Aon plc — Director's Dealing 2026

Feb 17, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Aon plc (AON)
CIK: 0000315293
Period of Report: 2026-02-12

Reporting Person: Zeidel Darren (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-12	Class A Ordinary Stock	A	7135	—	Acquired	27388.161	Direct
2026-02-12	Class A Ordinary Stock	F	2695.636	$314.49	Disposed	24692.525	Direct
2026-02-13	Class A Ordinary Stock	M	871	—	Acquired	25563.525	Direct
2026-02-13	Class A Ordinary Stock	F	385.841	$321.7	Disposed	25177.684	Direct
2026-02-13	Class A Ordinary Stock	M	209	—	Acquired	25386.684	Direct
2026-02-13	Class A Ordinary Stock	F	92.585	$321.7	Disposed	25294.099	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-12	Restricted Share Unit (Right to Receive)	$	A	1113	Acquired	2029-02-12	Class A Ordinary Shares (1113)	Direct
2026-02-13	Restricted Share Unit (Right to Receive)	$	M	871	Disposed	2026-02-16	Class A Ordinary Shares (871)	Direct
2026-02-13	Restricted Share Unit (Right to Receive)	$	M	209	Disposed	2028-02-13	Class A Ordinary Shares (209)	Direct

Footnotes

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: 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: 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.

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.

F7: A restricted share unit award was granted on February 13, 2025 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.