ATIF - RIG RKT among premarket gainers August, 24 2020 08:24 AM ATIF Holdings Limited Sonnet BioTherapeutics Holdings (NASDAQ:SONN) +67% on FDA nod for convalescent plasma.More news on: Sonnet BioTherapeutics Holdings, Inc., Liminal BioSciences Inc., ADMA Biologics, Inc., Stocks on the move, , Read more ...