Research Analysts’ upgrades for Wednesday, May 29th: Brown & Brown (NYSE:BRO) was upgraded by analysts at StockNews.com from a hold rating to a buy rating. Chimerix (NASDAQ:CMRX) was upgraded by analysts at StockNews.com from a sell rating to a hold rating. CTS (NYSE:CTS) was upgraded by analysts at StockNews.com from a hold rating to a […]