Investor Ron Burkle filed papers with the SEC on Friday disclosing that his companies have purchased an 8.3 percent stake in Barnes & Noble since November 24. Purchasing over 4 million shares, he believes “such shares were undervalued by the market at the time they were acquired.” The filing declares the purchase is “for investment purposes, however, the reporting persons intend to closely monitor the company’s performance and may modify their plans in the future.” Burkle’s investment company Yucaipa says on their web site that they “work with management to strategically reposition businesses and implement operational improvements, resulting in value […]