UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-CSR CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act file number: 811- 5336 Exact name of registrant as specified in charter: Prudential Institutional Liquidity Portfolio, Inc. Address of principal executive offices: Gateway Center 3 100 Mulberry Street Newark, New Jersey 07102 Name and address of agent for service: Jonathan D. Shain Gateway Center 3 100 Mulberry Street Newark, New Jersey 07102 Registrant's telephone number, including area code: 973-802-6469 Date of fiscal year end: March 31, 2004 Date of reporting period: September 30, 2003 Item 1 -- Reports to Stockholders SEMIANNUAL REPORT SEPTEMBER 30, 2003 PRUDENTIAL INSTITUTIONAL LIQUIDITY PORTFOLIO, INC./ INSTITUTIONAL MONEY MARKET SERIES FUND TYPE Money market OBJECTIVE High current income consistent with the preservation of principal and liquidity This report is not authorized for distribution to prospective investors unless preceded or accompanied by a current prospectus. The views expressed in this report and information about the Series' portfolio holdings are for the period covered by this report and are subject to change thereafter. Prudential Financial and the Rock logo are registered service marks of The Prudential Insurance Company of America, Newark, NJ, and its affiliates. (LOGO) Prudential Institutional Liquidity Portfolio, Inc. Institutional Money Market Series Performance at a Glance SERIES OBJECTIVE The investment objective of the Prudential Institutional Liquidity Portfolio, Inc. (PILP)/Institutional Money Market Series (the Series) is high current income consistent with the preservation of principal and liquidity. There can be no assurance that the Series will meet its investment objective. Institutional Money Fund Yield Comparison (GRAPH) Past performance is not indicative of future results. The graph portrays weekly 7-day current yields for PILP/Institutional Money Market Series and the iMoneyNet, Inc. Prime Institutional Universe Average every Tuesday from April 1, 2003 to September 30, 2003. www.prudential.com (800) 521-7466 Semiannual Report September 30, 2003 Series Facts As of 9/30/03 7-Day Net Asset Weighted Avg. Net Assets Current Yield Value (NAV) Maturity (WAM) (Millions) PILP Class A 1.01% $1.00 81 Days $ 367 PILP Class I* 1.06% $1.00 81 Days $1,705 iMoneyNet, Inc. Prime Institutional Universe Average** 0.72% N/A 56 Days N/A Note: Yields will fluctuate from time to time, and past performance is not indicative of future results. An investment in PILP is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although PILP seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in PILP. *Class I shares are not subject to distribution and service (12b-1) fees. **The iMoneyNet, Inc. Prime Institutional Universe Average is based on the average yield and WAM of all funds in the iMoneyNet, Inc. Prime Institutional Universe category. iMoneyNet, Inc. reports a 7-day current yield and WAM on Tuesdays. This is the data of all funds in the iMoneyNet, Inc. Prime Institutional Universe category as of September 30, 2003. Weighted Average Maturity Comparison (GRAPH) Past performance is not indicative of future results. The graph portrays weekly WAMs for PILP/Institutional Money Market Series and the iMoneyNet, Inc. Prime Institutional Universe Average every Tuesday from April 1, 2003 to September 30, 2003. 1 (LOGO) November 21, 2003 DEAR SHAREHOLDER, Recent stories in the media have painted an unflattering portrait of the mutual fund industry. There has also been press coverage of Prudential, almost all of which has been focused on former brokers of Prudential Securities.* As the manager of the Prudential Institutional Liquidity Portfolio, Inc./Institutional Money Market Series, we at Prudential Investments share your concern over these investigations. State and federal authorities have requested information regarding trading practices from many mutual fund companies from across the nation. Prudential Investments has been cooperating with those inquiries and, at the same time, participating in an internal review. This review includes activity by the investment professionals of Prudential-managed funds, as well as the policies, systems, and procedures of Prudential Financial's investment units and its proprietary distribution channels, including the former Prudential Securities. MARKET TIMING While market timing is not illegal, Prudential Investments has actively discouraged disruptive market timing, and for years, our mutual fund prospectuses have identified and addressed this issue. Our mutual fund business has established operating policies and procedures that are designed to detect and deter frequent trading activities deemed disruptive to the management of Prudential-managed mutual fund portfolios, and we have rejected numerous orders placed by market timers in the past. * Prudential Investments LLC, the manager of the Prudential Institutional Liquidity Portfolio, Inc./Institutional Money Market Series, and Prudential Investment Management Services, the distributor of the Series, are part of the Investment Management segment of Prudential Financial, Inc. and are separate legal entities from Prudential Securities, a retail brokerage firm formerly owned by Prudential Financial. In February 2003, Prudential Financial and Wachovia Corporation announced they were combining their retail brokerage forces. The transaction was completed in July 2003. Wachovia Corporation has a 62% interest in the new firm, which is now known as Wachovia Securities, and Prudential Financial owns the remaining 38%. 2 LATE TRADING SEC rules require that orders to purchase or redeem fund shares be received either by the fund or by an intermediary (such as a broker, financial adviser, or 401(k) record keeper) before the time at which the fund calculates its net asset value (normally 4:00 p.m., Eastern time) if they are to receive that day's price. While we can't be absolutely certain that no intermediary has accepted a late trade, our contracts with intermediaries require that they adhere to our prohibition on late trading. For more than 40 years Prudential has offered investors quality investment products, financial guidance, and responsive customer service. Today, as the manager of the Prudential Institutional Liquidity Portfolio, Inc./Institutional Money Market Series, we remain committed to this heritage and to the highest ethical principles in our investment practices. Sincerely, Judy A. Rice, President, Prudential Institutional Liquidity Portfolio, Inc./ Institutional Money Market Series 3 SEMIANNUAL REPORT SEPTEMBER 30, 2003 PRUDENTIAL INSTITUTIONAL LIQUIDITY PORTFOLIO, INC. - ------------------------------------------------------------------------------- FINANCIAL STATEMENTS <Page> Prudential Institutional Liquidity Portfolio, Inc. Institutional Money Market Series Portfolio of Investments as of September 30, 2003 (Unaudited) <Table> <Caption> Principal Amount (000) Description Value (Note 1) - -------------------------------------------------------------------------------------- Certificates of Deposit - Canadian 5.6% Canadian Imperial Bank of Commerce $ 42,000 1.075%, 12/15/03 $ 42,000,000 Toronto Dominion Bank 50,000 1.15%, 12/30/03 50,006,150 25,000 1.38%, 8/27/04 24,995,406 -------------- 117,001,556 - ------------------------------------------------------------------------------------- Certificates of Deposit - Eurodollar 1.2% HBOS Treasury Services PLC 24,000 1.07%, 11/12/03 23,999,116 - ------------------------------------------------------------------------------------- Certificates of Deposit - Yankee 20.4% Banco Bilbao Vizcaya Argentaria 20,000 1.20%, 8/27/04 20,000,000 Bayerische Landesbank 32,000 1.28%, 12/1/03 32,000,000 BNP Paribas 50,000 1.60%, 11/21/03 50,000,000 20,000 1.33%, 4/13/04 20,000,000 20,000 1.15%, 7/22/04 19,998,380 Credit Agricole Indosuez 20,000 1.23%, 8/4/04 19,998,310 30,000 1.38%, 8/5/04 30,007,608 Danske Bank 100,000 1.32%, 10/23/03 100,000,000 Dexia Bank 88,000 1.08%, 10/27/03 88,000,000 Landesbank Hessen - Thuringren 22,000 1.10%, 12/8/03 22,000,000 Royal Bank of Scotland PLC 20,000 1.35%, 4/19/04 20,000,000 -------------- 422,004,298 - ------------------------------------------------------------------------------------- Commercial Paper 22.0% Alliance & Leicester PLC 35,000 1.10%, 10/31/03 34,967,917 </Table> See Notes to Financial Statements 5 <Page> Prudential Institutional Liquidity Portfolio, Inc. Institutional Money Market Series Portfolio of Investments as of September 30, 2003 (Unaudited) Cont'd. <Table> <Caption> Principal Amount (000) Description Value (Note 1) - -------------------------------------------------------------------------------------- CXC LLC $ 22,200 1.10%, 12/5/03 $ 22,155,908 Danske Corp. 11,800 1.08%, 11/12/03 11,785,132 Den Norske Bank 18,000 1.105%, 12/29/03 17,950,828 Hamburgische Landesbank 25,000 1.28%, 10/8/03 24,993,778 35,000 1.32%, 10/17/03 34,979,466 New Center Asset Trust 38,097 1.09%, 12/9/03 38,017,409 Nordea North America, Inc. 26,000 1.07%, 10/27/03 25,979,908 53,000 1.09%, 11/3/03 52,947,044 Santander Central Hispano Finance, Inc. 38,000 1.12%, 3/15/04 37,803,751 Societe Generale 40,000 1.09%, 11/6/03 39,956,400 Sony Global Treasury Services 25,000 1.085%, 12/17/03 24,941,983 Stadshypotek Delaware, Inc. 30,000 1.08%, 11/17/03 29,957,700 SwedBank, Inc. 40,000 1.08%, 10/10/03 39,989,200 Tulip Funding Corp. 19,000 1.09%, 10/29/03 18,983,892 -------------- 455,410,316 - ------------------------------------------------------------------------------------- Other Corporate Obligations 28.9% American Express Centurion Bank 25,000 1.09%, 10/29/03(b) 24,998,559 American Express Credit Corp., MTN 23,000 1.15%, 10/6/03(b) 23,000,000 Cargill, Inc. 47,872 1.08%, 10/14/03 47,872,000 </Table> 6 See Notes to Financial Statements <Page> Prudential Institutional Liquidity Portfolio, Inc. Institutional Money Market Series Portfolio of Investments as of September 30, 2003 (Unaudited) Cont'd. <Table> <Caption> Principal Amount (000) Description Value (Note 1) - -------------------------------------------------------------------------------------- GE Capital Assurance Co. $ 26,000 1.20%, 10/22/03(b)(c) (cost $26,000,000, date purchased 7/22/03) $ 26,000,000 GE Capital Corp., MTN 70,000 1.15%, 10/9/03(b) 70,000,000 Goldman Sachs Group, Inc., MTN 78,000 1.29%, 12/15/03(b) 78,000,000 JP Morgan Chase & Co., MTN 15,000 1.23%, 11/24/03(b) 15,001,736 Merrill Lynch & Co., Inc., MTN 101,000 1.265%, 10/13/03(b) 101,000,000 MetLife Insurance Co. 12,000 1.22%, 10/24/03(b)(c) (cost $12,000,000, date purchased 10/24/02) 12,000,000 10,000 1.21875%, 11/7/03(b)(c) (cost $10,000,000, date purchased 2/07/03) 10,000,000 23,000 1.22%, 10/3/03(b)(c) (cost $23,000,000, date purchased 10/03/02) 23,000,000 Morgan Stanley, MTN 46,000 1.22%, 10/15/03(b) 46,000,000 Nyala Funding LLC 8,000 1.12%, 11/18/03 7,988,053 Pacific Life Insurance Co. 11,000 1.26%, 12/15/03(b)(c) (cost $11,000,000, date purchased 7/8/03) 11,000,000 Park Granada LLC 10,000 1.10%, 11/3/03 9,989,916 24,746 1.10%, 11/17/03 24,710,462 30,000 1.11%, 11/21/03 29,952,825 3,000 1.10%, 12/17/03 2,992,942 Travelers Insurance Co. 25,000 1.23%, 11/25/03(b)(c) (cost $25,000,000, date purchased 2/25/03) 25,000,000 United of Omaha Life Insurance Co. 10,000 1.31563%, 12/5/03(b)(c) (cost $10,000,000, date purchased 12/05/02) 10,000,000 -------------- 598,506,493 </Table> See Notes to Financial Statements 7 <Page> Prudential Institutional Liquidity Portfolio, Inc. Institutional Money Market Series Portfolio of Investments as of September 30, 2003 (Unaudited) Cont'd. <Table> <Caption> Principal Amount (000) Description Value (Note 1) - -------------------------------------------------------------------------------------- U.S. Government Agency 11.0% Federal Home Loan Bank $ 20,000 1.25%, 7/2/04 $ 20,000,000 Federal Home Loan Mortgage Corp. 23,232 1.03%, 12/5/03 23,188,795 25,000 1.04%, 12/24/03 24,939,333 10,000 1.295%, 4/22/04 9,926,617 35,000 1.43%, 9/3/04 35,000,000 25,000 1.40%, 9/10/04 25,000,000 Federal National Mortgage Association 15,000 5.625%, 5/14/04 15,390,665 9,000 6.50%, 8/15/04 9,411,904 20,000 1.47%, 9/22/04 20,000,000 25,000 1.50%, 9/24/04 24,997,687 20,000 1.35%, 10/22/04 20,000,000 -------------- 227,855,001 <Caption> Shares - -------------------------------------------------------------------------------- Mutual Fund 10.8% 224,000,273 Dryden Core Investment Fund - Taxable Money Market Series (Note 3) 224,000,273 -------------- Total Investments 99.9% (amortized cost $2,068,777,053(a)) 2,068,777,053 Other assets in excess of liabilities 0.1% 3,024,057 -------------- Net Assets 100% $2,071,801,110 -------------- -------------- </Table> - ------------------------------ (a) Federal income tax basis is the same as for financial reporting purposes. (b) Variable rate instrument. The maturity date presented for these instruments is the next date on which the rate of interest is adjusted. (c) Private placement, restricted as to resale and does not have a readily available market. The aggregate cost of such securities is $117,000,000. The aggregate value of $117,000,000 is 5.6% of net assets. MTN--Medium Term Note. 8 See Notes to Financial Statements <Page> Prudential Institutional Liquidity Portfolio, Inc. Institutional Money Market Series Portfolio of Investments as of September 30, 2003 (Unaudited) Cont'd. The industry classification of portfolio holdings and other assets in excess of liabilities shown as a percentage of net assets as of September 30, 2003 was as follows: Commercial Banks.................................................... 48.6% Federal Credit Agencies............................................. 11.0 Securities Brokers & Dealers........................................ 10.9 Mutual Fund......................................................... 10.8 Life Insurance...................................................... 5.6 Short-Term Business Credit.......................................... 3.4 Asset Backed Securities............................................. 3.2 Grain Mills Products................................................ 2.3 Phone Records, Tape, Disk........................................... 1.2 Financial Services.................................................. 1.1 Railroads........................................................... 1.1 Bank Holding Companies - Domestic................................... 0.7 ----- 99.9 Other assets in excess of liabilities............................... 0.1 ----- 100.0% ----- ----- See Notes to Financial Statements 9 <Page> Prudential Institutional Liquidity Portfolio, Inc. Institutional Money Market Series Statement of Assets and Liabilities (Unaudited) <Table> <Caption> September 30, 2003 - ---------------------------------------------------------------------------------------- ASSETS Investments, at amortized cost which approximates market value $ 2,068,777,053 Cash 2,170 Dividends and interest receivable 3,837,997 Prepaid expenses 27,554 ------------------- Total assets 2,072,644,774 ------------------- LIABILITIES Dividends payable 387,741 Management fee payable 217,537 Accrued expenses 201,425 Deferred directors' fees 20,992 Distribution fee payable 15,969 ------------------- Total liabilities 843,664 ------------------- NET ASSETS $ 2,071,801,110 ------------------- ------------------- Net assets were comprised of: Common stock, at par $ 2,071,801 Paid-in capital in excess of par 2,069,729,309 ------------------- Net assets, September 30, 2003 $ 2,071,801,110 ------------------- ------------------- Class A: Net asset value, offering and redemption price per share ($366,923,587 / 366,923,587 shares of $.001 par value common stock issued and outstanding) $1.00 ------------------- ------------------- Class I: Net asset value, offering and redemption price per share ($1,704,877,523 / 1,704,877,523 shares of $.001 par value common stock issued and outstanding) $1.00 ------------------- ------------------- </Table> 10 See Notes to Financial Statements <Page> Prudential Institutional Liquidity Portfolio, Inc. Institutional Money Market Series Statement of Operations (Unaudited) <Table> <Caption> Six Months Ended September 30, 2003 - ---------------------------------------------------------------------------------------- NET INVESTMENT INCOME Income Interest $11,618,215 Dividends 1,687,978 ------------------- 13,306,193 ------------------- Expenses Management fee 2,119,065 Distribution fee--Class A 253,127 Transfer agent's fees and expenses 123,000 Custodian's fees and expenses 101,000 Registration fees 43,000 Insurance expenses 28,000 Reports to shareholders 27,000 Legal fees and expenses 13,000 Audit fee 12,000 Directors' fees 12,000 Miscellaneous 8,044 ------------------- Total expenses 2,739,236 Less: Expense subsidy (Note 4) (367,044) Management fee waiver (Note 2) (529,766) Distribution fee waiver (Note 2) (147,658) ------------------- Net expenses 1,694,768 ------------------- Net investment income 11,611,425 ------------------- REALIZED GAIN ON INVESTMENTS Net realized gain on investment transactions 2,902 ------------------- NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS $11,614,327 ------------------- ------------------- </Table> See Notes to Financial Statements 11 <Page> Prudential Institutional Liquidity Portfolio, Inc. Institutional Money Market Series Statement of Changes in Net Assets (Unaudited) <Table> <Caption> Six Months Year Ended Ended September 30, 2003 March 31, 2003 - ----------------------------------------------------------------------------------- INCREASE (DECREASE) IN NET ASSETS Operations Net investment income $ 11,611,425 $ 56,631,927 Net realized gain on investment transactions 2,902 84,021 ------------------ ---------------- Net increase in net assets resulting from operations 11,614,327 56,715,948 ------------------ ---------------- Dividends and distributions (Note 1) Class A (2,235,642) (6,374,377) Class I (9,378,685) (50,341,571) ------------------ ---------------- (11,614,327) (56,715,948) ------------------ ---------------- Fund share transactions (net of conversions) (Note 5) Net proceeds from shares sold 7,012,782,837 19,835,004,263 Net asset value of shares issued in reinvestment of dividends and distributions 9,680,605 38,853,711 Cost of shares reacquired (7,104,349,820) (21,857,842,335) ------------------ ---------------- Net decrease in net assets from Fund share transactions (81,886,378) (1,983,984,361) ------------------ ---------------- Total decrease (81,886,378) (1,983,984,361) NET ASSETS Beginning of period 2,153,687,488 4,137,671,849 ------------------ ---------------- End of period $ 2,071,801,110 $ 2,153,687,488 ------------------ ---------------- ------------------ ---------------- </Table> 12 See Notes to Financial Statements <Page> Prudential Institutional Liquidity Portfolio, Inc. Institutional Money Market Series Notes to Financial Statements (Unaudited) Prudential Institutional Liquidity Portfolio, Inc. (the 'Fund') is registered under the Investment Company Act of 1940 as an open-end, management investment company. The Fund consists of two series--the Institutional Money Market Series (the 'Series') and the Liquid Assets Series. The Liquid Assets Series has not yet commenced operations. The investment objective of the Series is high current income consistent with the preservation of principal and liquidity. The Series invests primarily in money market instruments maturing in 13 months or less whose ratings are within the 2 highest ratings categories by a nationally recognized statistical rating organization or, if not rated, are of comparable quality. The ability of the issuers of the securities held by the Series to meet their obligations may be affected by economic developments in a specific industry or region. Note 1. Accounting Policies The following is a summary of significant accounting policies followed by the Fund, and the Series, in the preparation of its financial statements. Securities Valuation: Portfolio securities of the Series are valued at amortized cost, which approximates market value. The amortized cost method involves valuing a security at its cost on the date of purchase and thereafter assuming a constant amortization to maturity of any discount or premium. If the amortized cost method is determined not to represent fair value, the fair value shall be determined by or under the direction of the Board of Directors. Investments in mutual funds are valued at their net asset value as of the close of the New York Stock Exchange on the date of valuation. The Series held illiquid securities, including those which are restricted as to disposition under securities law ('restricted securities'). The restricted securities held by the Series at September 30, 2003 include registration rights under which the Series may demand registration by the issuer. Restricted securities, sometimes referred to as private placements, are valued pursuant to the valuation procedures noted above. Securities Transactions and Net Investment Income: Securities transactions are recorded on the trade date. Realized gains (losses) on sales of securities are calculated on the identified cost basis. Interest income including amortization of premium and accretion of discount on debt securities, as required, is recorded on the accrual basis. Expenses are recorded on the accrual basis, which may require the use of certain estimates by management. Net investment income (loss) (other than distribution fees, which are charged directly to the respective class) and realized gains (losses) are allocated daily to each 13 <Page> Prudential Institutional Liquidity Portfolio, Inc. Institutional Money Market Series Notes to Financial Statements (Unaudited) Cont'd. class of shares based upon the relative proportion of net assets of each class at the beginning of the day. Federal Income Taxes: For federal income tax purposes, each series in the Fund is treated as a separate taxpaying entity. It is the Series' policy to continue to meet the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute all of its taxable net income and capital gains, if any, to its shareholders. Therefore, no federal income tax provision is required. Dividends and Distributions: The Series declares daily dividends from net investment income and net realized short-term capital gains. Payment of dividends is made monthly. Income distributions and capital gain distributions are determined in accordance with federal income tax regulations which may differ from generally accepted accounting principles. Note 2. Agreements The Fund has a management agreement with Prudential Investments LLC ('PI'). Pursuant to this agreement, PI has responsibility for all investment advisory services and supervises the subadvisor's performance of such services. PI has entered into a subadvisory agreement with Prudential Investment Management, Inc. ('PIM'). The subadvisory agreement provides that PIM will furnish investment advisory services in connection with the management of the Series. In connection therewith, PIM is obligated to keep certain books and records of the Series. PI pays for the services of PIM, the cost of compensation of officers of the Series, occupancy and certain clerical and bookkeeping costs of the Series. The Series bears all other costs and expenses. The management fee paid to PI is computed daily and payable monthly, at an annual rate of .20 of 1% of the average daily net assets of the Series. PI has agreed to waive a portion (.05 of 1% of the Series' average daily net assets) of its management fee, which amounted to $529,766 ($.0003 per share) for the six months ended September 30, 2003. The Series is not required to reimburse PI for such waiver. The Series has a distribution agreement with Prudential Investment Management Services LLC ('PIMS'), which acts as the distributor of the Series' Class A and Class I shares. The Series compensates PIMS for distributing and servicing the Series' Class A shares, pursuant to the plan of distribution at an annual rate of .12 of 1% of the Series' average daily net assets of the Class A shares. PIMS has agreed to waive a portion (.07 of 1% of the Series' average daily net assets of the Class A shares) of the distribution fee, which amounted to $147,658 ($.0004 per Class A share) for the six months ended September 30, 2003. The Series is not required to reimburse PIMS for such waiver. The Class A distribution fee is accrued daily and payable monthly. No 14 <Page> Prudential Institutional Liquidity Portfolio, Inc. Institutional Money Market Series Notes to Financial Statements (Unaudited) Cont'd. distribution or service fees are paid to PIMS as distributor of the Class I shares of the Series. PI, PIM and PIMS are indirect, wholly-owned subsidiaries of Prudential Financial, Inc. ('Prudential'). Note 3. Other Transactions with Affiliates Prudential Mutual Fund Services LLC ('PMFS'), an affiliate of PI and an indirect, wholly-owned subsidiary of Prudential, serves as the Fund's transfer agent. During the six months ended September 30, 2003, the Series incurred fees of $120,000 for the services of PMFS. As of September 30, 2003, $20,000 of such fees were due to PMFS. Transfer agent's fees and expenses in the Statement of Operations include certain out-of-pocket expenses paid to nonaffiliates, where applicable. The Series invests in the Taxable Money Market Series (the 'Portfolio'), a portfolio of the Dryden Core Investment Fund, pursuant to an exemptive order received from the Securities and Exchange Commission. The Portfolio is a money market mutual fund registered under the Investment Company Act of 1940, as amended, and managed by PI. During the six months ended September 30, 2003, the Series earned income of $1,687,978 from the Portfolio. Note 4. Expense Subsidy PI has contractually agreed to subsidize operating expenses so that total Series operating expenses do not exceed .20% and .15% of the average daily net assets of the Class A and Class I shares, respectively. For the six months ended September 30, 2003, such reimbursement amounted to $367,044 ($.0002 per share for Class A and I shares; 0.02% of the Series' average daily net assets). Note 5. Capital The Series offers Class A and Class I shares. Class A shareholders of the Series who satisfy the minimum purchase requirements to purchase Class I shares will have their Class A shares exchanged for Class I shares on a quarterly basis. There are 10 billion authorized shares of common stock, $.001 par value per share, divided into 5 billion authorized Class A shares and 5 billion authorized Class I shares. As of September 30, 2003 Prudential owned 15,833,084 Class A shares and 329,247,614 Class I shares. 15 <Page> Prudential Institutional Liquidity Portfolio, Inc. Institutional Money Market Series Notes to Financial Statements (Unaudited) Cont'd. Transactions in shares of common stock (at $1 per share) were as follows: <Table> <Caption> Shares and Class A Dollar Amount - ------------------------------------------------------------------- ---------------- Six months ended September 30, 2003: Shares sold 491,819,451 Shares issued in reinvestment of dividends and distributions 2,171,575 Shares reacquired (479,857,815) ---------------- Net increase (decrease) in shares outstanding before conversion 14,133,211 Shares reacquired upon conversion into Class I (86,992,408) ---------------- Net increase (decrease) in shares outstanding (72,859,197) ---------------- ---------------- Year ended March 31, 2003: Shares sold 735,565,310 Shares issued in reinvestment of dividends and distributions 6,255,879 Shares reacquired (678,945,845) ---------------- Net increase (decrease) in shares outstanding before conversion 62,875,344 Shares reacquired upon conversion into Class I (56,094,014) ---------------- Net increase (decrease) in shares outstanding 6,781,330 ---------------- ---------------- <Caption> Class I - ------------------------------------------------------------------- Six months ended September 30, 2003: Shares sold 6,520,963,386 Shares issued in reinvestment of dividends and distributions 7,509,030 Shares reacquired (6,624,492,005) ---------------- Net increase (decrease) in shares outstanding before conversion (96,019,589) Shares issued upon conversion from Class A 86,992,408 ---------------- Net increase (decrease) in shares outstanding (9,027,181) ---------------- ---------------- Year ended March 31, 2003: Shares sold 19,099,438,953 Shares issued in reinvestment of dividends and distributions 32,597,832 Shares reacquired (21,178,896,490) ---------------- Net increase (decrease) in shares outstanding before conversion (2,046,859,705) Shares issued upon conversion from Class A 56,094,014 ---------------- Net increase (decrease) in shares outstanding (1,990,765,691) ---------------- ---------------- </Table> 16 <Page> SEMIANNUAL REPORT SEPTEMBER 30, 2003 PRUDENTIAL INSTITUTIONAL LIQUIDITY PORTFOLIO, INC. - ---------------------------------------------------------------------------- FINANCIAL HIGHLIGHTS <Page> Prudential Institutional Liquidity Portfolio, Inc. Institutional Money Market Series Financial Highlights (Unaudited) <Table> <Caption> Class A ------------------------- Six Months Ended September 30, 2003 - ---------------------------------------------------------------------------------------- PER SHARE OPERATING PERFORMANCE: Net asset value, beginning of period $ 1.00 ---------- Net investment income and net realized gains(b) .005 Dividends and distributions to shareholders (.005) ---------- Net asset value, end of period $ 1.00 ---------- ---------- TOTAL RETURN(a): .54% RATIOS/SUPPLEMENTAL DATA: Net assets, end of period (000) $ 366,924 Average net assets (000) $ 421,878 Ratios to average net assets: Expenses, including distribution fee(b) .20%(d) Expenses, excluding distribution fee(c) .15%(d) Net investment income(b) 1.06%(d) </Table> - ------------------------------ (a) Total return is calculated assuming a purchase of shares on the first day and a sale on the last day of each period reported and includes reinvestment of dividends and distributions. Total returns for less than a full year are not annualized. (b) Net of management and distribution fee waiver/expense subsidy (Notes 2 and 4). (c) Net of management fee waiver/expense subsidy (Notes 2 and 4). (d) Annualized. 18 See Notes to Financial Statements <Page> Prudential Institutional Liquidity Portfolio, Inc. Institutional Money Market Series Financial Highlights (Unaudited) Cont'd. <Table> <Caption> Class A - ------------------------------------------------------------------ Year Ended March 31, - ------------------------------------------------------------------ 2003 2002 2001 2000 1999 - ------------------------------------------------------------------ $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 - -------- -------- -------- -------- -------- .016 .031 .062 .053 .053 (.016) (.031) (.062) (.053) (.053) - -------- -------- -------- -------- -------- $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 - -------- -------- -------- -------- -------- - -------- -------- -------- -------- -------- 1.61% 3.34% 6.43% 5.38% 5.39% $439,783 $433,001 $468,287 $371,866 $361,167 $402,953 $468,805 $417,250 $366,127 $247,471 .20% .20% .20% .20% .20% .15% .15% .15% .15% .15% 1.58% 3.23% 6.23% 5.27% 5.20% </Table> See Notes to Financial Statements 19 <Page> Prudential Institutional Liquidity Portfolio, Inc. Institutional Money Market Series Financial Highlights (Unaudited) Cont'd. <Table> <Caption> Class I ------------------------- Six Months Ended September 30, 2003 - ---------------------------------------------------------------------------------------- PER SHARE OPERATING PERFORMANCE: Net asset value, beginning of period $ 1.00 ------------------- Net investment income and net realized gains(b) .006 Dividends and distributions to shareholders (.006) ------------------- Net asset value, end of period $ 1.00 ------------------- ------------------- TOTAL RETURN(a): .56% RATIOS/SUPPLEMENTAL DATA: Net assets, end of period (000) $ 1,704,878 Average net assets (000) $ 1,697,186 Ratios to average net assets: Expenses, including distribution fee(b) .15%(c) Expenses, excluding distribution fee(b) .15%(c) Net investment income(b) 1.10%(c) </Table> - ------------------------------ (a) Total return is calculated assuming a purchase of shares on the first day and a sale on the last day of each period reported and includes reinvestment of dividends and distributions. Total returns for less than a full year are not annualized. (b) Net of management fee waiver/expense subsidy (Notes 2 and 4). (c) Annualized. 20 See Notes to Financial Statements <Page> Prudential Institutional Liquidity Portfolio, Inc. Institutional Money Market Series Financial Highlights (Unaudited) Cont'd. <Table> <Caption> Class I - ---------------------------------------------------------------------------- Year Ended March 31, - ---------------------------------------------------------------------------- 2003 2002 2001 2000 1999 - ---------------------------------------------------------------------------- $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 - ---------- ---------- ---------- ---------- ---------- .016 .032 .062 .053 .053 (.016) (.032) (.062) (.053) (.053) - ---------- ---------- ---------- ---------- ---------- $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 - ---------- ---------- ---------- ---------- ---------- - ---------- ---------- ---------- ---------- ---------- 1.66% 3.39% 6.48% 5.43% 5.45% $1,713,905 $3,704,670 $2,092,210 $1,601,631 $1,750,229 $2,982,413 $3,729,340 $2,130,657 $1,643,961 $1,470,082 .15% .15% .15% .15% .15% .15% .15% .15% .15% .15% 1.69% 3.05% 6.28% 5.30% 5.26% </Table> See Notes to Financial Statements 21 www.prudential.com (800) 521-7466 FOR MORE INFORMATION Prudential Institutional Liquidity Portfolio, Inc. Gateway Center Three 100 Mulberry Street Newark, NJ 07102 (800) 521-7466 Directors David E.A. Carson Robert F. Gunia Robert E. La Blanc Douglas H. McCorkindale Stephen P. Munn Richard A. Redeker Judy A. Rice Robin B. Smith Stephen D. Stoneburn Clay T. Whitehead Officers Judy A. Rice, President Robert F. Gunia, Vice President Grace C. Torres, Treasurer and Principal Financial and Accounting Officer Marguerite E.H. Morrison, Chief Legal Officer and Assistant Secretary Jonathan D. Shain, Secretary Maryanne Ryan, Anti-Money Laundering Compliance Officer Manager Prudential Investments LLC Gateway Center Three 100 Mulberry Street Newark, NJ 07102 Investment Adviser Prudential Investment Management, Inc. Gateway Center Two 100 Mulberry Street Newark, NJ 07102 Distributor Prudential Investment Management Services LLC Gateway Center Three, 14th Floor 100 Mulberry Street Newark, NJ 07102 Custodian State Street Bank and Trust Company One Heritage Drive North Quincy, MA 02171 Transfer Agent Prudential Mutual Fund Services LLC PO Box 8098 Philadelphia, PA 19101 Independent Accountants KPMG LLP 757 Third Avenue New York, NY 10017 Legal Counsel Sullivan & Cromwell LLP 125 Broad Street New York, NY 10004 Fund Symbols Nasdaq CUSIP Class A PIMXX 744350109 Class I PLPXX 744350604 The views expressed in this report and information about the Series' portfolio holdings are for the period covered by this report and are subject to change thereafter. The accompanying financial statements as of September 30, 2003, were not audited, and accordingly, no opinion is expressed on them. Mutual Funds: ARE NOT INSURED BY THE FDIC OR ANY FEDERAL GOVERNMENT AGENCY MAY LOSE VALUE ARE NOT A DEPOSIT OF OR GUARANTEED BY ANY BANK OR ANY BANK AFFILIATE (LOGO) Fund Symbols Nasdaq CUSIP Class A PIMXX 744350109 Class I PLPXX 744350604 MF137E2 IFS-A085722 Item 2 -- Code of Ethics--Not required as this is not an annual filing. Item 3 -- Audit Committee Financial Expert -- The registrant's Board has determined that Mr. Stephen Munn, member of the Board's Audit Committee is an "audit committee financial expert," and that he is "independent," for purposes of this Item. Item 4 -- Principal Accountant Fees and Services--Not required in this filing Item 5 -- Reserved Item 6 -- Reserved Item 7 -- Disclosure of Proxy Voting Policies and Procedures for Closed- End Management Investment Companies -- Not required in this filing Item 8 -- Reserved Item 9 -- Controls and Procedures (a) It is the conclusion of the registrant's principal executive officer and principal financial officer that the effectiveness of the registrant's current disclosure controls and procedures (such disclosure controls and procedures having been evaluated within 90 days of the date of this filing) provide reasonable assurance that the information required to be disclosed by the registrant has been recorded, processed, summarized and reported within the time period specified in the Commission's rules and forms and that the information required to be disclosed by the registrant has been accumulated and communicated to the registrant's principal executive officer and principal financial officer in order to allow timely decisions regarding required disclosure. (b) There have been no significant changes in the registrant's internal controls or in other factors that could significantly affect these controls subsequent to the date of their evaluation, including any corrective actions with regard to significant deficiencies and material weaknesses. Item 10 -- Exhibits (a) Code of Ethics -- Not applicable with semi-annual filing (b) Certifications pursuant to Sections 302 and 906 of the Sarbanes-Oxley Act -- Attached hereto SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. (Registrant) Prudential Institutional Liquidity Portfolio, Inc. By (Signature and Title)* /s/Jonathan D. Shain -------------------- Jonathan D. Shain Secretary Date November 24, 2003 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. By (Signature and Title)* /s/Judy A. Rice -------------------- Judy A. Rice President and Principal Executive Officer Date November 24, 2003 By (Signature and Title)* /s/Grace C. Torres ------------------ Grace C. Torres Treasurer and Principal Financial Officer Date November 24, 2003 * Print the name and title of each signing officer under his or her signature.