Benzinga's Top #PreMarket Losers

ImmunoGen, Inc. IMGN shares dropped 45.30% to $5.94 after the company reported that Roche has provided an update on the MARIANNE trial. Finish Line Inc. FINL shares fell 12.80% to $25.20 on downbeat quarterly results. BlackBerry Limited BBRY slipped 8.24% to $9.24 in pre-market trading after the company reported Q3 results. Bellicum Pharmaceuticals, Inc BLCM declined 3.69% to $23 in pre-market trading.