ONON files to sell 200,000 Class A shares

ONON files a Form 144 disclosing 200,000 Class A Ordinary Shares to be sold via Goldman Sachs & Co. LLC on the NYSE.

Rhea-AI Filing Summary

ONON files a Form 144 disclosing 200,000 Class A Ordinary Shares to be sold via Goldman Sachs & Co. LLC on the NYSE. The shares were acquired 12/21/2017 from the issuer in a private transaction. The filing also lists multiple small open-market sales by Marc Maurer between 12/08/2025 and 03/02/2026, typically reported as 6,250 shares per trade.

Insights

Insider Transactions Analyst

Routine resale disclosure; no material corporate change.

The Form 144 lists 200,000 Class A Ordinary Shares intended for sale through Goldman Sachs & Co. LLC and notes an original acquisition date of 12/21/2017. This is a procedural notice that enables covered dispositions under securities law.

Multiple small trades by Marc Maurer from 12/08/2025 to 03/02/2026 are reported, commonly 6,250 shares each. Cash‑flow treatment and purchaser identity are not specified in the provided excerpt; subsequent filings would report settlement details if required.

FAQ

What does ONON's Form 144 disclose?

It discloses an intent to sell 200,000 Class A Ordinary Shares through Goldman Sachs & Co. LLC on the NYSE. The shares were acquired from the issuer on 12/21/2017, per the filing.

Who is the broker named in the ONON Form 144?

Goldman Sachs & Co. LLC is listed as the broker handling the proposed sale of 200,000 Class A Ordinary Shares on the filing, and the market is identified as the NYSE.

What trading activity by Marc Maurer is shown in the filing?

Multiple open‑market sales by Marc Maurer are listed between 12/08/2025 and 03/02/2026, with many transactions reported as 6,250 shares per trade in the excerpt provided.

When were the shares to be sold originally acquired?

The 200,000 Class A Ordinary Shares were acquired on 12/21/2017 from the issuer in a private transaction, as stated in the filing.

Does the Form 144 state who will receive proceeds from the sale?

The excerpt does not specify the recipient of cash proceeds. The filing identifies the broker and number of shares but does not state cash‑flow recipients in the provided text.

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Accepted by SEC EDGAR 03/05/2026 - 04:25 PM 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	200000	8674000	296873353	03/05/2026	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			200000	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	12/08/2025	6250	291555
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	12/08/2025	6250	291561
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	12/15/2025	6250	299977
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	12/15/2025	6250	299977
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	12/22/2025	6250	300970
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	12/22/2025	6250	301022
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	12/29/2025	6250	296820
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	12/29/2025	6250	296822
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	01/05/2026	6250	306922
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	01/05/2026	6250	306878
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	01/12/2026	6250	305822
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	01/12/2026	6250	305779
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	01/20/2026	6250	281693
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	01/20/2026	3536	161023
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	01/21/2026	2714	125591
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	01/26/2026	6250	289043
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	01/26/2026	6250	289029
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	02/02/2026	6250	284496
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	02/02/2026	6250	284588
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	02/09/2026	6250	277156
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	02/10/2026	6250	285796
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	02/17/2026	6250	288347
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	02/17/2026	6250	288338
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	02/23/2026	6250	297040
Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005	Class A Ordinary Shares	02/23/2026	6250	297040
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

144: Remarks and Signature

Remarks
Date of Notice	03/05/2026
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)