X0202 4 2006-06-14 1 0000046989 HERCULES INC HPC 0001257330 DUFF PATRICK HERCULES PLAZA 1313 N. MARKET STREET WILMINGTON DE 19894-0001 1 0 0 0 Common Stock 2006-06-14 4 D 0 1415 9.8515 D 78540 D Common Stock 2006-06-14 4 D 0 2210 10.82 D 76330 D Common Stock 2006-06-14 4 D 0 600 11.33 D 75730 D Involuntary forfeiture of Restricted Stock pursuant to the terms of the Non-Employee Director Stock Accumulation Plan. Involuntary forfeiture of Restricted Stock Units pursuant to the terms of the Hercules Incorporated Omnibus Equity Compensation Plan for Non-Employee Directors. /s/ Israel J. Floyd Acting As Attorney in Fact for Patrick Duff 2006-06-27