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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
Tiaa Trust, National Association3,104$177.1K0.01%+3,104New
Rowland & Co Investment Counsel3,114$177.7K0.04%−1,627−34.3%Reduced
SOA Wealth Advisors, LLC.3,191$182.1K0.03%00.0%Unchanged
Virtus Investment Advisers, Inc.3,210$183.2K0.05%+185+6.1%Added
Nemes Rush Group LLC3,264$186.3K0.02%+131+4.2%Added
Ancora Advisors, LLC3,327$189.9K0.00%00.0%Unchanged
Sound Income Strategies, LLC3,432$191.9K0.01%−314−8.4%Reduced
Arlington Trust Co LLC3,300$194.6K0.02%00.0%Unchanged
Colonial Trust Co3,492$199.3K0.03%00.0%Unchanged
Thrivent Financial for Lutherans3,519$201.0K0.00%+3,519New
Vista Investment Partners LLC3,529$201.4K0.05%+3,529New
Nova R Wealth, Inc.3,590$204.9K0.07%+3,590New
Naples Global Advisors, LLC3,600$205.5K0.01%+3,600New
Requisite Capital Management, LLC3,642$207.8K0.04%+3,642New
Ascent Group, LLC3,650$208.3K0.01%+3,650New
Waterloo Capital, L.P.3,662$209.0K0.01%+3,662New
Plan Group Financial, LLC3,674$209.7K0.05%+3,674New
Stonebridge Financial Group, LLC3,691$210.6K0.18%−1,309−26.2%Reduced
ETF Portfolio Partners, Inc.3,692$210.7K0.06%+3,692New
Adirondack Trust Co3,700$211.1K0.07%00.0%Unchanged
Principal Securities, Inc.3,705$211.5K0.00%+3,705New
Vivaldi Asset Management, LLC3,754$214.2K0.01%00.0%Unchanged
MinichMacGregor Wealth Management, LLC3,758$214.5K0.04%−107−2.8%Reduced
Douglass Winthrop Advisors, LLC3,800$216.9K0.00%00.0%Unchanged
Balboa Wealth Partners3,821$218.1K0.04%00.0%Unchanged
Founders Financial Alliance, LLC3,830$218.6K0.04%+3,830New
Hanover Advisors Inc3,832$218.7K0.09%+3,832New
Kingswood Wealth Advisors, LLC3,837$219.0K0.01%+3,837New
Panoramic Investment Advisors, LLC3,877$221.3K0.12%−80−2.0%Reduced
Huntington National Bank3,890$222.0K0.00%+90+2.4%Added
Teamwork Financial Advisors, LLC3,910$223.1K0.02%00.0%Unchanged
MONECO Advisors, LLC3,967$226.4K0.02%−146−3.5%Reduced
Second Line Capital, LLC4,053$228.1K0.04%+10.0%Added
XML Financial, LLC4,000$228.3K0.02%+4,000New
Cyndeo Wealth Partners, LLC4,015$229.1K0.01%+4,015New
Welch & Forbes LLC4,029$229.9K0.00%00.0%Unchanged
Clearstead Advisors, LLC4,038$230.4K0.00%00.0%Unchanged
Shepherd Financial Partners LLC4,042$230.7K0.02%+74+1.9%Added
RSM US Wealth Management LLC4,049$231.1K0.00%+208+5.4%Added
HFG Advisors, Inc.4,050$231.1K0.16%00.0%Unchanged
Archford Capital Strategies, LLC4,107$234.4K0.03%00.0%Unchanged
Thoroughbred Financial Services, LLC4,173$238.0K0.01%+4,173New
North Star Investment Management Corp.4,189$239.1K0.01%+4,189New
Stillwater Wealth Management Group4,200$239.7K0.15%−500−10.6%Reduced
SeaCrest Wealth Management, LLC4,250$242.5K0.03%+4,250New
Wealth Alliance Advisory Group, LLC4,270$243.7K0.04%+4,270New
Evolve Private Wealth, LLC4,284$244.5K0.01%−945−18.1%Reduced
Mattern Capital Management, LLC4,300$245.4K0.03%00.0%Unchanged
Jaffetilchin Investment Partners, LLC4,328$247.0K0.01%−12−0.3%Reduced
Ieq Capital, LLC4,333$247.3K0.00%−250−5.5%Reduced
Independent Financial Group, LLC4,372$249.5K0.01%−7,595−63.5%Reduced
Avidian Wealth Solutions, LLC4,393$250.7K0.01%+4,393New
NTV Asset Management LLC4,469$255.0K0.03%00.0%Unchanged
Hilltop Holdings Inc.4,498$256.6K0.02%−3,237−41.8%Reduced
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
Flow Traders U.S. LLC4,525$258.0K0.01%+4,525New
Zhang Financial LLC4,543$259.3K0.01%00.0%Unchanged
Cedar Wealth Management, LLC4,546$259.4K0.08%+1,703+59.9%Added
Elser Financial Planning, Inc4,687$259.9K0.01%+4,687New
Greenup Street Wealth Management LLC4,610$263.1K0.04%−41,567−90.0%Reduced
Griffin Asset Management, Inc.4,620$263.6K0.03%−7,312−61.3%Reduced
Strategic Wealth Partners, Ltd.4,728$269.8K0.02%00.0%Unchanged
Brian Low Financial Group, LLC4,728$269.8K0.18%00.0%Unchanged
WSFS Capital Management, LLC4,744$270.8K0.01%+20.0%Added
Entrewealth, LLC4,756$271.4K0.12%00.0%Unchanged
Lodestone Wealth Management LLC4,794$273.6K0.11%+90+1.9%Added
Baldwin Brothers Inc4,796$273.7K0.02%00.0%Unchanged
Benjamin Edwards Inc4,845$276.5K0.00%−2,894−37.4%Reduced
Legacy Wealth Advisors, LLC4,855$277.1K0.14%00.0%Unchanged
NBC Securities, Inc.4,881$278.6K0.02%+85+1.8%Added
CIBC World Markets Inc.4,905$279.9K0.00%+4,905New
Resources Investment Advisors, LLC.4,927$281.2K0.00%−1,305−20.9%Reduced
Belpointe Asset Management LLC4,935$281.6K0.01%+4,935New
Fortis Capital Advisors, LLC4,935$281.6K0.04%+4,935New
O'Shaughnessy Asset Management, LLC4,936$281.7K0.00%−327−6.2%Reduced
Tyche Wealth Partners LLC4,947$282.3K0.04%+300+6.5%Added
Naviter Wealth, LLC4,950$282.5K0.04%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
De Lisle Partners LLP5,000$285.4K0.03%00.0%Unchanged
Ascent Wealth Partners, LLC5,015$286.2K0.03%00.0%Unchanged
Wick Capital Partners, LLC5,060$288.8K0.05%+28+0.6%Added
Somerset Trust Co5,120$292.2K0.09%00.0%Unchanged
Fermata Advisors, LLC5,167$294.9K0.07%+1,023+24.7%Added
Dauntless Investment Group, LLC5,170$295.1K0.83%+5,170New
Rollins Financial Advisors, LLC5,189$296.2K0.05%+5,189New
Royal Harbor Partners, LLC5,195$296.5K0.10%00.0%Unchanged
Citadel Advisors LLC5,246$299.4K0.00%−231,216−97.8%Reduced
Claro Advisors LLC5,253$299.8K0.04%00.0%Unchanged
Visionary Wealth Advisors5,290$301.9K0.01%−330−5.9%Reduced
Parsons Capital Management Inc5,327$304.0K0.01%00.0%Unchanged
Aptus Capital Advisors, LLC5,341$304.8K0.00%+101+1.9%Added
Green Square Capital Advisors LLC5,346$305.1K0.03%+16+0.3%Added
BSW Wealth Partners5,376$306.8K0.04%00.0%Unchanged
Rockbridge Capital Management LLC5,381$307.1K0.21%00.0%Unchanged
Quadrant Private Wealth Management, LLC5,400$308.2K0.05%00.0%Unchanged