 LOS ANGELES, Oct. 6, 2021 PRNewswire -- Glancy Prongay Murray LLP GPM announces that investors with substantial losses have opportunity to lead the securities fraud class action lawsuit against Spectrum Pharmaceuticals, Inc. NASDAQ: SPPI Class Period: December 27, 2018 - August 5, 2021 Lead Plaintiff Deadline: November 1, 2021 If you wish to serve as lead plaintiff of the Spectrum lawsuit, you can submit your contact information at You can also contact Charles H. 