GILEAD SCIENCES, INC. — Director's Dealing 2017

May 11, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GILEAD SCIENCES INC (GILD)
CIK: 0000882095
Period of Report: 2017-05-09

Reporting Person: Cogan John Francis (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-09	Common Stock	M	1787	—	Acquired	47562	Direct
2017-05-09	Common Stock	M	15000	$20.705	Acquired	62562	Direct
2017-05-09	Common Stock	S	9943	$67.25	Disposed	52619	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-05-09	Restricted Stock Unit	$	M	1787	Disposed		Common Stock (1787)	Direct
2017-05-09	Non-qualified Stock Option (Right to Buy)	$20.705	M	15000	Disposed	2017-05-09	Common Stock (15000)	Direct

Footnotes

F1: Each restricted stock unit represents the contingent right to receive one share of Gilead Sciences, Inc.'s common stock.

F2: 100% of the restricted stock units vested on May 9, 2017.

F3: The exercise and sale transactions reported in this Form 4 are made pursuant to a Rule 10b5-1 trading plan.

F4: Options are 100% vested on the date of grant.