Gainers

Rigel Pharmaceuticals, Inc. (NASDAQ:RIGL) shares rose 44.7% to $0.9902 in pre-market trading after the company reported the U.S. FDA approval of REZLIDHIA (olutasidenib) for the treatment of adult patients with relapsed or refractory acute myeloid leukemia with a susceptible IDH1 mutation. MEI Pharma, Inc. (NASDAQ:MEIP) shares rose 22.2% to $0.40 in pre-market trading. The company, last month, posted a narrower quarterly loss. Ra Medical Systems, Inc. (NYSE:RMED) rose 17.7% to $3.73 in pre-market trading after jumping 29% on Thursday. Ra Medical Systems, last month, posted a Q3 loss of $4.36 per share. Helbiz, Inc. (NASDAQ:HLBZ) rose 13.3% to $0.2450 in pre-market trading...