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# Who owns MPLX LP (MPLX)? Elite investor 13F holders

4 tracked elite investors reported holding MPLX LP as of 2026-06-30, including Brave Warrior Advisors, Appaloosa Management, Rockbridge Asset Management, Ancora Advisors / Ancora Holdings. Who bought, trimmed or exited each quarter, with links to the original SEC 13F filings.

4 tracked investors currently reported holding · Latest report period: 2026-06-30 · Energy · Energy

MPLX LP owns and operates midstream energy infrastructure and logistics assets primarily in the United States. It operates in two segments, Crude Oil and Products Logistics; and Natural Gas and NGL Services. The company is involved in the gathering, processing, and transportation of natural gas; gathering, transportation, fractionation, storage, and marketing of natural gas liquids; gathering,…

## Reported holders and securities, including exits (up to 20)

| Investor | Security | Instrument | Report period | Filed | Value | Quantity | Units | Change | Source |
|  --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [Brave Warrior Advisors](https://ownershiptrace.com/13f/investors/36) | MPLX LP | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 179159480.00 USD | 3180534.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/1553733/0001172661-26-003728-index.html) |
| [Appaloosa Management](https://ownershiptrace.com/13f/investors/27) | MPLX LP | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 28303572.00 USD | 502460.000000 | Shares | hold | [Original filing](https://www.sec.gov/Archives/edgar/data/1656456/0001656456-26-000003-index.html) |
| [Rockbridge Asset Management](https://ownershiptrace.com/13f/investors/94670) | MPLX LP | SHARE | 2026-06-30 | 2026-08-10 00:00:00 | 303112.00 USD | 5381.000000 | Shares | hold | [Original filing](https://www.sec.gov/Archives/edgar/data/2056320/0002056320-26-000008-index.html) |
| [Ancora Advisors / Ancora Holdings](https://ownershiptrace.com/13f/investors/101) | MPLX LP | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 160540.00 USD | 2850.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/1446114/0001446114-26-000012-index.html) |

Public disclosures can be delayed, incomplete, or amended. Report period describes a position date; transaction date describes a reported transaction; filed describes submission. A recent filing or page update does not establish a current holding. A dash means unavailable or not comparable, not zero.

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