Press Releases

November 22, 2006

Gilead Sciences to Present at Two Upcoming Investor Conferences

Lazard Capital Markets Third Annual Life Sciences Conference on
November 29th

18th Annual Piper Jaffray Health Care Conference on November 30th
Webcasts Available Through Gilead Corporate Website

FOSTER CITY, Calif--(BUSINESS WIRE)--Nov. 22, 2006--Gilead Sciences, Inc. (Nasdaq:GILD) announced today that it will be webcasting its corporate presentation at two upcoming investor conferences: the Lazard Capital Markets Third Annual Life Sciences Conference and the 18th Annual Piper Jaffray Health Care Conference, both in New York, New York. These webcasts may be accessed via the company's corporate website at www.gilead.com.

John Milligan, Ph.D., Gilead's Executive Vice President and Chief Financial Officer, will provide an overview of the company and an update on key business milestones at the Lazard Capital Markets conference on Wednesday, November 29th at 11:30 a.m. Eastern Standard Time and at the Piper Jaffray conference on Thursday, November 30th at 1:30 p.m. Eastern Standard Time.

To access the live webcasts via the internet log on to www.gilead.com. Please connect to the company's website at least 15 minutes prior to each live presentation to ensure adequate time for any software download that may be necessary to listen to the webcast.

About Gilead

Gilead Sciences is a biopharmaceutical company that discovers, develops and commercializes innovative therapeutics in areas of unmet medical need. The company's mission is to advance the care of patients suffering from life-threatening diseases worldwide. Headquartered in Foster City, California, Gilead has operations in North America, Europe and Australia.

For more information on Gilead Sciences, please visit www.gilead.com or call the Gilead Public Affairs Department at 1-800-GILEAD-5 (1-800-445-3235).

CONTACT: Gilead Sciences, Inc.
Susan Hubbard, 650-522-5715
Investor Relations
SOURCE: Gilead Sciences, Inc.