Gilead Sciences to Release Third Quarter 2006 Financial Results on Wednesday, October 18, 2006

Business Editors/Health/Medical Writers

FOSTER CITY, Calif.--(BUSINESS WIRE)--Oct. 13, 2006--Gilead Sciences, Inc. (Nasdaq:GILD) announced today that its third quarter 2006 financial results will be released on Wednesday, October 18, 2006, at 4:00 p.m. Eastern Time. At 4:30 p.m. Eastern Time, Gilead will webcast a conference call live on the company's internet site. Gilead senior management will discuss the company's third quarter 2006 results and provide an overview of the company and an outlook for the remainder of 2006.

To access the webcast via the internet, log on to www.gilead.com. Please connect to the company's website at least 15 minutes prior to the conference call to ensure adequate time for any software download that may be needed to hear the webcast. Alternatively, please call 1-800-798-2884 (U.S.) or 1-617-614-6207 (international) and dial the participant passcode 91313116 to access the call. Telephone replay is available approximately two hours after the call through October 21, 2006. To access, please call 1-888-286-8010 (U.S.) or 1-617-801-6888 (international) and dial the participant passcode 43684597. The webcast will be archived on www.gilead.com for one year.

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.