An investor may seek control of Horn & Hardart.

Theodore H. Kruttschnitt of Burlingame, Calif., said in a filing with the Securities and Exchange Commission that he owns 12.7% of Horn & Hardart’s shares and may seek control of the Las Vegas-based food service and mail order company “under certain circumstances.” Kruttschnitt told the SEC he bought an additional 223,000 shares at prices ranging between $12.50 and $13.50 between May 7 and May 14. He now owns 1.824 million shares.