Table of Contents As filed with the U.S. Securities and Exchange Commission on September 24, 2025 Registration No. 333-290018 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 AMENDMENT NO. 2 TO FORM F-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 OBOOK Holdings Inc. (Exact Name of Registrant as Specified in Its Charter) (State or other jurisdiction of incorporation or organization) Cayman Islands 7372 N/A (Primary Standard Industrial Classification Code Number) (IRS Employ ...