Benzinga's Top #PreMarket Losers By: Benzinga via Benzinga April 07, 2014 at 08:37 AM EDT MannKind (NASDAQ: MNKD) fell 10.92% to $6.12 in pre-market trading after the company announced that the FDA extended PDUFA date for ... Read More >> Related Stocks: Canadian Solar Inc GT Advanced Tech Himax Technologies ADR