Rio Tinto Group (LON:RIO – Get Rating) was downgraded by equities researchers at Berenberg Bank to a “sell” rating in a research report issued on Thursday, MarketBeat reports. They currently have a GBX 4,200 ($50.86) price target on the stock, down from their prior price target of GBX 6,500 ($78.71). Berenberg Bank’s target price would […]