 HENDERSON, Nev.--BUSINESS WIRE--Spectrum Pharmaceuticals NasdaqGS: SPPI, a biopharmaceutical company focused on novel and targeted oncology therapies, today announced that management will participate in two upcoming investor conferences: A fireside chat presentation at the Jefferies Healthcare Conference in New York from 1 to 1:25 p.m. ET on Thursday, June 9, 2022; and, A fireside chat presentation at the JMP Securities Life Sciences Conference in New York from 9 to 9:25 a.m. ET on Thursday 