LOS ANGELES, Sept. 11, 2025 (GLOBE NEWSWIRE) -- The Portnoy Law Firm advises Lantheus Holdings, Inc., investors ("Lantheus" or the "Company") (NASDAQ: LNTH) investors of a class action representing investors that bought securities between February 26, 2025, and August 5, 2025, inclusive (the “Class Period”). Lantheus investors have until November 10th, 2025 to file a lead plaintiff motion. Investors are encouraged to contact attorney Lesley F. Portnoy, by phone 844-767-8529 or email: lesley@portnoylaw.com, ...