Benzinga's Top #PreMarket Losers

Republic Airways Holdings Inc. RJET shares fell 25.74 percent to $2.25 in pre-market trading after declining 1.62 percent on Tuesday. Navistar International Corp NAV shares declined 13.54 percent to $15.01 in pre-market trading after the company reported a wider loss for its fiscal third quarter. Ambarella Inc AMBA fell 11.23 percent to $79.55 in pre-market trading. Ambarella reported stronger-than-expected results for the second quarter, but the company issued a weak Q3 forecast for wearable-camera revenue. HeartWare International Inc HTWR shares dipped 11.10 percent to $72.73 in pre-market trading after the company agreed to acquire Valtech Cardio, Ltd. GoPro Inc GPRO shares tumbled 5.93 percent to $41.10 in pre-market trading following disappointing sales forecast from Ambarella.