X0306 4 2016-01-14 1 0000020171 CHUBB CORP CB 0001446786 Spiro Richard G. THE CHUBB CORPORATION 15 MOUNTAIN VIEW ROAD WARREN NJ 07061-1615 1 Executive Vice President Common Shares 2016-01-14 4 D 0 111516.0000 0 D 0.0000 D RESTRICTED STOCK UNITS 0.0000 2016-01-14 4 D 0 27221.0000 D Common Shares 27221.0000 0.0000 D Common stock disposed of pursuant to the Agreement and Plan of Merger, dated as of June 30, 2015, by and among ACE Limited ("ACE"), William Investment Holdings Corporation and The Chubb Corporation ("Merger Agreement"), in exchange for $62.93 per share in cash and 0.6019 shares of ACE stock per share. Pursuant to the Merger Agreement, restricted stock units are assumed by ACE and converted into restricted stock units relating to the number of ACE common shares determined in accordance with the adjustment mechanism set forth in the Merger Agreement. Restricted stock units generally cliff vest on the third anniversary of the grant date. One restricted stock unit is the equivalent of one share of common stock. Nancy J. Engers, POA 2016-01-19