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, Q3 2023
Institutional positions in MPLX LP as of Sep 30, 2023. 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
- 398
- +32 vs. Q2 2023
- Shares held
- 229.9M
- +5.33M (+2.4%) vs. Q2 2023
- Total value
- $8.18B
- +$555.7M (+7.3%) vs. Q2 2023
- New holders
- 54
- 133 more added
- Sold out
- 22
- 92 more reduced
4 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2023
Shares, value and share of portfolio for each institution holding MPLX LP; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Simplex Trading, LLC | 0 | $0 | 0.00% | −35,552−100.0% | Sold out |
| Bramshill Investments, LLC | 0 | $0 | 0.00% | −30,690−100.0% | Sold out |
| Thrivent Financial for Lutherans | 0 | $0 | 0.00% | −26,988−100.0% | Sold out |
| CFM Wealth Partners LLC | 0 | $0 | 0.00% | −21,391−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −17,712−100.0% | Sold out |
| GTS Securities LLC | 0 | $0 | 0.00% | −15,197−100.0% | Sold out |
| Ameritas Investment Partners, Inc. | 0 | $0 | 0.00% | −14,034−100.0% | Sold out |
| Atwater Malick LLC | 0 | $0 | 0.00% | −8,500−100.0% | Sold out |
| United Capital Financial Advisers, LLC | 0 | $0 | 0.00% | −7,767−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −7,482−100.0% | Sold out |
| Fairfield, Bush & Co. | 0 | $0 | 0.00% | −3,800−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −2,033−100.0% | Sold out |
| Federation des caisses Desjardins du Quebec | 0 | $0 | 0.00% | −1,610−100.0% | Sold out |
| CoreCommodity Management, LLC | 0 | $0 | 0.00% | −1,580−100.0% | Sold out |
| Worth Asset Management, LLC | 0 | $0 | 0.00% | −800−100.0% | Sold out |
| ICA Group Wealth Management, LLC | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| O'Dell Group, LLC | 0 | $0 | 0.00% | −436−100.0% | Sold out |
| Horan Securities, Inc. | 0 | $0 | 0.00% | −182−100.0% | Sold out |
| Resources Management Corp | 0 | $0 | 0.00% | −152−100.0% | Sold out |
| Ridgewood Investments LLC | 0 | $0 | 0.00% | −12−100.0% | Sold out |
| Cowen Prime Advisors LLC | – | – | – | – | Not filed |
| First Capital Advisors Group, LLC. | – | – | – | – | Not filed |
| Kistler-Tiffany Companies, LLC | – | – | – | – | Not filed |
| Endurance Wealth Management, Inc. | – | – | – | – | Not filed |