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 2026
Institutional positions in MPLX LP as of Mar 31, 2026. 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
- 646
- +19 vs. Q4 2025
- Shares held
- 202.7M
- +27.3M (+15.5%) vs. Q4 2025
- Total value
- $11.6B
- +$2.20B (+23.5%) vs. Q4 2025
- New holders
- 76
- 216 more added
- Sold out
- 57
- 173 more reduced
6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: 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 2026
Shares, value and share of portfolio for each institution holding MPLX LP; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Fort Washington Investment Advisors Inc | 55,851 | $3.19M | 0.02% | −20,706−27.0% | Reduced |
| Creative Planning | 57,623 | $3.29M | 0.00% | +10,532+22.4% | Added |
| Samalin Investment Counsel, LLC | 58,237 | $3.32M | 1.18% | +2,540+4.6% | Added |
| Mutual of America Capital Management LLC | 58,486 | $3.34M | 0.04% | −212−0.4% | Reduced |
| Davenport & Co LLC | 59,583 | $3.40M | 0.02% | 00.0% | Unchanged |
| US Bancorp | 59,742 | $3.41M | 0.00% | −5,300−8.1% | Reduced |
| Empire Financial Management Company, LLC | 60,321 | $3.44M | 0.78% | −3,000−4.7% | Reduced |
| MAI Capital Management | 61,650 | $3.52M | 0.02% | +3,784+6.5% | Added |
| Forum Financial Management, LP | 62,284 | $3.55M | 0.05% | +514+0.8% | Added |
| Botty Investors LLC | 62,977 | $3.59M | 0.86% | 00.0% | Unchanged |
| Asset One Wealth Management LLC | 67,104 | $3.72M | 0.41% | +4,701+7.5% | Added |
| Dividend Assets Capital, LLC | 65,550 | $3.74M | 0.75% | −5,768−8.1% | Reduced |
| Moneta Group Investment Advisors LLC | 66,583 | $3.80M | 0.03% | −50.0% | Reduced |
| Militia Capital Management LLC | 67,000 | $3.82M | 0.86% | +67,000 | New |
| Childress Capital Advisors, LLC | 67,641 | $3.86M | 0.70% | 00.0% | Unchanged |
| Jackson Hole Capital Partners, LLC | 69,650 | $3.97M | 0.66% | +4,243+6.5% | Added |
| Aster Capital Management (DIFC) Ltd | 74,490 | $3.99M | 1.31% | +74,490 | New |
| Basso Capital Management, L.P. | 71,200 | $4.06M | 2.49% | 00.0% | Unchanged |
| TCG Advisory Services, LLC | 72,906 | $4.16M | 0.10% | +52,977+265.8% | Added |
| HRT Financial LP | 72,935 | $4.16M | 0.01% | −266,070−78.5% | Reduced |
| Advisory Services Network, LLC | 73,567 | $4.20M | 0.06% | +19,282+35.5% | Added |
| Cerity Partners LLC | 75,019 | $4.28M | 0.01% | +735+1.0% | Added |
| First Trust Advisors LP | 75,238 | $4.29M | 0.00% | −50.0% | Reduced |
| Castellan Group, LLC | 77,053 | $4.40M | 0.61% | +5,609+7.9% | Added |
| Spirit of America Management Corp | 79,397 | $4.53M | 0.89% | −11,000−12.2% | Reduced |
| Pinnacle Holdings, LLC | 79,676 | $4.55M | 1.47% | −1,174−1.5% | Reduced |
| Mercer Global Advisors Inc | 80,937 | $4.62M | 0.01% | −2,273−2.7% | Reduced |
| ELCO Management Co., LLC | 82,237 | $4.69M | 2.25% | +56,157+215.3% | Added |
| GWM Advisors LLC | 82,799 | $4.73M | 0.02% | −3,826−4.4% | Reduced |
| Captrust Financial Advisors | 83,760 | $4.78M | 0.01% | +3,347+4.2% | Added |
| PPM America Inc | 87,200 | $4.98M | 29.98% | 00.0% | Unchanged |
| Adell Harriman & Carpenter Inc | 88,395 | $5.04M | 0.31% | +725+0.8% | Added |
| Cambridge Investment Research Advisors, Inc. | 92,065 | $5.25M | 0.01% | −67,612−42.3% | Reduced |
| Private Wealth Partners, LLC | 94,400 | $5.39M | 0.42% | 00.0% | Unchanged |
| FourThought Financial Partners, LLC | 94,964 | $5.42M | 0.47% | +7,720+8.8% | Added |
| Brown Advisory Inc | 96,240 | $5.49M | 0.01% | −3,065−3.1% | Reduced |
| CoreCap Advisors, LLC | 97,657 | $5.57M | 0.19% | +4,067+4.3% | Added |
| Objectivity Squared, LLC | 101,203 | $5.78M | 3.64% | +1,891+1.9% | Added |
| Janney Montgomery Scott LLC | 102,197 | $5.83M | 0.01% | −5,559−5.2% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 113,934 | $6.37M | 0.01% | −20,706−15.4% | Reduced |
| Van Eck Associates Corp | 112,001 | $6.39M | 0.00% | +45,762+69.1% | Added |
| Bridges Investment Management Inc | 114,164 | $6.52M | 0.09% | +10,813+10.5% | Added |
| The PNC Financial Services Group, Inc. | 117,397 | $6.70M | 0.00% | +2,974+2.6% | Added |
| Advisor Group Holdings, Inc. | 121,803 | $6.95M | 0.01% | −28,943−19.2% | Reduced |
| Commonwealth Equity Services, LLC | 131,972 | $7.53M | 0.01% | −25,217−16.0% | Reduced |
| Evercore Wealth Management, LLC | 132,053 | $7.54M | 0.12% | 00.0% | Unchanged |
| Kercheville Advisors, LLC | 135,336 | $7.72M | 2.47% | +4,000+3.0% | Added |
| Kestra Advisory Services, LLC | 138,561 | $7.91M | 0.03% | +7,866+6.0% | Added |
| BlackRock, Inc. | 141,239 | $8.06M | 0.00% | −371−0.3% | Reduced |
| Cresset Asset Management, LLC | 142,013 | $8.10M | 0.04% | +41,477+41.3% | Added |
| Turtle Creek Wealth Advisors, LLC | 146,090 | $8.34M | 0.63% | 00.0% | Unchanged |
| Blueprint Investment Partners LLC | 151,993 | $8.67M | 0.88% | +995+0.7% | Added |
| Stephens Inc | 151,660 | $8.69M | 0.11% | +13,995+10.2% | Added |
| Blueprint Financial Advisors LLC | 153,993 | $8.79M | 1.30% | +995+0.7% | Added |
| Gilman Hill Asset Management, LLC | 154,975 | $8.84M | 1.33% | +12,154+8.5% | Added |
| Advisors Capital Management, LLC | 156,972 | $8.96M | 0.10% | +2,673+1.7% | Added |
| Parkwood LLC | 161,615 | $9.22M | 0.82% | −8,361−4.9% | Reduced |
| Hennessy Advisors Inc | 162,519 | $9.27M | 0.33% | −14,030−7.9% | Reduced |
| Advisors Asset Management, Inc. | 163,380 | $9.32M | 0.16% | +5,448+3.4% | Added |
| Glenmede Trust Co NA | 175,835 | $10.0M | 0.05% | 00.0% | Unchanged |
| Evergreen Capital Management LLC | 183,994 | $10.5M | 0.23% | −5,500−2.9% | Reduced |
| Avenir Corp | 186,892 | $10.7M | 1.30% | 00.0% | Unchanged |
| United Capital Financial Advisers, LLC | 187,804 | $10.7M | 0.07% | +15,284+8.9% | Added |
| Cetera Investment Advisers | 199,111 | $11.4M | 0.01% | −1,406−0.7% | Reduced |
| Sequoia Financial Advisors, LLC | 200,244 | $11.4M | 0.06% | +5,209+2.7% | Added |
| RR Advisors, LLC | 214,194 | $12.2M | 3.39% | +4,756+2.3% | Added |
| Adams Asset Advisors, LLC | 216,096 | $12.3M | 1.38% | +6,507+3.1% | Added |
| Empowered Funds, LLC | 217,494 | $12.4M | 0.08% | +86,020+65.4% | Added |
| Empirical Finance, LLC | 217,494 | $12.4M | 0.58% | +100,927+86.6% | Added |
| Citigroup Inc | 221,856 | $12.7M | 0.01% | −242,009−52.2% | Reduced |
| Deroy & Devereaux Private Investment Counsel Inc | 227,482 | $13.0M | 0.62% | 00.0% | Unchanged |
| Wiley Bros.-Aintree Capital, LLC | 230,542 | $13.2M | 0.07% | +13,582+6.3% | Added |
| Opal Capital LLC | 231,535 | $13.2M | 2.34% | +11,746+5.3% | Added |
| TrueMark Investments, LLC | 231,817 | $13.2M | 2.58% | +13,785+6.3% | Added |
| Rockefeller Capital Management L.P. | 235,546 | $13.4M | 0.02% | +46,409+24.5% | Added |
| Warren Averett Asset Management, LLC | 240,925 | $13.7M | 0.10% | −5,340−2.2% | Reduced |
| Envestnet Asset Management Inc | 248,810 | $14.2M | 0.00% | +24,500+10.9% | Added |
| Susquehanna Portfolio Strategies, LLC | 253,188 | $14.4M | 0.21% | −29,580−10.5% | Reduced |
| Private Capital Advisors, Inc. | 257,752 | $14.7M | 1.69% | +1,000+0.4% | Added |
| Tectonic Advisors LLC | 262,635 | $15.0M | 0.79% | +9,947+3.9% | Added |
| Walnut Private Equity Partners, LLC | 266,500 | $15.2M | 8.39% | +9,000+3.5% | Added |
| Catalyst Capital Advisors LLC | 278,599 | $15.9M | 0.30% | +3,619+1.3% | Added |
| Texas Yale Capital Corp. | 317,120 | $18.1M | 0.51% | +5,675+1.8% | Added |
| Jump Financial, LLC | 322,233 | $18.4M | 0.27% | +21,468+7.1% | Added |
| Heronetta Management, L.P. | 324,039 | $18.5M | 16.88% | +400+0.1% | Added |
| NEOS Investment Management LLC | 333,984 | $19.1M | 0.10% | +306,851+1,130.9% | Added |
| Nuveen, LLC | 336,834 | $19.2M | 0.01% | +139,417+70.6% | Added |
| CI Private Wealth, LLC | 337,721 | $19.3M | 0.03% | +57,619+20.6% | Added |
| Maryland State Retirement & Pension System | 339,111 | $19.4M | 0.39% | −15,415−4.3% | Reduced |
| Goldentree Asset Management LP | 344,686 | $19.7M | 1.17% | −80,200−18.9% | Reduced |
| Northside Capital Management, LLC | 362,108 | $20.7M | 1.81% | −227,972−38.6% | Reduced |
| HighTower Advisors, LLC | 363,678 | $20.8M | 0.02% | −3,035−0.8% | Reduced |
| Sovereign Investment Advisors, LLC | 373,955 | $21.3M | 4.52% | +1,747+0.5% | Added |
| Exchange Traded Concepts, LLC | 403,877 | $23.0M | 0.18% | −154,860−27.7% | Reduced |
| Bollard Group LLC | 405,728 | $23.2M | 0.71% | +52,308+14.8% | Added |
| Oxbow Advisors, LLC | 434,012 | $24.8M | 2.11% | +28,838+7.1% | Added |
| Chicago Partners Investment Group LLC | 486,668 | $27.1M | 0.61% | +7,064+1.5% | Added |
| LPL Financial LLC | 476,689 | $27.2M | 0.01% | −2,209−0.5% | Reduced |
| Appaloosa LPSuperinvestorAppaloosa | 502,460 | $28.7M | 0.48% | −125,040−19.9% | Reduced |
| Jennison Associates LLC | 545,070 | $31.1M | 0.02% | −125,257−18.7% | Reduced |