GW Pharmaceuticals Surrenders Big Pre-Market Gains By: Benzinga via Benzinga June 27, 2016 at 11:34 AM EDT GW Pharmaceuticals PLC- ADR (NASDAQ: GWPH) shares are trading higher by $6.69 (8 percent) at $90 in Monday's session. The issue ... Read More >> Related Stocks: Gw Pharma ADR