13D Tracker has the (maybe, probably) scoop:
Reports circulating that Kirk Kerkorian has sold his remaining 4.95% interest in General Motors (NYSE: GM). A large block of shares traded recently which is believed to be from Kerkorian. However, owning less than 5%, he doesn't have to file any public information on his trading activity in the stock.
In an earlier 13D filing, Kerkorian disclosed they agreed to sell 14,000,000 shares which brought his stake to 28 million shares. It just so happens that a 28 million share block trade crossed the tape at 2:41PM at $29.25 per share.