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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, Q3 2025

Institutional positions in MPLX LP as of Sep 30, 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
576
+9 vs. Q2 2025
Shares held
210.1M
−6.52M (−3.0%) vs. Q2 2025
Total value
$10.5B
−$645.3M (−5.8%) vs. Q2 2025
New holders
54
221 more added
Sold out
45
123 more reduced

8 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2025: 576 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 heldQ3 2025: $10.5B
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, Q3 2025

Shares, value and share of portfolio for each institution holding MPLX LP; share changes are against Q2 2025.

Institutions holding MPLX in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Crewe Advisors LLC2,167$108.3K0.01%+40+1.9%Added
Private Trust Co NA2,000$99.9K0.01%00.0%Unchanged
Anfield Capital Management, LLC1,801$90.0K0.03%−1,800−50.0%Reduced
Cary Street Partner Investment Advisory LLC1,800$89.9K0.04%+1,800New
Gen-Wealth Partners Inc1,755$87.7K0.03%+1,625+1,250.0%Added
Russell Investments Group, Ltd.1,623$81.1K0.00%00.0%Unchanged
JFS Wealth Advisors, LLC1,620$80.9K0.00%+1,620New
HM Payson & Co1,563$78.1K0.00%00.0%Unchanged
Fifth Third Bancorp1,499$74.9K0.00%−1,666−52.6%Reduced
Citizens National Bank Trust Department1,465$73.2K0.01%00.0%Unchanged
Central Trust Co1,457$72.8K0.00%00.0%Unchanged
Montag A & Associates Inc1,421$71.0K0.00%00.0%Unchanged
Avalon Trust Co1,387$69.3K0.00%00.0%Unchanged
McIlrath & Eck, LLC1,377$68.8K0.01%+1,377New
First Horizon Corp1,315$65.7K0.00%+1,315New
Creative Financial Designs Inc1,260$62.9K0.00%00.0%Unchanged
Aventura Private Wealth, LLC1,243$62.1K0.02%00.0%Unchanged
Trust Co1,235$61.7K0.01%00.0%Unchanged
Heritage Wealth Advisors1,208$60.3K0.00%+7+0.6%Added
Geneos Wealth Management Inc.1,135$56.7K0.00%00.0%Unchanged
Fortitude Family Office, LLC1,009$50.4K0.01%00.0%Unchanged
Harbor Investment Advisory, LLC1,000$50.0K0.00%00.0%Unchanged
MCF Advisors LLC1,000$50.0K0.00%00.0%Unchanged
WFA of San Diego, LLC1,000$50.0K0.03%00.0%Unchanged
Atlantic Private Wealth, LLC1,000$50.0K0.03%00.0%Unchanged
Quent Capital, LLC847$42.3K0.00%+847New
Root Financial Partners, LLC778$38.9K0.00%+778New
Wiser Advisor Group LLC755$37.7K0.05%+755New
Trust Co of Toledo NA750$37.5K0.00%00.0%Unchanged
Clear Investment Research, LLC700$35.0K0.05%00.0%Unchanged
Tanglewood Legacy Advisors, LLC696$34.8K0.01%00.0%Unchanged
VSM Wealth Advisory, LLC686$34.3K0.01%−303−30.6%Reduced
Chilton Capital Management LLC650$32.5K0.00%−195−23.1%Reduced
Caldwell Trust Co635$31.7K0.00%00.0%Unchanged
Rossby Financial, LCC621$30.9K0.01%00.0%Unchanged
EverSource Wealth Advisors, LLC613$30.6K0.00%−266−30.3%Reduced
Operose Advisors LLC585$29.2K0.01%00.0%Unchanged
FSA Wealth Management LLC532$26.6K0.01%00.0%Unchanged
Trust Co of Vermont500$25.0K0.00%00.0%Unchanged
Private Wealth Asset Management, LLC500$25.0K0.00%00.0%Unchanged
Solstein Capital, LLC500$25.0K0.01%+500New
Ramirez Asset Management, Inc.450$22.5K0.00%00.0%Unchanged
Wellington Shields & Co., LLC400$20.0K0.01%+400New
Pacifica Partners Inc.400$19.9K0.01%00.0%Unchanged
Concord Wealth Partners389$19.4K0.00%00.0%Unchanged
Assetmark, Inc341$17.0K0.00%00.0%Unchanged
Archer Investment Corp341$17.0K0.00%+7+2.1%Added
C M Bidwell & Associates Ltd326$16.3K0.01%−326−50.0%Reduced
Wolff Wiese Magana LLC317$15.8K0.01%+113+55.4%Added
Key Financial Inc300$14.9K0.00%+300New
Sunbelt Securities, Inc.280$14.0K0.00%+280New
Darwin Advisors, LLC240$12.0K0.00%00.0%Unchanged
Financial Network Wealth Advisors LLC208$10.4K0.01%+1+0.5%Added
Country Trust Bank200$9.99K0.00%−100−33.3%Reduced
Mark Sheptoff Financial Planning, LLC200$9.99K0.00%00.0%Unchanged
HHM Wealth Advisors, LLC200$9.99K0.00%+200New
Atlantic Union Bankshares Corp194$9.69K0.00%+194New
Vision Financial Markets LLC128$6.36K0.01%+3+2.4%Added
Ronald Blue Trust, Inc.125$6.24K0.00%−484−79.5%Reduced
Cloud Capital Management, LLC135$6.00K0.00%+135New
Costello Asset Management, INC104$5.20K0.00%00.0%Unchanged
Optimum Investment Advisors100$5.00K0.00%00.0%Unchanged
Grove Bank & Trust100$5.00K0.00%00.0%Unchanged
Measured Wealth Private Client Group, LLC100$5.00K0.00%+100New
Strategic Investment Solutions, Inc.100$5.00K0.00%+100New
JPL Wealth Management, LLC100$5.00K0.00%+100New
Kozak & Associates, Inc.94$4.95K0.00%+4+4.4%Added
Center for Financial Planning, Inc.85$4.25K0.00%00.0%Unchanged
Penserra Capital Management LLC87$4.00K0.00%00.0%Unchanged
Wealth Preservation Advisors, LLC40$2.00K0.00%00.0%Unchanged
Plante Moran Financial Advisors, LLC25$1.25K0.00%00.0%Unchanged
TD Private Client Wealth LLC23$1.15K0.00%−67−74.4%Reduced
Investors Research Corp20$9990.00%00.0%Unchanged
Abound Wealth Management16$8170.00%00.0%Unchanged
DHJJ Financial Advisors, Ltd.10$5000.00%+10New
Mountain Hill Investment Partners Corp.2$1030.00%00.0%Unchanged
Citadel Advisors LLC0$00.00%−216,419−100.0%Sold out
Corigliano Investment Advisers, LLC0$00.00%−75,000−100.0%Sold out
Counterpoint Mutual Funds LLC0$00.00%−36,767−100.0%Sold out
Anthracite Investment Company, Inc.0$00.00%−30,000−100.0%Sold out
Custom Index Systems, LLC0$00.00%−19,116−100.0%Sold out
Virtu Financial LLC0$00.00%−18,680−100.0%Sold out
Geode Capital Management, LLC0$00.00%−16,557−100.0%Sold out
McDonald Partners LLC0$00.00%−16,248−100.0%Sold out
Morningstar Investment Management LLC0$00.00%−14,610−100.0%Sold out
Franklin Resources Inc0$00.00%−12,920−100.0%Sold out
Bleakley Financial Group, LLC0$00.00%−10,675−100.0%Sold out
Sowell Financial Services LLC0$00.00%−8,814−100.0%Sold out
Requisite Capital Management, LLC0$00.00%−8,698−100.0%Sold out
Toroso Investments, LLC0$00.00%−7,395−100.0%Sold out
Integrity Alliance, LLC.0$00.00%−7,031−100.0%Sold out
Financial Advocates Investment Management0$00.00%−7,027−100.0%Sold out
Frisch Financial Group, Inc.0$00.00%−6,098−100.0%Sold out
Douglass Winthrop Advisors, LLC0$00.00%−5,800−100.0%Sold out
Mainstay Capital Management LLC0$00.00%−5,548−100.0%Sold out
Verdence Capital Advisors LLC0$00.00%−5,205−100.0%Sold out
Nova R Wealth, Inc.0$00.00%−4,691−100.0%Sold out
Vivaldi Asset Management, LLC0$00.00%−4,262−100.0%Sold out
L.M. Kohn & Company0$00.00%−4,236−100.0%Sold out
ARK & TLK Investments, LLC0$00.00%−4,129−100.0%Sold out