Benzinga's Top #PreMarket Losers By: Benzinga via Benzinga September 14, 2015 at 08:23 AM EDT Raptor Pharmaceutical Corp. (NASDAQ: RPTP) shares dipped 32.83 percent to $8.08 in pre-market trading following news that Phase 2b ... Read More >> Related Stocks: Barrick Gold Corp Netflix Vodafone Grp Plc ADR Yahoo