Mindy Simon - Nov 14, 2025 Form 4 Insider Report for Aon plc (AON)

Role
Chief Operating Officer
Signature
/s/ Colby Alexis - Colby Alexis pursuant to a power of attorney from Mindy Simon
Stock symbol
AON
Transactions as of
Nov 14, 2025
Transactions value $
-$212,253
Form type
4
Date filed
11/18/2025, 04:03 PM
Previous filing
Feb 18, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Simon Mindy F. Chief Operating Officer 200 EAST RANDOLPH ST., CHICAGO /s/ Colby Alexis - Colby Alexis pursuant to a power of attorney from Mindy Simon 2025-11-18 0001925598

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AON Class A Ordinary Stock Options Exercise +1.97K +108.5% 3.79K Nov 14, 2025 Direct F1
transaction AON Class A Ordinary Stock Tax liability -$212K -606 -16.01% $350.13 3.18K Nov 14, 2025 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 -1.97K -100% $0.00 0 Nov 14, 2025 Class A Ordinary Shares 1.97K 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 US$0.01 per share issued to the reporting person.
F4 A restricted share unit award was granted on November 15, 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.