
                  personal identification prior to acting upon instructions
                  received by telephone and recording telephone instructions.
                         
                     If market conditions are extraordinarily active, or other
                  extraordinary circumstances exist, shareholders may
                  experience difficulties placing redemption orders by
                  telephone, and may wish to consider placing orders by other
                  means.     
 
PERFORMANCE ____________________________________________________________________
                     
                  From time to time, the Portfolios may advertise "current
                  yield" and "effective compound yield." These figures will
                  fluctuate, as they are based on historical earnings and are
                  not intended to indicate future performance. The "current
                  yield" of the Portfolios refers to the income generated by
                  an investment over a seven-day period which is then
                  "annualized." That is, the amount of income generated by an
                  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 is assumed to be reinvested. The "effective
                  yield" will be slightly higher than the "current yield"
                  because of the compounding effect of this assumed
                  reinvestment.     
                     
                     A Portfolio may periodically compare its performance to
                  that of: (i) other mutual funds tracked by mutual fund
                  rating services (such as Lipper Analytical), financial and
                  business publications and periodicals; (ii) broad groups of
                  comparable mutual funds; (iii) unmanaged indices which may
                  assume investment of dividends but generally do not reflect
                  deductions for administrative and management costs; or (iv)
                  other investment alternatives.     
                     
                     For each Portfolio, the performance of the Class A shares
                  will normally be higher than the performance of the Class D
                  shares of that Portfolio because of additional distribution
                  and transfer agent expenses charged to Class D shares.     
 
TAXES __________________________________________________________________________
                     
                  The following summary of federal income tax consequences is
                  based on current tax laws and regulations, which may be
                  changed by legislative, judicial or administrative action.
                  No attempt has been made to present a detailed explanation
                  of the federal, state, or local income tax treatment of the
                  Portfolios or their shareholders. In addition, state and
                  local tax consequences of an investment in a Portfolio may
                  differ from the federal income tax consequences described
                  below. Accordingly, shareholders are urged to consult their
                  tax advisers regarding specific questions as to federal,
                  state and local income taxes. Additional information
                  concerning taxes is set forth in the Statement of Additional
                  Information.     
 
                                                                    11
<PAGE>
 
 
                     
Tax Status of     Each Portfolio is treated as a separate entity for federal
the Portfolios    tax purposes and is not combined with the Trust's other
                  Portfolios. Each Portfolio intends to qualify for the
                  special tax treatment afforded regulated investment
                  companies under Subchapter M the Internal Revenue Code of
                  1986, as amended, so as to be relieved of federal income tax
                  on net investment company taxable income and net capital
                  gains (the excess of net long-term capital gain over net
                  short-term capital losses) distributed to shareholders.     
 
                     
Tax Status of     Each Portfolio distributes substantially all of its net
Distributions     investment income (including net short-term capital gains)
                  to shareholders. Dividends from a Portfolio's net investment
                  income are taxable to its shareholders as ordinary income
                  (whether received in cash or in additional shares).
                  Distributions of net capital gains are taxable as long-term
                  capital gains, regardless of how long shareholders have held
                  their shares and regardless of whether the distributions are
                  received in cash or in additional shares. Dividends and
                  distributions of capital gains paid by each Portfolio do not
                  qualify for the dividends received deduction for corporate
                  shareholders. Each portfolio will provide annual reports to
                  shareholders of the federal income tax status of all
                  distributions.     
                     Dividends declared by a Portfolio in October, November or
                  December of any year and payable to shareholders of record
                  on a date in such a month will be deemed to have been paid
                  by the Portfolio and received by the shareholders on
                  December 31 of the year declared if paid by the Portfolio at
                  any time during the following January.
                     
                     Each Portfolio intends to make sufficient distributions
                  prior to the end of each calendar year to avoid liability
                  for the federal excise tax applicable to regulated
                  investment companies.     
                     
                     With respect to investments in U.S. Treasury STRIPS,
                  which are sold at original issue discount and thus do not
                  make periodic cash interest payments, each Portfolio will be
                  required to include as part of its current income, the
                  imputed interest on such obligations even though the
                  Portfolio has not received any interest payments on such
                  obligations during that period. Because each Portfolio
                  distributes all of its net investment income to its
                  shareholders, a Portfolio may have to sell Portfolio
                  securities in order to distribute such imputed income, which
                  may occur at a time when the Adviser would not have chosen
                  to sell such securities and, which may result in a taxable
                  gain or loss.     
                     
                     Investment income received by the Portfolios on direct
                  U.S. Government obligations is exempt from tax at the state
                  level when received directly by a Portfolio, and may be
                  exempt, depending on the state, when received by a
                  shareholder as income dividends from any Portfolio provided
                  certain state-specific conditions are satisfied. Interest
                  received on repurchase agreements collateralized by U.S.
                  Government obligations normally is not exempt from state
                  taxation. Each Portfolio will inform shareholders annually
                  of the percentage of income and distributions derived from
                  direct U.S. Government obligations. Shareholders should
                  consult their tax advisers to determine whether any portion
                  of the income dividends received from a Portfolio is
                  considered tax exempt in their particular states.     
                         
                                                                    12
<PAGE>
 
                     
                     Each sale, exchange, or redemption of any Portfolio's
                  shares is a taxable transaction to the shareholder.     
 
GENERAL 
INFORMATION ___________________________________________________________________
                     
The Trust         SEI Liquid Asset Trust (the "Trust") was organized as a
                  Massachusetts business trust under a Declaration of Trust
                  dated July 20, 1981. The Declaration of Trust permits the
                  Trust to offer separate Portfolios of shares and different
                  classes of each Portfolio. All consideration received by the
                  Trust for shares of any portfolio and all assets of such
                  portfolio belong to that portfolio or class and are subject
                  to liabilities related thereto.     
                     The Trust pays its expenses, including fees of its
                  service providers, audit and legal expenses, expenses of
                  preparing prospectuses, proxy solicitation material and
                  reports to shareholders, costs of custodial services and
                  registering the shares under federal and state securities
                  laws, pricing, insurance expenses, litigation and other
                  extraordinary expenses, brokerage costs, interest charges,
                  taxes and organization expenses.

Trustees of the   The management and affairs of the Trust are supervised by
Trust             the Trustees under the laws of the Commonwealth of
                  Massachusetts. The Trustees have approved contracts under
                  which, as described above, certain companies provide
                  essential management services to the Trust.
                     
Voting Rights     Each share held entitles the shareholder of record to one
                  vote. The shareholders of each Portfolio or class of the
                  Trust will vote separately on matters relating solely to
                  that Portfolio or class. As a Massachusetts business trust,
                  the Trust is not required to hold annual meetings of
                  shareholders, but approval will be sought for certain
                  changes in the operation of the Trust and for the election
                  of Trustees under certain circumstances. In addition, a
                  Trustee may be removed by the remaining Trustees or by
                  shareholders at a special meeting called upon written
                  request of shareholders owning at least 10% of the
                  outstanding shares of the Trust. In the event that such a
                  meeting is requested, the Trust will provide appropriate
                  assistance and information to the shareholders requesting
                  the meeting.     
                     
Reporting         The Trust issues unaudited financial statements semi-
                  annually and audited financial statements annually. The
                  Trust furnishes proxy statements and other reports to
                  shareholders of record.     
                     
Shareholder       Shareholder inquiries should be directed to the Manager, SEI
Inquiries         Financial Management Corporation, 680 East Swedesford Road,
                  Wayne, Pennsylvania 19087-1658.     
                      
Dividends         The dividends of Class A shares will normally be higher than
                  of Class D shares of each Portfolio because of the
                  additional distribution and transfer agent expenses charged
                  to Class D shares.     
                     
                     Substantially all of the net investment income (exclusive
                  of capital gains) of each Portfolio is periodically declared
                  and paid as a dividend. Dividends are paid by the Portfolio
                  in federal funds or in additional shares at the discretion
                  of the shareholder on the first     
 
                                                                    13
<PAGE>
 
                  Business Day of each month. Currently, capital gains (the
                  excess of net long-term capital gain over net short-term
                  capital loss) realized, if any, are distributed at least
                  annually.
    
                       
Counsel and       Morgan, Lewis & Bockius LLP serves as counsel to the Trust.
Independent       Price Waterhouse LLP serves as the independent accountants
Accountants       to the Trust.     
              
                  
Custodian and     CoreStates Bank, N.A., Broad and Chestnut Streets, P.O. Box
Wire Agent        7618, Philadelphia, Pennsylvania 19101 (the "Custodian"),
                  serves as custodian of the Trust's assets and as wire agent
                  of the Trust. The Custodian holds cash, securities and other
                  assets of the Trust as required by the 1940 Act.     
 
DESCRIPTION OF 
PERMITTED 
INVESTMENTS AND 
RISK FACTORS __________________________________________________________________
                     
                  The following is a description of certain of the permitted
                  investments for the Portfolios, and the associated risk
                  factors:     
    
                   
Bank Notes        Bank notes are notes used to represent debt obligations
                  issued by banks in large denominations.     
                 
                  
Bankers'          A bankers' acceptance is a bill of exchange or time drafts
Acceptance        drawn on and accepted by a commercial bank. It is 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   Certificates of deposit are negotiable interest-bearing
Deposit           instruments with a specific maturity. They 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. Certificates of deposit
                  have penalties for early withdrawal.     
                 
                  
Commercial        Commercial paper is the term used to designate unsecured
Paper             short-term promissory notes issued by municipalities,
                  corporations and other entities. Maturities on these issues
                  vary from one to 270 days. Section 4(2) commercial paper is
                  issued in reliance on an exemption from registration under
                  Section 4(2) of the Securities Act of 1933 (the "1933 Act"),
                  and is generally sold to institutional investors who
                  purchase for investment. Any resale of such commercial paper
                  must be in an exempt transaction, usually to an
                  institutional investor through the issuer or investment
                  dealers who make a market in such commercial paper.     
                 
                  
Demand            Demand instruments are instruments which may involve a
Instruments       conditional or unconditional demand feature which permits
                  the holder to demand payment of the principal amount of the
                  instrument. They may include variable amount master demand
                  notes.     
                 
                  
Foreign           The Money Market Portfolio may invest in U.S. dollar
Securities        denominated obligations or securities of U.S. and London
                  branches of foreign banks. Investments in such instruments
                  involve risks that are different from investments in
                  securities of U.S. banks. These risks may include future
                  unfavorable political and economic developments, possible
                  withholding taxes,     
                            
                                                                    14
<PAGE>
 
                     
                  seizure of foreign deposits, currency controls, interest
                  limitations or other governmental restrictions which might
                  affect payment of principal or interest. Additionally, there
                  may be less public information available about foreign banks
                  and their branches. Foreign branches of foreign banks are
                  not regulated by U.S. banking authorities and generally are
                  not bound by accounting, auditing and financial reporting
                  standards comparable to U.S. banks. However, the Adviser
                  attempts to minimize these risks by investing only in those
                  instruments which satisfy the high quality and maturity
                  restrictions applicable to a Portfolio.     
                     
Illiquid          Illiquid securities are securities which cannot be sold or
Securities        disposed of within seven business days at approximately the
                  value at which they are being carried on a Portfolio's
                  books. Illiquid securities may include demand instruments
                  with demand notice periods exceeding seven days for which
                  there is no secondary market, and repurchase agreements with
                  maturities over seven days in length.     
                     
Repurchase        Repurchase agreements are agreements by which a Portfolio
Agreements        obtains a security and simultaneously commits to return the
                  security to the seller at an agreed upon price on an agreed
                  upon date. The custodian will hold the security as
                  collateral for the repurchase agreement. A Portfolio bears a
                  risk of loss in the event the other party defaults on its
                  obligations and the Portfolio is delayed or prevented from
                  exercising its right to dispose of the collateral or if the
                  Portfolio realizes a loss on the sale of the collateral. A
                  Portfolio will enter into repurchase agreements only with
                  financial institutions deemed to present minimal risk of
                  bankruptcy during the term of the agreement based on
                  established guidelines. Repurchase agreements are considered
                  loans under the 1940 Act.     
                  
Restricted        Restricted Securities are securities that may not be sold
Securities        freely to the public absent registration under the 1933 Act,
                  or an exemption from registration.     
                     
Time Deposits     Time deposits are non-negotiable receipts issued by a bank
                  in exchange for the deposit of funds. Similar to a
                  certificate of deposit, a time deposit earns a specified
                  rate of interest over a definite period of time; however, it
                  cannot be traded in the secondary market.     
                     
U.S. Government   Certain federal agencies, such as the Government National
Agency            Mortgage Association ("GNMA"), have been established as
Obligations       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 (such as GNMA securities) or supported
                  by the issuing agency's right to borrow from the Treasury.
                  The issues of other agencies are supported only by the
                  credit of the instrumentality (such as Federal National
                  Mortgage Association securities). Any guarantee by the U.S.
                  Government, its agencies or instrumentalities of all
                  securities in which a Portfolio 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
                  the yield or value of shares of that Portfolio.     
                     
U.S. Treasury     U.S. Treasury obligations consist of bills, notes and bonds
Obligations       issued by the U.S. Treasury and separately traded interest
                  and principal component parts of such obligations that are
                      
                                                                    15
<PAGE>
 
                  transferable through the federal book-entry system known as
                  Separately Traded Registered Interest and Principal
                  Securities ("STRIPS").
                     
                     STRIPS 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 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 investments. See also "Taxes."     
                     
Variable and      Certain of the obligations purchased by a Portfolio may
Floating Rate     carry variable or floating rates of interest and may involve
Instruments       a conditional or unconditional demand feature. Such
                  obligations may include variable amount master demand notes.
                  Such instruments bear interest at rates which are not fixed,
                  but which vary with changes in specified market rates or
                  indices. The interest rates on these securities may be reset
                  daily, weekly, quarterly or at some other interval, 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.     
                  
When-Issued and   When-issued or delayed delivery transactions involve the
Delayed           purchase of an instrument with payment and delivery taking
Delivery          place in the future. Delivery of and payment for these
Securities        securities may occur a month or more after the date of the
                  purchase commitment. A Portfolio will maintain with the
                  custodian a separate account with liquid, high grade debt
                  securities or cash in an amount at least equal to these
                  commitments. The interest rate realized on these securities
                  is fixed as of the purchase date, and no interest accrues to
                  a Portfolio before settlement. These securities are subject
                  to market fluctuation due to changes in market interest
                  rates, and it is possible that the market value at the time
                  of settlement could be higher or lower than the purchase
                  price if the general level of interest rates has changed.
                  Although a Portfolio generally purchases securities on a
                  when-issued or forward commitment basis with the intention
                  of actually acquiring securities, a Portfolio may dispose of
                  a when-issued security or forward commitment prior to
                  settlement if the Adviser deems it appropriate to do so.
                      
                                                                    16
<PAGE>
 
TABLE OF CONTENTS
- --------------------------------------------------------------------------------
<TABLE>   
<S>                                                                      <C>
Annual Operating Expenses...............................................    2
Financial Highlights....................................................    3
The Trust...............................................................    4
Investment Objectives and Policies......................................    4
General Investment Policies.............................................    6
Investment Limitations..................................................    6
The Manager and Shareholder Servicing Agent.............................    7
The Adviser.............................................................    8
Distribution............................................................    9
Purchase and Redemption of Shares.......................................   10
Performance.............................................................   11
Taxes...................................................................   11
General Information.....................................................   13
Description of Permitted Investments and Risk Factors...................   14
</TABLE>    
<PAGE>
 
PROSPECTUS
OCTOBER 30, 1995     

- --------------------------------------------------------------------------------
 
TREASURY SECURITIES PORTFOLIO
       
- --------------------------------------------------------------------------------
   
Please read this prospectus carefully before investing, and keep it on file for
future reference. It contains information that can help you decide if the
Portfolio's investment goals match your own.     
   
A Statement of Additional Information dated October 30, 1995, has been filed
with the Securities and Exchange Commission and is available upon request and
without charge by writing the Distributor, SEI Financial Services Company, 680
East Swedesford Road, Wayne, Pennsylvania 19087-1658, or by calling 1-800-437-
6016. The Statement of Additional Information is incorporated by reference into
this Prospectus.     
   
SEI Liquid Asset Trust (the "Trust") is an open-end management investment
company certain classes of which offer shareholders a convenient means of
investing their funds in one or more professionally managed diversified
portfolios of securities. The Treasury Securities Portfolio offers two classes
of shares, Class A shares and Class D shares. Class D shares differ from Class
A shares primarily in the allocation of certain distribution expenses and
transfer agent fees. Class D shares are available through SEI Financial
Services Company (the Trust's distributor), and through participating broker-
dealers, financial institutions and other organizations. This Prospectus offers
Class D shares of the Trust's Treasury Securities Portfolio (the "Portfolio").
    
   
AN INVESTMENT IN THE PORTFOLIO IS NEITHER INSURED NOR GUARANTEED BY THE U.S.
GOVERNMENT, AND THERE CAN BE NO ASSURANCE THAT THE PORTFOLIO 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.     

- --------------------------------------------------------------------------------

 THE TRUST'S SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED
 OR ENDORSED BY, ANY BANK. THE SHARES ARE NOT FEDERALLY INSURED BY
 THE FEDERAL DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD
 OR ANY OTHER GOVERNMENT AGENCY. INVESTMENT IN THE SHARES INVOLVES
 RISK, INCLUDING POSSIBLE LOSS OF THE PRINCIPAL AMOUNT INVESTED.     

- --------------------------------------------------------------------------------
<PAGE>
 
 ....................................................
                                                                              
 TABLE OF                                                                     
 CONTENTS                                                                     
                                                                              
<TABLE>                    
  <S>                                          <C>    
  Fund Highlights............................   2    
  Portfolio Expenses.........................   4    
  Financial Highlights.......................   5    
  Your Account and Doing Business            
   with Us...................................   6    
  Investment Objective and Policies..........   9    
  General Investment Policies................   9    
  Investment Limitations.....................  10    
  The Manager and Shareholder             
   Servicing Agent...........................  11    
  The Adviser................................  11    
  Distribution...............................  12    
  Performance................................  13    
  Taxes......................................  14    
  Additional Information             
   About Doing Business with Us..............  15    
  General Information........................  18    
  Description of Permitted               
   Investments and Risk Factors..............  19    
</TABLE>                   
 ....................................................  

HOW TO READ THIS PROSPECTUS ____________________________________________________
This Prospectus gives you information that you should know about the Portfolio
before investing. Brief descriptions are also provided throughout the
Prospectus to better explain certain key points. To find these helpful guides,
look for this symbol. [SYMBOL APPEARS HERE]
 
FUND HIGHLIGHTS ________________________________________________________________
The following summary provides basic information about the Class D shares of
the Trust's Treasury Securities Portfolio. This summary is qualified in its
entirety by reference to the more detailed information provided elsewhere in
this Prospectus and in the Statement of Additional Information.
 
INVESTMENT       The Treasury Securities Portfolio seeks to preserve principal
OBJECTIVE AND    value and maintain a high degree of liquidity while providing
POLICIES         current income. See "Investment Objective and Policies" and
                 "Description of Permitted Investments and Risk Factors."
                                                                              
UNDERSTANDING    There can be no assurance that the Portfolio will achieve its
RISK             investment objective. See "Investment Objective and Policies"
                 and "Description of Permitted Investments and Risk Factors."
                                                                              
MANAGEMENT       Wellington Management Company (the "Adviser") serves as the
PROFILE          investment adviser to the Portfolio. The Adviser is a
                 professional investment counseling firm which has been 
                 providing investment advisory services to mutual funds since 
                 1933. SEI Financial Management Corporation serves as the 
                 manager and shareholder servicing agent of the Trust (the 
                 "Manager"). DST Systems, Inc. ("DST") serves as transfer agent
                 (the "Transfer Agent") and dividend disbursing agent for the
                 Class D shares of the Trust.  SEI Financial Services Company 
                 serves as distributor ("Distributor") of the Trust's shares. 
                 See "The Manager and Shareholder Servicing Agent," "The 
                 Adviser" and "Distribution."
                                                                              
                                                                              2
<PAGE>
 
 ................................................................................
    
 [SYMBOL APPEARS HERE] INVESTMENT
                        PHILOSOPHY     
    
 Believing that no single investment adviser can deliver outstanding performance
 in every investment category, only those advisers who have distinguished them-
 selves within their areas of specialization are selected to advise our mutual
 funds.     
 
 ................................................................................

                 
YOUR ACCOUNT     You may open an account with just $1,000 and make additional
AND DOING        investments with as little as $100. Redemptions of the
BUSINESS WITH    Portfolio's shares are made at net asset value per share. See
US               "Purchase of Shares" and "Redemption of Shares."     
                        
DIVIDENDS        Substantially all of the net investment income (exclusive   
                 of capital gains) of the Portfolio is distributed in    
                 the form of dividends that will be declared daily and     
                 paid monthly on the first Business Day of each month.    
                 Any realized net capital gain is distributed at least   
                 annually. Distributions are paid in additional shares      
                 unless you elect to take the payment in cash. See           
                 "Dividends."                   
                                                
                      
INFORMATION/     For more information about Class D shares, call SEI Financial
SERVICE          Services Company at 1-800-437-6016.                           
CONTACTS                                                                       
 
                                                                 3
<PAGE>
 

PORTFOLIO EXPENSES _____________________________________________________________
 
The purpose of the following table is to help you understand the various costs
and expenses that you, as a shareholder, will bear directly or indirectly in
connection with an investment in Class D shares.
 
SHAREHOLDER TRANSACTION EXPENSES (as a percentage of offering price)
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                       TREASURY
                                                      SECURITIES
                                                      PORTFOLIO
                                                      ----------
<S>                                                   <C>
Maximum Sales Charge Imposed On Purchases                None
Maximum Sales Charge Imposed on Reinvested Dividends     None
Redemption Fees/1/                                       None
- ----------------------------------------------------------------
</TABLE>
 
ANNUAL OPERATING EXPENSES (as a percentage of average net assets)
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                   TREASURY
                                                  SECURITIES
                                                  PORTFOLIO
                                                  ----------
<S>                                               <C>
Management/Advisory fees (after fee waiver)(/2/)     .36%
12b-1 fees(/3/)                                      .24%
Other Expenses (after fee waiver)                    .19%
- ------------------------------------------------------------
Total Operating Expenses (after fee waiver)(/2/)     .79%
- ------------------------------------------------------------
</TABLE>
1 A charge, currently $10.00, is imposed on wires of redemption proceeds of the
  Portfolio's Class D shares.
2 The Manager has agreed contractually to waive a portion of its fee in order
  to limit total operating expenses for Class D shares of the Portfolio to not
  more than .84% of its average daily net assets. Absent these contractual
  provisions, management/advisory fees, 12b-1 fees and total operating expenses
  as a percentage of net assets, respectively, would have been .45%, .29% and
  .93% for the Treasury Securities Portfolio. Additional information may be
  found under "The Manager and Shareholder Servicing Agent," "The Adviser" and
  "Distribution."
3 The 12b-1 fee shown reflects the Portfolio's current 12b-1 budget for
  reimbursement of expenses. The maximum 12b-1 fee payable by Class D shares
  for the Portfolio is .55%.
 
EXAMPLE
- --------------------------------------------------------------------------------
An investor in the Class D shares of
the Portfolio would pay the following
expenses on a $1,000 investment as-
suming (1) 5% annual return and (2)
redemption at the end of each time
period:

<TABLE>
<CAPTION>
                               1 YR. 3 YRS. 5 YRS. 10 YRS.
                               ----- ------ ------ -------
<S>                            <C>   <C>    <C>    <C>
TREASURY SECURITIES PORTFOLIO    $8   $25    $44     $98
- ----------------------------------------------------------
</TABLE>
 
THE EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF FUTURE EXPENSES.
ACTUAL EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN. The purpose of the
expense table is to assist the investor in understanding the various costs and
expenses that may be directly or indirectly borne by investors in Class D
shares of the Portfolio. A person who purchases shares through an account with
a financial institution may be charged separate fees by that institution. The
information set forth in the foregoing table and example relates only to the
Class D shares. The Portfolio also offers Class A shares, which are subject to
the same expenses, except there are no transfer agent costs, and there are
different distribution costs. Additional information may be found under "The
Manager and Shareholder Servicing Agent," "The Adviser" and "Distribution."
Long-term shareholders may pay more than the economic equivalent of the maximum
front-end sales charge otherwise permitted by the Rules of Fair Practice of the
National Association of Securities Dealers, Inc. (the "NASD").
 
                                                                    4
<PAGE>
 
FINANCIAL HIGHLIGHTS ___________________________________________________________
   
The following financial highlights for a share outstanding throughout each
year, insofar as they relate to each of the years in the period ended June 30,
1995, have been audited by Price Waterhouse LLP, independent public
accountants, whose report thereon was unqualified. This information should be
read in conjunction with the Trust's financial statements and notes thereto
which are included in the Statement of Additional Information under the heading
"Financial Information." Additional performance information is set forth in the
Trust's 1995 Annual Report to Shareholders, which is available upon request and
without charge by calling 1-800-437-6016.     
   
For a Class D Share Outstanding Throughout each Period     
 
<TABLE>   
<CAPTION>
                  Net Asset                                Distributions  Distributions                                   Ratio of
                     Value      Net        Realized and       from Net          from       Net Asset          Net Asset    Expenses
                   Beginning Investment     Unrealized       Investment   Realized Capital Value End Total      End of    to Average
                   of Period   Income   Gains on Securities    Income          Gains       of Period Return  Period (000) Net Assets
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                <C>       <C>        <C>                 <C>           <C>              <C>       <C>     <C>          <C>
Treasury Securities
- -----------------------------------------------------------------------------------------------------------------------------------
1995               1.00       0.05          --              (0.05)           --            1.00      4.69     9,798        0.79
1994(1)            1.00       0.01          --              (0.01)           --            1.00      0.50**      23        0.79*
- -----------------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                                                          Ratio of
                                                                                            Net
                                              Ratio of            Ratio of                Investment
                                                 Net             Expenses                   Income
                                             Investment         to Average                to Average
                                               Income            Net Assets                Net Assets
                                             to Average         (Excluding                (Excluding
                                             Net Assets          Waivers)                   Waivers)
- --------------------------------------------------------------------------------------------------------------------------
<S>                                          <C>                <C>                       <C>        
Treasury Securities
- --------------------------------------------------------------------------------------------------------------------------
1995                                         5.15                  0.89                        5.05
1994(1)                                      3.23*                 0.98*                       3.04*
- --------------------------------------------------------------------------------------------------------------------------
- --------------------------------------------------------------------------------------------------------------------------
</TABLE>    
   
(1)  Treasury Securities Class D commenced operations on May 4, 1994.     
   
 *  Annualized     
   
**  Not Annualized     
   
  Amounts designated as "--" are either $0 or have been rounded to $0.     
       
                                                                     5
<PAGE>
 
 ...............................................................................
[SYMBOL APPEARS HERE]    WHAT IS AN
                         INTERMEDIARY? 
     
 Any entity, such as a bank, broker-dealer, other financial institution, 
 association or organization which has entered into an arrangement
 with the Distributor to sell Class D shares to its customers.     
 
 ................................................................................

   
YOUR ACCOUNT AND DOING BUSINESS WITH US     
   
Class D shares of the Portfolio are sold on a continuous basis and may be
purchased directly from the Trust's Distributor, SEI Financial Services
Company. Shares may also be purchased through financial institutions, broker-
dealers, or other organizations which have established a dealer agreement or
other arrangement with SEI Financial Services Company ("Intermediaries"). For
more information about the following topics, see "Additional Information About
Doing Business with Us."     
- --------------------------------------------------------------------------------
                      
HOW TO BUY,      Class D shares of the Portfolio may be purchased through    
SELL AND         Intermediaries which provide various levels of shareholder   
EXCHANGE         services to their customers. Contact your Intermediary for   
SHARES THROUGH   information about the services available to you and for      
INTERMEDIARIES   specific instructions on how to buy, sell and exchange
                 shares. To allow for processing and transmittal of orders to 
                 the Transfer Agent on the same day, Intermediaries may impose
                 earlier cut-off times for receipt of purchase orders. Certain
                 Intermediaries may charge customer account fees. Information 
                 concerning shareholder services and any charges will be 
                 provided to the customer by the Intermediary. Certain of
                 these Intermediaries may be required to register as broker-
                 dealers under state law.     
                    The shares you purchase through an Intermediary may be
                 held "of record" by that Intermediary. If you want to
                 transfer the registration of shares beneficially owned by
                 you, but held "of record" by an Intermediary, you should call
                 the Intermediary to request this change.
 
                     
HOW TO BUY       Application forms can be obtained by calling 1-800-437-6016. 
SHARES FROM      Class D shares of the Portfolio are offered only to residents 
THE              of states in which the shares are eligible for purchase.      
DISTRIBUTOR                                                                    

Opening an ccount
                     
By Check         You may buy Class D shares by mailing a completed application 
                 and a check (or other negotiable bank instrument or money      
                 order) payable to "Class D (Treasury Securities Portfolio)".   
                 If you send a check that does not clear, the purchase will be  
                 canceled and you could be liable for any losses or fees        
                 incurred.                                                      
                                                                                
                     
By Fed Wire      To buy shares by Fed Wire call toll-free at 1-800-437-6016. 
                      
                                                                              
Automatic        You may systematically buy Class D shares through deductions  
Investment       from your checking or savings accounts, provided these        
Plan ("AIP")     accounts are maintained through banks which are part of the   
                 Automated Clearing House ("ACH") system. You may purchase     
                 shares on a fixed schedule (semi-monthly or monthly) with     
                 amounts as low as $25, or as high as $100,000. Upon notice,   
                 the amount you commit to the AIP may be changed or canceled   
                 at any time.                                                  
                                                                               

                                                                 6
<PAGE>
 
 ...............................................................................
[SYMBOL APPEARS HERE]    HOW DOES AN
                         EXCHANGE TAKE
                         PLACE?  
 When making an exchange, you authorize the sale of your shares of one or more
 Portfolios in order to purchase the shares of another Portfolio. In other
 words, you are executing a sell order and then a buy order. This sale of your
 shares is a taxable event which could result in a taxable gain or loss. 
 ................................................................................

                 The AIP is subject to account minimum initial purchase
                 amounts and minimum balance maintenance requirements.
 
EXCHANGING
SHARES
                                                                               
When Can You     Once payment for your shares has been received and accepted    
Exchange         (i.e., an account has been established), you may exchange      
Shares?           ---- 
                 some or all of your shares for Class D shares of SEI Tax       
                 Exempt Trust, SEI Daily Income Trust, SEI International Trust  
                 and SEI Institutional Managed Trust ("SEI Funds"). Exchanges   
                 are made at net asset value plus any applicable sales charge.  
                                                                                
                                                                                
When Do Sales    SEI Funds' portfolios that are not money market portfolios
Charges Apply    currently impose a sales charge on Class D shares. If you 
to an            exchange into one of these "non-money market" portfolios, you 
Exchange?        will have to pay a sales charge on any portion of your 
                 exchanged Class D shares for which you have not previously 
                 paid a sales charge.                         
                                                 
                    
                    If you previously paid a sales charge on your Class D
                 shares, no additional sales charge will be assessed when you
                 exchange those Class D shares for other Class D shares.     
                    
                    If you buy Class D shares of a "non-money market" fund and
                 you receive a sales charge waiver, you will be deemed to have
                 paid the sales charge for purposes of this exchange privilege.
                 In calculating any sales charge payable on your exchange, the
                 Trust will assume that the first shares you exchange are those
                 on which you have already paid a sales charge. Sales charge
                 waivers may also be available under certain circumstances
                 described in the SEI Funds' prospectuses.     

                    The Trust reserves the right to change the terms and
                 conditions of the exchange privilege discussed herein, or to
                 terminate the exchange privilege, upon 60 days' notice. The
                 Trust also reserves the right to deny an exchange request
                 made within 60 days of the purchase of a "non-money market"
                 portfolio.

Requesting an    To request an exchange, you must provide proper instructions
Exchange of      in writing to the Transfer Agent. Telephone exchanges will
Shares           also be accepted if you previously elected this option on
                 your account application.

                    In the case of shares held "of record" by an Intermediary
                 but beneficially owned by you, you should contact the
                 Intermediary who will contact the Transfer Agent and effect
                 the exchange on your behalf.
 
                                                                 7
<PAGE>
 
 ................................................................................
[SYMBOL APPEARS HERE]    WHAT IS A
                         SIGNATURE
                         GUARANTEE?
 
 A signature guarantee verifies the authenticity of your signature and may be
 obtained from any of the following: banks, brokers, dealers, certain credit
 unions, securities exchange or association, clearing agency or savings
 association. A notary public cannot provide a signature guarantee. 
 ...............................................................................
 
HOW TO SELL      To sell your shares, a written request for redemption in good
SHARES THROUGH   order must be received by the Transfer Agent. Valid written
THE              redemption requests will be effective on receipt. All
DISTRIBUTOR      shareholders of record must sign the redemption request. The
                 Transfer Agent may require that the signatures on written
By Mail          requests be guaranteed.
                   
                    For information about the proper form of redemption
                 requests, call 1-800-437-6016. You may also have the proceeds
                 mailed to an address of record or mailed (or sent by ACH) to
                 a commercial bank account previously designated on the
                 Account Application or specified by written instruction to
                 the Transfer Agent. There is no charge for having redemption
                 requests mailed to a designated bank account.     
                     
By Telephone     You may sell your shares by telephone if you previously elected
                 that option on the Account Application. You may have the
                 proceeds mailed to the address of record, wired or sent by ACH
                 to a commercial bank account previously designated on the
                 Account Application. Under most circumstances, payments will be
                 transmitted on the next Business Day following receipt of a
                 valid telephone request for redemption. Wire redemption
                 requests may be made by calling 1-800-437-6016. A wire
                 redemption charge (presently $10.00) will be deducted from the
                 amount of the redemption.     

Systematic       You may establish a systematic withdrawal plan for an account 
Withdrawal       with a $10,000 minimum balance. Under the plan, redemptions 
Plan ("SWP")     can be automatically processed from accounts (monthly, 
                 quarterly, semi-annually or annually) by check or by ACH with a
                 minimum redemption amount of $50.
                                                                               
Check-Writing    Check-Writing Service is offered free of charge to Class D     
                 shareholders in the Portfolio. You may redeem shares by        
                 writing checks on your account for $500 or more. Once you      
                 have signed and returned a signature card, you will receive a  
                 supply of checks. A check may be made payable to any person,   
                 and your account will continue to earn dividends until the     
                 check clears.                                                  
                                                                                
                    
                    Because of the difficulty of determining in advance the
                 exact value of your account, you may not use a check to close
                 your account. The checks are free, but your account will be
                 charged a fee for stopping payment of a check upon your
                 request or if the check cannot be honored because of
                 insufficient funds or other valid reasons.     
 
                                                                 8
<PAGE>
 
 ...............................................................................
 
[SYMBOL APPEARS HERE]    WHAT ARE 
                         INVESTMENT
                         OBJECTIVES AND
                         POLICIES?
    
 The Portfolio's investment objective is a statement of what it seeks to
 achieve. It is important to make sure that the investment objective matches
 your own financial needs and circumstances. The investment policies section
 spells out the types of securities in which the Portfolio invests.     
 ................................................................................
   
INVESTMENT OBJECTIVE AND POLICIES _________________________________________     
 
TREASURY         The investment objective of the Treasury Securities 
SECURITIES       Portfolio is to preserve principal value and maintain 
PORTFOLIO        a high degree of liquidity while providing current income.
                    
                    The Treasury Securities Portfolio invests exclusively in
                 U.S. Treasury obligations and repurchase agreements involving
                 such obligations. The repurchase agreement dealers selected for
                 the Treasury Securities Portfolio must meet certain
                 creditworthiness criteria established by Standard & Poor's
                 Corporation ("S&P").     
                     
                    There can be no assurance that the Portfolio will
                 achieve its investment objective.     
 
GENERAL INVESTMENT POLICIES ____________________________________________________
                   
                 In purchasing obligations, the Portfolio complies with the
                 requirements of Rule 2a-7 under the 1940 Act, as that Rule
                 may be amended from time to time. These requirements
                 currently provide that the Portfolio must limit its
                 investments to securities with remaining maturities of 397
                 days or less, and must maintain a dollar-weighted average
                 maturity of 90 days or less. In addition, the Portfolio may
                 only invest in securities (other than U.S. Government
                 Securities) rated in one of the two highest categories for
                 short-term securities by at least two nationally recognized
                 statistical rating organizations ("NRSROs") (or by one NRSRO
                 if only one NRSRO has rated the security), or, if unrated,
                 determined by the Adviser (in accordance with procedures
                 adopted by the Trust's Board of Trustees) to be of equivalent
                 quality to rated securities in which the Portfolio may
                 invest. Purchases of unrated securities and securities rated
                 by only one NRSRO will be ratified by the Trust's Board of
                 Trustees.     
                    
                    Securities rated in the highest rating category (e.g., A-1
                 by S&P) by at least two NRSROs (or, if unrated, determined by
                 the Adviser to be of comparable quality) are "first tier"
                 securities. Securities rated in the second highest rating
                 category (e.g., A-2 by S&P) by at least one NRSRO (or, if
                 unrated, determined by the Adviser to be of comparable
                 quality) are considered to be "second tier" securities. The
                 Portfolio will invest, in the aggregate, no more than 5% of
                 its assets in second tier securities, and any investment in
                 any one second tier security limited to the greater of 1% of
                 the Portfolio's total assets or $1 million.     
                        
                    The Portfolio may purchase securities on a when-issued or
                 delayed delivery basis.     
 
                                                                 9
<PAGE>

                     
                     For additional information regarding the Portfolio's
                  permitted investments, see "Description of Permitted
                  Investments and Risk Factors" and the Statement of
                  Additional Information.     
 
INVESTMENT LIMITATIONS _________________________________________________________
                     
                  The investment objective and investment limitations are
                  fundamental policies of the Portfolio. Fundamental policies
                  cannot be changed with respect to the Portfolio without the
                  consent of the holders of a majority of the Trust's or the
                  Portfolio's outstanding shares. It is a fundamental policy
                  of the Portfolio to use its best efforts to maintain a
                  constant net asset value of $1.00 per share.     
                     
                  The Portfolio may not:     
                     
                  1. Purchase securities of any issuer (except securities
                     issued or guaranteed by the U.S. Government, its agencies
                     or instrumentalities and any securities guaranteed
                     thereby) if as a result more than 5% of total assets of
                     the Portfolio (based on fair market value at the time of
                     investment) would be invested in the securities of such
                     issuer; provided, however, that the Portfolio may invest
                     up to 25% of its total assets without regard to this
                     restriction as permitted by Rule 2a-7.     
                     
                  2. Purchase any securities which would cause more than 25%
                     of the total assets of the Portfolio based on fair market
                     value at the time of such 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 does not apply to
                     investments in (a) domestic banks and (b) obligations
                     issued or guaranteed by the U.S. Government or its
                     agencies and instrumentalities.     
                     
                  3. Borrow money except for temporary or emergency purposes
                     and then only in an amount not exceeding 10% of the value
                     of the total assets of the Portfolio. This borrowing
                     provision is included solely to facilitate the orderly
                     sale of portfolio securities to accommodate substantial
                     redemption requests if they should occur and is not for
                     investment purposes. All borrowings will be repaid before
                     making additional investments for the Portfolio and any
                     interest paid on such borrowings will reduce the income
                     of the Portfolio.     
 
                  The foregoing percentage limitations will apply at the time
                  of the purchase of a security. Additional investment
                  limitations are set forth in the Statement of Additional
                  Information.
 
                                                                    10

<PAGE>
 
 ................................................
                
[SYMBOL APPEARS HERE]
                 INVESTMENT
                  ADVISER  
     
 A Portfolio's investment adviser manages 
 the investment activities and is responsible 
 for the performance of the Portfolio.  The 
 adviser conducts investment research, executes 
 investment strategies based on an assessment 
 of economic and market conditions, and determines 
 which securities to buy, hold or sell.     
 ................................................ 
 
THE MANAGER AND SHAREHOLDER SERVICING AGENT ____________________________________
                     
                  SEI Financial Management Corporation (the "Manager"), 680
                  East Swedesford Road, Wayne, Pennsylvania 19087-1658, a
                  wholly-owned subsidiary of SEI Corporation ("SEI"), provides
                  the Trust with overall management services, regulatory
                  reporting, all necessary office space, equipment, personnel
                  and facilities and for acting as shareholder servicing
                  agent.     
                     
                     The Manager is entitled to a fee, which is calculated
                  daily and paid monthly at an annual rate of .42% of the
                  average daily net assets of the Treasury Securities
                  Portfolio. The Manager has contractually agreed to waive a
                  portion of its fee in order to limit total operating
                  expenses on an annualized basis to not more than .84% of the
                  average daily net assets of the Class D shares of the
                  Portfolio on an annualized basis. For the fiscal year ended
                  June 30, 1995, the Portfolio paid management fees, after fee
                  waivers, of .33% of the Portfolio's average daily net
                  assets.     
                     
                     The Trust and DST Systems, Inc., 210 W. 10th Street,
                  Kansas City, Missouri, 64105, have entered into a separate
                  transfer agent agreement with respect to the Class D shares
                  of the Portfolio. Under this agreement, DST acts as the
                  transfer agent and dividend disbursing agent (the "Transfer
                  Agent") for the Class D shares of the Trust.     
 
THE ADVISER ____________________________________________________________________
                     
                  Wellington Management Company ("WMC" or the "Adviser") 75
                  State Street, Boston, Massachusetts 02109, serves as the
                  investment adviser to the Portfolio. The Adviser, under an
                  investment advisory agreement with the Trust, invests the
                  assets of the Portfolio and continuously reviews, supervises
                  and administers the Portfolio's investment program, subject to
                  the supervision of, and policies set by, the Trustees of the
                  Trust.

                     As of September 30, 1995, the Adviser had investment
                  management authority with respect to approximately $102.4
                  billion of assets, including the assets of the Trust, SEI
                  Daily Income Trust and a portfolio of Insurance Investment
                  Products Trust, each of which is an open-end money market
                  investment company administered by the Manager. WMC is a
                  professional investment counseling firm which provides
                  investment services to investment companies, employee benefit
                  plans, endowments, foundations, and other institutions and
                  individuals. The Adviser's predecessor organizations have
                  provided investment advisory services to investment companies
                  since 1933 and to investment counseling clients since 1960.
                  WMC is 

                                                                    11
<PAGE>
 
                  a Massachusetts general partnership, of which the following
                  persons are managing partners: Robert W. Doran, Duncan M.
                  McFarland and John B. Neff.
                     
                     John C. Keogh, Senior Vice President of the Adviser,
                  serves as portfolio manager to the Portfolio. He has been an
                  investment professional with the Adviser since 1983, and has
                  served as portfolio manager to the Treasury Securities
                  Portfolio since July 1994. Prior to that date, he assisted
                  the portfolio manager in the management of the Portfolio.
                      
                      
                     The Adviser is entitled to a fee which is calculated
                  daily and paid monthly, at an annual rate of .075% of the
                  combined average daily net assets of the Trust's Portfolio
                  up to $500 million, and .02% of such assets in excess of
                  $500 million. Such fees are allocated daily among the
                  Portfolios of the Trust on the basis of their relative net
                  assets. For the fiscal year ended June 30, 1995, the
                  Treasury Securities Portfolio paid advisory fees, after fee
                  waivers, of .03% of its relative net assets.     
                         
DISTRIBUTION ___________________________________________________________________
       
                    
                  SEI Financial Services Company (the "Distributor"), a
                  wholly-owned subsidiary of SEI, serves as each Portfolio's
                  distributor pursuant to a distribution agreement (the
                  "Distribution Agreement") with the Trust. Each Class of the
                  Trust has adopted a distribution plan (the "Class A Plan"
                  and "Class D Plan," and, collectively, the "Plans") pursuant
                  to Rule 12b-1 under the Investment Company Act of 1940 (the
                  "1940 Act").     
                     
                     The Class D Plan provides for reimbursement for expenses
                  incurred by the Distributor, in an amount not to exceed .30%
                  of the average daily net assets of each Portfolio on an
                  annualized basis, and provided those expenses are
                  permissible as to both type and amount under a budget
                  adopted by the Board of Trustees, including those who are
                  not interested persons and have no financial interest in the
                  Plan or any related agreement ("Qualified Trustees").
                  Currently, the budget (shown here as a percentage of average
                  daily net assets) for each Portfolio is set at an annual
                  rate of .04%.     
                     
                     Distribution-related expenses reimbursable to the
                  Distributor under the budget include those related to the
                  costs of the printing of reports, prospectuses, notices and
                  similar materials for persons other than current
                  shareholders, advertising expenses and promotional and sales
                  expenses including expenses for travel, communication and
                  compensation and benefits for sales personnel. Distribution
                  expenses not attributable to a specific portfolio of the
                  Trust are allocated among each of the portfolios of the
                  Trust based on the basis of their relative average net
                  assets. The Trust is not obligated to reimburse the
                  Distributor for any expenditures in excess of the approved
                  budget.     
                     
                     The Class D Plan, in addition to providing for the
                  reimbursement payments described above, provides for
                  payments to the Distributor at an annual rate of .25% of
                  each Portfolio's average daily net assets attributable to
                  Class D shares. This additional payment may be used to
                  compensate financial institutions that provide distribution-
                  related services to their customers. These payments are
                  characterized as "compensation," and are not directly tied
                  to expenses incurred by the Distributor; the payments the
                  Distributor     
 
                                                                    12
<PAGE>
 
                     
                  receives during any year may therefore be higher or lower
                  than its actual expenses. These additional payments
                  compensate the Distributor for its services in connection
                  with distribution assistance or the provision of shareholder
                  services, and some or all of it may be used to pay financial
                  institutions and intermediaries such as banks, savings and
                  loan associations, insurance companies, and investment
                  counselors, broker-dealers (including the Distributor's
                  affiliates and subsidiaries) for services or reimbursement
                  of expenses incurred in connection with distribution
                  assistance or the provision of shareholder services. If the
                  Distributor's expenses are less than its fees under the
                  Class D Plan, the Trust will still pay the full fee and the
                  Distributor will realize a profit, but the Trust will not be
                  obligated to pay in excess of the full fee, even if the
                  Distributor's actual expenses are higher. Currently, the
                  Distributor is taking this additional compensation payment
                  under the Class D Plan at a rate of .20% of the Portfolio's
                  average daily net assets, on an annualized basis,
                  attributable to Class D shares.     
                     
                     It is possible that an institution may offer different
                  classes of shares to its customers and thus receive
                  different compensation with respect to different classes.
                  These financial institutions may also charge separate fees
                  to their customers.     
                     
                     The Trust may execute brokerage or other agency
                  transactions through the Distributor for which the
                  Distributor may receive compensation.     
                     
                     The Distributor may, from time to time in its sole
                  discretion, institute one or more promotional incentive
                  programs, which will be paid for by the Distributor from the
                  sales charge it receives or from any other source available
                  to it. Under any such program, the Distributor will provide
                  promotional incentives, in the form of cash or other
                  compensation, including merchandise, airline vouchers, trips
                  and vacation packages, to all dealers selling shares of the
                  Portfolios. Such promotional incentives will be offered
                  uniformly to all shares of the Portfolios, and also will be
                  offered uniformly to all dealers, predicated upon the amount
                  of shares of the Portfolios sold by such dealer.     
                         
       
PERFORMANCE ____________________________________________________________________
       
                    
                  From time to time, the Portfolio may advertise "current
                  yield" and "effective compound yield." These figures will
                  fluctuate, as they are based on historical earnings and are
                  not intended to indicate future performance. The "current
                  yield" of the Portfolio refers to the income generated by an
                  investment over a seven-day period which is then
                  "annualized." That is, the amount of income generated by an
                  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 is assumed to be reinvested. The "effective
                  yield" will be slightly higher than the "current yield"
                  because of the compounding effect of this assumed
                  reinvestment.     
 
                                                                    13
<PAGE>
 
 ................................................................................
 
[SYMBOL APPEARS HERE]    TAXES

 You must pay taxes on your Portfolio's earnings, whether you take your
 payments in cash or additional shares.
 ................................................................................
 ................................................................................
 
[SYMBOL APPEARS HERE]    DISTRIBUTIONS
 
 The Portfolio distributes income dividends and capital gains. Income dividends
 represent the earnings from the Portfolio's investments; capital gains dis-
 tributions occur when investments in the Portfolio are sold for more than the
 original purchase price.
 ................................................................................
                    
                    The Portfolio may periodically compare its performance to
                 that of: (i) other mutual funds tracked by mutual fund rating
                 services (such as Lipper Analytical), financial and business
                 publications and periodicals; (ii) broad groups of comparable
                 mutual funds; (iii) unmanaged indices which may assume
                 investment of dividends but generally do not reflect
                 deductions for administrative and management costs; or (iv)
                 other investment alternatives.     
                    
                    For the Portfolio, the performance of the Class A shares
                 will normally be higher than the performance of the Class D
                 shares of the Portfolio because of additional distribution
                 and transfer agent expenses charged to Class D shares.     
 
TAXES __________________________________________________________________________
                    
                 The following summary of federal income tax consequences is
                 based on current tax laws and regulations, which may be
                 changed by legislative, judicial or administrative action. No
                 attempt has been made to present a detailed explanation of
                 the federal, state, or local income tax treatment of the
                 Portfolio or its shareholders. In addition, state and local
                 tax consequences of an investment in the Portfolio may differ
                 from the federal income tax consequences described below.
                 Accordingly, Shareholders are urged to consult their tax
                 advisers regarding specific questions as to federal, state
                 and local income taxes. Additional information concerning
                 taxes is set forth in the Statement of Additional
                 Information.     
                 
Tax Status of    The Portfolio is treated as a separate entity for federal 
the Portfolio:   tax purposes and is not combined with the Trust's other 
                 Portfolios. The Portfolio intends to continue to qualify for
                 the special tax treatment afforded regulated investment
                 companies under subchapter M of the Internal Revenue Code of
                 1986, as amended, so as to be relieved of federal income tax on
                 net investment company taxable income and net capital gains
                 (the excess of net long-term capital gain over net short-term
                 capital losses) distributed to shareholders.      
                     
Tax Status of    The Portfolio will distribute substantially all of its net 
Distributions:   investment income (including net short-term capital gains) 
                 and net capital gain to shareholders. Dividends from net
                 investment company taxable income are taxable to shareholders
                 as ordinary income, whether received in cash or in additional
                 shares, to the extent of the Portfolio's earning and profits.
                 Distributions of net capital gains are taxable to shareholders
                 as long-term capital gains regardless of how long shareholders
                 have held their shares and regardless of whether 
                 the distributions are received in cash or in additional 
                 shares. Dividends and     
 
                                                                 14
<PAGE>
 
                     
                  distributions of capital gains paid by the Portfolio do not
                  qualify for the dividends received deduction for corporate
                  shareholders. The Portfolio will make annual reports to
                  shareholders on the federal income tax status of all
                  distributions.     
                     
                     Dividends declared by the Portfolio in October, November
                  or December of any year and payable to shareholders of
                  record on a date in such a month will be deemed to have been
                  paid by the Portfolio and received by the shareholders on
                  December 31 of the year declared if paid by the Portfolio at
                  any time during the following January.     
                     
                     The Portfolio intends to make sufficient distributions
                  prior to the end of each calendar year, to avoid liability
                  for the federal excise tax applicable to regulated
                  investment companies.     
                         
                     
                     With respect to investments in U.S. Treasury STRIPS,
                  which are sold at original issue discount and thus do not
                  make periodic cash interest payments, the Portfolio will be
                  required to include as part of its current income the
                  imputed interest on such obligations even though the
                  Portfolio has not received any interest payments on such
                  obligations during that period. Because the Portfolio
                  distributes all of its net investment income to its
                  shareholders, the Portfolio may have to sell portfolio
                  securities to distribute such imputed income, which may
                  occur at a time when the Adviser would not have chosen to
                  sell such securities and, which may result in a taxable gain
                  or loss.     
                     
                      Investment income received by the Portfolio on direct
                  U.S. Government obligations is exempt from tax at the state
                  level when received directly by the Portfolio and may be
                  exempt, depending on the state, when received by a
                  shareholder as income dividends from the Portfolio provided
                  certain state-specific conditions are satisfied. Interest
                  received on repurchase agreements collateralized by U.S.
                  Government obligations normally is not exempt from state
                  taxation. The Portfolio will inform shareholders annually of
                  the percentage of income and distributions derived from
                  direct U.S. Government obligations. Shareholders should
                  consult their tax advisers to determine whether any portion
                  of the income dividends received from the Portfolio is
                  considered tax exempt in their particular states.     
                     
                     Each sale, exchange, or redemption of the Portfolio's
                  shares is a taxable transaction to the shareholder.     
 
ADDITIONAL 
INFORMATION ABOUT 
DOING BUSINESS 
WITH US ________________________________________________________________________

Business Days     You may buy, sell or exchange shares on days on which the
                  New York Stock Exchange is open for business ("Business
                  Days"). However, shares of the Portfolio cannot be purchased
                  by Federal Reserve wire on Federal holidays restricting wire
                  transfers. All purchase, exchange and redemption requests
                  received in "good order" will be effective as of the
                  Business Day received by the Transfer Agent as long as the
                  Transfer Agent receives the     
 
                                                                    15
<PAGE>
 
 ...............................................................................
 
[SYMBOL APPEARS HERE]    BUY, EXCHANGE AND 
                         SELL REQUESTS ARE IN 
                         "GOOD ORDER" WHEN:
 
 . The account number and portfolio name are shown
 . The amount of the transaction is specified in dollars or shares
 . Signatures of all owners appear exactly as they are registered on the account
 . Any required signature guarantees (if applicable) are included
 . Other supporting legal documents (as necessary) are present

 ................................................................................
   
                 order and, in the case of a purchase request, payment before
                 2:00 p.m., Eastern time. Otherwise the purchase will be
                 effective when payment is received. Broker-dealers may have
                 separate arrangements with the Trust regarding the sale of
                 Class D shares.

                      If an exchange request is for shares of a portfolio whose
                 net asset value is calculated as of a time earlier than 2:00
                 p.m., Eastern time, the exchange request will not be effective
                 until the next Business Day. Anyone who wishes to make an
                 exchange must have received a current prospectus of the
                 portfolio into which the exchange is being made before the
                 exchange will be effected.
                 
Minimum          The minimum initial investment in the Portfolio's Class D     
Investments      shares is $1,000; however, the minimum investment may be       
                 waived at the Distributor's discretion. All subsequent         
                 purchases must be at least $100 ($25 for payroll deductions    
                 authorized pursuant to pre-approved payroll deduction plans).  
                 The Trust reserves the right to reject a purchase order when   
                 the Distributor determines that it is not in the best          
                 interest of the Trust or its shareholders to accept such       
                 order.                                                         
                                                                                
Maintaining a    Due to the relatively high cost of handling small            
Minimum          investments, the Portfolio reserves the right to redeem, at  
Account          net asset value, the shares of any shareholder if, because of
Balance          redemptions of shares by or on behalf of the shareholder, the
                 account of such shareholder in the Portfolio has a value of  
                 less than $1,000, the minimum initial purchase amount.       
                 Accordingly, an investor purchasing shares of the Portfolio  
                 in only the minimum investment amount may be subject to such 
                 involuntary redemption if he or she thereafter redeems any of
                 these shares. Before the Portfolio exercises its right to    
                 redeem such shares and to send the proceeds to the           
                 shareholder, the shareholder will be given notice that the   
                 value of the shares in his or her account is less than the   
                 minimum amount and will be allowed 60 days to make an        
                 additional investment in that Portfolio in an amount that    
                 will increase the value of the account to at least $1,000.   
                 See "Purchase and Redemption of Shares" in the Statement of  
                 Additional Information for examples of when the right of     
                 redemption may be suspended.                                 
                    
                    At various times, the Portfolio may receive a request to
                 redeem shares for which it has not yet received good payment.
                 In such circumstances, redemption proceeds will be forwarded
                 upon collection of payment for the shares; collection of
                 payment may take 10 or more days. The Portfolio intends to
                 pay cash for all shares redeemed, but under abnormal
                 conditions that make payment in cash unwise, payment may be
                 made wholly or partly in portfolio securities with a market
                 value equal to the redemption price. In such cases, an
                 investor may incur brokerage costs in converting such
                 securities to cash.     
 
                                                                 16
<PAGE>
 
Net Asset Value   An order to buy 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 Transfer Agent (the    
                  "offering price"). No certificates representing shares will 
                  be issued. An order to sell shares will be executed at the  
                  net asset value per share next determined after receipt and 
                  effectiveness of a request for redemption in good order. Net
                  asset value per share is determined daily as of 2:00 p.m.,  
                  Eastern time on any Business Day. Payment to shareholders   
                  for shares redeemed will be made within 7 days after receipt
                  by the Transfer Agent of the redemption order.               
                                                                             
How the Net       The net asset value per share of the Portfolio is determined
Asset Value is    by dividing the total market value of its investments and  
Determined        other assets, less any liabilities, by the total number of 
                  outstanding shares of that Portfolio. Although the         
                  methodology and procedures for determining net asset value 
                  per share are identical for both classes of the Portfolio, 
                  the net asset value per share of one class may differ from 
                  that of another class because of the different distribution
                  fees charged to each class and the incremental transfer    
                  agent fees charged to Class D shares.                       
                  
Signature         The Transfer Agent may require that the signatures on the
Guarantees        written request be guaranteed. You should be able to obtain
                  a signature guarantee from a bank, broker, dealer, certain
                  credit unions, 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. The Trust
                  and the Transfer Agent reserve the right to amend these
                  requirements without notice.
                                                                             
Telephone/Wire    Redemption orders may be placed by telephone. Neither the  
Instructions      Trust nor the Transfer Agent 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. The Trust and the       
                  Transfer Agent will each employ reasonable procedures to   
                  confirm that instructions communicated by telephone are    
                  genuine, including requiring a form of personal            
                  identification prior to acting upon instructions received by
                  telephone and recording telephone instructions. If market  
                  conditions are extraordinarily active, or other            
                  extraordinary circumstances exist, and you experience      
                  difficulties placing redemption orders by telephone and may
                  wish to consider placing orders by other means.             
                  
Systematic        Please note that if withdrawals exceed income dividends,
Withdrawal Plan   your invested principal in the account will be depleted.
("SWP")           Thus, depending upon 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. To participate in the SWP, you must have your
                  dividends automatically reinvested. You may change or cancel
                  the SWP at any time, upon written notice to the Transfer
                  Agent.
 
                                                                    17
<PAGE>
 
How to Close      An account may be closed by providing written notice to the
your Account      Transfer Agent. You may also close your account by telephone
                  if you have previously elected telephone options on your
                  account application.
 
GENERAL INFORMATION ____________________________________________________________
                     
The Trust         SEI Liquid Asset Trust (the "Trust") was organized as a
                  Massachusetts business trust under a Declaration of Trust
                  dated July 20, 1981. The Declaration of Trust permits the
                  Trust to offer separate portfolios of shares and different
                  classes of each portfolio. Shareholders may purchase shares
                  in Portfolios through two separate classes: Class A and
                  Class D, which provide for variation in distribution and
                  transfer agent costs, voting rights, dividends, and the
                  imposition of a sales charge on the Class D shares. This
                  Prospectus offers the Class D shares of the Trust's Treasury
                  Securities Portfolio. In addition to the Portfolio, the
                  Trust consists of the following portfolios: Government
                  Securities Portfolio, Institutional Cash Portfolio, Prime
                  Obligation Portfolio, and Money Market Portfolio. Additional
                  information pertaining to the Trust may be obtained by
                  writing to SEI Financial Management Corporation, 680 East
                  Swedesford Road, Wayne, Pennsylvania 19087-1658, or by
                  calling 1-800-437-6016. All consideration received by the
                  Trust for shares of any Portfolio or class and all assets of
                  such Portfolio or class belong to that Portfolio or class
                  and are subject to liabilities related thereto.     
                     The Trust pays its expenses, including fees of its
                  service providers, audit and legal expenses, expenses of
                  preparing prospectuses, proxy solicitation material and
                  reports to shareholders, costs of custodial services and
                  registering the shares under federal and state securities
                  laws, pricing, insurance expenses, litigation and other
                  extraordinary expenses, brokerage costs, interest charges,
                  taxes and organization expenses.

Trustees of the   The management and affairs of the Trust are supervised by
Trust             the Trustees under the laws of the Commonwealth of
                  Massachusetts. The Trustees have approved contracts under
                  which, as described above, certain companies provide
                  essential management services to the Trust.
                     
Voting Rights     Each share held entitles the shareholder of record to one
                  vote. The shareholders of each portfolio or class of the
                  Trust will vote separately on matters relating solely to
                  that Portfolio or class. As a Massachusetts business trust,
                  the Trust is not required to hold annual meetings of
                  shareholders but approval will be sought for certain changes
                  in the operation of the Trust and for the election of
                  Trustees under certain circumstances. In addition, a Trustee
                  may be removed by the remaining Trustees or by shareholders
                  at a special meeting called upon written request of
                  shareholders owning at least 10% of the outstanding shares
                  of the Trust. In the event that such a meeting is requested,
                  the Trust will provide appropriate assistance and
                  information to the shareholders requesting the meeting.     
 
                                                                    18
<PAGE>
 
   
Reporting         The Trust issues unaudited financial statements semi-
                  annually and audited financial statements annually. The
                  Trust furnishes proxy statements and other reports to
                  shareholders of record.     
   
Shareholder       Shareholder inquiries should be directed to DST Systems,
Inquiries         Inc., P.O. Box 419240, Kansas City, MO 64141-6240.     
   
Dividends         The dividends of Class D shares will normally be lower than
                  of Class A shares of the Portfolio because of the additional
                  distribution and transfer agent expenses charged to Class D
                  shares. Substantially all of the net investment income
                  (exclusive of capital gains) of the Portfolio is distributed
                  in the form of dividends that will be declared daily and
                  paid monthly on the first Business Day of each month.
                  Currently, capital gains (the excess of net long-term
                  capital gain over net short-term capital loss) realized, if
                  any, are distributed at least annually.     
                     
                     Shareholders in the Portfolio automatically receive all
                  income dividends and capital gain distributions in
                  additional shares at the net asset value next determined
                  following the record date, unless the shareholder has
                  elected to take such payment in cash. Shareholders may
                  change their election by providing written notice to the
                  Manager at least 15 days prior to the distribution.     
                     
                     Dividends and distributions of the Portfolio are paid by
                  the Portfolio on a per-share basis. The value of each share
                  will be reduced by the amount of any such payment. If shares
                  are purchased shortly before the record date for a dividend
                  or the distribution of capital gains, a shareholder will pay
                  the full price for the shares and receive some portion of
                  the price back as a taxable dividend or distribution.     
   
Counsel and       Morgan, Lewis & Bockius LLP serves as counsel to the Trust.
Independent       Price Waterhouse LLP serves as the independent accountants
Accountants       to the Trust.     
   
Custodian and     CoreStates Bank, N.A., Broad and Chestnut Streets, P.O. Box
Wire Agent        7618, Philadelphia, Pennsylvania 19101 (the "Custodian"),
                  serves as custodian of the Trust's assets and as wire agent
                  of the Trust. The Custodian holds cash, securities and other
                  assets of the Trust as required by the 1940 Act.     
 
DESCRIPTION OF 
PERMITTED 
INVESTMENTS 
AND RISK FACTORS _______________________________________________________________
                     
                  The following is a description of certain of the permitted
                  investments for the Portfolio, and the associated risk
                  factors:     
                  
Repurchase        Repurchase agreements are agreements by which a Portfolio
Agreements        obtains a security and simultaneously commits to return the
                  security to the seller at an agreed upon price on an agreed
                  upon date. The custodian will hold the security as
                  collateral for the repurchase agreement. The Portfolio bears
                  a risk of loss in the event the other party defaults on its
                      
                                                                    19
<PAGE>
 
                     
                  obligations and the Portfolio is delayed or prevented from
                  exercising its right to dispose of the collateral or if the
                  Portfolio realizes a loss on the sale of the collateral. The
                  Portfolio will enter into repurchase agreements only with
                  financial institutions deemed to present minimal risk of
                  bankruptcy during the term of the agreement based on
                  established guidelines. Repurchase agreements are considered
                  loans under the 1940 Act.     
                     
                  
U.S. Treasury     U.S. Treasury Obligations consist of bills, notes and bonds
Obligations       issued by the U.S. Treasury and separately traded interest
                  and principal component parts of such obligations that are
                  transferable through the federal book-entry system known as
                  Separately Traded Registered Interest and Principal
                  Securities ("STRIPS").     
                     
                  STRIPS 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 permitted investments. See also "Taxes."     
                  
When-Issued and   When-issued or delayed delivery transactions involve the
Delayed           purchase of an instrument with payment and delivery taking
Delivery          place in the future. Delivery of and payment for these
Securities        securities may occur a month or more after the date of the
                  purchase commitment. The Portfolio will maintain with the
                  custodian a separate account, with liquid, high grade debt
                  securities or cash in an amount at least equal to these
                  commitments. The interest rate realized on these securities
                  is fixed as of the purchase date and no interest accrues to
                  the Portfolio before settlement. These securities are
                  subject to market fluctuation due to changes in market
                  interest rates, and it is possible that the market value at
                  the time of settlement could be higher or lower than the
                  purchase price if the general level of interest rates has
                  changed. Although the Portfolio generally purchases
                  securities on a when-issued or forward commitment basis with
                  the intention of actually acquiring securities, the
                  Portfolio may dispose of a when-issued security or forward
                  commitment prior to settlement if the Adviser deems it
                  appropriate to do so.     
 
                                                                    20
<PAGE>
 
SEI LIQUID ASSET TRUST

                Manager and Shareholder Servicing Agent:
                SEI FINANCIAL MANAGEMENT CORPORATION

                Distributor:
                SEI FINANCIAL SERVICES COMPANY

                Investment Adviser:
                WELLINGTON MANAGEMENT COMPANY

This Statement of Additional Information is not a Prospectus. It is intended to
provide additional information regarding the activities and operations of SEI
Liquid Asset Trust (the "Trust") and should be read in conjunction with the
Trust's Class A and Class D Prospectuses, each of which is dated October 30,
1995. Prospectuses may be obtained upon request and without charge by writing
the Trust's distributor, SEI Financial Services Company, 680 East Swedesford
Road, Wayne, Pennsylvania 19087-1658, or by calling 1-800-342-5734.

                               TABLE OF CONTENTS

<TABLE> 
<S>                                                                        <C> 
The Trust.................................................................  S-2
Description of Permitted Investments......................................  S-2
Commercial Paper Ratings..................................................  S-2
The Manager and Shareholder Servicing Agent...............................  S-7
The Adviser...............................................................  S-8
Distribution..............................................................  S-9
Trustees and Officers of the Trust........................................ S-10
Fundamental Investment Limitations........................................ S-13
Performance............................................................... S-16
Determination of Net Asset Value.......................................... S-17
Purchase and Redemption of Shares......................................... S-18
Shareholder Services (Class D Shares)..................................... S-19
Taxes..................................................................... S-20
Portfolio Transactions.................................................... S-22
Description of Shares..................................................... S-23
Limitation of Trustees' Liability......................................... S-23
Shareholder Liability..................................................... S-23
5% Shareholders........................................................... S-24
Experts................................................................... S-26
Financial Information..................................................... S-27
</TABLE> 

October 30, 1995


SEI-F-044-06
<PAGE>
 
THE TRUST


SEI Liquid Asset Trust (the "Trust") is a diversified, open-end management
investment company established as a Massachusetts business trust pursuant to a
Declaration of Trust dated July 20, 1981. The Declaration of Trust permits the
Trust to offer separate series ("portfolios") of units of beneficial interest
("shares") and separate classes of portfolios. Except for differences between
Class A and Class D shares pertaining to distribution plans, voting rights,
dividends and transfer agent expenses, each share of each portfolio represents
an equal proportionate interest in that portfolio with each other share of that
portfolio.

This Statement of Additional Information relates to the shares of the following
Portfolios: Treasury Securities, Government Securities, Prime Obligation,
Institutional Cash and Money Market Portfolios (each a "Portfolio" and,
together, the "Portfolios"), and any classes of the Portfolios.


DESCRIPTION OF PERMITTED INVESTMENTS

COMMERCIAL PAPER --  The Prime Obligation and Money Market Portfolios may invest
in commercial paper. Commercial paper is the term used to designate unsecured,
short-term promissory notes issued by corporations and other entities.

COMMERCIAL PAPER RATINGS

The following descriptions of commercial paper ratings have been published by
Standard & Poor's Corporation ("S&P"), Moody's Investors Service, Inc.
("Moody's"), Fitch Investors Service, Inc. ("Fitch"), Duff & Phelps, Inc.
("Duff"), Thomson BankWatch ("Thomson") and IBCA Limited and IBCA, Inc.
(together, "IBCA").

Commercial paper rated A by S&P is regarded by S&P as having the greatest
capacity for timely payment. Issues rated A are further refined by use of the
numbers 1+, 1 and 2 to indicate the relative degree of safety. Issues rated A-1+
are those with an "overwhelming degree" of credit protection. Those rated A-1,
the highest rating category, reflect a "very strong" degree of safety regarding
timely payment. Those rated A-2, the second highest rating category, reflect a
safety regarding timely payment, but not as high as A-1.

Moody's employs two designations, judged to be high grade commercial paper, to
indicate the relative repayment capacity of rated issuers as follows:

     Prime-1  Superior Quality
     Prime-2  Strong Quality

The rating Fitch-1 (Highest Grade) is the highest commercial paper rating
assigned by Fitch. Paper rated Fitch-1 is regarded as having the strongest
degree of assurance for timely payment.

                                      S-2
<PAGE>
 
The rating Fitch-2 (Very Good Grade) is the second highest commercial paper
rating assigned by Fitch which reflects an assurance of timely payment only
slightly lower in degree than the strongest issues.

The rating Duff-1 is the highest commercial paper rating assigned by Duff. Paper
rated Duff-1 is regarded as having very high certainty of timely payment with
excellent liquidity factors which are supported by ample asset protection. Risk
factors are minor. Paper rated Duff-2, the second highest rating category, is
regarded as having good certainty of timely payment, good access to capital
markets and sound liquidity factors and company fundamentals. Risk factors are
small.

The rating TBW-1 is the highest commercial paper rating assigned by Thomson.
Paper rated TBW-1 indicates a very high likelihood that principal and interest
will be paid on a timely basis. The rating TBW-2 is the second-highest rating
assigned category by Thomson. The relative degree of safety regarding timely
repayment of principal and interest is strong. However, the relative degree of
safety is not as high as for issues rated TBW-1.

The designation A1, the highest rating category established by IBCA, indicates
that the obligation is supported by a very strong capacity for timely repayment.
Those obligations rated A1+ are supported by the highest capacity for timely
repayment. Obligations rated A2, the second highest rating category, are
supported by a strong capacity for timely repayment, although such capacity may
be susceptible to adverse changes in business, economic or financial conditions.

DESCRIPTION OF MUNICIPAL AND CORPORATE BOND RATINGS --  Bonds rated AAA have the
highest rating S&P assigns to a debt obligation. Such a rating indicates an
extremely strong capacity to pay principal and interest. Bonds rate AA also
qualify as high-quality debt obligations. Capacity to pay principal and interest
is very strong, and in the majority of instances, they differ from AAA issues
only in small degree.

Bonds which are rated Aaa by Moody's are judged to be the best quality. They
carry the smallest degree of investment risk and are generally referred to as
"gilt edge." Interest payments are protected by a large, or an exceptionally
sable, 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. Bonds rated Aa are judged by
Moody's to be of high quality by all standards. Together with bonds rated Aaa,
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 risks appear
somewhat larger than in Aaa securities.

Bonds rated AAA are judged by Fitch to be strictly high grade, broadly
marketable, suitable for investment by trustees and fiduciary institutions
liable to but slight market fluctuation other than through changes in the money
rate. The prime feature of an AAA bond is a showing of earnings

                                      S-3
<PAGE>
 
several times or many times interest requirements, with such stability of
applicable earnings that safety is beyond reasonable question whatever changes
occur in conditions. Bonds rate AA are judged by Fitch to be of safety virtually
beyond question and are readily salable, whose merits are not unlike those of
the AAA class, but whose margin of safety is less strikingly broad. The issue
may be the obligation of a small company, strongly secured but influenced as to
rating by the lesser financial power of the enterprise and more local type
market.

Bonds rated Duff-1 are judged by Duff to be of the highest credit quality with
negligible risk factors; only slightly more than U.S. Treasury debt. Bonds rated
Duff-2, are judged by Duff to be of high credit quality with strong protection
factors. Risk is modest but may vary slightly from time to time because of
economic conditions.

Bonds which are rated AAA are judged by Thomson to be of the highest category.
The ability to repay principal and interest on a timely basis is very high.
Bonds rated AA are judged by Thomson to be of a superior ability to repay
principal and interest on a timely basis, with limited incremental risk compared
to issues rated in the highest category.

Obligations rated AAA by IBCA have 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. Obligations for which there is a very
low expectation of investment risk are rated AA by IBCA. 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.

FOREIGN SECURITIES -- The Money Market Portfolio may invest U.S. dollar
denominated obligations of foreign branches of U.S. commercial banks and of U.S.
and London branches of foreign banks. These instruments may subject the
Portfolio 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.

GNMA SECURITIES -- The Prime Obligation, Money Market and Government Securities
Portfolios may invest in securities issued by the Government National Mortgage
Association ("GNMA"), a wholly-owned U.S. Government Securities corporation
which guarantees the

                                      S-4
<PAGE>
 
timely payment of principal and interest. However, any premiums paid to purchase
these instruments are not subject to GNMA guarantees. The market value and
interest yield of these instruments can vary due to market interest rate
fluctuations and early prepayments of underlying mortgages.

These securities represent ownership in a pool of Federally insured mortgage
loans. GNMA certificates consist of underlying mortgages with a maximum maturity
of 30 years. However, due to scheduled and unscheduled principal payments, GNMA
certificates have a shorter average maturity and, therefore, less principal
volatility than a comparable 30-year mortgage-backed bond. Since prepayment
rates vary widely, it is not possible to accurately predict the average maturity
of a particular GNMA pool. The scheduled monthly interest and principal payments
relating to mortgages in the pool will be "passed through" to investors. GNMA
securities differ from conventional bonds in that principal is paid back to the
certificate holders over the life of the loan rather than at maturity. As a
result, the Portfolios will receive monthly scheduled payments of principal and
interest. In addition, the Portfolios may receive unscheduled principal payments
representing prepayments on the underlying mortgages. Any prepayments will be
reinvested at the then prevailing interest rate.

Although GNMA certificates may offer yields higher than those available from
other types of U.S. Government Securities, GNMA certificates may be less
effective than other types of securities as a means of "locking in" attractive
long-term rates because of the prepayment feature. Due to this prepayment
feature, GNMA certificates tend not to increase in value as much as most other
debt securities when interest rates decline.

REPURCHASE AGREEMENTS -- The Treasury Securities, Government Securities, Prime
Obligation, and Money Market Portfolios may enter into repurchase agreements,
which are agreements under which securities are acquired from a securities
dealer or bank subject to resale on an agreed upon date and at an agreed upon
price which includes principal and interest. The Portfolio involved bears a risk
of loss in the event that the other party to a repurchase agreement defaults on
its obligations and the Portfolio is delayed or prevented from exercising its
rights to dispose of the securities held as collateral. Wellington Management
Company ("WMC" or the "Adviser") enters into repurchase agreements only with
financial institutions which it deems to present minimal risk of bankruptcy
during the term of the agreement based on guidelines established by and
periodically reviewed by the Board of Trustees. These guidelines currently
permit the Portfolios to enter into repurchase agreements only with approved
banks and primary securities dealers, as recognized by the Federal Reserve Bank
of New York, which have minimum net capital of $100 million, or with a member
bank of the Federal Reserve System. Repurchase agreements are considered to be
loans collateralized by the underlying security. Repurchase agreements entered
into by the Portfolios will provide that the underlying security at all times
shall have a value at least equal to 102% of the price stated in the agreement.
This underlying security will be marked to market daily. The Adviser monitors
compliance with this requirement. Under all repurchase agreements entered into
by the Portfolios, CoreStates Bank, N.A. (the "Custodian") or its agent must
take possession of the underlying collateral. However, if the seller defaults,
the Portfolios could realize a loss on the sale of the underlying security to

                                      S-5
<PAGE>
 
the extent the proceeds of the sale are less than the resale price. In addition,
even though the Bankruptcy Code provides protection for most repurchase
agreements, if the seller should be involved in bankruptcy or insolvency
proceedings, the Portfolios may incur delay and costs in selling the security
and may suffer a loss of principal and interest if the Portfolios are treated as
an unsecured creditor.

U.S. GOVERNMENT AGENCY OBLIGATIONS -- The Government Securities, Prime
Obligation, and Money Market Portfolios may invest in agencies of the United
States Government which consist of obligations issued by, among others, the
Export Import Bank of the United States, Farmers Home Administration, Federal
Farm Credit Bank, Federal Housing Administration, Government National Mortgage
Association, Maritime Administration, Small Business Administration, and The
Tennessee Valley Authority. The Government Securities, Prime Obligation, and
Money Market Portfolios may purchase securities guaranteed by the Government
National Mortgage Association, which represent participation in Veterans
Administration and Federal Housing Administration backed mortgage pools.
Obligations of instrumentalities of the United States Government include
securities issued by, among others, Federal Home Loan Banks, Federal Home Loan
Mortgage Corporation, Federal Intermediate Credit Banks, Federal Land Banks,
Federal National Mortgage Association and the United States Postal Service. Some
of these securities are supported by the full faith and credit of the United
States Treasury (e.g., Government National Mortgage Association), others are
supported by the right of the issuer to borrow from the Treasury, and still
others are supported only by the credit of the instrumentality (e.g., Federal
National Mortgage Association). Guarantees of principal by agencies or
instrumentalities of the U.S. Government may be a guarantee of payment at the
maturity of the obligation so that in the event of a default prior to maturity
there might not be a market and thus no means of realizing the value of the
obligation prior to maturity. The Portfolios do not intend to purchase
securities issued by the World Bank, the Inter-American Development Bank or the
Asian Development Bank.

VARIABLE OR FLOATING RATE INSTRUMENTS -- Each Portfolio may invest in variable
or floating rate instruments, which may involve a demand feature and may include
variable amount master demand notes which may or may not be backed by bank
letters of credit. Variable or floating rate instruments bear interest at a rate
which varies with changes in market rates. The holder of an instrument with a
demand feature may tender the instrument back to the issuer at par prior to
maturity. A variable amount master demand note is issued pursuant to a written
agreement between the issuer and the holder, its amount may be increased by the
holder or decreased by the holder or issuer, it is payable on demand, and the
rate of interest varies based upon an agreed formula. The quality of the
underlying credit must, in the opinion of the Adviser, be equivalent to the
quality ratings applicable to permitted investments for each Portfolio. The
Adviser will monitor on an ongoing basis the earning power, cash flow, and
liquidity ratios of the issuers of such instruments and will similarly monitor
the ability of an issuer of a demand instrument to pay principal and interest on
demand.

                                      S-6
<PAGE>
 
THE MANAGER AND SHAREHOLDER SERVICING AGENT

The Management Agreement, dated October 31, 1986, provides that SEI Financial
Management Corporation (the "Manager") shall not be liable for any error of
judgment or mistake of law or for any loss suffered by the Trust in connection
with the matters to which the Management Agreement relates, except a loss
resulting from willful misfeasance, bad faith or gross negligence on the part of
the Manager in the performance of its duties or from reckless disregard of its
duties and obligations thereunder.

The Management Agreement, unless terminated sooner as provided therein, shall
remain in effect for two years after the date of the Agreement and shall
continue in effect for successive periods of one year if such continuance is
specifically approved at least annually (i) by the Trustees of the Trust and
(ii) by the vote of a majority of the Trustees of the Trust who are not parties
to the Management Agreement or interested persons (as that term is defined in
the Investment Company Act of 1940, as amended (the "1940 Act")) of any such
party, cast in person at a Board of Trustees meeting called for the purpose of
voting on such approval. The Agreement may be terminated at any time and without
penalty by the Trustees of the Trust or by the Manager on not less than 30 days'
nor more than 60 days' written notice to the other party thereto. Any notice
under the Management Agreement shall be given in writing, addressed and
delivered, or mailed postpaid, to the other party at the designated mailing
address of such party.

The Manager, 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, Pennsylvania 19087-1658. Alfred P. West, Jr., Henry
H. Greer and Carmen V. Romeo constitute the Board of Directors of the Manager.
Mr. West serves as the Chairman of the Board of Directors, President and Chief
Executive Officer of SEI. Mr. Greer serves as Director, President and Chief
Operating Officer of SEI. 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 Manager also serves as manager/administrator to these other
mutual funds: SEI Daily Income Trust; SEI Tax Exempt Trust; SEI Index Funds; SEI
Institutional Managed Trust; SEI International Trust; Stepstone Funds; The
Compass Capital Group; FFB Lexicon Funds; The Advisors' Inner Circle Fund; The
Pillar Funds; CUFUND; STI Classic Funds; CoreFunds, Inc.; First American Funds,
Inc.; First American Investment Funds, Inc.; Rembrandt Funds(R); The Arbor Fund;
1784 Funds; The PBHG Funds, Inc.; Marquis/sm/ Funds; Morgan Grenfell Investment
Trust; Inventor Funds; Insurance Investment Products Trust; Bishop Street Funds;
Conestoga Family of Funds; The Achievement Funds Trust; CrestFunds, Inc.(C); and
STI Classic Variable Trust.

The Manager has agreed contractually to waive its fee in order to limit
operating expenses of the Portfolios to not more than .44% of average net assets
of the Class A shares and .84% of average net assets of the Class D shares. As
to the Institutional Cash Portfolio only, this waiver is voluntary and may be
terminated at any time. Shareholders will be notified in advance if and when the
waiver is terminated. The Manager will not be required to bear expenses of any

                                      S-7
<PAGE>
 
     Portfolio to an extent which would result in the Portfolio's inability to
     qualify as a regulated investment company under provisions of the Internal
     Revenue Code of 1986, as amended (the "Code"). The term "expenses" is
     defined in such laws or regulations, and generally excludes brokerage
     commissions, distribution expenses, taxes, interest, litigation and
     extraordinary expenses.

     For the fiscal years ended June 30, 1993, 1994 and 1995, the Portfolios
     paid fees to the Manager as follows:

<TABLE>
<CAPTION>
========================================================================================================
                                 MANAGEMENT FEES PAID                   MANAGEMENT FEES WAIVED
                       --------------------------------------------------------------------------------- 
                            1993        1994         1995          1993        1994         1995
- --------------------------------------------------------------------------------------------------------
<S>                      <C>         <C>         <C>            <C>         <C>         <C>
Treasury Securities      $9,581,000  $7,482,000  $4,160,873.22  $1,353,000  $1,252,000  $1,226,700.66
Portfolio
- -------------------------------------------------------------------------------------------------------- 
Prime Obligation         $6,308,000  $4,330,000  $3,352,356.97  $  890,000  $  763,000  $  884,036.50
Portfolio
- -------------------------------------------------------------------------------------------------------- 
Government               $1,997,000  $1,505,000  $  794,731.78  $  278,000  $  264,000  $  221,071.85
Securities Portfolio
- -------------------------------------------------------------------------------------------------------- 
Institutional Cash       $   14,000  $   10,000  $    7,878.60  $      0    $      0    $         0
Portfolio
- --------------------------------------------------------------------------------------------------------
Money Market                  *          *              *            *           *             *
Portfolio
========================================================================================================
</TABLE>

* Not in operation during such period.

     THE ADVISER

     The Trust and Wellington Management Company ("WMC") have entered into an
     investment advisory agreement (the "Advisory Agreement") dated October 30,
     1985. The Advisory Agreement provides that the Adviser shall not be
     protected against any liability to the Trust or its shareholders by reason
     of willful misfeasance, bad faith or gross negligence on its part in the
     performance of its duties or from reckless disregard of its obligations or
     duties thereunder.

     The continuance of the Advisory Agreement after the first two (2) years of
     the Agreement must be specifically approved at least annually (i) by the
     vote of a majority of the outstanding shares of that Portfolio or by the
     Trustees, and (ii) by the vote of a majority of the Trustees who are not
     parties to the Advisory Agreement or "interested persons" of any party
     thereto, cast in person at a meeting called for the purpose of voting on
     such approval. The Advisory Agreement will terminate automatically in the
     event of its assignment, and is terminable at any time without penalty by
     the Trustees of the Trust or, with respect to a Portfolio, by a majority of
     the outstanding shares of that Portfolio, on not less than 30 days' nor
     more than 60 days' written notice to the Adviser, or by the Adviser on 90
     days' written notice to the Trust.
                                       S-8
<PAGE>
 
WMC, Adviser to the Portfolios, is entitled to a fee for its investment advisory
services, which is calculated daily and paid monthly at the following annual
rates: .075% of the Trust's daily net assets up to $500 million, and .02% of the
Trust's daily net assets in excess of $500 million. The fee is allocated among
the Portfolios based upon their relative net assets.

For the fiscal years ended June 30, 1993, 1994 and 1995 the Portfolios paid WMC
advisory fees as follows:

<TABLE>
<CAPTION>
========================================================================= 
                                             ADVISORY FEES PAID
                                   --------------------------------------  
                                        1993       1994        1995
- ------------------------------------------------------------------------- 
 <S>                                 <C>         <C>        <C>
 Treasury Securities Portfolio       $ 603,000   $ 514,000   $395,983.29
- -------------------------------------------------------------------------  
 Prime Obligation Portfolio          $ 397,000   $ 299,000   $311,042.13
- -------------------------------------------------------------------------  
 Government Securities Portfolio     $ 126,000   $ 103,000   $ 74,686.68
- -------------------------------------------------------------------------  
 Institutional Cash Portfolio        $   1,000   $      0    $       0
- ------------------------------------------------------------------------- 
 Money Market Portfolio                  *           *             *
========================================================================= 
</TABLE>

*  Not in operation during such period.


DISTRIBUTION

The Trust has adopted a Distribution Agreement for the Portfolios dated November
29, 1982. The Trust has also adopted a Class A Distribution Plan (the "Class A
Plan") and a Class D Distribution Plan (the "Class D Plan" and, together with
the Class A Plan, the "Plans") for the Portfolios in accordance with Rule 12b-1
under the 1940 Act, which regulates the circumstances under which an investment
company may directly or indirectly bear expenses relating to the distribution of
its shares. In this regard, the Board of Trustees has determined that the Plans
and the Distribution Agreement are in the best interests of the Shareholders.
Continuance of the Plans must be approved annually by a majority of the Trustees
of the Trust, and by a majority of the trustees who are not "interested persons"
of the Trust as that term is defined in the 1940 Act, and who have no direct or
indirect financial interest in the operation of a Distribution Plan or in any
agreements related thereto ("Qualified Trustees"). The Plans require that
quarterly written reports of amounts spent under the Plans and the purposes of
such expenditures be furnished to and reviewed by the Trustees. The Plans may
not be amended to increase materially the amount which may be spent thereunder
without approval by a majority of the outstanding shares of the Portfolio
affected. All material amendments of the Plans will require approval by a
majority of the Trustees of the Trust and of the Qualified Trustees.

In addition to the reimbursement of allowable expenses, the Class D Plan
provides that the Trust will pay the Distributor a fee on the Class D shares of
the Portfolio. The Distributor may use this fee for (i) compensation for its
services in connection with distribution assistance or

                                      S-9
<PAGE>
 
provision of shareholder services or (ii) payments to financial institutions and
intermediaries such as banks, savings and loan associations, insurance companies
and investment counselors, broker-dealers and the Distributor's affiliates and
subsidiaries as compensation for services or reimbursement of expenses incurred
in connection with distribution assistance or provision of shareholder services.

For the fiscal year ended June 30, 1995, the Portfolios incurred the following
distribution expenses:

<TABLE>
<CAPTION>
=================================================================================================================================== 

 PORTFOLIO/CLASS        TOTAL     BASIS    AMOUNT PAID TO 3RD      SALES       ADVERTISING    PROSPECTUS         COSTS       OTHER
                      ($AMOUNT)   POINTS   PARTIES BY SFS FOR     EXPENSES     ($ AMOUNT)     PRINTING &       ASSOCIATED
                                           DISTRIBUTOR RELATED    ($AMOUNT)                  MAILING COSTS        WITH
                                                 SERVICES                                        (NEW         REGISTRATION
                                                ($ AMOUNT)                                    SHAREHOLDERS        FEES
                                                                                                  ONLY          ($AMOUNT)
                                                                                               ($ AMOUNT)
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                 <C>           <C>      <C>                   <C>           <C>           <C>              <C>            <C>
 CLASS A
- ------------------------------------------------------------------------------------------------------------------------------------

  Treasury          $570,122.85     .04%            $0           $570,122.85       $0              $0              $0         $0
 Securities
- ------------------------------------------------------------------------------------------------------------------------------------

  Government        $106,233.11     .04%            $0           $106,233.11       $0              $0              $0         $0
  Securities 
- ------------------------------------------------------------------------------------------------------------------------------------

  Prime             $435,935.89     .04%            $0           $435.935.89       $0              $0              $0         $0
  Obligation
- ------------------------------------------------------------------------------------------------------------------------------------

  Institutional     $     0           0%            $0           $    0            $0              $0              $0         $0
  Cash
- ------------------------------------------------------------------------------------------------------------------------------------

  Money Market            *           *              *                *             *               *               *          *
- ------------------------------------------------------------------------------------------------------------------------------------

 CLASS D
- ------------------------------------------------------------------------------------------------------------------------------------

  Treasury          $ 10,981.35     .20%            $0           $ 10,981.35       $0              $0              $0         $0
  Securities
====================================================================================================================================

</TABLE>

*  Not in operation during such period.


TRUSTEES AND OFFICERS OF THE TRUST

The Trustees and Executive Officers of the Trust and their principal occupations
for the last five years are set forth below. Each may have held other positions
with the named companies during that period. Unless otherwise noted, the
business address of each Trustee and Executive Officer is SEI Financial
Management Corporation, 680 East Swedesford Road, Wayne, Pennsylvania 19087-
1658. Certain officers of the Trust also serve as trustees and/or officers of
SEI Daily Income Trust, SEI Institutional Managed Trust, SEI Tax Exempt Trust,
SEI Index Funds, SEI International Trust, Stepstone Funds, The Compass Capital
Group, FFB Lexicon Funds, The Advisors' Inner Circle Fund, The Pillar Funds,
CUFUND, STI Classic Funds, CoreFunds, Inc., First American Funds, Inc., First
American Investment Funds, Inc., Rembrandt Funds(R), The Arbor Fund, 1784 Funds,
The PBHG Funds, Inc., Bishop Street Funds, Conestoga Family of Funds, Insurance
Investment Products Trust, Marquis/sm/ Funds, Morgan Grenfell Investment

                                      S-10
<PAGE>
 
Trust, The Achievement Funds Trust, CrestFunds, Inc., STI Classic Variable
Trust, and Inventor Funds, open-end management investment companies which are
managed by SEI Financial Management Corporation and/or distributed by SEI
Financial Services Company.

ROBERT A. NESHER - Chairman of the Board of Trustees* - Retired since 1994.
Executive Officer - Executive Vice President of SEI 1986-1994. Director and
Executive Vice President of the Manager and Executive Vice President of the
Distributor 1981-1994.

RICHARD F. BLANCHARD - Trustee** - P.O. Box 76, Canfield Road, Convent Station,
NJ 07961. Private Investor. Director of AEA Investors Inc. (acquisition and
investment firm) June 1981-86, Director of Baker Hughes Corp. (oil service
company) 1976-88. Director of Imperial Clevite Industries (transportation
equipment company) 1981-87. Executive Vice President of American Express Company
(financial services company), responsible for the investment function, before
June 1981.

WILLIAM M. DORAN - Trustee* - 2000 One Logan Square, Philadelphia, PA 19103.
Partner of Morgan, Lewis & Bockius LLP, counsel to the Trust, Manager and
Distributor, Director and Secretary of SEI and Secretary of the Manager and
Distributor.

F. WENDELL GOOCH - Trustee** - P.O. Box 190, Paoli, IN 47454. President, Orange
County Publishing Co., Inc., since October 1981. Publisher of the Paoli News and
the Paoli Republican and Editor of the Paoli Republican since January 1981,
President, H & W Distribution, Inc. since July 1984. Executive Vice President,
Trust Department, Harris Trust and Savings Bank and Chairman of the Board of
Directors of The Harris Trust Company of Arizona before January 1981.

FRANK E. MORRIS - Trustee** - 105 Walpole Street, Dover, MA 02030. Retired since
1990. Peter Drucker Professor of Management, Boston College, 1989-1990.
President, Federal Reserve Bank of Boston, 1968-1988.

JAMES M. STOREY - Trustee** - Ten Post Office Square, Boston, MA 02109. Partner,
Dechert Price & Rhodes (law firm).

DAVID G. LEE - President, Chief Executive Officer - Senior Vice President of the
Manager and Distributor since 1993. Vice President of the Manager and
Distributor 1991-1993. President, GW Sierra Trust Funds before 1991.

CARMEN V. ROMEO - Treasurer, Assistant Secretary - Director, Executive Vice
President, Chief Financial Officer and Treasurer of SEI since 1977. Director and
Treasurer of the Manager and Distributor since 1981.

SANDRA K. ORLOW - Vice President, Assistant Secretary - Vice President and
Assistant Secretary of the Manager and Distributor since 1988. Corporate Legal
Assistant, Omni Exploration (oil and gas investment) prior to 1983.

                                      S-11
<PAGE>
 
ROBERT B. CARROLL - Vice President, Assistant Secretary - Vice President,
Assistant Secretary of SEI Corporation, the Manager and Distributor since 1994.
United States Securities and Exchange Commission, Division of Investment
Management, 1990-1994. Associate, McGuire, Woods, Battle & Boothe (law firm)
prior to 1990.

TODD CIPPERMAN - Vice President, Assistant Secretary - Vice President, Assistant
Secretary of SEI, the Administrator and Distributor since May, 1995, Associate,
Dewey Ballantine (law firm) 1994-1995, Associate, Winston & Strawn (law firm)
1991-1995.

JOSEPH LYDON - Vice President, Assistant Secretary - Director of Business
Administration, SEI Corporation since April, 1995; Vice President of Fund Group,
Vice President of the Advisor -Dreman Value Management, LP, President of Dreman
Financial Services, Inc. from 1989 to 1995.

KATHRYN L. STANTON - Vice President, Assistant Secretary - Vice President,
Assistant Secretary of SEI Corporation, the Manager and Distributor since 1994;
Associate, Morgan, Lewis & Bockius LLP (law firm), 1989 to 1994.

KEVIN P. ROBINS - Vice President, Assistant Secretary - Senior Vice President
and General Counsel of SEI and the Distributor since 1994. Vice President and
Assistant Secretary of the Manager and Distributor 1992-1994. Associate, Morgan,
Lewis & Bockius LLP (law firm) prior to 1992.

JEFFREY A. COHEN - Controller, Assistant Secretary - SEI Corporation, 1991 to
present. Senior Accountant, Price Waterhouse, 1988 to 1991.

RICHARD W. GRANT - Secretary - 2000 One Logan Square, Philadelphia, PA 19103.
Partner, Morgan, Lewis & Bockius LLP, counsel to the Trust, Manager and
Distributor.

JOHN H. GRADY, JR. - Assistant Secretary - 1800 M Street, N.W., Washington,
D.C., 20036, Partner, since 1995 and Associate, 1993-1995, Morgan, Lewis &
Bockius LLP, counsel to the Trust, Manager and Distributor; Associate, Ropes &
Gray, 1988 to 1993.

_______________________________
*Messrs. Nesher and Doran are Trustees who may be deemed to be "interested
persons" of the Trust as the term is defined in the 1940 Act. 
**Messrs. Blanchard, Gooch, Storey and Morris serve as members of the Audit
Committee of the Trust.

The Trustees and officers of the Trust own less than 1% of the outstanding
shares of the Trust. The Trust pays the fees for unaffiliated Trustees.
Compensation of officers and affiliated Trustees of the Trust is paid by the
Manager.

                                      S-12
<PAGE>
 
The following table sets forth information about the compensation paid to the
Trustees for the fiscal year ended June 30, 1995:

<TABLE>
<CAPTION>
===================================================================================================== 
                                            PENSION OR
                           AGGREGATE        RETIREMENT                       TOTAL COMPENSATION
                          COMPENSATION       BENEFITS       ESTIMATED        FROM REGISTRANT AND
                              FROM          ACCRUED AS        ANNUAL        FUND COMPLEX PAID TO
 NAME OF PERSON AND      REGISTRANT FOR    PART OF FUND    BENEFITS UPON     DIRECTORS FOR FYE
      POSITION             FYE 6/30/95       EXPENSES       RETIREMENT            6/30/95
- ----------------------------------------------------------------------------------------------------- 
 <S>                     <C>               <C>             <C>              <C> 
 Robert A. Nesher,             N/A                N/A          N/A                  N/A
 Trustee*
- -----------------------------------------------------------------------------------------------------  
 Edward W. Binshadler,     $  37,500              N/A          N/A          $37,500 for services on
 Trustee**                                                                  7 boards
- -----------------------------------------------------------------------------------------------------  
 Richard F. Blanchard,     $  82,500              N/A          N/A          $82,500 for services on
 Trustee                                                                    7 boards
- -----------------------------------------------------------------------------------------------------  
 William M. Doran,             N/A                N/A          N/A                  N/A
 Trustee*
- -----------------------------------------------------------------------------------------------------  
 F. Wendell Gooch,         $  90,625              N/A          N/A          $90,625 for services on
 Trustee                                                                    7 boards
- -----------------------------------------------------------------------------------------------------  
 Frank E. Morris,          $ 112,000              N/A          N/A          $112,000 for services
 Trustee                                                                    on 7 boards
- ----------------------------------------------------------------------------------------------------- 
 James M. Storey,          $ 112,000              N/A          N/A          $112,000 for services
 Trustee                                                                    on 7 boards
===================================================================================================== 
</TABLE>

*Messrs. Nesher and Doran are Trustees who may be deemed to be "interested
persons" of the Trust as the term is defined in the 1940 Act.

**Retired as of December, 1994.


FUNDAMENTAL INVESTMENT LIMITATIONS

The following investment limitations are fundamental policies of each Portfolio
which cannot be changed with respect to a Portfolio without the consent of the
holders of a majority of that Portfolio's outstanding shares. The term "majority
of outstanding shares" means the vote of (i) 67% or more of a Portfolio's shares
present at a meeting, if not more than 50% of the outstanding shares of a
Portfolio are present or represented by proxy, or (ii) more than 50% of a
Portfolio's outstanding shares, whichever is less.

No Portfolio may:

1.   Borrow money except for temporary or emergency purposes and then only in an
     amount not exceeding 10% of the value of the total assets of that
     Portfolio. This borrowing

                                      S-13
<PAGE>
 
     provision is included solely to facilitate the orderly sale of portfolio
     securities to accommodate substantial redemption requests if they should
     occur and is not for investment purposes. All borrowings by a Portfolio
     will be repaid before making additional investments for that Portfolio and
     any interest on such borrowings will reduce the income of that Portfolio.

2.   Make loans, except that any Portfolio may purchase or hold debt instruments
     in accordance with its investment objective and policies and may enter into
     repurchase agreements, provided that repurchase agreements maturing in more
     than seven days, restricted securities and other illiquid securities are
     not to exceed, in the aggregate, 10% of the Portfolio's total assets.

3.   Pledge, mortgage or hypothecate assets except to secure temporary
     borrowings, as described in the Prospectus, in aggregate amounts not to
     exceed 10% of the net assets of such Portfolio taken at fair market value
     at the time such loan is incurred.

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

5.   Acquire more than 10% of the voting securities of any one issuer.

6.   Purchase or sell real estate, real estate limited partnership interests,
     commodities or commodities contracts including futures contracts. However,
     subject to its permitted investments, any Portfolio may purchase
     obligations issued by companies which invest in real estate, real estate
     limited partnerships, commodities or commodities contracts.

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

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

9.   Purchase securities of other investment companies except as permitted by
     the 1940 Act and the rules and regulations thereunder and, in any event,
     may not purchase securities of other open-end investment companies. Under
     these rules and regulations, the Portfolios are prohibited from acquiring
     the securities of other investment companies if, as a result of such
     acquisition, a Portfolio owns more than 3% of the total voting stock of an
     investment company; securities issued by any one investment company
     represent more than 5% of the total Portfolio assets; or securities (other
     than treasury stock) issued by all investment companies represent more than
     10% of the total assets of a Portfolio. These investment companies
     typically incur fees that are separate from those fees incurred directly by
     a Portfolio. A Portfolio's purchase of such investment companies results in
     the layering of expenses such that shareholders would indirectly bear a
     proportionate share of such investment companies' expenses, including
     advisory fees.

                                      S-14
<PAGE>
 
10.  Issue senior securities (as defined in the Investment Company Act of 1940)
     except in connection with permitted borrowings as described in the
     Prospectus and this Statement of Additional Information or as permitted by
     rule, regulation or order of the Securities and Exchange Commission.

11.  Purchase or retain securities of an issuer if, to the knowledge of the
     Trust, an officer, trustee, partner or director of the Trust or any
     investment adviser of the Trust owns beneficially more than 1/2 of 1% of
     the shares or securities of such issuer and all such officers, trustees,
     partners and directors owning more than 1/2 of 1% of such shares or
     securities together own more than 5% of such shares or securities.

12.  Purchase securities of any company which has (with predecessors) a record
     of less than three years' continuing operations, except (i) obligations
     issued or guaranteed by the U.S. Government, its agencies or
     instrumentalities, or (ii) municipal securities which are rated by at least
     two nationally recognized municipal bond rating services, if, as a result,
     more than 5% of the total assets (taken at fair market value) of the
     Portfolio would be invested in such securities.

13.  Purchase warrants, puts, calls, straddles, spreads or combinations thereof.

14.  Invest in interests in oil, gas or other mineral exploration or development
     programs.

15.  Purchase restricted securities (securities which must be registered under
     the Securities Act of 1933 before they may be offered or sold to the
     public) or other illiquid securities except as described in the Prospectus
     and this Statement of Additional Information.

Except with respect to the limitation on investing in illiquid securities, the
foregoing percentages will apply at the time of the purchase of a security and
shall not be considered violated unless an excess or deficiency occurs or exists
immediately after and as a result of a purchase of such security.


NON-FUNDAMENTAL INVESTMENT LIMITATIONS

1.   The Government Securities and Prime Obligations Portfolios must maintain an
     average dollar-weighted portfolio maturity of 90 days or less.


ADDITIONAL RESTRICTIONS

The following are non-fundamental investment limitations that are currently
required by one or more states in which the Trust sells shares of the
Portfolios. These limitations are in addition to, and in some cases more
restrictive than, the fundamental and non-fundamental investment limitations
listed above. A limitation may be changed or eliminated without shareholder

                                      S-15
<PAGE>
 
approval if the relevant state changes or eliminates its policy regarding such
investment restriction. As long as a Portfolio's shares are registered for sale
in such states, it may not:

1.   Invest more than 10% of its total assets in illiquid securities, including
     securities which are not readily marketable or are restricted.

2.   Invest more than 15% of its assets in restricted securities. For purposes
     of this limitation, securities exempted from registration under the 1933
     Act, including Section 4(2) commercial paper, are considered to be
     restricted securities.


PERFORMANCE

From time to time, each Portfolio may advertise its yield. These figures will be
based on historical earnings and are not intended to indicate future
performance.

The current yield of each Portfolio is calculated daily based upon the seven
days ending on the date of calculation ("base period"). The yield is computed by
determining the net change (exclusive of capital changes) in the value of a
hypothetical pre-existing shareholder account having a balance of one share at
the beginning of the period, subtracting a hypothetical charge reflecting
deductions from shareholder accounts and dividing such net change by the value
of the account at the beginning of the same period to obtain the base period
return and multiplying the result by (365/7). Realized and unrealized gains and
losses are not included in the calculation of the yield.

The Portfolios compute their effective compound yield by determining the net
changes, exclusive of capital changes, in the value of a hypothetical pre-
existing account having a balance of one share at the beginning of the period,
subtracting a hypothetical charge reflecting deductions from shareholder
accounts, and dividing the difference by the value of the account at the
beginning of the base period to obtain the base period return, and then
compounding the base period return by adding 1, raising the sum to a power equal
to 365 divided by 7, and subtracting 1 from the result, according to the
following formula: Effective Yield = {(Base Period Return + 1)/365/7/ - 1}. The
current and the effective yields reflect the reinvestment of net income earned
daily on portfolio assets.

Actual yields will depend on such variables as asset quality, average asset
maturity, the type of instruments a Portfolio invests in, changes in interest
rates on money market instruments, changes in the expenses of the Portfolios and
other factors.

Yields are one basis upon which investors may compare the Portfolios with other
money market funds; however, yields of other money market mutual funds and other
investment vehicles may not be comparable because of the factors set forth above
and differences in the methods used in valuing portfolio instruments.

                                      S-16
<PAGE>
 
For the seven-day period ended June 30, 1995 the Portfolios' yield and effective
yield were as follows:

<TABLE>
<CAPTION>
================================================================================
                                                               7-DAY EFFECTIVE
          PORTFOLIO/CLASS          CLASS     7-DAY YIELD            YIELD
- --------------------------------------------------------------------------------
 <S>                          <C>            <C>               <C>
 Treasury Securities          Class A         5.62                  5.78
                             --------------------------------------------------- 
                              Class D         5.27                  5.40
- -------------------------------------------------------------------------------- 
 Government Securities        Class A         5.53                  5.68
- -------------------------------------------------------------------------------- 
 Prime Obligation             Class A         5.66                  5.82
- -------------------------------------------------------------------------------- 
 Institutional Cash           Class A          N/A                   N/A
- --------------------------------------------------------------------------------
 Money Market                 Class A          N/A                   N/A
================================================================================
</TABLE>

DETERMINATION OF NET ASSET VALUE

Securities of the Portfolios will be valued by the amortized cost method, which
involves valuing a security at its cost on the date of purchase and thereafter
(absent unusual circumstances) assuming a constant amortization to maturity of
any discount or premium, regardless of the impact of fluctuations in general
market rates of interest on the value of the instrument. While this method
provides certainty in valuation, it may result in periods during which value, as
determined by this method is higher or lower than the price a Portfolio would
receive if it sold the instrument. During periods of declining interest rates,
the daily yield of a Portfolio may tend to be higher than a like computation
made by a company with identical investments utilizing a method of valuation
based upon market prices and estimates of market prices for all of its portfolio
securities. Thus, if the use of amortized cost by the Trust resulted in a lower
aggregate portfolio value on a particular day, a prospective investor in a
Portfolio would be able to obtain a somewhat higher yield than would result from
investment in a company utilizing solely market values, and existing
shareholders in the Portfolio would experience a lower yield. The converse would
apply in a period of rising interest rates.

The Trust's use of amortized cost valuation and the maintenance of the net asset
value of each Portfolio at $1.00 are permitted by Rule 2a-7, under the 1940 Act,
provided that certain conditions are met. Under Rule 2a-7, a money market
portfolio must maintain a dollar-weighted average maturity in the Portfolio of
90 days or less and not purchase any instrument having a remaining maturity of
more than 397 days. In addition, money market funds may acquire only U.S. dollar
denominated obligations that present minimal credit risks and that are "eligible
securities," which means they are (i) rated, at the time of investment, by at
least two nationally recognized statistical rating organizations (one if it is
the only organization rating such obligation) in the highest short-term rating
category or, if unrated, determined to be of comparable quality (a "first tier
security"), or (ii) rated according to the foregoing criteria in the second
highest short-term rating category or, if unrated, determined to be of
comparable quality ("second tier security"). The Adviser will determine that an
obligation presents minimal credit

                                      S-17
<PAGE>
 
risks or that unrated instruments are of comparable quality in accordance with
guidelines established by the Trustees. The Trustees must approve or ratify the
purchase of any unrated securities or securities rated by only one rating
organization. In addition, investments in second tier securities are subject to
the further constraints that (i) no more than 5% of a Portfolio's assets may be
invested in such securities in the aggregate, and (ii) any investment in such
securities of one issuer is limited to the greater of 1% of the Portfolio's
total assets or $1 million. The regulations also require the Trustees to
establish procedures which are reasonably designed to stabilize the net asset
value per unit at $1.00 for each Portfolio. However, there is no assurance that
the Trust will be able to meet this objective. The Trust's procedures include
the determination of the extent of deviation, if any, of each Portfolio's
current net asset value per unit calculated using available market quotations
from each Portfolio's amortized cost price per unit at such intervals as the
Trustees deem appropriate and reasonable in light of market conditions and
periodic reviews of the amount of the deviation and the methods used to
calculate such deviation. In the event that such deviation exceeds 1/2 of 1%,
the Trustees are required to consider promptly what action, if any, should be
initiated, and, if the Trustees believe that the extent of any deviation may
result in material dilution or other unfair results to shareholders, the
Trustees are required to take such corrective action as they deem appropriate to
eliminate or reduce such dilution or unfair results to the extent reasonably
practicable. In addition, if any Portfolio incurs a significant loss or
liability, the Trustees have the authority to reduce pro rata the number of
shares of that Portfolio in each shareholder's account and to offset each
shareholder's pro rata portion of such loss or liability from the shareholder's
accrued but unpaid dividends or from future dividends.

PURCHASE AND REDEMPTION OF SHARES

Purchases and redemptions of shares of the Funds may be made on any day the New
York Stock Exchange is open for business. Currently, the following holidays are
observed by the Trust: New Year's Day, Presidents' Day, Good Friday, Memorial
Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.

The Trust reserves the right to suspend the right of redemption and/or to
postpone the date of payment upon redemption for any period during which trading
on the New York Stock Exchange is restricted, or during the existence of an
emergency (as determined by the SEC by rule or regulation) as a result of which
disposal or evaluation of the portfolio securities is not reasonably
practicable, or for such other periods as the SEC may be order permit. The Trust
also reserves the right to suspend sales of shares of the Portfolio for any
period during which the New York Stock Exchange, the Manager, the Adviser, the
Distributor and/or the Custodian are not open for business.

State Securities laws regarding sub-administrators may differ from the
interpretations of federal law expressed herein and banks and financial
institutions acting in that capacity may be required to register as dealers
pursuant to state law.

                                      S-18
<PAGE>
 
SHAREHOLDER SERVICES (CLASS D SHARES)

STOP-PAYMENT REQUESTS: Investors may request a stop payment on checks by
providing the Trust with a written authorization to do so. Oral requests will be
accepted provided that the Trust promptly receives a written authorization. Such
requests will remain in effect for six months unless renewed or canceled. The
Trust will use its best efforts to effect stop-payment instructions, but does
not promise or guarantee that such instructions will be effective. Shareholders
requesting stop payment will be charged a $20 service fee per check which will
be deducted from their accounts.

RIGHT OF ACCUMULATION:  A shareholder qualifies for cumulative quantity
discounts when his new investment, together with the current market value of all
holdings of that shareholder in certain eligible portfolios reaches a discount
level. See "Purchase and Redemption of Shares" in the Prospectuses for the sales
charge on quantity purchases.

LETTER OF INTENT:  The reduced sales shares are also applicable to the aggregate
amount of purchases made by any such purchaser previously enumerated within a 
13-month period pursuant to a written Letter of Intent provided by the
Distributor, and not legally binding on the signer or a Portfolio which provides
for the holder in escrow by the Manager of 5% of the total amount intended to be
purchased until such purchase is completed within the 13-month period. A Letter
of Intent may be dated to include shares purchased up to 90 days prior to the
date of the Letter of Intent is signed. The 13-month period begins on the date
of the earliest purchase. If the intended investment is not completed, the
Manager will surrender an appropriate number of the escrowed shares for
redemption in order to realize the difference between the sales charge imposed
under the Letter of Intent and the sales charge that would have otherwise been
imposed.

DISTRIBUTION INVESTMENT OPTION: Distributions of dividends and capital gains
made by the Portfolios may be automatically invested in shares of one of the
Portfolios if shares of the Portfolio are available for sale. Such investments
will be subject to initial investment minimums, as well as additional purchase
minimums. A shareholder considering the Distribution Investment Option should
obtain and read the prospectus of the Portfolios and/or classes in which such
automatic investments are to be made and consider the differences in investment
objectives and policies before making any investment.

REINSTATEMENT PRIVILEGE:  A shareholder who has redeemed shares of any of the
Portfolios has a one-time right to reinvest the redemption proceeds in shares of
the Portfolio at their net asset value as of the time of reinvestment. Such a
reinvestment must be made within 30 days of the redemption and is limited to the
amount of the redemption proceeds. Although redemptions and repurchases of
shares are taxable events, a reinvestment within such 30-day period in the same
fund is considered a "wash sale" and results in the inability to recognize
currently all or a portion of a loss realized on the original redemption for
federal income tax purposes. The investor must notify the Transfer Agent at the
time the trade is placed that the transaction is a reinvestment.

                                      S-19
<PAGE>
 
EXCHANGE PRIVILEGE: Some or all of the shares of the Portfolio for which payment
has been received (i.e., an established account) may be exchanged, at their net
                   ----                                                        
asset value, plus any applicable sales charge, for Class D shares of the Trust,
SEI Tax Exempt Trust, SEI Daily Income Trust, SEI International Trust and SEI
Institutional Managed Trust or at their net asset value for Class D shares of
other portfolios of such trusts that do not have sales charges. Exchanges will
be made only after proper instructions in writing or by telephone (an "Exchange
Request") are received for an established account by the Distributor.

A shareholder may exchange a Portfolio's Class D shares, for which good payment
has been received, in his account at any time, regardless of how long he has
held his shares.

Each Exchange Request must be in proper form (i.e., if in writing, signed by the
                                              ----                              
record owner(s) exactly as the shares are registered; if by telephone, proper
account identification is given by the dealer or shareholder of record), and
each exchange must involve either shares having an aggregate value of at least
$1,000 or all the shares in the account. Each exchange involves the redemption
of the shares of a Portfolio to be exchanged and the purchase of the shares of
the other Portfolio. Any gain or loss on the redemption of the shares exchanged
is reportable on the shareholder's Federal income tax return, unless such shares
were held in a tax-deferred retirement plan or other tax-exempt account. If the
Exchange Request is received by the Distributor in writing or by telephone on
any Business Day, as defined in the Prospectuses of the Trust, prior to the
close of the New York Stock Exchange, the exchange will be effective on that day
if all the restrictions set forth above have been complied with at that time.
However, payment of the redemption proceeds by the Portfolios, and thus the
purchase of shares of the other Portfolios, may be delayed for up to seven days
if the Portfolios determine that such delay would be in the best interest of all
of its shareholders. Investment dealers which have satisfied criteria
established by the Portfolios may also communicate a shareholder's Exchange
Request to the Portfolios subject to the restrictions set forth above. No more
than five exchange requests may be made in any one telephone Exchange Request.

TAXES

The following is only a summary of certain tax considerations generally
affecting a Portfolio and its shareholders, and is not intended as a substitute
for careful tax planning. Shareholders are urged to consult their tax advisors
with specific reference to their own tax situations, including their state and
local tax liabilities.



FEDERAL INCOME TAXES

The following discussion of federal income tax consequences is based on the
Internal Revenue Code of 1986, as amended (the "Code"), and the regulations
issued thereunder as in effect on the date of this Statement of Additional
Information. New legislation, as well as administrative

                                      S-20
<PAGE>
 
changes or court decisions, may significantly change the conclusions expressed
herein, and may have a retroactive effect with respect to the transactions
contemplated herein.

Each Portfolio intends to qualify as a regulated investment company ("RIC") as
defined under Subchapter M of the Code. By following such a policy, each of the
Portfolios expects to eliminate or reduce to a nominal amount the federal income
taxes to which such Portfolio may be subject.

In order to qualify for treatment as a RIC, a Portfolio must distribute annually
to its shareholders at least the sum of 90% of its net interest income
excludable from gross income plus 90% of its investment company taxable income
(generally, net investment income plus net short-term capital gain) (the
"Distribution Requirement") and also must meet several additional requirements.
Among these requirements are the following: (i) at least 90% of a Portfolio's
gross income each taxable year must be derived from dividends, interest,
payments with respect to securities loans, and gains from the sale or other
disposition of stock or securities, or other income derived with respect to its
business of investing in such stock or securities; (ii) less than 30% of a
Portfolio's gross income each taxable year must be derived from the sale or
other disposition of stocks, securities or certain other investments held for
less than three months; (iii) at the close of each quarter of a Portfolio's
taxable year, at least 50% of the value of its total assets must be represented
by cash and cash items, U.S. government securities, securities of other RIC's,
and other securities, with such other securities limited, in respect of any one
issuer, to an amount that does not exceed 5% of the value of a Portfolio's
assets and that does not represent more than 10% of the outstanding voting
securities of such issuer; and (iv) at the close of each quarter of a
Portfolio's taxable year, not more than 25% of the value of its assets may be
invested in securities (other than U.S. government securities or the securities
of other RIC's) of any one issuer or of two or more issuers which are engaged in
the same, similar or related trades or businesses if the Portfolio owns at least
20% of the voting power of such issuers.

Notwithstanding the Distribution Requirement described above, which only
requires a Portfolio to distribute at least 90% of its annual investment company
taxable income and does not require any minimum distribution of net capital gain
(the excess of net long-term capital gain over net short-term capital loss), a
Portfolio will be subject to a nondeductible 4% federal excise tax to the extent
it fails to distribute by the end of any calendar year at least 98% of its
ordinary income for that year and 98% of its capital gain net income (the excess
of short and long-term capital gains over short and long-term capital losses)
for the one-year period ending on October 31 of that year, plus certain other
amounts.

If capital gain distributions have been made with respect to shares that are
sold at a loss after being held for six months or less, the loss is treated as a
long-term capital loss to the extent of the previous capital gain distributions.

If a Portfolio fails to qualify as a RIC for any year, all of its taxable income
will be subject to tax at regular corporate rates without any deduction for
distributions to shareholders, and its distributions (including capital gains
distributions) will be taxable as ordinary income dividends

                                      S-21
<PAGE>
 
to its shareholders, subject to the dividends received deduction for corporate
shareholders. Otherwise, distributions to shareholders generally will not be
eligible for the dividends received deduction.

STATE TAXES

A Portfolio is not liable for any income or franchise tax in Massachusetts if it
qualifies as a RIC for federal income tax purposes. Depending upon state and
local law, distributions by the Portfolio to shareholders and the ownership of
shares may be subject to state and local taxes.

PORTFOLIO TRANSACTIONS

The Trust has no obligation to deal with any dealer or group of dealers in the
execution of transactions in portfolio securities. Subject to policies
established by the Trustees, the Adviser is responsible for placing orders to
execute Portfolio transactions. In placing orders, it is the Trust's policy to
seek to obtain the best net results taking into account such factors as price
(including the applicable dealer spread), size, type and difficulty of the
transaction involved, the firm's general execution and operational facilities,
and the firm's risk in positioning the securities involved. While the Adviser
generally seeks reasonably competitive spreads or commissions, the Trust will
not necessarily be paying the lowest spread or commission available. The Trust's
policy of investing in securities with short maturities will result in high
portfolio turnover. The Trust will not purchase portfolio securities from any
affiliated person acting as principal except in conformity with the regulations
of the Securities and Exchange Commission.

The Trust does not expect to use one particular dealer, but, subject to the
Trust's policy of seeking the best net results, dealers who provide supplemental
investment research to the Adviser may receive orders for transactions by the
Trust. Information so received will be in addition to and not in lieu of the
services required to be performed by the Adviser under the Advisory Agreements,
and the expenses of the Adviser will not necessarily be reduced as a result of
the receipt of such supplemental information.

The money market securities in which certain of the Portfolios invest are traded
primarily in the over-the-counter market. Where possible, the Adviser will deal
directly with the dealers who make a market in the securities involved except in
those circumstances where better prices and execution are available elsewhere.
Such dealers usually are acting as principal for their own account. On occasion,
securities may be purchased directly from the issuer. Money market securities
generally are traded on a net basis and normally do not involve either brokerage
commissions or transfer taxes. The cost of executing portfolio securities
transactions of the Portfolio will primarily consist of dealer spreads and
underwriting commissions.

Since the Trust does not market its shares through intermediary brokers or
dealers, it is not the Trust's practice to allocate brokerage or principal
business on the basis of sales of its shares which may be made through such
firms. However, the Adviser may place portfolio orders with qualified broker-
dealers who recommend the Trust to clients, and may, when a number of

                                      S-22
<PAGE>
 
brokers and dealers can provide best price and execution on a particular
transaction, consider such recommendations by a broker or dealer in selecting
among broker-dealers.

For the Trust's fiscal years ended June 30, 1993, 1994 and 1995, no brokerage
fees were paid.

DESCRIPTION OF SHARES

The Declaration of Trust authorizes the issuance of an unlimited number of
shares of each Portfolio, each of which represents an equal proportionate
interest in that Portfolio. Each share of a Portfolio upon liquidation of that
Portfolio entitles a shareholder to a pro rata share in the net assets of that
Portfolio, after taking into account certain distribution expenses. Shareholders
have no preemptive rights. The Declaration of Trust provides that the Trustees
of the Trust may create additional portfolios of shares or classes of
portfolios. Any consideration received by the Trust for shares of any additional
Portfolio and assets in which such consideration is invested would belong to
that Portfolio and would be subject to the liabilities related thereto. Share
certificates representing the shares will not be issued.

LIMITATION OF TRUSTEES' LIABILITY

The Declaration of Trust provides that a Trustee shall be liable only for his
own willful defaults and, if reasonable care has been exercised in the selection
of officers, agents, employees or administrators, shall not be liable for any
neglect or wrongdoing of any such person. The Declaration of Trust also provides
that the Trust will indemnify its Trustees and officers against liabilities and
expenses incurred in connection with actual or threatened litigation in which
they may be involved because of their offices with the Trust unless it is
determined in the manner provided in the Declaration of Trust that they have not
acted in good faith in the reasonable belief that their actions were in the best
interests of the Trust. However, nothing in the Declaration of Trust shall
protect or indemnify a Trustee against any liability for his willful
misfeasance, bad faith, gross negligence or reckless disregard of his duties.

SHAREHOLDER LIABILITY

The Trust is an entity of the type commonly known as a "Massachusetts business
trust." Under Massachusetts law, shareholders of the Trust could, under certain
circumstances, be held personally liable for the obligations of the Trust.
However, the possibility of the shareholders' incurring financial loss appears
remote because the Trust's Declaration of Trust contains an express disclaimer
of shareholder liability for obligations of the Trust, and requires that notice
of such disclaimer be given in each agreement, obligation or instrument entered
into or executed by or on behalf of the Trust or the Trustees. The Declaration
of Trust provides for indemnification out of the Trust's property for any
shareholder held personally liable for the obligations of the Trust.

                                      S-23
<PAGE>
 
5% SHAREHOLDERS

As of October 5, 1995, the following persons were the only persons who were
record owners (or to the knowledge of the Trust, beneficial owners) of 5% or
more of the shares of the Portfolios. The Trust believes that most of the shares
referred to below were held by the persons indicated in accounts for their
fiduciary, agency, or custodial customers.

TREASURY SECURITIES PORTFOLIO     CLASS A SHARES:

<TABLE>
<CAPTION>
Name and Address                        Number of Shares      Percent of Funds
- ----------------                        ----------------      -----------------
<S>                                     <C>                   <C>
First Hawaiian Bank                      255,829,356.51        20.31%
Financial Management Group (FIDAC)
Attn:  Dolores Mollring
P.O. Box 3200
Honolulu, HI  96847
 
Bank of America NT&SA                    111,264,115.04         8.83%
Attn: Common Trust Funds Unit #8239
P.O. Box 3577, Terminal Annex
Los Angeles, CA  90051
 
North American Trust Company              77,585,312.17         6.16%
Attn:  David Hilbish
225 Broadway, Suite 200
San Diego, CA  92101
 
The Fulton Company                       163,648,232.62        12.99%
c/o Fulton Bank Trust Department
Attn: Dennis Patrick
One Penn Square
Lancaster, PA  17602

TREASURY SECURITIES PORTFOLIO     CLASS D SHARES:

Sumitomo Bank Trustee, FBO                     6,394.91        33.81%
Laurie Huey Cust FBO
Michelle Huey UGMA CA
874 Shore Breeze Drive
Sacramento, CA 95831
</TABLE> 

                                      S-24
<PAGE>
 
<TABLE>
<CAPTION>
Name and Address                        Number of Shares      Percent of Funds
- ----------------                        ----------------      ----------------
<S>                                     <C>                   <C>
Sumitomo Bank Trustee, FBO                     6,394.91                 33.81%
Laurie Huey Cust FBO
Megan Huey UGMA CA
874 Shore Breeze Drive
Sacramento, CA 95831
 
Robert H. Gibson &                             3,000.00                 15.86%
 Diane E Gibson Jtten
P.O. Box 207
209 County Road 443
Grand Lake, CO 80447
 
Sukhavati Temple                               1,013.05                  5.35%
74 Old Main Street
South Yarmouth, MA 02664
 
Joseph F. King                                 1,061.11                  5.61%
P.O. Box 2336
Ramona, CA 92065
 
Paul Shih &                                    1,044.98                  5.52%
Wen-Chen Shih Jtten
17381 Coronado Lane
Huntington Beach, CA 92647
 
GOVERNMENT SECURITIES PORTFOLIO:
 
United Jersey Bank                        33,253,184.21                 16.47%
Attn: Joseph Guittari
P.O. Box 547
Hackensack, NJ  07602
 
Vose & Co.                                64,790,981.07                 32.08%
c/o Fleet/Norstar Services
One East Avenue
Funds Central NY/RO/3090
Rochester, NY  14638-0001
 
CoreStates Bank, N.A.                     20,933,007.46                 10.37%
Attn: James Quinlan
Penn Mutual Insurance Building
Philadelphia, PA  19106
</TABLE>

                                      S-25
<PAGE>
 
<TABLE>
<CAPTION>
Name and Address                        Number of Shares      Percent of Funds
- ----------------                        ----------------      -----------------
<S>                                     <C>                   <C>
PRIME OBLIGATION PORTFOLIO:
 
BHC Securities Inc.                       49,978.881.73         5.70%
Attn:  Cash Sweeps Department
2005 Market Street
One Commerce Square, 11th Floor
Philadelphia, PA 19103
 
Eagle Trust Company                       52,684,107.18         6.01%
Attn:  Jacqueline Esposito
680 East Swedesford Road
Wayne, PA  19087
 
Republic & Co.                            86,530,300.00         9.86%
c/o Imperial Trust Company
Attn:  Shirley Matthews
201 N. Figueroa Street, #610
Los Angeles, CA  90012
 
CoreStates Bank, N.A.                    103,807,482.77        11.83%
Attn:  James Quinlan
Penn Mutual Insurance Building
Philadelphia, PA  19106
 
Smith & Co.                              123,244,202.31        14.05%
c/o First Security Bank of Utah, N.A.
Attn:  Money Market/Mutual Fund Desk
P.O. Box 25297
Salt Lake City, UT  84125
</TABLE> 

EXPERTS

The financial statements in this Statement of Additional Information and the
financial highlights included in the Prospectuses have been audited by Price
Waterhouse LLP, independent public accountants, as indicated in their report,
with respect thereto, and are included herein in reliance upon the authority of
said firm as experts in giving said report.

                                      S-26
<PAGE>
 
FINANCIAL STATEMENTS

Following are the audited financial statements of the Trust for the fiscal year
ended June 30, 1995, and the Report of Independent Accountants of Price
Waterhouse LLP dated August 11, 1995, relating to the financial statements and
financial highlights of the Trust.

                                      S-27
<PAGE>
 
STATEMENT OF NET ASSETS
- --------------------------------------------------------------------------------
SEI Liquid Asset Trust--June 30, 1995
TREASURY SECURITIES PORTFOLIO
<TABLE>
- ------------------------------------------------------------------------------
<CAPTION>
Description                                              Par (000) Value (000)
- ------------------------------------------------------------------------------
<S>                                                      <C>       <C>
U.S. TREASURY OBLIGATIONS -- 55.4%
 U.S. Treasury Bills
  6.380%, 08/10/95                                       $ 230,000  $  228,441
  6.126%, 09/14/95                                          97,000      95,814
  6.133%, 09/14/95                                          90,000      88,899
  6.068%, 10/26/95                                          42,000      41,207
  5.598%, 12/21/95                                         203,000     197,757
  5.600%, 12/21/95                                          50,000      48,707
                                                                    ----------
Total U.S. Treasury Obligations
 (Cost $700,825,036)                                                   700,825
                                                                    ----------
REPURCHASE AGREEMENTS -- 45.1%
 Donaldson, Lufkin & Jenrette
  Securities (A)
  6.15%, dated 06/30/95, matures 07/03/95, repurchase
  price $170,087,125 (collateralized by U.S. Treasury
  Bills par value $19,464,000, matures 09/28/95: U.S.
  Treasury Notes total par value $73,960,000, 5.625%-
  6.875%, 02/28/97-01/15/00: U.S Treasury Bond par value
  52,900,000, 11.75%,matures 11/15/14: total market
  value $173,400,428)                                      170,000     170,000
 Lehman Brothers (A)
  6.20%, dated 06/30/95, matures 07/03/95, repurchase
  price $2,448,264 (collateralized by U.S. Treasury Note
  par value $2,446,000, 6.50%, matures 04/30/97: market
  value $2,496,871)                                          2,447       2,447
 Nomura Securities International (A)(B)
  5.95%, dated 06/23/95, matures 07/24/95, repurchase
  price $114,584,092 (collateralized by U.S. Treasury
  Bills par value $14,470,000, matures 05/30/96: U.S.
  Treasury Notes total par value $92,015,000, 5.75%-
  6.875%, 04/30/97-08/15/04: U.S. Treasury Bond par
  value $5,026,000, 12.00%, matures 08/15/13: total
  market value $116,280,217)                               114,000     114,000
</TABLE>
 
<TABLE>
- -------------------------------------------------------------------------------
<CAPTION>
                                                                  Value
Description                                           Par (000)   (000)
- -------------------------------------------------------------------------------
<S>                                                   <C>       <C>         <C>
 Swiss Bank Corporation (A)
  6.17%, dated 06/30/95, matures 07/03/95, repurchase
  price $283,673,780 (collateralized by U.S. Treasury
  Bills total par value $39,335,000, 07/13/95-
  06/27/96: U.S. Treasury Notes total par value
  $281,797,000, 3.875%-8.50%, 08/15/95-05/15/05: U.S.
  Treasury Bonds total par value $385,000, 7.625%-
  12.00%, 08/15/13-02/15/25: total market value
  $319,966,232)                                       $ 283,528 $  283,528
                                                                ----------
Total Repurchase Agreements
 (Cost $569,975,000)                                               569,975
                                                                ----------
Total Investments -- 100.5%
 (Cost $1,270,800,036)                                           1,270,800
                                                                ----------
OTHER ASSETS AND LIABILITIES -- (0.5%)
 Other Asset and Liabilities, Net                                   (6,114)
                                                                ----------
NET ASSETS:
 Portfolio shares of Class A (unlimited
  authorization -- no par value) based on
  1,254,737,326 outstanding shares of beneficial
  interest                                                       1,254,737
 Portfolio shares of Class D (unlimited
  authorization -- no par value) based on 9,796,527
  outstanding shares of beneficial interest                          9,797
 Accumulated net realized gain on investments                          152
                                                                ----------
Total Net Assets -- 100.0%                                      $1,264,686
                                                                ==========
Net Asset Value, Offering and Redemption Price Per
 Share -- Class A                                               $     1.00
                                                                ==========
Net Asset Value, Offering and Redemption Price Per
 Share --Class D                                                $     1.00
                                                                ==========
</TABLE>
(A) Tri-party repurchase agreement
(B) Term repurchase agreement
The accompanying notes are an integral part of the financial statements.
 
                                                                               1

<PAGE>
 
STATEMENT OF NET ASSETS
- --------------------------------------------------------------------------------
SEI Liquid Asset Trust--June 30, 1995
GOVERNMENT SECURITIES PORTFOLIO
<TABLE>
- -------------------------------------------------------------------------------
<CAPTION>
 
Description                                               Par (000) Value (000)
- -------------------------------------------------------------------------------
<S>                                                       <C>       <C>
U.S. GOVERNMENT AGENCY OBLIGATIONS -- 95.7%
 Federal Farm Credit Bank
  6.230%, 09/29/95                                         $ 3,150   $  3,103
 Federal Home Loan Bank
  6.311%, 08/01/95                                          10,000      9,948
  6.340%, 08/18/95                                          10,000      9,919
  6.183%, 09/06/95                                           6,000      5,933
 Federal Home Loan Mortgage
  6.105%, 08/01/95                                          10,000      9,949
  5.942%, 09/05/95                                           9,550      9,448
  5.929%, 09/25/95                                           1,000        986
  5.775%, 11/01/95                                           1,120      1,099
  5.969%, 11/27/95                                           5,000      4,881
 Federal National Mortgage
  5.690%, 07/05/95 (A)                                      22,000     22,000
  6.101%, 08/04/95                                          20,000     19,888
  6.306%, 08/07/95                                           9,320      9,262
  6.083%, 08/14/95                                          35,650     35,392
  6.350%, 08/28/95                                           9,000      8,912
  6.281%, 09/29/95                                          10,000      9,850
  6.116%, 10/03/95                                             350        345
  6.371%, 10/03/95                                           1,030      1,014
  5.876%, 10/04/95                                           1,005        990
 Student Loan Marketing
  5.700%, 07/05/95 (A)                                      15,400     15,400
  5.860%, 07/05/95 (A)                                       8,000      8,035
  5.885%, 07/05/95 (A)                                       5,800      5,817
                                                                     --------
Total U.S. Government Agency Obligations
 (Cost $192,171,309)                                                  192,171
                                                                     --------
REPURCHASE AGREEMENT -- 4.7%
 Lehman Brothers (B)
  6.2%,dated 06/30/95, matures 07/03/95, repurchase price
  $9,428,869 (collateralized by U.S. Treasury Note par
  value $9,420,000, 6.50%, matures 04/30/97: market value
  $9,615,915)                                                9,424      9,424
                                                                     --------
Total Repurchase Agreement
 (Cost $9,424,000)                                                      9,424
                                                                     --------
Total Investments -- 100.4%
 (Cost $201,595,309)                                                  201,595
                                                                     --------
OTHER ASSETS AND LIABILITIES -- (0.4%)
 Other Assets and Liabilities, Net                                       (827)
                                                                     --------
</TABLE>
<TABLE>
- -------------------------------------------------------------------------------
<CAPTION>
 
Description                                               Par (000) Value (000)
- -------------------------------------------------------------------------------
<S>                                                       <C>       <C>
NET ASSETS:
 Portfolio Shares (unlimited authorization -- no par
  value) based on 200,789,702 outstanding shares of
  beneficial interest                                                $ 200,790
 Accumulated net realized loss on investments                              (21)
 Distributions in excess of net investment income                           (1)
                                                                     ---------
Total Net Assets -- 100.0%                                           $ 200,768
                                                                     =========
Net Asset Value, Offering and Redemption Price per Share             $    1.00
                                                                     =========
(A) Variable rate instrument. The rate reflected on the Statement of Net Assets
    is the rate in effect on June 30, 1995.
(B) Tri-party repurchase agreement.
The accompanying notes are an integral part of the financial statements.
 
PRIME OBLIGATION PORTFOLIO
 
U.S. GOVERNMENT AGENCY
 OBLIGATIONS -- 16.9%
 Federal Home Loan Bank
  6.238%, 07/10/95                                         $ 7,000   $   6,989
  6.315%, 08/23/95                                          14,385      14,257
 Federal Home Loan Mortgage
  5.958%, 09/08/95                                           3,940       3,896
 Federal National Mortgage
  5.690%, 07/05/95 (A)                                      30,000      30,000
  6.225%, 07/17/95                                          10,000       9,973
  6.706%, 07/26/95                                          30,000      29,867
  5.945%, 11/13/95                                          10,000       9,786
 Student Loan Marketing
  5.700%, 07/05/95 (A)                                      24,000      24,000
  5.710%, 07/05/95 (A)                                       7,000       7,001
  5.720%, 07/05/95 (A)                                      15,000      15,004
  5.720%, 07/05/95 (A)                                       8,000       8,000
                                                                     ---------
Total U.S. Government Agency Obligations
 (Cost $158,773,184)                                                   158,773
                                                                     ---------
COMMERCIAL PAPER -- 69.7%
 American Express Credit
  6.030%, 07/17/95                                          10,000       9,973
  6.100%, 07/21/95                                          10,000       9,966
  5.900%, 10/19/95                                           6,000       5,892
 American General
  6.000%, 07/26/95                                          10,000       9,958
 American General Finance
  5.940%, 07/31/95                                          10,000       9,951
  5.700%, 09/15/95                                          10,000       9,880
</TABLE>
 
2

<PAGE>
 
- --------------------------------------------------------------------------------
PRIME OBLIGATION PORTFOLIO
<TABLE>
- --------------------------------------------------------------
<CAPTION>
 
Description                              Par (000) Value (000)
- --------------------------------------------------------------
<S>                                      <C>       <C>
 American Home Products (B)
  5.970%, 08/09/95                        $ 9,000   $  8,942
 Associates Corporation of North America
  5.950%, 07/27/95                         10,000      9,957
  5.950%, 08/07/95                         15,000     14,908
 Bear Stearns Companies
  5.950%, 07/10/95                         10,000      9,985
  5.980%, 07/11/95                          8,000      7,987
  5.840%, 08/04/95                         15,000     14,917
 Beneficial Corporation
  6.000%, 07/06/95                         15,000     14,988
  5.940%, 08/09/95                         10,000      9,936
  5.900%, 09/21/95                         10,000      9,866
 Central & South West Corporation
  6.010%, 08/04/95                         10,000      9,943
  5.870%, 09/22/95                         15,000     14,797
 Ciesco LP
  5.970%, 07/13/95                         10,000      9,980
  5.930%, 08/11/95                         20,000     19,865
 CIT Group Holdings
  6.100%, 07/05/95                         10,000      9,993
  6.100%, 07/24/95                         10,000      9,961
  5.680%, 12/06/95                         10,000      9,751
 Corporate Asset Funding
  5.970%, 08/02/95                         10,000      9,947
 CSW Credit
  5.950%, 08/15/95                          5,000      4,963
 Dean Witter Discover
  6.000%, 07/26/95                          8,000      7,967
 Delaware Funding
  5.960%, 07/18/95                          4,966      4,952
  5.950%, 08/08/95                         10,000      9,937
  5.970%, 08/14/95                         15,000     14,890
 Ford Motor Credit
  6.000%, 07/20/95                         15,000     14,953
  5.950%, 09/05/95                         15,000     14,836
  5.740%, 09/29/95                          8,000      7,885
 General Electric Capital
  5.920%, 09/05/95                         15,000     14,836
  5.700%, 09/20/95                         15,000     14,808
  5.700%, 11/02/95                          5,000      4,902
 IBM Credit
  6.040%, 07/12/95                         15,000     14,972
 International Lease Finance
  6.000%, 07/12/95                         10,000      9,982
  5.950%, 07/17/95                          6,300      6,283
  5.720%, 10/27/95                         10,000      9,812
 John Deere Capital
  5.940%, 08/01/95                         20,000     19,898
  5.680%, 11/21/95                         10,000      9,774
</TABLE>
<TABLE>
- -----------------------------------------------------------------
<CAPTION>
 
Description                                 Par (000) Value (000)
- -----------------------------------------------------------------
<S>                                         <C>       <C>
 McKenna Triangle
  6.010%, 07/12/95                           $ 4,300   $  4,292
 Merrill Lynch
  5.950%, 07/17/95                            20,000     19,947
 Norwest Corporation
  6.000%, 07/24/95                            10,000      9,962
 Norwest Financial
  6.000%, 08/01/95                            10,000      9,948
 Philip Morris Companies
  5.960%, 08/03/95                            14,000     13,923
  6.000%, 08/07/95                            10,000      9,938
 Prudential Funding
  5.970%, 07/13/95                            10,000      9,980
  5.940%, 07/27/95                            15,000     14,936
 Puerto Rico Development Bank
  6.020%, 07/19/95                             8,000      7,976
  6.010%, 07/20/95                            20,000     19,937
 Riverwood Funding
  5.950%, 07/26/95                            10,000      9,959
 Sears Roebuck Acceptance
  6.100%, 07/11/95                            12,000     11,980
  6.030%, 07/24/95                            10,000      9,961
 Toshiba America
  5.950%, 09/08/95                             5,000      4,943
  5.870%, 11/13/95                            22,150     21,662
 Transamerica Finance
  6.100%, 07/10/95                            16,000     15,976
  6.000%, 07/27/95                            10,000      9,957
 Whirlpool Corporation
  6.020%, 08/01/95                             5,000      4,974
 Zeneca Wilmington Incorporation
  6.000%, 07/05/95                             9,000      8,994
                                                       --------
Total Commercial Paper
 (Cost $656,238,515)                                    656,238
                                                       --------
CERTIFICATES OF DEPOSIT -- 3.0%
 First Alabama Bank
  6.120%, 07/21/95                            11,000     11,000
 First National Bank of Boston
  6.020%, 07/18/95                            10,000     10,000
 West One Bank
  6.000%, 10/02/95                             7,000      7,000
                                                       --------
Total Certificates of Deposit
 (Cost $28,000,000)                                      28,000
                                                       --------
FLOATING RATE INSTRUMENTS -- 8.8%
 Allstate (A)
  6.163%, 08/01/95                            10,000     10,000
 Corestates Capital (A)
  6.090%, 01/05/96                            10,000     10,000
 People's Security Funding Agreement (A)(B)
  6.360%, 08/01/95                            33,000     33,000
</TABLE>
 
                                                                               3

<PAGE>
 
STATEMENT OF NET ASSETS
- --------------------------------------------------------------------------------
SEI Liquid Asset Trust--June 30, 1995
PRIME OBLIGATION PORTFOLIO
<TABLE>
- ------------------------------------------------------------------------------
<CAPTION>
 
Description                                              Par (000) Value (000)
- ------------------------------------------------------------------------------
<S>                                                      <C>       <C>
 SMM Trust 1994-B (A)(B)
  6.238%, 08/11/95                                       $ 10,000   $ 10,000
 SMM Trust 1995-I (A)(B)
  6.082%, 05/29/96                                         20,000     19,995
                                                                    --------
Total Floating Rate Instrument
 (Cost $82,994,703)                                                   82,995
                                                                    --------
REPURCHASE AGREEMENT -- 2.0%
 Lehman Brothers (C)
  6.20%, dated 06/30/95, mature 07/03/95, repurchase
  price $18,694,654 (collateralized by U.S. Treasury
  Note par value $3,684,000, 6.50%, matures 04/30/97:
  U.S. Treasury Bills, par value $15,733,000, matures
  12/28/95: total market value $19,069,632)                18,685     18,685
                                                                    --------
Total Repurchase Agreement
 (Cost $18,685,000)                                                   18,685
                                                                    --------
Total Investments -- 100.4%
 (Cost $944,691,402)                                                 944,691
                                                                    --------
</TABLE>
 
 
 
 
<TABLE>
- -------------------------------------------------------------------------------
<CAPTION>
 
Description                                                         Value (000)
- -------------------------------------------------------------------------------
<S>                                                             <C> <C>
OTHER ASSETS AND LIABILITIES -- ( 0.4%)
 Other Assets and Liabilities, Net                                   $ (3,828)
                                                                     --------
NET ASSETS:
 Portfolio shares (unlimited authorization--no par value) based
  on 940,882,322 outstanding shares of beneficial interest            940,882
 Accumulated net realized loss on investments                             (19)
                                                                     --------
Total Net Assets -- 100.0%                                           $940,863
                                                                     ========
Net Asset Value, Offering and Redemption Price Per Share             $   1.00
                                                                     ========
</TABLE>
(A) Variable rate instrument. The rate reflected on the Statement of Net Assets
    is the rate in effect on June 30,1995.
(B) Private Placement
(C) Tri-party repurchase agreement
The accompanying notes are an integral part of the financial statements.
 
4

<PAGE>
 
 
STATEMENT OF ASSETS AND LIABILITIES
- --------------------------------------------------------------------------------
SEI Liquid Asset Trust--June 30, 1995
<TABLE>
<CAPTION>
                                                   ------------- ------------
                                                   INSTITUTIONAL
                                                       CASH      MONEY MARKET
                                                     PORTFOLIO    PORTFOLIO
                                                   ------------- ------------
<S>                                                <C>           <C>
ASSETS:
 Cash                                                  $ 100        $ 100
                                                       -----        -----
 Total assets                                            100          100
                                                       -----        -----
NET ASSETS:
 Portfolio shares (unlimited authorization--no par
 value) based on 100 outstanding shares of
 beneficial interest                                     100          100
                                                       -----        -----
 Total net assets                                      $ 100        $ 100
                                                       =====        =====
NET ASSET VALUE, OFFERING PRICE AND REDEMPTION
PRICE PER SHARE CLASS A                                $1.00        $1.00
                                                       =====        =====
</TABLE>
 
 
The accompanying notes are an integral part of the financial statements.
 
                                                                               5

<PAGE>
 
STATEMENT OF OPERATIONS (000)
- --------------------------------------------------------------------------------
SEI Liquid Asset Trust--June 30, 1995
<TABLE>
<CAPTION>
                                 ---------- ---------- ---------- -------------
                                  TREASURY  GOVERNMENT   PRIME    INSTITUTIONAL
                                 SECURITIES SECURITIES OBLIGATION     CASH
                                 PORTFOLIO  PORTFOLIO  PORTFOLIO    PORTFOLIO
                                 ---------- ---------- ---------- -------------
<S>                              <C>        <C>        <C>        <C>
Interest Income                   $68,880    $13,256    $57,035       $101
                                  -------    -------    -------       ----
EXPENSES:
 Management fee                     5,388      1,016      4,236          8
 Less management fees waived       (1,227)      (221)      (884)        --
 Investment advisory fee              396         75        311         --
 Custodian/wire agent fees            164         28        113         --
 Professional fees                     51         10         33         --
 Trustee fees                          23          4         18         --
 Registration & filing fees           176         28        122         --
 Distribution fees                    581        106        436         --
 Insurance                             31          6         24         --
 Other fees                            67         12         29         --
                                  -------    -------    -------       ----
 Total expenses                     5,650      1,064      4,438          8
                                  -------    -------    -------       ----
NET INVESTMENT INCOME              63,230     12,192     52,597         93
                                  -------    -------    -------       ----
 Net realized gain from security
  transactions                        240         39         55         --
                                  -------    -------    -------       ----
NET INCREASE IN NET ASSETS FROM
 OPERATIONS                       $63,470    $12,231    $52,652       $ 93
                                  =======    =======    =======       ====
</TABLE>
 
  Amounts designated as "--" are either $0 or have been rounded to $0.
 
 
The accompanying notes are an integral part of the financial statements.
 
6

<PAGE>
 
STATEMENT OF CHANGES IN NET ASSETS (000)
- --------------------------------------------------------------------------------
SEI Liquid Asset Trust--for the fiscal years ended June 30
<TABLE>
<CAPTION>
                           -------------------------  ------------------------
                                   TREASURY                 GOVERNMENT
                                  SECURITIES                SECURITIES
                           -------------------------  ------------------------
                              1995          1994         1995         1994
                           -------------------------  ------------------------
<S>                        <C>          <C>           <C>          <C>
OPERATIONS:
 Net investment income     $    63,230  $     51,915  $    12,192  $    10,615
 Net realized gain from
  security transactions            240           181           39           78
                           -----------  ------------  -----------  -----------
 Net increase in net
  assets resulting from
  operations                    63,470        52,096       12,231       10,693
                           -----------  ------------  -----------  -----------
DIVIDENDS DISTRIBUTED
 FROM:
 Net investment income:
 Class A                       (62,948)      (51,915)     (12,193)     (10,615)
 Class D                          (282)           --           --           --
 Net realized gains:
 Class A                            --           (91)          --           --
 Class D                            --            --           --           --
                           -----------  ------------  -----------  -----------
 Total dividends
  distributed                  (63,230)      (52,006)     (12,193)     (10,615)
                           -----------  ------------  -----------  -----------
CAPITAL SHARE
 TRANSACTIONS (ALL AT
 $1.00 PER SHARE):
 Class A:
 Proceeds from shares
  issued                     9,652,814    11,652,775    1,544,000    2,184,077
 Shares issued in lieu of
  cash distributions               823         1,963          579          545
 Cost of shares
  repurchased               (9,900,410)  (12,373,107)  (1,599,403)  (2,436,978)
                           -----------  ------------  -----------  -----------
 Decrease in net assets
  derived from Class A
  transactions                (246,773)     (718,369)     (54,824)    (252,356)
                           -----------  ------------  -----------  -----------
 Class D
 Proceeds from shares
  issued                        25,743            39           --           --
 Shares issued in lieu of
  cash distributions                 2            --           --           --
 Cost of shares
  repurchased                  (15,971)          (16)          --           --
                           -----------  ------------  -----------  -----------
 Increase in net assets
  derived from Class D
  transactions                   9,774            23           --           --
                           -----------  ------------  -----------  -----------
 Decrease in net assets
  derived from capital
  share transactions          (236,999)     (718,346)     (54,824)    (252,356)
                           -----------  ------------  -----------  -----------
  Net decrease in net
   assets                     (236,759)     (718,256)     (54,786)    (252,278)
                           -----------  ------------  -----------  -----------
NET ASSETS:
 Beginning of Period         1,501,445     2,219,701      255,554      507,832
                           -----------  ------------  -----------  -----------
 End of Period             $ 1,264,686  $  1,501,445  $   200,768  $   255,554
                           ===========  ============  ===========  ===========
</TABLE>
 
  Amounts designated as "--" are either $0 or have been rounded to $0.
 
 
The accompanying notes are an integral part of the financial statements.
 
                                                                               7

<PAGE>
 
 
STATEMENT OF CHANGES IN NET ASSETS (000)
- --------------------------------------------------------------------------------
SEI Liquid Asset Trust--for the fiscal years ended June 30
<TABLE>
<CAPTION>
                                ------------------------  --------------------
                                         PRIME               INSTITUTIONAL
                                      OBLIGATION                 CASH
                                ------------------------  --------------------
                                   1995         1994        1995       1994
                                ------------------------  --------------------
<S>                             <C>          <C>          <C>        <C>
OPERATIONS:
 Net investment income          $    52,597  $    31,230  $      93  $      58
 Net realized gain (loss) from
  security transactions                  55          (34)        --         --
                                -----------  -----------  ---------  ---------
 Net increase in net assets
  resulting from operations          52,652       31,196         93         58
                                -----------  -----------  ---------  ---------
DIVIDENDS DISTRIBUTED FROM:
 Net investment income:
 Class A                            (52,597)     (31,230)       (93)       (58)
 Class D                                 --           --         --         --
 Net realized gains:
 Class A                                 --           --         --         --
 Class D                                 --           --         --         --
                                -----------  -----------  ---------  ---------
 Total dividends distributed        (52,597)     (31,230)       (93)       (58)
                                -----------  -----------  ---------  ---------
CAPITAL SHARE TRANSACTIONS
 (ALL AT $1.00 PER SHARE):
 Class A:
 Proceeds from shares issued      9,162,056    8,520,028    163,880    261,773
 Shares issued in lieu of cash
  distributions                      11,333        7,599         --         --
 Cost of shares repurchased      (9,151,091)  (8,782,192)  (163,880)  (261,773)
                                -----------  -----------  ---------  ---------
 Increase (decrease) in net
  assets derived from Class A
  transactions                       22,298     (254,565)        --         --
                                -----------  -----------  ---------  ---------
 Class D
 Proceeds from shares issued             --           --         --         --
 Shares issued in lieu of cash
  distributions                          --           --         --         --
 Cost of shares repurchased              --           --         --         --
                                -----------  -----------  ---------  ---------
 Increase (decrease) in net
  assets derived from Class D
  transactions                           --           --         --         --
                                -----------  -----------  ---------  ---------
 Increase (decrease) in net
  assets derived from capital
  share transactions                 22,298     (254,565)        --         --
                                -----------  -----------  ---------  ---------
  Net increase (decrease) in
   net assets                        22,353     (254,599)        --         --
                                -----------  -----------  ---------  ---------
NET ASSETS:
 Beginning of Period                918,510    1,173,109         --         --
                                -----------  -----------  ---------  ---------
 End of Period                  $   940,863  $   918,510         --         --
                                ===========  ===========  =========  =========
</TABLE>
 
  Amounts designated as "--" are either $0 or have been rounded to $0.
 
 
The accompanying notes are an integral part of the financial statements.
 
8

<PAGE>
 
FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------
SEI Liquid Asset Trust--for the fiscal years ended June 30
 
For a Share Outstanding Throughout each Period
<TABLE>
<CAPTION>
           Net Asset                                Distributions  Distributions                                    Ratio of
             Value      Net        Realized and       from Net          from       Net Asset           Net Assets   Expenses
           Beginning Investment     Unrealized       Investment   Realized Capital Value End Total       End of    to Average
           of Period   Income   Gains on Securities    Income          Gains       of Period Return   Period (000) Net Assets
- -----------------------------------------------------------------------------------------------------------------------------
 <S>       <C>       <C>        <C>                 <C>           <C>              <C>       <C>      <C>          <C>
 TREASURY SECURITIES
 -------------------
 CLASS A
 1995        $1.00    $  0.05             --            $ (0.05)           --        $1.00    5.05%    1,254,888      0.44%
 1994         1.00       0.03             --              (0.03)           --         1.00    3.00     1,501,510      0.44
 1993         1.00       0.03             --              (0.03)           --         1.00    3.03     2,219,701      0.44
 1992         1.00       0.05             --              (0.05)           --         1.00    4.69     2,304,153      0.44
 1991         1.00       0.07             --              (0.07)           --         1.00    7.04     2,248,497      0.44
 1990         1.00       0.08             --              (0.08)           --         1.00    8.41     2,076,845      0.44
 1989         1.00       0.08             --              (0.08)           --         1.00    8.51     2,318,763      0.44
 1988         1.00       0.06             --              (0.06)           --         1.00    6.56     2,671,802      0.44
 1987         1.00       0.06             --              (0.06)           --         1.00    5.91     2,580,118      0.44
 1986         1.00       0.07             --              (0.07)           --         1.00    7.40     2,041,343      0.44
 CLASS D
 1995         1.00       0.05             --              (0.05)           --         1.00    4.69         9,798      0.79
 1994(1)      1.00       0.01             --              (0.01)           --         1.00    0.50**          23      0.79*
 GOVERNMENT SECURITIES
 ---------------------
 CLASS A
 1995        $1.00    $  0.05             --            $ (0.05)           --        $1.00    5.18%      200,768      0.44%
 1994         1.00       0.03             --              (0.03)           --         1.00    3.04       255,554      0.44
 1993         1.00       0.03             --              (0.03)           --         1.00    3.05       507,832      0.44
 1992         1.00       0.05             --              (0.05)           --         1.00    4.72       399,938      0.44
 1991         1.00       0.07             --              (0.07)           --         1.00    7.08       520,187      0.44
 1990         1.00       0.08             --              (0.08)           --         1.00    8.48       368,318      0.44
 1989         1.00       0.08             --              (0.08)           --         1.00    8.69       467,056      0.44
 1988         1.00       0.07             --              (0.07)           --         1.00    6.83       523,274      0.44
 1987         1.00       0.06             --              (0.06)           --         1.00    5.99       479,968      0.44
 1986         1.00       0.07             --              (0.07)           --         1.00    7.52       222,215      0.44
 PRIME OBLIGATION
 ----------------
 CLASS A
 1995        $1.00    $  0.05             --            $ (0.05)                     $1.00    5.20%      940,863      0.44%
 1994         1.00       0.03             --              (0.03)           --         1.00    3.08       918,509      0.44
 1993         1.00       0.03             --              (0.03)           --         1.00    3.07     1,173,109      0.44
 1992         1.00       0.05             --              (0.05)           --         1.00    4.73     1,515,554      0.44
 1991         1.00       0.07             --              (0.07)           --         1.00    7.36     1,729,845      0.44
 1990         1.00       0.08             --              (0.08)           --         1.00    8.57     1,804,367      0.44
 1989         1.00       0.09             --              (0.09)           --         1.00    8.85     2,160,859      0.44
 1988         1.00       0.07             --              (0.07)           --         1.00    7.12     2,224,159      0.44
 1987         1.00       0.06             --              (0.06)           --         1.00    6.08     1,851,072      0.44
 1986         1.00       0.07             --              (0.07)           --         1.00    7.58     1,469,066      0.44
 INSTITUTIONAL CASH*
 -------------------
 CLASS A
 1995        $1.00    $0.0003             --          $ (0.0003)           --        $1.00    4.94%           --      0.44%
 1994         1.00     0.0003             --            (0.0003)           --         1.00    2.60            --      0.44
 1993         1.00     0.0003             --            (0.0003)           --         1.00    2.83            --      0.44
 1992         1.00     0.0002             --            (0.0002)           --         1.00    3.47            --      0.44
 1991         1.00     0.0003         0.0001            (0.0003)      (0.0001)        1.00    7.12            --      0.42
 1990         1.00     0.0008         0.0003            (0.0008)      (0.0003)        1.00   10.22            --      0.44
 1989         1.00     0.0007         0.0002            (0.0007)      (0.0002)        1.00    8.49            --      0.44
 1988         1.00     0.0006         0.0001            (0.0006)      (0.0001)        1.00    4.02            --      0.44
 1987(2)      1.00     0.0003             --            (0.0003)           --         1.00    5.48            --      0.44
<CAPTION>
                                  Ratio of
                                    Net
            Ratio of   Ratio of  Investment
              Net      Expenses    Income
           Investment to Average to Average
             Income   Net Assets Net Assets
           to Average (Excluding (Excluding
           Net Assets  Waivers)   Waivers)
- -----------------------------------------------------------------------------------------------------------------------------
 <S>       <C>        <C>        <C>
 TREASURY SECURITIES
 -------------------
 CLASS A
 1995         4.93%      0.54%      4.83%
 1994         2.91       0.51       2.84
 1993         2.99       0.50       2.93
 1992         4.60       0.50       4.50
 1991         6.80       0.47       6.80
 1990         8.10       0.45       8.10
 1989         8.20       0.44       8.20
 1988         6.40       0.44       6.40
 1987         5.70       0.45       5.70
 1986         7.20       0.44       7.20
 CLASS D
 1995         5.15       0.89       5.05
 1994(1)      3.23*      0.98*      3.04*
 GOVERNMENT SECURITIES
 ---------------------
 CLASS A
 1995         5.04%      0.53%      4.95%
 1994         2.96       0.51       2.89
 1993         3.00       0.50       2.94
 1992         4.60       0.50       4.60
 1991         6.80       0.48       6.70
 1990         8.10       0.45       8.10
 1989         8.30       0.46       8.30
 1988         6.70       0.44       6.70
 1987         5.80       0.46       5.80
 1986         7.30       0.44       7.30
 PRIME OBLIGATION
 ----------------
 CLASS A
 1995         5.21%      0.53%      5.12%
 1994         3.03       0.51       2.96
 1993         3.04       0.50       2.98
 1992         4.70       0.49       4.60
 1991         7.10       0.47       7.10
 1990         8.30       0.45       8.30
 1989         8.50       0.44       8.50
 1988         6.90       0.44       6.90
 1987         5.90       0.45       5.90
 1986         7.30       0.44       7.30
 INSTITUTIONAL CASH*
 -------------------
 CLASS A
 1995         5.19%      0.44%      5.19%
 1994         2.63       0.44       2.63
 1993         2.66       0.44       2.66
 1992         3.50       0.44       3.50
 1991         5.90       0.42       5.90
 1990         7.80       0.44       7.80
 1989         6.80       0.44       6.80
 1988         5.20       0.44       5.20
 1987(2)      5.30       0.44       5.30
</TABLE>
 
(1) Treasury Securities Class D commenced operations on May 4, 1994.
(2) Institutional Cash Fund commenced operations on December 31, 1986.
 
* Annualized
** Not Annualized
 
  Amounts designated as "--" are either $0 or have been rounded to $0.
 
The accompanying notes are an integral part of the financial statements.
 
                                                                               9

<PAGE>
 
 
NOTES TO FINANCIAL STATEMENTS
- -------------------------------------------------------------------------
SEI Liquid Asset Trust--June 30, 1995
1. ORGANIZATION
 
SEI Liquid Asset Trust (the "Trust") was organized as a Massachusetts business
trust under a Declaration of Trust dated July 20, 1981.
  The Trust is registered under the Investment Company Act of 1940, as amended,
as a diversified, open-end management investment company with five portfolios:
the Treasury Securities Portfolio, the Government Securities Portfolio, the
Prime Obligation Portfolio, the Institutional Cash Portfolio and the Money Mar-
ket Portfolio (the "Portfolios"). The Trust is registered to offer Class A
shares of the portfolios and Class D (formerly the ProVantage Funds) shares of
the Treasury Securities Portfolio and the Prime Obligation Portfolio. The as-
sets of each Portfolio are segregated and a shareholder's interest is limited
to the Portfolio in which shares are held. As of June 30, 1995 the Money Market
Portfolio had not commenced operations.
 
2. SIGNIFICANT ACCOUNTING POLICIES
 
The following is a summary of significant accounting policies followed by the
Trust.
  Security Valuation--Investment securities are stated at amortized cost, which
approximates market value. Under this valuation method, purchase discounts and
premiums are accreted and amortized ratably to maturity and are included in in-
terest income.
  Federal Income Taxes--It is each Portfolio's intention to continue to qualify
as a regulated investment company and distribute all of its taxable income. Ac-
cordingly, no provision for Federal income taxes is required.
  Repurchase Agreements--Securities pledged as collateral for Repurchase Agree-
ments are held by the Portfolio's custodian bank until maturity of the Repur-
chase Agreement. Provisions of the Agreement and procedures adopted by the Man-
ager of the Trust ensure that the market value of the collateral, including ac-
crued interest thereon, is sufficient in the event of default by the
counterparty.
  The Trust also invests in tri-party repurchase agreements. Securities held as
collateral for tri-party repurchase agreements are maintained in a segregated
account by the broker's custodian bank until maturity of the repurchase agree-
ment. Provisions of the agreements ensure that the market value of the collat-
eral, including accrued interest thereon, is sufficient in the event of de-
fault.
  If the counterparty defaults and the value of the collateral declines or if
the counterparty enters an insolvency proceeding, realization of the collateral
by the Trust may be delayed or limited.
  Discount and Premium Amortization--All amortization is calculated using the
effective interest method over the holding period of the security. Amortization
of premiums and discounts is currently included in interest income.
  Expenses--Expenses of the Trust which are not directly associated to a spe-
cific Portfolio are allocated on the basis of relative net asset value of the
affected Portfolios.
  Classes--Expenses of a class of shares of beneficial interest are borne by
that class. Income, expenses and realized gains/losses are allocated to the re-
spective classes on the basis of relative daily net assets.
  Other--Security transactions are accounted for on the date the securities are
purchased or sold. Costs used in determining realized gains and losses on the
sale of investment securities are those of the specific securities sold. Dis-
tributions from net investment income are declared on a daily basis and are
payable on the first business day of the following month. Any net realized cap-
ital gains of the Portfolios are distributed to the shareholders of the af-
fected Portfolios annually.
 
3. MANAGEMENT, INVESTMENT ADVISORY AND DISTRIBUTION AGREEMENTS
 
SEI Financial Management Corporation (the "Manager") provided management, ad-
ministrative and shareholder services to the Trust for an annual fee, which is
calculated daily and paid monthly, of .42% of the average daily net assets of
each Portfolio with the exception of the Institutional Cash Portfolio for which
the fee is calculated at an annual rate of .36%. The Manager has agreed to bear
certain expenses of the Trust so that the total expenses do not exceed .44% of
average daily net assets annually. For the fiscal year ended June 30, 1995 the
manage-
 
10

<PAGE>
 
- --------------------------------------------------------------------------------
ment fee was $10,636,000 of which $2,332,000 was waived by the Manager in ac-
cordance with the expense limitation discussed above.
  In addition, the Trust and the Manager have entered into a separate Transfer
Agent Agreement with respect to Class D shares under which DST Systems, Inc. is
entitled to a fee of .15% of the average daily net assets of Class D plus out-
of-pocket costs.
  Wellington Management Company serves as the Investment Adviser of the Trust.
For its services, the Investment Adviser receives an annual fee equal to .075%
of the Trust's average daily net asset value up to $500 million and .02% of
such net asset value in excess of $500 million. At June 30, 1995, the Invest-
ment Adviser was a holder of beneficial interest in the Trust. The fees of the
Investment Adviser are paid monthly.
  SEI Financial Services Company ("SFS") acts as the distributor of the shares
of the Trust under a Distribution Agreement and Distribution Plans which pro-
vide for the Trust to reimburse SFS for its distribution expenses. Reimburse-
ment for expenses incurred by SFS may not exceed .30% of a Portfolio's average
daily net assets. Distribution expenses include, among other items, the compen-
sation and benefits of sales personnel incurred by SFS in connection with the
promotion and sale of shares. Distribution expenses not attributable to a spe-
cific Portfolio are allocated among the Portfolios on the basis of their rela-
tive average daily net assets.
  In addition, the Treasury Securities Portfolio and the Prime Obligation Port-
folio have registered an additional class of shares, Class D shares, for which
a separate distribution plan has been adopted. The Class D Distribution Plan
(the "Class D" Plan) provides for additional payments to the distributor of
 .25% of each of the Class D shares average daily net assets. As of the fiscal
year end, SFS is taking a fee under the Class D Plan of only .20% of each of
the Class D average daily net assets.
 
4. TRANSACTIONS WITH AFFILIATES
 
  Certain officers and/or Trustees of the Trust are also officers and/or Direc-
tors of the Manager or SFS. Compensation of officers and affiliated Trustees of
the Trust is paid by the Manager and/or SFS.
  CoreStates N.A., which is a Trust shareholder, acts as Custodian and Wire
Agent for the Trust.
 
5. CAPITAL LOSS CARRYOVERS
 
  At June 30, 1995, the Portfolios had a capital loss carryover, to the extent
provided in regulations, for Federal income tax purposes as follows:
 
<TABLE>
<S>                               <C>
Government Securities Portfolio:  $16,295 expiring in 2001
Prime Obligation
 Portfolio:                       $67,346 expiring in 2000
                                    5,140 expiring in 2003
</TABLE>
 
                                                                              11

<PAGE>
 
 
REPORT OF INDEPENDENT ACCOUNTANTS
- --------------------------------------------------------------------------------
To the Board of Trustees and Shareholders of 
SEI Liquid Asset Trust:
 
In our opinion, the accompanying statement of net assets and statement of
assets and liabilities, and the related statements of operations and of changes
in net assets and the financial highlights present fairly, in all material
respects, the financial position of the Treasury Securities Portfolio, the
Government Securities Portfolio, the Prime Obligation Portfolio, the
Institutional Cash Portfolio and the Money Market Portfolio (constituting SEI
Liquid Asset Trust, hereafter referred to as the "Trust") at June 30, 1995, the
results of each of their operations, the changes in each of their net assets
and the financial highlights for each of the respective periods presented, in
conformity with generally accepted accounting principles. These financial
statements and financial highlights (hereafter referred to as "financial
statements") are the responsibility of the Trust's management; our
responsibility is to express an opinion on these financial statements based on
our audits. We conducted our audits of these financial statements in accordance
with generally accepted auditing standards which require that we plan and
perform the audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements, assessing the accounting principles used and significant estimates
made by management, and evaluating the overall financial statement
presentation. We believe that our audits, which included confirmation of
securities at June 30, 1995, by correspondence with the custodian, provide a
reasonable basis for the opinion expressed above.
 
PRICE WATERHOUSE LLP
 
Philadelphia, Pennsylvania
August 11, 1995
 




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