Grantham, Mayo, Van Otterloo & Co. LLC's ownership history for MPC

Grantham, Mayo, Van Otterloo & Co. LLC currently holds 24.5K shares with a market value of $6.0M. It started holding MPC on 2025-06-30. At its peak, it held 24.5K shares on 2026-03-31. Its highest holding value was $6.0M on 2026-03-31. At its lowest, it held 5.3K shares on 2025-09-30, with a value of $971.2K on 2025-12-31. In the recent 180 days, Grantham, Mayo, Van Otterloo & Co. LLC has increased its shares by 19.2K.