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, Q2 2021
Institutional positions in MPLX LP as of Jun 30, 2021. 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
- 301
- −2 vs. Q1 2021
- Shares held
- 277.0M
- −8.25M (−2.9%) vs. Q1 2021
- Total value
- $8.20B
- +$885.1M (+12.1%) vs. Q1 2021
- New holders
- 31
- 100 more added
- Sold out
- 33
- 95 more reduced
3 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2021: 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, Q2 2021
Shares, value and share of portfolio for each institution holding MPLX LP; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Blackstone Group Inc. | 67,736,346 | $2.01B | 4.71% | +257,000+0.4% | Added |
| California Public Employees Retirement System | 0 | $0 | 0.00% | −824,658−100.0% | Sold out |
| MetLife Investment Management | 0 | $0 | 0.00% | −806,647−100.0% | Sold out |
| Barings LLC | 0 | $0 | 0.00% | −357,794−100.0% | Sold out |
| Glenmede Trust Co NA | 0 | $0 | 0.00% | −155,779−100.0% | Sold out |
| GP Brinson Investments LLC | 0 | $0 | 0.00% | −125,733−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −124,618−100.0% | Sold out |
| QS Investors, LLC | 0 | $0 | 0.00% | −46,400−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −41,400−100.0% | Sold out |
| Voya Financial Advisors, Inc. | 0 | $0 | 0.00% | −16,248−100.0% | Sold out |
| Inscription Capital, LLC | 0 | $0 | 0.00% | −15,057−100.0% | Sold out |
| Comerica Securities,inc. | 0 | $0 | 0.00% | −14,279−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −13,623−100.0% | Sold out |
| CPWM, LLC | 0 | $0 | 0.00% | −13,632−100.0% | Sold out |
| Ameritas Investment Partners, Inc. | 0 | $0 | 0.00% | −12,951−100.0% | Sold out |
| Claybrook Capital, LLC | 0 | $0 | 0.00% | −12,050−100.0% | Sold out |
| Telemus Capital, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Sowell Financial Services LLC | 0 | $0 | 0.00% | −8,240−100.0% | Sold out |
| FineMark National Bank & Trust | 0 | $0 | 0.00% | −8,591−100.0% | Sold out |
| Intrua Financial, LLC | 0 | $0 | 0.00% | −8,027−100.0% | Sold out |
| CenterStar Asset Management, LLC | 0 | $0 | 0.00% | – | Sold out |
| Parallax Volatility Advisers, L.P. | 0 | $0 | 0.00% | −3,911−100.0% | Sold out |
| Tfo-TDC, LLC | 0 | $0 | 0.00% | −1,228−100.0% | Sold out |
| Allred Capital Management, LLC | 0 | $0 | 0.00% | −1,135−100.0% | Sold out |
| NuWave Investment Management, LLC | 0 | $0 | 0.00% | −899−100.0% | Sold out |
| Ameritas Investment Company, LLC | 0 | $0 | 0.00% | −894−100.0% | Sold out |
| Valeo Financial Advisors, LLC | 0 | $0 | 0.00% | −600−100.0% | Sold out |
| Key Financial Inc | 0 | $0 | 0.00% | −300−100.0% | Sold out |
| Kistler-Tiffany Companies, LLC | 0 | $0 | 0.00% | −279−100.0% | Sold out |
| Arkadios Wealth Advisors | 0 | $0 | 0.00% | −231−100.0% | Sold out |
| Manchester Financial Inc | 0 | $0 | 0.00% | −150−100.0% | Sold out |
| Benjamin F. Edwards & Company, Inc. | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| American National Bank | 0 | $0 | 0.00% | −74−100.0% | Sold out |
| Stonebridge Capital Advisors LLC | 0 | $0 | 0.00% | −38−100.0% | Sold out |
| Amundi Asset Management US, Inc. | – | – | – | – | Not filed |
| Waddell & Reed Financial Inc | – | – | – | – | Not filed |
| Bokf, NA | – | – | – | – | Not filed |