Benzinga's Top #PreMarket Gainers By: Benzinga via Benzinga December 08, 2015 at 08:07 AM EST Onconova Therapeutics Inc (NASDAQ: ONTX) shares rose 60.31 percent to $2.10 in pre-market trading. Onconova Therapeutics presented ... Read More >> Related Stocks: Casey's General Stor Fireeye Inc Galapagos NV ADR