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Livermore
Livermore
ZHEN

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: 301 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: $7.51BQ4 2021: $7.48BQ1 2022: $8.20BQ2 2022: $6.97BQ3 2022: $6.98BQ4 2022: $7.36BQ1 2023: $7.91BQ2 2023: $7.62BQ3 2023: $8.18BQ4 2023: $8.15BQ1 2024: $9.32BQ2 2024: $10.2BQ3 2024: $10.3BQ4 2024: $10.4BQ1 2025: $11.6BQ2 2025: $11.2BQ3 2025: $10.5BQ4 2025: $9.52BQ1 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$9.52B
Q3 2025576$10.5B
Q2 2025575$11.2B
Q1 2025570$11.6B
Q4 2024535$10.4B
Q3 2024502$10.3B
Q2 2024491$10.2B
Q1 2024480$9.32B
Q4 2023444$8.15B
Q3 2023398$8.18B
Q2 2023370$7.62B
Q1 2023381$7.91B
Q4 2022359$7.36B
Q3 2022342$6.98B
Q2 2022340$6.97B
Q1 2022350$8.20B
Q4 2021341$7.48B
Q3 2021311$7.51B
Q2 2021301$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
Signal Advisors Wealth, LLC12,197$687.0K0.04%+753+6.6%Added
Addis & Hill, Inc12,150$684.4K0.38%00.0%Unchanged
IHT Wealth Management, LLC11,790$664.1K0.01%+1,024+9.5%Added
Venture Visionary Partners LLC11,677$657.8K0.02%+304+2.7%Added
Wealthstar Advisors, LLC11,669$657.3K0.33%+243+2.1%Added
David R. Rahn & Associates Inc.11,635$655.4K0.16%00.0%Unchanged
Monetary Management Group Inc11,600$653.4K0.13%00.0%Unchanged
Bryn Mawr Trust Co11,569$651.7K0.01%00.0%Unchanged
Merrion Investment Management Co, LLC11,525$649.2K0.31%00.0%Unchanged
Northstar Advisory Group, LLC11,500$647.8K0.20%−500−4.2%Reduced
Equitable Holdings, Inc.11,176$629.5K0.00%−1,219−9.8%Reduced
Mitchell McLeod Pugh & Williams Inc11,106$625.6K0.08%+205+1.9%Added
Lifetime Wealth Management P.C.11,000$619.6K0.36%00.0%Unchanged
Capital Advisors Inc10,884$613.1K0.01%−267−2.4%Reduced
Diversify Wealth Management, LLC10,467$610.8K0.01%+122+1.2%Added
Diversify Advisory Services, LLC10,467$610.8K0.01%+136+1.3%Added
Marshall Investment Management, LLC10,736$604.8K0.25%+40.0%Added
Bedel Financial Consulting, Inc.10,632$598.9K0.06%+81+0.8%Added
Bouchey Financial Group Ltd10,568$595.3K0.04%00.0%Unchanged
Trueblood Wealth Management, LLC10,377$584.5K0.20%+466+4.7%Added
Sunbeam Capital Management, LLC10,355$583.3K0.27%+9+0.1%Added
Capital Investment Advisors, LLC10,268$578.4K0.01%−728−6.6%Reduced
Compass Financial Management LLC9,988$576.8K0.07%+9,988New
Magnus Financial Group LLC10,232$576.4K0.04%+674+7.1%Added
MML Investors Services, LLC10,206$574.9K0.00%+1,969+23.9%Added
Rothschild Investment LLC10,150$571.8K0.02%00.0%Unchanged
Bokf, NA10,143$571.4K0.01%+228+2.3%Added
Retirement Solution Inc.10,101$569.0K0.11%+10,101New
Abel Hall, LLC10,000$563.3K0.10%00.0%Unchanged
Strategic Financial Concepts, LLC9,985$562.5K0.17%+1,315+15.2%Added
Walled Lake Planning & Wealth Management, LLC9,924$559.0K0.14%+9+0.1%Added
Colonial River Wealth Management, LLC9,903$557.8K0.16%−329−3.2%Reduced
Essex Financial Services, Inc.9,807$552.4K0.03%00.0%Unchanged
Princeton Global Asset Management LLC9,740$548.7K0.08%−737−7.0%Reduced
Bitterroot Capital Advisors LLC9,703$546.6K0.33%+185+1.9%Added
Silverberg Bernstein Capital Management LLC9,644$543.2K0.21%00.0%Unchanged
Holderness Investments Co9,582$539.8K0.09%+200+2.1%Added
Pinnacle Financial Partners, Inc.9,547$537.8K0.00%−630−6.2%Reduced
Schulhoff & Co Inc9,500$535.1K0.22%00.0%Unchanged
Harbour Investments, Inc.9,326$525.3K0.01%−1,155−11.0%Reduced
Legacy Advisors, LLC9,275$522.5K0.05%00.0%Unchanged
Peapack Gladstone Financial Corp9,238$520.0K0.01%+87+1.0%Added
Wesbanco Bank Inc9,034$508.9K0.01%−11−0.1%Reduced
Focus Financial Network, Inc.8,994$506.6K0.02%+400+4.7%Added
XTX Topco Ltd8,923$502.6K0.01%−776−8.0%Reduced
Farther Finance Advisors, LLC8,921$502.5K0.00%+109+1.2%Added
Summit Trail Advisors, LLC8,835$497.7K0.01%−328−3.6%Reduced
Argent Advisors, Inc.8,807$496.1K0.12%00.0%Unchanged
Bogart Wealth, LLC8,748$492.8K0.02%−979−10.1%Reduced
Csenge Advisory Group8,678$488.8K0.02%+67+0.8%Added
Amplify Investments, LLC8,620$485.6K6.71%+1,293+17.6%Added
Silver Oak Securities, Inc8,583$483.5K0.03%+310+3.7%Added
Stablepoint Partners, LLC8,534$480.7K0.07%+251+3.0%Added
Chung Wu Investment Group, LLC8,500$478.8K0.31%00.0%Unchanged
True North Advisors, LLC8,494$478.5K0.05%+8,494New
Convergence Financial, LLC8,470$477.1K0.04%+38+0.5%Added
Foresight Global Investors, Inc.8,464$476.8K0.29%00.0%Unchanged
Citizens Financial Group Inc8,401$473.2K0.01%−36−0.4%Reduced
MSH Capital Advisors LLC8,392$472.7K0.08%+8,392New
Carnegie Capital Asset Management, LLC8,316$468.4K0.01%00.0%Unchanged
RSM US Wealth Management LLC8,270$465.8K0.01%+4,221+104.2%Added
Perigon Wealth Management, LLC8,241$464.2K0.01%−90−1.1%Reduced
International Assets Investment Management, LLC8,231$460.3K0.03%−193−2.3%Reduced
Newman Dignan & Sheerar, Inc.8,100$456.3K0.09%00.0%Unchanged
Maia Wealth LLC8,017$451.6K0.07%+207+2.7%Added
Signaturefd, LLC8,000$450.6K0.01%00.0%Unchanged
Valeo Financial Advisors, LLC7,991$450.1K0.01%−300−3.6%Reduced
Spire Wealth Management7,988$450.0K0.01%−3,272−29.1%Reduced
Allied Private Wealth LLC7,807$448.5K0.29%+7,807New
Belfer Management LLC7,829$441.0K7.31%00.0%Unchanged
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
Kestra Private Wealth Services, LLC7,795$439.1K0.00%−31,032−79.9%Reduced
Lee Financial Co7,778$438.1K0.06%+406+5.5%Added
Advisor OS, LLC7,748$436.4K0.03%00.0%Unchanged
Fiduciary Financial Group, LLC7,745$436.3K0.05%−40−0.5%Reduced
Pine Valley Investments Ltd Liability Co7,723$435.0K0.02%+19+0.2%Added
Clark Financial Services Group Inc7,706$434.1K0.20%+1,088+16.4%Added
Traynor Capital Management, Inc.7,637$430.2K0.02%+313+4.3%Added
Westco Advisory Services Inc7,585$427.3K0.26%−330−4.2%Reduced
National Bank of Canada7,500$422.5K0.00%00.0%Unchanged
Glenview Trust Co7,500$422.5K0.01%00.0%Unchanged
Ulland Investment Advisors, LLC7,500$422.0K0.31%00.0%Unchanged
Sigma Planning Corp7,475$421.1K0.01%+129+1.8%Added
Hilltop National Bank7,400$416.8K0.09%+1,000+15.6%Added
Rollins Financial Advisors, LLC7,379$415.6K0.05%+2,190+42.2%Added
Allegheny Financial Group LTD7,364$414.8K0.04%00.0%Unchanged
O'Shaughnessy Asset Management, LLC7,347$413.9K0.00%+2,411+48.8%Added
Arista Wealth Management, LLC7,306$411.5K0.04%00.0%Unchanged
Farmers & Merchants Investments Inc7,285$410.4K0.01%00.0%Unchanged
Wedmont Private Capital7,160$407.8K0.01%−3,384−32.1%Reduced
Level Four Advisory Services, LLC7,238$407.7K0.01%+629+9.5%Added
Whittier Trust Co of Nevada Inc7,000$402.6K0.01%00.0%Unchanged
American National Bank7,126$401.4K0.03%00.0%Unchanged
Principal Securities, Inc.7,046$396.9K0.00%+3,341+90.2%Added
Hancock Whitney Corp7,038$396.5K0.01%00.0%Unchanged
PDS Planning, Inc7,025$395.7K0.02%+7,025New
Cedar Wealth Management, LLC7,024$395.7K0.10%+2,478+54.5%Added
Washington Trust Advisors, Inc.7,020$395.4K0.03%+275+4.1%Added
Carret Asset Management, LLC7,000$394.3K0.03%+7,000New