 TheStreet downgraded shares of Gorman-Rupp NYSE:GRC from a b- rating to a c rating in a research note released on Wednesday morning, TheStreetRatingsTable reports. Separately, Sidoti upgraded Gorman-Rupp from a neutral rating to a buy rating and set a 41.00 price target on the stock in a report on Friday, March 6th. Shares of NYSE:GRC ... 