Benzinga's Top #PreMarket Losers By: Benzinga via Benzinga January 08, 2015 at 08:22 AM EST Infinity Pharmaceuticals, Inc. (NASDAQ: INFI) shares fell 12.52% to $14.26 in pre-market trading. Infinity Pharmaceuticals' Phase 2 ... Read More >> Related Stocks: Alexion Pharmaceuticals Amtrust Financial Gw Pharma ADR Infinity Pharmaceuticals Insulet Corp