Jillian Slyfield - May 20, 2022 Form 4 Insider Report for Aon plc (AON)

Role: Chief Innovation Officer
Signature: /s/ Julie Cho - Julie Cho pursuant to a power of attorney from Jillian Slyfield
Stock symbol: AON
Transactions as of: May 20, 2022
Transactions value $: -$18,127
Form type: 4
Date filed: 5/24/2022, 07:41 PM
Previous filing: Mar 17, 2022
Next filing: Sep 20, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AON	Class A Ordinary Stock	Options Exercise		+105	+15.41%		786	May 20, 2022	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	-$9.72K	-37	-4.7%	$262.71	749	May 20, 2022	Direct	F2
transaction	AON	Class A Ordinary Stock	Options Exercise		+52	+6.94%		801	May 20, 2022	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	-$4.73K	-18	-2.25%	$262.71	783	May 20, 2022	Direct	F2
transaction	AON	Class A Ordinary Stock	Options Exercise		+40	+5.11%		823	May 20, 2022	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	-$3.68K	-14	-1.7%	$262.71	809	May 20, 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	Restricted Share Unit (Right to Receive)	Options Exercise	$0	-105	-50%	$0.00	105	May 20, 2022	Class A Ordinary Shares	105		Direct	F3, F4
transaction	AON	Restricted Share Unit (Right to Receive)	Options Exercise	$0	-52	-25.12%	$0.00	155	May 20, 2022	Class A Ordinary Shares	52		Direct	F3, F5
transaction	AON	Restricted Share Unit (Right to Receive)	Options Exercise	$0	-40	-20.3%	$0.00	157	May 20, 2022	Class A Ordinary Shares	40		Direct	F3, F6

* 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 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 May 21, 2018 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.
F5	A restricted share unit award was granted on May 21, 2020 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.
F6	A restricted share unit award was granted on May 21, 2021 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.