Former Ranbaxy shareholders hid key info on US probe: Daiichi Sankyo

India's biggest drugmaker Ranbaxy Laboratories Ltd slumped as much as 6.97 percent on Thursday after Japanese drug maker and a majority shareholder Daiichi Sankyo Co said that it believes former shareholders of the Indian company hid information regarding U.S. regulatory probes. "Daiichi Sankyo believes that certain former shareholders of Ranbaxy concealed and misrepresented critical information concerning the U.S. DOJ and FDA investigations," the Japanese company said in a statement on its website late on Wednesday, referring to the U.S. Department of Justice and the Food and Drug Administration. However, it did not name the shareholders or give further details on their alleged actions.