Benzinga's Top #PreMarket Losers

Abengoa SA (ADR) ABGB fell 19.93 percent to $2.25 in pre-market trading after rising 6.44 percent on Wednesday. Zafgen Inc ZFGN shares tumbled 6.85 percent to $5.85 in pre-market trading after dipping 60.58 percent on Wednesday. SunTrust Robinson Humphrey downgraded Zafgen from Buy to Neutral and lowered the price target from $25.00 to $7.00. Central European Media Enterprises Ltd. CETV shares dipped 1.39 percent to $2.13 in pre-market trading after falling 2.26 percent on Wednesday. Geron Corporation GERN shares fell 0.59 percent to $5.02 in pre-market trading after dropping 1.37 percent on Wednesday. Cummins Inc. CMI shares declined 0.16 percent to $94.70 in pre-market trading after jumping 2.76 percent on Wednesday.