BlackRock, Inc.'s ownership history for MPC

BlackRock, Inc. currently holds 24.4M shares with a market value of $6.0B. It started holding MPC on 2024-09-30. At its peak, it held 25.4M shares on 2024-09-30. Its highest holding value was $6.0B on 2026-03-31. At its lowest, it held 22.4M shares on 2025-09-30, with a value of $3.5B on 2024-12-31. In the recent 180 days, BlackRock, Inc. has increased its shares by 2.0M. In the recent year, BlackRock, Inc. has increased its shares by 73.9K.