ONON: Proposed sale of 119,978 Class A shares

ONON reported a proposed sale of 119,978 Class A Ordinary Shares on a Form 144, with Goldman Sachs & Co. LLC listed as the broker.

Rhea-AI Filing Summary

ONON reported a proposed sale of 119,978 Class A Ordinary Shares on a Form 144, with Goldman Sachs & Co. LLC listed as the broker. The filing lists multiple recent dispositions by Marc Maurer, including sales on 03/06/2026 (14,062 shares) and 04/08/2026 (27,841 shares).

Key Figures

Proposed shares to be sold: 119,978 shares Broker-dealer listed: Goldman Sachs & Co. LLC Example sale - 03/06/2026: 14,062 shares +2 more

5 metrics

Proposed shares to be sold 119,978 shares listed under 'Securities To Be Sold' on the Form 144 excerpt

Broker-dealer listed Goldman Sachs & Co. LLC 200 West Street, New York NY entry on the filing cover data

Example sale - 03/06/2026 14,062 shares sale by Marc Maurer dated 03/06/2026 shown in the selling activity list

Example sale - 04/08/2026 27,841 shares sale by Marc Maurer dated 04/08/2026 shown in the selling activity list

Noted single large disposition 399,620 shares a sale entry dated 05/15/2026 appears with 399,620 shares in the list

Key Terms

Form 144, Class A Ordinary Shares, Broker-dealer

3 terms

Form 144 regulatory

"144: Securities To Be Sold — notice of proposed sale by affiliates"

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.

Class A Ordinary Shares financial

"144: Securities Information — Class A Ordinary Shares appears repeatedly"

Class A ordinary shares are a type of ownership stake in a company that typically grants voting rights to shareholders, allowing them to have a say in important company decisions. They often come with priority in receiving dividends or profits, making them attractive to investors seeking influence and potential income. These shares help distinguish different levels of ownership and rights within a company's stock structure.

Broker-dealer regulatory

"Goldman Sachs & Co. LLC 200 West Street New York NY appears as broker"

A broker-dealer is a licensed firm or individual that both executes trades on behalf of clients (acting as a broker) and buys or sells securities for its own account (acting as a dealer). Investors care because broker-dealers provide the plumbing of markets — they place orders, hold or move cash and securities, offer research or advice, and their stability and fees directly affect trade execution, costs, and the safety of client funds; think of them as a combined travel agent and taxi for your investments.

FAQ

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

What does ONON's Form 144 disclose about shares to be sold?

The Form 144 discloses a proposed sale of 119,978 Class A Ordinary Shares with Goldman Sachs & Co. LLC named as the broker. The filing identifies the security class and the broker for the proposed disposition.

Who is the selling person named in the ONON Form 144?

The filing lists Marc Maurer as the individual associated with recent dispositions of Class A Ordinary Shares. Multiple sale dates and share amounts attributed to Marc Maurer appear in the Form 144 excerpt.

What recent transactions by Marc Maurer are shown in the filing?

The excerpt lists multiple recent sales by Marc Maurer, including 03/06/2026: 14,062 shares and 04/08/2026: 27,841 shares, among other dated dispositions reported in the Form 144 sections.

Which broker-dealer is handling the proposed sale in the ONON filing?

The Form 144 names Goldman Sachs & Co. LLC at 200 West Street, New York, NY as the broker-dealer associated with the securities to be sold. The broker is identified on the filing cover data.

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

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Accepted by SEC EDGAR 05/29/2026 - 04:33 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	0001859787
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	On Holding AG
SEC File Number	001-40795
Address of Issuer	Forrlibuckstrasse 190 Zurich SWITZERLAND 8005
Phone	41-44-225-1555
Name of Person for Whose Account the Securities are To Be Sold	Marc Maurer
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 Ordinary Shares	Goldman Sachs & Co. LLC 200 West Street New York NY 10282	119978	4897501.96	299205569	05/29/2026	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 Ordinary Shares	12/21/2017	Acquired from issuer in private transaction	Issuer			119978	12/21/2017	None

* 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
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	03/06/2026	14062	592273
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	04/08/2026	27841	962018
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	04/08/2026	24919	861759
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	04/08/2026	55836	1930379
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	04/08/2026	56662	1959066
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	03/02/2026	6250	289658
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	03/02/2026	6250	289534
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	03/05/2026	100000	4366966
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	03/09/2026	6250	250045
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	03/16/2026	6250	243207
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	03/23/2026	6250	248700
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	03/30/2026	6250	201948
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	04/06/2026	6250	209911
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	05/15/2026	399620	14889841.2

144: Remarks and Signature

Remarks	In accordance with the procedures described in the Securities and Exchange Commission's interpretive letter to Goldman, Sachs & Co., dated December 20, 1999 and the Commission's interpretive letter to Bank of America N.A., Merrill Lynch, Pierce, Fenner & Smith Inc., dated December 1, 2011, the shares noticed in this Form 144 are subject to a contract (the "Contract") in respect of a contingent forward sale transaction between the Filer and Goldman Sachs Bank AG ("GS Bank"), an affiliate of Goldman Sachs & Co. LLC, covering up to a maximum of 119,978 shares in the aggregate which have been pledged to GS Bank. The actual number of shares sold under the Contract will be based on the formula agreed to by the parties over an observation period of up to 12 months. Any initial hedging activity in connection with the contingent forward sale transaction will be conducted by the broker named in this Form 144.
Date of Notice	05/29/2026
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	Goldman Sachs & Co. LLC on behalf of Marc Maurer
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)