X0306 4 2017-07-06 0 0001163348 Allied World Assurance Co Holdings, AG AWH 0001598093 Iglesias Louis ALLIED WORLD ASSURANCE CO. HOLDINGS, AG GUBELSTRASSE 24, PARK TOWER, 15TH FLOOR ZUG V8 6300 SWITZERLAND 0 1 0 0 President, North America Common Shares 2017-07-06 4 U 0 11322 D 0 D Restricted Stock Units 2017-07-06 4 D 0 8299 D Common Shares 8299 0 D Performance-based Awards 2017-07-06 4 D 0 32337 D Common Shares 32337 0 D Disposed of in an exchange offer (the "Offer") by a wholly-owned subsidiary of Fairfax Financial Holdings Limited, a Canadian corporation ("Fairfax"), to acquire all of the outstanding common shares, par value CHF 4.10 per share, of the Issuer, pursuant to the terms, and subject to the conditions, of that certain Agreement and Plan of Merger, dated as of December 18, 2016, between Fairfax and the Issuer (the "Merger Agreement"). Each share of the Issuer was exchanged for (i) cash consideration of $23.00, (ii) a special cash dividend of $5.00 and (iii) 0.057937 of a share of subordinate voting stock at Fairfax (the "Merger Consideration"). Pursuant to the Merger Agreement, outstanding Restricted Stock Units became fully vested in connection with the completion of the Offer and were automatically cancelled and converted into the right to receive an amount in cash equal to the Merger Consideration (with the Merger Consideration being converted into cash as of the time of completion of the Offer). Pursuant to the Merger Agreement, outstanding performance-based awards became fully vested based on the target specified in the applicable performance-based award in connection with the completion of the Offer and were automatically cancelled and converted into the right to receive an amount in cash equal to the Merger Consideration (with the Merger Consideration being converted into cash as of the time of completion of the Offer). /s/ Theodore Neos, by Power of Attorney 2017-07-10