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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, Q4 2025

Institutional positions in MPLX LP as of Dec 31, 2025. 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
633
+67 vs. Q3 2025
Shares held
178.3M
−31.5M (−15.0%) vs. Q3 2025
Total value
$9.52B
−$965.4M (−9.2%) vs. Q3 2025
New holders
99
230 more added
Sold out
32
134 more reduced

10 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 633 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 heldQ4 2025: $9.52B
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, Q4 2025

Shares, value and share of portfolio for each institution holding MPLX LP; share changes are against Q3 2025.

Institutions holding MPLX in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Vivaldi Asset Management, LLC3,754$200.4K0.01%+3,754New
Huntington National Bank3,800$202.8K0.00%−165−4.2%Reduced
Bluefin Capital Management, LLC3,800$202.8K0.06%+3,800New
Douglass Winthrop Advisors, LLC3,800$202.8K0.00%+3,800New
Balboa Wealth Partners3,821$203.9K0.03%+3,821New
J Hagan Capital, Inc.3,823$204.0K0.11%+3,823New
Sym Financial Corp3,825$204.1K0.02%+3,825New
Washington Trust Advisors, Inc.3,825$204.1K0.02%+3,825New
Gryphon Financial Partners LLC3,828$204.3K0.02%+3,828New
RSM US Wealth Management LLC3,841$206.0K0.00%+3,841New
Willis Johnson & Associates, Inc.3,861$206.1K0.01%+3,861New
MinichMacGregor Wealth Management, LLC3,865$206.3K0.04%−377−8.9%Reduced
Ramiah Investment Group3,867$206.4K0.18%+3,867New
Tocqueville Asset Management L.P.3,900$208.1K0.00%+3,900New
Teamwork Financial Advisors, LLC3,910$208.7K0.02%+3,910New
Stableford Capital II LLC3,920$209.2K0.08%+3,920New
Panoramic Investment Advisors, LLC3,957$211.2K0.11%−100−2.5%Reduced
Shepherd Financial Partners LLC3,968$211.7K0.02%+3,968New
Sound Income Strategies, LLC3,746$212.0K0.01%+8+0.2%Added
Welch & Forbes LLC4,029$215.0K0.00%00.0%Unchanged
Clearstead Advisors, LLC4,038$215.5K0.00%00.0%Unchanged
HFG Advisors, Inc.4,050$216.1K0.16%00.0%Unchanged
Second Line Capital, LLC4,052$216.3K0.04%+4,052New
Hilton Head Capital Partners, LLC4,058$216.6K0.13%+4,058New
GWN Securities Inc.4,092$218.4K0.04%+4,092New
Archford Capital Strategies, LLC4,107$219.2K0.03%00.0%Unchanged
MONECO Advisors, LLC4,113$219.5K0.02%+4,113New
SRS Capital Advisors, Inc.4,129$220.4K0.01%+902+28.0%Added
Fermata Advisors, LLC4,144$221.2K0.05%+4,144New
Mattern Capital Management, LLC4,300$229.5K0.03%00.0%Unchanged
Jaffetilchin Investment Partners, LLC4,340$231.6K0.01%+28+0.6%Added
Simon Quick Advisors, LLC4,400$234.8K0.01%+4,400New
Sanders Morris Harris LLC4,380$236.2K0.36%−3,160−41.9%Reduced
Park Avenue Securities LLC4,450$237.0K0.00%+4,450New
NTV Asset Management LLC4,469$238.5K0.03%+4,469New
Stonehaven Wealth & Tax Solutions, LLC4,520$241.2K0.22%+4,520New
Zhang Financial LLC4,543$242.5K0.01%00.0%Unchanged
Ieq Capital, LLC4,583$244.6K0.00%00.0%Unchanged
AE Wealth Management LLC4,605$245.8K0.00%+170+3.8%Added
Tyche Wealth Partners LLC4,647$248.0K0.04%+500+12.1%Added
Austin Wealth Management, LLC4,756$249.9K0.04%00.0%Unchanged
Stillwater Wealth Management Group4,700$250.8K0.17%−200−4.1%Reduced
Lodestone Wealth Management LLC4,704$251.1K0.10%+94+2.0%Added
Brian Low Financial Group, LLC4,728$252.3K0.18%00.0%Unchanged
Strategic Wealth Partners, Ltd.4,728$252.3K0.02%+4,728New
Rowland & Co Investment Counsel4,741$253.0K0.05%+247+5.5%Added
WSFS Capital Management, LLC4,742$253.1K0.01%+21+0.4%Added
Baldwin Brothers Inc4,796$256.0K0.02%00.0%Unchanged
NBC Securities, Inc.4,796$256.0K0.02%−21−0.4%Reduced
William John Sempolinski4,839$258.3K0.13%+4,839New
Legacy Wealth Advisors, LLC4,855$259.1K0.17%+4,855New
Wealth Advisors of Tampa Bay, LLC4,900$261.5K0.09%00.0%Unchanged
Naviter Wealth, LLC4,950$264.2K0.03%+4,950New
Entrewealth, LLC4,756$266.3K0.12%00.0%Unchanged
Rockland Trust Co5,000$266.9K0.01%00.0%Unchanged
Intrepid Capital Management Inc5,000$266.9K0.10%00.0%Unchanged
Mission Wealth Management, LP5,000$266.9K0.01%+500+11.1%Added
Shay Capital LLC5,000$266.9K0.04%+5,000New
Stonebridge Financial Group, LLC5,000$266.9K0.23%+5,000New
De Lisle Partners LLP5,000$267.0K0.03%00.0%Unchanged
Ulland Investment Advisors, LLC5,000$267.0K0.21%+2,000+66.7%Added
Ascent Wealth Partners, LLC5,015$267.7K0.03%00.0%Unchanged
Wick Capital Partners, LLC5,032$268.5K0.05%+5,032New
Meridian Wealth Management, LLC5,109$272.7K0.01%+1,000+24.3%Added
Somerset Trust Co5,120$273.3K0.08%00.0%Unchanged
Magnus Financial Group LLC5,145$274.6K0.02%+97+1.9%Added
Royal Harbor Partners, LLC5,195$277.3K0.09%00.0%Unchanged
Evolve Private Wealth, LLC5,229$279.1K0.02%+5,229New
Aptus Capital Advisors, LLC5,240$279.7K0.00%+925+21.4%Added
Sittner & Nelson, LLC5,000$280.0K0.10%00.0%Unchanged
Claro Advisors LLC5,253$280.4K0.04%00.0%Unchanged
O'Shaughnessy Asset Management, LLC5,263$280.9K0.00%+327+6.6%Added
Madden Securities Corp5,308$283.3K0.09%−327−5.8%Reduced
Parsons Capital Management Inc5,327$284.3K0.02%00.0%Unchanged
Green Square Capital Advisors LLC5,330$284.4K0.03%+34+0.6%Added
BSW Wealth Partners5,376$286.9K0.03%00.0%Unchanged
Rockbridge Capital Management LLC5,381$287.2K0.17%00.0%Unchanged
MBE Wealth Management, LLC5,388$287.6K0.12%+40+0.7%Added
Outlook Wealth Advisors, LLC5,390$287.7K0.07%−156−2.8%Reduced
Quadrant Private Wealth Management, LLC5,400$288.2K0.05%00.0%Unchanged
Oak Family Advisors, LLC5,437$290.2K0.09%+7+0.1%Added
Soltis Investment Advisors LLC5,468$291.8K0.02%+5,468New
Madison Park Capital Advisors, LLC5,500$293.5K0.24%00.0%Unchanged
StoneX Group Inc.5,531$295.2K0.01%+1,265+29.7%Added
Tucker Asset Management LLC5,560$296.7K0.09%+5,560New
Beverly Hills Private Wealth, LLC5,579$297.8K0.05%+5,579New
Visionary Wealth Advisors5,620$299.9K0.01%+30+0.5%Added
Philadelphia Trust Co5,620$300.0K0.02%00.0%Unchanged
JustInvest LLC5,630$300.5K0.00%+1,061+23.2%Added
Bank of Montreal5,644$301.2K0.00%00.0%Unchanged
Federation des caisses Desjardins du Quebec5,658$302.1K0.00%+208+3.8%Added
Alpha Cubed Investments, LLC5,675$302.9K0.01%−2,018−26.2%Reduced
Parallel Advisors, LLC5,679$303.1K0.01%+47+0.8%Added
Secure Asset Management, LLC5,684$303.3K0.05%+48+0.9%Added
Allie Family Office LLC5,719$305.2K0.14%00.0%Unchanged
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management5,720$305.3K0.01%−3,600−38.6%Reduced
Endeavor Private Wealth, Inc.5,736$306.1K0.09%+594+11.6%Added
Mosaic Family Wealth Partners, LLC5,786$308.8K0.03%00.0%Unchanged
Van Cleef Asset Management,Inc5,808$310.0K0.03%00.0%Unchanged
Atwood & Palmer Inc5,844$311.9K0.02%00.0%Unchanged