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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, Q2 2026

Institutional positions in MPLX LP as of Jun 30, 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
639
+2 vs. Q1 2026
Shares held
196.3M
−5.77M (−2.9%) vs. Q1 2026
Total value
$11.1B
−$473.1M (−4.1%) vs. Q1 2026
New holders
59
244 more added
Sold out
57
149 more reduced

9 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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.

Institutional holdersQ2 2026: 639 institutions
Q1 2021: 306 institutionsQ2 2021: 302 institutionsQ3 2021: 311 institutionsQ4 2021: 341 institutionsQ1 2022: 350 institutionsQ2 2022: 340 institutionsQ3 2022: 342 institutionsQ4 2022: 359 institutionsQ1 2023: 381 institutionsQ2 2023: 370 institutionsQ3 2023: 398 institutionsQ4 2023: 444 institutionsQ1 2024: 480 institutionsQ2 2024: 491 institutionsQ3 2024: 502 institutionsQ4 2024: 535 institutionsQ1 2025: 570 institutionsQ2 2025: 575 institutionsQ3 2025: 576 institutionsQ4 2025: 633 institutionsQ1 2026: 646 institutionsQ2 2026: 639 institutions
Value heldQ2 2026: $11.1B
Q1 2021: $7.34BQ2 2021: $8.20BQ3 2021: $7.52BQ4 2021: $7.51BQ1 2022: $8.33BQ2 2022: $6.97BQ3 2022: $6.98BQ4 2022: $7.36BQ1 2023: $7.99BQ2 2023: $7.71BQ3 2023: $8.19BQ4 2023: $8.62BQ1 2024: $10.3BQ2 2024: $10.5BQ3 2024: $10.6BQ4 2024: $10.6BQ1 2025: $12.1BQ2 2025: $11.2BQ3 2025: $10.7BQ4 2025: $9.55BQ1 2026: $11.6BQ2 2026: $11.1B
Institutions holding MPLX and their total value by quarter
QuarterHoldersValue
Q2 2026639$11.1B
Q1 2026646$11.6B
Q4 2025633$9.55B
Q3 2025576$10.7B
Q2 2025575$11.2B
Q1 2025570$12.1B
Q4 2024535$10.6B
Q3 2024502$10.6B
Q2 2024491$10.5B
Q1 2024480$10.3B
Q4 2023444$8.62B
Q3 2023398$8.19B
Q2 2023370$7.71B
Q1 2023381$7.99B
Q4 2022359$7.36B
Q3 2022342$6.98B
Q2 2022340$6.97B
Q1 2022350$8.33B
Q4 2021341$7.51B
Q3 2021311$7.52B
Q2 2021302$8.20B
Q1 2021306$7.34B

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding MPLX LP; share changes are against Q1 2026.

Institutions holding MPLX in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
MBE Wealth Management, LLC5,466$307.9K0.11%+40+0.7%Added
Parsons Capital Management Inc5,471$308.2K0.01%+144+2.7%Added
Ameritas Advisory Services, LLC5,473$308.3K0.01%+5,473New
Knuff & Co LLC5,500$309.8K0.08%+5,500New
Wick Capital Partners, LLC5,509$310.3K0.05%+449+8.9%Added
Counterpoint Mutual Funds LLC5,510$310.4K0.03%+5,510New
HFG Advisors, Inc.5,550$312.6K0.20%+1,500+37.0%Added
Gladstone Institutional Advisory LLC5,578$314.2K0.01%−594−9.6%Reduced
Philadelphia Trust Co5,620$317.0K0.02%00.0%Unchanged
Claro Advisors LLC5,653$318.4K0.03%+400+7.6%Added
Confluence Wealth Services, Inc.5,733$322.9K0.01%+5,733New
Savvy Advisors, Inc.5,737$323.2K0.01%+12+0.2%Added
Mosaic Family Wealth Partners, LLC5,786$325.9K0.02%00.0%Unchanged
Van Cleef Asset Management,Inc5,808$327.2K0.03%00.0%Unchanged
Atwood & Palmer Inc5,844$329.2K0.02%00.0%Unchanged
Freestone Capital Holdings, LLC5,909$332.9K0.01%+5,909New
Corps Capital Advisors, LLC6,104$343.8K0.28%00.0%Unchanged
Advus Financial Partners, LLC6,191$348.7K0.08%+191+3.2%Added
Bell Bank6,200$349.2K0.01%00.0%Unchanged
White Pine Capital LLC6,263$352.8K0.08%+6,263New
Vestcor Inc6,285$354.0K0.01%00.0%Unchanged
Squarepoint Ops LLC6,300$354.9K0.00%00.0%Unchanged
Madison Park Capital Advisors, LLC6,744$358.0K0.26%+1,244+22.6%Added
Lavaca Capital LLC6,400$360.5K0.04%00.0%Unchanged
Vestia Personal Wealth Advisors6,420$361.6K0.14%00.0%Unchanged
Formidable Asset Management, LLC6,340$361.8K0.06%−92−1.4%Reduced
Principal Street Partners, LLC6,448$363.2K0.05%00.0%Unchanged
First National Bank of Omaha6,489$364.8K0.01%−1,000−13.4%Reduced
Winebrenner Capital Management LLC6,495$365.9K0.22%+547+9.2%Added
Keudell/Morrison Wealth Management6,509$366.7K0.07%+9+0.1%Added
Aspen Grove Capital, LLC6,547$368.8K0.05%+106+1.6%Added
Redhawk Wealth Advisors, Inc.6,586$371.0K0.04%+45+0.7%Added
Titleist Asset Management, LLC6,650$374.6K0.03%00.0%Unchanged
Parallel Advisors, LLC6,716$378.3K0.01%+417+6.6%Added
Severin Investments, LLC6,809$383.5K0.29%+359+5.6%Added
United Advisor Group, LLC6,810$383.6K0.04%+6,810New
ORG Wealth Partners, LLC6,850$385.9K0.06%00.0%Unchanged
Simplex Trading, LLC6,862$386.5K0.01%+6,862New
Icon Wealth Advisors, LLC6,871$387.0K0.02%−297−4.1%Reduced
Carret Asset Management, LLC7,000$394.3K0.03%+7,000New
Washington Trust Advisors, Inc.7,020$395.4K0.03%+275+4.1%Added
Cedar Wealth Management, LLC7,024$395.7K0.10%+2,478+54.5%Added
PDS Planning, Inc7,025$395.7K0.02%+7,025New
Hancock Whitney Corp7,038$396.5K0.01%00.0%Unchanged
Principal Securities, Inc.7,046$396.9K0.00%+3,341+90.2%Added
American National Bank7,126$401.4K0.03%00.0%Unchanged
Whittier Trust Co of Nevada Inc7,000$402.6K0.01%00.0%Unchanged
Level Four Advisory Services, LLC7,238$407.7K0.01%+629+9.5%Added
Wedmont Private Capital7,160$407.8K0.01%−3,384−32.1%Reduced
Farmers & Merchants Investments Inc7,285$410.4K0.01%00.0%Unchanged
Arista Wealth Management, LLC7,306$411.5K0.04%00.0%Unchanged
O'Shaughnessy Asset Management, LLC7,347$413.9K0.00%+2,411+48.8%Added
Allegheny Financial Group LTD7,364$414.8K0.04%00.0%Unchanged
Rollins Financial Advisors, LLC7,379$415.6K0.05%+2,190+42.2%Added
Hilltop National Bank7,400$416.8K0.09%+1,000+15.6%Added
Sigma Planning Corp7,475$421.1K0.01%+129+1.8%Added
Ulland Investment Advisors, LLC7,500$422.0K0.31%00.0%Unchanged
National Bank of Canada7,500$422.5K0.00%00.0%Unchanged
Glenview Trust Co7,500$422.5K0.01%00.0%Unchanged
Westco Advisory Services Inc7,585$427.3K0.26%−330−4.2%Reduced
Traynor Capital Management, Inc.7,637$430.2K0.02%+313+4.3%Added
Clark Financial Services Group Inc7,706$434.1K0.20%+1,088+16.4%Added
Pine Valley Investments Ltd Liability Co7,723$435.0K0.02%+19+0.2%Added
Fiduciary Financial Group, LLC7,745$436.3K0.05%−40−0.5%Reduced
Advisor OS, LLC7,748$436.4K0.03%00.0%Unchanged
Lee Financial Co7,778$438.1K0.06%+406+5.5%Added
Kestra Private Wealth Services, LLC7,795$439.1K0.00%−31,032−79.9%Reduced
Mount Yale Investment Advisors, LLC7,817$440.3K0.01%−912−10.4%Reduced
Vestmark Advisory Solutions, Inc.7,817$440.3K0.00%−412−5.0%Reduced
Belfer Management LLC7,829$441.0K7.31%00.0%Unchanged
Allied Private Wealth LLC7,807$448.5K0.29%+7,807New
Spire Wealth Management7,988$450.0K0.01%−3,272−29.1%Reduced
Valeo Financial Advisors, LLC7,991$450.1K0.01%−300−3.6%Reduced
Signaturefd, LLC8,000$450.6K0.01%00.0%Unchanged
Maia Wealth LLC8,017$451.6K0.07%+207+2.7%Added
Newman Dignan & Sheerar, Inc.8,100$456.3K0.09%00.0%Unchanged
International Assets Investment Management, LLC8,231$460.3K0.03%−193−2.3%Reduced
Perigon Wealth Management, LLC8,241$464.2K0.01%−90−1.1%Reduced
RSM US Wealth Management LLC8,270$465.8K0.01%+4,221+104.2%Added
Carnegie Capital Asset Management, LLC8,316$468.4K0.01%00.0%Unchanged
MSH Capital Advisors LLC8,392$472.7K0.08%+8,392New
Citizens Financial Group Inc8,401$473.2K0.01%−36−0.4%Reduced
Foresight Global Investors, Inc.8,464$476.8K0.29%00.0%Unchanged
Convergence Financial, LLC8,470$477.1K0.04%+38+0.5%Added
True North Advisors, LLC8,494$478.5K0.05%+8,494New
Chung Wu Investment Group, LLC8,500$478.8K0.31%00.0%Unchanged
Stablepoint Partners, LLC8,534$480.7K0.07%+251+3.0%Added
Silver Oak Securities, Inc8,583$483.5K0.03%+310+3.7%Added
Amplify Investments, LLC8,620$485.6K6.71%+1,293+17.6%Added
Csenge Advisory Group8,678$488.8K0.02%+67+0.8%Added
Bogart Wealth, LLC8,748$492.8K0.02%−979−10.1%Reduced
Argent Advisors, Inc.8,807$496.1K0.12%00.0%Unchanged
Summit Trail Advisors, LLC8,835$497.7K0.01%−328−3.6%Reduced
Farther Finance Advisors, LLC8,921$502.5K0.00%+109+1.2%Added
XTX Topco Ltd8,923$502.6K0.01%−776−8.0%Reduced
Focus Financial Network, Inc.8,994$506.6K0.02%+400+4.7%Added
Wesbanco Bank Inc9,034$508.9K0.01%−11−0.1%Reduced
Peapack Gladstone Financial Corp9,238$520.0K0.01%+87+1.0%Added
Legacy Advisors, LLC9,275$522.5K0.05%00.0%Unchanged
Harbour Investments, Inc.9,326$525.3K0.01%−1,155−11.0%Reduced