MPLXNYSEPipe Lines (No Natural Gas)Fiscal year ends December 31
MPLX LP
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 4, 2026
$58.18+0.02 (+0.03%)
Close on Oct 19, 2026
- Market cap
- –
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
19.4%
196M of 1.01B shares
Institutional holders
638
59 new, 57 sold out
Net institutional buying
-6M
In Q2 2026
Insider trades, 12 months
0 buys · 0 sales
Open-market trades only
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Marathon Petroleum Corporation | 647,415,452 | 63.30% | 13D (active) amendment | May 8, 2024 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of MPLX | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Alps Advisors Inc | 28,601,592 | 2.82% | $1.61B | +1,530,630 | 7.55% |
| Invesco Ltd. | 18,273,448 | 1.80% | $1.03B | +6,842 | 0.08% |
| Blackstone Inc. | 12,956,943 | 1.28% | $729.86M | −2,393,740 | 2.22% |
| Goldman Sachs Group Inc | 11,329,340 | 1.12% | $638.18M | −1,178,199 | 0.06% |
| Tortoise Capital Advisors, L.L.C. | 10,500,469 | 1.04% | $591.49M | −2,760,115 | 6.01% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 8,011,582 | 0.79% | $451.29M | +692,332 | 0.54% |
| Kayne Anderson Capital Advisors LP | 5,862,925 | 0.58% | $330.26M | −963,642 | 6.48% |
| Energy Income Partners, LLC | 5,380,295 | 0.53% | $303.07M | +222,817 | 4.77% |
| Morgan Stanley | 5,275,829 | 0.52% | $297.19M | +311,630 | 0.02% |
| UBS Group AG | 5,259,274 | 0.52% | $296.25M | +25,762 | 0.04% |
| Chickasaw Capital Management LLC | 5,211,734 | 0.51% | $293.58K | −10,953 | 10.56% |
| FMR LLC | 3,920,887 | 0.39% | $220.86M | +560,024 | 0.01% |
| JPMorgan Chase & Co | 3,428,352 | 0.34% | $192.74M | −705,314 | 0.01% |
| Brave Warrior Advisors, LLC | 3,180,534 | 0.31% | $179.16M | −72,990 | 3.90% |
| CIBC Bancorp USA Inc. | 2,988,109 | 0.29% | $168.32M | +346,005 | 0.20% |
| Bank Of Montreal /Can/ | 2,549,532 | 0.25% | $143.62M | −1,477,895 | 0.05% |
| Clearbridge Investments, LLC | 2,343,689 | 0.23% | $132.02M | – | 0.11% |
| Miller Howard Investments Inc /Ny | 2,325,809 | 0.23% | $131.01M | +86,115 | 3.48% |
| Westwood Holdings Group Inc | 2,113,845 | 0.21% | $119.07M | −123,011 | 0.90% |
| Bank Of America Corp /De/ | 2,070,457 | 0.20% | $116.63M | −502,819 | 0.01% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 638 | 196M | 19.4% | 59 / 244 | 149 / 57 | 9M | 15M |
| Q1 2026 | 646 | 203M | 20.0% | 76 / 215 | 174 / 57 | 42M | 16M |
| Q4 2025 | 633 | 179M | 17.6% | 98 / 230 | 135 / 32 | 8M | 44M |
| Q3 2025 | 577 | 215M | 21.2% | 54 / 223 | 121 / 45 | 10M | 13M |
| Q2 2025 | 576 | 218M | 21.5% | 64 / 214 | 133 / 49 | 11M | 18M |
| Q1 2025 | 569 | 226M | 22.3% | 76 / 203 | 130 / 33 | 12M | 9M |
| Q4 2024 | 535 | 222M | 21.9% | 67 / 201 | 123 / 25 | 13M | 27M |
| Q3 2024 | 501 | 238M | 23.4% | 48 / 202 | 99 / 29 | 8M | 16M |
| Q2 2024 | 490 | 246M | 24.3% | 45 / 197 | 99 / 26 | 28M | 31M |
| Q1 2024 | 478 | 249M | 24.6% | 72 / 157 | 129 / 33 | 27M | 12M |
| Q4 2023 | 442 | 235M | 23.2% | 74 / 159 | 94 / 23 | 28M | 23M |
| Q3 2023 | 397 | 230M | 22.7% | 54 / 132 | 93 / 22 | 23M | 20M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of MPLX | Value | % of fund | As of |
|---|---|---|---|---|---|
| Alerian MLP ETF | 26,860,887 | 2.65% | $1.47B | 12.09% | May 31, 2026 |
| Invesco SteelPath MLP Income Fund | 11,304,596 | 1.12% | $617.80M | 13.87% | May 31, 2026 |
| Kayne Anderson Energy Infrastructure Fund, Inc | 4,826,910 | 0.48% | $263.79M | 9.93% | May 31, 2026 |
| Global X MLP ETF | 4,785,661 | 0.47% | $261.54M | 12.44% | May 31, 2026 |
| Goldman Sachs MLP Energy Infrastructure Fund | 3,835,290 | 0.38% | $209.60M | 11.68% | May 31, 2026 |
| Tortoise Energy Infrastructure Total Return Fund | 3,565,794 | 0.35% | $194.87M | 5.17% | May 31, 2026 |
| First Trust North American Energy Infrastructure Fund | 3,011,672 | 0.30% | $176.03M | 4.26% | Jul 31, 2026 |
| Invesco SteelPath MLP Select 40 Fund | 2,920,428 | 0.29% | $159.60M | 6.84% | May 31, 2026 |
| Global X MLP and Energy Infrastructure ETF | 2,739,580 | 0.27% | $149.72M | 4.23% | May 31, 2026 |
| Fidelity Dividend Growth Fund | 2,600,900 | 0.26% | $152.02M | 1.28% | Jul 31, 2026 |
| Invesco SteelPath MLP Alpha Fund | 2,564,267 | 0.25% | $140.14M | 12.31% | May 31, 2026 |
| MainGate MLP Fund | 1,950,000 | 0.19% | $106.57M | 12.72% | May 31, 2026 |
| Fidelity Capital Appreciation Fund | 1,389,454 | 0.14% | $81.21M | 1.04% | Jul 31, 2026 |
| NYLI Cushing MLP Premier Fund | 1,110,000 | 0.11% | $60.66M | 5.08% | May 31, 2026 |
| Invesco SteelPath MLP Alpha Plus Fund | 1,041,861 | 0.10% | $56.94M | 17.34% | May 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Carl Kristopher Hagedorn | Exec VP & Chief Fin Ofc, Director | 20,409 | 0.00% | Mar 3, 2026 |
| Maryann T. Mannen | Chairman, President & CEO, Director | 165,459 | 0.02% | Mar 3, 2026 |
| Michael J. Hennigan | Executive Chairman, Director | 359,137 | 0.04% | Dec 16, 2025 |
| Erin M. Brzezinski | VP and Controller | 4,733 | 0.00% | Apr 2, 2026 |
| Molly R. Benson | Chief Legal Ofc & Corp Sec | 48,352 | 0.00% | Mar 3, 2026 |
| Shawn M. Lyon | Senior VP, Log. & Storage | 28,289 | 0.00% | Mar 3, 2026 |
| Gregory Scott Floerke | Exec. VP and COO | 97,234 | 0.01% | Mar 3, 2026 |
| Rebecca L. Iten | VP and Controller | 282 | 0.00% | Mar 3, 2025 |
| J. Michael Stice | Director | 59,113 | 0.01% | Aug 18, 2026 |
| Christine S. Breves | Director | 15,038 | 0.00% | Aug 18, 2026 |
| Ray N. Walker JR | Director | 4,609 | 0.00% | Aug 18, 2026 |
| John P. Surma | Director | 102,948 | 0.01% | Aug 18, 2026 |
| Christopher A. Helms | Director | 86,208 | 0.01% | Aug 18, 2026 |
| Garry L. Peiffer | Director | 137,810 | 0.01% | Aug 18, 2026 |
| Frank M. Semple | Director | 556,770 | 0.05% | Aug 18, 2026 |
| Maria A. Khoury | Director | 8,451 | 0.00% | Mar 3, 2026 |
| John J. Quaid | Director | 56,052 | 0.01% | Mar 4, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| J. Michael Stice Director | Aug 14, 2026 | Award | +982.72 | – | – | 58,413 |
| Frank M. Semple Director | Aug 14, 2026 | Award | +1,072.72 | – | – | 63,476 |
| Ray N. Walker JR Director | Aug 14, 2026 | Award | +81.94 | – | – | 4,609 |
| Garry L. Peiffer Director | Aug 14, 2026 | Award | +1,232.17 | – | – | 69,313 |
| Christopher A. Helms Director | Aug 14, 2026 | Award | +1,336.96 | – | – | 86,208 |
| Christine S. Breves Director | Aug 14, 2026 | Award | +218.82 | – | – | 15,038 |
| John P. Surma Director | Aug 14, 2026 | Award | +1,563.43 | – | – | 95,448 |
| Christopher A. Helms Director | May 15, 2026 | Award | +1,415.12 | – | – | 84,413 |
| Ray N. Walker JR Director | May 15, 2026 | Award | +78.44 | – | – | 4,069 |
| Garry L. Peiffer Director | May 15, 2026 | Award | +1,303.5 | – | – | 67,623 |
| Frank M. Semple Director | May 15, 2026 | Award | +1,194.07 | – | – | 61,946 |
| John P. Surma Director | May 15, 2026 | Award | +1,656.32 | – | – | 93,426 |
| Christine S. Breves Director | May 15, 2026 | Award | +276.83 | – | – | 14,361 |
| J. Michael Stice Director | May 15, 2026 | Award | +1,098.21 | – | – | 56,973 |
| Ray N. Walker JR Director | Apr 30, 2026 | Award | +2,696.39 | – | – | 4,440 |
| John P. Surma Director | Apr 30, 2026 | Award | +3,028.94 | – | – | 92,219 |
| Garry L. Peiffer Director | Apr 30, 2026 | Award | +2,696.39 | – | – | 66,769 |
| Christopher A. Helms Director | Apr 30, 2026 | Award | +2,696.39 | – | – | 83,447 |
| J. Michael Stice Director | Apr 30, 2026 | Award | +3,028.94 | – | – | 56,324 |
| Frank M. Semple Director | Apr 30, 2026 | Award | +3,028.94 | – | – | 61,201 |
| Christine S. Breves Director | Apr 30, 2026 | Award | +2,696.39 | – | – | 14,534 |
| J. Michael Stice Director | Apr 30, 2026 | Award | +2,579.54 | – | – | 55,875 |
| Frank M. Semple Director | Apr 30, 2026 | Award | +2,579.54 | – | – | 60,752 |
| Garry L. Peiffer Director | Apr 30, 2026 | Award | +2,246.99 | – | – | 66,319 |
| Christopher A. Helms Director | Apr 30, 2026 | Award | +2,246.99 | – | – | 82,998 |
| Christine S. Breves Director | Apr 30, 2026 | Award | +2,246.99 | – | – | 14,084 |
| Ray N. Walker JR Director | Apr 30, 2026 | Award | +2,246.99 | – | – | 3,991 |
| John P. Surma Director | Apr 30, 2026 | Award | +2,579.54 | – | – | 91,770 |
| Molly R. Benson Chief Legal Ofc & Corp Sec | Mar 2, 2026 | Tax withholding | −614 | $59.22 | $36.36K | 48,352 |
| Molly R. Benson Chief Legal Ofc & Corp Sec | Mar 2, 2026 | Tax withholding | −998 | $59.22 | $59.10K | 46,114 |
| Molly R. Benson Chief Legal Ofc & Corp Sec | Mar 2, 2026 | Tax withholding | −1,240 | $59.22 | $73.43K | 47,112 |
| Carl Kristopher Hagedorn Exec VP & Chief Fin Ofc, Director | Mar 2, 2026 | Tax withholding | −663 | $59.22 | $39.26K | 20,409 |
| Carl Kristopher Hagedorn Exec VP & Chief Fin Ofc, Director | Mar 2, 2026 | Tax withholding | −916 | $59.22 | $54.25K | 21,072 |
| Carl Kristopher Hagedorn Exec VP & Chief Fin Ofc, Director | Mar 2, 2026 | Tax withholding | −422 | $59.22 | $24.99K | 21,988 |
| Maryann T. Mannen Chairman, President & CEO, Director | Mar 2, 2026 | Tax withholding | −6,409 | $59.22 | $379.54K | 165,459 |
| Maryann T. Mannen Chairman, President & CEO, Director | Mar 2, 2026 | Tax withholding | −3,404 | $59.22 | $201.58K | 171,868 |
| Maryann T. Mannen Chairman, President & CEO, Director | Mar 2, 2026 | Tax withholding | −3,407 | $59.22 | $201.76K | 175,272 |
| Gregory Scott Floerke Exec. VP and COO | Mar 2, 2026 | Tax withholding | −995 | $59.22 | $58.92K | 97,234 |
| Gregory Scott Floerke Exec. VP and COO | Mar 2, 2026 | Tax withholding | −1,100 | $59.22 | $65.14K | 96,134 |
| Gregory Scott Floerke Exec. VP and COO | Mar 2, 2026 | Tax withholding | −797 | $59.22 | $47.20K | 95,337 |
| Shawn M. Lyon Senior VP, Log. & Storage | Mar 2, 2026 | Tax withholding | −798 | $59.22 | $47.26K | 28,289 |
| Shawn M. Lyon Senior VP, Log. & Storage | Mar 2, 2026 | Tax withholding | −1,033 | $59.22 | $61.17K | 29,087 |
| Shawn M. Lyon Senior VP, Log. & Storage | Mar 2, 2026 | Tax withholding | −920 | $59.22 | $54.48K | 30,120 |
| Molly R. Benson Chief Legal Ofc & Corp Sec | Mar 1, 2026 | Award | +8,803 | – | – | 48,966 |
| Maria A. Khoury Director | Mar 1, 2026 | Award | +8,451 | – | – | 8,451 |
| Carl Kristopher Hagedorn Exec VP & Chief Fin Ofc, Director | Mar 1, 2026 | Award | +4,930 | – | – | 22,410 |
| Maryann T. Mannen Chairman, President & CEO, Director | Mar 1, 2026 | Award | +52,817 | – | – | 178,679 |
| Gregory Scott Floerke Exec. VP and COO | Mar 1, 2026 | Award | +5,986 | – | – | 98,229 |
| Shawn M. Lyon Senior VP, Log. & Storage | Mar 1, 2026 | Award | +5,986 | – | – | 31,040 |
| Frank M. Semple Director | Feb 17, 2026 | Award | +1,071.82 | – | – | 58,172 |
| Garry L. Peiffer Director | Feb 17, 2026 | Award | +1,180.52 | – | – | 64,072 |
| Christopher A. Helms Director | Feb 17, 2026 | Award | +1,285.16 | – | – | 80,751 |
| Christine S. Breves Director | Feb 17, 2026 | Award | +218.1 | – | – | 11,837 |
| Ray N. Walker JR Director | Feb 17, 2026 | Award | +32.13 | – | – | 1,744 |
| J. Michael Stice Director | Feb 17, 2026 | Award | +981.96 | – | – | 53,295 |
| John P. Surma Director | Feb 17, 2026 | Award | +1,505.13 | – | – | 89,190 |
| Michael J. Hennigan Executive Chairman, Director | Dec 12, 2025 | Tax withholding | −1,335 | $54.85 | $73.22K | 359,137 |
| Molly R. Benson Chief Legal Ofc & Corp Sec | Dec 12, 2025 | Tax withholding | −306 | $54.85 | $16.78K | 40,163 |
| Shawn M. Lyon Senior VP, Log. & Storage | Dec 12, 2025 | Tax withholding | −245 | $54.85 | $13.44K | 25,054 |
| Gregory Scott Floerke Exec. VP and COO | Dec 12, 2025 | Tax withholding | −242 | $54.85 | $13.27K | 92,243 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Carl Kristopher Hagedorn Officer, Director | Nov 18, 2024 | 4,000 | $188.96K | Nov 18, 2024 | Restricted Stock Vesting |