Gilead Sciences to Present at the 2005 UBS Global Life Sciences Conference on Tuesday, September 27th; Webcast Available Through Gilead Corporate Website

FOSTER CITY, Calif.--(BUSINESS WIRE)--Sept. 23, 2005--Gilead Sciences, Inc. (Nasdaq:GILD) announced today that it will be webcasting a presentation on the company from the 2005 UBS Global Life Sciences Conference in New York, New York. This webcast may be accessed via the company's corporate website at www.gilead.com.

John F. Milligan, Ph.D., Gilead's Executive Vice President and Chief Financial Officer, will provide an overview of the company on Tuesday, September 27th at 1:30 p.m. Eastern Time.

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

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