Andy Marcell - 21 Nov 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
Issuer symbol
AON
Transactions as of
21 Nov 2025
Net transactions value
-$14,512
Form type
4
Filing time
25 Nov 2025, 08:22:26 UTC
Previous filing
07 Jul 2025
Next filing
17 Feb 2026
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 25 Nov 2025 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 +5.3% 1,719 21 Nov 2025 Direct F1
transaction AON Class A Ordinary Stock Tax liability $14,512 -42 -2.4% $346.51 1,677 21 Nov 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% $0.000000 0 21 Nov 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.