Jillian Slyfield - 19 May 2023 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: 19 May 2023
Net transactions value: -$22,571
Form type: 4
Filing time: 23 May 2023, 17:02:49 UTC
Previous filing: 17 Mar 2023
Next filing: 19 Sep 2023
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	+8.3%		1,369	19 May 2023	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	$12,103	-37	-2.7%	$327.12	1,332	19 May 2023	Direct	F2
transaction	AON	Class A Ordinary Stock	Options Exercise		+52	+3.9%		1,384	19 May 2023	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	$5,888	-18	-1.3%	$327.12	1,366	19 May 2023	Direct	F2
transaction	AON	Class A Ordinary Stock	Options Exercise		+40	+2.9%		1,406	19 May 2023	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	$4,580	-14	-1%	$327.12	1,392	19 May 2023	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	-100%	$0.000000^*	0	19 May 2023	Class A Ordinary Shares	105		Direct	F3, F4
transaction	AON	Restricted Share Unit (Right to Receive)	Options Exercise	$0	-52	-34%	$0.000000	103	19 May 2023	Class A Ordinary Shares	52		Direct	F3, F5
transaction	AON	Restricted Share Unit (Right to Receive)	Options Exercise	$0	-40	-25%	$0.000000	117	19 May 2023	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 $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.