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 ($15.0m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $53.38. Options: 10 managers hold calls ($278.0m notional), 10 hold puts ($72.7m).
Trends to Q4 2025
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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2024 | 223 | 162 |
| 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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2025 | $280.0m | $76.8m | 0.27 |
| Q2 2025 | $167.7m | $74.9m | 0.45 |
| Q3 2025 | $144.2m | $96.3m | 0.67 |
| Q4 2025 | $278.0m | $72.7m | 0.26 |
Biggest buyers
| Blackstone Inc. | Added | +1.7m |
| MORGAN STANLEY | Added | +1.1m |
| Corient Private Wealth LP | Added | +558.4k |
| CITADEL ADVISORS LLC | New | +236.5k |
| Americana Partners, LLC | Added | +211.7k |
| COHEN & STEERS, INC. | Added | +189.3k |
| EXCHANGE TRADED CONCEPTS, LLC | Added | +179.4k |
| Clearbridge Investments, LLC | Added | +172.0k |
| UNITED CAPITAL FINANCIAL ADVISORS, LLC | Added | +166.4k |
| CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT | Added | +150.0k |
Biggest sellers
| ALPS ADVISORS INC | Reduced | -26.0m |
| JPMORGAN CHASE & CO | Reduced | -6.0m |
| WESTWOOD HOLDINGS GROUP INC | Reduced | -2.2m |
| ING GROEP NV | Reduced | -1.4m |
| Invesco Ltd. | Reduced | -1.4m |
| NATIXIS | Reduced | -949.8k |
| BANK OF AMERICA CORP /DE/ | Reduced | -814.9k |
| GOLDMAN SACHS GROUP INC | Reduced | -629.2k |
| BlackRock, Inc. | Reduced | -442.0k |
| Energy Income Partners, LLC | Reduced | -360.2k |
Biggest calls
| PEAK6 LLC | Added | $119.6m2.2m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $53.5m1.0m shares |
| CITADEL ADVISORS LLC | Added | $27.7m519.8k shares |
| JANE STREET GROUP, LLC | Added | $27.2m510.3k shares |
| GROUP ONE TRADING LLC | Reduced | $15.6m291.7k shares |
| SIMPLEX TRADING, LLC | Reduced | $15.2m284.6k shares |
| Jefferies Financial Group Inc. | New | $11.7m219.2k shares |
| IMC-Chicago, LLC | Added | $7.2m134.4k shares |
| Squarepoint Ops LLC | Unchanged | $325.6k6.1k shares |
| LANARK FINANCIAL, INC. | Unchanged | $4204 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $35.5m664.8k shares |
| CITADEL ADVISORS LLC | Added | $15.0m281.9k shares |
| IMC-Chicago, LLC | Reduced | $5.8m108.1k shares |
| SIMPLEX TRADING, LLC | Reduced | $5.5m102.8k shares |
| JANE STREET GROUP, LLC | Reduced | $4.3m81.2k shares |
| GROUP ONE TRADING LLC | Added | $2.7m51.4k shares |
| Squarepoint Ops LLC | Unchanged | $1.6m30.1k shares |
| SUMMIT SECURITIES GROUP LLC | Added | $1.3m23.5k shares |
| VELA Investment Management, LLC | Unchanged | $1.0m19.1k shares |
| SIGNATUREFD, LLC | Unchanged | $4.5k5.0k 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 Q4 2025
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 |
|---|---|---|---|---|---|
| Q1 2024 | 0 | — | 0 | — | — |
| 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 | — | — |
None reported in Q4 2025.
Holders, Q4 2025
| Manager | Shares | Change |
|---|---|---|
| Invesco Ltd. 0.09% of their portfolio | 18.2m $970.7m | Reduced -1.4m |
| Blackstone Inc. 3.64% of their portfolio | 15.7m $838.2m | Added +1.7m |
| TORTOISE CAPITAL ADVISORS, L.L.C. 9.05% of their portfolio | 13.3m $710.9m | Reduced -200.6k |
| GOLDMAN SACHS GROUP INC 0.09% of their portfolio | 12.5m $665.4m | Reduced -629.2k |
| BANK OF AMERICA CORP /DE/ 0.03% of their portfolio | 8.5m $455.3m | Reduced -814.9k |
| KAYNE ANDERSON CAPITAL ADVISORS LP 8.76% of their portfolio | 7.2m $385.7m | Reduced -6.4k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.55% of their portfolio | 6.9m $368.7m | Reduced -151.6k |
| MORGAN STANLEY 0.02% of their portfolio | 5.8m $307.6m | Added +1.1m |
| CHICKASAW CAPITAL MANAGEMENT LLC 11.94% of their portfolio | 5.4m $289.8m | Reduced -181.9k |
| UBS Group AG 0.06% of their portfolio | 5.3m $283.1m | Added +38.3k |
| Energy Income Partners, LLC 5.12% of their portfolio | 5.3m $282.8m | Reduced -360.2k |
| Brave Warrior Advisors, LLC 5.59% of their portfolio | 4.5m $238.8m | Added +6.6k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 3.3m $175.4m | Reduced -6.0m |
| Brookfield Corp /ON/ 0.20% of their portfolio | 3.0m $158.0m | Added +134.9k |
| ING GROEP NV 0.93% of their portfolio | 2.9m $155.0m | Reduced -1.4m |
| CIBC Private Wealth Group LLC 0.25% of their portfolio | 2.7m $145.4m | Added +36.1k |
| Clearbridge Investments, LLC 0.10% of their portfolio | 2.3m $125.1m | Added +172.0k |
| MILLER HOWARD INVESTMENTS INC /NY 3.73% of their portfolio | 2.3m $123.6m | Added +57.2k |
| Fractal Investments LLC 15.29% of their portfolio | 2.1m $109.5m | Unchanged |
| EAGLE GLOBAL ADVISORS LLC 3.72% of their portfolio | 1.9m $100.6m | Reduced -52.5k |
| CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT 5.77% of their portfolio | 1.9m $100.5m | Added +150.0k |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO 1.11% of their portfolio | 1.8m $97.8m | Reduced -5.5k |
| FMR LLC 0.00% of their portfolio | 1.7m $89.1m | Added +3.1k |
| AlphaCore Capital LLC 1.93% of their portfolio | 1.6m $85.7m | Added +29.1k |
| STIFEL FINANCIAL CORP 0.06% of their portfolio | 1.3m $70.9m | Reduced -89.6k |
| Epoch Investment Partners, Inc. 0.35% of their portfolio | 1.2m $61.7m | Added +112.7k |
| Mariner, LLC 0.07% of their portfolio | 1.2m $61.6m | Added +36.4k |
| NEUBERGER BERMAN GROUP LLC 0.04% of their portfolio | 1.1m $60.0m | Added +29.1k |
| BNP PARIBAS FINANCIAL MARKETS 0.04% of their portfolio | 1.1m $59.0m | Added +44.1k |
| Progeny 3, Inc. 3.04% of their portfolio | 1.1m $56.5m | Reduced -23.6k |
| INFRASTRUCTURE CAPITAL ADVISORS, LLC 6.10% of their portfolio | 1.0m $55.4m | Reduced -100.3k |
| RAYMOND JAMES FINANCIAL INC 0.02% of their portfolio | 955.7k $51.0m | Added +7.8k |
| BARCLAYS PLC 0.02% of their portfolio | 915.7k $48.9m | Reduced -257.7k |
| COHEN & STEERS, INC. 0.08% of their portfolio | 880.6k $47.0m | Added +189.3k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 853.8k $45.6m | Reduced -76.4k |
| Corient Private Wealth LP 0.03% of their portfolio | 839.7k $44.6m | Added +558.4k |
| Allianz Asset Management GmbH 0.05% of their portfolio | 829.1k $44.3m | Reduced -82.4k |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 791.5k $42.2m | Added +46.4k |
| LONGFELLOW INVESTMENT MANAGEMENT CO LLC 9.23% of their portfolio | 766.5k $40.9m | Unchanged |
| Americana Partners, LLC 1.11% of their portfolio | 760.3k $40.6m | Added +211.7k |
| WELLS FARGO & COMPANY/MN 0.01% of their portfolio | 748.7k $40.0m | Added +11.8k |
| REAVES W H & CO INC 0.63% of their portfolio | 670.5k $35.8m | Unchanged |
| JENNISON ASSOCIATES LLC 0.02% of their portfolio | 670.3k $35.8m | Reduced -98.3k |
| APPALOOSA LP 0.49% of their portfolio | 627.5k $33.5m | Added +92.5k |
| Northside Capital Management, LLC 2.74% of their portfolio | 590.1k $31.5m | Added +13 |
| U.S. Capital Wealth Advisors, LLC 0.81% of their portfolio | 578.4k $30.9m | Added +412 |
| EXCHANGE TRADED CONCEPTS, LLC 0.25% of their portfolio | 558.7k $29.8m | Added +179.4k |
| Chicago Partners Investment Group LLC 0.65% of their portfolio | 479.6k $26.5m | Reduced -7.3k |
| LPL Financial LLC 0.01% of their portfolio | 478.9k $25.6m | Added +49.0k |
| CITIGROUP INC 0.02% of their portfolio | 463.9k $24.8m | Reduced -143.1k |
| ALPS ADVISORS INC 0.13% of their portfolio | 429.6k $22.9m | Reduced -26.0m |
| GOLDENTREE ASSET MANAGEMENT LP 1.23% of their portfolio | 424.9k $22.7m | Added +131.8k |
| Oxbow Advisors, LLC 1.90% of their portfolio | 405.2k $21.6m | Added +11.8k |
| Sovereign Investment Advisors, LLC 4.97% of their portfolio | 372.2k $19.9m | Reduced -1.7k |
| HighTower Advisors, LLC 0.02% of their portfolio | 366.7k $19.6m | Reduced -191.0k |
| Maryland State Retirement & Pension System 0.39% of their portfolio | 354.5k $18.9m | Added +5.0k |
| Bollard Group LLC 0.50% of their portfolio | 353.4k $18.9m | Reduced -53.9k |
| HRT FINANCIAL LP 0.07% of their portfolio | 339.0k $18.1m | Added +136.6k |
| Heronetta Management, L.P. 9.99% of their portfolio | 323.6k $17.3m | Reduced -32.4k |
| Texas Yale Capital Corp. 0.50% of their portfolio | 311.4k $16.6m | Added +11.6k |
| Jump Financial, LLC 0.20% of their portfolio | 300.8k $16.1m | Added +97.5k |
| Susquehanna Portfolio Strategies, LLC 0.23% of their portfolio | 282.8k $15.1m | Added +53.7k |
| Catalyst Capital Advisors LLC 0.30% of their portfolio | 275.0k $14.7m | Reduced -89.4k |
| WALNUT PRIVATE EQUITY PARTNERS, LLC 7.99% of their portfolio | 257.5k $13.7m | Unchanged |
| Private Capital Advisors, Inc. 1.40% of their portfolio | 256.8k $13.7m | Added +443 |
| TECTONIC ADVISORS LLC 0.71% of their portfolio | 252.7k $13.5m | Added +11.0k |
| Waverly Advisors, LLC 0.11% of their portfolio | 246.3k $13.1m | Added +151 |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 236.5k $12.6m | New |
| DEROY & DEVEREAUX PRIVATE INVESTMENT COUNSEL INC 0.59% of their portfolio | 227.5k $12.1m | Added +9.1k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 224.3k $12.0m | Reduced -18.1k |
| OPAL CAPITAL LLC 2.93% of their portfolio | 219.8k $11.7m | First filing |
| TrueMark Investments, LLC 2.22% of their portfolio | 218.0k $11.6m | Added +15.6k |
| &PARTNERS 0.06% of their portfolio | 217.0k $11.6m | Added +102.4k |
| Adams Asset Advisors, LLC 1.47% of their portfolio | 209.6k $11.2m | Unchanged |
| RR Advisors, LLC 3.49% of their portfolio | 209.4k $11.2m | Reduced -289.6k |
| Cetera Investment Advisers 0.01% of their portfolio | 200.5k $10.7m | Reduced -23.5k |
| Nuveen, LLC 0.00% of their portfolio | 197.4k $10.5m | Reduced -26.4k |
| Sequoia Financial Advisors, LLC 0.06% of their portfolio | 195.0k $10.4m | Reduced -1.6k |
| EVERGREEN CAPITAL MANAGEMENT LLC 0.23% of their portfolio | 189.5k $10.1m | Added +2.5k |
| Rockefeller Capital Management L.P. 0.02% of their portfolio | 189.1k $10.1m | Reduced -663 |
| AVENIR CORP 1.08% of their portfolio | 186.9k $10.0m | Unchanged |
| HENNESSY ADVISORS INC 0.33% of their portfolio | 176.5k $9.4m | Reduced -3.0k |
| GLENMEDE TRUST CO NA 0.04% of their portfolio | 175.8k $9.4m | First filing |
| UNITED CAPITAL FINANCIAL ADVISORS, LLC 0.06% of their portfolio | 172.5k $9.2m | Added +166.4k |
| Parkwood LLC 0.77% of their portfolio | 170.0k $9.1m | Added +3.2k |
| Cambridge Investment Research Advisors, Inc. 0.02% of their portfolio | 159.7k $8.5m | Added +75.0k |
| Advisors Asset Management, Inc. 0.14% of their portfolio | 157.9k $8.4m | Added +8.6k |
| COMMONWEALTH EQUITY SERVICES, LLC 0.01% of their portfolio | 157.2k $8.4m | Added +34.8k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 156.2k $8.3m | Reduced -37.3k |
| Advisors Capital Management, LLC 0.10% of their portfolio | 154.3k $8.2m | Added +1.3k |
| Blueprint Financial Advisors LLC 1.25% of their portfolio | 153.0k $8.2m | Reduced -4.9k |
| Blueprint Investment Partners LLC 0.86% of their portfolio | 151.0k $8.1m | Reduced -4.9k |
| OSAIC HOLDINGS, INC. 0.01% of their portfolio | 150.7k $8.0m | Added +18.6k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 148.0k $7.9m | Reduced -192.1k |
| Turtle Creek Wealth Advisors, LLC 0.61% of their portfolio | 146.1k $7.8m | Added +2.6k |
| Gilman Hill Asset Management, LLC 1.20% of their portfolio | 142.8k $7.6m | Added +2.5k |
| NORDEN GROUP LLC 0.74% of their portfolio | 142.3k $7.6m | New |
| BlackRock, Inc. 0.00% of their portfolio | 141.6k $7.6m | Reduced -442.0k |
| STEPHENS INC /AR/ 0.09% of their portfolio | 137.7k $7.3m | Added +7.4k |
| OPPENHEIMER & CO INC 0.10% of their portfolio | 136.2k $7.3m | Added +107.8k |