SELLAS Life Sciences Group Announces Exercise of Existing Warrants Held by a Current Institutional Investor for $31 Million in Gross Proceeds

NEW YORK, Oct. 27, 2025 (GLOBE NEWSWIRE) -- SELLAS Life Sciences Group, Inc. (NASDAQ: SLS) (“SELLAS” or the “Company”), a late-stage clinical biopharmaceutical company focused on the development of novel therapies for a broad range of cancer indications, today announced the immediate exercise of warrants, previously issued in March and August 2024 (the “Existing Warrants”), to purchase up to 22,363,714 shares of its common stock for gross cash proceeds of approximately $31.0 million.