Benzinga's Top Downgrades By: Benzinga via Benzinga August 19, 2016 at 08:59 AM EDT D.A. Davidson downgraded Mentor Graphics Corp (NASDAQ: MENT) from Buy to Neutral. Mentor Graphics shares rose 3.79 ... Read More >> Related Stocks: Canadian Solar Inc Emerson Electric Juniper Pharm Inc Portola Pharma Sharkninja Inc Thor Industries United States Steel Corp