AON (AON) Form 144 lists vested and ESPP Class A lots through 06/04/2026

Rhea-AI Filing Summary

AON reported a Form 144 notice concerning potential sales of Class A common shares. The filing lists multiple past issuances and planned resale entries tied to compensation vesting, ESPP purchases and open‑market purchases, with individual lot counts shown by date. The filing records activity through 06/04/2026.

Insights

Securities Compliance Attorney

Rule 144 notice lists specific lots and issuance dates for Class A shares.

The Form 144 excerpt enumerates multiple share lots tied to restricted stock vesting, ESPP purchases, dividend reinvestment and open‑market purchases, with per‑lot share counts and dates such as 02/11/2021 and 02/12/2026. The filing records a reporting date of 06/04/2026.

Because this is a Rule 144 notice, actual sale execution and proceeds are governed by resale conditions and market activity; the filing itself only lists the securities and related lot details. Subsequent trade reports or broker records would show whether sales occurred.

Key Figures

Reporting date: 06/04/2026 Lot: 02/11/2021: 127 shares Lot: 02/13/2021: 68 shares +3 more

6 metrics

Reporting date 06/04/2026 reporting date shown in securities table

Lot: 02/11/2021 127 shares Restricted Stock Vesting on 02/11/2021

Lot: 02/13/2021 68 shares Restricted Stock Vesting on 02/13/2021

Lot: 03/15/2024 511 shares Restricted Stock Vesting on 03/15/2024

Lot: 02/12/2026 4,224 shares Restricted Stock Vesting on 02/12/2026

Lot: 03/15/2026 293 shares Restricted Stock Vesting on 03/15/2026

Key Terms

Rule 144, Restricted Stock Vesting, ESPP Purchase, Dividend Reinvestment

4 terms

Rule 144 regulatory

"Form 144 notice lists securities to be sold under Rule 144 conditions"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Vesting financial

"Class A | 02/11/2021 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

ESPP Purchase financial

"Class A | 06/30/2021 | ESPP Purchase | Issuer"

Dividend Reinvestment financial

"Class A | 02/16/2021 | Dividend Reinvestment | Issuer"

Dividend reinvestment is when the money earned from a company's profit sharing, called dividends, is automatically used to buy more shares of that company instead of being received as cash. This process helps investors grow their holdings over time without extra effort, much like using earned interest to buy more of a savings account. It encourages long-term investment growth by continuously increasing the amount of shares owned.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Class A	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	5766	1871208.54	213576949	06/04/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Class A	02/26/2016	Open Market Purchase	Issuer			11	02/26/2016	Cash
Class A	03/02/2017	Open Market Purchase	Issuer			3	03/02/2017	Cash
Class A	02/11/2021	Restricted Stock Vesting	Issuer			127	02/11/2021	Compensation
Class A	02/13/2021	Restricted Stock Vesting	Issuer			68	02/13/2021	Compensation
Class A	02/16/2021	Dividend Reinvestment	Issuer			1	02/16/2021	Cash
Class A	06/30/2021	ESPP Purchase	Issuer			1	06/30/2021	Cash
Class A	12/31/2021	ESPP Purchase	Issuer			9	12/31/2021	Cash
Class A	03/15/2024	Restricted Stock Vesting	Issuer			511	03/15/2024	Compensation
Class A	05/16/2024	Dividend Reinvestment	Issuer			14	05/16/2024	Cash
Class A	06/28/2024	ESPP Purchase	Issuer			29	06/28/2024	Cash
Class A	12/31/2024	ESPP Purchase	Issuer			28	12/31/2024	Cash
Class A	03/15/2025	Restricted Stock Vesting	Issuer			312	03/15/2025	Compensation
Class A	06/30/2025	ESPP Purchase	Issuer			23	06/30/2025	Cash
Class A	11/21/2025	Restricted Stock Vesting	Issuer			88	11/21/2025	Compensation
Class A	12/31/2025	ESPP Purchase	Issuer			24	12/31/2025	Cash
Class A	02/12/2026	Restricted Stock Vesting	Issuer			4224	02/12/2026	Compensation
Class A	03/15/2026	Restricted Stock Vesting	Issuer			293	03/15/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does AON's Form 144 filing mean for shareholders?

It notifies the SEC of potential resale of Class A shares under Rule 144. The filing lists dated lots from compensation vesting and ESPP purchases through 06/04/2026, but does not confirm completed market sales.

How many share lots are listed in the AON Form 144 excerpt?

The excerpt lists multiple dated lots, including entries such as 127 shares on 02/11/2021 and 4,224 shares on 02/12/2026. It enumerates prior issuances, vesting and ESPP purchases by date.

Does AON's Form 144 state proceeds or pricing for the sales?

No. The filing lists lot counts and dates but does not provide sale prices or proceeds. Pricing and proceeds would appear in subsequent trade confirmations or separate disclosures if sales occur.

Are the listed shares from compensation or purchases for AON?

Yes. The excerpt explicitly labels many lots as Restricted Stock Vesting, ESPP Purchase, Dividend Reinvestment, and Open Market Purchase, indicating source of the listed Class A shares.

Is the filing date shown for AON's Form 144?

The excerpt shows 06/04/2026 alongside the securities table, which appears to be the reporting date tied to the listed entries for Class A shares on the NYSE.