Catalyst Acquisition Corp.

We are a newly incorporated blank check company incorporated on October 22, 2025 as a Cayman Islands exempted company with limited liability for the purpose of effecting a merger, amalgamation, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses, which we refer to throughout this prospectus as our initial business combination. We have not identified any potential business combination target, and we have not, nor has anyone on our behalf, initiated any substantive discussions, directly or indirectly, with any potential business combination target.

Current securities

1. Other EventsSep 15, 2026
2. 4 filingSep 14, 2026
3. 10-Q filingSep 10, 2026
4. Other EventsAug 4, 2026
5. Entry into a Material Definitive Agreement · Unregistered Sales of Equity Securities · Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year · Other EventsJul 29, 2026