Amendment to Schedule 13D Filing for Seanergy Maritime Holdings Corp.

This filing is an amendment to a Schedule 13D, originally filed on November 24, 2023, concerning the common shares of Seanergy Maritime Holdings Corp. The amendment, dated March 16, 2026, is the ninth such amendment. It details changes in beneficial ownership, with George Economou, through Sphinx Investment Corp. and Maryport Navigation Corp., now beneficially owning 1,848,534 common shares, representing approximately 8.8% of the outstanding shares. This percentage is based on the 20,902,365 shares outstanding as of June 30, 2025. The filing also discloses that as of March 16, 2026, the Reporting Persons no longer intend to influence the control, capital structure, or corporate governance of the company. This decision follows a legal dispute in the Republic of the Marshall Islands where the High Court dismissed Sphinx's complaint, a decision affirmed by the Supreme Court of the Marshall Islands on February 20, 2026. A transaction report indicates that on March 11, 2026, Sphinx Investment Corp. sold 10,562 common shares at $13.45 per share.