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