Aon (AON) director Richard Notebaert gifts 1,438 shares, keeps large stake

Rhea-AI Filing Summary

Aon plc director Richard C. Notebaert reported a bona fide gift of 1,438 shares of Class A Ordinary Stock. The transfer carried no sale price, indicating a personal gift rather than a market transaction. After the gift, he directly holds 27,737.97 shares, so he retains a substantial stake.

Insider Trade Summary

1,438 shares gifted

Mixed 1 txn

Insider NOTEBAERT RICHARD C

Role null

Type	Security	Shares	Price	Value
Gift	Class A Ordinary Stock	1,438	$0.00	--

Holdings After Transaction: Class A Ordinary Stock — 27,737.97 shares (Direct, null)

Footnotes (1)

Key Figures

Shares gifted: 1,438 shares Gift price per share: $0.00 per share Shares held after gift: 27,737.97 shares

3 metrics

Shares gifted 1,438 shares Bona fide gift of Class A Ordinary Stock

Gift price per share $0.00 per share Non-sale transfer value

Shares held after gift 27,737.97 shares Direct holdings following transaction

Key Terms

bona fide gift, Class A Ordinary Stock, Form 4

3 terms

bona fide gift financial

"transaction_code_description": "Bona fide gift""

A bona fide gift is a genuine, voluntary transfer of money, property, or benefits from one party to another made without expectation of repayment, services, or hidden conditions. Investors care because such gifts can affect company disclosures, related‑party transaction rules, tax treatment, and perceived conflicts of interest; think of it like someone giving you a present with no strings attached — but on a corporate scale, auditors and regulators need to verify it really is unconditional.

Class A Ordinary Stock financial

"security_title": "Class A Ordinary Stock""

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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^*

NOTEBAERT RICHARD C

(Last) (First) (Middle)

200 EAST RANDOLPH ST.

(Street)

CHICAGO ILLINOIS 60601

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/12/2026

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

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

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

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	05/12/2026		G		1,438	D	$0	27,737.97	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:

	/s/ Colby Alexis - Colby Alexis pursuant to a power of attorney from Richard Notebaert	05/14/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Aon (AON) director Richard Notebaert report?

Richard C. Notebaert reported a bona fide gift of 1,438 Aon Class A Ordinary shares. This is a non-sale transfer recorded at $0.00 per share, reflecting a personal disposition rather than an open-market trade or option exercise.

How many Aon (AON) shares does Richard Notebaert hold after this Form 4?

After the reported gift, Richard C. Notebaert directly holds 27,737.97 Aon Class A Ordinary shares. This figure, disclosed in the Form 4, shows he maintains a meaningful ongoing equity position despite the gifted shares.

Was Richard Notebaert’s Aon (AON) transaction a sale or a gift?

The transaction was a bona fide gift of 1,438 Aon shares, not a sale. The Form 4 uses transaction code G, and the price per share is listed as $0.00, confirming a gift transfer rather than a market sale.

Does Richard Notebaert’s Aon (AON) Form 4 involve stock options or derivatives?

The filing does not report any derivative or option activity for Richard C. Notebaert. It shows only a single non-derivative transaction: a bona fide gift of 1,438 Class A Ordinary shares and no remaining derivative positions in the derivative summary.

How significant is the 1,438-share gift in Richard Notebaert’s Aon (AON) holdings?

The Form 4 shows a gift of 1,438 shares and post-transaction direct holdings of 27,737.97 shares. This indicates only a portion of his total position was transferred, and he continues to hold a sizable equity stake in Aon.