X0202 4 2004-12-10 1 0001067588 ACLARA BIOSCIENCES INC ACLA 0001226863 KLOPACK THOMAS G 1288 PEAR AVENUE MOUNTAIN VIEW CA 94043 1 1 0 0 Chief Executive Officer Common Stock 2004-12-10 4 D 0 15000 D 0 D NSO Stock Option 2.02 2004-12-10 4 D 0 507738 2.02 D 2004-03-20 2013-03-20 common stock 507738 0 D Incentive Stock Option 2.02 2004-12-10 4 D 0 192262 2.02 D 2004-03-20 2013-03-20 common stock 192262 0 D Incentive Stock Option 3.20 2004-12-10 4 D 0 8841 3.20 D 2005-02-06 2014-02-06 common stock 8841 0 D NSO Stock Option 3.20 2004-12-10 4 D 0 116159 3.20 D 2005-02-06 2014-02-06 common stock 116159 0 D Disposed of pursuant to merger agreement between Aclara Biosciences, Inc., and Virologic, Inc., in exchange for 25,500 shares of Virologic, Inc. Common Stock. This option, which provided for monthly vesting after one year cliff beginning 3/20/2003, was assumed by Virologic, Inc., in the merger and replaced with an option to purchase 326,845 shares of Virologic common stock for $1.19. This option, which provided for monthly vesting after one year cliff beginning 3/20/2003, was assumed by Virologic, Inc., in the merger and replaced with an option to purchase 863,154 shares of Virologic common stock for $1.19. This option, which provided for monthly vesting after one year cliff beginning 2/6/2004, was assumed by Virologic, Inc., in the merger and replaced with an option to purchase 15,029 shares of Virologic common stock for $1.88. This option, which provided for monthly vesting after one year cliff beginning 2/6/2004, was assumed by Virologic, Inc., in the merger and replaced with an option to purchase 197,470 shares of Virologic common stock for $1.88. Dian Georgia, attorney-in-fact 2004-12-10