Item 1. Report to Shareholders T. ROWE PRICE MID-CAP GROWTH FUND - -------------------------------------------------------------------------------- Certified Financials T. ROWE PRICE MID-CAP GROWTH FUND - -------------------------------------------------------------------------------- Certified Financials (Unaudited) FINANCIAL HIGHLIGHTS For a share outstanding throughout each period - -------------------------------------------------------------------------------- Mid-Cap Growth shares 6 Months Year Ended Ended 6/30/03 12/31/02 12/31/01 12/31/00 12/31/99 12/31/98 ------- -------- -------- -------- -------- -------- NET ASSET VALUE Beginning of period $ 31.04 $ 39.40 $ 39.79 $ 40.13 $ 34.08 $ 28.60 Investment activities Net investment income (loss) (0.08) (0.17) (0.13) (0.03) (0.03) (0.03) Net realized and unrealized gain (loss) 5.68 (8.19) (0.26) 2.96 7.96 6.24 Total from investment activities 5.60 (8.36) (0.39) 2.93 7.93 6.21 Distributions Net realized gain - - - (3.27) (1.88) (0.73) NET ASSET VALUE End of period $ 36.64 $ 31.04 $ 39.40 $ 39.79 $ 40.13 $ 34.08 ------- ------- ------- ------- ------- ------- Ratios/Supplemental Data Total return^ 18.04% (21.22)% (0.98)% 7.43% 23.78% 22.00% Ratio of total expenses to average net assets 0.90%! 0.88% 0.89% 0.86% 0.87% 0.91% Ratio of net investment income (loss) to average net assets (0.51)%! (0.50%) (0.35)% (0.09)% (0.09)% (0.14)% Portfolio turnover rate 28.4%! 36.0% 43.0% 53.6% 53.3% 46.7% Net assets, end of period (in millions) $ 7,509 $ 5,713 $ 6,739 $ 6,589 $ 5,243 $ 3,310 ^ 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. T. ROWE PRICE MID-CAP GROWTH FUND - -------------------------------------------------------------------------------- Certified Financials(Unaudited) FINANCIAL HIGHLIGHTS For a share outstanding throughout each period - -------------------------------------------------------------------------------- Mid-Cap Growth-Advisor Class shares 6 Months Year 3/31/00 Ended Ended Through 6/30/03 12/31/02 12/31/01 12/31/00 ------- -------- -------- -------- NET ASSET VALUE Beginning of period $ 30.94 $ 39.39 $ 39.83 $ 44.13 Investment activities Net investment income (loss) (0.02)* (0.12)* (0.08) 0.01** Net realized and unrealized gain (loss) 5.56 (8.33) (0.36) (1.04) Total from investment activities 5.54 (8.45) (0.44) (1.03) Distributions Net realized gain - - - (3.27) NET ASSET VALUE End of period $ 36.48 $ 30.94 $ 39.39 $ 39.83 -------- --------- --------- -------- Ratios/Supplemental Data Total return^ 17.91%* (21.45)%* (1.10)% (2.22)% Ratio of total expenses to average net assets 1.10%*! 1.10%* 1.04% 0.70%! Ratio of net investment income (loss) to average net assets (0.72)%*! (0.69)%* (0.56)% 0.09%! Portfolio turnover rate 28.4%! 36.0% 43.0% 53.6% Net assets, end of period (in thousands) $ 131,193 $ 50,640 $ 16,736 $ 2,303 * Excludes expenses in excess of a 1.10% contractual expense limitation in effect through 12/31/03. ** The amount presented is calculated pursuant to a methodology prescribed by the Securities and Exchange Commission for a share outstanding throughout the period. This amount is inconsistent with the fund's aggregate gains and losses because of the timing of sales and redemptions of fund shares in relation to fluctuating market values for the investment portfolio. ^ 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. T. ROWE PRICE MID-CAP GROWTH FUND - -------------------------------------------------------------------------------- Certified Financials (Unaudited) FINANCIAL HIGHLIGHTS For a share outstanding throughout each period - -------------------------------------------------------------------------------- Mid-Cap Growth-R Class shares 6 Months 9/30/02 Ended Through 6/30/03 12/31/02 ------- -------- NET ASSET VALUE Beginning of period $ 31.01 $ 28.61 Investment activities Net investment income (loss) 0.03*++ (0.07)* Net realized and unrealized gain (loss) 5.46 2.47++ Total from investment activities 5.49 2.40 NET ASSET VALUE End of period $ 36.50 $ 31.01 --------- -------- Ratios/Supplemental Data Total return^ 17.70%* 8.39%* Ratio of total expenses to average net assets 1.40%!* 1.40 %!* Ratio of net investment income (loss) to average net assets (1.03)%!* (0.88%)!* Portfolio turnover rate 28.4%! 36.0% Net assets, end of period (in thousands) $ 7,052 $ 108 * Excludes expenses in excess of a 1.40% contractual expense limitation in effect through 4/30/04. ++ The amount presented is calculated pursuant to a methodology prescribed by the Securities and Exchange Commission for a share outstanding throughout the period. This amount is inconsistent with the fund's aggregate gains and losses because of the timing of sales and redemptions of fund shares in relation to fluctuating market values for the investment portfolio. ^ 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. T. ROWE PRICE MID-CAP GROWTH FUND - -------------------------------------------------------------------------------- Certified Financials (Unaudited) June 30, 2003 PORTFOLIO OF INVESTMENTS Shares Value - -------------------------------------------------------------------------------- In thousands COMMON STOCKS 94.5% CONSUMER DISCRETIONARY 15.3% Hotels, Restaurants & Leisure 2.3% Cheesecake Factory * 1,500,000 $ 53,835 Fairmont Hotels 2,064,900 48,319 Starbucks * 2,900,000 71,108 173,262 Household Durables 0.5% Garmin * 950,000 37,876 37,876 Leisure Equipment & Products 1.0% Brunswick 3,000,000 75,060 75,060 Media 3.6% Catalina Marketing *! 3,000,000 52,950 Cox Radio, Class A * 2,400,000 55,464 Lamar Advertising, Class A * 1,000,000 35,210 Rogers Communications, Class B 3,100,000 49,755 Scholastic * 1,229,900 36,627 Scripps, Class A 260,000 23,067 Westwood One * 600,000 20,358 273,431 Multiline Retail 2.4% 99 Cents Only Stores * 500,000 17,160 Dollar Tree Stores * 2,800,000 88,844 Family Dollar Stores 2,150,000 82,022 188,026 Specialty Retail 4.8% Best Buy * 2,400,000 105,408 O'Reilly Automotive * 2,000,000 66,780 Ross Stores 1,750,000 74,795 Weight Watchers * 1,300,000 59,137 Williams-Sonoma * 2,100,000 61,320 367,440 Textiles, Apparel, & Luxury Goods 0.7% Coach * 1,150,000 $ 57,201 57,201 Total Consumer Discretionary 1,172,296 CONSUMER STAPLES 1.9% Beverages 0.4% Cott * 1,614,900 33,412 33,412 Food & Staples Retailing 1.0% Whole Foods Market * 1,650,000 78,425 78,425 Personal Products 0.5% Estee Lauder, Class A 1,000,000 33,530 33,530 Total Consumer Staples 145,367 ENERGY 7.0% Energy Equipment & Services 4.8% BJ Services * 2,700,000 100,872 Cooper Cameron * 1,000,000 50,380 Diamond Offshore Drilling 3,200,000 67,168 FMC Technologies * 2,850,000 59,993 Smith International * 2,400,000 88,176 366,589 Oil & Gas 2.2% Devon Energy 1,450,000 77,430 Murphy Oil 700,000 36,820 XTO Energy 2,500,000 50,275 164,525 Total Energy 531,114 FINANCIALS 7.5% Capital Markets 4.0% Charles Schwab 3,000,000 30,270 Eaton Vance 1,400,000 44,240 Franklin Resources 1,000,000 $ 39,070 Investor's Financial Services 1,000,000 29,010 Legg Mason 800,000 51,960 Waddell & Reed Financial, Class A ! 4,225,000 108,456 303,006 Commercial Banks 0.1% Silicon Valley Bancshares * 500,000 11,905 11,905 Diversified Financial Services 0.7% Principal Financial Group 1,600,000 51,600 51,600 Insurance 2.2% AMBAC 350,000 23,187 Nationwide Financial Services, Class A 1,600,000 52,000 Protective Life 1,600,000 42,800 Willis Group Holdings 1,600,000 49,200 167,187 Thrifts & Mortgage Finance 0.5% Radian Group 1,100,000 40,315 40,315 Total Financials 574,013 HEALTH CARE 20.7% Biotechnology 5.5% Affymetrix * 900,000 17,739 Alkermes * 1,750,000 18,813 Amylin Pharmaceuticals * 1,350,000 29,552 Cephalon * 1,200,000 49,392 Gilead Sciences * 1,700,000 94,486 Human Genome Sciences * 1,900,000 24,168 IDEC Pharmaceuticals * 1,000,000 34,000 MedImmune * 1,750,000 63,647 Millennium Pharmaceuticals * 2,100,000 33,033 Neurocrine Biosciences * 500,000 24,970 Protein Design Labs * 1,100,000 15,378 Vertex Pharmaceuticals * 1,000,000 14,600 419,778 Health Care Equipment & Supplies 1.9% Apogent Technologies * 2,000,000 $ 40,000 Cytyc * 1,000,000 10,520 Invitrogen * 400,000 15,348 St. Jude Medical * 700,000 40,250 Waters Corporation * 1,400,000 40,782 146,900 Health Care Providers & Services 9.4% AmerisourceBergen 950,000 65,882 Anthem * 1,400,000 108,010 Davita * 1,900,000 50,882 Health Management, Class A 3,500,000 64,575 Laboratory Corporation of America * 2,500,000 75,375 Manor Care * 3,000,000 75,030 Omnicare ! 5,100,000 172,329 Triad Hospitals * 1,250,000 31,025 WellChoice * 900,000 26,352 Wellpoint Health Networks * 600,000 50,580 720,040 Pharmaceuticals 3.9% Andrx * 3,200,000 63,680 Barr Laboratories * 1,350,000 88,425 IVAX * 2,300,000 41,055 Teva Pharmaceutical ADR 1,800,000 102,474 295,634 Total Health Care 1,582,352 INDUSTRIALS & BUSINESS SERVICES 15.0% Aerospace & Defense 2.8% Alliant Techsystems * 1,500,000 77,865 L-3 Communications Holdings * 900,000 39,141 Rockwell Collins 4,100,000 100,983 217,989 Air Freight & Logistics 0.7% Expeditors International of Washington 1,600,000 55,424 55,424 Airlines 0.1% JetBlue Airways * 250,000 $ 10,573 10,573 Building Products 0.9% American Standard * 900,000 66,537 66,537 Commercial Services & Supplies 6.4% Apollo Group, Class A * 600,000 37,056 ChoicePoint * 3,100,000 107,012 Education Management * 1,000,000 53,180 Hewitt Associates *! 2,020,000 47,571 Manpower 2,400,000 89,016 Robert Half International * 4,000,000 75,760 Viad 3,500,000 78,365 487,960 Industrial Conglomerates 1.0% Roper Industries ! 2,000,000 74,400 74,400 Machinery 2.9% Danaher 1,200,000 81,660 ITT Industries 1,400,000 91,644 Oshkosh Truck, Class B 800,000 47,456 220,760 Trading Companies & Distributors 0.2% Fastenal 350,000 11,879 MSC Industrial Direct, Class A * 200,000 3,580 15,459 Total Industrials & Business Services 1,149,102 INFORMATION TECHNOLOGY 23.4% Communications Equipment 1.0% Harris 2,500,000 75,125 75,125 Computer & Peripherals 1.7% Diebold 1,300,000 56,225 Lexmark International, Class A * 350,000 24,770 Seagate Technology 3,000,000 52,950 133,945 Electronic Equipment & Instruments 2.1% CDW * 1,300,000 $ 59,540 Celestica * 2,500,000 39,400 Jabil Circuit * 1,800,000 39,780 Molex, Class A 1,000,000 23,179 161,899 Internet Software & Services 3.0% Expedia, Class A * 500,000 38,190 InterActiveCorp * 1,600,000 63,312 Monster Worldwide * 2,500,000 49,325 VeriSign * 5,700,000 78,831 229,658 IT Services 7.9% Affiliated Computer Services, Class A * 1,500,000 68,595 BearingPoint * 6,000,000 57,900 BISYS Group * 2,600,000 47,762 Ceridian * 4,100,000 69,577 Certegy * 3,000,000 83,250 DST Systems * 2,300,000 87,400 Fiserv * 1,700,000 60,537 Iron Mountain * 2,200,000 81,598 SunGard Data Systems * 1,750,000 45,342 601,961 Semiconductor & Semiconductor Equipment 4.0% Intersil Holding, Class A * 2,100,000 55,881 KLA-Tencor * 900,000 41,841 Maxim Integrated Products 800,000 27,352 Microchip Technology 3,100,000 76,353 Novellus Systems * 1,200,000 43,945 QLogic * 550,000 26,582 Semtech * 2,250,000 32,040 303,994 Software 3.7% Adobe Systems 1,700,000 54,519 Informatica * 1,300,000 8,983 Intuit * 1,000,000 44,530 Mercury Interactive * 1,000,000 38,610 Network Associates * 2,600,000 32,968 PeopleSoft * 2,250,000 $ 39,577 Siebel Systems * 1,300,000 12,402 Synopsys * 400,000 24,740 VERITAS Software * 1,000,000 28,670 284,999 Total Information Technology 1,791,581 MATERIALS 1.9% Chemicals 1.0% Potash Corp./Saskatchewan 1,200,000 76,800 76,800 Metals & Mining 0.9% Newmont Mining 2,000,000 64,920 64,920 Total Materials 141,720 TELECOMMUNICATION SERVICES 1.7% Wireless Telecommunication Services 1.7% Nextel Communications, Class A * 4,500,000 81,360 Triton PCS Holdings, Class A * 2,200,000 11,110 Western Wireless, Class A * 3,302,900 38,082 Total Telecommunication Services 130,552 Total Miscellaneous Common Stocks 0.1% 10,830 Total Common Stocks (Cost $5,840,603) 7,228,927 SHORT-TERM INVESTMENTS 6.1% Money Market Fund 6.1% T. Rowe Price Government Reserve Investment Fund, 1.01% #! 466,566,828 466,567 Total Short-Term Investments (Cost $466,567) 466,567 Total Investments in Securities 100.6% of Net Assets (Cost $6,307,170) $ 7,695,494 Other Assets Less Liabilities (48,339) NET ASSETS $ 7,647,155 ------------ # Seven-day yield * Non-income producing ! Affiliated company - See Note 2. ADR American Depository Receipts The accompanying notes are an integral part of these financial statements. T. ROWE PRICE MID-CAP GROWTH FUND - -------------------------------------------------------------------------------- Certified Financials (Unaudited) June 30, 2003 STATEMENT OF ASSETS AND LIABILITIES In thousands - -------------------------------------------------------------------------------- Assets Investments in securities, at value Affiliated companies (cost $805,907) $ 922,273 Other companies (cost $5,501,263) 6,773,221 Total investments in securities 7,695,494 Other assets 33,647 Total assets 7,729,141 Liabilities Total liabilities 81,986 NET ASSETS $ 7,647,155 ------------ Net Assets Consist of: Undistributed net investment income (loss) $ (16,146) Undistributed net realized gain (loss) (542,913) Net unrealized gain (loss) 1,388,324 Paid-in-capital applicable to 208,747,623 shares of $0.01 par value capital stock outstanding; 1,000,000,000 shares authorized 6,817,890 NET ASSETS $ 7,647,155 ------------ NET ASSET VALUE PER SHARE Mid-Cap Growth shares ($7,508,909,375/204,957,807 shares outstanding) $ 36.64 ------------ Mid-Cap Growth - Advisor Class shares ($131,193,168/3,596,615 shares outstanding) $ 36.48 ------------ Mid-Cap Growth - R Class shares ($7,052,175/193,201 shares outstanding) $ 36.50 ------------ The accompanying notes are an integral part of these financial statements. T. ROWE PRICE MID-CAP GROWTH FUND - -------------------------------------------------------------------------------- Certified Financials (Unaudited) STATEMENT OF OPERATIONS In thousands - -------------------------------------------------------------------------------- 6 Months Ended 6/30/03 Investment Income (Loss) Income Dividend $ 9,721 Income distributions from mutual funds 2,173 Total income 11,894 Expenses Investment management 21,004 Shareholder servicing Mid-Cap Growth shares 6,323 Mid-Cap Growth-Advisor Class shares 61 Mid-Cap Growth-R Class shares 2 Prospectus and shareholder reports Mid-Cap Growth shares 368 Mid-Cap Growth-Advisor Class shares 12 Custody and accounting 140 Distribution Mid-Cap Growth-Advisor Class shares 106 Mid-Cap Growth-R Class shares 4 Registration 103 Directors 24 Legal and audit 17 Total expenses 28,164 Expenses paid indirectly (124) Net expenses 28,040 Net investment income (loss) (16,146) Realized and Unrealized Gain (Loss) Net realized gain (loss) on securities 73,434 Change in net unrealized gain (loss) on securities 1,061,076 Net realized and unrealized gain (loss) 1,134,510 INCREASE (DECREASE) IN NET ASSETS FROM OPERATIONS $ 1,118,364 ----------- The accompanying notes are an integral part of these financial statements. T. ROWE PRICE MID-CAP GROWTH FUND - -------------------------------------------------------------------------------- Certified Financials (Unaudited) STATEMENT OF CHANGES IN NET ASSETS In thousands - -------------------------------------------------------------------------------- 6 Months Year Ended Ended 6/30/03 12/31/02 Increase (Decrease) in Net Assets Operations Net investment income (loss) $ (16,146) $ (30,761) Net realized gain (loss) 73,434 (159,825) Change in net unrealized gain (loss) 1,061,076 (1,290,959) Increase (decrease) in net assets from operations 1,118,364 (1,481,545) Capital share transactions * Shares sold Mid-Cap Growth shares 1,271,338 2,255,339 Mid-Cap Growth-Advisor Class shares 72,894 51,193 Mid-Cap Growth-R Class shares 7,034 100 Shares redeemed Mid-Cap Growth shares (576,644) (1,805,314) Mid-Cap Growth-Advisor Class shares (9,166) (12,078) Mid-Cap Growth-R Class shares (465) - Increase (decrease) in net assets from capital share transactions 764,991 489,240 Net Assets Increase (decrease) during period 1,883,355 (992,305) Beginning of period 5,763,800 6,756,105 End of period $ 7,647,155 $ 5,763,800 ----------- ------------ *Share information Shares sold Mid-Cap Growth shares 38,933 64,994 Mid-Cap Growth-Advisor Class shares 2,246 1,570 Mid-Cap Growth-R Class shares 203 4 Shares redeemed Mid-Cap Growth shares (18,018) (51,996) Mid-Cap Growth-Advisor Class shares (286) (358) Mid-Cap Growth-R Class shares (13) - Increase (decrease) in shares outstanding 23,065 14,214 The accompanying notes are an integral part of these financial statements. T. ROWE PRICE MID-CAP GROWTH FUND - -------------------------------------------------------------------------------- Certified Financials (Unaudited) June 30, 2003 NOTES TO FINANCIAL STATEMENTS - -------------------------------------------------------------------------------- NOTE 1 - SIGNIFICANT ACCOUNTING POLICIES T. Rowe Price Mid-Cap Growth Fund, Inc. (the fund) is registered under the Investment Company Act of 1940 (the 1940 Act) as a diversified, open-end management investment company. The fund seeks to provide long-term capital appreciation by investing in mid-cap stocks with potential for above-average earnings growth. The fund has three classes of shares: Mid-Cap Growth Fund (Mid-Cap Growth Class), offered since June 30, 1992, Mid-Cap Growth Fund-Advisor Class (Advisor Class), offered since March 31, 2000, and Mid-Cap Growth Fund-R Class (R Class), offered since September 30, 2002. Advisor Class shares are offered only through brokers and other financial intermediaries, and R Class shares are only available to small retirement plans serviced by intermediaries. The Advisor Class and R Class each operate under separate Board-approved Rule 12b-1 plans, pursuant to which each class compensates financial intermediaries for distribution and certain administrative services. Each class has exclusive voting rights on matters related solely to that class, separate voting rights on matters that relate to all classes, and, in all other respects, the same rights and obligations as the other classes. 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. 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. Class Accounting The Advisor Class and R Class each pay distribution and administrative expenses in the form of Rule 12b-1 fees, in an amount not exceeding 0.25% and 0.50%, respectively, of the class's average net assets. Shareholder servicing, prospectus, and shareholder report expenses incurred by each class are charged directly to the class to which they relate. Expenses common to all classes, 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. Expenses Paid Indirectly Certain security trades are directed to brokers who have agreed to rebate a portion of the related commission to the fund to pay fund expenses. Additionally, credits earned on temporarily uninvested cash balances at the custodian are used to reduce the fund's custody charges. Total expenses in the accompanying statement of operations are presented before reduction for rebates and credits, which totaled $121,000 and $3,000, respectively, for the six months ended June 30, 2003. 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. Affiliated Companies The fund may invest in certain securities that are considered affiliated companies. As defined by the 1940 Act, an affiliated company is one in which the fund owns 5% or more of the outstanding voting securities. At June 30, 2003, the value of affiliated companies totaled $922,273,000, representing 12.0% of the value of the fund's investments in securities. For the six months then ended, $1,687,000 (17.4%) of dividend income, $2,173,000 (100.0%) of income distributions from mutual funds, reflected in the accompanying financial statements resulted from transactions with affiliated companies. Other Purchases and sales of portfolio securities, other than short-term securities, aggregated $1,454,291,000 and $855,470,000, 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, $68,560,000 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 $547,787,000 of unused capital loss carryforwards, of which $215,779,000 expire in 2009, and $332,008,000 expire in 2010. At June 30, 2003, the cost of investments for federal income tax purposes was $6,307,170,000. Net unrealized gain aggregated $1,388,324,000 at period-end, of which $1,758,125,000 related to appreciated investments and $369,801,000 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 agreement between the fund and the manager provides for an annual investment management fee, which is computed daily and paid monthly. The fee consists of an individual fund fee, equal to 0.35 % of the fund's average daily net assets, and the fund's pro-rata share of a group fee. The group fee is calculated based on the combined net assets of certain mutual funds sponsored by Price Associates (the group) applied to a graduated fee schedule, with rates ranging from 0.48% for the first $1 billion of assets to 0.295% for assets in excess of $120 billion. The fund's portion of the group fee is determined by the ratio of its net assets to those of the group. At June 30, 2003, the effective annual group fee rate was 0.32%, and investment management fee payable totaled $4,158,000. Through December 31, 2003 for the Advisor Class and through April 30, 2004 for the R Class, the manager is required to bear any expenses, excluding interest, taxes, brokerage commissions, and extraordinary expenses that would cause the class's ratio of total expenses to average net assets (expense ratio) to exceed 1.10% and 1.40% respectively. Thereafter, through December 31, 2005 for the Advisor Class and through April 30, 2006 for the R Class, each class is required to reimburse the manager for these expenses, provided that its average net assets have grown or expenses have declined sufficiently to allow reimbursement without causing its expense ratio to exceed 1.10% and 1.40%, respectively. At June 30, 2003, Advisor Class expenses in the amount of $14,000 remain subject to reimbursement through December 31, 2005. R Class expenses in the amount of $0 remain subject to reimbursement through April 30, 2006. In addition, the fund has entered into service agreements with Price Associates and two wholly owned subsidiaries of Price Associates (collectively, Price). Price Associates computes the daily share prices and maintains the financial records of the fund. T. Rowe Price Services, Inc. provides shareholder and administrative services in its capacity as the fund's transfer and dividend disbursing agent. T. Rowe Price Retirement Plan Services, Inc. provides subaccounting and recordkeeping services for certain retirement accounts invested in Mid-Cap Growth class and R Class. Expenses incurred pursuant to these service agreements totaled $4,343,000 for the six months ended June 30, 2003, of which $813,000 was payable at period-end. Additionally, the fund is one of several mutual funds in which certain college savings plans managed by Price Associates may invest. As approved by the fund's Board of Directors, shareholder servicing costs associated with each college savings plan are borne by the fund in proportion to the average daily value of its shares owned by the college savings plan. For the six months ended June 30, 2003, the Mid-Cap Growth share class was charged $84,000 for shareholder servicing costs related to the college savings plans, of which $68,000 was for services provided by Price and $16,000 was payable at period-end. At June 30, 2003, approximately 0.5% of the outstanding shares of the Mid-Cap Growth class were held by college savings plans. The fund is also one of several mutual funds sponsored by Price Associates (underlying Price funds) in which the T. Rowe Price Retirement Funds (Retirement Funds) may invest. The Retirement Funds do not invest in the underlying Price funds for the purpose of exercising management or control. Pursuant to special servicing agreements, expenses associated with the operation of the Retirement Funds are borne by each underlying Price fund to the extent of estimated savings to it and in proportion to the average daily value of its shares owned by the Retirement Funds. Expenses allocated under these agreements are reflected as shareholder servicing expense in the accompanying financial statements. For the six months ended June 30, 2003, the Mid-Cap Growth class was allocated $19,000 of Retirement Funds' expenses, of which $10,000 related to services provided by Price and $1,000 was payable at period-end. At June 30, 2003, approximately 0.2% of the outstanding shares of the Mid-Cap Growth class were held by the Retirement Funds. 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 $2,173,000. 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 Mid-Cap Growth Fund, 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