NEW YORK, Sept. 12, 2024 /PRNewswire/ -- Rosen Law Firm, a global investor rights law firm, announces the filing of a class action lawsuit on behalf of purchasers of securities of Agenus Inc. (NASDAQ: AGEN) between January 23, 2023 and July 17, 2024, both dates inclusive (the "Class Period"). A class action lawsuit has already been filed. If you wish to serve as lead plaintiff, you must move the Court no later than November 5, 2024.So What: If you purchased Agenus securities during the Class Period you may ...