Benzinga's Top #PreMarket Gainers

Furiex Pharmaceuticals FURX shares jumped 28.55% to $103.03 in pre-market trading after Forest Labs FRX announced its plans to buy Furiex Pharma for up to $1.46 billion. AstraZeneca PLC AZN shares gained 16.82% to $80.20 in pre-market trading following the rejection of Pfizer's PFE $76.62 per share bid. GW Pharmaceuticals plc GWPH soared 11.88% to $69.50 in the pre-market trading following announcement of the FDA fast track designation for Sativex. Tarena International TEDU surged 4.71% to $9.33 in the pre-market session after falling 0.45% on Friday.