LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
N-30B-2, 1994-03-31
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<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
President's Letter......................................................     1
Portfolio of Investments:
  Prime Money Market Fund...............................................     2
  Prime Value Money Market Fund.........................................     6
  Government Obligations Money Market Fund..............................    12
  100% Government Obligations Money Market Fund.........................    14
  Treasury Instruments Money Market Fund................................    16
  Treasury Instruments Money Market Fund II.............................    17
  100% Treasury Instruments Money Market Fund...........................    18
  Tax-Free Money Market Fund............................................    20
  Municipal Money Market Fund...........................................    26
  California Municipal Money Market Fund................................    38
Statements of Assets and Liabilities....................................    41
Statements of Operations................................................    45
Statements of Changes in Net Assets.....................................    47
Financial Highlights:
  Prime Money Market Fund...............................................    49
  Prime Value Money Market Fund.........................................    50
  Government Obligations Money Market Fund..............................    51
  100% Government Obligations Money Market Fund.........................    52
  Treasury Instruments Money Market Fund................................    53
  Treasury Instruments Money Market Fund II.............................    54
  100% Treasury Instruments Money Market Fund...........................    55
  Tax-Free Money Market Fund............................................    56
  Municipal Money Market Fund...........................................    57
  California Municipal Money Market Fund................................    58
Notes to Financial Statements...........................................    59
Report of Independent Auditors..........................................    66
Tax Information.........................................................    67
</TABLE>
<PAGE>
Dear Shareholders:
 
    We  are  pleased  to  present  the Annual  Report  for  the  Lehman Brothers
Institutional Funds Group Trust  (the "Trust") for the  period from the  Trust's
commencement  of operations on February 8,  1993, through its fiscal year-end on
January 31,  1994.  This Report  includes  the portfolio  holdings  and  audited
financial statements for the Money Market Funds that comprise the Trust, namely:
 
        - PRIME MONEY MARKET FUNDS
        Prime Money Market Fund
        Prime Value Money Market Fund
 
        - GOVERNMENT MONEY MARKET FUNDS
        Government Obligations Money Market Fund
        100% Government Obligations Money Market Fund
        Treasury Instruments Money Market Fund
        Treasury Instruments Money Market Fund II
        100% Treasury Instruments Money Market Fund
 
        - TAX-EXEMPT MONEY MARKET FUNDS
        Tax-Free Money Market Fund
        Municipal Money Market Fund
        California Municipal Money Market Fund
 
A YEAR OF SUBSTANTIAL GROWTH AND SOLID INVESTMENT RESULTS.
 
    Thanks to you our first year of operations was very successful. The combined
assets  in the Lehman Brothers Institutional Funds Group Trust grew to more than
$9.6 billion during January 1994, falling back to $8.1 billion as of the end  of
the  month. By industry  standards, this represents  a remarkable growth record.
This growth  is  directly  attributable  to  the  Funds'  experienced  portfolio
management team, the Funds' low fees and expenses which specifically benefit our
shareholders, and Lehman Brothers' high standards for service delivery.
 
    It  is also noteworthy that since September 1993 five of our Funds have been
consistently recognized as top performers in their investment category by  MONEY
MARKET REPORT-R- published by IBC/Donoghue, Inc.
 
INTRODUCING TWO NEW FUNDS.
 
    We  are pleased to announce the introduction of the LEHMAN BROTHERS FLOATING
RATE U.S. GOVERNMENT FUND and the LEHMAN BROTHERS SHORT DURATION U.S. GOVERNMENT
FUND. These two new Funds are offered  in response to many of our investors  who
expressed  a need for  products with higher  yields than money  market funds and
minimal  fluctuations  in  net  asset  value.  Lehman  Brothers  has   extensive
experience  in mortgage-backed securities. The firm is not only a leader in both
the primary and secondary markets for mortgage-backed securities, but our  fixed
income  research capabilities, which include  mortgage research, placed first in
INSTITUTIONAL INVESTOR MAGAZINE'S "All-America Fixed-Income Research Team"  poll
for 1993.
 
                                * * * * * * * *
    In  keeping with our commitment to  our clients to provide superior products
and services, we hope you find the publications we send to you useful in keeping
up-to-date on  the  markets  and  the  investment  strategies  utilized  in  the
management  of the Funds. MARKET COMMENTARY, published every two weeks, includes
an outlook on the markets and strategy for the Funds. SCHEDULE OF INVESTMENTS, a
monthly publication, includes  the portfolio holdings  for each Fund.  PORTFOLIO
HIGHLIGHTS  is a  quarterly publication  with more  detailed information  on the
economy, markets and the Funds.
 
    All of us at Lehman Brothers thank you for helping to make our first year of
operations so successful. We truly appreciate  the confidence you have shown  in
us  by investing in the Lehman Brothers  Institutional Funds Group Trust, and we
look forward  to  continuing to  serve  you  by providing  the  highest  quality
investment products and services.
 
                                          Sincerely,
 
                                          Peter Meenan
                                          PRESIDENT
                                          Lehman Brothers Institutional Funds
                                          Group Trust
March 16, 1994
 
                                       1
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS
January 31, 1994
 
                            Prime Money Market Fund
 
<TABLE>
<CAPTION>
                                                          INTEREST       MATURITY        VALUE
FACE VALUE                                                  RATE+          DATE        (NOTE 1)
- -----------                                            ---------------  -----------  -------------
<C>          <S>                                       <C>              <C>          <C>
             COMMERCIAL PAPER -- 45.9%
$50,000,000  Bankers Trust New York Corporation......         3.386%        7/5/94   $  49,287,750
 50,000,000  Bankers Trust New York Corporation......         3.542        10/3/94      48,830,833
 50,000,000  The Bear Stearns Companies Inc..........         3.291        7/18/94      49,248,500
 25,000,000  The C.I.T Group Holding, Inc. ..........         3.108        3/25/94      24,888,417
 50,000,000  The C.I.T Group Holding, Inc. ..........         3.316        4/15/94      49,667,445
 54,582,000  Clipper Receivables Corporation.........         3.090        2/22/94      54,483,934
 15,000,000  Corporate Asset Funding Company,
              Inc. ..................................         3.117        3/21/94      14,938,000
 50,000,000  CS First Boston, Inc. ..................         3.106        3/22/94      49,789,708
 25,000,000  CS First Boston, Inc. ..................         3.116        3/22/94      24,894,514
 18,750,000  CXC Inc. ...............................         3.089        2/18/94      18,722,729
 36,598,000  Eiger Capital Corporation...............         3.089        2/16/94      36,551,033
 25,000,000  Falcon Asset Securities.................         3.278        2/15/94      24,968,306
 48,175,000  Falcon Asset Securities.................         3.129        2/24/94      48,078,971
  7,000,000  General Electric Capital Corporation....         3.283        2/16/94       6,990,580
100,000,000  General Electric Capital Corporation....         3.188       10/21/94     100,000,000
 10,000,000  Goldman Sachs Group, L.P. ..............         3.335         3/1/94       9,974,489
 20,000,000  Goldman Sachs Group, L.P. ..............         3.281         3/2/94      19,947,960
  7,000,000  McKenna Triangle National Corporation...         3.258         2/1/94       7,000,000
 25,000,000  McKenna Triangle National Corporation...         3.087         2/9/94      24,982,889
 13,000,000  McKenna Triangle National Corporation...         3.324        2/14/94      12,984,649
 30,000,000  McKenna Triangle National Corporation...         3.272        7/18/94      29,551,883
 35,000,000  Merrill Lynch & Company, Inc. ..........         3.085         2/2/94      34,997,005
 50,000,000  Merrill Lynch & Company, Inc. ..........         3.089        2/14/94      49,944,389
 20,000,000  Merrill Lynch & Company, Inc. ..........         3.254        2/15/94      19,974,956
  8,000,000  Merrill Lynch & Company, Inc. ..........         3.324        2/15/94       7,989,827
  7,000,000  Merrill Lynch & Company, Inc. ..........         3.304        2/17/94       6,989,888
 20,000,000  Merrill Lynch & Company, Inc. ..........         3.183        5/27/94      19,798,750
 25,000,000  Merrill Lynch & Company, Inc. ..........         3.273        7/20/94      24,622,097
 50,000,000  Monte Rosa Capital Corporation..........         3.088        2/10/94      49,961,500
 25,457,000  Monte Rosa Capital Corporation..........         3.089        2/15/94      25,426,508
 10,033,000  Monte Rosa Capital Corporation..........         3.089        2/16/94      10,020,124
 30,000,000  Morgan Stanley Group Inc. ..............         3.408         2/7/94      29,983,251
 34,600,000  National Cooperative Services
              Corporation............................         3.097         2/9/94      34,576,241
 28,000,000  New Center Asset Trust..................         3.097         2/9/94      27,980,773
 25,000,000  New Center Asset Trust..................         3.378        3/10/94      24,913,924
 15,000,000  New Center Asset Trust..................         3.348        3/15/94      14,941,900
 35,000,000  New Center Asset Trust..................         3.366         4/5/94      34,796,038
 17,000,000  New Center Asset Trust..................         3.175        4/20/94      16,883,975
 20,000,000  Nissan Capital of America, Inc. ........         3.474        2/10/94      19,982,750
 25,000,000  Nissan Capital of America, Inc. ........         3.405        2/23/94      24,948,438
 30,000,000  Nissan Capital of America, Inc. ........         3.432        3/10/94      29,895,166
 20,000,000  Nissan Capital of America, Inc. ........         3.339        3/16/94      19,920,928
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       2
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                            Prime Money Market Fund
<TABLE>
<CAPTION>
                                                          INTEREST       MATURITY        VALUE
FACE VALUE                                                  RATE+          DATE        (NOTE 1)
- -----------                                            ---------------  -----------  -------------
<C>          <S>                                       <C>              <C>          <C>
             COMMERCIAL PAPER (CONTINUED)
$19,000,000  Nissan Capital of America, Inc. ........         3.354%       3/29/94   $  18,901,875
 11,000,000  Nissan Capital of America, Inc. ........         3.173        4/12/94      10,932,625
 20,000,000  Nissan Capital of America, Inc. ........         3.348        4/12/94      19,871,278
  4,000,000  Nissan Capital of America, Inc. ........         3.175        4/20/94       3,972,700
 50,000,000  Sheffield Receivables Corporation.......         3.090        2/18/94      49,927,278
 25,000,000  Sheffield Receivables Corporation.......         3.090        2/22/94      24,955,083
 26,000,000  The Student Loan Corporation............         3.111         3/1/94      25,937,311
 22,700,000  The Student Loan Corporation............         3.114        3/11/94      22,625,721
 15,000,000  The Student Loan Corporation............         3.116        3/18/94      14,941,875
 20,000,000  Transamerica Financial Corporation......         3.117        3/22/94      19,915,611
 10,490,000  Younkers Funding Corporation............         3.448        2/23/94      10,468,076
 19,440,000  Younkers Funding Corporation............         3.327         3/8/94      19,377,630
                                                                                     -------------
             TOTAL COMMERCIAL PAPER (COST $1,476,158,081)..........................  1,476,158,081
                                                                                     -------------
             ASSET-BACKED SECURITIES -- 1.7%
 40,000,000  Capital Auto Receivables Asset Trust,
              Trust 93-3.............................         3.300       11/15/94      39,990,801
 15,184,456  John Deere Owner Trust 93-B, Class
              A-1....................................         3.063       10/15/94      15,184,162
                                                                                     -------------
             TOTAL ASSET-BACKED SECURITIES (COST $55,174,963)......................     55,174,963
                                                                                     -------------
             BANK/CORPORATE NOTES -- 33.0%
 50,000,000  AT & T Capital Corporation, Variable
              Rate...................................         3.500        11/1/94      49,988,780
 25,000,000  AT & T Capital Corporation, Variable
              Rate...................................         3.500       11/15/94      24,978,395
 40,000,000  AT & T Capital Corporation, Variable
              Rate...................................         3.500        1/26/95      40,000,000
 10,000,000  Bank of New York (Delaware).............         3.600        6/30/94       9,999,913
 95,000,000  Bank of New York........................         3.250        7/25/94      95,000,000
  1,000,000  The Bear Stearns Companies Inc.,
              Variable Rate..........................         3.225        3/16/94       1,000,000
 50,000,000  The Bear Stearns Companies Inc.,
              Variable Rate..........................         3.500        10/5/94      50,000,000
  7,000,000  The Bear Stearns Companies Inc.,
              Variable Rate..........................         3.550       10/21/94       7,000,000
 25,000,000  The Bear Stearns Companies Inc.,
              Variable Rate..........................         3.425       12/16/94      25,000,000
 10,000,000  The Bear Stearns Companies Inc.,
              Variable Rate..........................         3.350        1/10/95      10,000,000
 20,000,000  The Bear Stearns Companies Inc.,
              Variable Rate..........................         3.650        1/11/95      20,000,000
 17,005,000  Commercial Credit Group Inc.............         6.250        1/15/95      17,399,945
  5,000,000  FCC National Bank, Delaware.............         3.810         6/3/94       5,000,000
 50,000,000  FCC National Bank, Delaware.............         3.250        7/26/94      50,000,000
 75,000,000  FCC National Bank, Delaware, Variable
              Rate...................................         3.290        1/11/95      75,000,000
  9,400,000  Ford Motor Credit Company...............         8.750        1/15/95       9,832,674
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       3
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                            Prime Money Market Fund
<TABLE>
<CAPTION>
                                                          INTEREST       MATURITY        VALUE
FACE VALUE                                                  RATE           DATE        (NOTE 1)
- -----------                                            ---------------  -----------  -------------
<C>          <S>                                       <C>              <C>          <C>
             BANK/CORPORATE NOTES (CONTINUED)
$50,000,000  General Electric Capital Corporation....         3.550%       1/19/95   $  49,968,658
 25,000,000  Goldman Sachs Group, L.P................         3.500        2/28/94      25,000,000
 25,000,000  Goldman Sachs Group, L.P................         3.500         3/8/94      25,000,000
 15,000,000  Goldman Sachs Group, L.P. ..............         3.700        3/21/94      15,007,675
 15,000,000  Goldman Sachs Group, L.P., Variable
              Rate...................................         3.375       10/12/94      15,000,000
 22,000,000  Goldman Sachs Group, L.P., Variable
              Rate...................................         3.640       12/21/94      22,000,000
  6,000,000  Goldman Sachs Group, L.P., Variable
              Rate...................................         3.570        1/18/95       6,000,000
 20,000,000  Household Finance Corporation, Variable
              Rate...................................         3.360        5/27/94      19,987,958
 12,000,000  Household Finance Corporation, Variable
              Rate...................................         3.550        11/1/94      11,995,422
 45,000,000  Household Finance Corporation, Variable
              Rate...................................         3.550        1/13/95      45,000,000
  9,675,000  Morgan Stanley Group Inc., Variable
              Rate...................................         3.375        7/29/94       9,686,515
 30,000,000  Morgan Stanley Group Inc., Variable
              Rate...................................         3.375        11/8/94      30,000,000
 10,000,000  NationsBank Corporation.................         3.650         6/7/94       9,994,242
  5,000,000  NationsBank Corporation.................         3.650        6/21/94       4,998,868
 50,000,000  Northern Trust Corporation..............         3.625       12/30/94      49,971,636
 10,000,000  Old Kent Bank & Trust, Variable Rate....         3.400        8/16/94       9,985,588
 25,000,000  Paccar Financial Corporation, Variable
              Rate...................................         3.500       11/15/94      24,978,395
 50,000,000  PHH Corporation, Inc., Variable Rate....         3.550         1/4/95      49,995,383
  3,000,000  Pittsburgh National Bank................         3.300        6/10/94       2,999,002
 50,000,000  SMM Trust 1993-D, Variable Rate**.......         3.330       10/28/94      50,000,000
 33,000,000  SMM Trust 1993-F, Variable Rate**.......         3.550       11/15/94      33,000,000
 20,000,000  Toyota Motor Credit Corporation.........         3.800        3/14/94      20,009,914
 10,000,000  Unilever Capital Corporation............         3.450        7/11/94      10,005,189
 30,000,000  Xerox Credit Corporation, Variable
              Rate...................................         3.130         8/1/94      29,986,692
                                                                                     -------------
             TOTAL BANK/CORPORATE NOTES (COST $1,060,770,844)......................  1,060,770,844
                                                                                     -------------
             CERTIFICATE OF DEPOSIT -- 0.4% (COST $15,001,083)
 15,000,000  Old Kent Bank & Trust...................         3.300        3/14/94      15,001,083
                                                                                     -------------
             TAXABLE MUNICIPALS -- 2.2%
 17,000,000  County of Cuyahoga, Ohio................         4.170       12/30/94      17,032,766
 53,000,000  The City of New York....................         3.460         3/9/94      53,000,000
                                                                                     -------------
             TOTAL TAXABLE MUNICIPALS (COST $70,032,766)...........................     70,032,766
                                                                                     -------------
             U.S. GOVERNMENT AGENCY NOTES -- 4.9%
 35,000,000  Federal Farm Credit Bank, Variable
              Rate...................................         3.200         9/7/94      34,977,612
 45,000,000  Federal National Mortgage Association,
              Variable Rate..........................         3.400       12/20/95      45,000,000
 40,000,000  Federal National Mortgage Association,
              Variable Rate..........................         3.600        10/7/96      40,000,000
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       4
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                            Prime Money Market Fund
<TABLE>
<CAPTION>
                                                          INTEREST       MATURITY        VALUE
FACE VALUE                                                  RATE           DATE        (NOTE 1)
- -----------                                            ---------------  -----------  -------------
<C>          <S>                                       <C>              <C>          <C>
             U.S. GOVERNMENT AGENCY NOTES (CONTINUED)
$ 5,000,000  Nebraska Higher Education Loan Program,
              (Letter of Credit: SLMA), Variable
              Rate...................................         3.270%       3/15/95   $   5,002,604
  8,000,000  Student Loan Marketing Association,
              Series CA, Variable Rate...............         3.370        1/21/98       8,044,470
 23,000,000  Student Loan Marketing Association,
              Series BZ, Variable Rate...............         3.190       11/24/97      23,000,000
  1,000,000  Student Loan Marketing Association,
              Variable Rate..........................         3.370       11/20/97       1,001,776
                                                                                     -------------
             TOTAL U.S. GOVERNMENT AGENCY NOTES (COST $157,026,462)................    157,026,462
                                                                                     -------------
             REPURCHASE AGREEMENTS -- 11.9%
             Agreement with First Boston Corporation dated 1/31/94 bearing 3.250%
              to be repurchased at $109,337,870 on 2/1/94, collateralized by
109,328,000   $149,936,588 FNMA mortgage-backed securities, with various maturities
              and interest rates (market value -- $111,603,868)....................    109,328,000
             Agreement with Kidder Peabody & Company dated 1/31/94 bearing 3.337%
              to be repurchased at $200,018,539 on 2/1/94, collateralized by
200,000,000   $386,567,764 FNMA/FHLMC mortgage-backed securities with various
              maturities and interest rates (market value -- $204,456,278).........    200,000,000
             Agreement with Merrill Lynch & Company dated 1/31/94 bearing 3.230% to
              be repurchased at $75,006,729 on 2/1/94, collateralized by
              $268,413,285 various mortgage-backed securities, with various
 75,000,000   maturities and interest rates (market value -- $76,107,834)..........
                                                                                        75,000,000
                                                                                     -------------
             TOTAL REPURCHASE AGREEMENTS (COST $384,328,000).......................    384,328,000
                                                                                     -------------
</TABLE>
 
<TABLE>
<S>                                                                     <C>       <C>
TOTAL INVESTMENTS (COST $3,218,492,199*).............................    100.0%    3,218,492,199
OTHER ASSETS AND LIABILITIES (NET)...................................     (0.0)       (1,472,960)
                                                                        ------    --------------
NET ASSETS...........................................................    100.0%   $3,217,019,239
                                                                        ------    --------------
                                                                        ------    --------------
<FN>
- ------------------------
 * Aggregate cost for Federal tax purposes.
**  Security exempt from registration  under Rule 144A of  the Securities Act of
   1933. These securities may be resold in transactions exempt from registration
   to qualified institutional buyers.
 + For Commercial Paper, the interest  rate represents annualized yield at  date
   of purchase.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       5
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS
January 31, 1994
 
                         Prime Value Money Market Fund
 
<TABLE>
<CAPTION>
                                                          INTEREST      MATURITY       VALUE
FACE VALUE                                                  RATE+         DATE       (NOTE 1)
- -----------                                            ---------------  ---------  -------------
<C>          <S>                                       <C>              <C>        <C>
             CERTIFICATES OF DEPOSIT -- 17.1%
             EURODOLLAR
$30,000,000  Bank of Tokyo...........................         3.310%       4/7/94  $  30,001,612
  7,000,000  Commerzbank AG..........................         3.720       6/24/94      7,006,049
 25,000,000  Dai Ichi Kangyo Bank....................         3.360       2/28/94     25,004,294
 10,000,000  Dai Ichi Kangyo Bank....................         3.340        3/7/94     10,000,446
  5,000,000  Industrial Bank of Japan................         3.320       4/15/94      5,000,045
 25,000,000  Industrial Bank of Japan................         3.290       4/19/94     24,998,743
 15,000,000  Norinchukin Bank........................         3.315       4/19/94     15,000,024
 25,000,000  Norinchukin Bank........................         3.340       7/26/94     25,001,195
 10,000,000  Sumitomo Bank...........................         3.380        3/1/94     10,000,582
 20,000,000  Sumitomo Bank...........................         3.330       4/15/94     19,997,633
                                                                                   -------------
                                                                                     172,010,623
                                                                                   -------------
             YANKEE
 16,000,000  Bank of Tokyo...........................         3.270        4/7/94     16,001,982
 10,000,000  Canadian Imperial Bank of Commerce......         3.500        5/2/94     10,000,000
  7,000,000  Credit Suisse...........................         3.730       6/10/94      7,000,000
 48,000,000  Dai Ichi Kangyo Bank....................         3.270       4/20/94     48,000,000
 25,000,000  Dai Ichi Kangyo Bank....................         3.300       4/22/94     25,000,397
  5,000,000  Fuji Bank...............................         3.310        2/8/94      4,999,936
 40,000,000  Fuji Bank...............................         3.250        3/7/94     40,004,072
 47,000,000  Fuji Bank...............................         3.180        4/8/94     47,000,785
100,000,000  Industrial Bank of Japan................         3.180       4/21/94    100,000,000
 10,000,000  Mitsubishi Bank.........................         3.340        2/1/94     10,000,000
 50,000,000  Mitsubishi Bank.........................         3.600      10/11/94     50,000,000
 30,000,000  Norinchukin Bank........................         3.310        4/7/94     30,001,075
 50,000,000  Sanwa Bank..............................         3.180       4/20/94     50,001,045
 30,000,000  Sumitomo Bank...........................         3.330       3/14/94     30,001,345
 20,000,000  Sumitomo Bank...........................         3.180       4/21/94     20,000,000
 25,000,000  Westpac Banking.........................         3.500       5/12/94     25,007,017
                                                                                   -------------
                                                                                     513,017,654
                                                                                   -------------
             TOTAL CERTIFICATES OF DEPOSIT (COST $685,028,277)...................    685,028,277
                                                                                   -------------
             COMMERCIAL PAPER -- 46.0%
 15,500,000  AGA Capital Inc. .......................         3.348       3/10/94     15,447,110
 22,500,000  AGA Capital Inc. .......................         3.176        5/3/94     22,320,844
 50,000,000  Alliance & Leicester Building Society...         3.106       3/21/94     49,794,000
 15,000,000  Alliance & Leicester Building Society...         3.304       7/21/94     14,769,792
 20,000,000  Bowater Incorporated....................         3.089       2/15/94     19,976,044
 29,317,000  Broadway Capital Corporation............         3.118       2/15/94     29,281,543
 15,000,000  Calcot Limited..........................         3.318        3/4/94     14,957,375
 10,000,000  Calcot Limited..........................         3.269       3/10/94      9,966,597
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       6
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                         Prime Value Money Market Fund
<TABLE>
<CAPTION>
                                                          INTEREST      MATURITY       VALUE
FACE VALUE                                                  RATE+         DATE       (NOTE 1)
- -----------                                            ---------------  ---------  -------------
<C>          <S>                                       <C>              <C>        <C>
             COMMERCIAL PAPER (CONTINUED)
$15,000,000  Calcot Limited..........................         3.322%      3/18/94  $  14,938,125
  5,000,000  Calcot Limited..........................         3.246       4/18/94      4,966,011
 10,000,000  Calcot Limited..........................         3.226       4/25/94      9,926,222
  7,000,000  Calcot Limited..........................         3.195       4/26/94      6,948,223
 10,000,000  Calcot Limited..........................         3.196       4/27/94      9,925,153
  5,000,000  Calcot Limited..........................         3.185       4/28/94      4,962,256
 59,850,000  Cariplo Finance, Inc. ..................         3.334       4/25/94     59,394,641
 20,000,000  Central Hispano North American Capital
              Corporation............................         3.408       2/10/94     19,983,250
 10,000,000  Central Hispano North American Capital
              Corporation............................         3.303       2/14/94      9,988,264
  5,000,000  Central Hispano North American Capital
              Corporation............................         3.333       2/22/94      4,990,434
 18,000,000  Countrywide Funding Corporation.........         3.093        2/9/94     17,987,640
 36,000,000  Countrywide Funding Corporation.........         3.142       2/23/94     35,931,140
 27,000,000  Countrywide Funding Corporation.........         3.142       2/24/94     26,946,008
 30,000,000  CSC Enterprises.........................         3.089       2/15/94     29,964,067
 16,000,000  CSC Enterprises.........................         3.159       2/22/94     15,970,600
 14,000,000  Daewoo International (America)
              Corporation............................         3.390       4/18/94     13,900,989
 30,000,000  Den Danske Corporation..................         3.294       3/11/94     29,897,400
 10,000,000  Denmark, Kingdom of.....................         3.379       2/17/94      9,985,224
 65,000,000  Diamond Asset Funding Corporation.......         3.112       2/25/94     64,865,667
 15,138,000  Diamond Asset Funding Corporation.......         3.450       2/28/94     15,099,171
 45,925,000  Falcon Asset Securitization
              Corporation............................         3.090       2/23/94     45,838,559
 10,000,000  General Electric Capital Corporation....         3.283       2/16/94      9,986,541
 17,000,000  General Motors Acceptance Corporation...         3.431        2/2/94     16,998,395
 40,000,000  General Motors Acceptance Corporation...         3.167       3/21/94     39,832,000
 20,000,000  General Motors Acceptance Corporation...         3.235       5/26/94     19,797,333
 40,000,000  Golden Managers Acceptance
              Corporation............................         3.138       2/16/94     39,947,833
 10,000,000  Goldman Sachs Group, L.P. ..............         3.408        2/9/94      9,992,556
 65,000,000  Matterhorn Capital Corporation..........         3.089       2/14/94     64,927,706
 25,000,000  Nationwide Building Society.............         3.308        4/7/94     24,851,945
 50,000,000  Nationwide Building Society.............         3.397       7/21/94     49,211,389
  5,000,000  New Center Asset Trust..................         3.315        2/4/94      4,998,625
 10,000,000  New Center Asset Trust..................         3.096        2/7/94      9,994,850
  2,000,000  New Center Asset Trust..................         3.097        2/9/94      1,998,627
 25,000,000  New Center Asset Trust..................         3.378       3/10/94     24,913,924
 35,000,000  New Center Asset Trust..................         3.348       3/15/94     34,864,433
 15,000,000  New Center Asset Trust..................         3.366        4/5/94     14,912,588
 23,000,000  New Center Asset Trust..................         3.175       4/20/94     22,843,025
 20,000,000  Nissan Capital of America, Inc. ........         3.279       4/13/94     19,871,806
 20,000,000  Nissan Capital of America, Inc. ........         3.369       4/14/94     19,866,800
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       7
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                         Prime Value Money Market Fund
<TABLE>
<CAPTION>
                                                          INTEREST      MATURITY       VALUE
FACE VALUE                                                  RATE+         DATE       (NOTE 1)
- -----------                                            ---------------  ---------  -------------
<C>          <S>                                       <C>              <C>        <C>
             COMMERCIAL PAPER (CONTINUED)
$10,000,000  Nordbanken, N.A. Inc....................         3.367%       2/1/94  $  10,000,000
 50,000,000  Nordbanken, N.A. Inc....................         3.366       7/19/94     49,227,667
 90,000,000  Nordbanken, N.A. Inc....................         3.325       7/25/94     88,577,550
  4,360,000  NYNEX Corporation.......................         3.166       3/11/94      4,345,503
 35,426,000  NYNEX Corporation.......................         3.304       3/28/94     35,248,476
 50,000,000  Paine Webber Group Inc. ................         3.272        4/4/94     49,720,139
 25,000,000  Postipankki U.S. Inc....................         3.445       2/15/94     24,966,750
  8,000,000  Postipankki U.S. Inc....................         3.407        3/1/94      7,979,155
 10,000,000  Postipankki U.S. Inc....................         3.345        3/8/94      9,968,014
 11,000,000  Postipankki U.S. Inc....................         3.356       3/14/94     10,958,658
 30,000,000  Postipankki U.S. Inc....................         3.317        4/5/94     29,827,275
 20,000,000  Postipankki U.S. Inc....................         3.287        4/6/94     19,884,089
 10,000,000  Postipankki U.S. Inc....................         3.230       5/11/94      9,912,000
 10,000,000  Postipankki U.S. Inc....................         3.311       6/10/94      9,882,825
 73,400,000  Postipankki U.S. Inc....................         3.398       7/15/94     72,283,179
 40,000,000  Postipankki U.S. Inc....................         3.356       7/21/94     39,376,667
 54,100,000  Sceptre International Limited...........         3.119       2/22/94     54,001,854
  3,000,000  SFC (USA) Inc. .........................         3.292       2/28/94      2,992,710
 15,539,000  Sierra Funding Corporation..............         3.317        3/3/94     15,496,268
 15,125,000  Source One Mortgage Services
              Corporation............................         3.335        2/1/94     15,125,000
 10,000,000  Spintab.................................         3.243       3/30/94      9,949,016
 50,000,000  Svenska Handelsbanken, Inc. ............         3.274       6/27/94     49,345,027
 13,900,000  Swedbank Inc. ..........................         3.340       2/28/94     13,865,598
 10,000,000  Swedbank Inc. ..........................         3.594       4/22/94      9,922,222
 50,000,000  Swedbank Inc. ..........................         3.336       7/26/94     49,202,778
 20,000,000  Swedish National Housing Finance
              Corporation............................         3.357        3/9/94     19,933,400
 15,315,000  Xerox Corporation.......................         3.089       2/18/94     15,292,725
 23,000,000  Xerox Credit Corporation................         3.089       2/15/94     22,972,451
 30,045,000  Xerox Credit Corporation................         3.089       2/18/94     30,001,300
                                                                                   -------------
             TOTAL COMMERCIAL PAPER (COST $1,838,991,021)........................  1,838,991,021
                                                                                   -------------
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       8
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                         Prime Value Money Market Fund
 
<TABLE>
<CAPTION>
                                                          INTEREST      MATURITY       VALUE
FACE VALUE                                                  RATE          DATE       (NOTE 1)
- -----------                                            ---------------  ---------  -------------
<C>          <S>                                       <C>              <C>        <C>
             ASSET-BACKED SECURITIES -- 0.2%
             (COST $9,997,700)
$10,000,000  Capital Auto Receivables Asset Trust,
              Trust 93-3, Class A-1..................         3.300%     11/15/94  $   9,997,700
                                                                                   -------------
             BANK/CORPORATE NOTES -- 23.9%
  2,000,000  Abbey National Treasury Services,
              Variable Rate..........................         3.400       2/18/94      1,999,961
  8,000,000  Abbey National Treasury Services,
              Variable Rate..........................         3.190       5/16/94      8,000,000
 25,000,000  Abbey National Treasury Services,
              Variable Rate..........................         3.500      10/28/94     24,972,332
 20,000,000  AT & T Capital Corporation, Variable
              Rate...................................         3.500       11/1/94     19,995,512
 40,000,000  AT & T Capital Corporation, Variable
              Rate...................................         3.500       1/26/95     40,000,000
  3,000,000  Bear Stearns Company, Inc., Variable
              Rate...................................         3.225       3/16/94      3,000,000
 50,000,000  Bear Stearns Company, Inc., Variable
              Rate...................................         3.500       10/5/94     50,000,000
 25,000,000  Bear Stearns Company, Inc., Variable
              Rate...................................         3.563      11/17/94     25,000,000
 20,000,000  Bear Stearns Company, Inc., Variable
              Rate...................................         3.750       12/1/94     20,000,000
 15,000,000  Bear Stearns Company, Inc., Variable
              Rate...................................         3.350       1/10/95     15,000,000
 40,000,000  Bear Stearns Company, Inc., Variable
              Rate...................................         3.650       1/11/95     40,000,000
  5,000,000  Chemical Banking Corporation, Variable
              Rate...................................         3.725        1/3/95      5,014,142
100,000,000  Comerica Bank (Detroit), Variable
              Rate...................................         3.520       1/31/95    100,000,000
 40,000,000  Concord Leasing Inc., Variable Rate.....         3.325       9/21/94     40,000,000
 35,000,000  FCC National Bank, Variable Rate........         3.290       1/11/95     35,000,000
  7,000,000  General Motors Acceptance Corporation...         6.250       2/25/94      7,012,656
  5,000,000  General Motors Acceptance Corporation...         8.050       5/25/94      5,065,633
 11,500,000  General Motors Acceptance Corporation...         6.050        6/1/94     11,584,906
  5,100,000  General Motors Acceptance Corporation...         9.300        6/1/94      5,188,157
  5,000,000  General Motors Acceptance Corporation...         6.000        6/9/94      5,035,360
  5,000,000  General Motors Acceptance Corporation...         5.550        7/5/94      5,037,295
  5,000,000  General Motors Acceptance Corporation...         5.150       7/11/94      5,025,110
  2,000,000  General Motors Acceptance Corporation...         8.650       7/13/94      2,040,798
  5,000,000  General Motors Acceptance Corporation...         5.000       7/18/94      5,025,988
  5,000,000  General Motors Acceptance Corporation...         8.300       7/18/94      5,097,123
  5,000,000  General Motors Acceptance Corporation...         8.500       7/18/94      5,109,358
  5,000,000  General Motors Acceptance Corporation...         8.250       7/26/94      5,105,811
  1,000,000  General Motors Acceptance Corporation...         8.100        8/8/94      1,021,121
  1,000,000  General Motors Acceptance Corporation...         8.150       9/15/94      1,024,944
  4,500,000  General Motors Acceptance Corporation...         8.700      10/20/94      4,654,957
  2,100,000  General Motors Acceptance Corporation...         5.900       11/4/94      2,129,511
  3,000,000  General Motors Acceptance Corporation...         8.600       12/8/94      3,116,207
 11,300,000  General Motors Acceptance Corporation...         6.350       1/17/95     11,531,956
  3,000,000  General Motors Acceptance Corporation...         9.000       1/23/95      3,137,540
  9,000,000  General Motors Acceptance Corporation...         6.000       1/25/95      9,159,225
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       9
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                         Prime Value Money Market Fund
<TABLE>
<CAPTION>
                                                          INTEREST      MATURITY       VALUE
FACE VALUE                                                  RATE          DATE       (NOTE 1)
- -----------                                            ---------------  ---------  -------------
<C>          <S>                                       <C>              <C>        <C>
             BANK/CORPORATE NOTES (CONTINUED)
$ 6,000,000  General Motors Acceptance Corporation...         8.950%      1/25/95  $   6,274,467
 20,000,000  General Motors Acceptance Corporation...         5.950       1/27/95     20,367,238
 25,000,000  Goldman Sachs Group.....................         3.500        3/8/94     25,000,000
 50,000,000  Goldman Sachs Group, Variable Rate......         3.250      10/12/94     50,000,000
 50,000,000  Goldman Sachs Group, Variable Rate......         3.375      12/14/94     50,000,000
 10,000,000  Goldman Sachs Group, Variable Rate......         3.640      12/21/94     10,000,000
 19,000,000  Goldman Sachs Group, Variable Rate......         3.570       1/18/95     19,000,000
 28,000,000  Heller Financial, Inc., Variable Rate...         3.825       10/3/94     28,060,650
 15,000,000  Household Finance Corporation, Variable
              Rate...................................         3.400       8/18/94     14,983,791
 45,000,000  Household Finance Corporation, Variable
              Rate...................................         3.550       1/13/95     45,000,000
 30,000,000  Household Finance Corporation, Variable
              Rate...................................         3.520       1/18/95     30,000,000
 50,000,000  Merrill Lynch & Company, Inc., Variable
              Rate...................................         3.600      12/20/94     50,000,000
  2,000,000  Morgan Bank (Delaware), Variable Rate...         3.175       3/21/94      2,000,000
 50,000,000  Morgan Stanley Group, Variable Rate.....         3.375       11/8/94     50,000,000
  5,000,000  NationsBank Corporation.................         3.650        6/7/94      4,998,546
  3,000,000  Pittsburgh National Bank................         3.300       6/10/94      2,999,002
  7,000,000  Pittsburgh National Bank................         3.550        7/8/94      7,000,954
 10,000,000  Pittsburgh National Bank................         3.550       7/15/94      9,996,921
                                                                                   -------------
             TOTAL BANK/CORPORATE NOTES (COST $955,767,172)......................    955,767,172
                                                                                   -------------
             INSURANCE CONTRACTS -- 1.9% (COST $75,000,000)
 75,000,000  Security Life of Denver Insurance
              Company, Variable Rate.................         3.350      12/31/94     75,000,000
                                                                                   -------------
             TAXABLE MUNICIPALS -- 0.7%
 17,000,000  Cuyahoga County, Ohio...................         4.170      12/30/94     17,032,767
 10,000,000  San Bernardino County, California.......         3.500       3/23/94     10,000,000
                                                                                   -------------
             TOTAL TAXABLE MUNICIPALS (COST $27,032,767).........................     27,032,767
                                                                                   -------------
             U.S. GOVERNMENT AGENCY NOTES -- 2.2%
 35,000,000  Federal Farm Credit Bank, Variable
              Rate...................................         3.200        9/7/94     34,977,612
 30,000,000  Federal National Mortgage Association,
              Variable Rate..........................         3.600       10/7/96     30,000,000
 10,000,000  Nebraska Higher Education Loan Program,
              (Letter of Credit: SLMA), Variable
              Rate...................................         3.270       3/15/95     10,005,181
             Student Loan Marketing Association
              (SLMA):
 10,000,000  Series CA, Variable Rate................         3.370       1/21/98     10,055,640
  3,000,000  Series BZ, Variable Rate................         3.370      11/20/97      3,005,325
                                                                                   -------------
             TOTAL U.S. GOVERNMENT AGENCY NOTES (COST $88,043,758)...............     88,043,758
                                                                                   -------------
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       10
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                         Prime Value Money Market Fund
<TABLE>
<CAPTION>
                                                                                       VALUE
FACE VALUE                                                                           (NOTE 1)
- -----------                                                                        -------------
<C>          <S>                                       <C>              <C>        <C>
             REPURCHASE AGREEMENTS -- 8.0%
             Agreement with First Boston Corporation bearing 3.250% dated 1/31/94
              to be repurchased at $68,194,156 on 2/1/94, collateralized by
              $71,708,625 FNMA mortgage-backed securities, with various
$68,188,000   maturities and interest rates (market value -- $69,544,724)........
                                                                                   $  68,188,000
             Agreement with Greenwich Capital Markets Inc. bearing 3.230% dated
              1/31/94 to be repurchased at $50,004,486 on 2/1/94, collateralized
              by $49,470,000 FHLMC mortgage-backed security, 7.000% due 1/1/24
 50,000,000
              (market value -- $50,742,862)......................................     50,000,000
             Agreement with Kidder Peabody & Company bearing 3.337% dated 1/31/94
              to be repurchased at $200,018,538 on 2/1/94, collateralized by
200,000,000   $202,680,181 FNMA/FHLMC mortgage-backed securities, with various
              maturities and interest rates (market value -- $202,680,181).......    200,000,000
                                                                                   -------------
             TOTAL REPURCHASE AGREEMENTS (COST $318,188,000).....................    318,188,000
                                                                                   -------------
</TABLE>
 
<TABLE>
<S>                                                                     <C>       <C>
TOTAL INVESTMENTS (COST $3,998,048,695*).............................    100.0%    3,998,048,695
OTHER ASSETS AND LIABILITIES (NET)...................................      0.0           649,215
                                                                        ------    --------------
NET ASSETS...........................................................    100.0%   $3,998,697,910
                                                                        ------    --------------
                                                                        ------    --------------
<FN>
- ------------------------
* Aggregate cost for Federal tax purposes.
+ For Certificates of Deposit and Commercial Paper, the interest rate represents
  annualized yield at date of purchase.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       11
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS
January 31, 1994
 
                    Government Obligations Money Market Fund
 
<TABLE>
<CAPTION>
                                                              INTEREST    MATURITY      VALUE
FACE VALUE                                                      RATE        DATE      (NOTE 1)
- ----------                                                   -----------  ---------  -----------
<C>         <S>                                              <C>          <C>        <C>
            U.S. GOVERNMENT AGENCY DISCOUNT NOTES -- 77.6%
            FEDERAL FARM CREDIT BANK (FFCB):
$5,000,000  FFCB...........................................        2.940%    2/4/94  $ 4,998,671
 5,000,000  FFCB...........................................        3.200     9/7/94    4,996,802
 2,000,000  FFCB...........................................        3.210    9/19/94    1,958,089
                                                                                     -----------
                                                                                      11,953,562
                                                                                     -----------
            FEDERAL HOME LOAN BANK (FHLB):
 5,000,000  FHLB...........................................        2.940    2/15/94    4,993,836
 7,000,000  FHLB...........................................        2.960     3/7/94    6,978,976
 5,000,000  FHLB...........................................        2.990    3/18/94    5,000,000
 4,390,000  FHLB...........................................        3.080    6/24/94    4,336,116
 5,000,000  FHLB, Variable Rate............................        3.350     2/3/97    5,000,000
                                                                                     -----------
                                                                                      26,308,928
                                                                                     -----------
            FEDERAL NATIONAL MORTGAGE ASSOCIATION (FNMA):
 1,695,000  FNMA...........................................        2.940     2/8/94    1,693,958
 5,000,000  FNMA...........................................        2.960    3/16/94    4,981,247
 5,000,000  FNMA...........................................        3.270    9/30/94    4,885,525
 5,000,000  FNMA, Variable Rate............................        3.270   10/25/94    4,878,453
 5,000,000  FNMA, Variable Rate............................        3.400   12/20/95    5,000,000
 5,000,000  FNMA, Variable Rate............................        3.600    10/7/96    5,000,000
                                                                                     -----------
                                                                                      26,439,183
                                                                                     -----------
            TENNESSEE VALLEY AUTHORITY (TVA):
 9,700,000  TVA............................................        2.940     2/7/94    9,694,859
 5,000,000  TVA............................................        2.940     2/8/94    4,996,909
10,000,000  TVA............................................        2.940    2/14/94    9,988,661
 5,000,000  TVA............................................        3.010     4/4/94    4,973,951
                                                                                     -----------
                                                                                      29,654,380
                                                                                     -----------
            TOTAL U.S. GOVERNMENT AGENCY DISCOUNT NOTES
             (COST $94,356,053)....................................................   94,356,053
                                                                                     -----------
            U.S. GOVERNMENT AGENCY OBLIGATIONS -- 7.8%
            STUDENT LOAN MARKETING ASSOCIATION (SLMA):
 5,000,000  Nebraska Higher Education Loan Program, (Letter
             of Credit: SLMA), Variable Rate...............        3.270    3/15/95    5,002,604
   450,000  SLMA, Series BZ, Variable Rate.................        3.370   11/20/97      450,800
 4,000,000  SLMA, Variable Rate............................        3.170   11/24/97    4,000,000
                                                                                     -----------
            TOTAL U.S. GOVERNMENT AGENCY OBLIGATIONS
             (COST $9,453,404).....................................................    9,453,404
                                                                                     -----------
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       12
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                    Government Obligations Money Market Fund
<TABLE>
<CAPTION>
                                                                                        VALUE
FACE VALUE                                                                            (NOTE 1)
- ----------                                                                           -----------
            REPURCHASE AGREEMENT -- 18.6% (COST $22,640,000)
<C>         <S>                                              <C>          <C>        <C>
$22,640,000 Agreement with First Boston Corporation bearing 3.250% dated 1/31/94 to
             be repurchased at $22,642,044 on 2/1/94, collateralized by $23,400,000
             FNMA mortgage-backed securities, with various maturities and interest
             rates (market value -- $23,514,837)...................................  $22,640,000
                                                                                     -----------
</TABLE>
 
<TABLE>
<S>                                                                     <C>       <C>
TOTAL INVESTMENTS (COST $126,449,457*)...............................    104.0%      126,449,457
OTHER ASSETS AND LIABILITIES (NET)...................................     (4.0)       (4,916,813)
                                                                        ------    --------------
NET ASSETS...........................................................    100.0%   $  121,532,644
                                                                        ------    --------------
                                                                        ------    --------------
<FN>
- ------------------------
 * Aggregate cost for Federal tax purposes.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       13
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS
January 31, 1994
 
                 100% Government Obligations Money Market Fund
 
<TABLE>
<CAPTION>
  FACE                                                         INTEREST    MATURITY     VALUE
  VALUE                                                          RATE        DATE      (NOTE 1)
- ---------                                                     -----------  ---------  ----------
<C>        <S>                                                <C>          <C>        <C>
           U.S. GOVERNMENT AGENCY DISCOUNT NOTES -- 101.8%
           FEDERAL FARM CREDIT BANK (FFCB):
$1,040,000 FFCB.............................................        2.940%    2/4/94  $1,039,724
2,000,000  FFCB.............................................        2.940     2/7/94   1,998,942
  480,000  FFCB.............................................        2.940     2/9/94     479,661
  460,000  FFCB.............................................        2.960     3/8/94     458,609
  670,000  FFCB.............................................        2.990    3/28/94     666,853
  425,000  FFCB.............................................        3.010     4/8/94     422,650
1,000,000  FFCB.............................................        3.010    4/14/94     993,560
  165,000  FFCB.............................................        3.020    4/18/94     163,874
1,120,000  FFCB.............................................        3.020     5/9/94   1,110,826
  100,000  FFCB.............................................        3.080    6/15/94      98,835
1,155,000  FFCB.............................................        3.080    6/30/94   1,140,181
  500,000  FFCB.............................................        3.150    7/21/94     492,539
5,000,000  FFCB.............................................        3.200     9/7/94   4,996,802
1,000,000  FFCB.............................................        3.210    9/19/94     979,045
                                                                                      ----------
                                                                                      15,042,101
                                                                                      ----------
           FEDERAL HOME LOAN BANK (FHLB):
1,800,000  FHLB.............................................        2.940     2/2/94   1,799,842
1,020,000  FHLB.............................................        2.940    2/11/94   1,019,102
1,450,000  FHLB.............................................        2.940    2/15/94   1,448,212
1,975,000  FHLB.............................................        2.960    2/24/94   1,971,028
2,030,000  FHLB.............................................        2.960    2/25/94   2,035,338
  685,000  FHLB.............................................        2.960     3/3/94     683,185
  540,000  FHLB.............................................        2.960     3/9/94     538,369
1,625,000  FHLB.............................................        2.960    3/15/94   1,619,066
1,920,000  FHLB.............................................        2.990    3/18/94   1,912,512
1,010,000  FHLB.............................................        3.010     4/8/94   1,004,131
1,215,000  FHLB.............................................        3.010    4/15/94   1,207,559
2,015,000  FHLB.............................................        3.020    4/20/94   2,001,815
1,805,000  FHLB.............................................        3.080     6/6/94   1,785,446
  610,000  FHLB.............................................        3.080    6/24/94     602,513
  445,000  FHLB.............................................        3.080    6/30/94     439,032
1,000,000  FHLB, Variable Rate..............................        3.350     2/3/97   1,000,000
                                                                                      ----------
                                                                                      21,067,150
                                                                                      ----------
           TENNESSEE VALLEY AUTHORITY (TVA):
  300,000  TVA..............................................        2.940     2/7/94     299,842
1,170,000  TVA..............................................        2.940     2/8/94   1,169,276
1,015,000  TVA..............................................        2.940    2/10/94   1,014,209
1,180,000  TVA..............................................        2.940    2/14/94   1,178,662
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       14
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                 100% Government Obligations Money Market Fund
<TABLE>
<CAPTION>
  FACE                                                         INTEREST    MATURITY     VALUE
  VALUE                                                          RATE        DATE      (NOTE 1)
- ---------                                                     -----------  ---------  ----------
<C>        <S>                                                <C>          <C>        <C>
           U.S. GOVERNMENT AGENCY DISCOUNT NOTES (CONTINUED)
           TENNESEE VALLEY AUTHORITY (TVA) (CONTINUED)
$ 525,000  TVA..............................................        2.960%   2/17/94  $  524,259
2,195,000  TVA..............................................        3.010     4/4/94   2,183,564
                                                                                      ----------
                                                                                       6,369,812
                                                                                      ----------
           TOTAL U.S. GOVERNMENT AGENCY DISCOUNT NOTES (COST $42,479,063)...........
                                                                                      42,479,063
                                                                                      ----------
           U.S. GOVERNMENT AGENCY OBLIGATIONS -- 0.4% (COST $150,267)
           STUDENT LOAN MARKETING ASSOCIATION (SLMA):
  150,000  SLMA, Series BZ, Variable Rate...................        3.370   11/20/97     150,267
                                                                                      ----------
TOTAL INVESTMENTS (COST $42,629,330*)................................    102.2%       42,629,330
OTHER ASSETS AND LIABILITIES (NET)...................................     (2.2)         (919,852)
                                                                        ------    --------------
NET ASSETS...........................................................    100.0%   $   41,709,478
                                                                        ------    --------------
                                                                        ------    --------------
<FN>
- ------------------------
 * Aggregate cost for Federal tax purposes.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       15
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS
January 31, 1994
 
                     Treasury Instruments Money Market Fund
 
<TABLE>
<CAPTION>
  FACE                                                                     MATURITY     VALUE
  VALUE                                                   INTEREST RATE+     DATE     (NOTE 1)
- ---------                                                 ---------------  ---------  ---------
<C>        <S>                                            <C>              <C>        <C>
           U.S. TREASURY OBLIGATIONS -- 82.8%
$1,000,000 U.S. Treasury Bills..........................         2.813%      2/10/94  $ 999,297
1,500,000  U.S. Treasury Bills..........................         3.059        6/9/94  1,483,867
                                                                                      ---------
           TOTAL U.S. TREASURY OBLIGATIONS
            (COST $2,483,164).......................................................  2,483,164
                                                                                      ---------
           REPURCHASE AGREEMENT -- 13.3% (COST $399,000)
  399,000  Agreement with First Boston Corporation dated 1/31/94 bearing 3.150% to
            be repurchased at $399,035 on 2/1/94, collateralized by $276,000 U.S.
            Treasury Bonds, 11.875% due 11/15/03 (market value -- $404,234).........    399,000
                                                                                      ---------
</TABLE>
 
<TABLE>
<S>                                                                     <C>       <C>
TOTAL INVESTMENTS (COST $2,882,164*).................................     96.1%        2,882,164
OTHER ASSETS AND LIABILITIES (NET)...................................      3.9           118,282
                                                                        ------    --------------
NET ASSETS...........................................................    100.0%   $    3,000,446
                                                                        ------    --------------
                                                                        ------    --------------
<FN>
- ------------------------
* Aggregate cost for Federal tax purposes.
+ For U.S. Treasury Obligations, the interest rate represents annualized yield
at date of purchase.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       16
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS
January 31, 1994
 
                   Treasury Instruments Money Market Fund II
 
<TABLE>
<CAPTION>
                                                                          MATURITY     VALUE
FACE VALUE                                               INTEREST RATE+     DATE      (NOTE 1)
- ----------                                               ---------------  ---------  ----------
<C>         <S>                                          <C>              <C>        <C>
            U.S. TREASURY OBLIGATIONS -- 65.7%
$5,000,000  U.S. Treasury Bills........................         3.221%       2/3/94  $4,999,120
 5,000,000  U.S. Treasury Bills........................         3.263        2/3/94   4,999,108
 1,000,000  U.S. Treasury Bills........................         3.268        2/3/94     999,822
 5,000,000  U.S. Treasury Bills........................         3.137       2/10/94   4,996,106
 1,000,000  U.S. Treasury Bills........................         3.232       2/10/94     999,208
 2,000,000  U.S. Treasury Bills........................         3.234       2/10/94   1,998,411
 5,000,000  U.S. Treasury Bills........................         3.126       2/17/94   4,993,111
 5,000,000  U.S. Treasury Bills........................         3.066       2/24/94   4,990,320
 5,000,000  U.S. Treasury Bills........................         3.144        3/3/94   4,987,104
 5,000,000  U.S. Treasury Bills........................         3.130        3/3/94   4,987,063
 5,000,000  U.S. Treasury Bills........................         3.147       3/10/94   4,983,992
 5,000,000  U.S. Treasury Bills........................         3.103       3/17/94   4,981,331
 7,000,000  U.S. Treasury Bills........................         3.093       3/24/94   6,969,803
 5,000,000  U.S. Treasury Bills........................         3.208        4/7/94   4,971,427
10,000,000  U.S. Treasury Bills........................         3.218       4/21/94   9,930,216
 5,000,000  U.S. Treasury Bills........................         3.309        5/5/94   4,957,892
 5,000,000  U.S. Treasury Bills........................         3.274       5/12/94   4,955,209
10,000,000  U.S. Treasury Bills........................         3.257       5/19/94   9,904,592
 5,000,000  U.S. Treasury Bills........................         3.315        6/2/94   4,945,214
 5,000,000  U.S. Treasury Bills........................         3.059        6/9/94   4,946,222
 5,000,000  U.S. Treasury Bills........................         3.147        7/7/94   4,932,833
10,000,000  U.S. Treasury Bills........................         3.147       7/14/94   9,859,639
10,000,000  U.S. Treasury Bills........................         3.159       7/21/94   9,853,140
                                                                                     ----------
            TOTAL U.S. TREASURY OBLIGATIONS
             (COST $125,140,883)...................................................  125,140,883
                                                                                     ----------
            REPURCHASE AGREEMENTS -- 34.5%
32,814,000  Agreement with First Boston Corporation dated 1/31/94 bearing 3.150% to
             be repurchased at $32,816,871 on 2/1/94, collateralized by $23,436,000
             U.S. Treasury Bonds, with various maturities and interest rates
             (market value -- $33,104,522).........................................  32,814,000
33,000,000  Agreement with Goldman Sachs & Company dated 1/31/94 bearing 3.150% to
             be repurchased at $33,002,888 on 2/1/94, collateralized by $40,811,000
             U.S. Treasury Bonds, Zero coupon due 2/15/98 (market value --
             $33,660,097)..........................................................  33,000,000
                                                                                     ----------
            TOTAL REPURCHASE AGREEMENTS
             (COST $65,814,000)....................................................  65,814,000
                                                                                     ----------
</TABLE>
 
<TABLE>
<S>                                                                     <C>       <C>
TOTAL INVESTMENTS (COST $190,954,883*)...............................    100.2%      190,954,883
OTHER ASSETS AND LIABILITIES (NET)...................................     (0.2)         (311,455)
                                                                        ------    --------------
NET ASSETS...........................................................    100.0%   $  190,643,428
                                                                        ------    --------------
                                                                        ------    --------------
<FN>
- ------------------------
* Aggregate cost for Federal tax purposes.
+ For U.S. Treasury Obligations, the interest rate represents annualized yield
at date of purchase.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       17
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS
January 31, 1994
 
                  100% Treasury Instruments Money Market Fund
 
<TABLE>
<CAPTION>
  FACE                                                                   MATURITY      VALUE
  VALUE                                                 INTEREST RATE+     DATE      (NOTE 1)
- ---------                                               ---------------  ---------  -----------
<C>        <S>                                          <C>              <C>        <C>
           U.S. TREASURY OBLIGATIONS -- 100.2%
$ 120,000  U.S. Treasury Bills........................         3.073%      2/10/94  $   119,909
  205,000  U.S. Treasury Bills........................         3.073       2/10/94      204,844
1,885,000  U.S. Treasury Bills........................         3.089       2/10/94    1,883,614
  350,000  U.S. Treasury Bills........................         3.126       2/10/94      349,729
4,070,000  U.S. Treasury Bills........................         3.170       2/10/94    4,066,825
  155,000  U.S. Treasury Bills........................         3.234       2/10/94      154,876
  435,000  U.S. Treasury Bills........................         3.073       2/17/94      434,415
  100,000  U.S. Treasury Bills........................         3.071       2/17/94       99,864
  530,000  U.S. Treasury Bills........................         3.144       2/17/94      529,272
4,725,000  U.S. Treasury Bills........................         3.121       2/17/94    4,718,490
4,000,000  U.S. Treasury Bills........................         3.126       2/17/94    3,994,489
1,000,000  U.S. Treasury Bills........................         3.156       2/17/94      998,618
  675,000  U.S. Treasury Bills........................         3.149       2/17/94      674,064
2,900,000  U.S. Treasury Bills........................         3.007       2/24/94    2,894,460
  285,000  U.S. Treasury Bills........................         3.054       2/24/94      284,437
  505,000  U.S. Treasury Bills........................         3.064       2/24/94      504,025
1,000,000  U.S. Treasury Bills........................         3.066       2/24/94      998,065
  420,000  U.S. Treasury Bills........................         3.083       2/24/94      419,185
  355,000  U.S. Treasury Bills........................         3.103       2/24/94      354,305
  410,000  U.S. Treasury Bills........................         3.108       2/24/94      409,198
5,000,000  U.S. Treasury Bills........................         3.112       2/24/94    4,990,145
  285,000  U.S. Treasury Bills........................         3.120       2/24/94      284,452
  360,000  U.S. Treasury Bills........................         3.123       2/24/94      359,287
1,400,000  U.S. Treasury Bills........................         3.061       3/03/94    1,396,476
5,000,000  U.S. Treasury Bills........................         3.130       3/03/94    4,987,063
3,000,000  U.S. Treasury Bills........................         3.144       3/03/94    2,992,212
2,295,000  U.S. Treasury Bills........................         3.047       3/10/94    2,287,865
  970,000  U.S. Treasury Bills........................         3.068       3/10/94      966,979
5,000,000  U.S. Treasury Bills........................         3.069       3/10/94    4,984,352
  370,000  U.S. Treasury Bills........................         3.098       3/10/94      368,836
4,550,000  U.S. Treasury Bills........................         3.147       3/10/94    4,535,433
4,060,000  U.S. Treasury Bills........................         3.048       3/17/94    4,044,989
  775,000  U.S. Treasury Bills........................         3.078       3/17/94      772,126
1,000,000  U.S. Treasury Bills........................         3.103       3/17/94      996,266
4,845,000  U.S. Treasury Bills........................         3.138       3/17/94    4,826,613
1,900,000  U.S. Treasury Bills........................         3.072       3/24/94    1,891,790
2,040,000  U.S. Treasury Bills........................         3.090        4/7/94    2,028,711
4,130,000  U.S. Treasury Bills........................         3.153        4/7/94    4,106,734
3,000,000  U.S. Treasury Bills........................         3.208        4/7/94    2,982,856
8,615,000  U.S. Treasury Bills........................         3.101       4/14/94    8,562,104
7,625,000  U.S. Treasury Bills........................         3.125       4/21/94    7,573,213
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       18
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                  100% Treasury Instruments Money Market Fund
<TABLE>
<CAPTION>
  FACE                                                                   MATURITY      VALUE
  VALUE                                                 INTEREST RATE+     DATE      (NOTE 1)
- ---------                                               ---------------  ---------  -----------
<C>        <S>                                          <C>              <C>        <C>
           U.S. TREASURY OBLIGATIONS (CONTINUED)
$2,570,000 U.S. Treasury Bills........................         3.141%      4/21/94  $ 2,552,460
9,550,000  U.S. Treasury Bills........................         3.166       4/28/94    9,478,593
5,000,000  U.S. Treasury Bills........................         3.189        5/5/94    4,959,313
2,400,000  U.S. Treasury Bills........................         3.295       5/12/94    2,378,367
  815,000  U.S. Treasury Bills........................         3.201       5/26/94      806,845
1,115,000  U.S. Treasury Bills........................         3.244        6/9/94    1,102,333
  605,000  U.S. Treasury Bills........................         3.066       6/16/94      598,126
1,415,000  U.S. Treasury Bills........................         3.272       6/16/94    1,397,914
  910,000  U.S. Treasury Bills........................         3.121       6/23/94      898,945
5,000,000  U.S. Treasury Bills........................         3.275       6/23/94    4,936,396
7,010,000  U.S. Treasury Bills........................         3.147        7/7/94    6,915,832
  390,000  U.S. Treasury Bills........................         3.159       7/21/94      384,272
1,340,000  U.S. Treasury Bills........................         3.168       7/21/94    1,320,257
                                                                                    -----------
</TABLE>
 
<TABLE>
<S>                                                                     <C>       <C>
TOTAL INVESTMENTS (COST $127,760,839*)...............................    100.2%      127,760,839
OTHER ASSETS AND LIABILITIES (NET)...................................     (0.2)         (297,704)
                                                                        ------    --------------
NET ASSETS...........................................................    100.0%   $  127,463,135
                                                                        ------    --------------
                                                                        ------    --------------
<FN>
- ------------------------
* Aggregate cost for Federal tax purposes.
+ For U.S. Treasury Obligations, the interest rate represents annualized yield
at date of purchase.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       19
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS
January 31, 1994
 
                           Tax-Free Money Market Fund
 
<TABLE>
<CAPTION>
                                                                       VALUE
FACE VALUE                                                           (NOTE 1)
- ----------                                                          -----------
<C>          <S>                                                    <C>
             MUNICIPAL BONDS AND NOTES -- 99.2%
             ALABAMA -- 2.0%
$1,100,000   Alabama Private College and University, Equipment
              and
              Capital Facilities Revenue, Series A,
              2.200% due 7/1/05++................................   $ 1,100,000
   100,000   Alabama Special Care Facilities Financing Authority
              Revenue,
              (Montgomery),
              2.200% due 4/1/15++................................       100,000
                                                                    -----------
                                                                      1,200,000
                                                                    -----------
             ARIZONA -- 1.2%
   100,000   Pima County, Arizona, Industrial Development
              Authority Revenue, (Barclays Bank, LOC),
              2.250% due 12/1/22+++..............................       100,000
   600,000   Tucson, Arizona, Airport Authority Revenue,
              3.100% due 6/1/94..................................       600,674
                                                                    -----------
                                                                        700,674
                                                                    -----------
             CALIFORNIA -- 10.4%
    25,000   California Health Facilities Financing Authority
              Revenue, (Industrial Bank, LOC),
              2.100% due 11/1/19+................................        25,000
   300,000   Chino, California, Tax and Revenue Anticipation
              Notes,
              3.250% due 7/29/94.................................       300,444
             Irvine Ranch, California, Water District Revenue:
 1,300,000   District 250, (Sumitomo Bank, LOC),
              2.150% due 4/1/33+.................................     1,300,000
 1,100,000   Series B, (Bank of America, LOC),
              2.150% due 10/1/09+................................     1,100,000
 1,000,000   San Bernardino County, California, General
              Obligation Bonds,
              3.250% due 7/29/94.................................     1,002,972
   200,000   Santa Clara County, California, Hospital Facilities
              Authority
              Lease Revenue, Series A, (National Westminster,
              LOC),
              1.900% due 8/1/15++................................       200,000
 2,200,000   Santa Clara County, California, Tax and Revenue
              Anticipation Notes,
              3.250% due 7/29/94.................................     2,207,077
   100,000   Southern California Rapid Transit Revenue, District
              A,
              3.000% due 2/22/94.................................       100,009
                                                                    -----------
                                                                      6,235,502
                                                                    -----------
             COLORADO -- 3.3%
 2,000,000   Colorado Housing Finance Authority Revenue,
              (Chemical Bank, LOC),
              2.200% due 5/1/97++................................     2,000,000
                                                                    -----------
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       20
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                           Tax-Free Money Market Fund
<TABLE>
<CAPTION>
                                                                       VALUE
FACE VALUE                                                           (NOTE 1)
- ----------                                                          -----------
<C>          <S>                                                    <C>
             MUNICIPAL BONDS AND NOTES (CONTINUED)
             DISTRICT OF COLUMBIA -- 1.0%
$  600,000   District of Columbia, Georgetown University Revenue
              Bonds, Series C,
              2.300% due 4/1/12++................................   $   600,000
                                                                    -----------
             FLORIDA -- 10.4%
   100,000   Bay County, Florida, Hospital Systems Revenue Bonds,
              (Bay Medical
              Center Project), (Citibank, LOC),
              2.250% due 4/1/18+.................................       100,000
 1,000,000   Florida State Board of Education, Capital Outlay,
              5.300% due 6/1/94..................................     1,008,615
 2,700,000   Florida State Board of Education, Tender Option
              Custody Receipts,
              Capital Outlay, Series 29B,
              2.400% due 6/1/10++................................     2,700,000
 1,000,000   Hialeah, Florida, Hospital Revenue, (Hialeah
              Hospital Incorporated Project),
              Pre-refunded,
              12.000% due 2/1/04++...............................     1,030,000
   400,000   Jacksonville, Florida, Health Facilities Revenue,
              2.150% due 4/1/15+.................................       400,000
   500,000   Orlando, Florida, Community Redevelopment Agency Tax
              Revenue,
              3.350% due 10/1/94.................................       502,270
   500,000   Plantation, Florida, Water and Sewer Revenue,
              8.400% due 3/1/94..................................       502,125
                                                                    -----------
                                                                      6,243,010
                                                                    -----------
             GEORGIA -- 8.2%
 3,400,000   Clayton County, Georgia, Multi-family Housing
              Authority Revenue,
              2.200% due 1/1/21++................................     3,400,000
 1,500,000   Georgia State Tender Option Custody Receipt Bonds,
              2.400% due 7/1/01++................................     1,500,000
                                                                    -----------
                                                                      4,900,000
                                                                    -----------
             HAWAII -- 3.6%
   650,000   Hawaii, General Obligation Bonds,
              2.400% due 11/1/98+................................       675,673
   250,000   Hawaii State Airport Systems Revenue,
              6.500% due 7/1/94..................................       253,530
 1,000,000   Hawaii State Tender Option Custody Receipt Bonds,
              2.400% due 7/1/01++................................     1,000,000
   200,000   Honolulu, Hawaii, City and County General Obligation
              Bonds,
              9.600% due 3/1/01++................................       203,556
                                                                    -----------
                                                                      2,132,759
                                                                    -----------
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       21
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                           Tax-Free Money Market Fund
<TABLE>
<CAPTION>
                                                                       VALUE
FACE VALUE                                                           (NOTE 1)
- ----------                                                          -----------
<C>          <S>                                                    <C>
             MUNICIPAL BONDS AND NOTES (CONTINUED)
             LOUISIANA -- 1.0%
$  100,000   East Baton Rouge Parish, Louisiana, Pollution
              Control Revenue,
              2.250% due 10/1/99++...............................   $   100,000
   500,000   Louisiana State, General Obligation Bonds,
              Pre-refunded,
              9.500% due 4/1/00++................................       515,278
                                                                    -----------
                                                                        615,278
                                                                    -----------
             MAINE -- 2.2%
   310,000   Hermon, Maine, General Obligation Bonds,
              5.300% due 11/1/94.................................       315,666
 1,000,000   Maine State, General Obligation Bonds,
              6.600% due 3/1/94..................................     1,003,004
                                                                    -----------
                                                                      1,318,670
                                                                    -----------
             MARYLAND -- 4.2%
             Maryland State Community Development Administration
              Revenue:
 1,500,000   2.700% due 4/1/17++.................................     1,500,000
 1,010,000   2.800% due 4/1/17++.................................     1,010,018
                                                                    -----------
                                                                      2,510,018
                                                                    -----------
             MASSACHUSETTS -- 3.3%
 2,000,000   Massachusetts State Housing Financing Authority,
              2.750% due 6/1/94..................................     2,000,000
                                                                    -----------
             MICHIGAN -- 0.0%
    20,000   Delta County, Michigan, Economic Development
              Corporation,
              General Obligation Bonds,
              2.300% due 12/1/23+................................        20,000
                                                                    -----------
             MINNESOTA -- 0.2%
   100,000   Golden Valley, Minnesota, Industrial Control
              Development
              Revenue,
              2.300% due 9/1/14++................................       100,000
                                                                    -----------
             NEBRASKA -- 1.7%
 1,005,000   Nebraska Educational Facilities, Equipment and
              Improvement
              Revenue,
              2.200% due 12/1/00++...............................     1,005,000
                                                                    -----------
             NEW HAMPSHIRE -- 1.3%
   800,000   New Hampshire Higher Education and Health Authority
              Revenue,
              (Mary Hitchock Project), (Sakura Bank, LOC),
              2.150% due 7/1/21++................................       800,000
                                                                    -----------
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       22
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                           Tax-Free Money Market Fund
<TABLE>
<CAPTION>
                                                                       VALUE
FACE VALUE                                                           (NOTE 1)
- ----------                                                          -----------
<C>          <S>                                                    <C>
             MUNICIPAL BONDS AND NOTES (CONTINUED)
             NEW YORK -- 15.9%
             New York, New York, General Obligation Bonds:
$  500,000   Series B,
             2.050% due 9/1/95+..................................   $   500,000
 2,300,000   Sub-Series B-4, (Union Bank of Switzerland, LOC),
             2.050% due 8/15/21+.................................     2,300,000
   700,000   Sub-Series E5, (Sumitomo Bank, LOC),
              2.250% due 8/1/21+.................................       700,000
   500,000   Sub-Series E6,
             2.250% due 8/1/10+..................................       500,000
             (Sumitomo Bank, LOC):
   200,000   2.250% due 8/1/17+..................................       200,000
   800,000   2.250% due 8/1/18+..................................       800,000
   500,000   New York, New York, Revenue Anticipation Notes,
              Series B,
              3.500% due 6/30/94.................................       501,403
 1,000,000   New York, New York, Tax Anticipation Notes,
              3.125% due 4/8/94..................................     1,000,518
 3,000,000   New York State Local Assistance Revenue, Pacific
              Telephone
              Discount Notes, Series A, (Credit Suisse, Union
              Bank of Switzerland, LOC),
              2.050% due 4/1/22++................................     3,000,000
                                                                    -----------
                                                                      9,501,921
                                                                    -----------
             NORTH CAROLINA -- 3.7%
 1,000,000   North Carolina Eastern Municipal Power Authority
              Revenue, Pre-refunded,
              10.625% due 1/1/15++...............................     1,101,315
 1,000,000   North Carolina Municipal Power Authority,
              Pre-refunded,
              9.375% due 1/1/05++................................     1,089,583
                                                                    -----------
                                                                      2,190,898
                                                                    -----------
             OHIO -- 4.4%
   100,000   Cincinnati, Ohio, Student Loan Funding Corporation
              Revenue, (Fuji Bank, LOC),
              2.550% due 12/29/98++..............................       100,000
 2,500,000   Ohio State Water Development Authority Revenue,
              (Wachovia Bank, LOC),
              2.100% due 5/1/07++................................     2,500,000
                                                                    -----------
                                                                      2,600,000
                                                                    -----------
             OREGON -- 1.2%
   700,000   Klamath Falls, Oregon, Electric Revenue, (Salt Caves
              Hydroelectric Project),
              4.750% due 5/1/94..................................       703,131
                                                                    -----------
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       23
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                           Tax-Free Money Market Fund
<TABLE>
<CAPTION>
                                                                       VALUE
FACE VALUE                                                           (NOTE 1)
- ----------                                                          -----------
<C>          <S>                                                    <C>
             MUNICIPAL BONDS AND NOTES (CONTINUED)
             RHODE ISLAND -- 0.9%
$  530,000   Central Falls, Rhode Island, General Obligation
              Bonds,
              2.700% due 11/15/94................................   $   530,000
                                                                    -----------
             TENNESSEE -- 4.4%
 1,700,000   Chattanooga, Tennessee, Industrial Development
              Revenue,
              (ABN Amro Bank, LOC),
              2.200% due 12/15/12++..............................     1,700,000
   100,000   Metropolitan Nashville and Davison County,
              Tennessee,
              Health and Education Authority Revenue,
              2.20% due 6/1/15+..................................       100,000
   800,000   Nashville Metropolitan Airport Authority Revenue,
              2.150% due 7/1/19+.................................       800,000
                                                                    -----------
                                                                      2,600,000
                                                                    -----------
             TEXAS -- 8.1%
   250,000   Harris County, Texas, District Hospital Mortgage
              Revenue,
              6.700% due 2/15/94.................................       250,344
             Harris County, Texas, Health Facilities Authority
              Revenue:
 1,000,000   Series C, (Morgan Guaranty, LOC),
              2.100% due 2/15/16+................................     1,000,000
 1,000,000   Series D, (Morgan Guaranty, LOC),
              2.100% due 2/15/16+................................     1,000,000
 1,800,000   Houston Texas, Public Improvement Revenue, Series A,
              2.200% due 5/1/12++................................     1,800,000
   300,000   North Central, Texas, Health Facilities Corporation
              Revenue,
              (Presbyterian Hospital), Series D, (NationsBank,
              LOC),
              2.200% due 12/1/15+................................       300,000
   500,000   Texas State, Tax and Revenue Anticipation Notes,
              3.250% due 8/31/94.................................       501,554
                                                                    -----------
                                                                      4,851,898
                                                                    -----------
             UTAH -- 0.8%
   460,000   Utah State Building Ownership Authority Revenue,
              4.500% due 1/1/95..................................       464,495
                                                                    -----------
             VERMONT -- 1.7%
 1,000,000   Vermont State, General Obligation Bonds, Series A,
              7.500% due 2/1/94..................................     1,000,000
                                                                    -----------
             VIRGINIA -- 2.7%
   100,000   Fairfax County, Virginia, Industrial Control
              Revenue,
              (Dai Ichi, Kangyo Bank, LOC),
              2.300% due 1/15/22++...............................       100,000
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       24
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                           Tax-Free Money Market Fund
<TABLE>
<CAPTION>
                                                                       VALUE
FACE VALUE                                                           (NOTE 1)
- ----------                                                          -----------
<C>          <S>                                                    <C>
             MUNICIPAL BONDS AND NOTES (CONTINUED)
             VIRGINIA (CONTINUED)
$1,500,000   Virginia State Housing Development Authority
              Revenue,
              2.500% due 7/1/17++................................   $ 1,500,000
                                                                    -----------
                                                                      1,600,000
                                                                    -----------
             WEST VIRGINIA -- 0.6%
   320,000   Clarksburg West, Virginia Water Revenue,
              7.875% due 11/15/19++..............................       337,620
                                                                    -----------
             WISCONSIN -- 0.8%
   500,000   Wisconsin State, General Obligation Notes,
              3.250% due 6/15/94.................................       500,938
                                                                    -----------
</TABLE>
 
<TABLE>
<S>                                                        <C>      <C>
TOTAL INVESTMENTS (COST $59,261,812*)...................    99.2 %   59,261,812
OTHER ASSETS AND LIABILITIES (NET)......................     0.8 %      472,974
                                                           ------   -----------
NET ASSETS..............................................   100.0 %  $59,734,786
                                                           ------   -----------
                                                           ------   -----------
<FN>
- ------------------------
 * Aggregate cost for Federal tax purposes.
 + Variable rate demand notes are payable upon not more than one business day's
notice.
  The interest rate shown reflects the rate currently in effect.
++ Variable rate demand notes are payable upon not more than seven business
day's notice.
  The interest rate shown reflects the rate currently in effect.
LOC -- Instruments supported by bank letter of credit.
</TABLE>
 
                SUMMARY OF MUNICIPAL BONDS BY COMBINED RATINGS#
 
<TABLE>
<CAPTION>
                                                                           PERCENT
                 MOODY'S            OR            STANDARD                  OF
                                                  & POOR'S                 VALUE
              <S>                         <C>                              <C>
              Aaa                                AAA                        13.9%
              Aa                                 AA                          6.2%
              MIG1/VMIG1/P1               A-1/A-1+/SP1/SP1+                 79.9%
                                                                           -----
                                                                           100.0%
                                                                           -----
                                                                           -----
              # Bonds are not necessarily rated the same by both services.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       25
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS
January 31, 1994
 
                          Municipal Money Market Fund
 
<TABLE>
<CAPTION>
                                                                                   VALUE
FACE VALUE                                                                       (NOTE 1)
- ----------                                                                      -----------
<C>         <S>                                                                 <C>
            MUNICIPAL BONDS AND NOTES -- 100.2%
            ALABAMA -- 0.8%
$1,000,000  Birmingham, Alabama, Medical Clinic Board Revenue,
             (Morgan Bank of Delaware, LOC),
             2.100% due 12/1/26+..............................................  $ 1,000,000
 1,900,000  Stevenson, Alabama, Industrial Development Authority,
             Environment and Pollution Control Revenue,
             (Credit Suisse, LOC),
             2.200% due 11/1/16+..............................................    1,900,000
                                                                                -----------
                                                                                  2,900,000
                                                                                -----------
            ALASKA -- 0.3%
 1,000,000  Alaska Industrial Development Authority Revenue, Series A,
             5.800% due 4/1/94................................................    1,004,720
                                                                                -----------
            ARIZONA -- 3.0%
 5,200,000  Arizona Educational Loan Marketing Corporation Revenue,
             2.300% due 12/1/02+++............................................    5,200,000
 5,310,000  Phoenix, Arizona, Industrial Development Authority Revenue,
             (First Interstate Bank, LOC),
             2.550% due 2/1/24+++.............................................    5,310,000
                                                                                -----------
                                                                                 10,510,000
                                                                                -----------
            CALIFORNIA -- 10.5%
            Alameda County, California, Industrial Development Authority
             Revenue:
   700,000  Series II,
             (Sumitoma Trust, LOC),
             2.900% due 7/1/08+++.............................................      700,000
 3,300,000  Series III,
             2.900% due 7/1/08+++.............................................    3,300,000
 2,150,000  Chino, California, Tax and Revenue Anticipation Notes,
             3.250% due 7/29/94...............................................    2,152,573
 1,500,000  Huntington Beach, California, Tax and Revenue Anticipation Notes,
             3.250% due 7/29/94...............................................    1,501,857
            Irvine Ranch, California, Water District Revenue,
             (Sumitomo Bank, LOC):
 1,900,000  2.100% due 10/1/05+...............................................    1,900,000
 3,000,000  2.100% due 10/1/10+...............................................    3,000,000
 2,300,000  Los Angeles, California, Regional Airports Revenue, Series E,
             (Societe Generale, LOC),
             2.200% due 12/1/24+..............................................    2,300,000
 2,600,000  Marin County, California, Tax and Revenue Anticipation Notes,
             3.000% due 7/6/94................................................    2,599,902
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       26
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                          Municipal Money Market Fund
<TABLE>
<CAPTION>
                                                                                   VALUE
FACE VALUE                                                                       (NOTE 1)
- ----------                                                                      -----------
<C>         <S>                                                                 <C>
            MUNICIPAL BONDS AND NOTES (CONTINUED)
            CALIFORNIA -- (CONTINUED)
$1,000,000  Metropolitan Southern Water District Revenue,
             2.300% due 3/1/09+++.............................................  $ 1,000,000
 1,800,000  Monterey Peninsula, California, Water Management District,
             Certificates of Participation, (Wastewater Reclamation Project),
             (Sumitomo Bank, LOC),
             2.250% due 7/1/22+++.............................................    1,800,000
 3,800,000  Orange County, California, Water District, Certificates
             of Participation, (Project B), (National Westminster, LOC),
             2.100% due 8/18/15+..............................................    3,800,000
 4,400,000  Rancho Santiago, California, Community College, Tax and
             Revenue Anticipation Notes,
             3.150% due 11/16/94..............................................    4,416,857
 2,190,000  Riverside County, California, Board of Education, Tax and
             Revenue Anticipation Notes,
             3.250% due 7/15/94...............................................    2,194,455
 1,080,000  Sacramento, California, Port District Lease Revenue, California
             Free Trade, (Tokai Bank, LOC),
             3.25% due 11/1/22++..............................................    1,080,000
 3,650,000  Sacramento County, California, Tax and Revenue
             Anticipation Notes,
             3.000% due 7/29/94...............................................    3,653,889
   500,000  San Diego, California, Industrial Development Authority
             Revenue, Series A, (Westpac Bank, LOC),
             2.300% due 10/1/07+++............................................      500,000
 1,000,000  Southern California Rapid Transit Revenue, District A,
             3.000% due 2/22/94...............................................    1,000,092
                                                                                -----------
                                                                                 36,899,625
                                                                                -----------
            COLORADO -- 2.5%
 1,000,000  Arapahoe County, Colorado, School District #5, Series D,
             9.750% due 12/15/01++............................................    1,069,587
 5,000,000  Colorado Multi-family Housing Finance Authority Revenue,
             (Dai Ichi Kangyo, LOC),
             2.200% due 12/1/05+++............................................    5,000,000
 2,500,000  Colorado Student Loan Obligations Authority Revenue, Series A,
             (Sumitomo Bank, LOC),
             2.800% due 3/1/24+++.............................................    2,500,000
                                                                                -----------
                                                                                  8,569,587
                                                                                -----------
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       27
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                          Municipal Money Market Fund
<TABLE>
<CAPTION>
                                                                                   VALUE
FACE VALUE                                                                       (NOTE 1)
- ----------                                                                      -----------
<C>         <S>                                                                 <C>
            MUNICIPAL BONDS AND NOTES (CONTINUED)
            CONNECTICUT -- 0.3%
$1,000,000  Connecticut State Housing Finance Authority Revenue,
             2.900% due 11/15/94++............................................  $ 1,000,000
                                                                                -----------
            DELAWARE -- 0.1%
   300,000  Delaware State Economic Development Facilities Authority Revenue,
             2.200% due 10/1/17+..............................................      300,000
                                                                                -----------
            FLORIDA -- 2.0%
 4,500,000  Dade County, Florida, Solid Waste Industrial Development
             Authority Revenue, Series A, (Banque Paribus, LOC),
             2.750% due 12/1/13+++............................................    4,500,000
   200,000  Jacksonville, Florida, Health Facilities Authority Revenue,
             2.150% due 4/1/15+...............................................      200,000
   100,000  Marion County, Florida, Industrial Development Authority Revenue,
             (Bankers Trust, LOC),
             2.150% due 7/1/04+...............................................      100,000
   100,000  Sarasota County, Florida, Health Facilities Revenue,
             2.400% due 12/1/19+++............................................      100,000
 2,200,000  St. Lucie County, Florida, Pollution Control Revenue,
             (Florida Power & Light, LOC),
             2.300% due 5/1/27+++.............................................    2,200,000
                                                                                -----------
                                                                                  7,100,000
                                                                                -----------
            GEORGIA -- 3.4%
   850,000  Cobb County, Georgia, General Obligation Bonds,
             3.600% due 1/1/95................................................      854,916
 1,000,000  Georgia Municipal Electric Power Authority, Series A,
             Pre-refunded,
             10.500% due 1/1/95...............................................    1,089,250
            Georgia State Residential Finance Authority Revenue:
 3,715,000  2.850% due 12/1/16++..............................................    3,715,594
 2,870,000  Series B,
             2.580% due 12/1/20++.............................................    2,870,459
 2,400,000  Savannah, Georgia, Economic Development Authority Revenue,
             (Bank of Tokyo, LOC),
             2.400% due 10/1/99+++............................................    2,400,000
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       28
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                          Municipal Money Market Fund
<TABLE>
<CAPTION>
                                                                                   VALUE
FACE VALUE                                                                       (NOTE 1)
- ----------                                                                      -----------
<C>         <S>                                                                 <C>
            MUNICIPAL BONDS AND NOTES (CONTINUED)
            GEORGIA -- (CONTINUED)
$1,100,000  Savannah, Georgia, Port Authority Revenue, Pier District,
             (Banque Paribus, LOC),
             2.400% due 12/1/26+++............................................  $ 1,100,000
                                                                                -----------
                                                                                 12,030,219
                                                                                -----------
            HAWAII -- 1.0%
 3,500,000  Hawaii State Tender Option Custody Receipt,
             2.400% due 7/1/01+++.............................................    3,500,000
                                                                                -----------
            ILLINOIS -- 2.3%
 2,000,000  Chicago, Illinois, Public Building Commission Revenue,
             6.800% due 1/1/95................................................    2,070,521
            Illinois Development Financing Authority Revenue,
             (Industrial Bank, LOC),
 1,000,000  2.575% due 4/1/18+++..............................................    1,000,000
 1,000,000  2.500% due 11/1/23+++.............................................    1,000,000
 2,000,000  Pollution Control Revenue, Series D, (Mitsubishi Bank, LOC),
             2.150% due 3/1/17+++.............................................    2,000,000
 2,000,000  Illinois State, General Obligation Bonds,
             3.500% due 6/15/94...............................................    2,004,298
                                                                                -----------
                                                                                  8,074,819
                                                                                -----------
            INDIANA -- 3.2%
            Indiana State Employment Development Commission Revenue:
   750,000  2.500% due 1/1/13+++..............................................      750,000
 1,800,000  2.500% due 1/1/14+++..............................................    1,800,000
 1,000,000  Indianapolis, Indiana, Industrial Economic Development Revenue,
             (Asahi Bank, LOC),
             3.200% due 9/1/95+++.............................................    1,000,000
 6,500,000  Ossian, Indiana, Economic Development Revenue, (Harris Trust,
             LOC),
             2.500% due 12/1/23+++............................................    6,500,000
 1,050,000  Princeton, Indiana, Industrial Development Revenue,
             (Mitsubishi Bank, LOC),
             2.750% due 4/30/17+++............................................    1,050,000
                                                                                -----------
                                                                                 11,100,000
                                                                                -----------
            KENTUCKY -- 4.8%
 1,500,000  Kentucky Higher Education Student Loan Revenue, Series E,
             (Sumitomo Bank, LOC),
             2.750% due 12/1/11+++............................................    1,500,000
 1,000,000  Kentucky Housing Corporation Revenue, Series D,
             2.750% due 1/1/22++..............................................    1,000,000
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       29
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                          Municipal Money Market Fund
<TABLE>
<CAPTION>
                                                                                   VALUE
FACE VALUE                                                                       (NOTE 1)
- ----------                                                                      -----------
<C>         <S>                                                                 <C>
            MUNICIPAL BONDS AND NOTES (CONTINUED)
            KENTUCKY -- (CONTINUED)
$6,000,000  Kentucky Pollution Abatement and Water Resources Finance Authority
             Revenue,
             2.350% due 8/13/06+..............................................  $ 6,000,000
 5,100,000  Louisville, Kentucky, Airport Lease Revenue, Series B,
             2.450% due 2/1/19+++.............................................    5,100,000
 3,100,000  Walton, Kentucky, Industrial Development Revenue,
             (Clarion Mortgage Company of America), (Asahi Bank, LOC),
             3.300% due 11/1/96+++............................................    3,100,000
                                                                                -----------
                                                                                 16,700,000
                                                                                -----------
            LOUISIANA -- 3.7%
            Louisiana Housing Finance Authority Revenue, (Sumitomo Bank, LOC),
 3,100,000  3.500% due 12/1/25+++.............................................    3,100,000
 2,865,000  3.500% due 1/1/26+++..............................................    2,865,000
 1,950,000  Louisiana State Offshore Terminal and Deepwater Port Authority
             Revenue,
             (1st Stage),
             2.300% due 9/1/06+...............................................    1,950,000
 3,100,000  Louisiana State Recovery District Sales Tax Revenue,
             2.200% due 7/1/97+...............................................    3,100,000
 2,000,000  New Orleans, Louisiana, Aviation Board Revenue, Series B,
             2.250% due 8/1/16+++.............................................    2,000,000
                                                                                -----------
                                                                                 13,015,000
                                                                                -----------
            MARYLAND -- 3.9%
            Maryland Community Development Administration Revenue:
 2,500,000  2.700% due 4/1/17++...............................................    2,500,000
 2,330,000  2.900% due 4/1/17++...............................................    2,330,060
 4,800,000  2.500% due 4/1/27+++..............................................    4,800,000
 1,050,000  Maryland State Energy Financing Project Revenue, (Credit Suisse,
             LOC),
             2.350% due 7/1/11+...............................................    1,050,000
            Montgomery County, Maryland, Housing Opportunities Authority
             Revenue:
 1,100,000  2.500% due 2/1/26+++..............................................    1,100,000
 2,000,000  2.650% due 7/1/35++...............................................    2,000,000
                                                                                -----------
                                                                                 13,780,060
                                                                                -----------
            MASSACHUSETTS -- 0.9%
 1,000,000  Massachusetts State General Obligation Bonds, Series E,
             2.150% due 12/1/97+++............................................    1,000,000
 2,000,000  Massachusetts State Housing Finance Agency Revenue,
             2.750% due 6/1/17+++.............................................    2,000,000
                                                                                -----------
                                                                                  3,000,000
                                                                                -----------
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       30
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                          Municipal Money Market Fund
<TABLE>
<CAPTION>
                                                                                   VALUE
FACE VALUE                                                                       (NOTE 1)
- ----------                                                                      -----------
<C>         <S>                                                                 <C>
            MUNICIPAL BONDS AND NOTES (CONTINUED)
            MICHIGAN -- 1.5%
$1,500,000  Detroit, Michigan, General Obligation Notes, (Comerica, LOC),
             3.000% due 7/1/94................................................  $ 1,501,811
   800,000  Michigan Higher Education Facilities Authority Revenue, (Comerica,
             LOC),
             2.050% due 7/1/95+++.............................................      800,000
 2,000,000  Michigan Municipal Bond Authority Revenue Notes, (Comerica, LOC),
             3.000% due 5/5/94................................................    2,001,315
 1,100,000  Michigan State Strategic Funding -- Limited Obligation Revenue
             (Hi-Lex Controls Incorporated), (Bank of Tokyo, LOC),
             2.400% due 7/1/99+++.............................................    1,100,000
                                                                                -----------
                                                                                  5,403,126
                                                                                -----------
            MINNESOTA -- 0.9%
 3,000,000  Minnesota State, General Obligation Bonds,
             2.400% due 8/1/07+++.............................................    3,000,000
                                                                                -----------
            MISSISSIPPI -- 0.1%
   395,000  Mississippi Business Financing Corporation, Industrial Development
             Revenue, (Air Cruisers Project), Series C, (Credit Commerciale,
             LOC),
             2.550% due 10/1/04+++............................................      395,000
                                                                                -----------
            MISSOURI -- 3.4%
10,000,000  Missouri Higher Education Loan Authority Revenue,
             2.500% due 2/15/08+++............................................   10,000,000
 2,000,000  West Plains, Missouri, Industrial Development Authority Revenue,
             (Bank of Tokyo, LOC),
             2.350% due 11/1/10++.............................................    2,000,000
                                                                                -----------
                                                                                 12,000,000
                                                                                -----------
            NEVADA -- 1.1%
            Nevada State Department Commission, Industrial Development
             Revenue: (Credit Commerciale, LOC),
 3,600,000  2.500% due 4/1/09+++..............................................    3,600,000
            (Kyowa Bank, LOC),
   200,000  Series A, 2.600% due 12/1/09+++...................................      200,000
                                                                                -----------
                                                                                  3,800,000
                                                                                -----------
            NEW MEXICO -- 1.1%
   500,000  Farmington, New Mexico, Pollution Control Revenue, Series 85-A,
             (Union Bank of Switzerland, LOC),
             2.800% due 2/1/15++..............................................      500,000
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       31
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                          Municipal Money Market Fund
<TABLE>
<CAPTION>
                                                                                   VALUE
FACE VALUE                                                                       (NOTE 1)
- ----------                                                                      -----------
<C>         <S>                                                                 <C>
            MUNICIPAL BONDS AND NOTES (CONTINUED)
            NEW MEXICO -- (CONTINUED)
            New Mexico Educational Assistance Foundation Revenue:
$1,450,000  3.200% due 12/1/94................................................  $ 1,456,482
 2,000,000  4.300% due 12/1/94................................................    2,026,001
                                                                                -----------
                                                                                  3,982,483
                                                                                -----------
            NEW YORK -- 10.8%
 2,300,000  Babylon, New York, Industrial Development Authority Revenue,
             (Babylon Project), (Union Bank of Switzerland, LOC),
             2.150% due 12/1/24++.............................................    2,300,000
 5,500,000  New York City Housing Development Commission Revenue, Special
             Obligations, Series 96-A, (Mitsubishi Bank, LOC),
             1.800% due 8/1/15+++.............................................    5,500,000
 5,900,000  New York City Municipal Water Financing Authority, Series A,
             2.750% due 4/15/94...............................................    5,899,764
 3,500,000  New York City, Revenue Anticipation Notes, Series B,
             3.500% due 6/30/94...............................................    3,510,192
 2,600,000  New York City, Tender Option Custody Receipts,
             2.450% due 3/15/97+++............................................    2,600,000
 6,300,000  New York, New York, General Obligation Bonds, Series A, (Union
             Bank of Switzerland, LOC),
             2.050% due 8/15/22+..............................................    6,300,000
 2,800,000  New York, New York, Revenue Anticipation Notes, Series A,
             3.250% due 4/15/94...............................................    2,803,498
 4,200,000  New York State Energy and Pollution Control Revenue, (Niagara
             Falls Project), (Citibank, LOC),
             Series A, 2.050% due 12/1/23+....................................    4,200,000
   540,000  New York State Home Mortgage Agency Revenue,
             3.000% due 10/1/94...............................................      540,000
 4,200,000  New York State Jobs Development Authority Revenue, (Fuji Bank,
             LOC),
             2.200% due 3/1/05+...............................................    4,200,000
                                                                                -----------
                                                                                 37,853,454
                                                                                -----------
            NORTH CAROLINA -- 3.0%
 7,500,000  Bladen County, North Carolina, Industrial Facilities and Pollution
             Control Revenue, (Bank of Tokyo, LOC),
             2.400% due 11/1/20+++............................................    7,500,000
 2,000,000  North Carolina Eastern Municipal Power Authority Revenue, Series
             D,
             Pre-refunded, (Credit Suisse, LOC),
             10.000% due 1/1/10++.............................................    2,191,989
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       32
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                          Municipal Money Market Fund
<TABLE>
<CAPTION>
                                                                                   VALUE
FACE VALUE                                                                       (NOTE 1)
- ----------                                                                      -----------
<C>         <S>                                                                 <C>
            MUNICIPAL BONDS AND NOTES (CONTINUED)
            NORTH CAROLINA -- (CONTINUED)
$1,000,000  Wake County, North Carolina, Industrial Facilities and Pollution
             Control Revenue,
             2.200% due 5/1/15+++.............................................  $ 1,000,000
                                                                                -----------
                                                                                 10,691,989
                                                                                -----------
            OHIO -- 0.4%
 1,500,000  Cincinnati, Ohio Student Loan Funding Corporation Revenue, Series
             87-A, (Fuji Bank, LOC),
             2.900% due 12/1/04++.............................................    1,499,374
                                                                                -----------
            OREGON -- 2.0%
            Oregon State Economic Development Commission Revenue:
 1,000,000  (Kydtaru Project), (Fuji Bank, LOC),
             2.575% due 2/1/99+++.............................................    1,000,000
 1,325,000  Series A,
             2.500% due 7/1/03+++.............................................    1,325,000
 1,300,000  Series B,
             2.500% due 7/1/02+++.............................................    1,300,000
   800,000  Portland, Oregon, General Obligation Bonds, (Bank of Tokyo, LOC),
             2.450% due 12/1/14+++............................................      800,000
 1,300,000  Portland, Oregon, Pollution Control Revenue,
             2.200% due 12/1/09+..............................................    1,300,000
 1,200,000  Umatilla County, Oregon, Hospital Facilities Financing Authority
             Revenue, (Societe Generale, LOC),
             2.200% due 12/1/24+..............................................    1,200,000
                                                                                -----------
                                                                                  6,925,000
                                                                                -----------
            PENNSYLVANIA -- 6.6%
 2,300,000  Harrisburg, Pennsylvania, Multifamily Housing Redevelopment
             Authority Revenue, (Chemical Bank, LOC),
             2.050% due 12/1/05+++............................................    2,300,000
 1,000,000  Montgomery County, Pennsylvania, General Obligation Bonds, Series
             A,
             5.900% due 7/15/94...............................................    1,013,969
 4,000,000  Pennsylvania and New Jersey, Delaware River Port Authority
             Revenue,
             9.375% due 1/1/11++..............................................    4,353,869
14,300,000  Pennsylvania Economic Development Authority Revenue,
             2.500% due 12/1/19+++............................................   14,300,000
 1,000,000  Philadelphia, Pennsylvania, Hospital and Higher Education
             Authority Revenue,
             2.100% due 3/1/27+++.............................................    1,000,000
                                                                                -----------
                                                                                 22,967,838
                                                                                -----------
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       33
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                          Municipal Money Market Fund
<TABLE>
<CAPTION>
                                                                                   VALUE
FACE VALUE                                                                       (NOTE 1)
- ----------                                                                      -----------
<C>         <S>                                                                 <C>
            MUNICIPAL BONDS AND NOTES (CONTINUED)
            PUERTO RICO -- 0.2%
$  600,000  Puerto Rico Electric Power Authority Revenue,
             10.250% due 7/1/09++.............................................  $   635,681
                                                                                -----------
            SOUTH CAROLINA -- 2.3%
            South Carolina Jobs and Economic Development Authority Revenue,
             (Credit Commerciale, LOC):
    90,000  2.500% due 8/1/95+++..............................................       90,000
   200,000  2.500% due 5/1/01+++..............................................      200,000
 1,420,000  2.500 % due 12/1/04+++............................................    1,420,000
 5,000,000  South Carolina State Housing Finance and Development Authority
             Revenue,
             3.200% due 9/1/94++..............................................    5,000,000
 1,500,000  York County, South Carolina, Pollution Control Revenue,
             2.700% due 9/15/14++.............................................    1,500,000
                                                                                -----------
                                                                                  8,210,000
                                                                                -----------
            TENNESSEE -- 4.2%
 1,300,000  Chattanooga, Tennessee, Industrial Development Board Revenue,
             (ABN Amro Bank, LOC),
             2.200% due 12/15/12+++...........................................    1,300,000
 5,000,000  Coffee County, Tennessee, Industrial Development Board Revenue,
             (Asahi Bank, LOC),
             3.450% due 12/1/01+++............................................    5,000,000
 4,500,000  Maury County, Tennessee, Industrial Development Board Revenue,
             2.500% due 9/1/27+++.............................................    4,500,000
 1,065,000  Memphis, Tennessee, Electric Systems Revenue,
             5.900% due 1/1/95................................................    1,098,004
            Metropolitan Nashville and Davidson County, Utility Revenue,
             (Chemical Bank, LOC),
 1,000,000  2.200% due 12/1/07++..............................................    1,000,000
 1,750,000  Pre-refunded,
             9.375% due 1/1/15++..............................................    1,890,270
                                                                                -----------
                                                                                 14,788,274
                                                                                -----------
            TEXAS -- 7.7%
 3,775,000  Fort Worth, Texas, Housing Financing Corporation Revenue,
             7.750% due 10/1/13++.............................................    3,775,280
 1,000,000  Harris County, Texas, Health Facilities Authority Revenue, Series
             C,
             Pre-refunded, (Morgan Guaranty, LOC),
             2.100% due 2/15/16+..............................................    1,000,000
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       34
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                          Municipal Money Market Fund
<TABLE>
<CAPTION>
                                                                                   VALUE
FACE VALUE                                                                       (NOTE 1)
- ----------                                                                      -----------
<C>         <S>                                                                 <C>
            MUNICIPAL BONDS AND NOTES (CONTINUED)
            TEXAS -- (CONTINUED)
$1,750,000  Harris County, Texas, Toll Road Unlimited Tax Sub Lien Revenue,
             Series F,
             9.250% due 8/1/14++..............................................  $ 1,914,065
 4,900,000  Mansfield, Texas, Industrial Development Corporation Revenue,
             (Banque Paribus, LOC),
             2.400% due 11/1/26+++............................................    4,900,000
            North Texas Higher Education Authority Student Loan Revenue,
             (Student Loan Marketing Association, LOC),
 1,600,000  2.250% due 3/1/05+++..............................................    1,600,000
 2,100,000  (Fuji Bank, LOC),
             2.750% due 12/1/05+++............................................    2,100,000
 1,000,000  Panhandle Plains, Texas, Higher Education Authority Revenue,
             Series A,
             (Industrial Bank, LOC),
             2.650% due 6/1/23++..............................................      999,437
 7,500,000  San Antonio, Texas, General Obligation Bonds, Series 58B,
             2.400% due 8/1/03+++.............................................    7,500,000
 3,000,000  Texas State Tax and Revenue Anticipation Notes,
             3.250% due 8/31/94...............................................    3,009,163
                                                                                -----------
                                                                                 26,797,945
                                                                                -----------
            UTAH -- 1.7%
 3,500,000  Carbon County, Utah, Solid Waste Removal Authority Revenue,
             2.650% due 7/1/08++..............................................    3,500,000
 2,600,000  Tooele County, Utah, Electric Power Authority Revenue, (Project
             A),
             2.650% due 11/1/26++.............................................    2,600,000
                                                                                -----------
                                                                                  6,100,000
                                                                                -----------
            VERMONT -- 0.6%
 2,100,000  Vermont Industrial Development Authority Revenue, (Ryegate
             Project),
             (ABN Amro Bank, LOC),
             2.400% due 12/1/15+++............................................    2,100,000
                                                                                -----------
            VIRGINIA -- 4.8%
            Virginia State Housing Development Authority Revenue:
 2,000,000  2.950% due 7/1/27++...............................................    2,000,048
13,750,000  Series K,
             2.650% due 1/1/22++..............................................   13,753,923
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       35
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                          Municipal Money Market Fund
<TABLE>
<CAPTION>
                                                                                   VALUE
FACE VALUE                                                                       (NOTE 1)
- ----------                                                                      -----------
<C>         <S>                                                                 <C>
            MUNICIPAL BONDS AND NOTES (CONTINUED)
            VIRGINIA -- (CONTINUED)
$1,100,000  Washington County, Virginia, Industrial Development Authority
             Revenue,
             Pre-refunded,
             10.250% due 7/1/14++.............................................  $ 1,154,306
                                                                                -----------
                                                                                 16,908,277
                                                                                -----------
            WASHINGTON -- 1.4%
   750,000  Everett, Washington, Water and Sewer Revenue,
             2.750% due 7/1/94................................................      749,375
 1,630,000  King County, Washington, General Obligation Bonds, Series A,
             8.800% due 12/1/94...............................................    1,713,842
 2,500,000  Washington State Tender Option Custody Receipts,
             2.400% due 10/1/01+..............................................    2,500,000
                                                                                -----------
                                                                                  4,963,217
                                                                                -----------
            WEST VIRGINIA -- 2.7%
            Marion County, West Virginia, County Commission Solid Waste
             Disposal Facilities Revenue, (Granite Town Project), (National
             Westminster, LOC),
 8,400,000  Project A,
             2.300% due 10/1/17+++............................................    8,400,000
 1,200,000  Project D,
             2.300% due 10/1/17+++............................................    1,200,000
                                                                                -----------
                                                                                  9,600,000
                                                                                -----------
            WISCONSIN -- 0.4%
 1,000,000  Wisconsin State Custody Receipts, Series 57A,
             2.400% due 11/1/09+++............................................    1,000,000
   500,000  Wisconsin State General Obligation Notes,
             3.250% due 6/15/94...............................................      500,938
                                                                                -----------
                                                                                  1,500,938
                                                                                -----------
            WYOMING -- 0.6%
 2,000,000  Wyoming Community Development Authority Revenue,
             2.800% due 6/1/14++..............................................    2,000,636
                                                                                -----------
</TABLE>
 
<TABLE>
<S>                                                               <C>       <C>
TOTAL INVESTMENTS (COST $351,607,262*).........................    100.2%      351,607,262
OTHER ASSETS AND LIABILITIES (NET).............................    (0.2)%         (632,219)
                                                                  ------    --------------
NET ASSETS.....................................................    100.0%   $  350,975,043
                                                                  ------    --------------
                                                                  ------    --------------
<FN>
- ------------------------
  * Aggregate cost for Federal tax purposes.
  + Variable rate demand notes are payable upon not more than one business day's
notice.
    The interest rate shown reflects the rate currently in effect.
 ++ Put bonds and notes have demand features which mature within one year. The
    interest rate shown reflects the rate currently in effect.
+++ Variable rate demand notes are payable upon not more than seven business
day's notice.
    The interest rate shown reflects the rate currently in effect.
LOC -- Instruments supported by bank letter of credit.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       36
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                          Municipal Money Market Fund
 
                SUMMARY OF MUNICIPAL BONDS BY COMBINED RATINGS#
 
<TABLE>
<CAPTION>
                                                                           PERCENT
                 MOODY'S            OR            STANDARD                  OF
                                                  & POOR'S                 VALUE
              <S>                         <C>                              <C>
              Aaa                                AAA                         8.2%
              Aa, Aa1, Aa2,
              Aa3                              AA, AA+                      10.2%
              MIG1/VMIG1/P1               A-1/A-1+/SP1/SP1+                 77.4%
              MIG2/VMIG2/P-2                   SP2/A2                        3.9%
              NR                                 NR                          0.3%
                                                                           -----
                                                                           100.0%
                                                                           -----
                                                                           -----
              # Bonds are not necessarily rated the same by both services.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       37
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS
January 31, 1994
 
                     California Municipal Money Market Fund
 
<TABLE>
<CAPTION>
                                                                       VALUE
FACE VALUE                                                           (NOTE 1)
- ----------                                                          -----------
<C>          <S>                                                    <C>
             MUNICIPAL BONDS AND NOTES -- 98.7%
             CALIFORNIA -- 92.3%
             California Health Facilities Financing Authority:
$  300,000   (Adventist Health Facilities), Series B, (Toronto,
              Dominion, LOC),
              2.200% due 8/1/21+++...............................   $   300,000
   300,000   (Catholic Health Care), Series A,
              2.100% due 7/1/09+++...............................       300,000
   500,000   California Housing Finance Agency Revenue, Series F,
              2.400% due 9/15/94.................................       500,000
   100,000   California State Revenue Anticipation Notes,
              3.500% due 6/28/94.................................       100,306
   550,000   Chino, California, Tax and Revenue Anticipation
              Notes,
              3.250% due 7/29/94.................................       550,612
   200,000   Eastern Municipal Water District, California, Water
              and Sewer Revenue, Series B,
              2.200% due 7/1/20+++...............................       200,000
    90,000   Encinitas, California, Public Financing Authority,
              2.550% due 10/1/94.................................        90,000
   295,000   Fontana, California, Apartment Development Revenue,
              (Citrus Avenue Apartments), Series A, (Bank of
              America, LOC),
              2.200% due 11/1/07+++..............................       295,000
   300,000   Hayward, California, Multifamily Housing Revenue,
              (Shorewood Apartments Project), (Citibank, LOC),
              2.100% due 8/1/14+++...............................       300,000
             Irvine Ranch, California, Water District:
   200,000   District 250, (Bank of America, LOC),
              2.150% due 4/1/33+.................................       200,000
   200,000   Series A, (Sumitomo Bank, LOC),
              2.150% due 11/15/13+...............................       200,000
   125,000   Series B, (Sumitomo Bank, LOC),
              2.150% due 10/1/09+................................       125,000
   300,000   Kern County, California, High School District, (Rate
              Financing Project), (Swiss Bank, LOC),
              2.000% due 12/1/03+++..............................       300,000
   300,000   Los Angeles County, California, Museum of Arts,
              Certificates of Participation, (Bank of America,
              LOC),
              2.400% due 11/1/15+++..............................       300,000
   500,000   Los Angeles County, California, Tax and Revenue
              Anticipation Notes,
              3.000% due 6/30/94.................................       500,288
   200,000   Marin County, California, Tax and Revenue
              Anticipation Notes,
              3.000% due 7/6/94..................................       199,991
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       38
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                     California Municipal Money Market Fund
<TABLE>
<CAPTION>
                                                                       VALUE
FACE VALUE                                                           (NOTE 1)
- ----------                                                          -----------
<C>          <S>                                                    <C>
             MUNICIPAL BONDS AND NOTES (CONTINUED)
             CALIFORNIA (CONTINUED)
             Orange County, California, Apartment Development
             Revenue:
$  300,000   Irvine Issue,
              2.100% due 11/1/09++...............................   $   300,000
   300,000   (Monarch Bay Apartments), Project T, (Mitsubishi
              Bank, LOC),
              2.100% due 10/1/07+++..............................       300,000
   600,000   Orange County, California, Certificates of
              Participation, (Dai Ichi, Kangyo Bank, LOC),
              2.100% due 12/1/15+................................       600,000
   400,000   Riverside County, California, Board of Education,
              School District Authority Revenue,
              3.250% due 7/15/94.................................       400,814
   300,000   Riverside County, California, Certificates of
              Participation, (Sanwa Bank, LOC),
              1.950% due 11/1/15+++..............................       300,000
   500,000   Sacramento County, California, Certificates of
              Participation, (Sanwa Bank, LOC),
              2.050% due 6/1/96+++...............................       500,000
   100,000   Sacramento County, California, Multifamily Housing
              Revenue, Series A, (Dai Ichi, Kangyo Bank, LOC),
              2.300% due 4/15/07+++..............................       100,000
   300,000   Sacramento County, California, Tax and Revenue
              Anticipation Notes,
              3.000% due 7/29/94.................................       300,105
   100,000   San Bernardino County, California, General
              Obligation Bonds,
              3.250% due 7/29/94.................................       100,225
   500,000   San Bernardino County, California, Housing Revenue,
              Series B, (Federal Home Loan, LOC),
              2.150% due 5/1/17+++...............................       500,000
   200,000   San Francisco, California, City and County Tax
              Revenue Anticipation Notes,
              3.250% due 7/15/94.................................       200,460
   300,000   San Luis, California, Coastal School District,
              Certificate-86, (Credit Suisse, LOC),
              2.050% due 12/1/08+++..............................       300,000
   275,000   Santa Clara County, California, Tax and Revenue
              Anticipation Notes,
              3.250% due 7/29/94+++..............................       275,684
   200,000   Southern California Rapid Transit Revenue, District
              A,
              3.000% due 2/22/94.................................       200,019
                                                                    -----------
                                                                      8,838,504
                                                                    -----------
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       39
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
PORTFOLIO OF INVESTMENTS (continued)
January 31, 1994
 
                     California Municipal Money Market Fund
<TABLE>
<CAPTION>
                                                                       VALUE
FACE VALUE                                                           (NOTE 1)
- ----------                                                          -----------
<C>          <S>                                                    <C>
             MUNICIPAL BONDS AND NOTES (CONTINUED)
             PUERTO RICO -- 6.4%
$  300,000   Commonwealth of Puerto Rico, Tax and Revenue,
              Project Notes,
              3.000% due 7/29/94.................................   $   300,843
   100,000   Puerto Rico, Electric Power Authority Revenue,
              Pre-refunded,
              10.250% due 7/1/09+++..............................       105,947
   200,000   Puerto Rico Health Facilities and Services Revenue,
              Pre-refunded,
              9.125% due 8/15/94.................................       206,428
                                                                    -----------
                                                                        613,218
                                                                    -----------
TOTAL INVESTMENTS (COST $9,451,722*)....................    98.7 %  $ 9,451,722
OTHER ASSETS AND LIABILITIES (NET)......................     1.3 %      123,768
                                                           ------   -----------
NET ASSETS..............................................   100.0 %  $ 9,575,490
                                                           ------   -----------
                                                           ------   -----------
<FN>
- ------------------------
  * Aggregate cost for Federal tax purposes.
  + Variable rate demand notes are payable upon not more than one business day's
notice.
   The interest rate shown reflects the rate currently in effect.
 ++ Put bonds and notes have demand features which mature within one year. The
    interest rate shown reflects the rate currently in effect.
+++ Variable rate demand notes are payable upon not more than seven business
days' notice.
   The interest rate shown reflects the rate currently in effect.
LOC -- Instruments supported by bank letter of credit.
</TABLE>
 
                SUMMARY OF MUNICIPAL BONDS BY COMBINED RATINGS#
 
<TABLE>
<CAPTION>
                                                                           PERCENT
                 MOODY'S            OR            STANDARD                  OF
                                                  & POOR'S                 VALUE
              <S>                         <C>                              <C>
              Aaa                                AAA                         4.3%
              MIG1/VMIG1/P1               A-1/A-1+/SP1/SP1+                 89.4%
              NR                                 NR                          6.3%
                                                                           -----
                                                                           100.0%
                                                                           -----
                                                                           -----
              # Bonds are not necessarily rated the same by both services.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       40
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
STATEMENTS OF ASSETS AND LIABILITIES
January 31, 1994
 
<TABLE>
<CAPTION>
                                                                                                            100%
                                                                                           GOVERNMENT    GOVERNMENT
                                                                           PRIME VALUE     OBLIGATIONS   OBLIGATIONS
                                                          PRIME MONEY      MONEY MARKET   MONEY MARKET      MONEY
                                                          MARKET FUND          FUND           FUND       MARKET FUND
                                                         --------------   --------------  -------------  -----------
ASSETS
<S>                                                      <C>              <C>             <C>            <C>
Investments, at value
  See accompanying schedules:
    Securities.........................................  $2,834,164,199   $3,679,860,695  $103,809,457   $42,629,330
    Repurchase agreements..............................     384,328,000      318,188,000    22,640,000       --
                                                         --------------   --------------  -------------  -----------
Total investments......................................   3,218,492,199    3,998,048,695   126,449,457   42,629,330
Cash...................................................             110         --                 816          205
Receivable from Investment Adviser (Note 2)............        --                629,793       112,550       84,021
Receivable from Administrator (Note 2).................        --                 73,570         1,820          115
Interest receivable....................................       5,878,368        9,425,312       134,519       92,313
Unamortized organization costs (Note 5)................          51,316           51,316        51,316       51,316
Other assets...........................................             448              197       --            --
                                                         --------------   --------------  -------------  -----------
  Total Assets.........................................   3,224,422,441    4,008,228,883   126,750,478   42,857,300
                                                         --------------   --------------  -------------  -----------
LIABILITIES
Payable for investment securities purchased............        --               --           5,000,000    1,000,000
Investment Advisory fee payable (Note 2)...............         191,321         --             --            --
Administration fee payable (Note 2)....................          37,046         --             --            --
Service fee payable (Note 3)...........................          52,631            4,136             3       --
Transfer Agent fee payable.............................          18,000           18,000         4,000        4,000
Custodian fees payable (Note 2)........................          34,000           29,750        10,625       17,000
Due to custodian.......................................        --                594,321       --            --
Dividends payable......................................       5,897,978        7,430,296       151,203      106,747
Accrued registration and filing fees...................       1,106,650        1,376,268        41,708       14,382
Accrued shareholder reports expense....................           8,500            8,500         4,592        1,467
Organization costs payable.............................           1,531            1,531         1,482        1,482
Accrued expenses and other payables....................          55,545           68,171         4,221        2,744
                                                         --------------   --------------  -------------  -----------
  Total Liabilities....................................       7,403,202        9,530,973     5,217,834    1,147,822
                                                         --------------   --------------  -------------  -----------
NET ASSETS.............................................  $3,217,019,239   $3,998,697,910  $121,532,644   $41,709,478
                                                         --------------   --------------  -------------  -----------
                                                         --------------   --------------  -------------  -----------
Investments, at cost (Note 1)..........................  $3,218,492,199   $3,998,048,695  $126,449,457   $42,629,330
                                                         --------------   --------------  -------------  -----------
                                                         --------------   --------------  -------------  -----------
</TABLE>
 
                                       41
<PAGE>
 
<TABLE>
<CAPTION>
                                                          TREASURY                                                 CALIFORNIA
                                            TREASURY     INSTRUMENTS   100% TREASURY                               MUNICIPAL
                                          INSTRUMENTS       MONEY       INSTRUMENTS     TAX-FREE      MUNICIPAL      MONEY
                                          MONEY MARKET   MARKET FUND   MONEY MARKET   MONEY MARKET   MONEY MARKET    MARKET
                                              FUND           II            FUND           FUND           FUND         FUND
                                          ------------   -----------   -------------  -------------  ------------  ----------
ASSETS
<S>                                       <C>            <C>           <C>            <C>            <C>           <C>
Investments, at value
  See accompanying schedules:
    Securities..........................  $ 2,483,164    $125,140,883  $127,760,839   $ 59,261,812   $351,607,262  $9,451,722
    Repurchase agreements...............      399,000    65,814,000         --             --            --           --
                                          ------------   -----------   -------------  -------------  ------------  ----------
Total investments.......................    2,882,164    190,954,883    127,760,839     59,261,812   351,607,262   9,451,722
Cash....................................          435           346           2,673      2,014,731     4,212,159      --
Receivable from Investment Adviser (Note
  2)....................................      109,954       101,466          87,541        102,805        82,366      53,130
Receivable from Administrator (Note
  2)....................................      --             31,058           7,352          2,134        13,325         429
Interest receivable.....................           35         5,759         --             452,420     1,874,416      77,507
Unamortized organization costs (Note
  5)....................................       51,316        51,316          51,316         51,316        51,316      51,316
Other assets............................      --             --             --             --            --           --
                                          ------------   -----------   -------------  -------------  ------------  ----------
  Total Assets..........................    3,043,904    191,144,828    127,909,721     61,885,218   357,840,844   9,634,104
                                          ------------   -----------   -------------  -------------  ------------  ----------
LIABILITIES
Payable for investment securities
  purchased.............................      --             --             --           2,002,918     6,201,061      --
Investment Advisory fee payable (Note
  2)....................................      --             --             --             --            --           --
Administration fee payable (Note 2).....        9,246        --             --             --            --           --
Service fee payable (Note 3)............            7         7,010              10        --            --               85
Transfer Agent fee payable..............        3,000         3,000           3,000          4,000         4,000       3,500
Custodian fees payable (Note 2).........       17,000        17,000          10,625         16,356        10,056       6,375
Due to custodian........................      --             --             --             --            --           15,238
Dividends payable.......................        7,591       398,651         377,173         97,205       509,953      21,419
Accrued registration and filing fees....        1,033        65,538          43,948         20,493       120,917       3,302
Accrued shareholder reports expense.....        3,000         3,000           5,905          3,000         3,000       3,000
Organization costs payable..............        1,531         1,531           1,531          1,482         1,482       1,482
Accrued expenses and other payables.....        1,050         5,670           4,394          4,978        15,332       4,213
                                          ------------   -----------   -------------  -------------  ------------  ----------
  Total Liabilities.....................       43,458       501,400         446,586      2,150,432     6,865,801      58,614
                                          ------------   -----------   -------------  -------------  ------------  ----------
NET ASSETS..............................  $ 3,000,446    $190,643,428  $127,463,135   $ 59,734,786   $350,975,043  $9,575,490
                                          ------------   -----------   -------------  -------------  ------------  ----------
                                          ------------   -----------   -------------  -------------  ------------  ----------
Investments, at cost (Note 1)...........  $ 2,882,164    $190,954,883  $127,760,839   $ 59,261,812   $351,607,262  $9,451,722
                                          ------------   -----------   -------------  -------------  ------------  ----------
                                          ------------   -----------   -------------  -------------  ------------  ----------
</TABLE>
 
                                       42
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
STATEMENTS OF ASSETS AND LIABILITIES (continued)
January 31, 1994
 
<TABLE>
<CAPTION>
                                                                                                            100%
                                                                                           GOVERNMENT    GOVERNMENT
                                                                           PRIME VALUE     OBLIGATIONS   OBLIGATIONS
                                                          PRIME MONEY      MONEY MARKET   MONEY MARKET      MONEY
                                                          MARKET FUND          FUND           FUND       MARKET FUND
                                                         --------------   --------------  -------------  -----------
NET ASSETS consist of:
<S>                                                      <C>              <C>             <C>            <C>
Accumulated net realized gain/(loss) on investments
  sold.................................................  $       19,757   $        1,576  $      1,817   $      (92 )
Par value..............................................       3,216,999        3,998,696       121,531       41,710
Paid-in capital in excess of par value.................   3,213,782,483    3,994,697,638   121,409,296   41,667,860
                                                         --------------   --------------  -------------  -----------
                                                         $3,217,019,239   $3,998,697,910  $121,532,644   $41,709,478
                                                         --------------   --------------  -------------  -----------
                                                         --------------   --------------  -------------  -----------
NET ASSETS:
Class A................................................  $2,866,352,823   $3,981,183,775  $121,532,344   $41,709,278
                                                         --------------   --------------  -------------  -----------
                                                         --------------   --------------  -------------  -----------
Class B................................................  $  350,666,316   $   17,503,912  $        100   $      100
                                                         --------------   --------------  -------------  -----------
                                                         --------------   --------------  -------------  -----------
Class C................................................  $          100   $          100  $        100   $      100
                                                         --------------   --------------  -------------  -----------
                                                         --------------   --------------  -------------  -----------
Class D................................................       N/A         $       10,123  $        100      N/A
                                                         --------------   --------------  -------------  -----------
                                                         --------------   --------------  -------------  -----------
SHARES OUTSTANDING:
Class A................................................   2,866,335,220    3,981,182,206   121,530,527   41,709,370
                                                         --------------   --------------  -------------  -----------
                                                         --------------   --------------  -------------  -----------
Class B................................................     350,664,162       17,503,905           100          100
                                                         --------------   --------------  -------------  -----------
                                                         --------------   --------------  -------------  -----------
Class C................................................             100              100           100          100
                                                         --------------   --------------  -------------  -----------
                                                         --------------   --------------  -------------  -----------
Class D................................................       N/A                 10,123           100      N/A
                                                         --------------   --------------  -------------  -----------
                                                         --------------   --------------  -------------  -----------
CLASS A SHARES:
Net asset value, offering and redemption price per
  share................................................  $         1.00   $         1.00  $       1.00   $     1.00
                                                         --------------   --------------  -------------  -----------
                                                         --------------   --------------  -------------  -----------
CLASS B SHARES:
Net asset value, offering and redemption price per
  share................................................  $         1.00   $         1.00  $       1.00   $     1.00
                                                         --------------   --------------  -------------  -----------
                                                         --------------   --------------  -------------  -----------
CLASS C SHARES:
Net asset value, offering and redemption price per
  share................................................  $         1.00   $         1.00  $       1.00   $     1.00
                                                         --------------   --------------  -------------  -----------
                                                         --------------   --------------  -------------  -----------
CLASS D SHARES:
Net asset value, offering and redemption price per
  share................................................       N/A         $         1.00  $       1.00      N/A
                                                         --------------   --------------  -------------  -----------
                                                         --------------   --------------  -------------  -----------
</TABLE>
 
                                       43
<PAGE>
 
<TABLE>
<CAPTION>
                                                          TREASURY                                                 CALIFORNIA
                                            TREASURY     INSTRUMENTS   100% TREASURY                               MUNICIPAL
                                          INSTRUMENTS       MONEY       INSTRUMENTS     TAX-FREE      MUNICIPAL      MONEY
                                          MONEY MARKET   MARKET FUND   MONEY MARKET   MONEY MARKET   MONEY MARKET    MARKET
                                              FUND           II            FUND           FUND           FUND         FUND
                                          ------------   -----------   -------------  -------------  ------------  ----------
NET ASSETS consist of:
<S>                                       <C>            <C>           <C>            <C>            <C>           <C>
Accumulated net realized gain/(loss) on
  investments sold......................  $       143    $      (10 )  $      6,349   $      4,796   $    18,503   $     (65 )
Par value...............................        3,000       190,643         127,457         59,730       350,957       9,576
Paid-in capital in excess of par
  value.................................    2,997,303    190,452,795    127,329,329     59,670,260   350,605,583   9,565,979
                                          ------------   -----------   -------------  -------------  ------------  ----------
                                          $ 3,000,446    $190,643,428  $127,463,135   $ 59,734,786   $350,975,043  $9,575,490
                                          ------------   -----------   -------------  -------------  ------------  ----------
                                          ------------   -----------   -------------  -------------  ------------  ----------
NET ASSETS:
Class A.................................  $ 3,000,246    $156,781,738  $127,462,935   $ 59,734,586   $350,974,743  $9,575,290
                                          ------------   -----------   -------------  -------------  ------------  ----------
                                          ------------   -----------   -------------  -------------  ------------  ----------
Class B.................................  $       100    $33,861,590   $        100   $        100   $       100   $     100
                                          ------------   -----------   -------------  -------------  ------------  ----------
                                          ------------   -----------   -------------  -------------  ------------  ----------
Class C.................................  $       100    $      100    $        100   $        100   $       100   $     100
                                          ------------   -----------   -------------  -------------  ------------  ----------
                                          ------------   -----------   -------------  -------------  ------------  ----------
Class D.................................      N/A           N/A            N/A            N/A        $       100      N/A
                                          ------------   -----------   -------------  -------------  ------------  ----------
                                          ------------   -----------   -------------  -------------  ------------  ----------
SHARES OUTSTANDING:
Class A.................................    3,000,103    156,781,748    127,456,586     59,729,790   350,956,240   9,575,355
                                          ------------   -----------   -------------  -------------  ------------  ----------
                                          ------------   -----------   -------------  -------------  ------------  ----------
Class B.................................          100    33,861,590             100            100           100         100
                                          ------------   -----------   -------------  -------------  ------------  ----------
                                          ------------   -----------   -------------  -------------  ------------  ----------
Class C.................................          100           100             100            100           100         100
                                          ------------   -----------   -------------  -------------  ------------  ----------
                                          ------------   -----------   -------------  -------------  ------------  ----------
Class D.................................      N/A           N/A            N/A            N/A                100      N/A
                                          ------------   -----------   -------------  -------------  ------------  ----------
                                          ------------   -----------   -------------  -------------  ------------  ----------
CLASS A SHARES:
Net asset value, offering and redemption
  price per share.......................  $      1.00    $     1.00    $       1.00   $       1.00   $      1.00   $    1.00
                                          ------------   -----------   -------------  -------------  ------------  ----------
                                          ------------   -----------   -------------  -------------  ------------  ----------
CLASS B SHARES:
Net asset value, offering and redemption
  price per share.......................  $      1.00    $     1.00    $       1.00   $       1.00   $      1.00   $    1.00
                                          ------------   -----------   -------------  -------------  ------------  ----------
                                          ------------   -----------   -------------  -------------  ------------  ----------
CLASS C SHARES:
Net asset value, offering and redemption
  price per share.......................  $      1.00    $     1.00    $       1.00   $       1.00   $      1.00   $    1.00
                                          ------------   -----------   -------------  -------------  ------------  ----------
                                          ------------   -----------   -------------  -------------  ------------  ----------
CLASS D SHARES:
Net asset value, offering and redemption
  price per share.......................      N/A           N/A            N/A            N/A        $      1.00      N/A
                                          ------------   -----------   -------------  -------------  ------------  ----------
                                          ------------   -----------   -------------  -------------  ------------  ----------
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       44
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
STATEMENTS OF OPERATIONS
For the Period Ended January 31, 1994*
 
<TABLE>
<CAPTION>
                                                                                                       100%
                                                                                      GOVERNMENT    GOVERNMENT
                                                                       PRIME VALUE   OBLIGATIONS   OBLIGATIONS
                                                         PRIME MONEY   MONEY MARKET  MONEY MARKET  MONEY MARKET
                                                         MARKET FUND       FUND          FUND          FUND
                                                         ------------  ------------  ------------  ------------
INVESTMENT INCOME:
<S>                                                      <C>           <C>           <C>           <C>
Interest...............................................  $38,166,828   $36,485,442   $ 2,304,750   $   866,763
                                                         ------------  ------------  ------------  ------------
EXPENSES:
Investment Advisory fee (Note 2).......................    1,165,899     1,106,003        72,100        27,323
Administration fee (Note 2)............................    1,165,899     1,106,003        72,100        27,323
Service fee (Note 3)...................................      127,892        21,438           771       --
Transfer Agent fees (Note 2)...........................      108,360       108,360        49,281        49,281
Custodian fees (Note 2)................................       77,193        67,336        23,880        37,719
Legal and audit fees...................................       75,431        90,963        15,491         9,719
Registration and filing fees...........................    1,174,150     1,456,128       116,215        75,363
Trustees' fees and expenses (Note 2)...................        9,589         9,589         9,589         9,589
Amortization of organization costs (Note 5)............       12,828        12,828        12,828        12,828
Other..................................................       22,593        10,844         9,639         1,539
Fees waived by Investment Adviser, Administrator,
  Custodian and Transfer Agent and expenses reimbursed
  by Investment Adviser and Administrator (Note 2).....   (2,506,373 )  (3,216,860 )    (357,224 )    (233,315 )
                                                         ------------  ------------  ------------  ------------
  Total expenses.......................................    1,433,461       772,632        24,670        17,369
                                                         ------------  ------------  ------------  ------------
NET INVESTMENT INCOME..................................   36,733,367    35,712,810     2,280,080       849,394
                                                         ------------  ------------  ------------  ------------
NET REALIZED GAIN/(LOSS) ON INVESTMENTS (Note 1).......       19,757         1,576         1,817           (92 )
                                                         ------------  ------------  ------------  ------------
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS...  $36,753,124   $35,714,386   $ 2,281,897   $   849,302
                                                         ------------  ------------  ------------  ------------
                                                         ------------  ------------  ------------  ------------
</TABLE>
 
- ------------------------------
* The Trust commenced operations on February 8, 1993.
 
                                       45
<PAGE>
 
<TABLE>
<CAPTION>
                                                        TREASURY       100%                              CALIFORNIA
                                           TREASURY    INSTRUMENTS   TREASURY                 MUNICIPAL  MUNICIPAL
                                          INSTRUMENTS     MONEY     INSTRUMENTS   TAX-FREE      MONEY      MONEY
                                             MONEY     MARKET FUND     MONEY        MONEY      MARKET      MARKET
                                          MARKET FUND      II       MARKET FUND  MARKET FUND    FUND        FUND
                                          -----------  -----------  -----------  -----------  ---------  ----------
INVESTMENT INCOME:
<S>                                       <C>          <C>          <C>          <C>          <C>        <C>
Interest................................  $  197,111   $3,051,762   $2,160,812   $  389,411   $2,751,075 $ 162,028
                                          -----------  -----------  -----------  -----------  ---------  ----------
EXPENSES:
Investment Advisory fee (Note 2)........       6,589       96,737       70,084       15,640    103,318       6,746
Administration fee (Note 2).............       6,589       96,737       70,084       15,640    103,318       6,746
Service fee (Note 3)....................         454       35,867          923       --          --             85
Transfer Agent fees (Note 2)............      48,281       49,539       48,281       49,159     49,281      48,781
Custodian fees (Note 2).................      38,593       38,699       23,771       36,994     22,954      14,114
Legal and audit fees....................       8,017       13,042       11,651       11,903     26,436      11,163
Registration and filing fees............      62,928      127,951      104,941       80,813    195,414       5,974
Trustees' fees and expenses (Note 2)....       9,589        9,589        9,589        8,453      9,589       9,589
Amortization of organization costs (Note
  5)....................................      12,828       12,828       12,828       12,828     12,828      12,828
Other...................................       5,977       32,393        5,977        5,792      7,862       5,710
Fees waived by Investment Adviser,
  Administrator, Custodian and Transfer
  Agent and expenses reimbursed by
  Investment Adviser and Administrator
  (Note 2)..............................    (199,391 )   (447,890 )   (322,016 )   (219,637 ) (399,415 )  (115,356 )
                                          -----------  -----------  -----------  -----------  ---------  ----------
  Total expenses........................         454       65,492       36,113       17,585    131,585       6,380
                                          -----------  -----------  -----------  -----------  ---------  ----------
NET INVESTMENT INCOME...................     196,657    2,986,270    2,124,699      371,826   2,619,490    155,648
                                          -----------  -----------  -----------  -----------  ---------  ----------
NET REALIZED GAIN/(LOSS) ON INVESTMENTS
  (Note 1)..............................         143          (10 )      6,349        4,796     18,503         (65 )
                                          -----------  -----------  -----------  -----------  ---------  ----------
NET INCREASE IN NET ASSETS RESULTING
  FROM OPERATIONS.......................  $  196,800   $2,986,260   $2,131,048   $  376,622   $2,637,993 $ 155,583
                                          -----------  -----------  -----------  -----------  ---------  ----------
                                          -----------  -----------  -----------  -----------  ---------  ----------
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       46
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
STATEMENTS OF CHANGES IN NET ASSETS
For the Period Ended January 31, 1994*
 
<TABLE>
<CAPTION>
                                                                                                                    100%
                                                                                                 GOVERNMENT      GOVERNMENT
                                                                              PRIME VALUE       OBLIGATIONS     OBLIGATIONS
                                                           PRIME MONEY        MONEY MARKET      MONEY MARKET    MONEY MARKET
                                                           MARKET FUND            FUND              FUND            FUND
                                                         ----------------   ----------------   --------------   ------------
Net investment income..................................  $     36,733,367   $     35,712,810   $   2,280,080    $   849,394
<S>                                                      <C>                <C>                <C>              <C>
Net realized gain/(loss) on investments sold during the
  period...............................................            19,757              1,576           1,817            (92)
                                                         ----------------   ----------------   --------------   ------------
Net increase in net assets resulting from operations...        36,753,124         35,714,386       2,281,897        849,302
Distributions to shareholders from net investment
  income:
  Class A..............................................       (35,241,368)       (35,371,441)     (2,270,996)      (849,394)
  Class B..............................................        (1,490,671)          (341,369)         (9,084)       --
  Class C..............................................            (1,328)         --               --              --
  Class D..............................................         --                 --               --              --
Net increase in net assets from share transactions
  (Note 4):
  Class A..............................................     2,866,238,320      3,981,182,129     121,530,427     41,709,270
  Class B..............................................       350,664,162         17,503,805        --              --
  Class C..............................................         --                 --               --              --
  Class D..............................................         --                    10,100             100        --
                                                         ----------------   ----------------   --------------   ------------
Net increase in net assets.............................     3,216,922,239      3,998,697,610     121,532,344     41,709,178
NET ASSETS:
Beginning of period....................................            97,000                300             300            300
                                                         ----------------   ----------------   --------------   ------------
End of period..........................................  $  3,217,019,239   $  3,998,697,910   $ 121,532,644    $41,709,478
                                                         ----------------   ----------------   --------------   ------------
                                                         ----------------   ----------------   --------------   ------------
</TABLE>
 
- ------------------------------
* The Trust commenced operations on February 8, 1993.
 
                                       47
<PAGE>
<TABLE>
<CAPTION>
                                             TREASURY        TREASURY      100% TREASURY
                                           INSTRUMENTS      INSTRUMENTS     INSTRUMENTS      TAX-FREE        MUNICIPAL
                                           MONEY MARKET    MONEY MARKET    MONEY MARKET    MONEY MARKET    MONEY MARKET
                                               FUND           FUND II          FUND            FUND            FUND
                                          --------------   -------------   -------------   -------------   -------------
Net investment income...................  $     196,657    $  2,986,270    $  2,124,699    $    371,826    $  2,619,490
<S>                                       <C>              <C>             <C>             <C>             <C>
Net realized gain/(loss) on investments
  sold during the period................            143             (10)          6,349           4,796          18,503
                                          --------------   -------------   -------------   -------------   -------------
Net increase in net assets resulting
  from operations.......................        196,800       2,986,260       2,131,048         376,622       2,637,993
Distributions to shareholders from net
  investment income:
  Class A...............................       (191,672)     (2,574,727)     (2,114,345)       (371,826)     (2,619,490)
  Class B...............................         (4,985)       (411,543)        (10,354)        --              --
  Class C...............................       --               --              --              --              --
  Class D...............................       --               --              --              --              --
Net increase in net assets from share
  transactions (Note 4):
  Class A...............................      3,000,003     156,781,648     127,456,486      59,729,690     350,956,140
  Class B...............................       --            33,861,490         --              --              --
  Class C...............................       --               --              --              --              --
  Class D...............................       --               --              --              --                  100
                                          --------------   -------------   -------------   -------------   -------------
Net increase in net assets..............      3,000,146     190,643,128     127,462,835      59,734,486     350,974,743
NET ASSETS:
Beginning of period.....................            300             300             300             300             300
                                          --------------   -------------   -------------   -------------   -------------
End of period...........................  $   3,000,446    $190,643,428    $127,463,135    $ 59,734,786    $350,975,043
                                          --------------   -------------   -------------   -------------   -------------
                                          --------------   -------------   -------------   -------------   -------------
 
<CAPTION>
                                           CALIFORNIA
                                            MUNICIPAL
                                          MONEY MARKET
                                              FUND
                                          -------------
Net investment income...................  $    155,648
<S>                                       <C>
Net realized gain/(loss) on investments
  sold during the period................           (65)
                                          -------------
Net increase in net assets resulting
  from operations.......................       155,583
Distributions to shareholders from net
  investment income:
  Class A...............................      (155,063)
  Class B...............................          (585)
  Class C...............................       --
  Class D...............................       --
Net increase in net assets from share
  transactions (Note 4):
  Class A...............................     9,575,255
  Class B...............................       --
  Class C...............................       --
  Class D...............................       --
                                          -------------
Net increase in net assets..............     9,575,190
NET ASSETS:
Beginning of period.....................           300
                                          -------------
End of period...........................  $  9,575,490
                                          -------------
                                          -------------
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       48
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
FINANCIAL HIGHLIGHTS
FOR A SHARE OUTSTANDING THROUGHOUT THE PERIOD.
 
                            PRIME MONEY MARKET FUND
 
<TABLE>
<CAPTION>
                                                               PERIOD       PERIOD       PERIOD
                                                               ENDED        ENDED        ENDED
                                                              1/31/94*     1/31/94*     1/31/94*
                                                             ----------    --------    ----------
<S>                                                          <C>           <C>         <C>
                                                               CLASS A     CLASS B     CLASS C
                                                             ----------    --------    ----------
Net asset value, beginning of period......................   $    1.00     $1.00       $  1.00
                                                             ----------    --------    ----------
Net investment income+++..................................      0.0310     0.0110       0.0001
Dividends from net investment income......................     (0.0310 )   (0.0110 )   (0.0001   )
                                                             ----------    --------    ----------
Net asset value, end of period............................   $    1.00     $1.00       $  1.00
                                                             ----------    --------    ----------
                                                             ----------    --------    ----------
Total return++............................................       3.14%     0.99%        --***
                                                             ----------    --------    ----------
                                                             ----------    --------    ----------
Ratios to average net assets/supplemental data:
  Net assets, end of period (in 000's)....................   $2,866,353    $350,666     -- #
  Ratio of net investment income to average net assets....       3.16% +   2.91%   +     2.81%   +
  Ratio of operating expenses to average net assets**.....       0.11% +   0.36%   +     0.46%   +
<FN>
- ------------------------
  * The Prime Money Market Fund Class A, Class B and Class C Shares commenced
    operations on February 8, 1993, September 2, 1993 and December 27, 1993,
    respectively.
 ** Annualized expense ratio before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator for Class A, Class B and Class C were
    0.33%, 0.58% and 0.68%, respectively.
*** Full amount of shares offered to the public on December 27, 1993 and were
    redeemed on December 28, 1993, therefore total return deemed not to be
    meaningful.
  + Annualized.
 ++ Total return represents aggregate total return for the period indicated.
+++ Net investment income before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator for Class A, Class B and Class C were
    $0.0289, $0.0102 and $0.0001, respectively.
 #Total net assets for Class C was $100 at January 31, 1994.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       49
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
FINANCIAL HIGHLIGHTS
 
FOR A SHARE OUTSTANDING THROUGHOUT THE PERIOD.
 
                         PRIME VALUE MONEY MARKET FUND
 
<TABLE>
<CAPTION>
                                                               PERIOD        PERIOD        PERIOD
                                                               ENDED         ENDED         ENDED
                                                              1/31/94*      1/31/94*      1/31/94*
                                                             ----------    ----------    ----------
<S>                                                          <C>           <C>           <C>
                                                              CLASS A       CLASS B       CLASS D
                                                             ----------    ----------    ----------
Net asset value, beginning of period......................   $   1.00      $   1.00      $   1.00
                                                             ----------    ----------    ----------
Net investment income+++..................................     0.0315        0.0125        0.0021
Dividends from net investment income......................    (0.0315  )    (0.0125  )    (0.0021  )
                                                             ----------    ----------    ----------
Net asset value, end of period............................   $   1.00      $   1.00      $   1.00
                                                             ----------    ----------    ----------
                                                             ----------    ----------    ----------
Total return++............................................      3.21%         1.26%         0.26%
                                                             ----------    ----------    ----------
                                                             ----------    ----------    ----------
Ratios to average net assets/supplemental data:
  Net assets, end of period (in 000's)....................   $3,981,184    $ 17,504      $     10
  Ratio of net investment income to average net assets....      3.23%  +      2.98%  +      3.10%  +
  Ratio of operating expenses to average net assets**.....      0.07%  +      0.32%  +      0.20%  +
<FN>
- ------------------------
  * The Prime Value Money Market Fund Class A, Class B and Class D Shares
    commenced operations on February 8, 1993, September 1, 1993 and January 6,
    1994, respectively.
 ** Annualized expense ratio before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator for Class A, Class B and Class D were
    0.36%, 0.61% and 0.49%, respectively.
  + Annualized.
 ++ Total return represents aggregate total return for the period indicated.
+++ Net investment income before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator for Class A, Class B and Class D were
    $0.0287, $0.0113 and $0.0010, respectively.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       50
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
FINANCIAL HIGHLIGHTS
 
FOR A SHARE OUTSTANDING THROUGHOUT THE PERIOD.
 
                    GOVERNMENT OBLIGATIONS MONEY MARKET FUND
 
<TABLE>
<CAPTION>
                                                               PERIOD        PERIOD
                                                               ENDED         ENDED
                                                              1/31/94*      1/31/94*
                                                             ----------    ----------
<S>                                                          <C>           <C>
                                                              CLASS A       CLASS B
                                                             ----------    ----------
Net asset value, beginning of period......................   $   1.00      $   1.00
                                                             ----------    ----------
Net investment income+++..................................     0.0309        0.0091
Dividends from net investment income......................    (0.0309  )    (0.0091  )
                                                             ----------    ----------
Net asset value, end of period............................   $   1.00      $   1.00
                                                             ----------    ----------
                                                             ----------    ----------
Total return++............................................      3.14%         0.90%
                                                             ----------    ----------
                                                             ----------    ----------
Ratios to average net assets/supplemental data:
  Net assets, end of period (in 000's)....................   $121,532        -- #
  Ratio of net investment income to average net assets....      3.18%  +      2.93%  +
  Ratio of operating expenses to average net assets**.....      0.03%  +      0.28%  +
<FN>
- ------------------------
  * The Government Obligations Money Market Fund Class A and Class B Shares
    commenced operations on February 8, 1993, and August 16, 1993, respectively.
 ** Annualized expense ratio before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator for Class A and Class B were 0.53% and
    0.78%, respectively.
  + Annualized.
 ++ Total return represents aggregate total return for the period indicated.
+++ Net investment income before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator for Class A and Class B were $0.0261
    and $0.0075, respectively.
 # Total net assets for Class B was $100 at January 31, 1994.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       51
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
FINANCIAL HIGHLIGHTS
 
FOR A SHARE OUTSTANDING THROUGHOUT THE PERIOD.
 
                 100% GOVERNMENT OBLIGATIONS MONEY MARKET FUND
 
<TABLE>
<CAPTION>
                                                              PERIOD
                                                              ENDED
                                                             1/31/94*
                                                             --------
<S>                                                          <C>
                                                             CLASS A
                                                             --------
Net asset value, beginning of period......................   $ 1.00
                                                             --------
Net investment income+++..................................   0.0304
Dividends from net investment income......................   (0.0304 )
                                                             --------
Net asset value, end of period............................   $ 1.00
                                                             --------
                                                             --------
Total return++............................................    3.09%
                                                             --------
                                                             --------
Ratios to average net assets/supplemental data:
  Net assets, end of period (in 000's)....................   $41,709
  Ratio of net investment income to average net assets....    3.11%  +
  Ratio of operating expenses to average net assets**.....    0.06%  +
<FN>
- ------------------------
  * The 100% Government Obligations Money Market Fund Class A Shares commenced
    operations on February 8, 1993.
 ** Annualized expense ratio before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator was 0.92%.
  + Annualized.
 ++ Total return represents aggregate total return for the period indicated.
+++ Net investment income before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator was $0.0220.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       52
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
FINANCIAL HIGHLIGHTS
 
FOR A SHARE OUTSTANDING THROUGHOUT THE PERIOD.
 
                     TREASURY INSTRUMENTS MONEY MARKET FUND
 
<TABLE>
<CAPTION>
                                                               PERIOD        PERIOD
                                                               ENDED         ENDED
                                                              1/31/94*      1/31/94*
                                                             ----------    ----------
<S>                                                          <C>           <C>
                                                              CLASS A       CLASS B
                                                             ----------    ----------
Net asset value, beginning of period......................   $   1.00      $   1.00
                                                             ----------    ----------
Net investment income+++..................................     0.0292        0.0100
Dividends from net investment income......................    (0.0292  )    (0.0100  )
                                                             ----------    ----------
Net asset value, end of period............................   $   1.00      $   1.00
                                                             ----------    ----------
                                                             ----------    ----------
Total return++............................................      2.94%         1.00%
                                                             ----------    ----------
                                                             ----------    ----------
Ratios to average net assets/supplemental data:
  Net assets, end of period (in 000's)....................   $  3,000        --#
  Ratio of net investment income to average net assets....      2.99%  +      2.74%  +
  Ratio of operating expenses to average net assets**.....      0.00%  +      0.25%  +
<FN>
- ------------------------
  * The Treasury Instruments Money Market Fund Class A and Class B Shares
    commenced operations on February 8, 1993, and April 21, 1993, respectively.
 ** Annualized expense ratio before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator for Class A and Class B were 3.02% and
    3.27%, respectively.
  + Annualized.
 ++ Total return represents aggregate total return for the period indicated.
+++ Net investment loss before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator for Class A and Class B were $(0.0003)
    and $(0.0010), respectively.
 # Total net assets for Class B was $100 at January 31, 1994.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       53
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
FINANCIAL HIGHLIGHTS
 
FOR A SHARE OUTSTANDING THROUGHOUT THE PERIOD.
 
                   TREASURY INSTRUMENTS MONEY MARKET FUND II
 
<TABLE>
<CAPTION>
                                                               PERIOD        PERIOD
                                                               ENDED         ENDED
                                                              1/31/94*      1/31/94*
                                                             ----------    ----------
<S>                                                          <C>           <C>
                                                              CLASS A       CLASS B
                                                             ----------    ----------
Net asset value, beginning of period......................   $   1.00      $   1.00
                                                             ----------    ----------
Net investment income+++..................................     0.0300        0.0198
Dividends from net investment income......................    (0.0300  )    (0.0198  )
                                                             ----------    ----------
Net asset value, end of period............................   $   1.00      $   1.00
                                                             ----------    ----------
                                                             ----------    ----------
Total return++............................................      3.04%         2.00%
                                                             ----------    ----------
                                                             ----------    ----------
Ratios to average net assets/supplemental data:
  Net assets, end of period (in 000's)....................   $156,782      $ 33,862
  Ratio of net investment income to average net assets....      3.12%  +      2.87%  +
  Ratio of operating expenses to average net assets**.....      0.03%  +      0.28%  +
<FN>
- ------------------------
  * The Treasury Instruments Money Market Fund II Class A and Class B Shares
    commenced operations on February 8, 1993 and May 24, 1993, respectively.
 ** Annualized expense ratio before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator for Class A and Class B were 0.49% and
    0.74%, respectively.
  + Annualized.
 ++ Total return represents aggregate total return for the period indicated.
+++ Net investment income before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator for Class A and Class B were $0.0256
    and $0.0166, respectively.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       54
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
FINANCIAL HIGHLIGHTS
 
FOR A SHARE OUTSTANDING THROUGHOUT THE PERIOD.
 
                  100% TREASURY INSTRUMENTS MONEY MARKET FUND
 
<TABLE>
<CAPTION>
                                                              PERIOD      PERIOD
                                                              ENDED       ENDED
                                                             1/31/94*    1/31/94*
                                                             --------    --------
<S>                                                          <C>         <C>
                                                             CLASS A     CLASS B
                                                             --------    --------
Net asset value, beginning of period......................   $ 1.00      $ 1.00
                                                             --------    --------
Net investment income+++..................................   0.0292      0.0149
Dividends from net investment income......................   (0.0292 )   (0.0149 )
                                                             --------    --------
Net asset value, end of period............................   $ 1.00      $ 1.00
                                                             --------    --------
                                                             --------    --------
Total return++............................................    2.95%       1.55%
                                                             --------    --------
                                                             --------    --------
Ratios to average net assets/supplemental data:
  Net assets, end of period (in 000's)....................   $127,463     -- #
  Ratio of net investment income to average net assets....    3.03%  +    2.78%  +
  Ratio of operating expenses to average net assets**.....    0.05%  +    0.30%  +
<FN>
- ------------------------
  * The 100% Treasury Instruments Money Market Fund Class A and Class B Shares
    commenced operations on February 8, 1993 and May 2, 1993, respectively.
 ** Annualized expense ratio before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator for Class A and Class B were 0.51% and
    0.76%, respectively.
  + Annualized.
 ++ Total return represents aggregate total return for the period indicated.
+++ Net investment income before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator for Class A and Class B were $0.0248
    and $0.0124, respectively.
 # Total net assets for Class B was $100 at January 31, 1994.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       55
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
FINANCIAL HIGHLIGHTS
 
FOR A SHARE OUTSTANDING THROUGHOUT THE PERIOD.
 
                           TAX-FREE MONEY MARKET FUND
 
<TABLE>
<CAPTION>
                                                               PERIOD
                                                               ENDED
                                                              1/31/94*
                                                             ----------
<S>                                                          <C>
                                                             CLASS A
                                                             ----------
Net asset value, beginning of period......................   $  1.00
                                                             ----------
Net investment income+++..................................    0.0228
Dividends from net investment income......................   (0.0228   )
                                                             ----------
Net asset value, end of period............................   $  1.00
                                                             ----------
                                                             ----------
Total return++............................................     2.30%
                                                             ----------
                                                             ----------
Ratios to average net assets/supplemental data:
  Net assets, end of period (in 000's)....................   $59,735
  Ratio of net investment income to average net assets....     2.38%   +
  Ratio of operating expenses to average net assets**.....     0.11%   +
<FN>
- ------------------------
  * The Tax-Free Money Market Fund Class A Shares commenced operations on
February 8, 1993.
 ** Annualized expense ratio before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator was 1.52%.
  + Annualized.
 ++ Total return represents aggregate total return for the period indicated.
+++ Net investment income before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator was $0.0093.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       56
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
FINANCIAL HIGHLIGHTS
 
FOR A SHARE OUTSTANDING THROUGHOUT THE PERIOD.
 
                          MUNICIPAL MONEY MARKET FUND
 
<TABLE>
<CAPTION>
                                                               PERIOD
                                                               ENDED
                                                              1/31/94*
                                                             ----------
<S>                                                          <C>
                                                              CLASS A
                                                             ----------
Net asset value, beginning of period......................   $   1.00
                                                             ----------
Net investment income+++..................................     0.0243
Dividends from net investment income......................    (0.0243  )
                                                             ----------
Net asset value, end of period............................   $   1.00
                                                             ----------
                                                             ----------
Total return++............................................      2.46%
                                                             ----------
                                                             ----------
Ratios to average net assets/supplemental data:
  Net assets, end of period (in 000's)....................   $350,975
  Ratio of net investment income to average net assets....      2.53%  +
  Ratio of operating expenses to average net assets**.....      0.13%  +
<FN>
- ------------------------
  * The Municipal Money Market Fund Class A Shares commenced operations on
February 8, 1993.
 ** Annualized expense ratio before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator was 0.51%.
  + Annualized.
 ++ Total return represents aggregate total return for the period indicated.
+++ Net investment income before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator was $0.0201.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       57
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
FINANCIAL HIGHLIGHTS
 
FOR A SHARE OUTSTANDING THROUGHOUT THE PERIOD.
 
                     CALIFORNIA MUNICIPAL MONEY MARKET FUND
 
<TABLE>
<CAPTION>
                                                               PERIOD        PERIOD
                                                               ENDED         ENDED
                                                              1/31/94*      1/31/94*
                                                             ----------    ----------
<S>                                                          <C>           <C>
                                                              CLASS A       CLASS B
                                                             ----------    ----------
Net asset value, beginning of period......................   $   1.00      $   1.00
                                                             ----------    ----------
Net investment income+++..................................     0.0225        0.0003
Dividends from net investment income......................    (0.0225  )    (0.0003  )
                                                             ----------    ----------
Net asset value, end of period............................   $   1.00      $   1.00
                                                             ----------    ----------
                                                             ----------    ----------
Total return++............................................      2.29%       --***
                                                             ----------    ----------
                                                             ----------    ----------
Ratios to average net assets/supplemental data:
  Net assets, end of period (in 000's)....................   $  9,575        --#
  Ratio of net investment income to average net assets....      2.31%  +      2.06%  +
  Ratio of operating expenses to average net assets**.....      0.09%  +      0.34%  +
<FN>
- ------------------------
  * The California Municipal Money Market Fund Class A and Class B shares
    commenced operations on February 8, 1993 and January 6, 1994, respectively.
 ** Annualized expense ratio before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator for Class A and Class B were 1.80% and
    2.05%, respectively.
*** Full amount of shares offered to the public on January 6, 1994 and were
    redeemed on January 11, 1994, therefore total return deemed not to be
    meaningful.
  + Annualized.
 ++ Total return represents aggregate total return for the period indicated.
+++ Net investment income before waiver of fees by the Investment Adviser,
    Administrator, Custodian and Transfer Agent and expenses reimbursed by the
    Investment Adviser and Administrator for Class A and Class B were $0.0058
    and $0.0001, respectively.
 # Total net assets for Class B was $100 at January 31, 1994.
</TABLE>
 
                       See Notes to Financial Statements.
 
                                       58
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
 
NOTES TO FINANCIAL STATEMENTS
 
1. SIGNIFICANT ACCOUNTING POLICIES
    Lehman   Brothers  Institutional   Funds  Group  Trust   (the  "Trust")  was
established on November  25, 1992 as  a Massachusetts business  trust. It is  an
open-end management investment company, which consists of ten funds: Prime Money
Market  Fund, Prime Value Money Market Fund, Government Obligations Money Market
Fund, 100% Government Obligations Money Market Fund, Treasury Instruments  Money
Market   Fund,  Treasury  Instruments  Money   Market  Fund  II,  100%  Treasury
Instruments Money  Market  Fund, Tax-Free  Money  Market Fund,  Municipal  Money
Market  Fund  and California  Municipal Money  Market  Fund (the  "Funds"). Fund
shares generally may not be purchased directly by individuals, but institutional
investors may purchase shares for accounts maintained by individuals. All Funds,
except Prime Value Money Market  Fund, Government Obligations Money Market  Fund
and  Municipal Money Market Fund, currently offer three classes of shares: Class
A, Class  B  and  Class  C.  The  Prime  Value  Money  Market  Fund,  Government
Obligations Money Market Fund and Municipal Money Market Fund also offer Class D
shares to certain individual investors. Class A shares are sold to institutional
investors  that have not entered into servicing agreements. Class B, Class C and
Class D shares bear  service fees. All classes  of shares have identical  rights
and  privileges except that Class B, Class  C and Class D shares possess certain
exclusive voting rights on  matters relating to  their respective service  fees.
Shares  of the Treasury Instruments Money Market  Fund are not currently sold to
the public.  The  following is  a  summary of  significant  accounting  policies
consistently  followed  by  the  Funds in  the  preparation  of  their financial
statements.
 
    PORTFOLIO VALUATION:  Securities of the Funds are valued at amortized  cost,
which  approximates market  value. Amortized  cost valuation  involves valuing a
security at cost initially and, thereafter, assuming a constant amortization  to
maturity  of  any discount  or premium,  as  long as  the effect  of fluctuating
interest rates on the market value of the instrument is not significant.
 
    REPURCHASE AGREEMENTS:    The  Funds  may  engage  in  repurchase  agreement
transactions. The Fund values repurchase agreements at cost and accrues interest
into  interest receivable. Under the terms  of a typical repurchase agreement, a
Fund takes possession of the underlying debt obligation subject to an obligation
of the  seller to  repurchase, and  the Fund  to resell,  the obligation  at  an
agreed-upon  price and  time, thereby  determining the  yield during  the Fund's
holding period. This arrangement results in a  fixed rate of return that is  not
subject  to market fluctuations  during the Fund's holding  period. The value of
the collateral, taken as a part of  the repurchase agreement, is at least  equal
at  all  times to  the  total amount  of  the repurchase  obligations, including
interest. In the event of  counterparty default, the Fund  has the right to  use
the collateral to offset losses incurred. There is potential loss to the Fund in
the event the Fund is delayed or prevented from exercising its rights to dispose
of  the collateral securities, including  the risk of a  possible decline in the
value of the  underlying securities during  the period while  the Fund seeks  to
assert its rights. The Fund's Investment Adviser and Administrator, acting under
the  supervision of the Board  of Trustees, reviews the  value of the collateral
and the creditworthiness of those banks  and dealers with which the Funds  enter
into repurchase agreements to evaluate potential risks.
 
    SECURITIES  TRANSACTIONS AND INVESTMENT INCOME:  Securities transactions are
recorded as of the trade date. Realized gains and losses on investments sold are
recorded on the  basis of identified  cost. Interest income  is recorded on  the
accrual  basis. Investment income  and realized and  unrealized gains and losses
are allocated based upon the relative net assets of each class of shares.
 
    EXPENSES:  Operating expenses directly attributable to a class of shares are
charged  to  that  class'  operations.  Expenses  of  the  Funds  not   directly
attributable  to the operations  of any class  of shares are  prorated among the
classes to which the expense  relates based on the  relative net assets of  each
class.
 
    FEDERAL  INCOME TAXES:  The Funds  intend to qualify as regulated investment
companies by complying  with the requirements  of the Internal  Revenue Code  of
1986,  as  amended  and  applicable to  regulated  investment  companies  and by
distributing substantially all  of their taxable  income to their  shareholders.
Therefore, no Federal income tax provision is required.
 
                                       59
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
    DIVIDENDS  AND DISTRIBUTIONS TO SHAREHOLDERS:  Dividends from net investment
income of each Fund are determined on  a class level and are declared daily  and
paid monthly. The Funds do not expect to realize any net long-term capital gains
and therefore do not contemplate payments of any capital gains dividends.
 
    Income dividends and capital gain distributions are determined in accordance
with  income tax regulations which may differ from generally accepted accounting
principles. These  differences  are primarily  due  to differing  treatments  of
income  and  gains on  various investment  securities held  by the  Fund, timing
differences and differing characterization of distributions made by the Fund.
 
2. INVESTMENT ADVISORY FEE, ADMINISTRATION FEE AND OTHER RELATED PARTY
TRANSACTIONS
 
    Lehman Brothers  Global  Asset  Management Inc.  ("LBGAM"),  serves  as  the
Trust's  Investment  Adviser pursuant  to  Investment Advisory  Agreements dated
February 5, 1993. LBGAM is a wholly owned subsidiary of Lehman Brothers Holdings
Inc. ("Holdings"). All of the issued and outstanding common stock  (representing
92%  of  the voting  stock)  of Holdings  is  held by  American  Express Company
("American Express"). The remainder of Holding's voting stock is owned by Nippon
Life Insurance  Company.  Under the  Investment  Advisory Agreements,  LBGAM  is
entitled  to receive a  monthly fee at an  annual rate of 0.10%  of the value of
each Fund's average  daily net assets.  For the period  ended January 31,  1994,
LBGAM voluntarily waived and reimbursed expenses as follows:
 
<TABLE>
<CAPTION>
                                   FEES WAIVED  EXPENSES REIMBURSED
                                   ------------ --------------------
<S>                                <C>          <C>
Prime Money Market Fund............ $1,165,899        $--
Prime Value Money Market Fund......  1,106,003         757,799
Government Obligations Money Market
 Fund..............................     72,100         163,039
100% Government Obligations Money
 Market Fund.......................     27,323         130,650
Treasury Instruments Money Market
 Fund..............................      6,589         138,230
Treasury Instruments Money Market
 Fund II...........................     96,737         173,335
100% Treasury Instruments Money
 Market Fund.......................     70,084         128,972
Tax-Free Money Market Fund.........     15,640         139,234
Municipal Money Market Fund........    103,318         133,212
California Municipal Money Market
 Fund..............................      6,746          69,533
</TABLE>
 
    For  the period from  February 8, 1993 (commencement  of operations) to July
26, 1993, Shearson  Lehman Advisors  Inc. ("Shearson Advisors"),  then a  wholly
owned  subsidiary  of Holdings,  served  as the  Trust's  Sub-Investment Adviser
pursuant to  Sub-Investment Advisory  Agreements, dated  February 5,  1993  (the
"Sub-Advisory Agreements") between Shearson Advisors, LBGAM and each Fund. Under
the  Sub-Advisory Agreements,  Shearson Advisors  was entitled  to receive, from
LBGAM, a monthly fee for its services at  the annual rate of 0.05% of the  value
of  each Fund's average daily net assets.  Upon the recommendation of LBGAM, the
Board of Trustees approved the termination of the Sub-Advisory Agreements.  This
development  was caused  by the impending  sale of certain  retail brokerage and
asset  management  businesses  of  Shearson  Lehman  Brothers,  Inc.  The   sale
transaction   would  have  resulted  in  the  termination  of  the  Sub-Advisory
Agreements  by  operation  of  law.  Effective  July  26,  1993,  LBGAM  assumed
responsibility  for the functions previously  performed by the Sub-Adviser under
the Sub-Advisory Agreements.
 
    The Boston Company  Advisors, Inc. ("Boston  Advisors"), an indirect  wholly
owned  subsidiary of  Mellon Bank Corporation  ("Mellon") serves  as the Trust's
Administrator pursuant to an Administration Agreement. Under the  Administration
Agreement,  Boston Advisors is entitled  to receive a monthly  fee at the annual
rate of 0.10% of the value of  each Fund's respective average daily net  assets.
For  the period  ended January 31,  1994, Boston Advisors  waived and reimbursed
expenses as follows:
 
<TABLE>
<CAPTION>
                                   FEES WAIVED  EXPENSES REIMBURSED
                                   ------------ --------------------
<S>                                <C>          <C>
Prime Money Market Fund............ $1,165,899        $115,300
Prime Value Money Market Fund......  1,106,003         192,939
</TABLE>
 
                                       60
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
<TABLE>
<CAPTION>
                                                    FEES WAIVED  EXPENSES REIMBURSED
                                                    -----------  -------------------
<S>                                                 <C>          <C>
Government Obligations Money Market Fund..........   $  72,100        $  19,087
100% Government Obligations Money Market Fund.....      27,323            9,381
Treasury Instruments Money Market Fund............       6,589            9,345
Treasury Instruments Money Market Fund II.........      96,737           42,443
100% Treasury Instruments Money Market Fund.......      70,084           21,978
Tax-Free Money Market Fund........................      15,640           10,485
Municipal Money Market Fund.......................     103,318           28,669
California Municipal Money Market Fund............       6,746            6,592
</TABLE>
 
    No officer or employee of Lehman Brothers Inc., LBGAM, Boston Advisors or of
any parent, subsidiary or affiliate  thereof receives any compensation from  the
Trust  for serving as  an officer or Trustee  of the Trust.  The Trust pays each
Trustee who is  not an officer  or employee  of Lehman Brothers  Inc., LBGAM  or
Boston  Advisors or  any parent,  subsidiary, or  affiliate thereof  $20,000 per
annum, plus $1,250 per  meeting attended, and reimburses  each such Trustee  for
travel and out-of-pocket expenses.
 
    Boston  Safe Deposit and  Trust Company ("Boston  Safe"), an indirect wholly
owned subsidiary  of Mellon,  serves as  the Funds'  Custodian. The  Shareholder
Services  Group, Inc. ("TSSG"),  a subsidiary of  First Data Corporation ("FDC")
serves as the Funds' Transfer Agent. American Express retains 21.5% interest  in
FDC.  For the period ended January 31, 1994, Boston Safe and TSSG waived fees as
follows:
 
<TABLE>
<CAPTION>
                                                    BOSTON SAFE     TSSG
                                                    FEES WAIVED  FEES WAIVED
                                                    -----------  -----------
<S>                                                 <C>          <C>
Prime Money Market Fund...........................   $  41,275    $  18,000
Prime Value Money Market Fund.....................      36,116       18,000
Government Obligations Money Market Fund..........      12,898       18,000
100% Government Obligations Money Market Fund.....      20,638       18,000
Treasury Instruments Money Market Fund............      20,638       18,000
Treasury Instruments Money Market Fund II.........      20,638       18,000
100% Treasury Instruments Money Market Fund.......      12,898       18,000
Tax-Free Money Market Fund........................      20,638       18,000
Municipal Money Market Fund.......................      12,898       18,000
California Municipal Money Market Fund............       7,739       18,000
</TABLE>
 
3. SERVICE AGREEMENTS
 
    Lehman Brothers Inc. and Funds Distributor, Inc. act as Distributors of  the
Trust's  shares. Funds Distributor, Inc. is  a wholly owned subsidiary of Lehman
Brothers Inc.
 
    Pursuant to Rule 12b-1 under the  Investment Company Act of 1940, the  Funds
have  adopted  Service Agreements  with institutional  investors such  as banks,
savings  and  loan  associations  and  other  financial  institutions  ("service
organizations")  which may purchase Class  B, Class C and  Class D shares. Under
the Service Agreements each Fund compensates service organizations for servicing
shareholder accounts and covers expenses incurred in distributing Class B, Class
C and Class D shares. Service Agreement fees are paid by each Fund, with respect
to Class B,  Class C and  Class D, at  annual rates of  0.25%, 0.35% and  0.30%,
respectively,  of the value of  the average daily net  assets of each respective
class of shares. Lehman  Brothers Inc. waived  a portion of  the Class D  shares
service agreement fees. The rate in effect for the period ended January 31, 1994
was 0.20% of the value of the average daily net assets of Class D shares.
 
4. SHARES OF BENEFICIAL INTEREST
 
    The  Trustees have authority to issue an unlimited number of $.001 par value
shares of beneficial interest divided into  three classes: Class A, Class B  and
Class   C  for  each  Fund  and  a  fourth  class,  Class  D,  for  Prime  Value
 
                                       61
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
Money Market,  Government  Obligations Money  Market  Fund and  Municipal  Money
Market Fund. Since the Funds have sold shares, issued shares as reinvestments of
dividends  and redeemed shares only  at a constant net  asset value of $1.00 per
share, the  number  of  shares  represented by  such  sales,  reinvestments  and
redemptions is the same of the amounts shown below for such transactions.
 
    The  Table below  summarizes transactions  of Class A,  Class B  and Class C
shares, at $1.00, for the Prime Money Market Fund:
 
<TABLE>
<CAPTION>
                                                                  PERIOD ENDED
                                                                    1/31/94*
                                                ------------------------------------------------
                                                    CLASS A           CLASS B         CLASS C
                                                ---------------    -------------    ------------
<S>                                             <C>                <C>              <C>
Sold........................................     21,207,896,867      548,120,402      16,828,189
Dividend Reinvestment.......................          7,640,432              548         --
Redeemed....................................    (18,349,298,979)    (197,456,788)    (16,828,189)
                                                ---------------    -------------    ------------
Net increase................................      2,866,238,320      350,664,162               0
                                                ---------------    -------------    ------------
                                                ---------------    -------------    ------------
</TABLE>
 
    The Table below  summarizes transactions  of Class A,  Class B  and Class  D
shares, at $1.00, for the Prime Value Money Market Fund:
 
<TABLE>
<CAPTION>
                                                                  PERIOD ENDED
                                                                    1/31/94*
                                                ------------------------------------------------
                                                    CLASS A           CLASS B         CLASS D
                                                ---------------    -------------    ------------
<S>                                             <C>                <C>              <C>
Sold........................................     16,321,320,158       51,179,212          10,100
Dividend Reinvestment.......................          7,546,037         --               --
Redeemed....................................    (12,347,684,066)     (33,675,407)        --
                                                ---------------    -------------    ------------
Net increase................................      3,981,182,129       17,503,805          10,100
                                                ---------------    -------------    ------------
                                                ---------------    -------------    ------------
</TABLE>
 
    The  Table below  summarizes transactions  of Class A,  Class B  and Class D
shares, at $1.00, for the Government Obligations Money Market Fund:
 
<TABLE>
<CAPTION>
                                                                  PERIOD ENDED
                                                                    1/31/94*
                                                ------------------------------------------------
                                                    CLASS A           CLASS B         CLASS D
                                                ---------------    -------------    ------------
<S>                                             <C>                <C>              <C>
Sold........................................        691,207,998        1,002,462             100
Dividend Reinvestment.......................            579,010            8,677         --
Redeemed....................................       (570,256,581)      (1,011,139)        --
                                                ---------------    -------------    ------------
Net increase................................        121,530,427                0             100
                                                ---------------    -------------    ------------
                                                ---------------    -------------    ------------
</TABLE>
 
    The Table below summarizes transactions of Class A shares, at $1.00, for the
100% Government Obligations Money Market Fund:
 
<TABLE>
<CAPTION>
                                                                                    PERIOD ENDED
                                                                                      1/31/94*
                                                                                    ------------
<S>                                             <C>                <C>              <C>
Sold............................................................................      94,083,622
Dividend Reinvestment...........................................................           1,889
Redeemed........................................................................     (52,376,241)
                                                                                    ------------
Net increase....................................................................      41,709,270
                                                                                    ------------
                                                                                    ------------
</TABLE>
 
                                       62
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
    The Table below summarizes  transactions of Class A  and Class B shares,  at
$1.00, for the Treasury Instruments Money Market Fund:
 
<TABLE>
<CAPTION>
                                                               PERIOD ENDED
                                                                 1/31/94*
                                                        ---------------------------
                                                           CLASS A        CLASS B
                                                        -------------    ----------
<S>                                                     <C>              <C>
Sold................................................       62,369,567       860,000
Dividend Reinvestment...............................         --               4,986
Redeemed............................................      (59,369,564)     (864,986)
                                                        -------------    ----------
Net increase........................................        3,000,003             0
                                                        -------------    ----------
                                                        -------------    ----------
</TABLE>
 
    The  Table below summarizes transactions  of Class A and  Class B shares, at
$1.00, for the Treasury Instruments Money Market Fund II:
 
<TABLE>
<CAPTION>
                                                               PERIOD ENDED
                                                                 1/31/94*
                                                      -------------------------------
                                                          CLASS A          CLASS B
                                                      ---------------    ------------
<S>                                                   <C>                <C>
Sold..............................................      1,213,748,675      34,177,279
Dividend Reinvestment.............................            172,105         411,598
Redeemed..........................................     (1,057,139,132)       (727,387)
                                                      ---------------    ------------
Net increase......................................        156,781,648      33,861,490
                                                      ---------------    ------------
                                                      ---------------    ------------
</TABLE>
 
    The Table below summarizes  transactions of Class A  and Class B shares,  at
$1.00, for the 100% Treasury Instruments Money Market Fund:
 
<TABLE>
<CAPTION>
                                                                PERIOD ENDED
                                                                  1/31/94*
                                                        ----------------------------
                                                           CLASS A         CLASS B
                                                        -------------    -----------
<S>                                                     <C>              <C>
Sold................................................      300,937,678      1,196,815
Dividend Reinvestment...............................         --                8,667
Redeemed............................................     (173,481,192)    (1,205,482)
                                                        -------------    -----------
Net increase........................................      127,456,486              0
                                                        -------------    -----------
                                                        -------------    -----------
</TABLE>
 
    The Table below summarizes transactions of Class A shares, at $1.00, for the
Tax-Free Money Market Fund:
 
<TABLE>
<CAPTION>
                                                                  PERIOD ENDED
                                                                    1/31/94*
                                                                  -------------
<S>                                                               <C>
Sold..........................................................     159,786,350
Dividend Reinvestment.........................................          11,346
Redeemed......................................................    (100,068,006 )
                                                                  -------------
Net increase..................................................      59,729,690
                                                                  -------------
                                                                  -------------
</TABLE>
 
                                       63
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
    The  Table below summarizes transactions  of Class A and  Class D shares, at
$1.00, for the Municipal Money Market Fund:
 
<TABLE>
<CAPTION>
                                                               PERIOD ENDED
                                                                 1/31/94*
                                                        --------------------------
                                                            CLASS A        CLASS D
                                                        ---------------    -------
<S>                                                     <C>                <C>
Sold................................................      1,935,295,434       100
Dividend Reinvestment...............................            300,097      --
Redeemed............................................     (1,584,639,391)     --
                                                        ---------------    -------
Net increase........................................        350,956,140       100
                                                        ---------------    -------
                                                        ---------------    -------
</TABLE>
 
    The Table below summarizes  transactions of Class A  and Class B shares,  at
$1.00, for the California Municipal Money Market Fund:
 
<TABLE>
<CAPTION>
                                                            PERIOD ENDED
                                                              1/31/94*
                                                     --------------------------
                                                       CLASS A        CLASS B
                                                     ------------   -----------
      <S>                                            <C>            <C>
      Sold........................................     21,700,100     3,949,532
      Dividend Reinvestment.......................        --            --
      Redeemed....................................    (12,124,845)   (3,949,532)
                                                     ------------   -----------
      Net increase................................      9,575,255             0
                                                     ------------   -----------
                                                     ------------   -----------
<FN>
- ------------------------
*The Trust commenced operations on February 8, 1993.
</TABLE>
 
    As  of  January  31, 1994,  the  Government Obligations  Money  Market Fund,
Treasury Instruments Money Market Fund, 100% Government Obligations Money Market
Fund, 100% Treasury  Money Market  Fund, Municipal Money  Market Fund,  Tax-Free
Money Market Fund and California Municipal Money Market Fund had each issued 100
Class B shares in the amount of $100 to Lehman Brothers. As of January 31, 1994,
the  Funds had each  issued 100 Class C  shares in the amount  of $100 to Lehman
Brothers. As of January 31, 1994,  the Government Obligations Money Market  Fund
and Municipal Money Market Fund had each issued 100 Class D shares in the amount
of  $100 to Lehman Brothers. During the period ended January 31, 1994, there was
no income or expenses allocated to Class B, Class C and Class D shares that  did
not have activity.
 
5. ORGANIZATION COSTS
 
    The  Funds bear all  costs in connection  with their organization, including
fees and expenses of  registering and qualifying  their shares for  distribution
under  Federal  and  state  securities regulations.  All  such  costs  are being
amortized on  the straight-line  method over  a period  of five  years from  the
commencement  of operations of the  Funds. In the event  that any of the initial
shares of the Funds are redeemed during such amortization period, the Funds will
be reimbursed for any unamortized organization  costs in the same proportion  as
the  number of shares redeemed bears to the number of initial shares held at the
time of redemption.
 
6. CONCENTRATION OF CREDIT
 
    The California  Municipal  Money  Market  Fund  primarily  invests  in  debt
obligations  issued by the  State of California  and its political subdivisions,
agencies and public authorities to obtain funds for various public purposes. The
Fund is more susceptible  to factors adversely  affecting issuers of  California
municipal  securities  than  is  a  municipal  money  market  fund  that  is not
concentrated in these issuers to the same extent.
 
7. SUBSEQUENT EVENTS
 
    As of March  28, 1994,  the Trust  will begin  offering two  new Funds,  the
Floating Rate U.S. Government Fund and the Short Duration U.S. Government Fund.
 
                                       64
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
    As  of  March  14,  1994,  the Prime  Value  Money  Market  Fund, Government
Obligations Money Market Fund and Municipal Money Market Fund no longer  offered
Class D shares.
 
    For  the  period  from  February 8,  1993  (commencement  of  operations) to
February 23, 1994, Funds  Distributor, Inc. served,  along with Lehman  Brothers
Inc.,  as the  Trust's distributor, pursuant  to a  Distribution Agreement dated
February  3,  1993  between   the  Trust  and   Funds  Distributor,  Inc.   (the
"Agreement").  The Board of  Trustees approved the  termination of the Agreement
effective February 23, 1994. As of that date, Lehman Brothers Inc., pursuant  to
a  Distribution Agreement  dated February 5,  1993 between the  Trust and Lehman
Brothers  Inc.,  assumed  sole  responsibility  for  the  functions   previously
performed by Funds Distributor, Inc. under the Agreement.
 
                                       65
<PAGE>
                         REPORT OF INDEPENDENT AUDITORS
 
To the Shareholders and Trustees
Lehman Brothers Institutional Funds Group Trust
 
    We  have  audited the  accompanying  statements of  assets  and liabilities,
including the portfolio  of investments of  Lehman Brothers Institutional  Funds
Group  Trust (the Trust), (comprising respectively, the Prime Money Market Fund,
Prime Value Money Market  Fund, Government Obligations  Money Market Fund,  100%
Government  Obligations  Money Market  Fund,  Treasury Instruments  Money Market
Fund, Treasury Instruments Money Market Fund II, 100% Treasury Instruments Money
Market Fund, Tax-Free  Money Market Fund,  Municipal Money Market  Fund and  the
California  Municipal Money Market  Fund, collectively the  Funds) as of January
31, 1994, and the  related statements of operations  and changes in net  assets,
and  the financial  highlights for the  periods indicated therein  for each Fund
class of shares.  These financial  statements and financial  highlights are  the
responsibility  of the Trust's  management. Our responsibility  is to express an
opinion on  these financial  statements and  financial highlights  based on  our
audit.
 
    We  conducted  our  audit  in accordance  with  generally  accepted auditing
standards. Those standards require that we plan and perform the audit to  obtain
reasonable  assurance  about  whether  the  financial  statements  and financial
highlights are free of material misstatement.  An audit includes examining on  a
test  basis, evidence  supporting the amounts  and disclosures  in the financial
statements. Our  procedures  included confirmation  of  securities owned  as  of
January  31, 1994,  by correspondence  with the  custodian and  brokers or other
appropriate auditing procedures where replies from brokers were not received. An
audit also includes  assessing the  accounting principles  used and  significant
estimates  made  by  management, as  well  as evaluating  the  overall financial
statement presentation. We believe  that our audit  provides a reasonable  basis
for our opinion.
 
    In  our opinion, the financial  statements and financial highlights referred
to above present  fairly, in all  material respects, the  financial position  of
each  of the respective  Funds constituting Lehman  Brothers Institutional Funds
Group Trust at January 31, 1994, the results of their operations and changes  in
their  net assets and financial highlights for the periods indicated therein for
each Fund  class of  shares, in  conformity with  generally accepted  accounting
principles.
 
Boston, Massachusetts
March 16, 1994
 
                                       66
<PAGE>
LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
 
TAX INFORMATION
 
YEAR ENDED JANUARY 31, 1994 (UNAUDITED)
 
    Of the dividends paid from net investment income for the Tax-Free Money
Market Fund, the Municipal Money Market Fund and the California Municipal Money
Market Fund for the year January 31, 1994, 100% is tax exempt for regular
Federal income tax purposes.
 
                                       67
<PAGE>
                LEHMAN BROTHERS INSTITUTIONAL FUNDS GROUP TRUST
                            Prime Money Market Fund
                         Prime Value Money Market Fund
 
                    Government Obligations Money Market Fund
                 100% Government Obligations Money Market Fund
                     Treasury Instruments Money Market Fund
                   Treasury Instruments Money Market Fund II
                  100% Treasury Instruments Money Market Fund
                           Tax-Free Money Market Fund
                          Municipal Money Market Fund
                     California Municipal Money Market Fund
 
THIS  REPORT  IS  FOR THE  GENERAL  INFORMATION  OF THE  SHAREHOLDERS  OF LEHMAN
BROTHERS INSTITUTIONAL  FUNDS  GROUP  TRUST.  ITS USE  IN  CONNECTION  WITH  ANY
OFFERING  OF THE TRUST'S SHARES IS AUTHORIZED ONLY IF ACCOMPANIED OR PRECEDED BY
THE TRUST'S CURRENT PROSPECTUS.



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