MPLX LP MPLX
COM UNIT REP LTD · MLP · CUSIP 55336V100
Public company in the United States
- SectorEnergy
- IndustryPipe Lines (No Natural Gas)
- HeadquartersFindlay, OH
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($15.7m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $57.06. Options: 8 managers hold calls ($230.8m notional), 8 hold puts ($48.7m).
Trends to Q1 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 342 |
| Q4 2022 | 358 |
| Q1 2023 | 380 |
| Q2 2023 | 370 |
| Q3 2023 | 398 |
| Q4 2023 | 444 |
| Q1 2024 | 480 |
| Q2 2024 | 491 |
| Q3 2024 | 502 |
| Q4 2024 | 535 |
| Q1 2025 | 571 |
| Q2 2025 | 576 |
| Q3 2025 | 576 |
| Q4 2025 | 632 |
| Q1 2026 | 645 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 238 | 126 |
| Q3 2024 | 244 | 128 |
| Q4 2024 | 245 | 149 |
| Q1 2025 | 277 | 162 |
| Q2 2025 | 270 | 181 |
| Q3 2025 | 273 | 165 |
| Q4 2025 | 299 | 167 |
| Q1 2026 | 285 | 231 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $167.7m | $74.9m | 0.45 |
| Q3 2025 | $144.2m | $96.3m | 0.67 |
| Q4 2025 | $278.0m | $72.7m | 0.26 |
| Q1 2026 | $230.8m | $48.7m | 0.21 |
Biggest buyers
| ALPS ADVISORS INC | Added | +26.6m |
| BANK OF MONTREAL /CAN/ | Added | +4.0m |
| WESTWOOD HOLDINGS GROUP INC | Added | +2.2m |
| FMR LLC | Added | +1.7m |
| VICTORY CAPITAL MANAGEMENT INC | Added | +906.8k |
| JPMORGAN CHASE & CO | Added | +847.5k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | Added | +410.9k |
| ROYAL BANK OF CANADA | Added | +360.4k |
| NEOS Investment Management LLC | Added | +306.9k |
| BNP PARIBAS FINANCIAL MARKETS | Added | +184.4k |
Biggest sellers
| BANK OF AMERICA CORP /DE/ | Reduced | -6.0m |
| Brave Warrior Advisors, LLC | Reduced | -1.2m |
| ING GROEP NV | Reduced | -1.1m |
| MORGAN STANLEY | Reduced | -798.9k |
| Brookfield Corp /ON/ | Reduced | -786.0k |
| Corient Private Wealth LP | Reduced | -502.0k |
| KAYNE ANDERSON CAPITAL ADVISORS LP | Reduced | -400.8k |
| Blackstone Inc. | Reduced | -354.8k |
| HRT FINANCIAL LP | Reduced | -266.1k |
| CITIGROUP INC | Reduced | -242.0k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $62.2m1.1m shares |
| PEAK6 LLC | Reduced | $54.6m956.6k shares |
| JANE STREET GROUP, LLC | Added | $39.1m685.9k shares |
| GROUP ONE TRADING LLC | Added | $26.7m468.2k shares |
| CITADEL ADVISORS LLC | Reduced | $22.5m394.6k shares |
| SIMPLEX TRADING, LLC | Reduced | $13.0m227.0k shares |
| IMC-Chicago, LLC | Added | $10.3m180.4k shares |
| Caption Management, LLC | New | $2.4m41.9k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $31.3m549.2k shares |
| IMC-Chicago, LLC | Reduced | $5.8m101.9k shares |
| CITADEL ADVISORS LLC | Reduced | $5.0m88.2k shares |
| JANE STREET GROUP, LLC | Reduced | $3.6m62.4k shares |
| GROUP ONE TRADING LLC | Reduced | $1.9m33.2k shares |
| SIMPLEX TRADING, LLC | Reduced | $1.0m18.2k shares |
| PEAK6 LLC | New | $39.9k700 shares |
| SIGNATUREFD, LLC | Unchanged | $17.1k5.0k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Insider purchases and sales in Q1 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 0 | — | 0 | — | — |
| Q4 2024 | 0 | — | 1 | $189.0k | — |
| Q1 2025 | 1 | $211.0k | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
None reported in Q1 2026.
Holders, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| ALPS ADVISORS INC 7.27% of their portfolio | 27.1m $1.5bn | Added +26.6m |
| Invesco Ltd. 0.10% of their portfolio | 18.3m $1.0bn | Added +78.7k |
| Blackstone Inc. 3.58% of their portfolio | 15.4m $876.1m | Reduced -354.8k |
| TORTOISE CAPITAL ADVISORS, L.L.C. 7.88% of their portfolio | 13.3m $756.8m | Reduced -59.3k |
| GOLDMAN SACHS GROUP INC 0.09% of their portfolio | 12.5m $713.8m | Added +40.6k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.57% of their portfolio | 7.3m $417.7m | Added +410.9k |
| KAYNE ANDERSON CAPITAL ADVISORS LP 7.47% of their portfolio | 6.8m $389.6m | Reduced -400.8k |
| UBS Group AG 0.05% of their portfolio | 5.2m $298.7m | Reduced -71.2k |
| CHICKASAW CAPITAL MANAGEMENT LLC 10.54% of their portfolio | 5.2m $298.1m | Reduced -207.2k |
| Energy Income Partners, LLC 4.74% of their portfolio | 5.2m $294.3m | Reduced -142.2k |
| MORGAN STANLEY 0.02% of their portfolio | 5.0m $283.3m | Reduced -798.9k |
| JPMORGAN CHASE & CO 0.02% of their portfolio | 4.1m $238.4m | Added +847.5k |
| BANK OF MONTREAL /CAN/ 0.09% of their portfolio | 4.0m $229.8m | Added +4.0m |
| FMR LLC 0.01% of their portfolio | 3.4m $191.8m | Added +1.7m |
| Brave Warrior Advisors, LLC 4.60% of their portfolio | 3.3m $185.7m | Reduced -1.2m |
| CIBC Bancorp USA Inc. 0.20% of their portfolio | 2.6m $148.3m | First filing |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 2.6m $146.9m | Reduced -6.0m |
| Clearbridge Investments, LLC 0.12% of their portfolio | 2.3m $133.8m | Unchanged |
| MILLER HOWARD INVESTMENTS INC /NY 3.49% of their portfolio | 2.2m $127.8m | Reduced -76.2k |
| WESTWOOD HOLDINGS GROUP INC 0.93% of their portfolio | 2.2m $127.7m | Added +2.2m |
| Brookfield Corp /ON/ 0.17% of their portfolio | 2.2m $124.1m | Reduced -786.0k |
| Fractal Investments LLC 13.85% of their portfolio | 2.1m $117.1m | Unchanged |
| CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT 5.28% of their portfolio | 1.9m $106.1m | Reduced -24.7k |
| EAGLE GLOBAL ADVISORS LLC 3.71% of their portfolio | 1.8m $103.0m | Reduced -79.2k |
| ING GROEP NV 0.62% of their portfolio | 1.8m $100.9m | Reduced -1.1m |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO 0.99% of their portfolio | 1.7m $95.2m | Reduced -163.5k |
| AlphaCore Capital LLC 2.19% of their portfolio | 1.6m $92.2m | Added +8.9k |
| STIFEL FINANCIAL CORP 0.07% of their portfolio | 1.3m $75.9m | Added +2.3k |
| BNP PARIBAS FINANCIAL MARKETS 0.05% of their portfolio | 1.3m $73.7m | Added +184.4k |
| Mariner, LLC 0.08% of their portfolio | 1.2m $65.8m | Reduced -674 |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 1.2m $65.7m | Added +360.4k |
| Epoch Investment Partners, Inc. 0.39% of their portfolio | 1.1m $64.3m | Reduced -29.0k |
| NEUBERGER BERMAN GROUP LLC 0.05% of their portfolio | 1.1m $62.8m | Reduced -24.3k |
| INFRASTRUCTURE CAPITAL ADVISORS, LLC 5.72% of their portfolio | 1.1m $61.0m | Added +30.3k |
| Progeny 3, Inc. 3.10% of their portfolio | 1.0m $58.0m | Reduced -43.0k |
| RAYMOND JAMES FINANCIAL INC 0.02% of their portfolio | 977.9k $55.8m | Added +22.2k |
| VICTORY CAPITAL MANAGEMENT INC 0.04% of their portfolio | 971.5k $55.4m | Added +906.8k |
| COHEN & STEERS, INC. 0.09% of their portfolio | 929.8k $53.1m | Added +49.2k |
| BARCLAYS PLC 0.02% of their portfolio | 887.2k $50.6m | Reduced -28.5k |
| DEUTSCHE BANK AG\ 0.02% of their portfolio | 853.8k $48.7m | Unchanged |
| Allianz Asset Management GmbH 0.05% of their portfolio | 829.1k $47.3m | Unchanged |
| WELLS FARGO & COMPANY/MN 0.01% of their portfolio | 805.2k $46.0m | Added +56.6k |
| Americana Partners, LLC 1.13% of their portfolio | 765.5k $43.7m | Added +5.2k |
| REAVES W H & CO INC 0.63% of their portfolio | 670.5k $38.3m | Unchanged |
| LONGFELLOW INVESTMENT MANAGEMENT CO LLC 6.89% of their portfolio | 579.5k $33.1m | Reduced -187.1k |
| U.S. Capital Wealth Advisors, LLC 0.83% of their portfolio | 577.6k $33.0m | Reduced -840 |
| JENNISON ASSOCIATES LLC 0.02% of their portfolio | 545.1k $31.1m | Reduced -125.3k |
| APPALOOSA LP 0.48% of their portfolio | 502.5k $28.7m | Reduced -125.0k |
| Chicago Partners Investment Group LLC 0.61% of their portfolio | 486.7k $27.1m | Added +7.1k |
| LPL Financial LLC 0.01% of their portfolio | 476.7k $27.2m | Reduced -2.2k |
| Oxbow Advisors, LLC 2.11% of their portfolio | 434.0k $24.8m | Added +28.8k |
| Bollard Group LLC 0.71% of their portfolio | 405.7k $23.2m | Added +52.3k |
| EXCHANGE TRADED CONCEPTS, LLC 0.18% of their portfolio | 403.9k $23.0m | Reduced -154.9k |
| Sovereign Investment Advisors, LLC 4.52% of their portfolio | 374.0k $21.3m | Added +1.7k |
| HighTower Advisors, LLC 0.02% of their portfolio | 363.7k $20.8m | Reduced -3.0k |
| Northside Capital Management, LLC 1.81% of their portfolio | 362.1k $20.7m | Reduced -228.0k |
| GOLDENTREE ASSET MANAGEMENT LP 1.17% of their portfolio | 344.7k $19.7m | Reduced -80.2k |
| Maryland State Retirement & Pension System 0.39% of their portfolio | 339.1k $19.4m | Reduced -15.4k |
| Corient Private Wealth LP 0.03% of their portfolio | 337.7k $19.3m | Reduced -502.0k |
| Nuveen, LLC 0.01% of their portfolio | 336.8k $19.2m | Added +139.4k |
| NEOS Investment Management LLC 0.10% of their portfolio | 334.0k $19.1m | Added +306.9k |
| Heronetta Management, L.P. 16.88% of their portfolio | 324.0k $18.5m | Added +400 |
| Jump Financial, LLC 0.27% of their portfolio | 322.2k $18.4m | Added +21.5k |
| Texas Yale Capital Corp. 0.51% of their portfolio | 317.1k $18.1m | Added +5.7k |
| Catalyst Capital Advisors LLC 0.30% of their portfolio | 278.6k $15.9m | Added +3.6k |
| WALNUT PRIVATE EQUITY PARTNERS, LLC 8.39% of their portfolio | 266.5k $15.2m | Added +9.0k |
| TECTONIC ADVISORS LLC 0.79% of their portfolio | 262.6k $15.0m | Added +9.9k |
| Private Capital Advisors, Inc. 1.69% of their portfolio | 257.8k $14.7m | Added +1.0k |
| Susquehanna Portfolio Strategies, LLC 0.21% of their portfolio | 253.2k $14.4m | Reduced -29.6k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 248.8k $14.2m | Added +24.5k |
| Waverly Advisors, LLC 0.10% of their portfolio | 240.9k $13.7m | Reduced -5.3k |
| Rockefeller Capital Management L.P. 0.02% of their portfolio | 235.5k $13.4m | Added +46.4k |
| TrueMark Investments, LLC 2.58% of their portfolio | 231.8k $13.2m | Added +13.8k |
| OPAL CAPITAL LLC 2.34% of their portfolio | 231.5k $13.2m | Added +11.7k |
| &PARTNERS 0.07% of their portfolio | 230.5k $13.2m | Added +13.6k |
| DEROY & DEVEREAUX PRIVATE INVESTMENT COUNSEL INC 0.62% of their portfolio | 227.5k $13.0m | Unchanged |
| CITIGROUP INC 0.01% of their portfolio | 221.9k $12.7m | Reduced -242.0k |
| Empirical Finance, LLC 0.58% of their portfolio | 217.5k $12.4m | Added +100.9k |
| Empowered Funds, LLC 0.08% of their portfolio | 217.5k $12.4m | Added +86.0k |
| Adams Asset Advisors, LLC 1.38% of their portfolio | 216.1k $12.3m | Added +6.5k |
| RR Advisors, LLC 3.39% of their portfolio | 214.2k $12.2m | Added +4.8k |
| Militia Capital Management LLC 0.86% of their portfolio | 201.0k $11.5m | First filing |
| Sequoia Financial Advisors, LLC 0.06% of their portfolio | 200.2k $11.4m | Added +5.2k |
| Cetera Investment Advisers 0.01% of their portfolio | 199.1k $11.4m | Reduced -1.4k |
| UNITED CAPITAL FINANCIAL ADVISORS, LLC 0.07% of their portfolio | 187.8k $10.7m | Added +15.3k |
| AVENIR CORP 1.30% of their portfolio | 186.9k $10.7m | Unchanged |
| EVERGREEN CAPITAL MANAGEMENT LLC 0.23% of their portfolio | 184.0k $10.5m | Reduced -5.5k |
| GLENMEDE TRUST CO NA 0.05% of their portfolio | 175.8k $10.0m | Unchanged |
| Advisors Asset Management, Inc. 0.16% of their portfolio | 163.4k $9.3m | Added +5.4k |
| HENNESSY ADVISORS INC 0.33% of their portfolio | 162.5k $9.3m | Reduced -14.0k |
| Parkwood LLC 0.82% of their portfolio | 161.6k $9.2m | Reduced -8.4k |
| Advisors Capital Management, LLC 0.10% of their portfolio | 157.0k $9.0m | Added +2.7k |
| Gilman Hill Asset Management, LLC 1.33% of their portfolio | 155.0k $8.8m | Added +12.2k |
| Blueprint Financial Advisors LLC 1.30% of their portfolio | 154.0k $8.8m | Added +995 |
| Blueprint Investment Partners LLC 0.88% of their portfolio | 152.0k $8.7m | Added +995 |
| STEPHENS INC /AR/ 0.11% of their portfolio | 151.7k $8.7m | Added +14.0k |
| Turtle Creek Wealth Advisors, LLC 0.63% of their portfolio | 146.1k $8.3m | Unchanged |
| Cresset Asset Management, LLC 0.04% of their portfolio | 142.0k $8.1m | Added +41.5k |
| BlackRock, Inc. 0.00% of their portfolio | 141.2k $8.1m | Reduced -371 |
| Kestra Advisory Services, LLC 0.03% of their portfolio | 138.6k $7.9m | Added +7.9k |