Company: OWLS
Filing Date: 2025-09-19
Form Type: 8-A12B
Source: 0001193125-25-209065
Chunk: 1

Company: OBOOK HOLDINGS INC.
Filing Date: 2025-09-19
Form: 8-A12B
Chunk 1
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 required to be
filed because the securities being registered on this form (1) are being registered on an exchange on which no other securities of the Registrant are registered, and (2) are not being registered pursuant to Section 12(g) of the
Exchange Act.

SIGNATURE Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized. Date: September 19, 2025

| OBOOK Holdings Inc. |     |                                      |
| By:                 |     | /s/ Chun-Kai Wang                    |
| Name:               |     | Chun-Kai Wang                        |
| Title:              |     | Chairman and Chief Executive Officer |