FOSTER CITY, Calif.--(BUSINESS WIRE)--Gilead Sciences, Inc. (Nasdaq:GILD) today announced the establishment of a stock trading plan under Rule 10b5-1 of the Securities Exchange Act of 1934 on May 29, 2007 by Kevin Young, Executive Vice President, Commercial Operations of Gilead Sciences. Commencing in July 2007, Mr. Young’s plan provides for the exercise and sale of up to 15,000 stock options each quarter on pre-determined dates through October 2009.