Press Releases

October 31, 2007

Gilead Sciences to Present at Two Upcoming Investor Conferences

CIBC World Markets 18th Annual Healthcare Conference on November 6th Acumen BioFin Rodman & Renshaw 9th Annual Healthcare Conference on November 7th Webcasts Available Through Gilead Corporate Website

Gregg H. Alton, Gilead's Senior Vice President and General Counsel, will provide an overview of the company and an update on key business milestones at the CIBC World Markets conference on Tuesday, November 6 at 11:30 a.m. Eastern Time and at the Rodman & Renshaw conference on Wednesday, November 7 at 9:50 a.m. Eastern 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).

SOURCE: Gilead Sciences, Inc.

Gilead Sciences, Inc.
Patrick O'Brien, 650-522-1936
Investor Relations