Item 1. Report to Shareholders T. Rowe Price Health Sciences Portfolio Certified Financials Financial Highlights - -------------------------------------------------------------------------------- T. Rowe Price Health Sciences Portfolio - -------------------------------------------------------------------------------- Certified Financials (Unaudited) For a share outstanding throughout each period ------------------------------------------------------ Health Sciences shares 6 Months Year 12/29/00 Ended Ended Through 6/30/03 12/31/02 12/31/01 - -------------------------------------------------------------------------------- NET ASSET VALUE Beginning of period $ 6.56 $ 9.12 $ 10.00 Investment activities Net investment income (loss) (0.02) (0.04) (0.03) Net realized and unrealized gain (loss) 1.56 (2.52) (0.85) Total from investment activities 1.54 (2.56) (0.88) NET ASSET VALUE End of period $ 8.10 $ 6.56 $ 9.12 ----------------------------------------------------- Ratios/Supplemental Data Total return^ 23.48% (28.07)% (8.75)% Ratio of total expenses to average net assets 0.95%! 0.95% 0.95% Ratio of net investment income (loss) to average net assets (0.52)%! (0.55)% (0.42)% Portfolio turnover rate 46.2%! 62.2% 81.1% Net assets, end of period (in thousands) $ 5,130 $ 3,564 $ 4,671 ^ Total return reflects the rate that an investor would have earned on an investment in the fund during each period, assuming reinvestment of all distributions. ! Annualized The accompanying notes are an integral part of these financial statements. Financial Highlights - -------------------------------------------------------------------------------- T. Rowe Price Health Sciences Portfolio - -------------------------------------------------------------------------------- Certified Financials (Unaudited) For a share outstanding throughout each period - -------------------------------------------------------------------------------- Health Sciences-II shares 6 Months 4/30/02 Ended Through 6/30/03 12/31/02 - -------------------------------------------------------------------------------- NET ASSET VALUE Beginning of period $ 6.55 $ 7.96 Investment activities Net investment income (loss) (0.03) (0.03) Net realized and unrealized gain (loss) 1.56 (1.38) Total from investment activities 1.53 (1.41) NET ASSET VALUE End of period $ 8.08 $ 6.55 -------------------------------- Ratios/Supplemental Data Total return^ 23.36% (17.71)% Ratio of total expenses to average net assets 1.20%! 1.20%! Ratio of net investment income (loss) to average net assets (0.77)%! (0.75)%! Portfolio turnover rate 46.2%! 62.2% Net assets, end of period (in thousands) $ 102 $ 82 ^ Total return reflects the rate that an investor would have earned on an investment in the fund during each period, assuming reinvestment of all distributions. ! Annualized The accompanying notes are an integral part of these financial statements. Statement of Net Assets - -------------------------------------------------------------------------------- T. Rowe Price Health Sciences Portfolio - -------------------------------------------------------------------------------- Certified Financials June 30, 2003 (Unaudited) Shares Value - -------------------------------------------------------------------------------- In thousands COMMON STOCKS 99.5% BIOTECHNOLOGY 39.8% International Biotechnology 0.4% Actelion (CHF) * 310 $ 21 21 Other Biotechnology 3.9% Alexion Pharmaceutical * 1,220 21 Amylin Pharmaceuticals * 1,390 30 Cubist Pharmaceuticals * 3,200 34 Esperion Therapeutics * 1,230 24 Exelixis * 4,700 33 Ligand Pharmaceuticals, Class B * 1,410 19 NeoRx * 1,700 6 Regeneron Pharmaceuticals * 860 13 Tularik * 530 5 Vicuron Pharmaceuticals * 1,050 15 ViroPharma * 900 2 XOMA * 300 2 204 U.S. Major-Biotechnology 35.5% Abgenix *!! 2,750 29 Alkermes * 6,470 70 Amgen *!! 3,830 254 Biogen *!! 400 15 Cephalon * 4,230 174 CV Therapeutics * 1,600 47 Genentech *!! 1,310 95 Gilead Sciences *!! 5,050 281 Human Genome Sciences * 2,280 29 IDEC Pharmaceuticals *!! 3,008 102 Imclone Systems *!! 2,380 75 Medicines Company *!! 3,860 76 MedImmune *!! 3,710 135 Millennium Pharmaceuticals * 2,400 38 Neurocrine Biosciences *!! 2,061 103 NPS Pharmaceuticals * 2,900 71 OSI Pharmaceuticals * 1,100 35 Protein Design Labs * 900 13 Transkaryotic Therapies * 1,720 20 Trimeris *!! 3,700 169 Vertex Pharmaceuticals * 1,800 26 1,857 Total Biotechnology 2,082 LIFE SCIENCES 1.3% Life Sciences 1.3% Invitrogen * 320 12 Symyx Technologies * 2,400 39 Waters Corporation *!! 600 18 Total Life Sciences 69 PHARMACEUTICALS 24.4% International Pharmaceuticals 1.0% Fujisawa Pharmaceutical (JPY) 500 9 Sanofi-Synthelabo (EUR) 750 44 53 U.S. Major- Pharmaceutical 23.4% Abbott Laboratories !! 2,600 114 Allergan !! 1,350 104 AstraZeneca ADR 900 37 Barr Laboratories * 800 52 Biovail *!! 1,800 85 Eli Lilly !! 1,245 86 Forest Laboratories *!! 2,300 126 Johnson & Johnson 1,180 61 Noven Pharmaceuticals * 1,800 18 Pfizer 7,028 240 Salix Pharmaceuticals * 2,900 30 Schering-Plough 1,515 28 Teva Pharmaceutical ADR !! 1,700 97 Wyeth !! 3,240 148 1,226 Total Pharmaceuticals 1,279 PRODUCTS & DEVICES 7.3% Implants 7.3% Advanced Neuromodulation Systems * 750 39 Aspect Medical Systems * 2,400 17 Baxter International 260 7 Biomet 560 16 Boston Scientific * 2,260 138 C. R. Bard 700 50 CTI Molecular Imaging * 100 2 EPIX Medical * 1,700 24 Fischer Imaging * 2,800 14 Medtronic 300 14 St. Jude Medical * 710 41 Stryker 300 21 Total Products & Devices 383 SERVICES 21.8% Distribution 5.7% AmerisourceBergen !! 540 $ 37 Cardinal Health !! 1,150 74 Omnicare !! 5,470 185 296 Other Services 1.2% Laboratory Corporation of America * 2,150 65 65 Payors 13.2% Anthem *!! 3,600 278 UnitedHealth Group 5,600 281 WellPoint Health Networks * 1,530 129 688 Providers 1.7% Davita * 700 19 HCA !! 1,260 40 Triad Hospitals * 1,270 32 91 Total Services 1,140 Total Miscellaneous Common Stocks 4.9% 257 Total Common Stocks (Cost $4,565) 5,210 OPTIONS WRITTEN (1.6%) Abbott Laboratories Call, 11/22/2003 @ $47.50 * (400) (1) Abgenix Call, 7/19/2003 @ $12.50 * (300) 0 Allergan Call, 10/18/2003 @ $85.00 * (100) 0 Call, 7/19/2003 @ $80.00 * (300) (1) AmerisourceBergen Call, 8/16/2003 @ $55.00 * (200) (3) Call, 8/16/2003 @ $60.00 * (300) (3) Amgen Call, 10/18/2003 @ $65.00 * (600) (3) Call, 7/19/2003 @ $60.00 * (1,200) (7) Call, 7/19/2003 @ $65.00 * (800) (2) Put, 7/19/2003 @ $60.00 * (100) 0 Put, 7/19/2003 @ $65.00 * (300) 0 Amylin Pharmaceuticals Put, 10/18/2003 @ $25.00 * (200) (1) Anthem Call, 9/20/2003 @ $70.00 * (100) (1) Put, 9/20/2003 @ $70.00 * (100) 0 Baxter International Put, 1/17/2004 @ $25.00 * (300) (1) Biogen Call, 10/18/2003 @ $40.00 * (300) (1) Put, 10/18/2003 @ $40.00 * (200) (1) Biovail, Call, 7/19/2003 @ $50.00 * (300) 0 Boston Scientific Put, 11/22/2003 @ $65.00 * (300) (2) Put, 8/16/2003 @ $65.00 * (100) (1) Bristol-Meyers Squibb Put, 1/17/2004 @ $25.00 * (200) 0 Put, 1/17/2004 @ $30.00 * (500) (2) Cardinal Health Call, 8/16/2003 @ $65.00 * (100) 0 Call, 9/20/2003 @ $60.00 * (200) (1) Call, 9/20/2003 @ $70.00 * (400) (1) Cephalon Put, 1/17/2004 @ $40.00 * (100) (1) Put, 11/22/2003 @ $40.00 * (100) 0 Eli Lilly Call, 10/18/2003 @ $75.00 * (200) (1) Call, 7/19/2003 @ $55.00 * (300) (4) Call, 7/19/2003 @ $60.00 * (100) (1) Call, 7/19/2003 @ $65.00 * (300) (1) Call, 7/19/2003 @ $70.00 * (100) 0 Forest Laboratories Call, 11/22/2003 @ $55.00 * (300) (2) Call, 11/22/2003 @ $60.00 * (100) 0 Call, 8/16/2003 @ $57.50 * (100) 0 Call, 8/16/2003 @ $60.00 * (100) 0 Put, 11/22/2003 @ $50.00 * (100) 0 Put, 8/16/2003 @ $50.00 * (100) 0 Genentech Call, 7/19/2003 @ $75.00 * (100) 0 Call, 7/19/2003 @ $80.00 * (600) (1) Put, 1/17/2004 @ $55.00 * (500) (1) Put, 1/17/2004 @ $60.00 * (300) (1) Put, 1/17/2004 @ $65.00 * (300) (2) Put, 7/19/2003 @ $70.00 * (100) 0 Gilead Sciences Call, 7/19/2003 @ $55.00 * (100) 0 Call, 7/19/2003 @ $60.00 * (200) 0 Call, 8/16/2003 @ $45.00 * (200) (3) Put, 7/19/2003 @ $50.00 * (100) 0 Put, 8/16/2003 @ $50.00 * (100) 0 Guidant Put, 1/17/2004 @ $40.00 * (100) $ 0 Put, 1/17/2004 @ $45.00 * (200) (1) HCA, Call, 8/16/2003 @ $35.00 * (300) 0 IDEC Pharmaceuticals Call, 10/18/2003 @ $40.00 * (300) 0 Call, 7/19/2003 @ $35.00 * (100) 0 Call, 7/19/2003 @ $40.00 * (600) 0 Call, 8/16/2003 @ $40.00 * (600) (1) Put, 10/18/2003 @ $35.00 * (100) (1) Put, 7/19/2003 @ $40.00 * (300) (2) Imclone Systems Call, 8/16/2003 @ $22.50 * (100) (1) Put, 8/16/2003 @ $30.00 * (100) 0 Invitrogen Put, 11/22/2003 @ $40.00 * (100) (1) Medicines Company Call, 7/19/2003 @ $20.00 * (200) 0 MedImmune Call, 12/20/2003 @ $42.50 * (200) 0 Call, 9/20/2003 @ $37.50 * (1,700) (4) Call, 9/20/2003 @ $40.00 * (600) (1) Put, 7/19/2003 @ $35.00 * (100) 0 Put, 9/20/2003 @ $35.00 * (100) 0 Merck, Put, 1/17/2004 @ $55.00 * (100) 0 Millennium Pharmaceuticals Put, 11/22/2003 @ $17.50 * (100) (1) Neurocrine Biosciences Call, 11/22/2003 @ $60.00 * (100) 0 Call, 8/16/2003 @ $50.00 * (400) (2) Call, 8/16/2003 @ $60.00 * (200) 0 Put, 8/16/2003 @ $50.00 * (100) 0 Omnicare Call, 9/20/2003 @ $35.00 * (300) 0 Teva Pharmaceutical Call, 9/20/2003 @ $45.00 * (300) (4) Trimeris Call, 10/18/2003 @ $50.00 * (600) (1) Call, 10/18/2003 @ $55.00 * (400) 0 Call, 7/19/2003 @ $45.00 * (200) (0) Universal Health Services Put, 10/18/2003 @ $45.00 * (600) (4) Waters Corporation Call, 8/16/2003 @ $25.00 * (300) (1) Wyeth Call, 10/18/2003 @ $40.00 * (1,000) (7) Call, 7/19/2003 @ $40.00 * (600) (3) Put, 10/18/2003 @ $45.00 * (100) 0 Total Options Written (Cost $(63)) (85) SHORT-TERM INVESTMENTS 2.6% Money Market Funds 2.6% T. Rowe Price Reserve Investment Fund, 1.16% # 136,092 136 Total Short-Term Investments (Cost $136) 136 Total Investments in Securities 100.5% of Net Assets (Cost $4,638) $ 5,261 Other Assets Less Liabilities (29) NET ASSETS $ 5,232 --------- Net Assets Consist of: Undistributed net investment income (loss) $ (11) Undistributed net realized gain (loss) (1,054) Net unrealized gain (loss) 623 Paid-in-capital applicable to 645,606 shares of $0.0001 par value capital stock outstanding; 1,000,000,000 shares of the Corporation authorized 5,674 NET ASSETS $ 5,232 --------- NET ASSET VALUE PER SHARE Health Sciences Portfolio-shares ($5,130,216/633,043 shares outstanding) $ 8.10 - ----------- ------- --------- Health Sciences Portfolio-II shares ($101,529/12,563 shares outstanding) $ 8.08 - --------- ------ --------- # Seven-day yield * Non-income producing !! All or a portion of this security is pledged to cover written call options at June 30, 2003--See Note 2. ADR American Depository Receipts CHF Swiss franc EUR Euro JPY Japanese yen The accompanying notes are an integral part of these financial statements. Statement of Operations - -------------------------------------------------------------------------------- T. Rowe Price Health Sciences Portfolio - -------------------------------------------------------------------------------- Certified Financials (Unaudited) In thousands 6 Months Ended 6/30/03 - -------------------------------------------------------------------------------- Investment Income (Loss) Income Dividend $ 8 Income distributions from mutual funds 1 Total income 9 Investment management and administrative expense 20 Net investment income (loss) (11) Realized and Unrealized Gain (Loss) Net realized gain (loss) Securities (214) Written options (3) Net realized gain (loss) (217) Change in net unrealized gain (loss) Securities 1,153 Written options (14) Change in net unrealized gain (loss) 1,139 Net realized and unrealized gain (loss) 922 INCREASE (DECREASE) IN NET ASSETS FROM OPERATIONS $ 911 ---------- The accompanying notes are an integral part of these financial statements. Statement of Changes in Net Assets - -------------------------------------------------------------------------------- T. Rowe Price Health Sciences Portfolio - -------------------------------------------------------------------------------- Certified Financials (Unaudited) In thousands 6 Months Year Ended Ended 6/30/03 12/31/02 - -------------------------------------------------------------------------------- Increase (Decrease) in Net Assets Operations Net investment income (loss) $ (11) $ (22) Net realized gain (loss) (217) (481) Change in net unrealized gain (loss) 1,139 (857) Increase (decrease) in net assets from operations 911 (1,360) Capital share transactions * Shares sold Health Sciences shares 797 999 Health Sciences-II shares -- 100 Shares redeemed Health Sciences shares (122) (764) Increase (decrease) in net assets from capital share transactions 675 335 Net Assets Increase (decrease) during period 1,586 (1,025) Beginning of period 3,646 4,671 End of period $ 5,232 $ 3,646 -------------------------------- *Share information Shares sold Health Sciences shares 108 132 Health Sciences-II shares -- 13 Shares redeemed Health Sciences shares (18) (101) Increase (decrease) in shares outstanding 90 44 The accompanying notes are an integral part of these financial statements. Notes to Financial Statements - -------------------------------------------------------------------------------- T. Rowe Price Health Sciences Portfolio - -------------------------------------------------------------------------------- Certified Financials June 30, 2003 (Unaudited) NOTE 1 - SIGNIFICANT ACCOUNTING POLICIES T. Rowe Price Equity Series, Inc. (the corporation) is registered under the Investment Company Act of 1940 (the 1940 Act). The Health Sciences Portfolio (the fund) is a diversified, open-end management investment company and is one of the portfolios established by the corporation. The fund seeks long-term capital appreciation. Shares of the fund are currently offered only through certain insurance companies as an investment medium for both variable annuity contracts and variable life insurance policies. The fund has two classes of shares: Health Sciences Portfolio (Health Sciences class), offered since December 29, 2000, and Health Sciences Portfolio-II, offered since April 30, 2002. Health Sciences-II sells its shares only through financial intermediaries, which it compensates for distribution and certain administrative services under a Board-approved Rule 12b-1 plan. Each class has exclusive voting rights on matters related solely to that class, separate voting rights on matters that relate to both classes, and, in all other respects, the same rights and obligations as the other class. The accompanying financial statements were prepared in accordance with accounting principles generally accepted in the United States of America, which require the use of estimates made by fund management. Valuation Investments are valued at the close of the New York Stock Exchange (NYSE), normally 4 p.m. ET, each day that the NYSE is open for business. Equity securities listed or regularly traded on a securities exchange or in the over-the-counter market are valued at the last quoted sale price, or official closing price for certain markets, at the time the valuations are made. A security that is listed or traded on more than one exchange is valued at the quotation on the exchange determined to be the primary market for such security. Listed securities not traded on a particular day are valued at the mean of the latest bid and ask prices for domestic securities and the last quoted sale price for international securities. Investments in mutual funds are valued at the closing net asset value per share of the mutual fund on the day of valuation. Purchased and written options are valued at the mean of the closing bid and ask prices. Other investments and those for which the above valuation procedures are inappropriate or are deemed not to reflect fair value are stated at fair value as determined in good faith by or under the supervision of the officers of the fund, as authorized by the Board of Directors. Most foreign markets close before the NYSE. Developments that could affect the values of securities that occur between the close of a foreign market and the close of the NYSE normally will not be reflected in security valuations. However, if such developments are so significant that they will, in the judgment of the officers of the fund, clearly and materially affect the value of securities, the previous closing prices may be adjusted to reflect the fair value of the securities as of the close of the NYSE, as determined in good faith by or under the supervision of the officers of the fund, as authorized by the Board of Directors. Currency Translation Assets, including investments, and liabilities denominated in foreign currencies are translated into U.S. dollar values each day at the prevailing exchange rate, using the mean of the bid and ask prices of such currencies against U.S. dollars as quoted by a major bank. Purchases and sales of securities, income, and expenses are translated into U.S. dollars at the prevailing exchange rate on the date of the transaction. The effect of changes in foreign currency exchange rates on realized and unrealized security gains and losses is reflected as a component of such gains and losses. Class Accounting Health Sciences-II pays distribution and administrative expenses in the form of Rule 12b-1 fees, in an amount not exceeding 0.25% of the class's average net assets. Management and administrative fee expense, investment income, and realized and unrealized gains and losses are allocated to the classes based upon the relative daily net assets of each class. Income distributions are declared and paid by each class on an annual basis. Capital gain distributions, if any, are declared and paid by the fund, typically on an annual basis. Other Income and expenses are recorded on the accrual basis. Investment transactions are accounted for on the trade date. Realized gains and losses are reported on the identified cost basis. Dividend income and distributions to shareholders are recorded by the fund on the ex-dividend date. NOTE 2 - INVESTMENT TRANSACTIONS Consistent with its investment objective, the fund engages in the following practices to manage exposure to certain risks or enhance performance. The investment objective, policies, program, and risk factors of the fund are described more fully in the fund's prospectus and Statement of Additional Information. Options Call and put options give the holder the right to purchase or sell, respectively, a security at a specified price on a certain date. Risks arise from possible illiquidity of the options market and from movements in security values. Options are reflected in the accompanying Statement of Net Assets at market value. Transactions in options written and related premiums received during the six months ended June 30, 2003, were as follows: - -------------------------------------------------------------------------------- Number of Contracts Premiums - -------------------------------------------------------------------------------- Outstanding at beginning of period 152 $ 26,000 Written 590 137,000 Expired (63) (6,000) Closed (442) (94,000) Outstanding at end of period 237 $ 63,000 ------------------------------ - -------------------------------------------------------------------------------- Other Purchases and sales of portfolio securities, other than short-term securities, aggregated $1,581,000 and $951,000, respectively, for the six months ended June 30, 2003. NOTE 3 - FEDERAL INCOME TAXES No provision for federal income taxes is required since the fund intends to continue to qualify as a regulated investment company and distribute to shareholders all of its taxable income and gains. Federal income tax regulations differ from generally accepted accounting principles; therefore, distributions determined in accordance with tax regulations may differ in amount or character from net investment income and realized gains for financial reporting purposes. Financial reporting records are adjusted for permanent book/tax differences to reflect tax character. Temporary differences are not adjusted. The amount and character of tax-basis distributions and composition of net assets are finalized at fiscal year-end; accordingly, tax-basis balances have not been determined as of June 30, 2003. For tax purposes, the fund has elected to treat net capital losses realized between November 1 and December 31 of each year as occurring on the first day of the following tax year; consequently, $45,000 of realized losses recognized for financial reporting purposes in the year ended December 31, 2002 were recognized for tax purposes on January 1, 2003. Further, the fund intends to retain realized gains to the extent of available capital loss carryforwards. As of December 31, 2002, the fund had $789,000 of unused capital loss carryforwards, of which $355,000 expire in 2009, and $434,000 expire in 2010. At June 30, 2003, the cost of investments for federal income tax purposes was $4,638,000. Net unrealized gain aggregated $623,000 at period-end, of which $995,000 related to appreciated investments and $372,000 related to depreciated investments. NOTE 4 - RELATED PARTY TRANSACTIONS The fund is managed by T. Rowe Price Associates, Inc. (the manager or Price Associates), a wholly owned subsidiary of T. Rowe Price Group, Inc. The investment management and administrative agreement between the fund and the manager provides for an all-inclusive annual fee equal to 0.95% of the fund's average daily net assets. The fee is computed daily and paid monthly. The agreement provides that investment management, shareholder servicing, transfer agency, accounting, and custody services are provided to the fund, and interest, taxes, brokerage commissions, directors' fees and expenses, and extraordinary expenses are paid directly by the fund. At June 30, 2003, $9,000 was payable under the agreement. The fund may invest in the T. Rowe Price Reserve Investment Fund and T. Rowe Price Government Reserve Investment Fund (collectively, the Reserve Funds), open-end management investment companies managed by Price Associates. The Reserve Funds are offered as cash management options only to mutual funds, trusts, and other accounts managed by Price Associates and/or its affiliates, and are not available to the public. The Reserve Funds pay no investment management fees. Distributions from the Reserve Funds to the fund for the six months ended June 30, 2003, totaled $1,000. Item 2. Code of Ethics. Not required at this time. Item 3. Audit Committee Financial Expert. Not required at this time. Item 4. Principal Accountant Fees and Services. Not required at this time. Item 5. Audit Committee of Listed Registrants. Not required at this time. Item 6. [Reserved] Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies. Not applicable. Item 8. [Reserved] Item 9. Controls and Procedures (a) The registrant's principal executive officer and principal financial officer have evaluated the registrant's disclosure controls and procedures within 90 days of this filing and have concluded that the registrant's disclosure controls and procedures were effective, as of that date, in ensuring that information required to be disclosed by the registrant in this Form N-CSR was recorded, processed, summarized, and reported timely. (b) The registrant's principal executive officer and principal financial officer are aware of no changes in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal half-year that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. Item 10. Exhibits. (a)(1) Not required at this time. (a)(2) Separate certifications by the registrant's principal executive officer and principal financial officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 and required by Rule 30a-2(a) under the Investment Company Act of 1940, are attached. (b) A certification by the registrant's principal executive officer and principal financial officer, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and required by Rule 30a-2(b) under the Investment Company Act of 1940, is attached. 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. T. Rowe Price Equity Series, Inc. By /s/ James S. Riepe James S. Riepe Principal Executive Officer Date August 22, 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 /s/ James S. Riepe James S. Riepe Principal Executive Officer Date August 22, 2003 By /s/ Joseph A. Carrier Joseph A. Carrier Principal Financial Officer Date August 22, 2003