The following data has been collected about Keller Company's stockholders' equity accounts: Common stock $10 par value 26,000 shares authorized and 13,000 shares issued, and 1,600 shares outstanding $ 130,000 Paid-in capital in excess of par value, common stock 56,000 Retained earnings 31,000 Treasury stock 19,360 Assuming the treasury shares were all purchased at the same price, the number of shares of treasury stock is: