Benzinga's Top #PreMarket Gainers By: Benzinga via Benzinga April 01, 2015 at 08:09 AM EDT Voltari Corporation (NASDAQ: VLTC) shares surged 86.14% to $1.88 in pre-market trading as Carl Icahn disclosed a 52.3% stake in the ... Read More >> Related Stocks: Esperion Theraptc Sarepta Therapeutics