Benzinga's Top #PreMarket Losers By: Benzinga via Benzinga October 05, 2015 at 08:22 AM EDT FireEye Inc (NASDAQ: FEYE) shares tumbled 2.90 percent to $32.10 in pre-market trading. FireEye and F5 Networks, Inc. (NASDAQ: FFIV) ... Read More >> Related Stocks: Applied Materials Barrick Gold Corp F5 Networks Fireeye Inc Lam Research Pacific Biosciences