X0202 3 2005-07-27 0 0000882095 GILEAD SCIENCES INC GILD 0001334682 Alton Gregg H GILEAD SCIENCES, INC. 333 LAKESIDE DRIVE FOSTER CITY CA 94404 0 1 0 0 SVP, General Counsel Common Stock 19354 D Incentive Stock Option (right to buy) 7.3985 2011-01-18 Common Stock 5000 D Incentive Stock Option (right to buy) 7.4063 2010-04-05 Common Stock 2994 D Incentive Stock Option (right to buy) 9.81 2011-04-18 Common Stock 6000 D Incentive Stock Option (right to buy) 13.6025 2011-07-19 Common Stock 5476 D Incentive Stock Option (right to buy) 16.4375 2012-01-30 Common Stock 3000 D Incentive Stock Option (right to buy) 16.9350 2012-10-30 Common Stock 2992 D Incentive Stock Option (right to buy) 17.8850 2013-01-29 Common Stock 3500 D Incentive Stock Option (right to buy) 30.5300 2014-01-28 Common Stock 3000 D Incentive Stock Option (right to buy) 32.0200 2015-01-26 Common Stock 2500 D Incentive Stock Option (right to buy) 34.9950 2013-07-30 Common Stock 1068 D Incentive Stock Option (right to buy) 35.3500 2014-11-02 Common Stock 237 D Incentive Stock Option (right to buy) 38.72 2015-05-09 Common Stock 515 D Non-Qualified Stock Option (right to buy) 7.3985 2011-01-18 Common Stock 5000 D Non-Qualified Stock Option (right to buy) 7.4063 2010-04-05 Common Stock 3000 D Non-Qualified Stock Option (right to buy) 8.3360 2009-10-21 Common Stock 15010 D Non-Qualified Stock Option (right to buy) 9.8100 2011-04-18 Common Stock 5000 D Non-Qualified Stock Option (right to buy) 13.6025 2011-07-19 Common Stock 74524 D Non-Qualified Stock Option (right to buy) 16.4375 2012-01-30 Common Stock 57000 D Non-Qualified Stock Option (right to buy) 16.9350 2012-10-30 Common Stock 21008 D Non-Qualified Stock Option (right to buy) 17.1625 2011-10-25 Common Stock 30000 D Non-Qualified Stock Option (right to buy) 17.8850 2013-01-29 Common Stock 66500 D Non-Qualified Stock Option (right to buy) 30.53 2014-01-28 Common Stock 57000 D Non-Qualified Stock Option (right to buy) 32.02 2015-01-26 Common Stock 47500 D Non-Qualified Stock Option (right to buy) 34.9950 2013-07-30 Common Stock 38932 D Non-Qualified Stock Option (right to buy) 35.35 2014-11-02 Common Stock 19763 D Non-Qualified Stock Option (right to buy) 38.72 2015-05-09 Common Stock 29485 D Options vest 20% on 1/18/2002, first anniversary date of the grant, and the remaining will vest quarterly over the next four years. Options vest 20% on 4/5/2001, first anniversary date of the grant, and the remaining will vest quarterly over the next four years. Options vest 20% on 4/18/2002, first anniversary date of the grant, and the remaining will vest quarterly over the next four years. Options vest 20% on 7/19/2002, first anniversary date of the grant, and the remaining will vest quarterly over the next four years. Options vest 20% on 1/30/2003, first anniversary date of the grant, and the remaining will vest quarterly over the next four years. Options vest 20% on 10/30/2003, first anniversary date of the grant, and the remaining will vest quarterly over the next four years. Options vest 20% on 1/29/2004, first anniversary date of the grant, and the remaining will vest quarterly over the next four years. Options vest 20% on 1/28/2005, first anniversary date of the grant, and the remaining will vest quarterly over the next four years. Options vest 20% on 1/26/2006, first anniversary date of the grant, and the remaining will vest quarterly over the next four years. Options vest 20% on 7/30/2004, first anniversary date of the grant, and the remaining will vest quarterly over the next four years. Options vest 20% on 11/2/2005, first anniversary date of the grant, and the remaining will vest quarterly over the next four years. Options vest 20% on 5/9/2006, first anniversary date of the grant, and the remaining will vest quarterly over the next four years. Options vest 20% on 10/21/2000, first anniversary date of the grant, and the remaining will vest quarterly over the next four years. Options vest 20% on 10/25/2002, first anniversary date of the grant, and the remaining will vest quarterly over the next four years. /s/Gregg H. Alton 2005-07-29