X0202 5 2004-12-31 0 0 0 0001003642 IMPAX LABORATORIES INC IPXL 0001245199 HSU LARRY 1 1 0 0 President Common stock 2383771 D Option to buy common stock 5 2001-12-22 2010-12-22 Common stock 50000 50000 D Option to buy common stock 6.72 2003-03-08 2012-03-08 Common stock 100000 100000 D Option to buy common stock 3.04 2004-03-10 2013-03-10 Common stock 75000 75000 D Option to buy common stock 23.05 2005-04-14 2014-04-14 Common stock 75000 75000 D Does not include 1,254,320 shares of common stock held in the Hsu Children Irrevocable Trust, as to which shares Larry Hsu does not have voting or dispositive power. Vesting as follows: 10% after 1 year; 30% after 2 years; 60% after 3 years; 100% after 4 years from date of grant (12/22/00). Vesting over 4 years from date of grant (03/08/02) in equal installments of 25% annually. Vesting over 4 years from date of grant (03/10/03) in equal installments of 25% annually. Vesting over 4 years from date of grant (04/14/04) in equal installments of 25% annually. Larry Hsu 2005-01-17