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 |
|---|---|---|---|---|---|
| Mountain Hill Investment Partners Corp. | 2 | $122 | 0.00% | 00.0% | Unchanged |
| DHJJ Financial Advisors, Ltd. | 10 | $571 | 0.00% | 00.0% | Unchanged |
| Cedar Mountain Advisors, LLC | 11 | $628 | 0.00% | +11 | New |
| Gunpowder Capital Management, LLC dba Oliver Wealth Management | 14 | $799 | 0.00% | 00.0% | Unchanged |
| Abound Wealth Management | 16 | $933 | 0.00% | 00.0% | Unchanged |
| Investors Research Corp | 20 | $1.14K | 0.00% | 00.0% | Unchanged |
| TD Private Client Wealth LLC | 23 | $1.31K | 0.00% | 00.0% | Unchanged |
| Plante Moran Financial Advisors, LLC | 26 | $1.48K | 0.00% | 00.0% | Unchanged |
| Penserra Capital Management LLC | 63 | $3.00K | 0.00% | 00.0% | Unchanged |
| Rialto Wealth Management, LLC | 55 | $3.14K | 0.00% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 69 | $3.94K | 0.00% | +69 | New |
| Center for Financial Planning, Inc. | 85 | $4.85K | 0.00% | 00.0% | Unchanged |
| Kozak & Associates, Inc. | 96 | $5.36K | 0.00% | +2+2.1% | Added |
| Grove Bank & Trust | 100 | $5.71K | 0.00% | 00.0% | Unchanged |
| Measured Wealth Private Client Group, LLC | 100 | $5.71K | 0.00% | 00.0% | Unchanged |
| Bullseye Investment Management, LLC | 100 | $5.71K | 0.00% | 00.0% | Unchanged |
| Evolution Wealth Management Inc. | 100 | $5.71K | 0.00% | +100 | New |
| JPL Wealth Management, LLC | 100 | $5.71K | 0.00% | +100 | New |
| Costello Asset Management, INC | 104 | $5.93K | 0.00% | 00.0% | Unchanged |
| Signature Resources Capital Management, LLC | 108 | $6.16K | 0.00% | +108 | New |
| Strengthening Families & Communities, LLC | 126 | $7.19K | 0.00% | 00.0% | Unchanged |
| Westside Investment Management, Inc. | 130 | $7.27K | 0.00% | +130 | New |
| Vision Financial Markets LLC | 133 | $7.56K | 0.01% | +3+2.3% | Added |
| Pacific Center for Financial Services | 149 | $8.50K | 0.00% | +149 | New |
| Atlantic Union Bankshares Corp | 194 | $11.1K | 0.00% | 00.0% | Unchanged |
| Chilton Capital Management LLC | 200 | $11.4K | 0.00% | −450−69.2% | Reduced |
| Bravera Wealth | 200 | $11.4K | 0.01% | −27−11.9% | Reduced |
| Country Trust Bank | 200 | $11.4K | 0.00% | 00.0% | Unchanged |
| HHM Wealth Advisors, LLC | 200 | $11.4K | 0.00% | 00.0% | Unchanged |
| Financial Network Wealth Advisors LLC | 210 | $12.0K | 0.01% | +1+0.5% | Added |
| Signature Equity Partners, LLC | 215 | $12.3K | 0.01% | −766−78.1% | Reduced |
| Curio Wealth, LLC | 263 | $15.0K | 0.01% | 00.0% | Unchanged |
| Sunbelt Securities, Inc. | 288 | $16.4K | 0.00% | +4+1.4% | Added |
| Key Financial Inc | 300 | $17.1K | 0.00% | 00.0% | Unchanged |
| C M Bidwell & Associates Ltd | 326 | $18.6K | 0.01% | 00.0% | Unchanged |
| Twin Peaks Wealth Advisors, LLC | 332 | $18.9K | 0.00% | +332 | New |
| Ares Financial Consulting, LLC | 341 | $19.1K | 0.01% | 00.0% | Unchanged |
| Archer Investment Corp | 354 | $20.2K | 0.00% | +6+1.7% | Added |
| Pacifica Partners Inc. | 400 | $22.8K | 0.01% | 00.0% | Unchanged |
| Elequin Capital LP | 417 | $23.8K | 0.00% | +417 | New |
| Ramirez Asset Management, Inc. | 450 | $25.7K | 0.00% | 00.0% | Unchanged |
| Private Wealth Asset Management, LLC | 500 | $28.5K | 0.00% | 00.0% | Unchanged |
| PlanVest Financial, Inc | 524 | $29.9K | 0.02% | +524 | New |
| EverSource Wealth Advisors, LLC | 528 | $30.1K | 0.00% | 00.0% | Unchanged |
| Assetmark, Inc | 559 | $31.9K | 0.00% | +251+81.5% | Added |
| Caldwell Trust Co | 635 | $36.2K | 0.00% | 00.0% | Unchanged |
| Wolff Wiese Magana LLC | 659 | $37.6K | 0.02% | +342+107.9% | Added |
| Tanglewood Legacy Advisors, LLC | 696 | $39.7K | 0.01% | 00.0% | Unchanged |
| Clear Investment Research, LLC | 700 | $39.9K | 0.06% | +700 | New |
| VSM Wealth Advisory, LLC | 712 | $40.6K | 0.01% | +17+2.4% | Added |
| Trust Co of Toledo NA | 750 | $42.8K | 0.00% | 00.0% | Unchanged |
| Root Financial Partners, LLC | 778 | $44.4K | 0.00% | 00.0% | Unchanged |
| Wiser Advisor Group LLC | 786 | $44.8K | 0.05% | +15+1.9% | Added |
| Axiom Investment Management LLC | 800 | $45.7K | 0.03% | +800 | New |
| Prosperity Bancshares Inc | 812 | $46.3K | 0.04% | 00.0% | Unchanged |
| Quent Capital, LLC | 847 | $48.3K | 0.00% | 00.0% | Unchanged |
| Hickory Point Bank & Trust | 900 | $51.4K | 0.03% | +900 | New |
| Groesbeck Investment Management Corp | 910 | $52.0K | 0.10% | 00.0% | Unchanged |
| Vision Retirement, LLC | 998 | $57.0K | 0.02% | 00.0% | Unchanged |
| Harbor Investment Advisory, LLC | 1,000 | $57.1K | 0.00% | 00.0% | Unchanged |
| WFA of San Diego, LLC | 1,000 | $57.1K | 0.05% | 00.0% | Unchanged |
| Atlantic Private Wealth, LLC | 1,000 | $57.1K | 0.04% | 00.0% | Unchanged |
| Fortitude Family Office, LLC | 1,009 | $57.6K | 0.01% | 00.0% | Unchanged |
| 1 North Wealth Services LLC | 1,060 | $60.5K | 0.02% | +20+1.9% | Added |
| Mather Group, LLC. | 1,064 | $60.7K | 0.00% | +1,064 | New |
| Activest Wealth Management | 1,065 | $60.8K | 0.01% | +20+1.9% | Added |
| Geneos Wealth Management Inc. | 1,135 | $64.8K | 0.00% | 00.0% | Unchanged |
| First Horizon Corp | 1,225 | $69.9K | 0.00% | −90−6.8% | Reduced |
| Trust Co | 1,235 | $70.5K | 0.01% | 00.0% | Unchanged |
| Aventura Private Wealth, LLC | 1,243 | $70.9K | 0.03% | 00.0% | Unchanged |
| Creative Financial Designs Inc | 1,260 | $71.9K | 0.00% | 00.0% | Unchanged |
| McIlrath & Eck, LLC | 1,298 | $74.1K | 0.01% | −79−5.7% | Reduced |
| MCF Advisors LLC | 1,316 | $75.1K | 0.00% | +1,316 | New |
| Avalon Trust Co | 1,387 | $79.2K | 0.01% | 00.0% | Unchanged |
| Central Trust Co | 1,457 | $83.2K | 0.00% | 00.0% | Unchanged |
| Citizens National Bank Trust Department | 1,465 | $83.6K | 0.01% | 00.0% | Unchanged |
| Fifth Third Bancorp | 1,499 | $85.5K | 0.00% | 00.0% | Unchanged |
| Ronald Blue Trust, Inc. | 1,535 | $87.6K | 0.00% | −25−1.6% | Reduced |
| Global Assets Advisory, LLC | 1,538 | $87.7K | 0.03% | +1,538 | New |
| Heritage Wealth Advisors | 1,559 | $89.0K | 0.00% | +107+7.4% | Added |
| HM Payson & Co | 1,563 | $89.2K | 0.00% | 00.0% | Unchanged |
| CWM Advisors, LLC | 1,624 | $92.7K | 0.01% | −23,658−93.6% | Reduced |
| Tiaa-Cref Individual & Institutional Services, LLC | 1,649 | $94.1K | 0.00% | +1,649 | New |
| Russell Investments Group, Ltd. | 1,655 | $94.4K | 0.00% | +31+1.9% | Added |
| SRS Capital Advisors, Inc. | 1,730 | $98.7K | 0.00% | −2,399−58.1% | Reduced |
| Anfield Capital Management, LLC | 1,801 | $102.8K | 0.03% | 00.0% | Unchanged |
| Private Trust Co NA | 2,000 | $114.1K | 0.01% | 00.0% | Unchanged |
| Clear Street Markets LLC | 2,100 | $119.8K | 0.06% | −32,200−93.9% | Reduced |
| Proffitt & Goodson Inc | 2,148 | $122.6K | 0.02% | −70−3.2% | Reduced |
| Tower Research Capital LLC (TRC) | 2,154 | $122.9K | 0.00% | +2,063+2,267.0% | Added |
| Ritter Daniher Financial Advisory LLC | 2,173 | $124.0K | 0.02% | +40+1.9% | Added |
| Crewe Advisors LLC | 2,211 | $126.2K | 0.01% | 00.0% | Unchanged |
| Keating Financial Advisory Services, Inc. | 2,363 | $134.9K | 0.02% | +2,363 | New |
| Cary Street Partner Investment Advisory LLC | 2,400 | $137.0K | 0.03% | +600+33.3% | Added |
| Hilton Head Capital Partners, LLC | 2,442 | $139.4K | 0.08% | −1,616−39.8% | Reduced |
| Boyd Watterson Asset Management LLC | 2,465 | $140.7K | 0.04% | 00.0% | Unchanged |
| Acumen Wealth Advisors, LLC | 2,603 | $148.6K | 0.04% | 00.0% | Unchanged |
| Smithfield Trust Co | 2,725 | $155.0K | 0.01% | 00.0% | Unchanged |
| Capital Advisors, Ltd. LLC | 2,939 | $168.0K | 0.02% | +54+1.9% | Added |
| Federation des caisses Desjardins du Quebec | 3,068 | $175.1K | 0.00% | −2,590−45.8% | Reduced |