Aon plc — Director's Dealing 2011

Nov 14, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AON CORP (AON)
CIK: 0000315293
Period of Report: 2011-11-12

Reporting Person: Davies Christa (EVP and CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-11-12	Common Stock	M	28333	—	Acquired	79752	Direct
2011-11-12	Common Stock	F	11745	$48.09	Disposed	68007	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-11-12	Restricted Stock Unit Award (Right to Receive)	$	M	28333	Disposed	2011-11-12	Common Stock (28333)	Direct

Footnotes

F1: Shares of common stock acquired upon the vesting of a restricted stock unit award.

F2: Shares of common stock withheld by the issuer for the payment of withholding taxes in connection with the vesting of a restricted stock unit award.

F3: The restricted stock unit award converts to shares of common stock on a 1-for-1 basis.