PIMCO FUNDS MULTI MANAGER SERIES
497, 2000-06-02
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<PAGE>

PIMCO Funds Prospectus

Multi-Manager Series

June 1, 2000

Share Class
D

----------------------------
GROWTH STOCK FUNDS
Growth Fund
Select Growth Fund
Target Fund

----------------------------
BLEND STOCK FUNDS
Capital Appreciation Fund
Mid-Cap Fund

----------------------------
VALUE STOCK FUNDS
Equity Income Fund
Renaissance Fund
Value Fund

----------------------------
ENHANCED INDEX STOCK FUNDS
Tax-Efficient Equity Fund

----------------------------
SECTOR-RELATED STOCK FUNDS
Innovation Fund
Global Innovation Fund


                                                           [LOGO OF PIMCO FUNDS]

This cover is not part of the Prospectus.
<PAGE>

            PIMCO Funds Prospectus

PIMCO       This Prospectus describes 11 mutual funds offered by PIMCO Funds:
Funds:      Multi-Manager Series. The Funds provide access to the professional
Multi-      investment advisory services offered by PIMCO Advisors L.P. and
Manager     its investment management affiliates. As of March 31, 2000, PIMCO
Series      Advisors and its affiliates managed approximately $264 billion,
            including assets for 67 of the 200 largest U.S. corporations.
June 1,
2000        The Prospectus explains what you should know about the Funds
            before you invest. Please read it carefully.
Share
Class D     The Securities and Exchange Commission has not approved or
            disapproved these securities or determined if this Prospectus is
            truthful or complete. Any representation to the contrary is a
            criminal offense.

1  PIMCO Funds: Multi-Manager Series
<PAGE>

            Table of Contents

<TABLE>
         <S>                                                               <C>
         Summary Information..............................................   3
         Fund Summaries
           Capital Appreciation Fund......................................   5
           Equity Income Fund.............................................   7
           Global Innovation Fund.........................................   9
           Growth Fund....................................................  11
           Innovation Fund................................................  13
           Mid-Cap Fund...................................................  15
           Renaissance Fund...............................................  17
           Select Growth Fund.............................................  19
           Target Fund....................................................  21
           Tax-Efficient Equity Fund......................................  23
           Value Fund.....................................................  25
         Summary of Principal Risks.......................................  27
         Management of the Funds..........................................  29
         How Fund Shares Are Priced.......................................  32
         How to Buy and Sell Shares.......................................  33
         Fund Distributions...............................................  35
         Tax Consequences.................................................  36
         Characteristics and Risks of Securities and Investment
          Techniques......................................................  36
         Financial Highlights.............................................  43
</TABLE>

                                                                   Prospectus  2
<PAGE>

             Summary Information

             The table below lists the investment objectives and compares
             certain investment characteristics of the Funds. Other important
             characteristics are described in the individual Fund Summaries
             beginning on page 5.

<TABLE>
<CAPTION>
                                                                                                              Approximate
                PIMCO                Investment               Main                                            Number of
                Fund                 Objective                Investments                                     Holdings
-------------------------------------------------------------------------------------------------------------------------
<S>             <C>                  <C>                      <C>                                             <C>
Growth Stock    Growth               Long-term growth of      Common stocks of companies with                 35-40
Funds                                capital; income is       market capitalizations of at least $5 billion
                                     an incidental
                                     consideration
           --------------------------------------------------------------------------------------------------------------
                Select Growth        Long-term growth of      Common stocks of companies with                 15-25
                                     capital; income is an    market capitalizations of at least $10 billion
                                     incidental consideration
           --------------------------------------------------------------------------------------------------------------
                Target               Capital appreciation;    Common stocks of companies with                 40-60
                                     no consideration is      market capitalizations of between $1 billion
                                     given to income          and $10 billion
-------------------------------------------------------------------------------------------------------------------------
Blend Stock     Capital Appreciation Growth of capital        Common stocks of companies with market          60-100
Funds                                                         capitalizations of at least $1 billion that
                                                              have improving fundamentals and whose stock is
                                                              reasonably valued by the market
           --------------------------------------------------------------------------------------------------------------
                Mid-Cap              Growth of capital        Common stocks of companies with market          60-100
                                                              capitalizations of more than $500 million
                                                              (excluding the largest 200 companies) that have
                                                              improving fundamentals and whose stock is
                                                              reasonably valued by the market
-------------------------------------------------------------------------------------------------------------------------
Value Stock     Equity Income        Current income as a      Income-producing common stocks of               40-50
Funds                                primary objective;       companies with market capitalizations of
                                     long-term growth of      more than $2 billion
                                     capital as a secondary
                                     objective
           --------------------------------------------------------------------------------------------------------------
                Renaissance          Long-term growth of      Common stocks of companies with below-average   50-80
                                     capital and income       valuations whose business fundamentals are
                                                              expected to improve
           --------------------------------------------------------------------------------------------------------------
                Value                Long-term growth of      Common stocks of companies with market          40
                                     capital and income       capitalizations of more than $10 billion and
                                                              below-average valuations whose business
                                                              fundamentals are expected to improve
-------------------------------------------------------------------------------------------------------------------------
Enhanced Index  Tax-Efficient Equity Maximum after-tax        A broadly diversified portfolio of at least 200 More than
Stock Funds                          growth of capital        common stocks of companies represented in       200
                                                              the S&P 500 Index with market capitalizations
                                                              of more than $5 billion
-------------------------------------------------------------------------------------------------------------------------
Sector-Related  Innovation           Capital appreciation;    Common stocks of technology-related             40
Stock Funds                          no consideration is      companies with market capitalizations of more
                                     given to income          than $200 million
           --------------------------------------------------------------------------------------------------------------
                Global Innovation    Capital appreciation;    Common stocks of U.S. and non-U.S.              30-60
                                     no consideration is      technology-related companies with market
                                     given to income          capitalizations of more than $200 million
<CAPTION>
                Approximate
                Capitalization
                Range
-------------------------------------------------------------------------------------------------------------------------
<S>             <C>
Growth Stock    At least $5 billion
Funds
           --------------------------------------------------------------------------------------------------------------
                At least $10 billion
           --------------------------------------------------------------------------------------------------------------
                Between $1 billion and
                $10 billion
-------------------------------------------------------------------------------------------------------------------------
Blend Stock     At least $1 billion
Funds
           --------------------------------------------------------------------------------------------------------------
                More than $500 million
                (excluding the largest
                200 companies)
-------------------------------------------------------------------------------------------------------------------------
Value Stock     More than $2 billion
Funds
           --------------------------------------------------------------------------------------------------------------
                All capitalizations
           --------------------------------------------------------------------------------------------------------------
                More than $10 billion
-------------------------------------------------------------------------------------------------------------------------
Enhanced Index  More than $5 billion
Stock Funds
-------------------------------------------------------------------------------------------------------------------------
Sector-Related  More than $200 million
Stock Funds
           --------------------------------------------------------------------------------------------------------------
                More than $200 million
</TABLE>

Fund         The Funds provide a broad range of investment choices. The
Descriptions,following Fund Summaries identify each Fund's investment
Performance  objective, principal investments and strategies, principal risks,
and Fees     performance information and fees and expenses. A more detailed
             "Summary of Principal Risks" describing principal risks of
             investing in the Funds begins after the Fund Summaries.

             It is possible to lose money on investments in the Funds. An
             investment in a Fund is not a deposit of a bank and is not
             guaranteed or insured by the Federal Deposit Insurance
             Corporation or any other government agency.


3 PIMCO Funds: Multi-Manager Series
<PAGE>





                      (This page left blank intentionally.)


                                                                   Prospectus  4
<PAGE>

            PIMCO Capital Appreciation Fund

--------------------------------------------------------------------------------
<TABLE>
<S>  <C>
Principal     Investment           Fund Focus             Approximate Capitalization Range
Investments   Objective            Larger capitalization  At least $1 billion
and           Seeks growth         common stocks
Strategies    of capital

              Fund Category        Approximate Number     Dividend Frequency
              Blend Stocks         of Holdings            At least annually
</TABLE>                           60-100

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with larger market capitalizations that have improving
            fundamentals (based on growth criteria) and whose stock is
            reasonably valued by the market (based on value criteria).

             In making investment decisions for the Fund, the portfolio
            management team considers the 1,000 largest publicly traded
            companies (in terms of market capitalization) in the U.S. The team
            screens the stocks in this universe for a series of growth
            criteria, such as dividend growth, earnings growth, relative
            growth of earnings over time (earnings momentum) and the company's
            history of meeting earnings targets (earnings surprise), and also
            value criteria, such as price-to-earnings, price-to-book and
            price-to-cash flow ratios. The team then selects individual stocks
            by subjecting the top 10% of the stocks in the screened universe
            to a rigorous analyses of company factors, such as strength of
            management, competitive industry position, and business prospects,
            and financial statement data, such as earnings, cash flows and
            profitability. The team may interview company management in making
            investment decisions. The Fund's capitalization criteria applies
            at the time of investment.

             The portfolio management team rescreens the universe frequently
            and seeks to consistently achieve a favorable balance of growth
            and value characteristics for the Fund. The team looks to sell a
            stock when it falls below the median ranking, has negative
            earnings surprises, or shows poor price performance relative to
            all stocks in the Fund's capitalization range or to companies in
            the same business sector. A stock may also be sold if its
            weighting in the portfolio becomes excessive (normally above 2% of
            the Fund's investments).

             The Fund intends to be fully invested in common stock (aside from
            certain cash management practices) and will not make defensive
            investments in response to unfavorable market and other
            conditions.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

             . Market Risk           . Growth Securities Risk  . Management Risk
             . Issuer Risk           . Focused Investment Risk
             . Value Securities Risk . Credit Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. For periods prior to the inception of the
            Fund's Class D shares (4/8/98), performance information shown in
            the bar chart (including the information to its right) and the
            Average Annual Total Returns table is based on the performance of
            the Fund's Institutional Class shares, which are offered in a
            different prospectus. The prior Institutional Class performance
            has been adjusted to reflect the actual distribution and/or
            service (12b-1) fees and other expenses paid by Class D shares.
            Past performance is no guarantee of future results.


5 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Capital Appreciation Fund (continued)

            Calendar Year Total Returns -- Class D


                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (10/1/99-
                                                           12/31/99)     23.79%
                                                           --------------------
                                                           Lowest (7/1/98-
                                                           9/30/98)     -14.22%

                                    [GRAPH]

                                 Annual Return

           92      93      94      95      96      97      98      99
         7.08%  17.24%  -4.64%  36.61%  26.30%  33.70%  17.14%  22.24%

                   Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
         <S>                                            <C>    <C>     <C>
                                                                       Fund Inception
                                                        1 Year 5 Years (3/8/91)(/3/)
            -------------------------------------------------------------------------
         Class D                                        22.24% 26.99%  19.60%
            -------------------------------------------------------------------------
         S&P 500 Index(/1/)                             21.04% 28.56%  19.75%
            -------------------------------------------------------------------------
         Lipper Capital Appreciation Fund Average(/2/)  41.82% 22.88%  16.55%
            -------------------------------------------------------------------------
</TABLE>

            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Capital Appreciation Fund Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that have an investment objective of maximum
                capital appreciation. It does not take into account sales
                charges.
            (3) The Fund began operations on 3/8/91. Index comparisons begin
                on 2/28/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment) None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.45%      0.25%               0.40%           1.10%
            --------------------------------------------------------------------

            (1) The Fund's administration agreement includes a plan for Class
                D shares that has been adopted in conformity with the
                requirements set forth in Rule 12b-1 under the Investment
                Company Act of 1940. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.65% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees are deemed not to be "service
                fees," Class D shareholders may, depending on the length of
                time the shares are held, pay more than the economic
                equivalent of the maximum front-end sales charges permitted by
                relevant rules of the NASD.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that its not reflected under Distribution
                and/or Service (12b-1) Fees.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $112       $350                $606            $1,340
            --------------------------------------------------------------------
</TABLE>


                                                                   Prospectus  6
<PAGE>

            PIMCO Equity Income Fund

--------------------------------------------------------------------------------
<TABLE>

<S>           <C>                             <C>                              <C>
Principal     Investment Objective            Fund Focus                       Approximate Capitalization Range
Investments   Seeks current income as a       Income producing common          More than $2 billion
and           primary objective, and          stocks with potential
Strategies    long-term growth of capital     for capital appreciation
              as a secondary objective

              Fund Category                   Approximate Number of Holdings   Dividend Frequency
              Value Stocks                    40-50                            Quarterly
</TABLE>


            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in income-producing (e.g.,
            dividend-paying) common stocks of companies with market
            capitalizations of more than $2 billion at the time of investment.
            The Fund may also invest in convertible securities and preferred
            stocks.

             The Fund's initial selection universe consists of the 1,000
            largest publicly traded companies (in terms of market
            capitalization) in the U.S. The portfolio managers classify the
            universe by industry. They then identify the most undervalued
            stocks in each industry based mainly on relative P/E ratios,
            calculated both with respect to trailing operating earnings and
            forward earnings estimates. From this group of stocks, the Fund
            buys approximately 25 stocks with the highest dividend yields. The
            portfolio managers then screen the most undervalued companies in
            each industry by dividend yield to identify the highest yielding
            stocks in each industry. From this group, the Fund buys
            approximately 25 additional stocks with the lowest P/E ratios.

             In selecting stocks, the portfolio managers consider quantitative
            factors such as price momentum (based on changes in stock price
            relative to changes in overall market prices), earnings momentum
            (based on analysts' earnings per share estimates and revisions to
            those estimates), relative dividend yields, valuation relative to
            the overall market and trading liquidity. The portfolio managers
            may replace a stock when a stock within the same industry group
            has a considerably higher dividend yield or lower valuation than
            the Fund's current holding.

             The Fund may invest up to 15% of its assets in foreign
            securities, usually in the form of American Depository Receipts
            (ADRs). In response to unfavorable market and other conditions,
            the Fund may make temporary investments of some or all of its
            assets in high-quality fixed income securities. This would be
            inconsistent with the Fund's investment objective and principal
            strategies.

--------------------------------------------------------------------------------
Principal Risks
            Among the principal risks of investing in the Fund, which could
            adversely affect its net asset value, yield and total return, are:

             . Market Risk           . Foreign Investment Risk . Credit Risk
             . Issuer Risk           . Currency Risk           . Management Risk
             . Value Securities Risk . Interest Rate Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. For periods prior to the inception of the
            Fund's Class D shares (4/8/98), performance information shown in
            the bar chart (including the information to its right) and the
            Average Annual Total Returns table is based on the performance of
            the Fund's Institutional Class shares, which are offered in a
            different prospectus. The prior Institutional Class performance
            has been adjusted to reflect the actual distribution and/or
            service (12b-1) fees and other expenses paid by Class D shares.
            Prior to May 8, 2000, the Fund had a different sub-adviser and
            would not necessarily have achieved the performance results shown
            on the next page under its current investment management
            arrangements. Past performance is no guarantee of future results.

7  PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Equity Income Fund (continued)

            Calendar Year Total Returns -- Class D


                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (4/1/99-
                                                           6/30/99)      15.98%
                                                           --------------------
                                                           Lowest (7/1/98-
                                                           9/30/98)     -10.99%

                                    [GRAPH]

                                 Annual Return

           92      93      94      95      96      97      98      99
        14.29%   8.04%  -2.00%  32.94%  21.00%  30.87%   8.07%  -2.22%


                   Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
         <S>                                     <C>    <C>     <C>
                                                                Fund Inception
                                                 1 Year 5 Years (3/8/91)(/3/)
            ------------------------------------------------------------------
         Class D                                 -2.22%  17.34% 13.83%
            ------------------------------------------------------------------
         S&P 500 Index(/1/)                      21.04%  28.56% 19.75%
            ------------------------------------------------------------------
         Lipper Equity Income Fund Average(/2/)   4.88%  17.92% 14.28%
            ------------------------------------------------------------------
</TABLE>

            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Equity Income Fund Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that seek relatively higher growth of income
                through investing 60% or more of their portfolios in equities.
                It does not take into account sales charges.
            (3) The Fund began operations on 3/8/91. Index comparisons begin
                on 2/28/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.45%      0.25%               0.40%           1.10%
            --------------------------------------------------------------------

            (1) The Fund's administration agreement includes a plan for Class
                D shares that has been adopted in conformity with the
                requirements set forth in Rule 12b-1 under the Investment
                Company Act of 1940. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.65% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees are deemed not to be "service
                fees," Class D shareholders may, depending on the length of
                time the shares are held, pay more than the economic
                equivalent of the maximum front-end sales charges permitted by
                relevant rules of the NASD.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $112       $350                $606            $1,340
            --------------------------------------------------------------------
</TABLE>

                                                                   Prospectus  8
<PAGE>

            PIMCO Global Innovation Fund

<TABLE>

------------------------------------------------------------------------------------------------------------------------
<S>           <C>                                 <C>                                  <C>
Principal     Investment Objective                 Fund Focus                          Approximate Capitalization Range
Investments   Seeks capital appreciation; no       Common stocks of U.S. and non-      More than $200 million
and           consideration is given to income     U.S. technology-related companies
Strategies                                                                             Dividend Frequency
              Fund Category                        Approximate Number of Holdings      At least annually
              Sector-Related Stocks                30-60
</TABLE>

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of U.S. and
            non-U.S. companies which utilize new, creative or different, or
            "innovative," technologies to gain a strategic competitive
            advantage in their industry, as well as companies that provide and
            service those technologies. The Fund identifies its investment
            universe of technology-related companies primarily by reference to
            classifications made by independent firms, such as Standard &
            Poor's (for example, companies classified as "Information
            Technology" companies), and by identifying companies that derive a
            substantial portion of their revenues from the manufacture, sale
            and/or service of technological products. Although the Fund
            emphasizes companies which utilize technologies, it is not
            required to invest exclusively in a particular business sector or
            industry.

              The portfolio manager selects stocks for the Fund using a
            "growth" style. The portfolio manager seeks to identify
            technology-related companies with well-defined "wealth creating"
            characteristics, including superior earnings growth (relative to
            companies in the same industry or the market as a whole), high
            profitability and consistent, predictable earnings. In addition,
            through fundamental research, the portfolio manager seeks to
            identify companies that are gaining market share, have superior
            management and possess a sustainable competitive advantage, such
            as superior or innovative products, personnel and distribution
            systems. The Fund looks to sell a stock when the portfolio manager
            believes that earnings or market sentiment are disappointing, if
            the company does not meet or exceed consensus estimates on
            revenues and/or earnings or if an alternative investment is more
            attractive.

              Although the Fund invests principally in common stocks, the Fund
            may also invest in other types of equity securities, including
            preferred stocks and convertible securities. The Fund will invest
            in the securities of issuers located in at least three countries
            (one of which may be the United States). Although the Fund
            normally invests in securities traded principally in the
            securities markets of developed countries, the Fund has no
            prescribed limits on geographic asset distribution and may invest
            in any foreign securities market in the world, including in
            emerging markets. The Fund may utilize foreign currency exchange
            contracts and derivative instruments (such as stock index futures
            contracts), primarily for risk management or hedging purposes.

              In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>

              <S>                         <C>                          <C>
              . Market Risk               . Derivatives Risk           . Leveraging Risk
              . Issuer Risk               . Foreign Investment Risk    . Credit Risk
              . Growth Securities Risk    . Emerging Markets Risk      . Management Risk
              . Smaller Company Risk      . Currency Risk
              . Liquidity Risk            . Focused Investment Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The Fund commenced operations in December 1999 and does not yet
Information have a full calendar year of performance. Thus, no bar chart or
            Average Annual Total Returns table is included for the Fund.

9  PIMCO Funds: Multi-Manager Series

<PAGE>

            PIMCO Global Innovation Fund (continued)

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets):

<TABLE>
         <S>      <C>      <C>               <C>           <C>            <C>         <C>
                           Distribution                    Total Annual
                  Advisory and/or Service    Other         Fund Operating Fee         Net
                  Fees     (12b-1) Fees(/1/) Expenses(/2/) Expenses       Waiver(/3/) Expenses(/3/)
            ---------------------------------------------------------------------------------------
         Class D  1.00%    0.25%             0.64%         1.89%          0.04%       1.85%
            ---------------------------------------------------------------------------------------
</TABLE>
            (1)  The Fund's administration agreement includes a plan for Class
                 D shares that has been adopted in conformity with the
                 requirements set forth in Rule 12b-1 under the Investment
                 Company Act of 1940. Up to 0.25% per year of the total
                 Administrative Fee paid under the administration agreement
                 may be Distribution and/or Service (12b-1) Fees. The Fund
                 will pay a total of 0.85% per year under the administration
                 agreement regardless of whether a portion or none of the
                 0.25% authorized under the plan is paid under the plan.
                 Please see "Management of the Funds--Administrative Fees" for
                 details. The Fund intends to treat any fees paid under the
                 plan as "service fees" for purposes of applicable rules of
                 the National Association of Securities Dealers, Inc. (the
                 "NASD"). To the extent that such fees are deemed not to be
                 "service fees," Class D shareholders may, depending on the
                 length of time the shares are held, pay more than the
                 economic equivalent of the maximum front-end sales charges
                 permitted by relevant rules of the NASD.
            (2)  Other Expenses, which is based on estimated amounts for the
                 Fund's initial fiscal year, reflects the portion of the
                 Administrative Fee paid by the class that is not reflected
                 under Distribution and/or Service (12b-1) Fees, and 0.04%
                 representing the Fund's organizational expenses as attributed
                 to the class ("Organizational Expenses").
            (3) Net Expenses reflect the effect of a contractual agreement by
                PIMCO Advisors to waive, reduce or reimburse its
                Administrative Fee for Class D shares in an amount that, in
                essence, is equal to the Fund's Organizational Expenses
                attributed to the class. Because the Organizational Expenses
                will all be accounted for in the Fund's initial fiscal year,
                the Fund's reasonable expectation is that the relevant
                conditions will not continue after the Fund's fiscal year
                ending June 30, 2000.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.(/1/)

<TABLE>
         <S>      <C>                    <C>
                  Year 1                 Year 3
            -----------------------------------
         Class D  $188                   $582
            -----------------------------------
</TABLE>
            (1) The Examples are based on the Net Expenses shown in the
               preceding table.
                                                                   Prospectus
                                                                              10
<PAGE>

            PIMCO Growth Fund

<TABLE>


------------------------------------------------------------------------------------------------------
<S>           <C>                   <C>                              <C>
Principal     Investment Objective  Fund Focus                        Approximate Capitalization Range
Investments   Seeks long-term       Larger capitalization             At least $5 billion
and           growth of capital;    common stocks
Strategies    income is an                                            Dividend Frequency
              incidental            Approximate Number of Holdings    At least annually
              consideration         35-40

              Fund Category
              Growth Stocks
</TABLE>

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of "growth"
            companies with market capitalizations of at least $5 billion at
            the time of investment.

             The portfolio manager selects stocks for the Fund using a
            "growth" style. The portfolio manager seeks to identify companies
            with well-defined "wealth creating" characteristics, including
            superior earnings growth (relative to companies in the same
            industry or the market as a whole), high profitability and
            consistent, predictable earnings. In addition, through fundamental
            research, the portfolio manager seeks to identify companies that
            are gaining market share, have superior management and possess a
            sustainable competitive advantage, such as superior or innovative
            products, personnel and distribution systems. The Fund looks to
            sell a stock when the portfolio manager believes that its
            earnings, market sentiment or relative performance are
            disappointing or if an alternative investment is more attractive.

             The Fund may also invest in other kinds of equity securities,
            including preferred stocks and convertible securities. The Fund
            may invest up to 15% of its assets in foreign securities, usually
            in the form of American Depository Receipts (ADRs).

             In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>

             <S>                         <C>                           <C>
             . Market Risk               . Foreign Investment Risk     . Credit Risk
             . Issuer Risk               . Currency Risk               . Management Risk
             . Growth Securities Risk    . Focused Investment Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart, the information to its
            right and the Average Annual Total Returns table show performance
            of the Fund's Class C shares, which are offered in a different
            prospectus. This is because the Fund has not had Class D shares
            outstanding for a full calendar year. Although Class D and Class C
            shares would have similar annual returns (because all of the
            Fund's shares represent interests in the same portfolio of
            securities), Class D performance would be higher than Class C
            performance because of the lower expenses paid by Class D shares.
            The Class C performance in the bar chart and the information to
            its right do not reflect the impact of sales charges (loads). If
            they did, the returns would be lower than those shown. Unlike the
            bar chart, performance figures for Class C shares in the Average
            Annual Total Returns table reflect the impact of sales charges.

             For periods prior to the inception of Class D shares (11/1/99),
            the Average Annual Total Returns table also shows estimated
            historical performance for Class D shares based on the performance
            of Class C shares, adjusted to reflect that there are no sales
            charges and lower distribution and/or service (12b-1) fees paid by
            Class D shares. Prior to March 6, 1999, the Fund had a different
            sub-adviser and would not necessarily have achieved the
            performance results shown on the next page under its current
            investment management arrangements. Past performance is no
            guarantee of future results.

11 PIMCO Funds: Multi-Manager Series

<PAGE>

            PIMCO Growth Fund (continued)

            Calendar Year Total Returns -- Class C


                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (10/1/99-
                                                           12/31/99)     36.21%
                                                           --------------------
                                                           Lowest (7/1/90-
                                                           9/30/90)     -13.14%

                                    [GRAPH]

                                 Annual Return

   90      91      92      93      94      95      96      97      98      99
 0.29%  41.88%   2.08%   9.32%  -0.75%  27.47%  17.52%  21.84%  38.90%  39.83%

                   Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
         <S>                              <C>    <C>     <C>      <C>
                                                                  Fund Inception
                                          1 Year 5 Years 10 Years (2/24/84)(/3/)
            --------------------------------------------------------------------
         Class C                          38.83% 28.80%  18.77%   19.25%
            --------------------------------------------------------------------
         Class D                          40.86% 29.75%  19.66%   20.14%
            --------------------------------------------------------------------
         S&P 500 Index(/1/)               21.04% 28.56%  18.21%   18.60%
            --------------------------------------------------------------------
         Lipper Growth Fund Average(/2/)  29.23% 25.03%  16.48%   16.27%
            --------------------------------------------------------------------
</TABLE>

            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Growth Fund Average is a total return performance
                average of funds tracked by Lipper Analytical Services, Inc.
                that invest in companies with long-term earnings expected to
                grow significantly faster than the earnings of the stocks
                represented in the major unmanaged stock indexes. It does not
                take into account sales charges.
            (3) The Fund began operations on 2/24/84. Index comparisons begin
                on 2/29/84.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment) None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.50%      0.25%               0.40%           1.15%
            --------------------------------------------------------------------

            (1) The Fund's administration agreement includes a plan for Class
                D shares that has been adopted in conformity with the
                requirements set forth in Rule 12b-1 under the Investment
                Company Act of 1940. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.65% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees are deemed not to be "service
                fees," Class D shareholders may, depending on the length of
                time the shares are held, pay more than the economic
                equivalent of the maximum front-end sales charges permitted by
                relevant rules of the NASD.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $117       $365                $633            $1,398
            --------------------------------------------------------------------
</TABLE>


                                                                   Prospectus 12
<PAGE>

            PIMCO Innovation Fund

--------------------------------------------------------------------------------
<TABLE>
<S>           <C>                  <C>                           <C>
Principal     Investment           Fund Focus                    Approximate Capitalization Range
Investments   Objective            Common stocks of              More than $200 million
and           Seeks capital        technology-related
Strategies    appreciation;        companies                     Dividend Frequency
              no consideration                                   At least annually
              is given to income

              Fund                 Approximate Number of Holdings
              Category             40
              Sector-Related
</TABLE>      Stocks

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            which utilize new, creative or different, or "innovative,"
            technologies to gain a strategic competitive advantage in their
            industry, as well as companies that provide and service those
            technologies. The Fund identifies its investment universe of
            technology-related companies primarily by reference to
            classifications made by independent firms, such as Standard &
            Poor's (for example, companies classified as "Information
            Technology" companies), and by identifying companies that derive a
            substantial portion of their revenues from the manufacture, sale
            and or/service of technological products. Although the Fund
            emphasizes companies which utilize technologies, it is not
            required to invest exclusively in companies in a particular
            business sector or industry.

             The portfolio manager selects stocks for the Fund using a
            "growth" style. The portfolio manager seeks to identify
            technology-related companies with well-defined "wealth creating"
            characteristics, including superior earnings growth (relative to
            companies in the same industry or the market as a whole), high
            profitability and consistent, predictable earnings. In addition,
            through fundamental research, the portfolio manager seeks to
            identify companies that are gaining market share, have superior
            management and possess a sustainable competitive advantage, such
            as superior or innovative products, personnel and distribution
            systems. The Fund looks to sell a stock when the portfolio manager
            believes that earnings or market sentiment are disappointing, if
            the company does not meet or exceed consensus estimates on
            revenues and/or earnings or if an alternative investment is more
            attractive.

             Although the Fund invests principally in common stocks, the Fund
            may also invest in other kinds of equity securities, including
            preferred stocks and convertible securities. The Fund may invest
            up to 15% of its assets in foreign securities, usually in the form
            of American Depository Receipts (ADRs).

             In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>

             <S>                       <C>                       <C>
             . Market Risk             . Smaller Company Risk    . Currency Risk
             . Issuer Risk             . Liquidity Risk          . Credit Risk
             . Focused Investment Risk . Foreign Investment Risk . Management Risk
             . Growth Securities Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. For periods prior to the inception of the
            Fund's Class D shares (4/8/98), performance information shown in
            the bar chart (including the information to its right) and the
            Average Annual Total Returns table show performance of the Fund's
            Class A shares, which are offered in a different prospectus. The
            prior Class A performance has been adjusted to reflect that there
            are no sales charges (loads) paid by Class D shares. Prior to
            March 6, 1999, the Fund had a different sub-adviser and would not
            necessarily have achieved the performance results shown on the
            next page under its current investment management arrangements.
            Past performance is no guarantee of future results.

13 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Innovation Fund (continued)

            Calendar Year Total Returns -- Class D


                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (10/1/99-
                                                           12/31/99)     80.23%
                                                           --------------------
                                                           Lowest (1/1/97-
                                                           3/31/97)     -12.56%

                                    [GRAPH]

                                 Annual Return

                   95        96        97        98        99
                45.33%    23.60%     9.03%    79.65%   140.42%


                   Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
         <S>                                              <C>     <C>     <C>
                                                                          Fund Inception
                                                          1 Year  5 Years (12/22/94)(/3/)
            -----------------------------------------------------------------------------
         Class D                                          140.42%  53.27% 52.89%
            -----------------------------------------------------------------------------
         S&P 500 Index(/1/)                                21.04%  28.56% 28.56%
            -----------------------------------------------------------------------------
         Lipper Science and Technology Fund Average(/2/)  134.77%  40.91% 40.91%
            -----------------------------------------------------------------------------
</TABLE>

            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Science and Technology Fund Average is a total
                return performance average of funds tracked by Lipper
                Analytical Services, Inc. that invest at least 65% of their
                assets in science and technology stocks. It does not take into
                account sales charges.
            (3) The Fund began operations on 12/22/94. Index comparisons begin
                on 12/31/94.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment) None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.65%      0.25%               0.40%           1.30%
            --------------------------------------------------------------------

            (1) The Fund's administration agreement includes a plan for Class
                D shares that has been adopted in conformity with the
                requirements set forth in Rule 12b-1 under the Investment
                Company Act of 1940. Up to 0.25% per year of the total
                Administrative Fees paid under the administration agreement
                may be Distribution and/or Service (12b-1) Fees. The Fund will
                pay a total of 0.65% per year under the administration
                agreement regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees are deemed not to be "service
                fees," Class D shareholders may, depending on the length of
                time the shares are held, pay more than the economic
                equivalent of the maximum front-end sales charges permitted by
                relevant rules of the NASD.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $132       $412                $713            $1,568
            --------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 14
<PAGE>

            PIMCO Mid-Cap Fund

--------------------------------------------------------------------------------
<TABLE>
<S>           <C>                <C>                              <C>
Principal     Investment         Fund Focus                       Approximate Capitalization Range
Investments   Objective          Medium                           More than $500 million (excluding
and           Seeks growth of    capitalization                   the largest 200 companies)
Strategies    capital            common stocks

              Fund               Approximate Number of Holdings   Dividend Frequency
              Category           60-100                           At least annually
              Blend Stocks
</TABLE>


            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with medium market capitalizations that have improving
            fundamentals (based on growth criteria) and whose stock is
            reasonably valued by the market (based on value criteria).

             In making investment decisions for the Fund, the portfolio
            management team considers companies in the U.S. market with market
            capitalizations of more than $500 million, but excluding the 200
            largest capitalization companies. The team screens the stocks in
            this universe for a series of growth criteria, such as dividend
            growth, earnings growth, relative growth of earnings over time
            (earnings momentum) and the company's history of meeting earnings
            targets (earnings surprise), and also value criteria, such as
            price-to-earnings, price-to-book and price-to-cash flow ratios.
            The team then selects individual stocks by subjecting the top 10%
            of the stocks in the screened universe to a rigorous analyses of
            company factors, such as strength of management, competitive
            industry position, and business prospects, and financial statement
            data, such as earnings, cash flows and profitability. The team may
            interview company management in making investment decisions. The
            Fund's capitalization criteria applies at the time of investment.

             The portfolio management team rescreens the universe frequently
            and seeks to consistently achieve a favorable balance of growth
            and value characteristics for the Fund. The team looks to sell a
            stock when it falls below the median ranking, has negative
            earnings surprises, or shows poor price performance relative to
            all stocks in the Fund's capitalization range or to companies in
            the same business sector. A stock may also be sold if its
            weighting in the portfolio becomes excessive (normally above 2% of
            the Fund's investments).

             The Fund intends to be fully invested in common stock (aside from
            certain cash management practices) and will not make defensive
            investments in response to unfavorable market and other
            conditions.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>

             <S>                      <C>                       <C>
             . Market Risk            . Growth Securities Risk  . Focused Investment Risk
             . Issuer Risk            . Smaller Company Risk    . Credit Risk
             . Value Securities Risk  . Liquidity Risk          . Management Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. For periods prior to the inception of the
            Fund's Class D shares (4/8/98), performance information shown in
            the bar chart (including the information to its right) and the
            Average Annual Total Returns table show performance of the Fund's
            Institutional Class shares, which are offered in a different
            prospectus. The prior Institutional Class performance has been
            adjusted to reflect the actual distribution and/or service (12b-1)
            fees and other expenses paid by Class D shares. Past performance
            is no guarantee of future results.

15  PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Mid-Cap Fund (continued)

            Calendar Year Total Returns -- Class D


                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (10/1/99-
                                                           12/31/99)     22.91%
                                                           --------------------
                                                           Lowest (7/1/98-
                                                           9/30/98)     -14.46%

                                    [GRAPH]

                                 Annual Return

           92      93      94      95      96      97      98      99
         8.75%  15.32%  -2.76%  36.76%  22.87%  33.65%   7.80%  12.52%

                   Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
         <S>                                <C>      <C>       <C>
                                                               Fund Inception
                                            1 Year   5 Years   (8/26/91)(/3/)
            -----------------------------------------------------------------
         Class D                            12.52%   22.19%    17.16%
            -----------------------------------------------------------------
         Russell Mid-Cap Index(/1/)         18.23%   21.85%    17.31%
            -----------------------------------------------------------------
         Lipper Mid-Cap Fund Average(/2/)   39.38%   23.07%    16.94%
            -----------------------------------------------------------------
</TABLE>

            (1) The Russell Mid-Cap Index is an unmanaged index of middle
                capitalization U.S. stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Mid-Cap Fund Average is a total return performance
                average of funds tracked by Lipper Analytical Services, Inc.
                that invest primarily in companies with market capitalizations
                of less than $5 billion at the time of investment. It does not
                take into account sales charges.
            (3) The Fund began operations on 8/26/91. Index comparisons begin
                on 8/31/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.45%      0.25%               0.40%           1.10%
            --------------------------------------------------------------------

            (1) The Fund's administration agreement includes a plan for Class
                D shares that has been adopted in conformity with the
                requirements set forth in Rule 12b-1 under the Investment
                Company Act of 1940. Up to 0.25% per year of the total
                Administrative Fees paid under the administration agreement
                may be Distribution and/or Service (12b-1) Fees. The Fund will
                pay a total of 0.65% per year under the administration
                agreement regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees are deemed not to be "service
                fees," Class D shareholders may, depending on the length of
                time the shares are held, pay more than the economic
                equivalent of the maximum front-end sales charges permitted by
                relevant rules of the NASD.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $112       $350                $606            $1,340
            --------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 16
<PAGE>

            PIMCO Renaissance Fund

--------------------------------------------------------------------------------
<TABLE>
<S>           <C>                  <C>                    <C>
Principal     Investment           Fund Focus             Approximate Capitalization Range
Investments   Objective            Undervalued            All capitalizations
and           Seeks long-term      stocks with
Strategies    growth of            improving              Dividend Frequency
              capital and          business               Quarterly
              income               fundamentals

              Fund Category        Approximate Number of Holdings
              Value Stocks         50-80
</TABLE>

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with below-average valuations whose business fundamentals are
            expected to improve. Although the Fund typically invests in
            companies with market capitalizations of $1 billion to $10 billion
            at the time of investment, it may invest in companies in any
            capitalization range. To achieve income, the Fund invests a
            portion of its assets in income-producing (e.g., dividend-paying)
            stocks.

             The portfolio manager selects stocks for the Fund using a "value"
            style. The portfolio manager invests primarily in common stocks of
            companies having below-average valuations whose business
            fundamentals, such as market share, strength of management and
            competitive position, are expected to improve. The portfolio
            manager determines valuation based on characteristics such as
            price-to-earnings, price-to-book, and price-to-cash flow ratios.
            The portfolio manager analyzes stocks and seeks to identify the
            key drivers of financial results and catalysts for change, such as
            new management and new or improved products, that indicate a
            company may demonstrate improving fundamentals in the future. The
            portfolio manager looks to sell a stock when he believes that the
            company's business fundamentals are weakening or when the stock's
            valuation has become excessive.

             The Fund may also invest in other kinds of equity securities,
            including preferred stocks and convertible securities. The Fund
            may invest up to 15% of its assets in foreign securities, usually
            in the form of American Depository Receipts (ADRs).

             In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>

              <S>                      <C>                         <C>
              . Market Risk            . Foreign Investment Risk   . Credit Risk
              . Issuer Risk            . Currency Risk             . Management Risk
              . Value Securities Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. For periods prior to the inception of the
            Fund's Class D shares (4/8/98), performance information shown in
            the bar chart (including the information to its right) and the
            Average Annual Total Returns table show performance of the Fund's
            Class C shares, which are offered in a different prospectus. The
            prior Class C performance has been adjusted to reflect that there
            are no sales charges (loads) and lower distribution and/or service
            (12b-1) fees paid by Class D shares. Prior to March 6, 1999, the
            Fund had a different sub-adviser and would not necessarily have
            achieved the performance results shown on the next page under its
            current investment management arrangements. Past performance is no
            guarantee of future results.

             The Average Annual Total Returns table also shows estimated
            historical performance for Class D shares. Prior to the inception
            of Class D shares (4/8/98), the performance is based on the
            performance of the Fund's Class C shares, adjusted to reflect that
            there are no sales charges and lower distribution and/or service
            (12b-1) fees paid by Class D shares. Prior to May 7, 1999, the
            Fund had a different sub-adviser and would not necessarily have
            achieved the performance results shown on the next page under its
            current investment management arrangements. Past performance is no
            guarantee of future results.

17  PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Renaissance Fund (continued)

            Calendar Year Total Returns -- Class D


                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (10/1/98-
                                                           12/31/98)     18.65%
                                                           --------------------
                                                           Lowest (7/1/98-
                                                           9/30/98)     -16.60%

                                    [GRAPH]

                                 Annual Return

    90      91      92      93      94      95      96      97      98      99
-14.82%  34.22%   8.58%  22.13%  -4.34%  28.55%  25.32%  35.89%  11.66%   9.90%

                  Calendar Year End (through 12/31/99)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
         <S>                            <C>    <C>     <C>      <C>
                                                                Fund Inception
                                        1 Year 5 Years 10 Years (4/18/88)(/3/)
            ------------------------------------------------------------------
         Class D                        9.90%  21.86%  14.57%   14.01%
            ------------------------------------------------------------------
         Russell 1000 Value Index(/1/)  7.34%  23.08%  15.60%   16.38%
            ------------------------------------------------------------------
         Lipper Equity Income Fund
          Average(/2/)                  4.77%  18.02%  12.85%   13.54%
            ------------------------------------------------------------------
</TABLE>

            (1) The Russell 1000 Value Index is an unmanaged index that
                measures the performance of companies in the Russell 1000
                Index with lower price-to-book ratios and lower forecasted
                growth values. It is not possible to invest directly in the
                index. The Russell 1000 Value Index replaced the S&P 500 Index
                (an unmanaged index of large capitalization common stocks) as
                one of the Fund's comparative indexes because PIMCO Advisors
                believes the Russell 1000 Value Index is more representative
                of the Fund's investment strategies. For periods ended
                December 31, 1999, the 1 Year, 5 Years, 10 Years and Fund
                Inception average annual total returns of the S&P 500 Index
                were 21.04%, 28.56%, 18.21% and 19.06%, respectively. It is
                not possible to invest directly in the index.
            (2) The Lipper Equity Income Fund Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that seek relatively higher growth of income
                through investing 60% or more of their portfolios in equities.
                It does not take into account sales charges.
            (3) The Fund began operations on 4/18/88. Index comparisons begin
                on 4/30/88.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.60%      0.25%               0.40%           1.25%
            --------------------------------------------------------------------

            (1) The Fund's administration agreement includes a plan for Class
                D shares that has been adopted in conformity with the
                requirements set forth in Rule 12b-1 under the Investment
                Company Act of 1940. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.65% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds-- Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees are deemed not to be "service
                fees," Class D shareholders may, depending on the length of
                time the shares are held, pay more than the economic
                equivalent of the maximum front-end sales charges permitted by
                relevant rules of the NASD.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $127       $397                $686            $1,511
            --------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 18
<PAGE>

PIMCO Select Growth Fund
--------------------------------------------------------------------------------
<TABLE>

<S>           <C>                     <C>                    <C>
Principal     Investment Objective    Fund Focus             Approximate
Investments                           Larger capitalization  Capitalization Range
and           Seeks long-term         common stocks          At least $10 billion
Strategies    growth of
              capital; income         Approximate Number     Dividend Frequency
              is an incidental        of Holdings            At least annually
              consideration           15-25

              Fund Category
              Growth Stocks
</TABLE>
            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of "growth"
            companies with market capitalizations of at least $10 billion at
            the time of investment. The Fund normally invests in the
            securities of 15 to 25 issuers.

            The portfolio manager selects stocks for the Fund using a "growth"
            style. The portfolio manager seeks to identify companies with
            well-defined "wealth creating" characteristics, including superior
            earnings growth (relative to companies in the same industry or the
            market as a whole), high profitability and consistent, predictable
            earnings. In addition, through fundamental research, the portfolio
            manager seeks to identify companies that are gaining market share,
            have superior management and possess a sustainable competitive
            advantage, such as superior or innovative products, personnel and
            distribution systems. The Fund looks to sell a stock when the
            portfolio manager believes that its earnings, market sentiment or
            relative performance are disappointing or if an alternative
            investment is more attractive. The Fund is "non-diversified,"
            which means that it invests in a relatively small number of
            issuers.

            The Fund may invest up to 25% of its assets in foreign securities,
            usually in the form of American Depository Receipts (ADRs). In
            response to unfavorable market and other conditions, the Fund may
            make temporary investments of some or all of its assets in high-
            quality fixed income securities. This would be inconsistent with
            the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal Risks
            Among the principal risks of investing in the Fund, which could
            adversely affect its net asset value, yield and total return, are:

             .Market Risk           .Growth Securities    .Credit Risk
             .Issuer Risk            Risk                 .Management Risk
             .Focused Investment    .Foreign Investment
              Risk                   Risk
                                    .Currency Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart, the information to its
            right and the Average Annual Total Returns table show performance
            of the Fund's Institutional Class shares, which are offered in a
            different prospectus. This is because the Fund did not offer Class
            D shares during the periods shown. Although Class D and
            Institutional Class shares would have similar annual returns
            (because all the Fund's shares represent interests in the same
            portfolio of securities), Class D performance would be lower than
            Institutional Class performance because of the higher expenses
            paid by Class D shares.

            The Average Annual Total Returns table also shows estimated
            historical performance for Class D shares. The estimated Class D
            performance is based on the performance of the Fund's
            Institutional Class shares, adjusted to reflect the actual
            distribution and/or service (12b-1) fees and other expenses paid
            by Class D shares.

            The performance information on the next page reflects the Fund's
            advisory fee level in effect prior to April 1, 2000 (0.57% per
            annum); these results would have been lower had the Fund's current
            advisory fee level (0.60% per annum) then been in effect. Prior to
            July 1, 1999, the Fund had a different sub-adviser and would not
            necessarily have achieved the performance results shown on the
            next page under its current investment management arrangements. In
            addition, the Fund changed its investment objective and policies
            on April 1, 2000; the performance results shown on the next page
            would not necessarily have been achieved had the Fund's current
            objective and policies then been in effect. Past performance is no
            guarantee of future results.

19  PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Select Growth Fund (continued)

            Calendar Year Total Returns -- Institutional Class


                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (10/1/98-
                                                            12/31/98)     24.90%
                                                            --------------------
                                                            Lowest (7/1/98-
                                                            9/30/98)     -11.38%

                                    [GRAPH]

                                 Annual Return

                   95        96        97        98        99
                27.96%    17.95%    25.32%    41.06%    24.27%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
         <S>                               <C>      <C>       <C>
                                                              Fund Inception
                                           1 Year   5 Years   (12/28/94)(/3/)
            -----------------------------------------------------------------
         Institutional Class               24.27%   27.09%    27.06%
            -----------------------------------------------------------------
         Class D                           23.78%   26.59%    26.57%
            -----------------------------------------------------------------
         S&P 500 Index(/1/)                21.04%   28.56%    28.56%
            -----------------------------------------------------------------
         Lipper Growth Fund Average(/2/)   29.23%   25.03%    25.03%
            -----------------------------------------------------------------
</TABLE>
            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Growth Fund Average is a total return performance
                average of funds tracked by Lipper Analytical Services, Inc.
                that invest in companies with long-term earnings expected to
                grow significantly faster than the earnings of the stocks
                represented in the major unmanaged stock indexes. It does not
                take into account sales charges.
            (3) The Fund began operations on 12/28/94. Index comparisons begin
                on 12/31/94.

--------------------------------------------------------------------------------
Fees and
Expenses    These tables describe the fees and expenses you may pay if you buy
of the      and hold Class D shares of the Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
         <S>       <C>        <C>                 <C>             <C>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         Class D   0.60       0.25%               0.40%           1.25%
            --------------------------------------------------------------------
            (1) The Fund's administration agreement includes a plan for Class
                D shares that has been adopted in conformity with the
                requirements set forth in Rule 12b-1 under the Investment
                Company Act of 1940. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.65% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees are deemed not to be "service
                fees," Class D shareholders may, depending on the length of
                time the shares are held, pay more than the economic
                equivalent of the maximum front-end sales charges permitted by
                relevant rules of the NASD.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $127       $397                $686            $1,511
            --------------------------------------------------------------------
</TABLE>
                                                                   Prospectus
                                                                              20
<PAGE>

            PIMCO Target Fund

--------------------------------------------------------------------------------
<TABLE>

<S>           <C>                 <C>                   <C>
Principal     Investment          Fund Focus            Approximate Capitalization Range
Investments   Objective           Medium capitalization Between $1 billion
and           Seeks capital       common stocks         and $10 billion
Strategies    appreciation; no
              consideration is    Approximate Number    Dividend Frequency
              given to income     of Holdings           At least annually
                                  40-60
              Fund Category
              Growth Stocks
</TABLE>
            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of "growth"
            companies with market capitalizations of between $1 billion and
            $10 billion at the time of investment.

             The portfolio managers select stocks for the Fund using a
            "growth" style. The portfolio managers seek to identify companies
            with well-defined "wealth creating" characteristics, including
            superior earnings growth (relative to companies in the same
            industry or the market as a whole), high profitability and
            consistent, predictable earnings. In addition, through fundamental
            research, the portfolio managers seek to identify companies that
            are gaining market share, have superior management and possess a
            sustainable competitive advantage, such as superior or innovative
            products, personnel and distribution systems. The Fund looks to
            sell a stock when the portfolio managers believe that its
            earnings, market sentiment or relative performance are
            disappointing or if an alternative investment is more attractive.

             The Fund may also invest in other kinds of equity securities,
            including preferred stocks and convertible securities. The Fund
            may invest up to 15% of its assets in foreign securities, usually
            in the form of American Depository Receipts (ADRs).

             In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              .Market Risk        .Smaller Company Risk    .Currency Risk
              .Issuer Risk        .Liquidity Risk          .Credit Risk
              .Growth Securities  .Foreign Investment      .Management Risk
               Risk                Risk
              .Focused Investment
               Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart, the information to its
            right and the Average Annual Total Returns table show performance
            of the Fund's Class A shares, which are offered in a different
            prospectus. This is because the Fund did not offer Class D shares
            during the periods listed. Although Class D and Class A shares
            would have similar annual returns (because all of the Fund's
            shares represent interests in the same portfolio of securities),
            Class D performance would be higher than Class A performance
            because Class D shares do not pay any sales charges (loads). The
            Class A performance in the bar chart and the information to its
            right do not reflect the impact of sales charges. If they did, the
            returns would be lower than those shown. Unlike the bar chart,
            performance for Class A shares in the Average Annual Total Returns
            table reflects the impact of sales charges.

            The Average Annual Total Returns table also shows estimated
            historical performance for Class D shares based on the performance
            of the Fund's Class A shares, adjusted to reflect that there are
            no sales charges paid by Class D shares. Prior to March 6, 1999,
            the Fund had a different sub-adviser and would not necessarily
            have achieved the performance results shown on the next page under
            its current investment management arrangements. Past performance
            is no guarantee of future results.

21 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Target Fund (continued)

            Calendar Year Total Returns -- Class A


                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (10/1/99-
                                                           12/31/99)     53.05%
                                                           --------------------
                                                           Lowest (7/1/98-
                                                           9/30/98)     -13.15%

                                    [GRAPH]

                                 Annual Return

                   93      94      95      96      97      98      99
                24.52%   3.09%  30.31%  15.68%  15.44%  23.27%  66.25%

                  Calendar Year End (through 12/31/99)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
         <S>                                <C>      <C>       <C>
                                                               Fund Inception
                                            1 Year   5 Years   (12/17/92)(/3/)
            ------------------------------------------------------------------
         Class A                            57.10%   28.28%    24.13%
            ------------------------------------------------------------------
         Class D                            66.25%   29.74%    25.13%
            ------------------------------------------------------------------
         S&P Mid-Cap 400 Index(/1/)         14.73%   23.05%    17.55%
            ------------------------------------------------------------------
         Lipper Mid-Cap Fund Average(/2/)   39.38%   23.07%    17.44%
            ------------------------------------------------------------------
</TABLE>

            (1) The S&P Mid-Cap 400 Index is an unmanaged index of middle
                capitalization U.S. stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Mid-Cap Fund Average is a total return performance
                average of funds tracked by Lipper Analytical Services, Inc.
                that invest primarily in companies with market capitalizations
                of less than $5 billion at the time of investment. It does not
                take into account sales charges.
            (3) The Fund began operations on 12/17/92. Index comparisons begin
                on 12/31/92.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.55%      0.25%               0.40%           1.20%
            --------------------------------------------------------------------

            (1) The Fund's administration agreement includes a plan for Class
                D shares that has been adopted in conformity with the
                requirements set forth in Rule 12b-1 under the Investment
                Company Act of 1940. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.65% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds-- Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees are deemed not to be "service
                fees," Class D shareholders may, depending on the length of
                time the shares are held, pay more than the economic
                equivalent of the maximum front-end sales charges permitted by
                relevant rules of the NASD.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $122       $381                $660            $1,455
            --------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 22
<PAGE>

            PIMCO Tax-Efficient Equity Fund

--------------------------------------------------------------------------------
<TABLE>
<S>  <C>
Principal     Investment           Fund Focus             Approximate Capitalization Range
Investments   Objective            A portion of the       More than $5 billion
and           Seeks maximum        common stocks
Strategies    after-tax            represented in the S&P Dividend Frequency
              growth of            500 Index              At least annually
              capital
                                   Approximate Number
              Fund                 of Holdings
              Category             More than
              Enhanced Index       200
</TABLE>

            The Fund attempts to provide a total return which exceeds the
            return of the S&P 500 Index by investing in a broadly diversified
            portfolio of at least 200 common stocks. The Fund also attempts to
            achieve superior after-tax returns for its shareholders by using a
            variety of tax-efficient management strategies.

             The Fund seeks to achieve its investment objective by normally
            investing at least 95% of its assets in stocks represented in the
            S&P 500 Index. The Fund's portfolio is designed to have certain
            characteristics that are similar to those of the index, including
            such measures as dividend yield, P/E ratio, relative volatility,
            economic sector exposure, return on equity and market price-to-
            book value ratio. The Fund's return is intended to correlate
            highly with the return of the S&P 500 Index, but the portfolio
            managers attempt to produce a higher total return than the index
            by selecting a portion of the stocks represented in the index
            using the quantitative techniques described below. The portfolio
            managers also use these techniques to make sell decisions.
            Notwithstanding these strategies, there is no assurance that the
            Fund's investment performance will equal or exceed that of the S&P
            500 Index.

             The Fund intends to be fully invested in common stock (aside from
            certain cash management practices) and will not make defensive
            investments in response to unfavorable market and other
            conditions.

             Quantitative Techniques. The portfolio managers use a proprietary
            quantitative model that ranks companies based on long-term (5-10
            years) price appreciation potential. They analyze factors such as
            growth of sustainable earnings and dividend behavior. Stocks in
            the top 50% of the model's ranking are considered for purchase by
            the Fund. The Fund looks to sell stocks selected from the bottom
            20% of the model's ranking based on cost, current market value and
            anticipated benefit of replacement. The portfolio managers' sell
            discipline also focuses on reducing realized capital gains as
            indicated below.

             Tax-Efficient Strategies. The portfolio managers utilize a range
            of active tax management strategies designed to minimize the
            Fund's taxable distributions, including low portfolio turnover and
            favoring investments in low-dividend, growth-oriented companies.
            The portfolio managers also identify specific shares of stock to
            be sold that have the lowest tax cost. When prudent, stocks are
            also sold to realize capital losses in order to offset realized
            capital gains. In limited circumstances, the Fund may also
            distribute appreciated securities to shareholders to meet
            redemption requests so as to avoid realizing capital gains.
            Despite the use of these tax-efficient strategies, the Fund may
            realize gains and shareholders will incur tax liability from time
            to time.

--------------------------------------------------------------------------------
Principal Risks
            Among the principal risks of investing in the Fund, which could
            adversely affect its net asset value, yield and total return, are:

             . Market Risk           . Growth Securities Risk    . Credit Risk
             . Issuer Risk           . Leveraging Risk           . Management
             . Value Securities Risk . Focused Investment Risk     Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. Past performance is no guarantee of future
            results.

23 PIMCO Funds: Multi-Manager Series
<PAGE>


            PIMCO Tax-Efficient Equity Fund (continued)

            Calendar Year Total Returns -- Class D


                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (10/1/99-
                                                           12/31/99)     14.90%
                                                           --------------------
                                                           Lowest (07/01/99-
                                                           09/30/99)     -7.33%

                                    [GRAPH]

                                 Annual Return

                                       99
                                    17.19%

                   Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
         <S>                                     <C>                  <C>
                                                                      Fund Inception
                                                 1 Year               (7/10/98)(/3/)
            ------------------------------------------------------------------------
         Class D                                 17.19%               15.30%
            ------------------------------------------------------------------------
         S&P 500 Index(/1/)                      21.04%               20.42%
            ------------------------------------------------------------------------
         Lipper Growth Fund Average(/2/)         29.23%               23.65%
            ------------------------------------------------------------------------
</TABLE>

            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Growth Fund Average is a total return performance
                average of funds tracked by Lipper Analytical Services, Inc.
                that invest primarily in companies with long-term earnings
                expected to grow significantly faster than the earnings of the
                stocks represented in the major unmanaged stock indexes. It
                does not take into account sales charges.
            (3) The Fund began operations on 7/10/98. Index comparisons begin
                on 6/30/98.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment) None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.45%      0.25%               0.40%           1.10%
            --------------------------------------------------------------------

            (1) The Fund's administration agreement includes a plan for Class
                D shares that has been adopted in conformity with the
                requirements set forth in Rule 12b-1 under the Investment
                Company Act of 1940. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.65% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees are deemed not to be "service
                fees," Class D shareholders may, depending on the length of
                time the shares are held, pay more than the economic
                equivalent of the maximum front-end sales charges permitted by
                relevant rules of the NASD.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $112       $350                $606            $1,340
            --------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 24
<PAGE>

            PIMCO Value Fund

--------------------------------------------------------------------------------
<TABLE>
<S>  <C>
Principal     Investment           Fund Focus             Approximate Capitalization Range
Investments   Objective            Undervalued larger     More than $10 billion
and           Seeks long-term      capitalization
Strategies    growth of            stocks with improving  Dividend Frequency
              capital and          business               Quarterly
              income               fundamentals

              Fund Category        Approximate Number
              Value Stocks         of Holdings
                                   40

</TABLE>

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with market capitalizations of more than $10 billion at the time
            of investment and below-average valuations whose business
            fundamentals are expected to improve. To achieve income, the Fund
            invests a portion of its assets in income-producing (e.g.,
            dividend-paying) common stocks.

             The portfolio manager selects stocks for the Fund using a "value"
            style. The portfolio manager invests primarily in stocks of
            companies having below-average valuations whose business
            fundamentals are expected to improve. The portfolio manager
            determines valuation based on characteristics such as price-to-
            earnings, price-to-book, and price-to-cash flow ratios. The
            portfolio manager analyzes stocks and seeks to identify the key
            drivers of financial results and catalysts for change, such as new
            management and new or improved products, that indicate a company
            may demonstrate improving fundamentals in the future. The
            portfolio manager looks to sell a stock when he believes that the
            company's business fundamentals are weakening or when the stock's
            valuation has become excessive.

             The Fund may also invest in other kinds of equity securities,
            including preferred stocks and convertible securities. The Fund
            may invest up to 15% of its assets in foreign securities, usually
            in the form of American Depository Receipts (ADR's). In response
            to unfavorable market and other conditions, the Fund may make
            temporary investments of some or all of its assets in high-quality
            fixed income securities. This would be inconsistent with the
            Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal Risks
            Among the principal risks of investing in the Fund, which could
            adversely affect its net asset value, yield and total return, are:

              . Market Risk          . Foreign Investment   . Credit Risk
              . Issuer Risk            Risk                 . Management Risk
              . Value Securities     . Currency Risk
                Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. For periods prior to the inception of the
            Fund's Class D shares (4/8/98), performance information shown in
            the bar chart (including the information to its right) and the
            Average Annual Total Returns table show performance of the Fund's
            Institutional Class shares, which are offered in a different
            prospectus. The prior Institutional Class performance has been
            adjusted to reflect the actual distribution and/or service (12b-1)
            fees and other expenses paid by Class D shares. Prior to May 8,
            2000, the Fund had a different sub-adviser and would not
            necessarily have achieved the performance results shown on the
            next page under its current investment management arrangements.
            Past performance is no guarantee of future results.

25 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Value Fund (continued)

            Calendar Year Total Returns --  Class D


                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (4/1/99-
                                                           6/30/99)      17.76%
                                                           --------------------
                                                           Lowest (7/1/98-
                                                           9/30/98)     -13.27%

                                    [GRAPH]

                                 Annual Return

           92      93      94      95      96      97      98      99
        12.70%  15.95%  -4.45%  38.37%  19.87%  25.71%   9.86%   3.88%

                   Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
         <S>                                         <C>    <C>     <C>
                                                                    Fund Inception
                                                     1 Year 5 Years (12/30/91)(/3/)
            -----------------------------------------------------------------------
         Class D                                      3.88% 18.93%  14.67%
            -----------------------------------------------------------------------
         S&P 500 Index(/1/)                          21.04% 28.56%  19.70%
            -----------------------------------------------------------------------
         Lipper Growth and Income Fund Average(/2/)  13.71% 21.37%  15.51%
            -----------------------------------------------------------------------
</TABLE>

            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Growth and Income Fund Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that combine a growth-of-earnings orientation
                and an income requirement for level and/or rising dividends.
                It does not take into account sales charges.
            (3) The Fund began operations on 12/30/91. Fund comparisons begin
                on 12/31/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment) None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.45%      0.25%               0.40%           1.10%
            --------------------------------------------------------------------

            (1) The Fund's administration agreement includes a plan for Class
                D shares that has been adopted in conformity with the
                requirements set forth in Rule 12b-1 under the Investment
                Company Act of 1940. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.65% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees are deemed not to be "service
                fees," Class D shareholders may, depending on the length of
                time the shares are held, pay more than the economic
                equivalent of the maximum front-end sales charges permitted by
                relevant rules of the NASD.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $112       $350                $606            $1,340
            --------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 26
<PAGE>

            Summary of Principal Risks

            The value of your investment in a Fund changes with the values of
            that Fund's investments. Many factors can affect those values. The
            factors that are most likely to have a material effect on a
            particular Fund's portfolio as a whole are called "principal
            risks." The principal risks of each Fund are identified in the
            Fund Summaries and are summarized in this section. Each Fund may
            be subject to additional principal risks and risks other than
            those described below because the types of investments made by
            each Fund can change over time. Securities and investment
            techniques mentioned in this summary and described in greater
            detail under "Characteristics and Risks of Securities and
            Investment Techniques" appear in bold type. That section and
            "Investment Objectives and Policies" in the Statement of
            Additional Information also include more information about the
            Funds, their investments and the related risks. There is no
            guarantee that a Fund will be able to achieve its investment
            objective.

Market      The market price of securities owned by a Fund may go up or down,
Risk        sometimes rapidly or unpredictably. Each of the Funds normally
            invests most of its assets in common stocks and/or other equity
            securities. A principal risk of investing in each Fund is that the
            equity securities in its portfolio will decline in value due to
            factors affecting equity securities markets generally or
            particular industries represented in those markets. The values of
            equity securities may decline due to general market conditions
            which are not specifically related to a particular company, such
            as real or perceived adverse economic conditions, changes in the
            general outlook for corporate earnings, changes in interest or
            currency rates or adverse investor sentiment generally. They may
            also decline due to factors which affect a particular industry or
            industries, such as labor shortages or increased production costs
            and competitive conditions within an industry. Equity securities
            generally have greater price volatility than fixed income
            securities.

Issuer      The value of a security may decline for a number of reasons which
Risk        directly relate to the issuer, such as management performance,
            financial leverage and reduced demand for the issuer's goods or
            services.

Value       Each Fund may invest in companies that may not be expected to
Securities  experience significant earnings growth, but whose securities its
Risk        portfolio manager believes are selling at a price lower than their
            true value. The Capital Appreciation, Equity Income, Mid-Cap,
            Renaissance and Value Funds place particular emphasis on value
            securities. Companies that issue value securities may have
            experienced adverse business developments or may be subject to
            special risks that have caused their securities to be out of
            favor. If a portfolio manager's assessment of a company's
            prospects is wrong, or if the market does not recognize the value
            of the company, the price of its securities may decline or may not
            approach the value that the portfolio manager anticipates.

Growth      Each Fund may invest in equity securities of companies that its
Securities  portfolio manager believes will experience relatively rapid
Risk        earnings growth. The Capital Appreciation, Global Innovation,
            Growth, Mid-Cap, Innovation, Select Growth and Target Funds place
            particular emphasis on growth securities. Growth securities
            typically trade at higher multiples of current earnings than other
            securities. Therefore, the values of growth securities may be more
            sensitive to changes in current or expected earnings than the
            values of other securities.

Smaller     The general risks associated with equity securities and liquidity
Company     risk are particularly pronounced for securities of companies with
Risk        smaller market capitalizations. These companies may have limited
            product lines, markets or financial resources or they may depend
            on a few key employees. Securities of smaller companies may trade
            less frequently and in lesser volume than more widely held
            securities and their values may fluctuate more sharply than other
            securities. They may also trade in the over-the-counter market or
            on a regional exchange, or may otherwise have limited liquidity.
            The Global Innovation and Innovation Funds generally have
            substantial exposure to this risk. The Mid-Cap and Target Funds
            have significant exposure to this risk because they invest
            primarily in companies with medium-sized market capitalizations,
            which are smaller and generally less-seasoned than the largest
            companies.

Liquidity   All of the Funds are subject to liquidity risk. Liquidity risk
Risk        exists when particular investments are difficult to purchase or
            sell, possibly preventing a Fund from selling such illiquid
            securities at an advantageous time or price. Funds with principal
            investment strategies that involve securities of companies with
            smaller market capitalizations, foreign securities, derivatives or
            securities with substantial market and/or credit risk tend to have
            the greatest exposure to liquidity risk.

Derivatives The Global Innovation, Growth, Innovation, Renaissance, Select
Risk        Growth and Tax-Efficient Equity Funds may use derivatives, which
            are financial contracts whose value depends on, or is derived
            from, the value of an underlying asset, reference rate or index.
            The various derivative instruments that the Funds may use are
            referenced under "Characteristics and Risks of Securities and
            Investment Techniques--Derivatives" in this Prospectus and
            described in more detail under "Investment

27 PIMCO Funds: Multi-Manager Series
<PAGE>

            Objectives and Policies" in the Statement of Additional
            Information. The Funds may sometimes use derivatives as part of a
            strategy designed to reduce exposure to other risks, such as
            interest rate or currency risk. The Funds may also use derivatives
            for leverage, which increases opportunities for gain but also
            involves greater risk of loss due to leveraging risk. A Fund's use
            of derivative instruments involves risks different from, or
            possibly greater than, the risks associated with investing
            directly in securities and other traditional investments.
            Derivatives are subject to a number of risks described elsewhere
            in this section, such as liquidity risk, market risk, credit risk
            and management risk. They also involve the risk of mispricing or
            improper valuation and the risk that changes in the value of the
            derivative may not correlate perfectly with the underlying asset,
            rate or index. In addition, a Fund's use of derivatives may
            increase or accelerate the amount of taxes payable by
            shareholders. A Fund investing in a derivative instrument could
            lose more than the principal amount invested. Also, suitable
            derivative transactions may not be available in all circumstances
            and there can be no assurance that a Fund will engage in these
            transactions to reduce exposure to other risks when that would be
            beneficial.

Foreign     A Fund that invests in foreign securities, and particularly the
(non-       Global Innovation Fund, may experience more rapid and extreme
U.S.)       changes in value than Funds that invest exclusively in securities
Investment  of U.S. issuers or securities that trade exclusively in U.S.
Risk        markets. The securities markets of many foreign countries are
            relatively small, with a limited number of companies representing
            a small number of industries. Additionally, issuers of foreign
            securities are usually not subject to the same degree of
            regulation as U.S. issuers. Reporting, accounting and auditing
            standards of foreign countries differ, in some cases
            significantly, from U.S. standards. Also, nationalization,
            expropriation or confiscatory taxation, currency blockage,
            political changes or diplomatic developments could adversely
            affect a Fund's investments in a foreign country. In the event of
            nationalization, expropriation or other confiscation, a Fund could
            lose its entire investment in foreign securities. To the extent
            that a Fund, such as the Global Innovation Fund, invests a
            significant portion of its assets in a narrowly defined area such
            as Europe, Asia or South America, the Fund will generally have
            more exposure to regional economic risks associated with foreign
            investments. Adverse developments in certain regions (such as
            Southeast Asia) can also adversely affect securities of other
            countries whose economies appear to be unrelated. In addition,
            special U.S. tax considerations may apply to a Fund's investment
            in foreign securities.

Emerging    Foreign investment risk may be particularly high to the extent
Markets     that a Fund invests in emerging market securities of issuers based
Risk        in countries with developing economies. These securities may
            present market, credit, currency, liquidity, legal, political and
            other risks different from, or greater than, the risks of
            investing in developed foreign countries. The Global Innovation
            Fund may invest a significant portion of its assets in emerging
            markets securities.

Currency    Funds that invest directly in foreign currencies and in securities
Risk        that trade in, or receive revenues in, foreign currencies are
            subject to the risk that those currencies will decline in value
            relative to the U.S. Dollar, or, in the case of hedging positions,
            that the U.S. Dollar will decline in value relative to the
            currency being hedged. The Global Innovation Fund is particularly
            sensitive to Currency Risk. Currency rates in foreign countries
            may fluctuate significantly over short periods of time for a
            number of reasons, including changes in interest rates,
            intervention (or the failure to intervene) by U.S. or foreign
            governments, central banks or supranational entities such as the
            International Monetary Fund, or by the imposition of currency
            controls or other political developments in the U.S. or abroad.

Focused     Focusing Fund investments in a small number of issuers, industries
Investment  or foreign currencies increases risk. Funds, such as the Select
Risk        Growth Fund, that are "non-diversified" because they invest in a
            relatively small number of issuers may have more risk because
            changes in the value of a single security or the impact of a
            single economic, political or regulatory occurrence may have a
            greater adverse impact on the Fund's net asset value. Some of
            those issuers also may present substantial credit or other risks.
            The Global Innovation Fund may be subject to increased risk to the
            extent that it focuses its investments in securities denominated
            in a particular foreign currency or in a narrowly defined
            geographic area outside the U.S. Similarly, the Global Innovation
            and Innovation Funds are vulnerable to events affecting companies
            which use innovative technologies to gain a strategic, competitive
            advantage in their industry and companies that provide and service
            those technologies because these Funds normally "concentrate"
            their investments in those companies. Also, the Funds may from
            time to time have greater risk because they invest a substantial
            portion of their assets in related industries such as "technology"
            or "financial and business services."

Leveraging  The Funds, and in particular the Global Innovation and Tax-
Risk        Efficient Equity Funds, may engage in transactions or purchase
            instruments that give rise to forms of leverage. Such transactions
            and instruments may include, among others, the use of reverse
            repurchase agreements and other borrowings, the investment of
            collateral from loans of portfolio securities, or the use of when-
            issued, delayed-delivery or forward commitment transactions. The
            use of derivatives may also involve leverage.

                                                                   Prospectus 28
<PAGE>

            Leverage, including borrowing, will cause the value of a Fund's
            shares to be more volatile than if the Fund did not use leverage.
            This is because leverage tends to exaggerate the effect of any
            increase or decrease in the value of a Fund's portfolio
            securities. The use of leverage may also cause a Fund to liquidate
            portfolio positions when it would not be advantageous to do so in
            order to satisfy its obligations or to meet segregation
            requirements.

Interest    To the extent that Funds purchase fixed income securities for
Rate Risk   investment or defensive purposes, they will be subject to interest
            rate risk, a market risk relating to investments in fixed income
            securities such as bonds and notes. As interest rates rise, the
            value of fixed income securities in a Fund's portfolio are likely
            to decrease.

Credit      All of the Funds are subject to credit risk. This is the risk that
Risk        the issuer or the guarantor of a fixed income security, or the
            counterparty to a derivatives contract, repurchase agreement or a
            loan of portfolio securities, is unable or unwilling to make
            timely principal and/or interest payments, or to otherwise honor
            its obligations. Securities are subject to varying degrees of
            credit risk, which are often reflected in their credit ratings.

Management  Each Fund is subject to management risk because it is an actively
Risk        managed investment portfolio. PIMCO Advisors, the Sub-Advisers and
            each individual portfolio manager will apply investment techniques
            and risk analyses in making investment decisions for the Funds,
            but there can be no guarantee that these will produce the desired
            results.

            Management of the Funds

Investment  PIMCO Advisors serves as the investment adviser and the
Adviser     administrator (serving in its capacity as administrator, the
and Ad-     "Administrator") for the Funds. Subject to the supervision of the
ministrator Board of Trustees, PIMCO Advisors is responsible for managing,
            either directly or through others selected by it, the investment
            activities of the Funds and the Funds' business affairs and other
            administrative matters.

             PIMCO Advisors is located at 800 Newport Center Drive, Newport
            Beach, California 92660. Organized in 1987, PIMCO Advisors
            provides investment management and advisory services to private
            accounts of institutional and individual clients and to mutual
            funds. As of March 31, 2000, PIMCO Advisors and its subsidiary
            partnerships had more than $264 billion in assets under
            management.

             PIMCO Advisors has retained investment management firms ("Sub-
            Advisers") to manage the investments of the Capital Appreciation,
            Mid-Cap and Tax-Efficient Equity Funds. The PIMCO Equity Advisors
            division of PIMCO Advisors manages the investments of the Equity
            Income, Global Innovation, Growth, Innovation, Renaissance, Select
            Growth, Target and Value Funds (PIMCO Equity Advisors is also
            referred to as a "Sub-Adviser" in this capacity). See "Sub-
            Advisers" below.

             PIMCO Advisors has retained its affiliate, Pacific Investment
            Management Company, to provide various administrative and other
            services required by the Funds in its capacity as sub-
            administrator. PIMCO Advisors and the sub-administrator may retain
            other affiliates to provide certain of these services.

Advisory    Each Fund pays PIMCO Advisors fees in return for providing or
Fees        arranging for the provision of investment advisory services. In
            the case of Funds for which PIMCO Advisors has retained a separate
            Sub-Adviser, PIMCO Advisors (and not the Fund) pays a portion of
            the advisory fees it receives to the Sub-Adviser in return for its
            services.

             For the fiscal year ended June 30, 1999, the Funds paid monthly
            advisory fees to PIMCO Advisors at the following annual rates
            (stated as a percentage of the average daily net assets of each
            Fund taken separately):


<TABLE>
<CAPTION>
         Fund                                                    Advisory Fees
         ---------------------------------------------------------------------
         <S>                                                     <C>
         Capital Appreciation, Equity Income, Mid-Cap and Value Funds   0.45%
         Growth Fund                                                    0.50%
         Target Fund                                                    0.55%
         Select Growth Fund                                             0.57%*
         Renaissance Fund                                               0.60%
         Innovation Fund                                                0.65%
</TABLE>
         * On April 1, 2000, the advisory fee rate for the Select Growth
           Fund increased to 0.60% per annum.

             The Global Innovation and Tax-Efficient Equity Funds were not
            operational during the entire fiscal year ended June 30, 1999. The
            annual investment advisory fee rate payable by these Funds are as
            follows (stated as a percentage of the average daily net assets
            each Fund taken separately): Global Innovation--1.00%; Tax
            Efficient Equity--0.45%.

29 PIMCO Funds: Multi-Manager Series
<PAGE>


Adminis-    Each Fund pays for the administrative services it requires under a
trative     fee structure which is essentially fixed. Class D shareholders of
Fees        each Fund pay an administrative fee to PIMCO Advisors, computed as
            a percentage of the Fund's assets attributable in the aggregate to
            Class D shares. PIMCO Advisors, in turn, provides or procures
            administrative services for Class D shareholders and also bears
            the costs of various third-party services required by the Funds,
            including audit, custodial, portfolio accounting, legal, transfer
            agency and printing costs. The result of this fee structure is an
            expense level for Class D shareholders of each Fund that, with
            limited exceptions, is precise and predictable under ordinary
            circumstances.

             PIMCO Advisors or an affiliate may pay financial service firms a
            portion of the Class D administrative fees in return for the
            firms' services (normally not to exceed an annual rate of 0.35% of
            a Fund's average daily net assets attributable to Class D shares
            purchased through such firms).

             For the fiscal year ended June 30, 1999, Class D shareholders of
            the Funds paid PIMCO Advisors monthly administrative fees at the
            following annual rates (stated as a percentage of the average
            daily net assets attributable in the aggregate to the Fund's Class
            D shares):


             Fund                                           Administrative Fees*
             -------------------------------------------------------------------
             Capital Appreciation, Equity Income, Innovation,
             Mid-Cap, Renaissance and Value Funds                    0.65%

             *As described below under "12b-1 Plan for Class D Shares," the
             administration agreement includes a plan adopted in conformity
             with Rule 12b-1 under the Investment Company Act of 1940 (the
             "1940 Act") which provides for the payment of up to 0.25% of the
             0.65% (0.85% for the Global Innovation Fund) Administrative Fee
             as reimbursement for expenses in respect of activities that may
             be deemed to be primarily intended to result in the sale of
             Class D shares. In the Fund Summaries above, the "Annual Fund
             Operating Expenses" table provided under "Fees and Expenses of
             the Fund" for each Fund shows the 0.65% (0.85% for the Global
             Innovation Fund) Administrative Fee rate under two separate
             columns entitled "Distribution and/or Service (12b-1) Fees"
             (0.25%) and "Other Expenses" (0.40%) (0.60% for the Global
             Innovation Fund).

             The Global Innovation, Growth, Select Growth, Target and Tax-
            Efficient Equity Funds did not offer Class D shares during the
            entire fiscal year ended June 30, 1999. Class D shareholders of
            each of these Funds pay administrative fees at the following
            annual rates (stated as a percentage of the average daily net
            assets attributable in the aggregate to the Fund's Class D
            shares): Global Innovation--0.85%; Growth, Select Growth, Target
            and Tax-Efficient Equity--0.65%.

12b-1       The Funds' administration agreement includes a plan for Class D
Plan for    shares that has been adopted in conformity with the requirements
Class D     set forth in Rule 12b-1 under the 1940 Act. The plan provides that
Shares      up to 0.25% per annum of the Class D administrative fees paid
            under the administration agreement may represent reimbursement for
            expenses in respect of activities that may be deemed to be
            primarily intended to result in the sale of Class D shares. The
            principal types of activities for which such payments may be made
            are services in connection with the distribution of Class D shares
            and/or the provision of shareholder services. Because 12b-1 fees
            would be paid out of a Fund's Class D share assets on an ongoing
            basis, over time these fees would increase the cost of your
            investment in Class D shares and may cost you more than other
            types of sales charges.

Sub-        Each Sub-Adviser has full investment discretion and makes all
Advisers    determinations with respect to the investment of a Fund's assets.
            The following provides summary information about each Sub-Adviser,
            including the Fund(s) it manages.


<TABLE>
<CAPTION>
            Sub-Adviser*                                  Funds
            -------------------------------------------------------------------------------------------------------
            <S>                                           <C>
            PIMCO Equity Advisors division of PIMCO       Equity Income, Global Innovation, Growth, Innovation,
            Advisors ("PIMCO Equity Advisors")            Renaissance, Select Growth, Target and Value
            1345 Avenue of the Americas, 50th Floor
            New York, NY 10105
            -------------------------------------------------------------------------------------------------------
            Cadence Capital Management ("Cadence")        Capital Appreciation and Mid-Cap
            Exchange Place, 53 State Street
            Boston, MA 02109
            -------------------------------------------------------------------------------------------------------------
            Parametric Portfolio Associates               Tax-Efficient Equity
            ("Parametric")
            7310 Columbia Center, 701 Fifth Avenue
            Seattle, WA 98104
</TABLE>
            *PIMCO Equity Advisors is a division of PIMCO Advisors. Each of
            the other Sub-Advisers is an affiliated sub-partnership of PIMCO
            Advisors.

             The following provides additional information about each Sub-
            Adviser and the individual portfolio managers who have or share
            primary responsibility for managing the Funds' investments.

PIMCO       A division of PIMCO Advisors, PIMCO Equity Advisors provides
Equity      equity-related advisory services to mutual funds and institutional
Advisors    accounts. See "Investment Adviser and Administrator" above for
            additional information about PIMCO Advisors.

                                                                   Prospectus 30
<PAGE>

             The following individuals at PIMCO Equity Advisors have primary
            responsibility for the noted Funds. Different sub-advisory firms
            served as Sub-Adviser for the Growth, Innovation and Target Funds
            prior to March 6, 1999, for the Renaissance Fund prior to May 7,
            1999, for the Select Growth Fund prior to July 1, 1999 and for the
            Equity Income and Value Funds prior to May 8, 2000.


<TABLE>
<CAPTION>
                                                                    Recent Professional
         Fund              Portfolio Managers          Since        Experience
            --------------------------------------------------------------------------------
         <C>               <C>                         <C>          <S>
         Equity Income     Kenneth W. Corba            2000         Managing Director and
                                                                    Chief Investment Officer
                                                                    of PIMCO Equity Advisors
                                                                    and a Member of the
                                                                    Management Board of
                                                                    PIMCO Advisors. Prior to
                                                                    joining PIMCO Advisors,
                                                                    he was with Eagle Asset
                                                                    Management from 1995 to
                                                                    1998, serving in various
                                                                    capacities including as
                                                                    Chief Investment Officer
                                                                    and Portfolio Manager.
                                                                    He was with Stein Roe
                                                                    and Farnham Inc. from
                                                                    1984 to 1995, serving in
                                                                    various capacities
                                                                    including as Director of
                                                                    the Capital Management
                                                                    Group, Senior Vice
                                                                    President and Portfolio
                                                                    Manager.

         Global Innovation Dennis P. McKechnie         1999         Portfolio Manager of
                                                       (Inception)+ PIMCO Equity Advisors.
                                                                    Prior to joining PIMCO
                                                                    Advisors, he was with
                                                                    Columbus Circle
                                                                    Investors from 1991 to
                                                                    1999, where he managed
                                                                    equity accounts and
                                                                    served in various
                                                                    capacities including as
                                                                    Portfolio Manager for
                                                                    the Innovation Fund.

         Growth            Mr. Corba                   1999         See above.

         Innovation        Mr. McKechnie               1998         See above.

         Renaissance       John K. Schneider           1999         Senior Portfolio Manager
                                                                    of PIMCO Equity
                                                                    Advisors. Prior to
                                                                    joining PIMCO Advisors,
                                                                    he was a partner and
                                                                    Portfolio Manager of
                                                                    Schneider Capital
                                                                    Management from 1996 to
                                                                    1999, where he managed
                                                                    equity accounts for
                                                                    various institutional
                                                                    clients. Prior to that
                                                                    he was a member of the
                                                                    Equity Policy Committee
                                                                    and Director of Research
                                                                    at Newbold's Asset
                                                                    Management from 1991 to
                                                                    1996.

         Select Growth     Messrs. Corba and Schneider 1999         See above.

         Target            Mr. Corba                   1999         See above.
                           Jeff Parker                 1999         Assistant Portfolio
                                                                    Manager and Research
                                                                    Analyst for PIMCO Equity
                                                                    Advisors. Prior to
                                                                    joining PIMCO Equity
                                                                    Advisors, he managed
                                                                    equity accounts as an
                                                                    Assistant Portfolio
                                                                    Manager at Eagle Asset
                                                                    Management from 1996 to
                                                                    1998. He was a Senior
                                                                    Consultant with Andersen
                                                                    Consulting, specializing
                                                                    in healthcare and
                                                                    technology, from 1991 to
                                                                    1994.
         Value             Mr. Schneider               2000         See above.

            -------
            + Prior to PIMCO Advisors and PIMCO Equity Advisors assuming their
              positions as Adviser and Sub-Adviser, respectively, of the
              Global Innovation Fund, Mr. McKechnie managed the Fund's
              portfolio in his capacity as an officer of the Trust.

Cadence      An affiliated sub-partnership of PIMCO Advisors, Cadence provides
            advisory services to mutual funds and institutional accounts.
            Cadence Capital Management Corporation, the predecessor investment
            adviser to Cadence, commenced operations in 1988. Accounts managed
            by Cadence had combined assets as of March 31, 2000 of
            approximately $6.8 billion.

             The following individuals at Cadence share primary responsibility
            for each of the noted Funds.


<CAPTION>
                                                                    Recent Professional
         Fund              Portfolio Managers          Since        Experience
            --------------------------------------------------------------------------------
         <C>               <C>                         <C>          <S>
         Capital           David B. Breed              1991         Managing Director, Chief
         Appreciation                                  (Inception)  Executive Officer, Chief
                                                                    Investment Officer and
                                                                    founding partner of
                                                                    Cadence. Member of the
                                                                    Management Board of
                                                                    PIMCO Advisors. He is a
                                                                    research generalist and
                                                                    has lead the team of
                                                                    portfolio managers and
                                                                    analysts since 1988. Mr.
                                                                    Breed has managed
                                                                    separate equity accounts
                                                                    for many institutional
                                                                    clients and has lead the
                                                                    team that manages the
                                                                    PIMCO Funds sub-advised
                                                                    by Cadence since those
                                                                    Funds' inception dates.

                           William B. Bannick          1992         Managing Director and
                                                                    Executive Vice President
                                                                    at Cadence. Mr. Bannick
                                                                    is a research generalist
                                                                    and Senior Portfolio
                                                                    Manager for the Cadence
                                                                    team. He has managed
                                                                    separately managed
                                                                    equity accounts for
                                                                    various Cadence
                                                                    institutional clients
                                                                    and has been a member of
                                                                    the team that manages
                                                                    the PIMCO Funds sub-
                                                                    advised by Cadence since
                                                                    joining Cadence in 1992.

                           Katherine A. Burdon         1993         Managing Director and
                                                                    Senior Portfolio Manager
                                                                    at Cadence. Ms. Burdon
                                                                    is a research generalist
                                                                    and has managed
                                                                    separately managed
                                                                    equity accounts for
                                                                    various Cadence
                                                                    institutional clients
                                                                    and has been a member of
                                                                    the team that manages
                                                                    the PIMCO Funds sub-
                                                                    advised by Cadence since
                                                                    joining Cadence in 1993.
</TABLE>



31 PIMCO Funds: Multi-Manager Series
<PAGE>


<TABLE>
<CAPTION>
                                                              Recent Professional
         Fund                 Portfolio Managers Since        Experience
            --------------------------------------------------------------------------
         <C>                  <C>                <C>          <S>
         Capital               Peter B. McManus  1994         Director, Account
         Appreciation (cont.)                                 Management at Cadence.
                                                              He has been a member of
                                                              the investment team at
                                                              Cadence and handles
                                                              client relationships of
                                                              separately managed
                                                              accounts, and has been a
                                                              member of the team that
                                                              manages the PIMCO Funds
                                                              sub-advised by Cadence
                                                              since joining Cadence in
                                                              1994. Previously, he
                                                              served as a Vice
                                                              President of Bank of
                                                              Boston from 1991
                                                              to 1994.

         Mid-Cap               Messrs. Breed,    Same as      See above.
                               Bannick and       Capital
                               McManus and       Appreciation
                               Ms. Burdon        Fund
</TABLE>

Parametric  An affiliated sub-partnership of PIMCO Advisors, Parametric
            provides advisory services to mutual funds and institutional
            accounts. Parametric Portfolio Associates, Inc., the predecessor
            investment adviser to Parametric, commenced operations in 1987.
            Accounts managed by Parametric had combined assets as of March 31,
            2000 of approximately $4.5 billion.

             The following individuals at Parametric share primary
            responsibility for the Tax-Efficient Equity Fund.


<TABLE>
<CAPTION>
                                                                  Recent Professional
         Fund                 Portfolio Managers Since            Experience
            ------------------------------------------------------------------------------
         <C>                  <C>                <C>              <S>
         Tax-Efficient Equity David Stein        1998 (Inception) Managing Director of
                                                                  Parametric. He also
                                                                  serves as a Senior
                                                                  Porfolio Manager of
                                                                  PIMCO Equity Advisors.
                                                                  He has been with
                                                                  Parametric since 1996
                                                                  where he leads the
                                                                  investment, research and
                                                                  product development
                                                                  activities. Previously,
                                                                  he served in Investment
                                                                  Research at GTE
                                                                  Corporation from 1995 to
                                                                  1996, in Equity Research
                                                                  at Vanguard Group from
                                                                  1994 to 1995 and in
                                                                  Investment Research at
                                                                  IBM Corporation from
                                                                  1977 to 1994.

                              Tom Seto           1998 (Inception) Vice President and
                                                                  Portfolio Manager of
                                                                  Parametric. Since
                                                                  joining Parametric in
                                                                  1998, he has been
                                                                  responsible for
                                                                  management of
                                                                  Parametric's active U.S.
                                                                  equity strategies and
                                                                  has managed structured
                                                                  equity portfolios.
                                                                  Previously, he was with
                                                                  Barclays global
                                                                  Investors from 1991 to
                                                                  1998, serving in various
                                                                  capacities including as
                                                                  head of U.S. Equity
                                                                  Index Investments and
                                                                  Portfolio Manager.

</TABLE>

Distributor The Trust's Distributor is PIMCO Funds Distributors LLC, a wholly
            owned subsidiary of PIMCO Advisors. The Distributor, located at
            2187 Atlantic Street, Stamford, CT 06902, is a broker-dealer
            registered with the Securities and Exchange Commission.

            How Fund Shares Are Priced

            The net asset value ("NAV") of a Fund's Class D shares is
            determined by dividing the total value of a Fund's portfolio
            investments and other assets attributable to that class, less any
            liabilities, by the total number of shares outstanding of that
            class.

             For purposes of calculating NAV, portfolio securities and other
            assets for which market quotes are available are stated at market
            value. Market value is generally determined on the basis of last
            reported sales prices, or if no sales are reported, based on
            quotes obtained from a quotation reporting system, established
            market makers, or pricing services. Certain securities or
            investments for which daily market quotes are not readily
            available may be valued, pursuant to guidelines established by the
            Board of Trustees, with reference to other securities or indices.
            Short-term investments having a maturity of 60 days or less are
            generally valued at amortized cost. Exchange traded options,
            futures and options on futures are valued at the settlement price
            determined by the exchange. Other securities for which market
            quotes are not readily available are valued at fair value as
            determined in good faith by the Board of Trustees or persons
            acting at their direction.

             Investments initially valued in currencies other than the U.S.
            dollar are converted to U.S. dollars using exchange rates obtained
            from pricing services. As a result, the NAV of a Fund's shares may
            be affected by changes in the value of currencies in relation to
            the U.S. dollar. The value of securities traded in markets outside
            the United States or denominated in currencies other than the U.S.
            dollar may be affected significantly on a day that the New York
            Stock Exchange is closed and an investor is not able to purchase,
            redeem or exchange shares.

             Fund shares are valued at the close of regular trading (normally
            4:00 p.m., Eastern time) (the "NYSE Close") on each day that the
            New York Stock Exchange is open. For purposes of calculating the
            NAV,

                                                                   Prospectus 32
<PAGE>

            the Funds normally use pricing data for domestic equity securities
            received shortly after the NYSE Close and do not normally take
            into account trading, clearances or settlements that take place
            after the NYSE Close. Domestic fixed income and foreign securities
            are normally priced using data reflecting the earlier closing of
            the principal markets for those securities. Information that
            becomes known to the Funds or their agents after the NAV has been
            calculated on a particular day will not generally be used to
            retroactively adjust the price of a security or the NAV determined
            earlier that day.

             In unusual circumstances, instead of valuing securities in the
            usual manner, the Funds may value securities at fair value or
            estimate their value as determined in good faith by the Board of
            Trustees pursuant to procedures approved by the Board of Trustees.
            Fair valuation may also be used by the Board of Trustees if
            extraordinary events occur after the close of the relevant market
            but prior to the NYSE Close.

            How to Buy and Sell Shares

            The following section provides basic information about how to buy,
            sell (redeem) and exchange Class D shares of the Funds.

General       . Financial Service Firms. Broker-dealers, registered investment
Information advisers and other financial service firms provide varying
            investment products, programs or accounts, pursuant to
            arrangements with the Distributor, through which their clients may
            purchase and redeem Class D shares of the Funds. Firms will
            generally provide or arrange for the provision of some or all of
            the shareholder servicing and account maintenance services
            required by your account, including, without limitation, transfers
            of registration and dividend payee changes. Firms may also perform
            other functions, including generating confirmation statements and
            disbursing cash dividends, and may arrange with their clients for
            other investment or administrative services. Your firm may
            independently establish and charge you transaction fees and/or
            other additional amounts for such services, which may change over
            time. These fees and additional amounts could reduce your
            investment returns on Class D shares of the Funds.

             Your financial service firm may have omnibus accounts and similar
            arrangements with the Trust and may be paid for providing sub-
            transfer agency and other services. A firm may be paid for its
            services directly or indirectly by the Funds, PIMCO Advisors or an
            affiliate (normally not to exceed an annual rate of 0.35% of a
            Fund's average daily net assets attributable to its Class D shares
            and purchased through such firm for its clients). Your firm may
            establish various minimum investment requirements for Class D
            shares of the Funds and may also establish certain privileges with
            respect to purchases, redemptions and exchanges of Class D shares
            or the reinvestment of dividends. Please contact your firm for
            information.

             This Prospectus should be read in connection with your firm's
            materials regarding its fees and services.

              . Calculation of Share Price and Redemption Payments. When you
            buy or sell (redeem) Class D shares of the Funds, you pay or
            receive a price equal to the NAV of the shares. NAVs are
            determined at the close of regular trading (normally, 4:00 p.m.,
            Eastern time) on each day the New York Stock Exchange is open. See
            "How Fund Shares Are Priced" above for details. Generally,
            purchase and redemption orders for Fund shares are processed at
            the NAV next calculated after your order is received by the
            Distributor. In addition, orders received by the Distributor from
            financial service firms after NAV is determined that day will be
            processed at that day's NAV if the orders were received by the
            firm from its customer prior to such determination and were
            transmitted to and received by the Distributor prior to its close
            of business that day (normally 7:00 p.m., Eastern time).

             The Trust does not calculate NAVs or process orders on days when
            the New York Stock Exchange is closed. If your purchase or
            redemption order is received by the Distributor on a day when the
            New York Stock Exchange is closed, it will be processed on the
            next succeeding day when the New York Stock Exchange is open
            (according to the succeeding day's NAV).

Buying      Class D shares of each Fund are continuously offered through
Shares      financial service firms, such as broker-dealers or registered
            investment advisers, with which the Distributor has an agreement
            for the use of the Funds in particular investment products,
            programs or accounts for which a fee may be charged. See
            "Financial Service Firms" above.

             You may purchase Class D shares only through your financial
            service firm. In connection with purchases, your financial service
            firm is responsible for forwarding all necessary documentation to
            the

33 PIMCO Funds: Multi-Manager Series
<PAGE>

            Distributor, and may charge you for such services. If you wish to
            purchase shares of the Funds directly from the Trust or the
            Distributor, you should inquire about the other classes of shares
            offered by the Trust. Please call the Distributor at 1-888-87-
            PIMCO for information about other investment options.

             Class D shares of the Funds will be held in your account with
            your financial service firm and, generally, your firm will hold
            your Class D shares in nominee or street name as your agent. In
            most cases, the Trust's transfer agent, PFPC, Inc., will have no
            information with respect to or control over accounts of specific
            Class D shareholders and you may obtain information about your
            accounts only through your financial service firm. In certain
            circumstances, your firm may arrange to have your shares held in
            your own name or you may subsequently become a holder of record
            for some other reason (for instance, if you terminate your
            relationship with your firm). In such circumstances, please
            contact the Distributor at 1-888-87-PIMCO for information about
            your account. In the interest of economy and convenience,
            certificates for Class D shares will not be issued.

             The Distributor, in its sole discretion, may accept or reject any
            order for purchase of Fund shares. The sale of shares will be
            suspended during any period in which the New York Stock Exchange
            is closed for other than weekends or holidays, or if permitted by
            the rules of the Securities and Exchange Commission, when trading
            on the New York Stock Exchange is restricted or during an
            emergency which makes it impracticable for the Funds to dispose of
            their securities or to determine fairly the value of their net
            assets, or during any other period as permitted by the Securities
            and Exchange Commission for the protection of investors.

Investment  The following investment minimums apply for purchases of Class D
Minimums    shares.


                    Initial Investment                  Subsequent Investments
                ----------------------------------------------------------------
                     $2,500 per Fund                        $100 per Fund

             Your financial service firm may impose different investment
            minimums than the Trust. For example, if your firm maintains an
            omnibus account with a particular Fund, the firm may impose higher
            or lower investment minimums than the Trust when you invest in
            Class D shares of the Fund through your firm. Please contact your
            firm for information.

Exchanging  Except as provided below or in the applicable Fund's or series'
Shares      prospectus(es), you may exchange your Class D shares of any Fund
            for Class D shares of any other Fund or series of PIMCO Funds:
            Pacific Investment Management Series that offers Class D shares.
            Shares are exchanged on the basis of their respective NAVs next
            calculated after your exchange order is received by the
            Distributor. Currently, the Trust does not charge any exchange
            fees or charges. Your financial service firm may impose various
            fees and charges, investment minimums and other requirements with
            respect to exchanges. In addition, an exchange is generally a
            taxable event which will generate capital gains or losses, and
            special rules may apply in computing tax basis when determining
            gain or loss. Please contact your financial service firm to
            exchange your shares and for additional information about the
            exchange privilege.

             The Trust reserves the right to refuse exchange purchases if, in
            the judgment of PIMCO Advisors, the purchase would adversely
            affect a Fund and its shareholders. In particular, a pattern of
            exchanges characteristic of "market-timing" strategies may be
            deemed by PIMCO Advisors to be detrimental to the Trust or a
            particular Fund. Currently, the Trust limits the number of "round
            trip" exchanges an investor may make. An investor makes a "round
            trip" exchange when the investor purchases shares of a particular
            Fund, subsequently exchanges those shares for shares of a
            different PIMCO Fund and then exchanges back into the originally
            purchased Fund. The Trust has the right to refuse any exchange for
            any investor who completes (by making the exchange back into the
            shares of the originally purchased Fund) more than six round trip
            exchanges in any twelve-month period. Although the Trust has no
            current intention of terminating or modifying the exchange
            privilege other than as set forth in the preceding sentence, it
            reserves the right to do so at any time. Except as otherwise
            permitted by Securities and Exchange Commission regulations, the
            Trust will give 60 days' advance notice to your financial service
            firm of any termination or material modification of the exchange
            privilege with respect to Class D shares.

Exchange    Until July 3, 2000, shareholders will not be permitted to exchange
Limitations their shares of any Fund or series of PIMCO Funds: Pacific
            Investment Management Series for shares of the Global Innovation
            Fund, although investors will be permitted to exchange their
            shares of the Global Innovation Fund for shares of the same class
            of any other Fund or series of the Trust or of PIMCO Funds:
            Pacific Investment Management Series. This restriction may be
            changed or eliminated at any time at the discretion of the
            Distributor.

                                                                   Prospectus 34
<PAGE>

Selling     You can sell (redeem) Class D shares through your financial
Shares      service firm on any day the New York Stock Exchange is open. You
            do not pay any fees or other charges to the Trust or the
            Distributor when you sell your shares, although your financial
            service firm may charge you for its services in processing your
            redemption request. Please contact your firm for details. If you
            are the holder of record of your Class D shares, you may contact
            the Distributor at 1-888-87-PIMCO for information regarding how to
            sell your shares directly to the Trust.

             Your financial service firm is obligated to transmit your
            redemption orders to the Distributor promptly and is responsible
            for ensuring that your redemption request is in proper form. Your
            financial service firm will be responsible for furnishing all
            necessary documentation to the Distributor or the Trust's transfer
            agent and may charge you for its services. Redemption proceeds
            will be forwarded to your financial service firm as promptly as
            possible and in any event within seven days after the redemption
            request is received by the Distributor in good order.

             Redemptions of Fund shares may be suspended when trading on the
            Exchange is restricted or during an emergency which makes it
            impracticable for the Funds to dispose of their securities or to
            determine fairly the value of their net assets, or during any
            other period as permitted by the Securities and Exchange
            Commission for the protection of investors. Under these and other
            unusual circumstances, the Trust may suspend redemptions or
            postpone payment for more than seven days, as permitted by law.

Redemptions The Trust had agreed to redeem shares of each Fund solely in cash
In Kind     up to the lesser of $250,000 or 1% of the Fund's net assets during
            any 90-day period for any one shareholder. In consideration of the
            best interests of the remaining shareholders, the Trust may pay
            any redemption proceeds exceeding this amount in whole or in part
            by a distribution in kind of securities held by a Fund in lieu of
            cash. Except for Funds with a tax-efficient management strategy,
            it is highly unlikely that your shares would ever be redeemed in
            kind. If your shares are redeemed in kind, you should expect to
            incur transaction costs upon the disposition of the securities
            received in the distribution.

            Fund Distributions

            Each Fund distributes substantially all of its net investment
            income to shareholders in the form of dividends. You begin earning
            dividends on Fund shares the day after the Trust receives your
            purchase payment. Dividends paid by each Fund with respect to its
            Class D shares are calculated in the same manner and at the same
            time. The following shows when each Fund intends to declare and
            distribute income dividends to shareholders of record.

<TABLE>
<CAPTION>
            Fund                            At Least Annually     Quarterly
            --------------------------------------------------------------------
            <S>                              <C>               <C>
            Equity Income, Renaissance and                            .
              Value Funds
            --------------------------------------------------------------------
            All other Funds                        .
            --------------------------------------------------------------------
</TABLE>

             In addition, each Fund distributes any net capital gains it earns
            from the sale of portfolio securities to shareholders no less
            frequently than annually. Net short-term capital gains may be paid
            more frequently.

            You can choose from the following distribution options:

            . Reinvest all distributions in additional Class D shares of your
              Fund at NAV. This will be done unless you elect another option.

            . Invest all distributions in Class D shares of any other Fund or
              another series of the Trust or PIMCO Funds: Pacific Investment
              Management Series which offers Class D shares at NAV. You must
              have an account existing in the Fund or series selected for
              investment with the identical registered name. This option must
              be elected when your account is set up.

            . Receive all distributions in cash (either paid directly to you
              or credited to your account with your financial service firm).
              This option must be elected when your account is set up.

             Your financial service firm may offer additional distribution
            reinvestment programs or options. Please contact your firm for
            details.

35 PIMCO Funds: Multi-Manager Series
<PAGE>

             You do not pay any sales charges on shares you receive through
            the reinvestment of Fund distributions. If you elect to receive
            Fund distributions in cash and the postal or other delivery
            service is unable to deliver checks to your address of record, the
            Trust's Transfer Agent will hold the returned checks for your
            benefit in a non-interest bearing account.

             For further information on distribution options, please contact
            your financial service firm or call the Distributor at 1-888-87-
            PIMCO.

            Tax Consequences

              . Taxes on Fund distributions. If you are subject to U.S.
            federal income tax, you will be subject to tax on Fund
            distributions whether you received them in cash or reinvested them
            in additional shares of the Funds. For federal income tax
            purposes, Fund distributions will be taxable to you as either
            ordinary income or capital gains.

             Fund dividends (i.e., distributions of investment income) are
            taxable to you as ordinary income. Federal taxes on Fund
            distributions of gains are determined by how long the Fund owned
            the investments that generated the gains, rather than how long you
            have owned your shares. Distributions of gains from investments
            that a Fund owned for more than 12 months will generally be
            taxable to you as capital gains. Distributions of gains from
            investments that the Fund owned for 12 months or less will
            generally be taxable to you as ordinary income.

             Fund distributions are taxable to you even if they are paid from
            income or gains earned by a Fund prior to your investment and thus
            were included in the price you paid for your shares. For example,
            if you purchase shares on or just before the record date of a Fund
            distribution, you will pay full price for the shares and may
            receive a portion of your investment back as a taxable
            distribution.

              . Taxes when you sell (redeem) or exchange your shares. Any gain
            resulting from the sale of Fund shares will generally be subject
            to federal income tax. When you exchange shares of a Fund for
            shares of another series, the transaction will generally be
            treated as a sale of the Fund shares for these purposes, and any
            gain on those shares will generally be subject to federal income
            tax.

              . A Note on the Tax-Efficient Equity Fund. The Tax-Efficient
            Equity Fund utilizes a number of tax-efficient management
            techniques designed to minimize taxable distributions. For
            instance, the Fund generally seeks to minimize realized gains and,
            when realizing gains, attempts to realize gains that will be taxed
            as capital gains (i.e., as gains on investments owned for more
            than 12 months) when distributed to shareholders. Although the
            Fund attempts to minimize taxable distributions, it may be
            expected to earn and distribute taxable income and realize and
            distribute capital gains from time to time.

              . A Note on Foreign Investments. A Fund's investment in foreign
            securities may be subject to foreign withholding taxes. In that
            case, the Fund's yield on those securities would be decreased. In
            addition, a Fund's investments in foreign securities or foreign
            currencies may increase or accelerate the Fund's recognition of
            ordinary income and may affect the timing or amount of the Fund's
            distributions.

             This section relates only to federal income tax consequences of
            investing in the Funds; the consequences under other tax laws may
            differ. You should consult your tax advisor as to the possible
            application of foreign, state and local income tax laws to Fund
            dividends and capital distributions. Please see the Statement of
            Additional Information for additional information regarding the
            tax aspects of investing in the Funds.

            Characteristics and Risks of Securities
            and Investment Techniques

            This section provides additional information about some of the
            principal investments and related risks of the Funds identified
            under "Summary Information" above. It also describes
            characteristics and risks of additional securities and investment
            techniques that are not necessarily principal investment
            strategies but may be used by the Funds from time to time. Most of
            these securities and investment techniques are discretionary,
            which means that the portfolio managers can decide whether to use
            them or not. This Prospectus does not attempt to disclose all of
            the various types of securities and investment techniques that may
            be used by the Funds. As with any mutual fund, investors in the
            Funds must rely on the professional investment judgment and skill
            of PIMCO Advisors, the Sub-Advisers and the individual portfolio
            managers. Please see "Investment Objectives and Policies" in the
            Statement of

                                                                   Prospectus 36
<PAGE>

            Additional Information for more detailed information about the
            securities and investment techniques described in this section and
            about other strategies and techniques that may be used by the
            Funds.

Fixed       Fixed income securities are obligations of the issuer to make
Income      payments of principal and/or interest on future dates, and include
Securities  corporate and government bonds, notes, certificates of deposit,
and         commercial paper, convertible securities and mortgage-backed and
Defensive   other asset-backed securities.
Strategies

             The Capital Appreciation, Mid-Cap and Tax-Efficient Equity Funds
            intend to be as fully invested in common stocks as practicable at
            all times, although, for cash management purposes, each of these
            Funds may maintain a portion of its assets (normally not more than
            10%) in U.S. Government securities, high quality fixed income
            securities, money market obligations and cash to pay certain Fund
            expenses and to meet redemption requests. None of these Funds will
            make defensive investments in response to unfavorable market and
            other conditions and therefore may be particularly vulnerable to
            general declines in stock prices and/or other categories of
            securities in which they invest.

             The Equity Income, Global Innovation, Growth, Innovation,
            Renaissance, Select Growth, Target and Value Funds will each
            invest primarily in common stocks, and may also invest in other
            kinds of equity securities, including preferred stocks and
            securities (including fixed income securities and warrants)
            convertible into or exercisable for common stocks. Each of these
            Funds may also invest a portion of its assets in fixed income
            securities. These Funds may temporarily hold up to 100% of their
            assets in short-term U.S. Government securities and other money
            market instruments for defensive purposes in response to
            unfavorable market and other conditions. The temporary defensive
            strategies described in this paragraph would be inconsistent with
            the investment objective and principal investment strategies of
            each of the noted Funds and may adversely affect the Fund's
            ability to achieve its investment objective.

Companies   Each of the Funds may invest in securities of companies with
With        market capitalizations that are small compared to other publicly
Smaller     traded companies. The Global Innovation and Innovation Funds may
Market      invest significant portions of their assets in smaller companies
Capitali-   and therefore have substantial exposure to the risks described
zations     below. The Mid-Cap and Target Funds also have significant exposure
            to the risks described below because they invest primarily in
            companies with medium-sized market capitalizations, which are
            smaller than the largest companies.

             Companies which are smaller and less well-known or seasoned than
            larger, more widely held companies may offer greater opportunities
            for capital appreciation, but may also involve risks different
            from, or greater than, risks normally associated with larger
            companies. Larger companies generally have greater financial
            resources, more extensive research and development, manufacturing,
            marketing and service capabilities, and more stability and greater
            depth of management and technical personnel than smaller
            companies. Smaller companies may have limited product lines,
            markets or financial resources or may depend on a small,
            inexperienced management group. Securities of smaller companies
            may trade less frequently and in lesser volume than more widely
            held securities and their values may fluctuate more abruptly or
            erratically than securities of larger companies. They may also
            trade in the over-the-counter market or on a regional exchange, or
            may otherwise have limited liquidity. These securities may
            therefore be more vulnerable to adverse market developments than
            securities of larger companies. Also, there may be less publicly
            available information about smaller companies or less market
            interest in their securities as compared to larger companies, and
            it may take longer for the prices of the securities to reflect the
            full value of a company's earnings potential or assets.

             Because securities of smaller companies may have limited
            liquidity, a Fund may have difficulty establishing or closing out
            its positions in smaller companies at prevailing market prices. As
            a result of owning large positions in this type of security, a
            Fund is subject to the additional risk of possibly having to sell
            portfolio securities at disadvantageous times and prices if
            redemptions require the Fund to liquidate its securities
            positions. For these reasons, it may be prudent for a Fund with a
            relatively large asset size to limit the number of relatively
            small positions it holds in securities having limited liquidity in
            order to minimize its exposure to such risks, to minimize
            transaction costs, and to maximize the benefits of research. As a
            consequence, as a Fund's asset size increases, the Fund may reduce
            its exposure to illiquid smaller capitalization securities, which
            could adversely affect performance.

             The Funds may purchase securities in intial public offerings
            (IPOs). These securities are subject to many of the same risks of
            investing in companies with smaller market capitalizations.
            Securities issued in IPOs have no trading history, and information
            about the companies may be available for very limited periods. In
            addition, the prices of securities sold in IPOs may be highly
            volatile. A Fund may not be able to invest in securities issued in
            IPOs to the extent desired because, for example, only a small
            portion of the securities being offered in an IPO may be made
            available to the Fund or because under certain market conditions
            few companies may issue securities in IPOs.

37 PIMCO Funds: Multi-Manager Series
<PAGE>

Foreign     The Global Innovation Fund will invest in the securities of
Securities  issuers located in at least three countries (one of which may be
            the United States). The Equity Income, Growth, Innovation,
            Renaissance, Select Growth, Target and Value Funds may invest up
            to 15% of their respective assets in securities of foreign
            issuers, securities traded principally in securities markets
            outside the United States and/or securities denominated in foreign
            currencies (together, "foreign securities").

             All of the Funds may invest in American Depository Receipts
            ("ADRs"). In addition, the Equity Income, Global Innovation,
            Growth, Innovation, Renaissance, Select Growth, Target and Value
            Funds may invest in European Depository Receipts (EDRs) and Global
            Depository Receipts (GDRs). ADRs are dollar-denominated receipts
            issued generally by domestic banks and representing the deposit
            with the bank of a security of a foreign issuer, and are publicly
            traded on exchanges or over-the-counter in the United States. EDRs
            are receipts similar to ADRs and are issued and traded in Europe.
            GDRs may be offered privately in the United States and also traded
            in public or private markets in other countries.

             Investing in foreign securities involves special risks and
            considerations not typically associated with investing in U.S.
            securities and shareholders should consider carefully the
            substantial risks involved for Funds that invest in these
            securities. These risks include: differences in accounting,
            auditing and financial reporting standards; generally higher
            commission rates on foreign portfolio transactions; the
            possibility of nationalization, expropriation or confiscatory
            taxation; adverse changes in investment or exchange control
            regulations; and political instability. Individual foreign
            economies may differ favorably or unfavorably from the U.S.
            economy in such respects as growth of gross domestic product, rate
            of inflation, capital reinvestment, resources, self-sufficiency
            and balance of payments position. The securities markets, values
            of securities, yields and risks associated with foreign securities
            markets may change independently of each other. Also, foreign
            securities and dividends and interest payable on those securities
            may be subject to foreign taxes, including taxes withheld from
            payments on those securities. Foreign securities often trade with
            less frequency and volume than domestic securities and therefore
            may exhibit greater price volatility. Investments in foreign
            securities may also involve higher custodial costs than domestic
            investments and additional transaction costs with respect to
            foreign currency conversions. Changes in foreign exchange rates
            also will affect the value of securities denominated or quoted in
            foreign currencies.

Emerging    Each of the Funds that may invest in foreign securities may invest
Market      in securities of issuers based in countries with developing (or
Securities  "emerging market") economies. The Global Innovation Fund may
            invest significant portions of its assets in emerging market
            securities. Investing in emerging market securities imposes risks
            different from, or greater than, risks of investing in domestic
            securities or in foreign, developed countries. These risks
            include: smaller market capitalization of securities markets,
            which may suffer periods of relative illiquidity; significant
            price volatility; restrictions on foreign investment; and possible
            repatriation of investment income and capital. In addition,
            foreign investors may be required to register the proceeds of
            sales and future economic or political crises could lead to price
            controls, forced mergers, expropriation or confiscatory taxation,
            seizure, nationalization or the creation of government monopolies.
            The currencies of emerging market countries may experience
            significant declines against the U.S. dollar, and devaluation may
            occur subsequent to investments in these currencies by a Fund.
            Inflation and rapid fluctuations in inflation rates have had, and
            may continue to have, negative effects on the economies and
            securities markets of certain emerging market countries.

             Additional risks of emerging market securities may include:
            greater social, economic and political uncertainty and
            instability; more substantial governmental involvement in the
            economy; less governmental supervision and regulation;
            unavailability of currency hedging techniques; companies that are
            newly organized and small; differences in auditing and financial
            reporting standards, which may result in unavailability of
            material information about issuers; and less developed legal
            systems. In addition, emerging securities markets may have
            different clearance and settlement procedures, which may be unable
            to keep pace with the volume of securities transactions or
            otherwise make it difficult to engage in such transactions.
            Settlement problems may cause a Fund to miss attractive investment
            opportunities, hold a portion of its assets in cash pending
            investment, or be delayed in disposing of a portfolio security.
            Such a delay could result in possible liability to a purchaser of
            the security.

             Special Risks of Investing in Russian and Other Eastern European
            Securities. The Global Innovation Fund may invest a portion of its
            assets in securities of issuers located in Russia and in other
            Eastern European countries. While investments in securities of
            such issuers are subject generally to the same risks associated
            with investments in other emerging market countries described
            above, the political, legal and operational risks of investing in
            Russian and other Eastern European issuers, and of having assets
            custodied within these countries, may be particularly acute. A
            risk of particular note with respect to direct investment in
            Russian securities is the way in which ownership of shares of
            companies is

                                                                   Prospectus 38
<PAGE>

            normally recorded. When a Fund invests in a Russian issuer, it
            will normally receive a "share extract," but that extract is not
            legally determinative of ownership. The official record of
            ownership of a company's share is maintained by the company's
            share registrar. Such share registrars are completely under the
            control of the issuer, and investors are provided with few legal
            rights against such registrars.

Foreign     A Fund that invests directly in foreign currencies or in
Currencies  securities that trade in, and receive revenues in, foreign
            currencies will be subject to currency risk. The Global Innovation
            Fund is particularly sensitive to this risk.

             Foreign currency exchange rates may fluctuate significantly over
            short periods of time. They generally are determined by supply and
            demand and the relative merits of investments in different
            countries, actual or perceived changes in interest rates and other
            complex factors. Currency exchange rates also can be affected
            unpredictably by intervention (or the failure to intervene) by
            U.S. or foreign governments or central banks, or by currency
            controls or political developments. For example, significant
            uncertainty surrounds the recent introduction of the euro (a
            common currency unit for the European Union) in January 1999 and
            the effect it may have on the value of securities denominated in
            local European currencies. These and other currencies in which the
            Funds' assets are denominated may be devalued against the U.S.
            dollar, resulting in a loss to the Funds.

             Foreign Currency Transactions. The Equity Income, Global
            Innovation, Growth, Innovation, Renaissance, Select Growth, Target
            and Value Funds may enter into forward foreign currency exchange
            contracts to reduce the risks of adverse changes in foreign
            exchange rates. In addition, the Global Innovation Fund may buy
            and sell foreign currency futures contracts and options on foreign
            currencies and foreign currency futures. A forward foreign
            currency exchange contract, which involves an obligation to
            purchase or sell a specific currency at a future date at a price
            set at the time of the contract, reduces a Fund's exposure to
            changes in the value of the currency it will deliver and increases
            its exposure to changes in the value of the currency it will
            receive for the duration of the contract. The effect on the value
            of a Fund is similar to selling securities denominated in one
            currency and purchasing securities denominated in another
            currency. Contracts to sell foreign currency would limit any
            potential gain which might be realized by a Fund if the value of
            the hedged currency increases. A Fund may enter into these
            contracts to hedge against foreign exchange risk arising from the
            Fund's investment or anticipated investment in securities
            denominated in foreign currencies. Suitable hedging transactions
            may not be available in all circumstances and there can be no
            assurance that a Fund will engage in such transactions at any
            given time or from time to time. Also, such transactions may not
            be successful and may eliminate any chance for a Fund to benefit
            from favorable fluctuations in relevant foreign currencies.

             The Global Innovation Fund may also enter into these contracts
            for purposes of increasing exposure to a foreign currency or to
            shift exposure to foreign currency fluctuations from one currency
            to another. To the extent that it does so, the Fund will be
            subject to the additional risk that the relative value of
            currencies will be different than anticipated by the Fund's
            portfolio manager. The Global Innovation Fund may use one currency
            (or a basket of currencies) to hedge against adverse changes in
            the value of another currency (or a basket of currencies) when
            exchange rates between the two currencies are positively
            correlated. The Fund will segregate assets determined to be liquid
            by PIMCO Advisors or its Sub-Adviser in accordance with procedures
            established by the Board of Trustees to cover its obligations
            under forward foreign currency exchange contracts entered into for
            non-hedging purposes.

Convertible Each Fund may invest in convertible securities. Convertible
Securities  securities are generally preferred stocks and other securities,
            including fixed income securities and warrants, that are
            convertible into or exercisable for common stock at either a
            stated price or a stated rate. The price of a convertible security
            will normally vary in some proportion to changes in the price of
            the underlying common stock because of this conversion or exercise
            feature. However, the value of a convertible security may not
            increase or decrease as rapidly as the underlying common stock. A
            convertible security will normally also provide income and is
            subject to interest rate risk. While convertible securities
            generally offer lower interest or dividend yields than non-
            convertible fixed income securities of similar quality, their
            value tends to increase as the market value of the underlying
            stock increases and to decrease when the value of the underlying
            stock decreases. Also, a Fund may be forced to convert a security
            before it would otherwise choose, which may have an adverse effect
            on the Fund's ability to achieve its investment objective.

Derivatives Each Fund (except the Capital Appreciation and Mid-Cap Funds) may,
            but is not required to, use a number of derivative instruments for
            risk management purposes or as part of its investment strategies.
            Generally, derivatives are financial contracts whose value depends
            upon, or is derived from, the value of an underlying asset,
            reference rate or index, and may relate to stocks, bonds, interest
            rates, currencies

39 PIMCO Funds: Multi-Manager Series
<PAGE>

            or currency exchange rates, commodities, and related indexes. A
            portfolio manager may decide not to employ any of these strategies
            and there is no assurance that any derivatives strategy used by a
            Fund will succeed.

             Examples of derivative instruments that the Funds may use include
            options contracts, futures contracts, options on futures contracts
            and swap agreements. The Equity Income, Global Innovation, Growth,
            Innovation, Renaissance, Select Growth, Target, Tax-Efficient
            Equity and Value Funds may purchase and sell (write) call and put
            options on securities, securities indexes and foreign currencies.
            Each of these Funds may purchase and sell futures contracts and
            options thereon with respect to securities, securities indexes and
            foreign currencies. The Tax-Efficient Equity Fund may enter into
            swap agreements with respect to securities indexes. A description
            of these and other derivative instruments that the Funds may use
            are described under "Investment Objectives and Policies" in the
            Statement of Additional Information.

             A Fund's use of derivative instruments involves risks different
            from, or greater than, the risks associated with investing
            directly in securities and other more traditional investments. A
            description of various risks associated with particular derivative
            instruments is included in "Investment Objectives and Policies" in
            the Statement of Additional Information. The following provides a
            more general discussion of important risk factors relating to all
            derivative instruments that may be used by the Funds.

             Management Risk Derivative products are highly specialized
            instruments that require investment techniques and risk analyses
            different from those associated with stocks and bonds. The use of
            a derivative requires an understanding not only of the underlying
            instrument but also of the derivative itself, without the benefit
            of observing the performance of the derivative under all possible
            market conditions.

             Credit Risk The use of a derivative instrument involves the risk
            that a loss may be sustained as a result of the failure of another
            party to the contract (usually referred to as a "counterparty") to
            make required payments or otherwise comply with the contract's
            terms.

             Liquidity Risk Liquidity risk exists when a particular derivative
            instrument is difficult to purchase or sell. If a derivative
            transaction is particularly large or if the relevant market is
            illiquid (as is the case with many privately negotiated
            derivatives), it may not be possible to initiate a transaction or
            liquidate a position at an advantageous time or price.

             Leveraging Risk Because many derivatives have a leverage
            component, adverse changes in the value or level of the underlying
            asset, reference rate or index can result in a loss substantially
            greater than the amount invested in the derivative itself. Certain
            derivatives have the potential for unlimited loss, regardless of
            the size of the initial investment. When a Fund uses derivatives
            for leverage, investments in that Fund will tend to be more
            volatile, resulting in larger gains or losses in response to
            market changes. To limit leverage risk, each Fund will segregate
            assets determined to be liquid by PIMCO Advisors or a Sub-Adviser
            in accordance with procedures established by the Board of Trustees
            (or, as permitted by applicable regulation, enter into certain
            offsetting positions) to cover its obligations under derivative
            instruments.

             Lack of Availability Because the markets for certain derivative
            instruments (including markets located in foreign countries) are
            relatively new and still developing, suitable derivatives
            transactions may not be available in all circumstances for risk
            management or other purposes. There is no assurance that a Fund
            will engage in derivatives transactions at any time or from time
            to time. A Fund's ability to use derivatives may also be limited
            by certain regulatory and tax considerations.

             Market and Other Risks Like most other investments, derivative
            instruments are subject to the risk that the market value of the
            instrument will change in a way detrimental to a Fund's interest.
            If a portfolio manager incorrectly forecasts the values of
            securities, currencies or interest rates or other economic factors
            in using derivatives for a Fund, the Fund might have been in a
            better position if it had not entered into the transaction at all.
            While some strategies involving derivative instruments can reduce
            the risk of loss, they can also reduce the opportunity for gain or
            even result in losses by offsetting favorable price movements in
            other Fund investments. A Fund may also have to buy or sell a
            security at a disadvantageous time or price because the Fund is
            legally required to maintain offsetting positions or asset
            coverage in connection with certain derivatives transactions.

             Other risks in using derivatives include the risk of mispricing
            or improper valuation of derivatives and the inability of
            derivatives to correlate perfectly with underlying assets, rates
            and indexes. Many derivatives, in particular privately negotiated
            derivatives, are complex and often valued subjectively. Improper
            valuations can result in increased cash payment requirements to
            counterparties or a loss of

                                                                   Prospectus 40
<PAGE>

            value to a Fund. Also, the value of derivatives may not correlate
            perfectly, or at all, with the value of the assets, reference
            rates or indexes they are designed to closely track. In addition,
            a Fund's use of derivatives may cause the Fund to realize higher
            amounts of short-term capital gains (taxed at ordinary income tax
            rates when distributed to shareholders who are individuals) than
            if the Fund had not used such instruments.

Credit      The Funds may invest in securities based on their credit ratings
Ratings     assigned by rating agencies such as Moody's Investors Service,
and         Inc. ("Moody's") and Standard & Poor's Ratings Services ("S&P").
Unrated     Moody's, S&P and other rating agencies are private services that
Securities  provide ratings of the credit quality of fixed income securities,
            including convertible securities. The Appendix to the Statement of
            Additional Information describes the various ratings assigned to
            fixed income securities by Moody's and S&P. Ratings assigned by a
            rating agency are not absolute standards of credit quality and do
            not evaluate market risk. Rating agencies may fail to make timely
            changes in credit ratings and an issuer's current financial
            condition may be better or worse than a rating indicates. A Fund
            will not necessarily sell a security when its rating is reduced
            below its rating at the time of purchase. PIMCO Advisors and the
            Sub-Advisers do not rely solely on credit ratings, and develop
            their own analysis of issuer credit quality.

             A Fund may purchase unrated securities (which are not rated by a
            rating agency) if its portfolio manager determines that the
            security is of comparable quality to a rated security that the
            Fund may purchase. Unrated securities may be less liquid than
            comparable rated securities and involve the risk that the
            portfolio manager may not accurately evaluate the security's
            comparative credit rating.

Loans of    For the purpose of achieving income, each Fund may lend its
Portfolio   portfolio securities to brokers, dealers, and other financial
Securities  institutions provided a number of conditions are satisfied,
            including that the loan is fully collateralized. Please see
            "Investment Objectives and Policies" in the Statement of
            Additional Information for details. When a Fund lends portfolio
            securities, its investment performance will continue to reflect
            changes in the value of the securities loaned, and the Fund will
            also receive a fee or interest on the collateral. Securities
            lending involves the risk of loss of rights in the collateral or
            delay in recovery of the collateral if the borrower fails to
            return the security loaned or becomes insolvent. A Fund may pay
            lending fees to the party arranging the loan.

Short       Each Fund may make short sales as part of its overall portfolio
Sales       management strategies or to offset a potential decline in the
            value of a security. A short sale involves the sale of a security
            that is borrowed from a broker or other institution to complete
            the sale. A Fund may only enter into short selling transactions if
            the security sold short is held in the Fund's portfolio or if the
            Fund has the right to acquire the security without the payment of
            further consideration. For these purposes, a Fund may also hold or
            have the right to acquire securities which, without the payment of
            any further consideration, are convertible into or exchangeable
            for the securities sold short. Short sales expose a Fund to the
            risk that it will be required to acquire, convert or exchange
            securities to replace the borrowed securities (also known as
            "covering" the short position) at a time when the securities sold
            short have appreciated in value, thus resulting in a loss to the
            Fund.

When-       Each Fund may purchase securities which it is eligible to purchase
Issued,     on a when-issued basis, may purchase and sell such securities for
Delayed     delayed delivery and may make contracts to purchase such
Delivery    securities for a fixed price at a future date beyond normal
and         settlement time (forward commitments). When-issued transactions,
Forward     delayed delivery purchases and forward commitments involve a risk
Commitment  of loss if the value of the securities declines prior to the
Transac-    settlement date. This risk is in addition to the risk that the
tions       Fund's other assets will decline in value. Therefore, these
            transactions may result in a form of leverage and increase a
            Fund's overall investment exposure. Typically, no income accrues
            on securities a Fund has committed to purchase prior to the time
            delivery of the securities is made, although a Fund may earn
            income on securities it has segregated to cover these positions.

Repurchase  Each Fund may enter into repurchase agreements, in which the Fund
Agreements  purchases a security from a bank or broker-dealer that agrees to
            repurchase the security at the Fund's cost plus interest within a
            specified time. If the party agreeing to repurchase should
            default, the Fund will seek to sell the securities which it holds.
            This could involve procedural costs or delays in addition to a
            loss on the securities if their value should fall below their
            repurchase price. Those Funds whose investment objectives do not
            include the earning of income will invest in repurchase agreements
            only as a cash management technique with respect to that portion
            of its portfolio maintained in cash. Repurchase agreements
            maturing in more than seven days are considered illiquid
            securities.

Reverse     Each Fund may enter into reverse repurchase agreements, subject to
Repurchase  the Fund's limitations on borrowings. A reverse repurchase
Agreements  agreement involves the sale of a security by a Fund and its
And Other   agreement to repurchase the instrument at a specified time and
Borrowings  price, and may be considered a form of borrowing

41 PIMCO Funds: Multi-Manager Series

<PAGE>

            for some purposes. A Fund will segregate assets determined to be
            liquid by PIMCO Advisors or a Sub-Adviser in accordance with
            procedures established by the Board of Trustees to cover its
            obligations under reverse repurchase agreements. A Fund also may
            borrow money for investment purposes subject to any policies of
            the Fund currently described in this Prospectus or in the
            Statement of Additional Information. Reverse repurchase agreements
            and other forms of borrowings may create leveraging risk for a
            Fund.

Illiquid    Each Fund may invest in securities that are illiquid so long as
Securities  not more than 15% of the value of the Fund's net assets (taken at
            market value at the time of investment) would be invested in such
            securities. Certain illiquid securities may require pricing at
            fair value as determined in good faith under the supervision of
            the Board of Trustees. A portfolio manager may be subject to
            significant delays in disposing of illiquid securities held by a
            Fund, and transactions in illiquid securities may entail
            registration expenses and other transaction costs that are higher
            than those for transactions in liquid securities. The term
            "illiquid securities" for this purpose means securities that
            cannot be disposed of within seven days in the ordinary course of
            business at approximately the amount at which a Fund has valued
            the securities. Please see "Investment Objectives and Policies" in
            the Statement of Additional Information for a listing of various
            securities that are generally considered to be illiquid for these
            purposes. Restricted securities, i.e., securities subject to legal
            or contractual restrictions on resale, may be illiquid. However,
            some restricted securities (such as securities issued pursuant to
            Rule 144A under the Securities Act of 1933 and certain commercial
            paper) may be treated as liquid, although they may be less liquid
            than registered securities traded on established secondary
            markets.

Investment  Each of the Funds may invest up to 5% of its assets in other
in Other    investment companies. As a shareholder of an investment company, a
Investment  Fund may indirectly bear service and other fees which are in
Companies   addition to the fees the Fund pays its service providers.

Portfolio   With the exception of the Tax-Efficient Equity Fund, the length of
Turnover    time a Fund has held a particular security is not generally a
            consideration in investment decisions. A change in the securities
            held by a Fund is known as "portfolio turnover." Each Fund may
            engage in active and frequent trading of portfolio securities to
            achieve its investment objective and principal investment
            strategies, particularly during periods of volatile market
            movements, although the Tax-Efficient Equity Fund will generally
            attempt to limit portfolio turnover as part of its tax-efficient
            management strategies. High portfolio turnover (e.g., over 100%)
            involves correspondingly greater expenses to a Fund, including
            brokerage commissions or dealer mark-ups and other transaction
            costs on the sale of securities and reinvestments in other
            securities. Such sales may also result in realization of taxable
            capital gains, including short-term capital gains (which are taxed
            at ordinary income tax rates when distributed to shareholders who
            are individuals). The trading costs and tax effects associated
            with portfolio turnover may adversely affect a Fund's performance.

Changes     The investment objective of each of the Global Innovation, Growth,
in          Innovation, Renaissance, Select Growth, Target and Tax-Efficient
Investment  Equity Funds described in this Prospectus may be changed by the
Objectives  Board of Trustees without shareholder approval. The investment
and         objective of each other Fund is fundamental and may not be changed
Policies    without shareholder approval. Unless otherwise stated in the
            Statement of Additional Information, all investment policies of
            the Funds may be changed by the Board of Trustees without
            shareholder approval. If there is a change in a Fund's investment
            objective or policies, including a change approved by shareholder
            vote, shareholders should consider whether the Fund remains an
            appropriate investment in light of their then current financial
            position and needs.

New Funds   In addition to the risks described under "Summary of Principal
            Risks" above and in this section, the Global Innovation Fund is
            newly formed and therefore has no history upon which investors can
            evaluate its likely performance. Accordingly, there can be no
            assurance that the Fund will achieve its investment objective.
            Also, it is possible that the Fund may invest in securities
            offered in initial public offerings and other similar transactions
            which, because of the Fund's size, have a disproportionate impact
            on the Fund's performance results. The Fund would not necessarily
            have achieved the same performance results if its aggregate net
            assets had been greater.

Percentage  Unless otherwise stated, all percentage limitations on Fund
Investment  investments listed in this Prospectus will apply at the time of
Limitations investment. A Fund would not violate these limitations unless an
            excess or deficiency occurs or exists immediately after and as a
            result of an investment.

Other       The Funds may invest in other types of securities and use a
Investments variety of investment techniques and strategies which are not
and         described in this Prospectus. These securities and techniques may
Techniques  subject the Funds to additional risks. Please see the Statement of
            Additional Information for additional information about the
            securities and investment techniques described in this Prospectus
            and about additional securities and techniques that may be used by
            the Funds.

                                                                   Prospectus 42
<PAGE>

            Financial Highlights

            The financial highlights table is intended to help you understand
            the financial performance of Class D shares of each Fund since the
            class of shares was first offered. Certain information reflects
            financial results for a single Fund share. The total returns in
            the table represent the rate that an investor would have earned or
            lost on an investment in Class D shares of a Fund, assuming
            reinvestment of all dividends and distributions. This information
            has been audited by PricewaterhouseCoopers LLP, whose report,
            along with each Fund's financial statements, are included in the
            Trust's annual report to shareholders. The annual report is
            incorporated by reference in the Statement of Additional
            Information and is available free of charge upon request from the
            Distributor. The Global Innovation, Growth, Select Growth and
            Target Funds did not offer Class D shares during the periods
            shown.

<TABLE>
<CAPTION>
                                                            Net Realized/    Total Income   Dividends   Distributions
 Year or                    Net Asset Value      Net          Unrealized        (Loss)       From Net      From Net
  Period                       Beginning     Investment     Gain (Loss) on  From Investment Investment Realized Capital
  Ended                        of Period    Income (Loss)    Investments      Operations      Income        Gains
-----------------------------------------------------------------------------------------------------------------------
 <S>                        <C>             <C>             <C>             <C>             <C>        <C>
 Capital Appreciation Fund
  06/30/99                       $26.01          $0.06 (a)        $2.34 (a)       $2.40        $(0.13)       $(1.65)
  04/08/98-06/30/98               25.41           0.02 (a)         0.58 (a)        0.60          0.00          0.00
 Equity Income Fund (i)
  06/30/99                       $16.04          $0.40 (a)        $1.27 (a)       $1.67        $(0.36)       $(1.76)
  04/08/98-06/30/98               16.71           0.09 (a)        (0.66)(a)       (0.57)        (0.10)         0.00
 Innovation Fund (i)
  06/30/99                       $24.28         $(0.29)(a)       $14.79 (a)      $14.50         $0.00        $(1.26)
  04/08/98-06/30/98               21.50          (0.05)(a)         2.83 (a)        2.78          0.00          0.00
 Mid-Cap Fund
  06/30/99                       $23.99          $0.03 (a)       $(0.04)(a)      $(0.01)       $(0.01)       $(1.07)
  04/08/98-06/30/98               23.97           0.00 (a)         0.02 (a)        0.02          0.00          0.00
 Renaissance Fund (i)
  06/30/99                       $19.10          $0.00 (a)        $1.45 (a)       $1.45         $0.00        $(2.33)
  04/08/98-06/30/98               18.99           0.01 (a)         0.10 (a)        0.11          0.00          0.00
 Tax-Efficient Equity Fund
  07/10/98-06/30/99              $10.00          $0.03 (a)        $1.56 (a)       $1.59         $0.00         $0.00
 Value Fund (i)
  06/30/99                       $15.64          $0.23 (a)        $1.37 (a)       $1.60        $(0.23)       $(1.72)
  04/08/98-06/30/98               15.99           0.04 (a)        (0.34)(a)       (0.30)        (0.05)         0.00
</TABLE>
-------
* Annualized
(a)Per share amounts based upon average number of shares outstanding during the
period.
(i) The information provided for the Equity Income, Innovation, Renaissance and
    Value Funds reflects results of operations under each Funds' former Sub-
    Adviser through May 8, 2000, March 6, 1999, May 7, 1999 and May 8, 2000,
    respectively; the Funds would not necessarily have achieved the performance
    results shown above under their current investment management arrangements.

43 PIMCO Funds: Multi-Manager Series
<PAGE>




<TABLE>
<CAPTION>
                                                                                        Ratio of Net
Distributions                                                             Ratio of      Investment
in Excess of                    Net Asset                                 Expenses to Income (Loss) to
Net Realized         Total     Value End of               Net Assets End  Average Net   Average Net      Portfolio
Capital Gains    Distributions    Period    Total Return of Period (000s)   Assets         Assets      Turnover Rate
  ------------------------------------------------------------------------------------------------------------------
  <S>            <C>           <C>          <C>          <C>              <C>         <C>              <C>
       $0.00         $(1.78)       $26.63        10.17%          $339        1.10%          0.24%           120%
        0.00           0.00         26.01         2.36            118        1.10*          0.27*            75
       $0.00         $(2.12)       $15.59        12.21%          $106        1.10%          2.73%            76%
        0.00          (0.10)        16.04        (3.43)           104        1.10*          2.23*            45
       $0.00         $(1.26)       $37.52        61.62%       $18,366        1.30%         (0.89)%          119%
        0.00           0.00         24.28        12.93            139        1.30*         (0.99)*          100
       $0.00         $(1.08)       $22.90         0.25%          $359        1.10%          0.16%            85%
        0.00           0.00         23.99         0.08            142        1.10*          0.03*            66
       $0.00         $(2.33)       $18.22        10.01%          $192        1.25%         (0.02)%          221%
        0.00           0.00         19.10         0.58            126        1.25*          0.21*           192
       $0.00          $0.00        $11.59        15.90%          $869        1.11%*         0.30%*           13%
       $0.00         $(1.95)       $15.29        12.00%          $118        1.10%          1.61%           101%
        0.00          (0.05)        15.64        (1.85)            98        1.10*          1.23*            77
</TABLE>

                                                                   Prospectus 44
<PAGE>

            PIMCO Funds: Multi-Manager Series

            The Trust's Statement of Additional Information ("SAI") and annual
            and semi-annual reports to shareholders include additional
            information about the Funds. The SAI and the financial statements
            included in the Funds' most recent annual report to shareholders
            are incorporated by reference into this Prospectus, which means
            they are part of this Prospectus for legal purposes. The Funds'
            annual report discusses the market conditions and investment
            strategies that significantly affected each Fund's performance
            during its last fiscal year.

            You may get free copies of any of these materials, request other
            information about a Fund, or make shareholder inquiries by calling
            1-888-87-PIMCO, or by writing to:

                  PIMCO Funds Distributors LLC
                  2187 Atlantic Street
                  Stamford, CT 06902

            You may also contact your financial service firm for additional
            information.

            You may review and copy information about the Trust, including its
            SAI, at the Securities and Exchange Commission's public reference
            room in Washington, D.C. You may call the Commission at 1-202-942-
            8090 for information about the operation of the public reference
            room. You may also access reports and other information about the
            Trust on the EDGAR database on the Commission's Web site at
            www.sec.gov. You may get copies of this information, with payment
            of a duplication fee, by electronic request at the following e-
            mail address: [email protected], or by writing the Public
            Reference Section of the Commission, Washington, D.C. 20549-6009.
            You may need to refer to the Trust's file number under the
            Investment Company Act, which is 811-6161.

            You can also visit our Web site at www.pimcofunds.com for
            additional information about the Funds.

            [LOGO OF PIMCO FUNDS]

            File No. 811-6161
<PAGE>

Presenting the new PIMCO Funds Web site at www.pimcofunds.com

[GRAPHIC]
You'll find all the content you've come to rely on--at pimcofunds.com--and more.

As part of our commitment to provide our shareholders with easy access to timely
information, we're pleased to introduce a redesigned version of the PIMCO Funds
Web site (www.pimcofunds.com).

Designed to make the site user-friendly, you'll immediately notice improved
navigation accompanied by intuitive labeling and graphics that load quickly.
Content updates include expanded detail throughout the Fund Information section,
and a variety of forms and literature are now available for printing and viewing
online or for download to your hard drive.

Fund Information Section
In addition to everything we previously offered in the Fund Information section,
we now offer the following:

 . Regular commentary from the manager of each fund.

 . A better design without frames allows you to bookmark fund profile pages.

 . Cross-links give you immediate access to literature with more detail about
each fund.

 . One-click allows you to check out the NAV and year-to-date performance of any
PIMCO Fund.

PIMCO Funds Bond Center
The PIMCO Funds Bond Center continues to deliver the best research and news
about bonds and bond investing. Rely on the Bond Center to bring you the latest
information from our world-class team of investment professionals led by PIMCO
founder Bill Gross.

 . Investment Outlook--Bill Gross's monthly newsletter on economic and interest
rate trends.

 . Manager Commentary--Read insight from PIMCO bond managers on the economy and
its impact on their funds.

Daily Manager Commentary
PIMCO's Daily Manager Commentary provides investment insights from PIMCO's fund
managers, including their outlooks on the economy and fund strategies that
relate to the current economic climate. This commentary, on a wide range of
subjects, is uniquely provided from the manager's perspective and helps
investors make informed decisions based on information directly from PIMCO's
investment professionals.



PZ006.6/00                                            Not part of the Prospectus

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

[LOGO OF PIMCO FUNDS]

PIMCO Funds Distributors LLC

2187 Atlantic Street Stamford, CT 06902-6896
<PAGE>

PIMCO Funds: Multi-Manager Series


--------------------------------------------------------------------------------
INVESTMENT ADVISOR AND ADMINISTRATOR
PIMCO Advisors L.P., 800 Newport Center Drive, Newport Beach, CA 92660

--------------------------------------------------------------------------------
PORTFOLIO MANAGERS
PIMCO Equity Advisors division of PIMCO Advisors L.P., Cadence Capital
Management, Parametric Portfolio Associates

--------------------------------------------------------------------------------
DISTRIBUTOR
PIMCO Funds Distributors LLC, 2187 Atlantic Street, Stamford, CT 06902-6896

--------------------------------------------------------------------------------
CUSTODIAN
State Street Bank & Trust Co., 801 Pennsylvania, Kansas City, MO 64105

--------------------------------------------------------------------------------
SHAREHOLDER SERVICING AGENT AND TRANSFER AGENT
PFPC, Inc., Box 9688, Providence, RI 02940

--------------------------------------------------------------------------------
INDEPENDENT ACCOUNTANTS
PricewaterhouseCoopers LLP, 1055 Broadway, Kansas City, MO 64105

--------------------------------------------------------------------------------
LEGAL COUNSEL
Ropes & Gray, One International Place, Boston, MA 02110

--------------------------------------------------------------------------------
For further information about the PIMCOFunds, call 1-800-426-0107 or visit our
Web site at www.pimcofunds.com.

                                          Not part of the Prospectus
<PAGE>

                        PIMCO FUNDS: MULTI-MANAGER SERIES

                          Supplement Dated June 1, 2000
                                     to the
                          Prospectus for Class D Shares
                               Dated June 1, 2000

                    Disclosure Relating to PIMCO Target Fund

         The Prospectus is revised by adding the following subsection to the end
of the section captioned "How to Buy and Sell Shares."

Additional Restrictions

         Class D shares of PIMCO Target Fund will not be available for purchase
until June 12, 2000. Similarly, until June 12, 2000, shareholders will not be
permitted to exchange their shares of any Fund or series of PIMCO Funds: Pacific
Investment Management Series for Class D shares of PIMCO Target Fund. These
restrictions may be changed or eliminated at any time at the discretion of the
Trust's distributor, PIMCO Funds Distributors LLC.


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