MPLX LP
MPLX- Exchange
- NYSE
- Industry
- Pipe Lines (No Natural Gas)
- SEC CIK
- 0001552000
No open-market purchases or sales by MPLX LP insiders were filed in the last 90 days; 639 institutions reported holding it in 13F filings for Q2 2026, worth $11.1B in total; Appaloosa is the only superinvestor holding it.
13F holders, Q1 2024
Institutional positions in MPLX LP as of Mar 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 480
- +39 vs. Q4 2023
- Shares held
- 225.7M
- +4.04M (+1.8%) vs. Q4 2023
- Total value
- $9.32B
- +$1.18B (+14.5%) vs. Q4 2023
- New holders
- 72
- 156 more added
- Sold out
- 33
- 129 more reduced
3 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MPLX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 639 | $11.1B |
| Q1 2026 | 646 | $11.6B |
| Q4 2025 | 633 | $9.52B |
| Q3 2025 | 576 | $10.5B |
| Q2 2025 | 575 | $11.2B |
| Q1 2025 | 570 | $11.6B |
| Q4 2024 | 535 | $10.4B |
| Q3 2024 | 502 | $10.3B |
| Q2 2024 | 491 | $10.2B |
| Q1 2024 | 480 | $9.32B |
| Q4 2023 | 444 | $8.15B |
| Q3 2023 | 398 | $8.18B |
| Q2 2023 | 370 | $7.62B |
| Q1 2023 | 381 | $7.91B |
| Q4 2022 | 359 | $7.36B |
| Q3 2022 | 342 | $6.98B |
| Q2 2022 | 340 | $6.97B |
| Q1 2022 | 350 | $8.20B |
| Q4 2021 | 341 | $7.48B |
| Q3 2021 | 311 | $7.51B |
| Q2 2021 | 301 | $8.20B |
| Q1 2021 | 306 | $7.34B |
Institutions, Q1 2024
Shares, value and share of portfolio for each institution holding MPLX LP; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| South State Corp. | 0 | $0 | 0.00% | −1,400−100.0% | Sold out |
| Private Trust Co NA | 0 | $0 | 0.00% | −1,385−100.0% | Sold out |
| GPS Wealth Strategies Group, LLC | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| Colonial Trust Advisors | 0 | $0 | 0.00% | −453−100.0% | Sold out |
| O'Dell Group, LLC | 0 | $0 | 0.00% | −436−100.0% | Sold out |
| Assetmark, Inc | 0 | $0 | 0.00% | −248−100.0% | Sold out |
| Newbridge Financial Services Group, Inc. | 0 | $0 | 0.00% | −231−100.0% | Sold out |
| Whittier Trust Co | 0 | $0 | 0.00% | −160−100.0% | Sold out |
| Elequin Capital LP | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Rockbridge Investment Management, LCC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Hexagon Capital Partners LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| EdgeRock Capital LLC | 0 | $0 | 0.00% | −82−100.0% | Sold out |
| National Bank of Canada | 0 | $0 | 0.00% | −21−100.0% | Sold out |
| Sawtooth Solutions, LLC | – | – | – | – | Not filed |
| Cannell Peter B & Co Inc | – | – | – | – | Not filed |
| Coppell Advisory Solutions LLC | – | – | – | – | Not filed |