424B3 1 a2039307z424b3.txt FORM 424(B)(3) Filed Pursuant to Rule 424 (b) (3) and (c) File No. 333-54350 GILEAD SCIENCES, INC. $250,000,000 PRINCIPAL AMOUNT 5% CONVERTIBLE SUBORDINATED NOTES DUE DECEMBER 15, 2007 AND SHARES OF COMMON STOCK ISSUABLE UPON CONVERSION OF THE NOTES ------------------ This prospectus supplement should be read in conjunction with the prospectus dated February 9, 2001, which is to be delivered with this prospectus supplement. SEE "RISK FACTORS" BEGINNING ON PAGE 6 OF THE PROSPECTUS TO READ ABOUT FACTORS YOU SHOULD CONSIDER BEFORE BUYING THE NOTES OR OUR COMMON STOCK. --------------------- Neither the Securities and Exchange Commission nor any other regulatory body has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense. ------------------------ The table, including related notes, appearing in the prospectus under the heading "Selling Securityholders" is superseded by the following table, including related notes:

PRINCIPAL PRINCIPAL AMOUNT OF COMMON AMOUNT OF NOTES STOCK NOTES COMMON OWNED OWNED BENEFICIALLY STOCK COMMON AFTER AFTER OWNED AND BENEFICIALLY STOCK COMPLETION COMPLETION NAME OFFERED(1) OWNED(2) OFFERED OF OFFERING OF OFFERING ---- ------------ ------------ -------- ----------- ----------- 1976 Distribution Trust FBO A.R. Lander / Zinterhofer........................................ 14,000 284 284 0 0 1976 Distribution Trust FBO Jane A. Lander........... 14,000 284 284 0 0 AAM / Zazove Institutional Income Fund, L.P. (BS).... 500,000 10,178 10,178 0 0 AFTRA Health Fund.................................... 75,000 1,526 1,526 0 0 Alexandra Global Investment Fund 1, Ltd.............. 2,500,000 50,890 50,890 0 0 American Motorist Insurance Company.................. 489,000 9,954 9,954 0 0 Arapahoe County Colorado............................. 48,000 977 977 0 0 Argent Classic Convertible Arbitrage Fund (Bermuda) Ltd................................................ 7,000,000 142,493 142,493 0 0 Argent Convertible Arbitrage Fund Ltd................ 4,000,000 81,424 81,424 0 0 BP Amoco PLC, Master Trust........................... 1,072,000 21,821 21,821 0 0 British Virgin Islands Social Security Board......... 36,000 732 732 0 0 Brown & Williamson Tobacco Retirement Trust.......... 25,000 508 508 0 0 Century National Insurance Company................... 500,000 10,178 10,178 0 0 City of New Orleans.................................. 201,000 4,091 4,091 0 0 Deutsche Banc Alex Brown Inc......................... 29,625,000 603,053 603,053 0 0 Employee Benefit Convertible Securities Fund (Custodian DTC #955 Bank of America Personal Trust)............................................. 225,000 4,580 4,580 0 0 FIST Convertible Securities Fund..................... 3,000,000 61,068 61,068 0 0 First Union Securities Inc........................... 2,000,000 40,712 40,712 0 0 Forest Alternative Strategies Fund II L.P. ASM....... 275,000 5,597 5,597 0 0 Forest Global Convertible Fund A-5................... 17,455,000 355,318 355,318 0 0 HighBridge International LLC......................... 10,000,000 203,562 203,562 0 0 Hotel Union & Hotel Industry of Hawaii............... 373,000 7,592 7,592 0 0 ITG, Inc............................................. 100,000 2,035 2,035 0 0 Jefferies & Company Inc.............................. 8,000 162 162 0 0 JMG Capital Partners, LP............................. 3,500,000 71,246 71,246 0 0 JMG Triton Offshore Fund Ltd......................... 3,500,000 71,246 71,246 0 0 J.P. Morgan Securities, Inc.......................... 4,097,000 83,399 83,399 0 0 KBC Financial Products USA........................... 3,500,000 71,246 71,246 0 0 Lehman Brothers Inc.................................. 20,000,000 407,124 407,124 0 0 Lipper Convertibles L.P.............................. 1,000,000 20,356 20,356 0 0 LLT Limited.......................................... 800,000 16,284 16,284 0 0 Local Initiatives Support Corporation................ 46,000 936 936 0 0 Mainstay Convertible Fund............................ 1,400,000 28,498 28,498 0 0 Mainstay VP Convertible Portfolio.................... 350,000 7,124 7,124 0 0 McMahan Securities Co. L.P........................... 500,000 10,178 10,178 0 0 Merrill Lynch Insurance Group........................ 246,000 5,007 5,007 0 0 Nabisco Holdings..................................... 29,000 590 590 0 0 National Union Fire Insurance Company of Pittsburgh......................................... 1,500,000 30,534 30,534 0 0 Nations Convertible Securities Fund (Custodian DTC #901 Bank of New York)......................... 6,200,000 126,208 126,208 0 0 New Orleans Firefighters Pension / Relief Fund....... 106,000 2,157 2,157 0 0 New York Life Insurance and Annuity Corporation...... 1,000,000 20,356 20,356 0 0 New York Life Insurance Company...................... 9,000,000 183,206 183,206 0 0 New York Life Separate Account #7.................... 150,000 3,053 3,053 0 0 Occidental Petroleum Corporation..................... 194,000 3,949 3,949 0 0 Oppenheimer Convertible Securities Fund.............. 5,000,000 101,781 101,781 0 0 Pacific Life Insurance Company....................... 1,000,000 20,356 20,356 0 0 Parker-Hannifin Corporation.......................... 37,000 753 753 0 0 Pro-Mutual........................................... 685,000 13,944 13,944 0 0 Putnam Asset Allocation Funds--Balanced Portfolio.... 150,000 3,053 3,053 0 0

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PRINCIPAL PRINCIPAL AMOUNT OF COMMON AMOUNT OF NOTES STOCK NOTES COMMON OWNED OWNED BENEFICIALLY STOCK COMMON AFTER AFTER OWNED AND BENEFICIALLY STOCK COMPLETION COMPLETION NAME OFFERED(1) OWNED(2) OFFERED OF OFFERING OF OFFERING ---- ------------ ------------ -------- ----------- ----------- Putnam Asset Allocation Funds--Conservative Portfolio.......................................... 89,000 1,811 1,811 0 0 Putnam Convertible Income--Growth Trust.............. 2,000,000 40,712 40,712 0 0 Putnam Convertible Opportunities and Income Trust.... 49,000 997 997 0 0 Putnam High Income Convertible and Bond Fund......... 300,000 6,106 6,106 0 0 Raytheon Master Pension Trust........................ 529,000 10,768 10,768 0 0 RBC Capital Services, Inc. c/o Forest Investment Mngt., L.L.C....................................... 370,000 7,531 7,531 0 0 RJR Reynolds......................................... 92,000 1,872 1,872 0 0 Robertson Stephens................................... 10,000,000 203,562 203,562 0 0 R(2) Investments, LDC................................ 25,000,000 508,905 508,905 0 0 San Diego County Employees Retirement Association.... 2,500,000 50,890 50,890 0 0 SG Cowen Securities Corporation...................... 4,000,000 81,424 81,424 0 0 Shell Pension Trust.................................. 428,000 8,712 8,712 0 0 Smithfield Trust Company............................. 10,000 203 203 0 0 State of Maryland Retirement System.................. 2,509,000 51,073 51,073 0 0 Teachers Insurance and Annuity Association........... 3,500,000 71,246 71,246 0 0 The City University of New York...................... 119,000 2,422 2,422 0 0 The Grable Foundation................................ 91,000 1,852 1,852 0 0 The Grady Hospital Foundation........................ 103,000 2,096 2,096 0 0 University of Rochester.............................. 19,000 386 386 0 0 Viacom Inc. Pension Plan Master Trust................ 47,000 956 956 0 0 Zurich Master Hedge Fund c/o Forest Investment Mngt., L.L.C.............................................. 350,000 7,124 7,124 0 0

------------------------------ (1) Amounts indicated may be in excess of the total amount registered due to sales or transfers exempt from the registration requirements of the Securities Act since the date upon which the selling holders provided to us the information regarding their notes and common stock. (2) Unless otherwise noted, represents shares of common stock issuable upon conversion of notes. The date of this prospectus supplement is February 16, 2001. 3