Maryann T. Mannen owns 0.02% of MPLX
165,459 shares as of the March 2, 2026 filing, worth $9.6M at the latest close.
MPLX · $59B market capGet an email when Maryann T. Mannen’s stake moves.
Free.
The stake
0.02%
worth $9.6M at the latest close
Stake rank
#1,738
by dollar value of the stake
Last sale
None
no sales since 2016
Last buy
None
no purchases since 2016
Maryann T. Mannen owns 0.02% of MPLX LP: 165,459 of 1,013,858,251 shares, worth about $9.6M at the 2026-10-16 close. The stake has moved from 0.00% in 2021 to 0.02% on 2026-07-30.
How the stake is held
as of the Mar 2, 2026 filing
SHARES
OF THE STAKE
COMMON STOCK · stated Mar 2, 2026 · Form 4 ↗
HELD DIRECTLY
165,459
100.0%
THE STAKE
165,459
0.02%