Benzinga's Top #PreMarket Gainers

Forest Laboratories (NYSE: FRX ) surged 34.46% to $95.99 in the pre-market session after Actavis (NYSE: ACT ) announced its plans to buy Forest Labs for $25 billion. Analysts at Morgan Stanley upgraded Forest Labs from Equal-Weight to Overweight. Actavis plc (NYSE: ACT ) soared 12.04% to $215.00