Stock Analysts’ upgrades for Friday, June 3rd: C3.ai (NYSE:AI) was upgraded by analysts at StockNews.com to a sell rating. Actinium Pharmaceuticals (NYSE:ATNM) was upgraded by analysts at StockNews.com from a sell rating to a hold rating. American Axle & Manufacturing (NYSE:AXL) was upgraded by analysts at StockNews.com from a hold rating to a buy rating. […]