Lester B. Knight - 25 Jun 2026 Form 4 Insider Report for Aon plc (AON)

Reporting relationship: Director
Issuer ticker: AON
Reported as of: 25 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 29 Jun 2026, 18:44:05 UTC
Prior SEC filing: 12 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Colby Alexis - Colby Alexis pursuant to a power of attorney from Lester Knight

Key filing fact

Lester B. Knight filed Form 4 for Aon plc (AON) on 29 Jun 2026.

Key facts

This page summarizes Lester B. Knight's Form 4 filing for Aon plc (AON).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 29 Jun 2026, 18:44.

Change

Previous filing in this sequence was filed on 12 Feb 2026.
Current net transaction value: $0.

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 0001023262 Primary reporting owner

KNIGHT LESTER B

Relationship: Director
Address: 200 EAST RANDOLPH ST., CHICAGO
Signature: /s/ Colby Alexis - Colby Alexis pursuant to a power of attorney from Lester Knight
Signature date: 29 Jun 2026

Reported non-derivative transactions

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

AON transaction

Class A Ordinary Stock

Award

Transaction value
Shares: +1,488
Change %: +40%
Price
Shares after: 5,227
Date: 25 Jun 2026
Ownership: Direct
Footnotes: F1

AON holding

Class A Ordinary Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 124,604
Date: 25 Jun 2026
Ownership: By Wife

AON holding

Class A Ordinary Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 143,000
Date: 25 Jun 2026
Ownership: By Family Partnership

AON holding

Class A Ordinary Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 26,033
Date: 25 Jun 2026
Ownership: Personal Revocable Trust

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with Irish law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.