Benzinga's Top Downgrades

B. Riley downgraded Mattson Technology, Inc. MTSN from Buy to Neutral. Mattson shares closed at $3.60 on Wednesday. Analysts at Bank of America downgraded Unum Group UNM from Buy to Neutral. Unum shares closed at $36.76 on Wednesday. Stephens & Co. downgraded Weatherford International Plc WFT from Overweight to Equal-weight. Weatherford International shares closed at $10.77 on Wednesday. Analysts at SunTrust Robinson Humphrey downgraded Zafgen Inc ZFGN from Buy to Neutral. The price target for Zafgen has been lowered from $25 to $7. Zafgen shares closed at $6.28 on Wednesday. Analysts at Goldman Sachs downgraded Education Realty Trust, Inc. EDR from Neutral to Sell. Education Realty Trust shares closed at $36.44 on Wednesday. Wedbush downgraded PerkinElmer, Inc. PKI from Outperform to Neutral. The price target for PerkinElmer is set to $56. PerkinElmer shares closed at $52.56 on Wednesday. Credit Suisse downgraded Verint Systems Inc. VRNT from Outperform to Neutral. The price target for Verint Systems has been lowered from $60 to $45. Verint Systems shares closed at $46.46 on Wednesday. Analysts at Goldman Sachs downgraded American Campus Communities, Inc. ACC from Neutral to Sell. American Campus shares closed at $40.00 on Wednesday. Analysts at Bank of America downgraded Travelers Companies Inc TRV from Buy to Neutral. Travelers shares closed at $114.76 on Wednesday.