Lisa Stevens - 11 Feb 2022 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
Issuer symbol: AON
Transactions as of: 11 Feb 2022
Net transactions value: -$88,108
Form type: 4
Filing time: 14 Feb 2022, 18:03:47 UTC
Next filing: 22 Feb 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	Small acquisition under Rule 16a-6	$564	+2	+0.2%	$254.27	1,108	17 May 2021	Direct
transaction	AON	Class A Ordinary Stock	Small acquisition under Rule 16a-6	$586	+2	+0.18%	$278.61	1,150	16 Aug 2021	Direct	F1
transaction	AON	Class A Ordinary Stock	Small acquisition under Rule 16a-6	$587	+2	+0.17%	$304.46	1,152	16 Nov 2021	Direct
transaction	AON	Class A Ordinary Stock	Options Exercise		+373	+31%		1,560	11 Feb 2022	Direct	F2, F3
transaction	AON	Class A Ordinary Stock	Tax liability	$36,561	-129	-8.3%	$283.42	1,431	11 Feb 2022	Direct	F4
transaction	AON	Class A Ordinary Stock	Options Exercise		+508	+35%		1,939	11 Feb 2022	Direct	F2
transaction	AON	Class A Ordinary Stock	Tax liability	$53,283	-188	-9.7%	$283.42	1,751	11 Feb 2022	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	Restrictive Share Unit (Right to Receive)	Options Exercise	$0	-373	-50%	$0.000000	373	11 Feb 2022	Class A Ordinary Shares	373		Direct	F5, F6
transaction	AON	Restricted Share Unit (Right to Receive)	Options Exercise	$0	-508	-33%	$0.000000	1,018	11 Feb 2022	Class A Ordinary Shares	508		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, 2021.
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 31, 2021.
F4	Class A Ordinary Shares withheld by the issuer for payment of withholding 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 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.
F7	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.