Andy Marcell - Nov 21, 2025 Form 4 Insider Report for Aon plc (AON)

Role
Global CEO, Solution Lines
Signature
/s/ Colby Alexis - Colby Alexis pursuant to a power of attorney from Andy Marcell
Stock symbol
AON
Transactions as of
Nov 21, 2025
Transactions value $
-$14,512
Form type
4
Date filed
11/25/2025, 08:22 AM
Previous filing
Jul 7, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Marcell Andy Global CEO, Solution Lines 200 EAST RANDOLPH STREET, CHICAGO /s/ Colby Alexis - Colby Alexis pursuant to a power of attorney from Andy Marcell 2025-11-25 0002076043

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AON Class A Ordinary Stock Options Exercise +86 +5.27% 1.72K Nov 21, 2025 Direct F1
transaction AON Class A Ordinary Stock Tax liability -$14.5K -41.9 -2.44% $346.51 1.68K Nov 21, 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 -86 -100% $0.00 0 Nov 21, 2025 Class A Ordinary Shares 86 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 November 21, 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.