 SAN DIEGO, Sept. 7, 2021 PRNewswire -- Robbins Geller Rudman Dowd LLP announces that purchasers and acquirers of Spectrum Pharmaceuticals, Inc. NASDAQ: SPPI securities between December 27, 2018 and August 5, 2021, inclusive the Class Period have until November 1, 2021 to seek appointment as lead plaintiff in the Spectrum Pharmaceuticals class action lawsuit. 