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MPLX - MPLX LP

This page shows which of the focused investors we track hold MPLX and how their positions changed, so you can see how much conviction the group has in the stock.

In Q1 2026 it was held by 2 managers with an aggregate reported value of $214.35M, which is 0.02% of the combined portfolio.

As of Q1 2026, 2 tracked institutional managers held MPLX (MPLX LP) with an aggregate reported value of $214.35M0.02% of the combined AlphaBaseline portfolio.

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Source
Curated SEC 13F filings
Period
Q1 2026
Ticker
MPLX

13F data is delayed and excludes shorts/non-13F assets.

Holders

1Glenn Greenberg - Brave Warrior Advisors4.60%Reduce -27.3%3,253,524$185.68M
2David Tepper - Appaloosa Management0.48%Reduce -19.9%502,460$28.68M
Loading holder history for MPLX