Gilead Sciences to Release Second Quarter 2006 Financial Results on Thursday, July 20, 2006; Conference Call and Webcast to Follow

Gilead Sciences, Inc. (Nasdaq:GILD) announced today that
its second quarter 2006 financial results will be released on
Thursday, July 20, 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 second 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
1-800-561-2718 (U.S.) or 1-617-614-3525 (international) and dial the
participant passcode 46618905 to access the call. Telephone replay is
available approximately two hours after the call through July 23,
2006. To access, please call 1-888-286-8010 (U.S.) or 1-617-801-6888
(international) and dial the participant passcode 67884555. 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).