Aon insider Form 4: Zeidel sells shares at ~$344–$345

Rhea-AI Filing Summary

Aon plc (AON) disclosed a Form 4 showing insider sales by General Counsel Darren Zeidel on 11/05/2025. He sold 7,570 Class A ordinary shares at a weighted average price of $344.42 and 1,230 shares at a weighted average price of $345.17.

Following these transactions, Zeidel beneficially owned 20,253.161 shares directly. Prices reflect multiple same‑day trades within reported ranges.

Insider Trade Summary

Net Seller: 8,800 shares ($3,031,819)

Net Sell 2 txns

Insider Zeidel Darren

Role General Counsel

Sold 8,800 shs ($3.03M)

Type	Security	Shares	Price	Value
Sale	Class A Ordinary Stock	7,570	$344.42	$2.61M
Sale	Class A Ordinary Stock	1,230	$345.17	$425K

Holdings After Transaction: Class A Ordinary Stock — 21,483.161 shares (Direct)

Footnotes (1)

1. The price reported is a weighted average price. Shares were sold in a series of transactions within the same trading day at prices ranging from $344.00 to $344.99, inclusive. Full information regarding the number of shares sold at each separate price is available upon request by the Commission staff, the issuer, or a security holder of the issuer. The price reported is a weighted average price. Shares were sold in a series of transactions within the same trading day at prices ranging from $345.00 to $344.51, inclusive. Full information regarding the number of shares sold at each separate price is available upon request by the Commission staff, the issuer, or a security holder of the issuer.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

Zeidel Darren

(Last) (First) (Middle)

200 EAST RANDOLPH ST.

(Street)

CHICAGO IL 60601

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Aon plc [ AON ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	General Counsel

3. Date of Earliest Transaction (Month/Day/Year)
11/05/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Ordinary Stock	11/05/2025		S		7,570	D	$344.42(1)	21,483.161	D
Class A Ordinary Stock	11/05/2025		S		1,230	D	$345.17(2)	20,253.161	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The price reported is a weighted average price. Shares were sold in a series of transactions within the same trading day at prices ranging from $344.00 to $344.99, inclusive. Full information regarding the number of shares sold at each separate price is available upon request by the Commission staff, the issuer, or a security holder of the issuer.

2. The price reported is a weighted average price. Shares were sold in a series of transactions within the same trading day at prices ranging from $345.00 to $344.51, inclusive. Full information regarding the number of shares sold at each separate price is available upon request by the Commission staff, the issuer, or a security holder of the issuer.

	/s/ Colby Alexis - Colby Alexis pursuant to a power of attorney from Darren Zeidel	11/07/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did AON disclose in this Form 4?

Aon reported insider sales by General Counsel Darren Zeidel on 11/05/2025 of 7,570 and 1,230 Class A shares.

What prices were the AON shares sold at?

Weighted average prices were $344.42 for 7,570 shares and $345.17 for 1,230 shares, executed in multiple trades within stated ranges.

How many AON shares does the insider hold after the sales?

Beneficial ownership after the transactions is 20,253.161 shares, held directly.

What is the insider’s role at Aon (AON)?

The reporting person, Darren Zeidel, is an Officer, serving as General Counsel.

Were the trades part of a Rule 10b5-1 plan?

The excerpt includes the 10b5‑1 checkbox instruction, but it does not indicate that the box was checked.

Were any derivative securities involved?

No derivative transactions are listed; only non-derivative Class A ordinary share sales are reported.