Lisa Stevens - Feb 22, 2024 Form 4 Insider Report for Aon plc (AON)

Role: Chief People Officer
Signature: /s/ Colby Alexis - Colby Alexis pursuant to a power of attorney from Lisa Stevens
Stock symbol: AON
Transactions as of: Feb 22, 2024
Transactions value $: -$4,200,505
Form type: 4
Date filed: 2/26/2024, 04:22 PM
Previous filing: Feb 20, 2024
Next filing: Mar 8, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AON	Class A Ordinary Stock	Options Exercise		+639	+2.81%		23.4K	Feb 22, 2024	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	-$102K	-324	-1.38%	$315.36	23.1K	Feb 22, 2024	Direct	F2
transaction	AON	Class A Ordinary Stock	Sale	-$4.1M	-13K	-56.34%	$315.26	10.1K	Feb 23, 2024	Direct
transaction	AON	Class A Ordinary Stock	Gift	$0	-35	-0.35%	$0.00	10K	Feb 23, 2024	Direct

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	-639	-100%	$0.00^*	0	Feb 22, 2024	Class A Ordinary Shares	639		Direct	F3, F4

* 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 February 22, 2019 and vests in accordance with the terms of the Aon plc 2011 Incentive Compensation Plan, as amended and restated: 20% of the award vests on each of the first through fifth anniversary of the date of grant.