FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Alton Gregg H   2. Issuer Name and Ticker or Trading Symbol GILEAD SCIENCES INC [GILD] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) EVP Comm&Acs ALA, Corp&Med Aff (Last) (First) (Middle) GILEAD SCIENCES, INC., 333 LAKESIDE DRIVE 3. Date of Earliest Transaction (Month/Day/Year) 02/15/2017 (Street) FOSTER CITY, CA 94404 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 02/15/2017   A V 315 (1) A $ 59.33 123,279 D   Common Stock 02/16/2017   A   4,940 (2) A $ 0 128,219 D   Common Stock 02/16/2017   A   2,776 (3) A $ 0 130,995 D   Common Stock 02/16/2017   F   6,577 D $ 70.31 124,418 D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Alton Gregg H GILEAD SCIENCES, INC. 333 LAKESIDE DRIVE FOSTER CITY, CA 94404			EVP Comm&Acs ALA, Corp&Med Aff

Signatures

/s/ Marissa Song by Power of Attorney for Gregg H. Alton		02/21/2017
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Shares were acquired under the Gilead Sciences, Inc. Employee Stock Purchase Plan.
(2)	Represents shares of the Issuer's common stock subject to specific tranches of the performance share awards made to the Reporting Person on February 1, 2015, and February 1, 2016. Such tranches of shares were subject to both performance-vesting and service-vesting requirements. The performance vesting requirement was satisfied on the date reported in Column 2 above upon certification of performance goal attainment by the Compensation Committee of the Issuer's Board of Directors. However, the shares will not be issued to the Reporting Person until such individual satisfies the applicable service-vesting requirements by continuing in the Issuer's employ through December 31, 2017 and December 31, 2018, respectively.
(3)	Represents shares of the Issuer's common stock subject to specific tranches of the performance share award made to the Reporting Person on February 1, 2014. Such tranches of shares were subject to performance-vesting and service-vesting requirements and became issuable on the date reported in Column 2 above upon certification of performance goal attainment by the Compensation Committee of the Issuer's Board of Directors.

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