Darren Zeidel - Feb 15, 2024 Form 4 Insider Report for Aon plc (AON)

Role: General Counsel
Signature: /s/ Colby Alexis - Colby Alexis pursuant to a power of attorney from Darren Zeidel
Stock symbol: AON
Transactions as of: Feb 15, 2024
Transactions value $: -$1,590,184
Form type: 4
Date filed: 2/20/2024, 06:41 PM
Previous filing: Feb 13, 2024
Next filing: May 23, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AON	Class A Ordinary Stock	Award		+11.1K	+46.84%		34.8K	Feb 15, 2024	Direct	F1
transaction	AON	Class A Ordinary Stock	Tax liability	-$1.42M	-4.51K	-12.96%	$314.37	30.3K	Feb 15, 2024	Direct	F2
transaction	AON	Class A Ordinary Stock	Options Exercise		+374	+1.23%		30.7K	Feb 16, 2024	Direct	F3
transaction	AON	Class A Ordinary Stock	Tax liability	-$51.6K	-166	-0.54%	$311.24	30.5K	Feb 16, 2024	Direct	F2
transaction	AON	Class A Ordinary Stock	Options Exercise		+870	+2.85%		31.4K	Feb 16, 2024	Direct	F3
transaction	AON	Class A Ordinary Stock	Tax liability	-$120K	-385	-1.23%	$311.24	31K	Feb 16, 2024	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	-374	-50%	$0.00	374	Feb 16, 2024	Class A Ordinary Shares	374		Direct	F4, F5
transaction	AON	Restricted Share Unit (Right to Receive)	Options Exercise	$0	-870	-33.32%	$0.00	1.74K	Feb 16, 2024	Class A Ordinary Shares	870		Direct	F4, F6

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents Class A Ordinary Shares issued upon the settlement of performance share unit awards originally granted approximately three years ago under the sixteenth cycle of the Company's Leadership Performance Program. The number of shares issued was determined by the Organization and Compensation Committee of the Board of Directors on February 15, 2024, based on the Company's performance for the period from January 1, 2021 to December 31, 2023.
F2	Class A Ordinary Shares withheld by the issuer for payment of taxes in connection with the vesting of the award.
F3	Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.
F4	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.
F5	A restricted share unit award was granted on February 17, 2022 and vests in accordance with the terms of the Aon plc 2011 Incentive Compensation Plan, as amended and restated: 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 16, 2023 and vests in accordance with the terms of the Aon plc 2011 Incentive Compensation Plan, as amended and restated: 33 1/3% of the award vests on each of the first through third anniversary of the date of grant.