X0306 4/A 2016-01-14 2016-01-19 0 0000896159 Chubb Ltd CB 0001184473 ZIMMERMAN JAMES M CHUBB BUILDING 17 WOODBOURNE AVENUE HAMILTON D0 HM 08 BERMUDA 1 0 0 0 Common Shares 2016-01-14 4 A 0 3271 A 3271 D Received in exchange for 5,435 shares of common stock of the Chubb Corporation ("Chubb") in accordance with the Agreement and Plan of Merger ("Merger Agreement") pursuant to which ACE Limited ("ACE") acquired Chubb and pursuant to the requirements of Rule 16b-3. The Reporting Person's original Form 4 overstated the amount of Chubb shares exchanged and the number of ACE shares received in the merger. Pursuant to the Merger Agreement, each share of Chubb common stock was converted into 0.6019 ACE common shares and $62.93 in cash. /s/ Samantha Froud, Attorney-in-fact 2016-01-29