Tim Cook, the CEO of Apple, sold off the majority of his shares in the company on Monday and cleared $11.1 million after required withholding for tax purposes, according to a form filed with the SEC. Cook exercised options on 37,500 shares and sold 20,178 shares at an average price of just under $550, netting the $11.1 million payday (the balance of the stock was sold at $545.17 for withholding) across two days, Saturday and Monday.