Aon plc — Director's Dealing 2012

Jul 17, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Aon plc (AON)
CIK: 0000315293
Period of Report: 2012-07-15

Reporting Person: LIEB PETER M (EVP & General Counsel)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-07-15	Class A Ordinary Shares	M	11667	—	Acquired	15854.82	Direct
2012-07-15	Class A Ordinary Shares	F	4835	$47.63	Disposed	11019.82	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-07-15	Restricted Stock Unit Award (Right to Receive)	$	M	11667	Disposed	2012-07-15	Class A Ordinary Shares (11667)	Direct
2012-07-15	Phantom Stock	$	A	6.83	Acquired		Class A Ordinary Shares (6.83)	Direct

Footnotes

F1: Class A Ordinary Shares acquired upon the vesting of a restricted stock unit award.

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

F3: Includes shares acquired pursuant to dividend reinvestment and Includes 188.632 shares acquired under the Aon employee stock purchase plan.

F4: The restricted stock unit award converts to Class A Ordinary Shares on a 1-for-1 basis.

F5: Each share of phantom stock acquired under the issuer's deferred compensation plan represents the right to receive the cash value thereof.

F6: Shares of phantom stock are payable in cash in ten annual installments following the reporting person's retirement. Subject to the issuer's compliance procedures for its Section 16 reporting officers, the reporting person may transfer Class A Ordinary Shares into an alternative investment account under the issuer's deferred compensation plan.