Darren Zeidel - 17 Feb 2026 Form 4 Insider Report for Aon plc (AON)

Signature
/s/ Colby Alexis - Colby Alexis pursuant to a power of attorney from Darren Zeidel
Issuer symbol
AON
Transactions as of
17 Feb 2026
Net transactions value
-$1,641,982
Form type
4
Filing time
19 Feb 2026, 17:00:00 UTC
Previous filing
17 Feb 2026
Next filing
02 Mar 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Zeidel Darren General Counsel 200 EAST RANDOLPH ST., CHICAGO /s/ Colby Alexis - Colby Alexis pursuant to a power of attorney from Darren Zeidel 19 Feb 2026 0001782945

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AON Class A Ordinary Stock Sale $1,641,982 -5,040 -20% $325.79 20,254 17 Feb 2026 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 The transaction reported was effected pursuant to a trading plan meeting the requirements of SEC Rule 10b5-1 entered into on November 5, 2025.