Calisa Acquisition Corp

Calisa Acquisition Corp, trading under the ticker ALISR, is a blank-check company that filed a Form S-4 registration statement with the Securities and Exchange Commission on June 18, 2026, bearing accession number 0001493152-26-029398. An S-4 filing marks the formal registration of securities to be issued in connection with a proposed business combination, confirming that Calisa has identified a merger target and is advancing toward a shareholder vote and closing. The filing represents a significant milestone in the company's de-SPAC timeline. Investors and analysts tracking the SPAC pipeline can access Calisa's full sponsor details, IPO vintage, sector focus, and filing history by signing up for complete data on SpacDesk.