SELLAS Life Sciences Group Inc. (NASDAQ:SLS) is one of the popular penny stocks on Robinhood to buy. On March 17, SELLAS Life Sciences Group, Inc. (NASDAQ:SLS) announced that it will present preclinical data on SLS009 at the American Association for Cancer Research annual meeting on April 21, 2026. SELLAS Life Sciences (SLS) to Present SLS009 Data at AACR 2026 SLS009, alternatively known as tambiciclib, is a selective CDK9 inhibitor. Put simply, this is a treatment designed to stop a specific “worker” pr ...