Chubb Ltd — Director's Dealing 2012

May 1, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ACE Ltd (ACE)
CIK: 0000896159
Period of Report: 2012-04-30

Reporting Person: ATIEH MICHAEL G (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-04-30	Common Shares	M	4000	$33.39	Acquired	41301.6	Direct
2012-04-30	Common Shares	S	4000	$75.79	Disposed	37301.6	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-04-30	Options to Acquire	$33.39	M	4000	Disposed	2012-05-16	Common Shares (4000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Shares	1535	Indirect

Footnotes

F1: The Common Stock reported herein as being sold were sold at a range of between $75.77 and $75.84 per share. The sale price reported above represents the weighted average sale price for the reported transaction and has been rounded to the nearest cent.

F2: The stock options vested in equal installments on the date prior to each of the 2003, 2004 and 2005 ACE Limited annual shareholder meetings.