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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
ORBA Wealth Advisors, L.L.C.6,756$385.6K0.46%00.0%Unchanged
Washington Trust Advisors, Inc.6,745$384.9K0.03%+2,920+76.3%Added
Titleist Asset Management, LLC6,650$379.5K0.03%+96+1.5%Added
Clark Financial Services Group Inc6,618$377.7K0.21%+6,618New
Level Four Advisory Services, LLC6,609$377.2K0.01%−11,204−62.9%Reduced
Redhawk Wealth Advisors, Inc.6,541$373.3K0.04%+251+4.0%Added
Keudell/Morrison Wealth Management6,500$371.0K0.08%00.0%Unchanged
National Wealth Management Group, LLC6,476$369.6K0.14%−419−6.1%Reduced
Severin Investments, LLC6,450$368.1K0.32%+52+0.8%Added
Principal Street Partners, LLC6,448$368.0K0.06%−70−1.1%Reduced
Aspen Grove Capital, LLC6,441$367.6K0.07%00.0%Unchanged
Vestia Personal Wealth Advisors6,420$366.4K0.17%00.0%Unchanged
Lavaca Capital LLC6,400$365.2K0.07%00.0%Unchanged
Hilltop National Bank6,400$365.2K0.09%00.0%Unchanged
Squarepoint Ops LLC6,300$359.5K0.00%+6,300New
Parallel Advisors, LLC6,299$359.5K0.01%+620+10.9%Added
Vestcor Inc6,285$359.0K0.01%00.0%Unchanged
Bell Bank6,200$353.8K0.02%00.0%Unchanged
GWN Securities Inc.6,198$353.8K0.07%+2,106+51.5%Added
Gladstone Institutional Advisory LLC6,172$352.3K0.01%−274−4.3%Reduced
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management6,166$351.9K0.01%+446+7.8%Added
Corps Capital Advisors, LLC6,104$348.4K0.30%+6,104New
Beverly Hills Private Wealth, LLC6,101$348.2K0.06%+522+9.4%Added
Formidable Asset Management, LLC6,432$343.3K0.05%−1,148−15.1%Reduced
Advus Financial Partners, LLC6,000$342.4K0.09%00.0%Unchanged
Great Valley Advisor Group, Inc.5,988$341.6K0.01%+5,988New
Winebrenner Capital Management LLC5,948$339.5K0.22%00.0%Unchanged
Atwood & Palmer Inc5,844$333.5K0.02%00.0%Unchanged
Van Cleef Asset Management,Inc5,808$331.5K0.04%00.0%Unchanged
Mosaic Family Wealth Partners, LLC5,786$330.2K0.03%00.0%Unchanged
Advisor Resource Council5,763$328.9K0.13%00.0%Unchanged
Secure Asset Management, LLC5,729$326.9K0.05%+45+0.8%Added
Savvy Advisors, Inc.5,725$326.7K0.01%+5,725New
Verdence Capital Advisors LLC5,719$326.4K0.02%+5,719New
Allie Family Office LLC5,719$326.4K0.14%00.0%Unchanged
Philadelphia Trust Co5,620$321.0K0.02%00.0%Unchanged
Endeavor Private Wealth, Inc.5,587$318.8K0.09%−149−2.6%Reduced
Procyon Private Wealth Partners, LLC5,553$316.9K0.02%+5,553New
William John Sempolinski5,539$316.1K0.16%+700+14.5%Added
Madison Park Capital Advisors, LLC5,500$313.9K0.25%00.0%Unchanged
Annis Gardner Whiting Capital Advisors, LLC5,450$311.0K0.05%+5,450New
Oak Family Advisors, LLC5,445$310.7K0.10%+8+0.1%Added
JustInvest LLC5,444$310.7K0.00%−186−3.3%Reduced
MBE Wealth Management, LLC5,426$309.7K0.13%+38+0.7%Added
Outlook Wealth Advisors, LLC5,420$309.3K0.07%+30+0.6%Added
Annex Advisory Services, LLC5,415$309.0K0.01%−845−13.5%Reduced
Quadrant Private Wealth Management, LLC5,400$308.2K0.05%00.0%Unchanged
Rockbridge Capital Management LLC5,381$307.1K0.21%00.0%Unchanged
BSW Wealth Partners5,376$306.8K0.04%00.0%Unchanged
Green Square Capital Advisors LLC5,346$305.1K0.03%+16+0.3%Added
Aptus Capital Advisors, LLC5,341$304.8K0.00%+101+1.9%Added
Parsons Capital Management Inc5,327$304.0K0.01%00.0%Unchanged
Visionary Wealth Advisors5,290$301.9K0.01%−330−5.9%Reduced
Claro Advisors LLC5,253$299.8K0.04%00.0%Unchanged
Citadel Advisors LLC5,246$299.4K0.00%−231,216−97.8%Reduced
Royal Harbor Partners, LLC5,195$296.5K0.10%00.0%Unchanged
Rollins Financial Advisors, LLC5,189$296.2K0.05%+5,189New
Dauntless Investment Group, LLC5,170$295.1K0.83%+5,170New
Fermata Advisors, LLC5,167$294.9K0.07%+1,023+24.7%Added
Somerset Trust Co5,120$292.2K0.09%00.0%Unchanged
Wick Capital Partners, LLC5,060$288.8K0.05%+28+0.6%Added
Ascent Wealth Partners, LLC5,015$286.2K0.03%00.0%Unchanged
De Lisle Partners LLP5,000$285.4K0.03%00.0%Unchanged
Sittner & Nelson, LLC5,000$285.4K0.10%00.0%Unchanged
Rockland Trust Co5,000$285.4K0.01%00.0%Unchanged
Intrepid Capital Management Inc5,000$285.4K0.11%00.0%Unchanged
Mission Wealth Management, LP5,000$285.4K0.01%00.0%Unchanged
Aspetuck Financial Management LLC5,000$285.4K0.20%+5,000New
Naviter Wealth, LLC4,950$282.5K0.04%00.0%Unchanged
Tyche Wealth Partners LLC4,947$282.3K0.04%+300+6.5%Added
O'Shaughnessy Asset Management, LLC4,936$281.7K0.00%−327−6.2%Reduced
Belpointe Asset Management LLC4,935$281.6K0.01%+4,935New
Fortis Capital Advisors, LLC4,935$281.6K0.04%+4,935New
Resources Investment Advisors, LLC.4,927$281.2K0.00%−1,305−20.9%Reduced
CIBC World Markets Inc.4,905$279.9K0.00%+4,905New
NBC Securities, Inc.4,881$278.6K0.02%+85+1.8%Added
Legacy Wealth Advisors, LLC4,855$277.1K0.14%00.0%Unchanged
Benjamin Edwards Inc4,845$276.5K0.00%−2,894−37.4%Reduced
Baldwin Brothers Inc4,796$273.7K0.02%00.0%Unchanged
Lodestone Wealth Management LLC4,794$273.6K0.11%+90+1.9%Added
Entrewealth, LLC4,756$271.4K0.12%00.0%Unchanged
WSFS Capital Management, LLC4,744$270.8K0.01%+20.0%Added
Strategic Wealth Partners, Ltd.4,728$269.8K0.02%00.0%Unchanged
Brian Low Financial Group, LLC4,728$269.8K0.18%00.0%Unchanged
Griffin Asset Management, Inc.4,620$263.6K0.03%−7,312−61.3%Reduced
Greenup Street Wealth Management LLC4,610$263.1K0.04%−41,567−90.0%Reduced
Elser Financial Planning, Inc4,687$259.9K0.01%+4,687New
Cedar Wealth Management, LLC4,546$259.4K0.08%+1,703+59.9%Added
Zhang Financial LLC4,543$259.3K0.01%00.0%Unchanged
Flow Traders U.S. LLC4,525$258.0K0.01%+4,525New
Wealth Advisors of Tampa Bay, LLC4,500$256.8K0.08%−400−8.2%Reduced
Phil A. Younker & Associates, Ltd.4,500$256.8K0.17%+4,500New
Hilltop Holdings Inc.4,498$256.6K0.02%−3,237−41.8%Reduced
NTV Asset Management LLC4,469$255.0K0.03%00.0%Unchanged
Avidian Wealth Solutions, LLC4,393$250.7K0.01%+4,393New
Independent Financial Group, LLC4,372$249.5K0.01%−7,595−63.5%Reduced
Ieq Capital, LLC4,333$247.3K0.00%−250−5.5%Reduced
Jaffetilchin Investment Partners, LLC4,328$247.0K0.01%−12−0.3%Reduced
Mattern Capital Management, LLC4,300$245.4K0.03%00.0%Unchanged
Evolve Private Wealth, LLC4,284$244.5K0.01%−945−18.1%Reduced