Benzinga's Top Downgrades By: Benzinga via Benzinga July 06, 2015 at 09:45 AM EDT Analysts at Oppenheimer downgraded Raptor Pharmaceutical Corp. (NASDAQ: RPTP) from Perform to Underperform. Raptor Pharmaceutical's ... Read More >> Related Stocks: Aci Worldwide Inc Bt Group Plc Celanese Corp Centene Corp Circor International Intuitive Surgical Vmware Inc