Lawsuit for Investors in Shares of Metaldyne Performance Group Inc (NYSE:MPG) Against Buyout Filed

San Diego, CA -- (SBWIRE) -- 03/29/2017 -- The Shareholders Foundation announces that an investor who currently holds NYSE:MPG shares of Metaldyne Performance Group Inc filed a lawsuit in effort to halt the proposed takeover of Metaldyne Performance Group Inc by American Axle & Manufacturing Holdings, Inc.