Company description

Acquisition of Pre-Merger Oruka On August 29, 2024 (the “Merger Closing”), we completed our acquisition (the “Merger”) of Oruka Therapeutics, Inc. (“Pre-Merger Oruka”) pursuant to an Agreement and Plan of Merger and Reorganization, dated as of April 3, 2024 (the “Merger Agreement”). Following the transactions contemplated by the Merger Agreement, Pre-Merger Oruka merged with and into Atlas Merger Sub Corp., a wholly owned subsidiary of ARCA biopharma, Inc. (“ARCA”) and following that, Pre-Merger Oruka then merged with and into Atlas Merger Sub II, LLC (“Second Merger Sub”), with Second Merger Sub being the surviving entity. Second Merger Sub changed its corporate name to “Oruka Therapeutics Operating Company, LLC”. Pre-Merger Oruka was a pre-clinical stage biotechnology company that was incorporated on February 6, 2024 under the direction of Peter Harwin, a Founding Partner at Fairmount Funds Management LLC (“Fairmount”), for the purposes of holding rights to certain intellectual property being developed by Paragon Therapeutics, Inc. (“Paragon”). On August 29, 2024, we changed our name from “ARCA biopharma, Inc.” (“ARCA”) to “Oruka Therapeutics, Inc.” and our Nasdaq ticker symbol from “ABIO” to “ORKA”. Company Overview We are a clinical-stage biopharmaceutical company focused on developing novel monoclonal antibody therapeutics for psoriasis (“PsO”) and other inflammatory and immunology (“I&I”) indications.

Read the full filing description · filed 12 Mar 2026

At a glance

Sector

Healthcare

Industry

Pharmaceutical Preparations

CEO

Lawrence Klein