GP-Act III Acquisition Corp.

GP-Act III Acquisition Corp., trading under the ticker GPAT, is a blank-check company that filed a DEFA14A — definitive additional proxy solicitation materials — with the SEC on May 6, 2026, under accession number 0001213900-26-052797. The DEFA14A filing indicates the company was actively engaged in a shareholder solicitation process at the time, consistent with a pending business combination or extension vote. GP-Act III represents the third special purpose acquisition vehicle associated with its sponsor lineage, reflecting continued activity in the SPAC market from this team. For complete filing history, deal status, sponsor details, and real-time data on GPAT, sign up for full access at SpacDesk.