Horizon Space Acquisition II Corp.

Horizon Space Acquisition II Corp. (Nasdaq: HSPTU) is a blank-check company focused on the aerospace and space technology sector, operating as the second vehicle from the Horizon Space sponsor group. The SPAC filed an F-4 registration statement on December 18, 2025 (accession 0001213900-25-122905), signaling an active de-SPAC business combination in progress that requires SEC registration of the securities to be issued in the transaction. The F-4 filing places the vehicle in the merger-registration phase of its lifecycle, a key milestone between deal announcement and shareholder vote. Investors and analysts tracking the space-sector SPAC pipeline can access the full deal timeline, filing history, and comparable transaction data for HSPTU by signing up for SpacDesk at spacdesk.com.