Lisa Stevens - Feb 22, 2022 Form 4 Insider Report for Aon plc (AON)

Role: Chief People Officer
Signature: /s/ Julie Cho- Julie Cho pursuant to power of attorney from Lisa Stevens
Stock symbol: AON
Transactions as of: Feb 22, 2022
Transactions value $: -$90,437
Form type: 4
Date filed: 2/24/2022, 06:12 PM
Previous filing: Feb 22, 2022
Next filing: Feb 14, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AON	Class A Ordinary Stock	Options Exercise		+639	+16.23%		4.58K	Feb 22, 2022	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	-$90.4K	-317	-6.93%	$285.29	4.26K	Feb 22, 2022	Direct	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	AON	Restrictive Share Unit (Right to Receive)	Options Exercise	$0	-639	-33.33%	$0.00	1.28K	Feb 22, 2022	Class A Ordinary Shares	639		Direct	F3, F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.
F2	Class A Ordinary Shares withheld by the issuer for payment of withholding taxes in connection with the vesting of the award.
F3	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.
F4	A restricted share unit award was granted on February 22, 2019 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.