LK - EBS OPNT among premarket losers June, 08 2020 09:22 AM Luckin Coffee Opiant Pharmaceuticals (NASDAQ:OPNT) -32% after Teva prevails in Narcan patent dispute.More news on: Opiant Pharmaceuticals, Inc., Ascena Retail Group, Inc., Ekso Bionics Holdings, Inc., Stocks on the move, , Read more ...