FOSTER CITY, Calif.--(BUSINESS WIRE)--Gilead Sciences, Inc. (Nasdaq:GILD) announced today its results of operations for the quarter ended March 31, 2007. Total revenues for the first quarter of 2007 were $1.03 billion, up 48 percent compared to total revenues of $692.9 million for the first quarter of 2006. Net income for the first quarter of 2007 was $407.4 million, or $0.85 per diluted share, which included after-tax stock-based compensation expense of $40.2 million. Excluding after-tax stock-based compensation expense, non-GAAP net income for the first quarter of 2007 was $447.6 million, or $0.93 per diluted share, compared to non-GAAP net income of $286.2 million, or $0.59 per diluted share, for the first quarter of 2006.