Lion Capital, which holds warrants to buy 12 percent of American Apparel’s stock, has told the company it is exercising its right to fill one of the two vacant board seats it controls, nominating food executive Robert Mintz, the Wall Street Journal reports. Mintz, most recently chief executive of rib and barbecue supplier Rupari Food Services, attended middle school and high school in Montreal with ousted American Apparel founder Dov Charney.