 LOS ANGELES--BUSINESS WIRE--- SPPI CLASSACTION--Glancy Prongay Murray LLP GPM reminds investors of the upcoming November 1, 2021 deadline to file a lead plaintiff motion in the class action filed on behalf of investors who purchased or otherwise acquired Spectrum Pharmaceuticals, Inc. Spectrum or the Company NASDAQ: SPPI securities between December 27, 2018 and August 5, 2021, inclusive the Class Period. If you suffered a loss on your Spectrum investments or would like to inquire about pote 