Lori Goltermann - 12 Feb 2026 Form 4 Insider Report for Aon plc (AON)

Role: CEO, Regions & North America
Signature: /s/ Colby Alexis - Colby Alexis pursuant to a power of attorney from Lori Goltermann
Issuer symbol: AON
Transactions as of: 12 Feb 2026
Net transactions value: -$853,318
Form type: 4
Filing time: 17 Feb 2026, 17:12:55 UTC
Previous filing: 25 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Goltermann Lori	CEO, Regions & North America	200 EAST RANDOLPH STREET, CHICAGO	/s/ Colby Alexis - Colby Alexis pursuant to a power of attorney from Lori Goltermann	17 Feb 2026	0002062798

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AON	Class A Ordinary Stock	Award		+6,937	+304%		9,216	12 Feb 2026	Direct	F1, F2
transaction	AON	Class A Ordinary Stock	Tax liability	$853,318	-2,713	-29%	$314.49	6,503	12 Feb 2026	Direct	F3

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)	Award	$0	+1,113		$0.000000	1,113	12 Feb 2026	Class A Ordinary Shares	1,113		Direct	F4, F5

* 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 eighteenth 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 12, 2026, based on the Company's performance for the period from January 1, 2023 to December 31, 2025.
F2	Includes shares acquired under the Aon employee stock purchase plan on December 31, 2025.
F3	Class A Ordinary Shares withheld by the issuer for payment of taxes in connection with the vesting of the 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	The restricted share unit award vests in accordance with the terms of the Aon plc 2011 Incentive Compensation Plan, as amended and restated, as follows: 33 1/3% of the award vests on each of the first through third anniversary of the date of the grant.