New York, New York--(Newsfile Corp. - May 20, 2026) - WHY: Rosen Law Firm, a global investor rights law firm, announces a class action lawsuit on behalf of purchasers of American Depositary Receipts ("ADRs") of Immutep Ltd. (NASDAQ: IMMP) between March 24, 2025 and March 12, 2026, inclusive (the "Class Period").