Elon Musk, CEO of Tesla Motors, reacts to a reporter's question following the electric automaker’s initial public offering on Nasdaq, Tuesday, June, 29, 2010 in New York. (AP Photo/Mark Lennihan)

In a new SEC filing published after market close today, Tesla confirmed that CEO Elon Musk exercised stock options to purchase 532,000 shares of Tesla’s common stock, which is worth a little more than $100 million based on today’s closing price of $191. expand full story