NYSE: MPLX
Mplx LP Stock Ownership - Who owns Mplx?

Insider buying vs selling

Have Mplx LP insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Molly R. BensonChief Legal Ofc Corp Sec2025-12-12306$54.85
$16.78kSell
Gregory Scott FloerkeExec. VP and COO2025-12-12242$54.85
$13.27kSell
Shawn M. LyonSenior VP Log. Storage2025-12-12245$54.85
$13.44kSell
Michael J. HenniganExecutive Chairman2025-12-121,335$54.85
$73.22kSell
Shawn M. LyonSenior VP Log. Storage2025-03-074,000$52.75
$211.00kBuy
Gregory Scott FloerkeExec. VP and COO2025-03-031,100$54.34
$59.77kSell
Carl Kristopher HagedornExec VP Chief Fin Ofc2025-03-03448$54.34
$24.34kSell
Carl Kristopher HagedornExec VP Chief Fin Ofc2025-03-03422$54.34
$22.93kSell
Carl Kristopher HagedornExec VP Chief Fin Ofc2025-03-03910$54.34
$49.45kSell
Michael J. HenniganExecutive Chairman2025-03-039,862$54.34
$535.90kSell

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Net Insider Buy/Sell (L12M) Ownership

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MPLX Shareholders

What type of owners hold Mplx LP stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Marathon Petroleum Corp63.66%647,415,452$34.73BInsider
Andeavor49.62%504,701,934$27.07BInsider
Markwest Hydrocarbon Inc7.81%79,466,136$4.26BInsider
Mplx Holdings Inc7.81%79,466,136$4.26BInsider
Alps Advisors Inc2.60%26,409,654$1.42BInstitution
Invesco Ltd1.92%19,561,938$1.05BInstitution
Blackstone Inc1.38%14,017,717$751.91MInstitution
Tortoise Capital Advisors LLC1.33%13,520,479$725.24MInstitution
Goldman Sachs Group Inc1.29%13,096,229$702.48MInstitution
Bank Of America Corp0.92%9,345,942$501.32MInstitution

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MPLX vs Oil & Gas Midstream Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
MPLX13.77%86.23%Net SellingNet Selling
ET30.24%51.89%Net BuyingNet Buying
TRP77.70%0.00%
KMI65.29%16.34%Net SellingNet Buying
OKE71.90%0.89%Net SellingNet Buying

Mplx Stock Ownership FAQ

Who owns Mplx?

Mplx (NYSE: MPLX) is owned by 20.64% institutional shareholders, 129.30% Mplx insiders, and 0.00% retail investors. Marathon Petroleum Corp is the largest individual Mplx shareholder, owning 647.42M shares representing 63.66% of the company. Marathon Petroleum Corp's Mplx shares are currently valued at $34.55B.

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