Darren Zeidel - 28 Jul 2026 Form 4 Insider Report for Aon plc (AON)

Reporting relationship: General Counsel
Issuer ticker: AON
Reported as of: 28 Jul 2026
Net transaction value: -$717,750
SEC form: 4
Accepted by SEC: 30 Jul 2026, 17:23:29 UTC
Prior SEC filing: 21 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/ Colby Alexis - Colby Alexis pursuant to a power of attorney from Darren Zeidel

Key filing fact

Darren Zeidel filed Form 4 for Aon plc (AON) on 30 Jul 2026.

Key facts

This page summarizes Darren Zeidel's Form 4 filing for Aon plc (AON).
3 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 30 Jul 2026, 17:23.

Change

Previous filing in this sequence was filed on 21 Jul 2026.
Current net transaction value: -$717,750.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001782945 Primary reporting owner

Zeidel Darren

Relationship: General Counsel
Address: 200 EAST RANDOLPH ST., CHICAGO
Signature: /s/ Colby Alexis - Colby Alexis pursuant to a power of attorney from Darren Zeidel
Signature date: 30 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

AON transaction

Class A Ordinary Stock

Sale

Transaction value: $263,200
Shares: -700
Change %: -5.2%
Price: $376.00
Shares after: 12,704
Date: 28 Jul 2026
Ownership: Direct
Footnotes: F1

AON transaction

Class A Ordinary Stock

Sale

Transaction value: $274,050
Shares: -725
Change %: -5.7%
Price: $378.00
Shares after: 11,979
Date: 28 Jul 2026
Ownership: Direct
Footnotes: F1

AON transaction

Class A Ordinary Stock

Sale

Transaction value: $180,500
Shares: -475
Change %: -4%
Price: $380.00
Shares after: 11,504
Date: 28 Jul 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 1 footnote

Footnote 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.