Jillian Slyfield - 20 May 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
Issuer symbol: AON
Transactions as of: 20 May 2022
Net transactions value: -$18,127
Form type: 4
Filing time: 24 May 2022, 19:41:41 UTC
Previous filing: 17 Mar 2022
Next filing: 20 Sep 2022
SEC: View on sec.gov

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%		786	20 May 2022	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	$9,720	-37	-4.7%	$262.71	749	20 May 2022	Direct	F2
transaction	AON	Class A Ordinary Stock	Options Exercise		+52	+6.9%		801	20 May 2022	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	$4,729	-18	-2.2%	$262.71	783	20 May 2022	Direct	F2
transaction	AON	Class A Ordinary Stock	Options Exercise		+40	+5.1%		823	20 May 2022	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	$3,678	-14	-1.7%	$262.71	809	20 May 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%	$0.000000	105	20 May 2022	Class A Ordinary Shares	105		Direct	F3, F4
transaction	AON	Restricted Share Unit (Right to Receive)	Options Exercise	$0	-52	-25%	$0.000000	155	20 May 2022	Class A Ordinary Shares	52		Direct	F3, F5
transaction	AON	Restricted Share Unit (Right to Receive)	Options Exercise	$0	-40	-20%	$0.000000	157	20 May 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.