Darren Zeidel - Mar 15, 2022 Form 4 Insider Report for Aon plc (AON)

Role: General Counsel
Signature: /s/ Julie Cho - Julie Cho pursuant to a power of attorney from Darren Zeidel
Stock symbol: AON
Transactions as of: Mar 15, 2022
Transactions value $: -$45,584
Form type: 4
Date filed: 3/17/2022, 06:53 PM
Previous filing: Mar 1, 2022
Next filing: May 23, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AON	Class A Ordinary Stock	Options Exercise		+148	+0.98%		15.3K	Mar 15, 2022	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	-$20.3K	-66	-0.43%	$307.62	15.2K	Mar 15, 2022	Direct	F2
transaction	AON	Class A Ordinary Stock	Sale	-$25.3K	-82	-0.54%	$308.31	15.1K	Mar 16, 2022	Direct	F3

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	-148	-100%	$0.00^*	0	Mar 15, 2022	Class A Ordinary Shares	148		Direct	F4, F5

* 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 transactions reported were effected pursuant to a trading plan meeting the requirements of SEC Rule 10b5-1 entered into on November 23, 2021.
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 March 15, 2019 and vests in accordance with the terms of the Aon plc 2011 Incentive Compensation Plan: 33 1/3% of the award vests on each of the first through third anniversary of the date of grant.