Bob Mansfield, Apple's senior vice president of Mac and iPhone hardware engineering, has sold off a boatload of his Apple stock: almost 40,000 shares, at a price of more than $350 each. That's a more than $13 million return (before taxes). It also means that Mansfield has cashed in 99% of his Apple stock, leaving him with just 501 shares (not including restricted stock units or options to buy further stock). I guess that explains why he always looks so happy in those manufacturing videos.