Benzinga's Top #PreMarket Gainers By: Benzinga via Benzinga December 24, 2015 at 08:19 AM EST GW Pharmaceuticals PLC- ADR (NASDAQ: GWPH) shares surged 5.37 percent to $70.70 in pre-market trading following the report of ... Read More >> Related Stocks: Astrazeneca Plc ADR Celgene Corp Gw Pharma ADR