X0202 4 2006-08-17 0 0001163348 ALLIED WORLD ASSURANCE CO HOLDINGS LTD AWH 0001063754 DILLARD JOAN H ALLIED WORLD ASSURANCE CO HOLDINGS, LTD 43 VICTORIA STREET HAMILTON D0 HM 12 BERMUDA 0 1 0 0 SVP & CFO Common Shares 2006-08-17 4 P 0 600 35.94 A 27933 D Common Shares 2006-08-17 4 P 0 200 35.90 A 28133 D Common Shares 2006-08-17 4 P 0 200 35.89 A 28333 D /s/ Joan H. Dillard 2006-08-18