X0201 4 2003-08-20 0 0000874294 ICOS CORP / DE ICOS 0001222247 BLUM LEONARD M 22021 - 20TH AVENUE SE BOTHELL WA 98021 0 1 0 0 VP, Sales and Marketing Common Stock 2003-08-20 4 P 0 1500 36.4820 A 14500.00 D Common Stock 4300.00 I By Shares Held By Ltd Partnership By: Susan Aznoff, Attorney-in-Fact 2003-08-20