Aon (AON) director’s family partnership acquires 4,000 company shares

Rhea-AI Filing Summary

Aon plc director Lester B. Knight reported an indirect open-market purchase of Class A Ordinary Stock through a family partnership. On February 10, 2026, the family partnership bought 4,000 shares at a weighted average price of $319.2391 per share.

The filing notes that trades that day occurred between $319.00 and $319.47. After this transaction, the family partnership held 143,000 shares. The report also lists 3,739 shares held directly, 124,604 shares held by Knight’s wife, and 26,033 shares held in a personal revocable trust.

Insider Trade Summary

Net Buyer: 4,000 shares ($1,276,956)

Net Buy 4 txns

Insider KNIGHT LESTER B

Role Director

Bought 4,000 shs ($1.28M)

Type	Security	Shares	Price	Value
Purchase	Class A Ordinary Stock	4,000	$319.2391	$1.28M
holding	Class A Ordinary Stock	--	--	--
holding	Class A Ordinary Stock	--	--	--
holding	Class A Ordinary Stock	--	--	--

Holdings After Transaction: Class A Ordinary Stock — 143,000 shares (Indirect, By Family Partnership); Class A Ordinary Stock — 3,739 shares (Direct)

Footnotes (1)

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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^*

KNIGHT LESTER B

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
02/10/2026

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	02/10/2026		P		4,000	A	$319.2391(1)	143,000	I	By Family Partnership
Class A Ordinary Stock								3,739	D
Class A Ordinary Stock								124,604	I	By Wife
Class A Ordinary Stock								26,033	I	Personal Revocable Trust

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 purchased in a series of transactions within the same trading day at prices ranging from $319.00 to $319.47, inclusive. Full information regarding the number of shares purchased 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 Lester Knight	02/12/2026
	** 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.

FAQ

What insider transaction did AON director Lester B. Knight report?

A family partnership associated with AON director Lester B. Knight bought 4,000 Class A Ordinary shares in the open market. The weighted average purchase price was $319.2391 per share, based on trades executed on February 10, 2026.

At what price were the AON shares purchased in this Form 4 filing?

The reported weighted average price was $319.2391 per AON Class A Ordinary share. Trades that day occurred in a range from $319.00 to $319.47, with detailed trade breakdowns available to regulators, the issuer, or security holders upon request.

How many AON shares does the family partnership hold after this transaction?

After the reported open-market purchase, the family partnership linked to Lester B. Knight beneficially owned 143,000 AON Class A Ordinary shares. This figure represents the indirect holdings through that partnership as reported in the Form 4 filing.

What other AON share holdings are reported for Lester B. Knight?

The Form 4 lists 3,739 AON shares held directly, 124,604 shares held by Knight’s wife, and 26,033 shares held in a personal revocable trust. These positions are reported as beneficial ownership across direct and indirect accounts.

What does the weighted average price disclosure mean in the AON Form 4?

The weighted average price combines multiple trades executed the same day into a single average figure. For this AON transaction, shares were bought between $319.00 and $319.47, and the precise share counts at each price are available on request.

Is the AON share purchase reported as direct or indirect ownership?

The 4,000-share AON purchase is reported as indirect ownership through a family partnership. The Form 4 specifies the ownership code as indirect and describes the nature of ownership as “By Family Partnership” for this block of shares.