Plymouth, Minn. -- The Shareholders Foundation, Inc. has filed a lawsuit on behalf of certain purchasers of Tile Shop common stock over alleged violations of federal securities laws in connection with certain allegedly false and misleading statements made between August 22, 2012 and November 13, 2013. The plaintiff alleges that the defendants failed to disclose that one of its largest suppliers, Beijing Pingxiu, is an undisclosed related company secretly controlled by Fumitake Nishi, the brother-in-law of the company's CEO and a Tile Shop employee.