Southport Acquisition Corporation, trading under the ticker PORT, is a blank-check company currently in an advanced stage of its de-SPAC process. The company filed an S-4/A amendment with the SEC on July 15, 2025, under accession number 0001104659-25-067875, signaling that it is actively working through the regulatory review process for a proposed business combination. The S-4/A amendment reflects ongoing correspondence with the SEC as PORT moves toward shareholder approval of its target transaction. The SPAC targets opportunities in the industrials and maritime-adjacent sectors, consistent with its branding. Investors and analysts tracking this transaction can sign up at SpacDesk for full filing history, deal timelines, and target company data on PORT and hundreds of other active SPACs.