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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, 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.

Institutional holdersQ1 2026: 646 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 heldQ1 2026: $11.6B
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, Q1 2026

Shares, value and share of portfolio for each institution holding MPLX LP; share changes are against Q4 2025.

Institutions holding MPLX in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Equitable Holdings, Inc.12,395$661.5K0.00%+1,409+12.8%Added
Bryn Mawr Trust Co11,569$660.2K0.02%00.0%Unchanged
Merrion Investment Management Co, LLC11,525$657.7K0.35%00.0%Unchanged
Signal Advisors Wealth, LLC11,444$653.1K0.04%+11,444New
Wealthstar Advisors, LLC11,426$652.1K0.39%−1,172−9.3%Reduced
Venture Visionary Partners LLC11,373$649.1K0.02%−196−1.7%Reduced
Spire Wealth Management11,260$642.6K0.02%+850+8.2%Added
Gen-Wealth Partners Inc11,244$641.7K0.20%+3,037+37.0%Added
Capital Advisors Inc11,151$636.4K0.01%+3,709+49.8%Added
HBK Sorce Advisory LLC11,753$634.7K0.01%−86−0.7%Reduced
Lifetime Wealth Management P.C.11,000$627.8K0.36%00.0%Unchanged
Capital Investment Advisors, LLC10,996$627.5K0.01%+1,876+20.6%Added
Dynamic Advisor Solutions LLC10,935$624.1K0.02%+4,052+58.9%Added
Mitchell McLeod Pugh & Williams Inc10,901$622.1K0.09%00.0%Unchanged
IHT Wealth Management, LLC10,766$614.4K0.01%+1,014+10.4%Added
Navellier & Associates Inc10,760$614.1K0.06%+275+2.6%Added
Marshall Investment Management, LLC10,732$612.5K0.29%+204+1.9%Added
Bedel Financial Consulting, Inc.10,551$602.2K0.07%+76+0.7%Added
M&T Bank Corp10,494$598.9K0.00%00.0%Unchanged
Harbour Investments, Inc.10,481$598.2K0.01%+3,395+47.9%Added
Princeton Global Asset Management LLC10,477$597.9K0.10%−1,038−9.0%Reduced
Bouchey Financial Group Ltd10,568$595.6K0.04%00.0%Unchanged
Sunbeam Capital Management, LLC10,346$590.4K0.34%+27+0.3%Added
Wedmont Private Capital10,544$589.3K0.02%−536−4.8%Reduced
Colonial River Wealth Management, LLC10,232$583.9K0.21%00.0%Unchanged
Pinnacle Financial Partners, Inc.10,177$580.8K0.00%−2,700−21.0%Reduced
Rothschild Investment LLC10,150$579.3K0.03%00.0%Unchanged
Diversify Wealth Management, LLC10,345$574.4K0.01%+10,345New
Diversify Advisory Services, LLC10,331$573.6K0.09%−68−0.7%Reduced
Abel Hall, LLC10,000$570.7K0.12%00.0%Unchanged
Bokf, NA9,915$565.8K0.01%00.0%Unchanged
Walled Lake Planning & Wealth Management, LLC9,915$565.8K0.17%+496+5.3%Added
Trueblood Wealth Management, LLC9,911$565.6K0.22%+175+1.8%Added
Essex Financial Services, Inc.9,807$559.7K0.03%−1,010−9.3%Reduced
IFP Advisors, Inc9,773$557.7K0.01%+2,231+29.6%Added
Bogart Wealth, LLC9,727$555.1K0.02%00.0%Unchanged
XTX Topco Ltd9,699$553.5K0.01%−21,562−69.0%Reduced
Wellington Grp LLC9,675$552.2K0.17%+3,519+57.2%Added
Silverberg Bernstein Capital Management LLC9,644$550.4K0.30%00.0%Unchanged
Magnus Financial Group LLC9,558$545.5K0.04%+4,413+85.8%Added
Bitterroot Capital Advisors LLC9,518$543.2K0.33%+176+1.9%Added
Schulhoff & Co Inc9,500$542.2K0.22%00.0%Unchanged
Holderness Investments Co9,382$535.4K0.11%+200+2.2%Added
Legacy Advisors, LLC9,275$529.3K0.06%00.0%Unchanged
Summit Trail Advisors, LLC9,163$523.0K0.01%+2,563+38.8%Added
Peapack Gladstone Financial Corp9,151$522.0K0.01%+83+0.9%Added
Wesbanco Bank Inc9,045$516.2K0.01%−1,000−10.0%Reduced
Ameritas Investment Partners, Inc.8,983$512.6K0.02%00.0%Unchanged
Argent Advisors, Inc.8,807$502.6K0.14%+8,807New
Mount Yale Investment Advisors, LLC8,729$498.2K0.01%+2,451+39.0%Added
Strategic Financial Concepts, LLC8,670$494.8K0.12%+8,670New
Farther Finance Advisors, LLC8,812$492.8K0.00%−4,484−33.7%Reduced
Csenge Advisory Group8,611$491.4K0.02%−81−0.9%Reduced
Focus Financial Network, Inc.8,594$490.4K0.02%+400+4.9%Added
Chung Wu Investment Group, LLC8,500$485.1K0.42%00.0%Unchanged
Foresight Global Investors, Inc.8,464$483.0K0.31%00.0%Unchanged
Citizens Financial Group Inc8,437$481.5K0.01%+144+1.7%Added
Convergence Financial, LLC8,432$481.2K0.05%+8,432New
Perigon Wealth Management, LLC8,331$475.4K0.01%−390−4.5%Reduced
Carnegie Capital Asset Management, LLC8,316$474.6K0.01%−1,500−15.3%Reduced
Valeo Financial Advisors, LLC8,291$473.2K0.01%+422+5.4%Added
Stablepoint Partners, LLC8,283$472.7K0.07%00.0%Unchanged
Silver Oak Securities, Inc8,273$472.1K0.03%+143+1.8%Added
International Assets Investment Management, LLC8,424$471.1K0.03%+572+7.3%Added
MML Investors Services, LLC8,237$470.1K0.00%−2,530−23.5%Reduced
Vestmark Advisory Solutions, Inc.8,229$469.7K0.01%+1,951+31.1%Added
Newman Dignan & Sheerar, Inc.8,100$462.3K0.10%00.0%Unchanged
Signaturefd, LLC8,000$456.6K0.01%00.0%Unchanged
Matrix Private Capital Group LLC8,000$456.6K0.22%00.0%Unchanged
Quantum Financial Planning Services, Inc.8,000$456.6K0.16%00.0%Unchanged
NewEdge Wealth, LLC7,931$452.6K0.01%+1,194+17.7%Added
Westco Advisory Services Inc7,915$451.7K0.29%+770+10.8%Added
VestGen Advisors, LLC8,287$450.8K0.01%+8,287New
CWM, LLC7,894$450.5K0.00%−655−7.7%Reduced
Golden State Equity Partners7,839$447.4K0.03%+7,839New
Belfer Management LLC7,829$446.8K7.47%−20−0.3%Reduced
Maia Wealth LLC7,810$445.7K0.08%+143+1.9%Added
Fiduciary Financial Group, LLC7,785$444.3K0.06%−300−3.7%Reduced
Advisor OS, LLC7,748$442.2K0.03%00.0%Unchanged
Pine Valley Investments Ltd Liability Co7,704$439.7K0.02%+18+0.2%Added
Compass Financial Group, INC7,649$436.5K0.06%+7,649New
First National Bank of Omaha7,489$431.9K0.01%−100−1.3%Reduced
National Bank of Canada7,500$428.0K0.00%00.0%Unchanged
Glenview Trust Co7,500$428.0K0.01%+1,000+15.4%Added
Ulland Investment Advisors, LLC7,500$428.0K0.37%+2,500+50.0%Added
Sanders Morris Harris LLC7,484$427.1K0.07%+3,104+70.9%Added
Traynor Capital Management, Inc.7,324$422.4K0.03%+55+0.8%Added
Lee Financial Co7,372$420.7K0.06%00.0%Unchanged
Allegheny Financial Group LTD7,364$420.3K0.06%00.0%Unchanged
Sigma Planning Corp7,346$419.2K0.01%+72+1.0%Added
Amplify Investments, LLC7,327$418.2K7.50%00.0%Unchanged
Arista Wealth Management, LLC7,306$417.0K0.05%00.0%Unchanged
Farmers & Merchants Investments Inc7,285$415.8K0.01%−1,457−16.7%Reduced
Intrua Financial, LLC7,149$408.0K0.04%+79+1.1%Added
American National Bank7,126$406.7K0.04%−150−2.1%Reduced
Hancock Whitney Corp7,038$401.7K0.01%−1,950−21.7%Reduced
Icon Wealth Advisors, LLC7,168$398.0K0.03%+91+1.3%Added
ORG Wealth Partners, LLC6,850$390.9K0.08%00.0%Unchanged
Whittier Trust Co of Nevada Inc7,000$389.6K0.01%00.0%Unchanged
Foundations Investment Advisors, LLC6,799$388.0K0.00%−4,650−40.6%Reduced