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; 641 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
- 648
- +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
- 218 more added
- Sold out
- 57
- 173 more reduced
5 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 | 641 | $11.1B |
| Q1 2026 | 648 | $11.6B |
| Q4 2025 | 634 | $9.52B |
| Q3 2025 | 578 | $10.5B |
| Q2 2025 | 577 | $11.2B |
| Q1 2025 | 572 | $11.6B |
| Q4 2024 | 536 | $10.4B |
| Q3 2024 | 502 | $10.3B |
| Q2 2024 | 490 | $10.2B |
| Q1 2024 | 479 | $9.32B |
| Q4 2023 | 443 | $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 | 349 | $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 |
|---|---|---|---|---|---|
| Alps Advisors Inc | 27,070,962 | $1.54B | 7.27% | +26,641,396+6,201.9% | Added |
| Invesco Ltd. | 18,266,606 | $1.04B | 0.10% | +78,728+0.4% | Added |
| Blackstone Group Inc. | 15,350,683 | $876.1M | 2.92% | −354,802−2.3% | Reduced |
| Tortoise Capital Advisors, L.L.C. | 13,260,584 | $756.8M | 7.88% | −59,334−0.4% | Reduced |
| Goldman Sachs Group Inc | 12,507,539 | $713.8M | 0.09% | +40,552+0.3% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 7,319,250 | $417.7M | 0.57% | +410,868+5.9% | Added |
| Kayne Anderson Capital Advisors LP | 6,826,567 | $389.6M | 7.47% | −400,833−5.5% | Reduced |
| UBS Group AG | 5,233,512 | $298.7M | 0.05% | −71,234−1.3% | Reduced |
| Chickasaw Capital Management LLC | 5,222,687 | $298.1M | 10.54% | −207,219−3.8% | Reduced |
| Energy Income Partners, LLC | 5,157,478 | $294.3M | 4.74% | −142,246−2.7% | Reduced |
| Morgan Stanley | 4,964,199 | $283.3M | 0.02% | −798,911−13.9% | Reduced |
| JPMorgan Chase & Co | 4,133,666 | $238.4M | 0.02% | +847,524+25.8% | Added |
| Bank of Montreal | 4,027,427 | $229.8M | 0.10% | +4,021,783+71,257.7% | Added |
| FMR LLC | 3,360,863 | $191.8M | 0.01% | +1,692,220+101.4% | Added |
| Brave Warrior Advisors, LLC | 3,253,524 | $185.7M | 4.60% | −1,220,591−27.3% | Reduced |
| CIBC Bancorp USA Inc. | 2,642,104 | $148.3M | 0.20% | +2,642,104 | New |
| Bank of America Corp | 2,573,276 | $146.9M | 0.01% | −5,957,790−69.8% | Reduced |
| Clearbridge Investments, LLC | 2,343,689 | $133.8M | 0.12% | 00.0% | Unchanged |
| Miller Howard Investments Inc | 2,239,694 | $127.8M | 3.49% | −76,227−3.3% | Reduced |
| Westwood Holdings Group Inc. | 2,236,856 | $127.7M | 0.93% | +2,194,739+5,211.1% | Added |
| Brookfield Asset Management Inc. | 2,173,816 | $124.1M | 0.17% | −786,014−26.6% | Reduced |
| Fractal Investments LLC | 2,051,301 | $117.1M | 13.85% | 00.0% | Unchanged |
| Cushing Asset Management, LP | 1,859,100 | $106.1M | 5.28% | −24,700−1.3% | Reduced |
| Eagle Global Advisors LLC | 1,805,346 | $103.0M | 3.71% | −79,239−4.2% | Reduced |
| ING Groep NV | 1,768,200 | $100.9M | 0.62% | −1,135,600−39.1% | Reduced |
| Duff & Phelps Investment Management Co | 1,668,467 | $95.2M | 0.99% | −163,536−8.9% | Reduced |
| AlphaCore Capital LLC | 1,615,514 | $92.2M | 2.19% | +8,912+0.6% | Added |
| Stifel Financial Corp | 1,330,465 | $75.9M | 0.07% | +2,326+0.2% | Added |
| BNP Paribas Arbitrage, SA | 1,290,542 | $73.7M | 0.05% | +184,415+16.7% | Added |
| Mariner, LLC | 1,152,602 | $65.8M | 0.08% | −674−0.1% | Reduced |
| Royal Bank of Canada | 1,151,905 | $65.7M | 0.01% | +360,427+45.5% | Added |
| Epoch Investment Partners, Inc. | 1,127,544 | $64.3M | 0.39% | −29,045−2.5% | Reduced |
| Neuberger Berman Group LLC | 1,100,009 | $62.8M | 0.05% | −24,261−2.2% | Reduced |
| Infrastructure Capital Advisors, LLC | 1,068,251 | $61.0M | 5.72% | +30,267+2.9% | Added |
| Progeny 3, Inc. | 1,015,966 | $58.0M | 3.10% | −42,993−4.1% | Reduced |
| Raymond James Financial Inc | 977,940 | $55.8M | 0.02% | +22,242+2.3% | Added |
| Victory Capital Management Inc | 971,477 | $55.4M | 0.04% | +906,755+1,401.0% | Added |
| Cohen & Steers, Inc. | 929,751 | $53.1M | 0.09% | +49,158+5.6% | Added |
| Barclays PLC | 887,228 | $50.6M | 0.02% | −28,463−3.1% | Reduced |
| Deutsche Bank AG | 853,780 | $48.7M | 0.02% | 00.0% | Unchanged |
| Allianz Asset Management GmbH | 829,136 | $47.3M | 0.05% | 00.0% | Unchanged |
| Wells Fargo & Company | 805,230 | $46.0M | 0.01% | +56,560+7.6% | Added |
| Americana Partners, LLC | 765,467 | $43.7M | 1.13% | +5,161+0.7% | Added |
| Reaves W H & Co Inc | 670,500 | $38.3M | 0.63% | 00.0% | Unchanged |
| Longfellow Investment Management Co LLC | 579,453 | $33.1M | 6.89% | −187,076−24.4% | Reduced |
| U.S. Capital Wealth Advisors, LLC | 577,581 | $33.0M | 0.83% | −840−0.1% | Reduced |
| Jennison Associates LLC | 545,070 | $31.1M | 0.02% | −125,257−18.7% | Reduced |
| Appaloosa LPSuperinvestorAppaloosa | 502,460 | $28.7M | 0.48% | −125,040−19.9% | Reduced |
| LPL Financial LLC | 476,689 | $27.2M | 0.01% | −2,209−0.5% | Reduced |
| Chicago Partners Investment Group LLC | 486,668 | $27.1M | 0.61% | +7,064+1.5% | Added |
| Oxbow Advisors, LLC | 434,012 | $24.8M | 2.11% | +28,838+7.1% | Added |
| Bollard Group LLC | 405,728 | $23.2M | 0.71% | +52,308+14.8% | Added |
| Exchange Traded Concepts, LLC | 403,877 | $23.0M | 0.18% | −154,860−27.7% | Reduced |
| Sovereign Investment Advisors, LLC | 373,955 | $21.3M | 4.52% | +1,747+0.5% | Added |
| HighTower Advisors, LLC | 363,678 | $20.8M | 0.02% | −3,035−0.8% | Reduced |
| Northside Capital Management, LLC | 362,108 | $20.7M | 1.81% | −227,972−38.6% | Reduced |
| Goldentree Asset Management LP | 344,686 | $19.7M | 1.17% | −80,200−18.9% | Reduced |
| Maryland State Retirement & Pension System | 339,111 | $19.4M | 0.39% | −15,415−4.3% | Reduced |
| CI Private Wealth, LLC | 337,721 | $19.3M | 0.03% | +57,619+20.6% | Added |
| Nuveen, LLC | 336,834 | $19.2M | 0.01% | +139,417+70.6% | Added |
| NEOS Investment Management LLC | 333,984 | $19.1M | 0.10% | +306,851+1,130.9% | Added |
| Heronetta Management, L.P. | 324,039 | $18.5M | 16.88% | +400+0.1% | Added |
| Jump Financial, LLC | 322,233 | $18.4M | 0.27% | +21,468+7.1% | Added |
| Texas Yale Capital Corp. | 317,120 | $18.1M | 0.51% | +5,675+1.8% | Added |
| Catalyst Capital Advisors LLC | 278,599 | $15.9M | 0.30% | +3,619+1.3% | Added |
| Walnut Private Equity Partners, LLC | 266,500 | $15.2M | 8.39% | +9,000+3.5% | Added |
| Tectonic Advisors LLC | 262,635 | $15.0M | 0.79% | +9,947+3.9% | Added |
| Private Capital Advisors, Inc. | 257,752 | $14.7M | 1.69% | +1,000+0.4% | Added |
| Susquehanna Portfolio Strategies, LLC | 253,188 | $14.4M | 0.21% | −29,580−10.5% | Reduced |
| Envestnet Asset Management Inc | 248,810 | $14.2M | 0.00% | +24,500+10.9% | Added |
| Warren Averett Asset Management, LLC | 240,925 | $13.7M | 0.10% | −5,340−2.2% | Reduced |
| Rockefeller Capital Management L.P. | 235,546 | $13.4M | 0.02% | +46,409+24.5% | Added |
| TrueMark Investments, LLC | 231,817 | $13.2M | 2.58% | +13,785+6.3% | Added |
| Opal Capital LLC | 231,535 | $13.2M | 2.34% | +11,746+5.3% | Added |
| Wiley Bros.-Aintree Capital, LLC | 230,542 | $13.2M | 0.07% | +13,582+6.3% | Added |
| Deroy & Devereaux Private Investment Counsel Inc | 227,482 | $13.0M | 0.62% | 00.0% | Unchanged |
| Citigroup Inc | 221,856 | $12.7M | 0.01% | −242,009−52.2% | Reduced |
| 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 |
| Adams Asset Advisors, LLC | 216,096 | $12.3M | 1.38% | +6,507+3.1% | Added |
| RR Advisors, LLC | 214,194 | $12.2M | 3.39% | +4,756+2.3% | Added |
| Sequoia Financial Advisors, LLC | 200,244 | $11.4M | 0.06% | +5,209+2.7% | Added |
| Cetera Investment Advisers | 199,111 | $11.4M | 0.01% | −1,406−0.7% | Reduced |
| United Capital Financial Advisers, LLC | 187,804 | $10.7M | 0.07% | +15,284+8.9% | Added |
| Avenir Corp | 186,892 | $10.7M | 1.30% | 00.0% | Unchanged |
| Evergreen Capital Management LLC | 183,994 | $10.5M | 0.23% | −5,500−2.9% | Reduced |
| Glenmede Trust Co NA | 175,835 | $10.0M | 0.05% | 00.0% | Unchanged |
| Advisors Asset Management, Inc. | 163,380 | $9.32M | 0.16% | +5,448+3.4% | Added |
| Hennessy Advisors Inc | 162,519 | $9.27M | 0.33% | −14,030−7.9% | Reduced |
| Parkwood LLC | 161,615 | $9.22M | 0.82% | −8,361−4.9% | Reduced |
| Advisors Capital Management, LLC | 156,972 | $8.96M | 0.10% | +2,673+1.7% | Added |
| Gilman Hill Asset Management, LLC | 154,975 | $8.84M | 1.33% | +12,154+8.5% | Added |
| Blueprint Financial Advisors LLC | 153,993 | $8.79M | 1.30% | +995+0.7% | Added |
| Stephens Inc | 151,660 | $8.69M | 0.11% | +13,995+10.2% | Added |
| Blueprint Investment Partners LLC | 151,993 | $8.67M | 0.88% | +995+0.7% | Added |
| Turtle Creek Wealth Advisors, LLC | 146,090 | $8.34M | 0.63% | 00.0% | Unchanged |
| Cresset Asset Management, LLC | 142,013 | $8.10M | 0.04% | +41,477+41.3% | Added |
| BlackRock, Inc. | 141,239 | $8.06M | 0.00% | −371−0.3% | Reduced |
| Kestra Advisory Services, LLC | 138,561 | $7.91M | 0.03% | +7,866+6.0% | Added |
| Kercheville Advisors, LLC | 135,336 | $7.72M | 2.47% | +4,000+3.0% | Added |