Lisa Stevens - Feb 10, 2023 Form 4 Insider Report for Aon plc (AON)

Role: Chief People Officer
Signature: /s/ Julie Cho - Julie Cho pursuant to a power of attorney from Lisa Stevens
Stock symbol: AON
Transactions as of: Feb 10, 2023
Transactions value $: -$94,012
Form type: 4
Date filed: 2/14/2023, 07:32 PM
Previous filing: Feb 24, 2022
Next filing: Feb 21, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AON	Class A Ordinary Stock	Small acquisition under Rule 16a-6	$2.38K	+8.52	+0.2%	$279.93	4.27K	May 16, 2022	Direct
transaction	AON	Class A Ordinary Stock	Small acquisition under Rule 16a-6	$2.41K	+8.01	+0.19%	$300.58	4.31K	Aug 15, 2022	Direct	F1
transaction	AON	Class A Ordinary Stock	Small acquisition under Rule 16a-6	$2.41K	+8.24	+0.19%	$292.49	4.31K	Nov 16, 2022	Direct
transaction	AON	Class A Ordinary Stock	Options Exercise		+509	+11.72%		4.85K	Feb 10, 2023	Direct	F2, F3
transaction	AON	Class A Ordinary Stock	Tax liability	-$59.8K	-188	-3.87%	$317.82	4.67K	Feb 10, 2023	Direct	F4
transaction	AON	Class A Ordinary Stock	Options Exercise		+373	+7.99%		5.04K	Feb 13, 2023	Direct	F2
transaction	AON	Class A Ordinary Stock	Tax liability	-$41.5K	-129	-2.56%	$321.43	4.91K	Feb 13, 2023	Direct	F4

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	Restricted Share Unit (Right to Receive)	Options Exercise	$0	-509	-50%	$0.00	509	Feb 10, 2023	Class A Ordinary Shares	509		Direct	F5, F6
transaction	AON	Restrictive Share Unit (Right to Receive)	Options Exercise	$0	-373	-100%	$0.00^*	0	Feb 13, 2023	Class A Ordinary Shares	373		Direct	F5, F7

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

Explanation of Responses:

Id	Content
F1	Includes shares acquired under Aon employee stock purchase plan on June 30, 2022.
F2	Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.
F3	Includes shares acquired under Aon employee stock purchase plan on December 30, 2022.
F4	Class A Ordinary Shares withheld by the issuer for payment of taxes in connection with the vesting of the award.
F5	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.
F6	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.
F7	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.