Institutional investors hold a majority ownership of MPC through the 84.78% of the outstanding shares that they control. This interest is also higher than at almost any other company in the Oil Refining/Marketing industry. Last, during the quarter ended September 2015, these large investors purchased a net $4.2 million shares.
Mutual fund holders
Largest Quarterly Institutional Transactions
Latest Institutional Activity
D. E. SHAW & CO. LP Bought 4.5 Million shares of Marathon Petroleum
BLACKROCK ADVISORS LLC Bought 3.7 Million shares of Marathon Petroleum
BLACKROCK INVESTMENT MANAGEMENT ... Bought 2.3 Million shares of Marathon Petroleum