AON insider plans sale of 1,950 Class A shares

Darren E. Zeidel filed to sell up to 1,950 Class A shares of AON plc through Fidelity Brokerage Services on or about 07/17/2026, with an estimated aggregate sale price of $725,500.00 on the NYSE.

Rhea-AI Filing Summary

Darren E. Zeidel filed to sell up to 1,950 Class A shares of AON plc through Fidelity Brokerage Services on or about 07/17/2026, with an estimated aggregate sale price of $725,500.00 on the NYSE.

The notice also reports a prior sale of 600 Class A shares on 07/07/2026 for $216,000.00, and lists multiple restricted stock vesting events from 2023–2025 as the compensation source of the shares.

Key Figures

Planned shares to be sold: 1,950 shares Estimated aggregate sale price: $725,500.00 Recent shares sold: 600 shares +3 more

6 metrics

Planned shares to be sold 1,950 shares Class A shares covered by the notice for sale on or about 07/17/2026

Estimated aggregate sale price $725,500.00 Estimated total value of the 1,950 Class A shares to be sold

Recent shares sold 600 shares Class A shares sold on 07/07/2026 during the past three months

Recent sale proceeds $216,000.00 Aggregate proceeds from the 600 Class A shares sold on 07/07/2026

Largest single vesting lot 856 shares Restricted Stock Vesting in Class A on 02/13/2025 as compensation from issuer

Broker address street number 900 Street number for Fidelity Brokerage Services LLC on Salem Street, Smithfield RI

Key Terms

Form 144, Restricted Stock Vesting, Compensation, Fidelity Brokerage Services LLC

4 terms

Form 144 regulatory

"144: Securities To Be Sold"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock Vesting financial

"Class A | 02/13/2023 | 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.

Compensation financial

"02/17/2025 | Compensation"

Fidelity Brokerage Services LLC financial

"Class A | Fidelity Brokerage Services LLC 900 Salem Street"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the AON Form 144 filing by Darren E. Zeidel disclose?

It discloses a planned sale of up to 1,950 Class A shares of AON plc with an estimated aggregate sale price of $725,500.00, and identifies these shares as coming from prior restricted stock vesting compensation awards.

How many AON (AON) shares is Darren E. Zeidel planning to sell and when?

The filing covers up to 1,950 Class A shares of AON plc, expected to be sold on or about 07/17/2026 through Fidelity Brokerage Services on the NYSE marketplace.

What is the estimated dollar value of the AON shares in the Form 144 filing?

The planned sale is estimated at an aggregate price of $725,500.00 for the 1,950 Class A shares of AON plc referenced in the Form 144 notice.

Does the AON Form 144 show any recent sales by Darren E. Zeidel?

Yes. It reports that on 07/07/2026, 600 Class A shares of AON plc were sold for a total of $216,000.00, disclosed under securities sold during the past three months.

What is the source of the AON shares listed in Darren E. Zeidel’s Form 144?

The shares are identified as originating from multiple Restricted Stock Vesting events between 02/13/2023 and 02/17/2025, received from the issuer as compensation in Class A stock.

Which broker and market are used for the AON shares in this Form 144?

The planned transaction lists Fidelity Brokerage Services LLC, located in Smithfield, RI, as broker, and indicates that the Class A shares will trade on the NYSE.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 07/17/2026 - 02:39 PM EDT Learn about SEC filing dates

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	0001782945
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Aon plc
SEC File Number	001-07933
Address of Issuer	15 GEORGES QUAY DUBLIN 2 IRELAND D02 VR98
Phone	35312666000
Name of Person for Whose Account the Securities are To Be Sold	Zeidel Darren
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	Officer

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	1950	725500.00	213576949	07/17/2026	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	02/13/2023	Restricted Stock Vesting	Issuer			20	02/13/2023	Compensation
Class A	05/21/2023	Restricted Stock Vesting	Issuer			24	05/21/2023	Compensation
Class A	02/11/2024	Restricted Stock Vesting	Issuer			309	02/11/2024	Compensation
Class A	02/15/2024	Restricted Stock Vesting	Issuer			1	02/15/2024	Compensation
Class A	02/16/2024	Restricted Stock Vesting	Issuer			48	02/16/2024	Compensation
Class A	02/13/2025	Restricted Stock Vesting	Issuer			856	02/13/2025	Compensation
Class A	02/16/2025	Restricted Stock Vesting	Issuer			484	02/16/2025	Compensation
Class A	02/17/2025	Restricted Stock Vesting	Issuer			208	02/17/2025	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Darren E. Zeidel 15 George's Quay Dublin 2 L2 D02 VR98	Class A	07/07/2026	600	216000.00

144: Remarks and Signature

Remarks
Date of Notice	07/17/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	11/05/2025
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	/s/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Darren E. Zeidel
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)