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 ($15.6m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $49.96. Options: 10 managers hold calls ($144.2m notional), 11 hold puts ($96.3m).
Trends to Q3 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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2023 | 214 | 116 |
| 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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q4 2024 | $282.9m | $112.4m | 0.40 |
| Q1 2025 | $280.0m | $76.8m | 0.27 |
| Q2 2025 | $167.7m | $74.9m | 0.45 |
| Q3 2025 | $144.2m | $96.3m | 0.67 |
Biggest buyers
| JPMORGAN CHASE & CO | Added | +4.4m |
| NATIXIS | Added | +570.0k |
| TORTOISE CAPITAL ADVISORS, L.L.C. | Added | +329.6k |
| ALPS ADVISORS INC | Added | +325.5k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | +304.1k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | Added | +300.3k |
| Corient Private Wealth LP | Added | +242.3k |
| FMR LLC | Added | +242.0k |
| Brave Warrior Advisors, LLC | Added | +192.4k |
| Blueprint Financial Advisors LLC | New | +157.9k |
Biggest sellers
| Blackstone Inc. | Reduced | -2.9m |
| UBS Group AG | Reduced | -1.5m |
| VICTORY CAPITAL MANAGEMENT INC | Reduced | -1.2m |
| GOLDMAN SACHS GROUP INC | Reduced | -1.0m |
| Brookfield Corp /ON/ | Reduced | -931.6k |
| ROYAL BANK OF CANADA | Reduced | -863.3k |
| MORGAN STANLEY | Reduced | -586.0k |
| BANK OF AMERICA CORP /DE/ | Reduced | -527.7k |
| KAYNE ANDERSON CAPITAL ADVISORS LP | Reduced | -385.3k |
| Merewether Investment Management, LP | Sold out | -329.8k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $34.5m691.6k shares |
| GROUP ONE TRADING LLC | Added | $30.0m601.1k shares |
| JANE STREET GROUP, LLC | Reduced | $24.1m482.5k shares |
| CITADEL ADVISORS LLC | Added | $23.6m471.7k shares |
| SIMPLEX TRADING, LLC | Added | $19.8m395.7k shares |
| WOLVERINE TRADING, LLC | Added | $6.5m129.5k shares |
| PEAK6 LLC | Added | $2.8m56.6k shares |
| IMC-Chicago, LLC | Reduced | $2.6m51.1k shares |
| Squarepoint Ops LLC | Reduced | $304.7k6.1k shares |
| LANARK FINANCIAL, INC. | New | $2604 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $46.7m935.4k shares |
| JANE STREET GROUP, LLC | Added | $13.6m271.8k shares |
| CITADEL ADVISORS LLC | Reduced | $12.4m248.8k shares |
| WOLVERINE TRADING, LLC | Added | $6.2m123.7k shares |
| IMC-Chicago, LLC | Added | $6.0m120.5k shares |
| SIMPLEX TRADING, LLC | Added | $5.7m114.3k shares |
| GROUP ONE TRADING LLC | Reduced | $2.1m42.0k shares |
| Squarepoint Ops LLC | Unchanged | $1.5m30.1k shares |
| SUMMIT SECURITIES GROUP LLC | Reduced | $1.1m22.5k shares |
| VELA Investment Management, LLC | Unchanged | $954.0k19.1k 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 Q3 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 |
|---|---|---|---|---|---|
| Q4 2023 | 0 | — | 0 | — | — |
| 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 | — | — |
None reported in Q3 2025.
Holders, Q3 2025
| Manager | Shares | Change |
|---|---|---|
| ALPS ADVISORS INC 7.35% of their portfolio | 26.4m $1.3bn | Added +325.5k |
| Invesco Ltd. 0.15% of their portfolio | 19.6m $977.1m | Added +143.4k |
| Blackstone Inc. 2.99% of their portfolio | 14.0m $700.2m | Reduced -2.9m |
| TORTOISE CAPITAL ADVISORS, L.L.C. 8.71% of their portfolio | 13.5m $675.3m | Added +329.6k |
| GOLDMAN SACHS GROUP INC 0.09% of their portfolio | 13.1m $654.2m | Reduced -1.0m |
| BANK OF AMERICA CORP /DE/ 0.03% of their portfolio | 9.3m $466.8m | Reduced -527.7k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 9.3m $465.4m | Added +4.4m |
| KAYNE ANDERSON CAPITAL ADVISORS LP 7.97% of their portfolio | 7.2m $361.3m | Reduced -385.3k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.56% of their portfolio | 7.1m $352.6m | Added +300.3k |
| Energy Income Partners, LLC 5.45% of their portfolio | 5.7m $282.7m | Added +118.1k |
| CHICKASAW CAPITAL MANAGEMENT LLC 11.46% of their portfolio | 5.6m $280.3m | Added +120.2k |
| UBS Group AG 0.05% of their portfolio | 5.3m $263.1m | Reduced -1.5m |
| MORGAN STANLEY 0.01% of their portfolio | 4.7m $232.7m | Reduced -586.0k |
| Brave Warrior Advisors, LLC 5.18% of their portfolio | 4.5m $223.2m | Added +192.4k |
| ING GROEP NV 1.16% of their portfolio | 4.3m $215.0m | Reduced -258.2k |
| Brookfield Corp /ON/ 0.16% of their portfolio | 2.8m $141.1m | Reduced -931.6k |
| CIBC Private Wealth Group LLC 0.23% of their portfolio | 2.7m $134.3m | Reduced -36.0k |
| MILLER HOWARD INVESTMENTS INC /NY 3.44% of their portfolio | 2.3m $112.8m | Added +18.5k |
| WESTWOOD HOLDINGS GROUP INC 0.80% of their portfolio | 2.2m $111.8m | Added +32.9k |
| Clearbridge Investments, LLC 0.08% of their portfolio | 2.2m $108.5m | Added +21.6k |
| Fractal Investments LLC 14.79% of their portfolio | 2.1m $102.5m | Reduced -205.2k |
| EAGLE GLOBAL ADVISORS LLC 3.71% of their portfolio | 1.9m $96.8m | Added +17.5k |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO 1.04% of their portfolio | 1.8m $91.8m | Added +4.7k |
| CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT 4.92% of their portfolio | 1.7m $86.6m | Added +18.0k |
| FMR LLC 0.00% of their portfolio | 1.7m $83.2m | Added +242.0k |
| AlphaCore Capital LLC 2.66% of their portfolio | 1.6m $78.8m | Added +6.1k |
| STIFEL FINANCIAL CORP 0.06% of their portfolio | 1.4m $70.8m | Added +53.7k |
| BARCLAYS PLC 0.02% of their portfolio | 1.2m $58.6m | Added +31.0k |
| INFRASTRUCTURE CAPITAL ADVISORS, LLC 7.15% of their portfolio | 1.1m $57.8m | Reduced -66.8k |
| Mariner, LLC 0.07% of their portfolio | 1.1m $55.8m | Reduced -417 |
| NEUBERGER BERMAN GROUP LLC 0.04% of their portfolio | 1.1m $54.7m | Added +47.0k |
| Progeny 3, Inc. 2.79% of their portfolio | 1.1m $54.1m | Added +22.1k |
| BNP PARIBAS FINANCIAL MARKETS 0.04% of their portfolio | 1.1m $53.0m | Added +118.9k |
| Epoch Investment Partners, Inc. 0.29% of their portfolio | 1.0m $52.1m | Reduced -74.0k |
| NATIXIS 0.26% of their portfolio | 973.8k $48.6m | Added +570.0k |
| RAYMOND JAMES FINANCIAL INC 0.02% of their portfolio | 947.9k $47.3m | Added +39.0k |
| DEUTSCHE BANK AG\ 0.02% of their portfolio | 930.2k $46.5m | Reduced -52.8k |
| Allianz Asset Management GmbH 0.06% of their portfolio | 911.5k $45.5m | Reduced -103.8k |
| JENNISON ASSOCIATES LLC 0.02% of their portfolio | 768.6k $38.4m | Unchanged |
| LONGFELLOW INVESTMENT MANAGEMENT CO LLC 9.08% of their portfolio | 766.5k $38.3m | Unchanged |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 745.1k $37.2m | Reduced -863.3k |
| WELLS FARGO & COMPANY/MN 0.01% of their portfolio | 736.9k $36.8m | Reduced -12.0k |
| COHEN & STEERS, INC. 0.06% of their portfolio | 691.3k $34.5m | Unchanged |
| REAVES W H & CO INC 0.60% of their portfolio | 670.5k $33.5m | Unchanged |
| CITIGROUP INC 0.02% of their portfolio | 606.9k $30.3m | Added +140.7k |
| Northside Capital Management, LLC 2.69% of their portfolio | 590.1k $29.5m | Reduced -2.0k |
| BlackRock, Inc. 0.00% of their portfolio | 583.6k $29.2m | Reduced -2.0k |
| U.S. Capital Wealth Advisors, LLC 0.78% of their portfolio | 578.0k $28.9m | Added +84.2k |
| HighTower Advisors, LLC 0.03% of their portfolio | 557.7k $27.9m | Reduced -80.2k |
| Americana Partners, LLC 0.82% of their portfolio | 548.6k $27.4m | Added +28.6k |
| APPALOOSA LP 0.36% of their portfolio | 535.0k $26.7m | Reduced -43.5k |
| RR Advisors, LLC 5.91% of their portfolio | 499.0k $24.9m | Unchanged |
| Chicago Partners Investment Group LLC 0.65% of their portfolio | 486.9k $24.7m | Added +7.3k |
| LPL Financial LLC 0.01% of their portfolio | 429.9k $21.5m | Added +26.3k |
| Bollard Group LLC 0.50% of their portfolio | 407.3k $20.3m | Added +26.3k |
| Oxbow Advisors, LLC 1.83% of their portfolio | 393.4k $19.7m | Reduced -9.1k |
| EXCHANGE TRADED CONCEPTS, LLC 0.18% of their portfolio | 379.3k $18.9m | Reduced -23.4k |
| Sovereign Investment Advisors, LLC 5.10% of their portfolio | 374.0k $18.7m | Unchanged |
| Catalyst Capital Advisors LLC 0.37% of their portfolio | 364.4k $18.2m | Reduced -95 |
| Heronetta Management, L.P. 9.74% of their portfolio | 356.1k $17.8m | Unchanged |
| Distillate Capital Partners LLC 0.92% of their portfolio | 353.7k $17.7m | Reduced -4.9k |
| Maryland State Retirement & Pension System 0.37% of their portfolio | 349.5k $17.5m | Added +9.1k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.02% of their portfolio | 340.2k $17.0m | Added +304.1k |
| Texas Yale Capital Corp. 0.47% of their portfolio | 299.8k $15.0m | Added +24.4k |
| GOLDENTREE ASSET MANAGEMENT LP 1.21% of their portfolio | 293.1k $14.6m | Added +40.6k |
| Corient Private Wealth LP 0.02% of their portfolio | 281.3k $13.8m | Added +242.3k |
| WALNUT PRIVATE EQUITY PARTNERS, LLC 7.28% of their portfolio | 257.5k $12.9m | Added +15.2k |
| Private Capital Advisors, Inc. 1.42% of their portfolio | 256.3k $12.8m | Unchanged |
| Waverly Advisors, LLC 0.12% of their portfolio | 246.1k $12.3m | Reduced -7.5k |
| VICTORY CAPITAL MANAGEMENT INC 0.01% of their portfolio | 244.6k $12.2m | Reduced -1.2m |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 242.4k $12.1m | Reduced -13.6k |
| TECTONIC ADVISORS LLC 0.66% of their portfolio | 241.7k $12.1m | Added +17.0k |
| Susquehanna Portfolio Strategies, LLC 0.18% of their portfolio | 229.0k $11.4m | Reduced -138.0k |
| Cetera Investment Advisers 0.01% of their portfolio | 224.1k $11.2m | Added +36.4k |
| Nuveen, LLC 0.00% of their portfolio | 223.8k $11.2m | Reduced -1.8k |
| DEROY & DEVEREAUX PRIVATE INVESTMENT COUNSEL INC 0.54% of their portfolio | 218.4k $10.9m | Added +743 |
| Adams Asset Advisors, LLC 1.35% of their portfolio | 209.6k $10.5m | Unchanged |
| Jump Financial, LLC 0.13% of their portfolio | 203.3k $10.2m | Reduced -65.8k |
| TrueMark Investments, LLC 1.76% of their portfolio | 202.5k $10.1m | Added +51.8k |
| HRT FINANCIAL LP 0.05% of their portfolio | 202.4k $10.1m | Reduced -12.8k |
| Militia Capital Partners, LP 1.58% of their portfolio | 201.0k $10.0m | Added +55.0k |
| Sequoia Financial Advisors, LLC 0.06% of their portfolio | 196.6k $9.8m | Added +3.4k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 193.5k $9.7m | Added +86.6k |
| Glenmede Investment Management, LP 0.05% of their portfolio | 192.0k $9.6m | Added +6.5k |
| Rockefeller Capital Management L.P. 0.02% of their portfolio | 189.8k $9.5m | Reduced -178.2k |
| EVERGREEN CAPITAL MANAGEMENT LLC 0.22% of their portfolio | 186.9k $9.3m | Reduced -9.3k |
| AVENIR CORP 0.97% of their portfolio | 186.9k $9.3m | Added +3.9k |
| HENNESSY ADVISORS INC 0.31% of their portfolio | 179.5k $9.0m | Unchanged |
| Parkwood LLC 0.81% of their portfolio | 166.8k $8.3m | Added +6.9k |
| Blueprint Financial Advisors LLC 1.70% of their portfolio | 157.9k $7.9m | New |
| Blueprint Investment Partners LLC 1.09% of their portfolio | 155.9k $7.8m | Added +5.0k |
| Advisors Capital Management, LLC 0.09% of their portfolio | 153.0k $7.6m | Added +4.6k |
| Advisors Asset Management, Inc. 0.13% of their portfolio | 149.4k $7.5m | Added +20.8k |
| Turtle Creek Wealth Advisors, LLC 0.64% of their portfolio | 143.5k $7.2m | Added +88.3k |
| Gilman Hill Asset Management, LLC 1.10% of their portfolio | 140.3k $7.0m | Added +14.7k |
| Granby Capital Management, LLC 3.71% of their portfolio | 140.0k $7.0m | Unchanged |
| Kercheville Advisors, LLC 2.03% of their portfolio | 134.8k $6.7m | Reduced -108 |
| OSAIC HOLDINGS, INC. 0.01% of their portfolio | 132.2k $6.7m | Reduced -8.2k |
| Evercore Wealth Management, LLC 0.10% of their portfolio | 132.1k $6.6m | Unchanged |
| STEPHENS INC /AR/ 0.08% of their portfolio | 130.3k $6.5m | Added +97.6k |