144 0001859787 XXXXXXXX LIVE 0001858985 On Holding AG 001-40795 Forrlibuckstrasse 190 Zurich V8 8005 41-44-225-1555 Marc Maurer Officer Class A Ordinary Shares Goldman Sachs & Co. LLC 200 West Street New York NY 10282 100000 3825000 299205569 06/09/2026 NYSE Class A Ordinary Shares 12/21/2017 Acquired from issuer in private transaction Issuer N 100000 12/21/2017 None N 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 03/09/2026 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 Marc Maurer Forrlibuckstrasse 190 Zurich V8 8005 Class A Ordinary Shares 05/29/2026 119978 4897502 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 100,000 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. 06/09/2026 Goldman Sachs & Co. LLC on behalf of Marc Maurer