Benzinga's Top #PreMarket Losers

FireEye Inc FEYE shares tumbled 2.90 percent to $32.10 in pre-market trading. FireEye and F5 Networks, Inc. FFIV reported a global partnership to deliver integrated security solutions. Piper Jaffray downgraded FireEye from Overweight to Neutral and lowered the price target from $60.00 to $37.00. Applied Materials, Inc. AMAT shares declined 2.28 percent to $14.60 in pre-market trading. RBC Capital downgraded Applied Materials from Sector Perform to Underperform and lowered the price target from $16.00 to $12.00. Pacific Biosciences of California PACB shares fell 1.96 percent to $6.01 in pre-market trading after surging 12.48 percent on Friday. Lam Research Corporation LRCX shares dipped 1.05 percent to $64.99 in pre-market trading. RBC Capital downgraded Lam Research from Sector Perform to Underperform and lowered the price target from $76.00 to $52.00. Randgold Resources Ltd. (ADR) GOLD fell 1.04 percent to $62.69 in pre-market trading after rising 7.87 percent on Friday.