On the same date he announced his desire to join Sotheby 's board and called for the resignation of chairman and CEO William F. Ruprecht .
Loeb disclosed on October 2 , 2013 , that he was now Sotheby 's largest shareholder , with a 9.3 % stake .
On the same date Loeb announced Loeb 's desire to Sotheby Sotheby 's board and called for the resignation of chairman and CEO William F. Ruprecht .
Loeb disclosed on October 2 , 2013 , that he was now Sotheby 's largest shareholder , with a 9.3 % stake .