Marathon Petroleum Corporation (NYSE:MPC - Get Free Report) SVP Shawn Lyon sold 2,500 shares of the company's stock in a transaction that occurred on Thursday, August 13th. The stock was sold at an average price of $350.00, for a total transaction of $875,000.00. Following the sale, the senior vice president directly owned 12,619 shares in the company, valued at approximately $4,416,650. The trade was a 16.54% decrease in their ownership of the …