MPLX Ownership | Who Owns MPLX?


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MPLX Ownership Summary


MPLX is owned by 19.29% institutional investors, 64.03% insiders, and 16.68% retail investors. Alps advisors is the largest institutional shareholder, holding 2.81% of MPLX shares. Cushing Midstream Strategy is the top mutual fund, with 19.02% of its assets in MPLX shares.

MPLX Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockMPLX19.29%64.03%16.68%
SectorEnergy Stocks 63.45%15.53%21.02%
IndustryOil & Gas Midstream Stocks 49.63%18.82%31.55%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Alps advisors28.60M2.81%$1.61B
Invesco18.27M1.80%$1.03B
Blackstone12.96M1.27%$729.86M
Goldman sachs group11.33M1.11%$638.18M
Tortoise capital advisors10.50M1.03%$591.49M
Mirae asset global etfs8.01M0.79%$451.29M
Kayne anderson capital advisors lp5.86M0.58%$330.26M
Energy income partners5.38M0.53%$303.07M
Morgan stanley5.28M0.52%$297.19M
Ubs group5.26M0.52%$296.25M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Ppm america inc/il87.20K32.61%$4.91M
Heronetta management324.04K16.76%$18.25M
Fractal investments1.67M10.84%$93.96M
Chickasaw capital management5.21M10.56%$293.58M
Walnut private equity partners268.00K8.46%$15.66M
Alps advisors28.60M7.55%$1.61B
Belfer management7.83K7.31%$441.02K
Amplify investments8.62K6.71%$485.56K
Longfellow investment management579.45K6.67%$32.64M
Kayne anderson capital advisors lp5.86M6.48%$330.26M

Top Buyers

HolderShares% AssetsChange
Alps advisors28.60M7.55%1.53M
Hrt financial lp821.05K0.08%748.11K
Mirae asset global etfs8.01M0.54%692.33K
Srs capital advisors596.04K0.22%594.31K
Mizuho markets americas575.00K0.51%575.00K

Top Sellers

HolderShares% AssetsChange
Kingstone capital partners texas---15.08M
Mirae asset global investments---5.96M
Tortoise capital advisors10.50M6.01%-2.76M
Blackstone12.96M2.22%-2.39M
Bank of montreal /can/2.55M0.05%-1.48M

New Positions

HolderShares% AssetsChangeValue
Mizuho markets americas575.00K0.51%575.00K$32.39M
Recurrent investment advisors544.71K1.90%544.71K$30.68M
Treasurer of the state of north carolina127.72K0.02%127.72K$7.20M
Group one trading72.90K0.01%72.90K$4.11B
Caption management48.80K0.03%48.80K$2.08M

Sold Out

HolderChange
Transce3nd-1.00
Ridgewood investments-12.00
Abich financial wealth management-60.00
Truvestments capital-62.00
Wealth preservation advisors-80.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 2026645-1.53%196,186,253-3.26%194.85%3002.74%150-15.25%
Mar 31, 2026416-34.38%74,000,016-58.48%72.37%184-43.56%106-18.46%
Dec 31, 2025475-19.08%89,056,931-58.14%82.01%233-15.88%94-22.31%
Sep 30, 2025562-3.93%209,440,684-1.44%204.73%265-4.33%116-12.12%
Jun 30, 20255872.26%232,075,3096.51%224.99%2760.36%1364.62%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Cushing Midstream Strategy193.00M19.02%4.43M
Alerian MLP ETF28.07M2.77%5.18K
Invesco SteelPath MLP Income Y11.30M1.11%50.00K
Kayne Anderson Energy Infrastructure Fund, Inc6.16M0.60%-
Kayne Anderson Energy Infrastructure5.75M0.57%-
Tortoise Midstream MLP Separate Accounts5.73M0.56%4.17M
Global X MLP ETF4.88M0.48%7.70K
Goldman Sachs MLP Energy Infras Instl3.67M0.36%-72.92K
Tortoise Energy Infrastructure Inst Comp3.50M0.34%92.03K
Tortoise Strategic Midsteam Composite3.41M0.33%-259.51K

Recent Insider Transactions


DateNameRoleActivityValue
Mar 07, 2025Lyon Shawn M Senior VP, Log. & StorageBuy$211.00K
Nov 18, 2024HAGEDORN CARL KRISTOPHER Exec VP & Chief Fin OfcSell$188.96K
Apr 19, 2022Floerke Gregory Scott Exec. VP and COOSell$87.50K
Feb 07, 2022Floerke Gregory Scott Exec. VP and COOSell$83.00K
Feb 02, 2022SEMPLE FRANK M-Sell$952.00K

Insider Transactions Trends


DateBuySell
2026 Q2--
2026 Q1--
2025 Q4--
2025 Q3--
2025 Q2--

MPLX Ownership FAQ


Who Owns MPLX?

MPLX shareholders are primarily institutional investors at 19.29%, followed by 64.03% insiders and 16.68% retail investors. The average institutional ownership in MPLX's industry, Oil & Gas Midstream Stocks , is 49.63%, which MPLX falls below.

Who owns the most shares of MPLX?

MPLX’s largest shareholders are Alps advisors (28.6M shares, 2.81%), Invesco (18.27M shares, 1.80%), and Blackstone (12.96M shares, 1.27%). Together, they hold 5.88% of MPLX’s total shares outstanding.

Does Blackrock own MPLX?

BlackRock is not among the top 10 institutional shareholders of MPLX.

Who is MPLX’s biggest shareholder by percentage of total assets invested?

Ppm america inc/il is MPLX’s biggest shareholder by percentage of total assets invested, with 32.61% of its assets in 87.2K MPLX shares, valued at 4.91M$.

Who is the top mutual fund holder of MPLX shares?

Cushing Midstream Strategy is the top mutual fund holder of MPLX shares, with 19.02% of its total shares outstanding invested in 193M MPLX shares.

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