Darren Zeidel - Feb 11, 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: Feb 11, 2022
Transactions value $: -$71,705
Form type: 4
Date filed: 2/15/2022, 05:58 PM
Previous filing: Dec 28, 2021
Next filing: Feb 22, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AON	Class A Ordinary Stock	Options Exercise		+112	+0.9%		12.5K	Feb 11, 2022	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	-$14.2K	-50	-0.4%	$283.42	12.5K	Feb 11, 2022	Direct	F2
transaction	AON	Class A Ordinary Stock	Options Exercise		+458	+3.67%		13K	Feb 11, 2022	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	-$57.5K	-203	-1.57%	$283.42	12.7K	Feb 11, 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	-112	-50%	$0.00	112	Feb 11, 2022	Class A Ordinary Shares	112		Direct	F3, F4
transaction	AON	Restricted Share Unit (Right to Receive)	Options Exercise	$0	-458	-33.33%	$0.00	916	Feb 11, 2022	Class A Ordinary Shares	458		Direct	F3, 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 the payment of taxes in connection with the vesting of a restricted share unit
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 13, 2020 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.
F5	A restricted share unit award was granted on February 11, 2021 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.