LOS ANGELES, Oct. 21, 2025 (GLOBE NEWSWIRE) -- The Portnoy Law Firm advises Quantum Corporation, (“Quantum” or the "Company") (NASDAQ: QMCO) investors off a class action on behalf of investors that bought securities between November 15, 2024 and August 18, 2025, inclusive (the “Class Period”). Quantum investors have until November 3, 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, to discuss their le ...