Michael Neller - 11 Feb 2022 Form 4 Insider Report for Aon plc (AON)

Role: Principal Accounting Officer
Signature: /s/ Julie Cho- Julie Cho pursuant to a power of attorney from Michael Neller
Issuer symbol: AON
Transactions as of: 11 Feb 2022
Net transactions value: -$49,609
Form type: 4
Filing time: 15 Feb 2022, 19:15:38 UTC
Previous filing: 12 Nov 2021
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	Options Exercise		+119	+38%		429	11 Feb 2022	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	$11,904	-42	-9.8%	$283.42	387	11 Feb 2022	Direct	F2
transaction	AON	Class A Ordinary Stock	Options Exercise		+162	+42%		549	11 Feb 2022	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	$16,155	-57	-10%	$283.42	492	11 Feb 2022	Direct	F2
transaction	AON	Class A Ordinary Stock	Options Exercise		+220	+45%		712	14 Feb 2022	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	$21,551	-77	-11%	$279.88	635	14 Feb 2022	Direct	F2
holding	AON	Class A Ordinary Stock						3,536	11 Feb 2022	By LLC

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	-119	-50%	$0.000000	120	11 Feb 2022	Class A Ordinary Shares	120		Direct	F3, F4
transaction	AON	Restricted Share Unit (Right to Receive)	Options Exercise	$0	-162	-33%	$0.000000	326	11 Feb 2022	Class A Ordinary Shares	326		Direct	F3, F5
transaction	AON	Restrictive Share Unit (Right to Receive)	Options Exercise	$0	-220	-100%	$0.000000^*	0	14 Feb 2022	Class A Ordinary Shares	0		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 withholding 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 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.
F5	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.
F6	A restricted share unit award was granted on February 14, 2019 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.