Aon plc — Director's Dealing 2020

May 21, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Aon plc (AON)
CIK: 0000315293
Period of Report: 2020-05-19

Reporting Person: Zeidel Darren (General Counsel)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-05-19	Class A Ordinary Stock	M	157	—	Acquired	8941	Direct
2020-05-19	Class A Ordinary Stock	F	70	$195.54	Disposed	8871	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-05-19	Restrictive Share Unit (Right to Receive)	$	M	157	Disposed	2022-05-19	Class A Ordinary Shares (157)	Direct

Footnotes

F1: On April 1, 2020, Aon plc, an Irish public limited company (the "Company"), became the successor of Aon plc, a public limited company incorporated under the laws of England and Wales ("Aon UK"), pursuant to a scheme of arrangement under English law. Pursuant to the transaction, all outstanding Class A ordinary shares of Aon UK were exchanged, on a one-for-one basis, for Class A ordinary shares of the Company, and Aon UK became a wholly owned subsidiary of the Company. The transaction did not alter the proportionate interests of security holders.

F2: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

F3: Class A Ordinary Shares withheld by the issuer for the payment of withholding taxes in connection with the vesting of a restricted shares unit.

F4: The restricted share unit award converts to Class A Ordinary Shares on a 1-for-1 basis. In accordance with Irish law, the reporting person agreed to pay the issuer the nominal value of US$0.01 per share issued to the reporting person.

F5: A restricted share unit award was granted on May 19, 2017 and vests in accordance with the terms of the Aon plc 2011 Incentive Compensation Plan: 20% of the award vests on each of the first through fifth anniversary of the date of grant.