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Marathon Petroleum Ownership | Who Owns Marathon Petroleum?

OverviewForecastRevenueFinancialsChartTranscripts

Marathon Petroleum Ownership Summary

Marathon Petroleum is owned by 74.91% institutional investors, 0.33% insiders, and 24.76% retail investors. Vanguard group is the largest institutional shareholder, holding 12.81% of MPC shares. Cushing Midstream Strategy is the top mutual fund, with 4.90% of its assets in Marathon Petroleum shares.

MPC Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockMarathon Petroleum74.91%0.33%24.76%
SectorEnergy Stocks 63.70%15.53%20.77%
IndustryOil & Gas Refining & Marketing Stocks61.40%11.10%27.50%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Vanguard group38.29M12.81%$6.23B
Blackrock funding, inc. /de26.01M8.82%$6.65B
Blackrock28.18M7.77%$4.89B
Vanguard capital management19.07M6.47%$4.88B
State street18.47M6.26%$4.72B
Geode capital management8.35M2.83%$2.13B
Morgan stanley5.89M2.00%$1.51B
Raymond james financial5.68M1.93%$1.45B
Fmr5.42M1.84%$1.39B
Bank of new york mellon4.03M1.37%$1.03B

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Praetorian pr135.00K11.00%$34.52M
Berry wealth group, lp12.22K10.04%$3.12M
Mcintyre freedman & flynn investment advisers33.72K5.17%$8.62M
Greatmark investment partners161.65K4.56%$41.33M
Sitrin capital management36.70K4.16%$9.38M
Refined wealth management24.22K3.74%$6.19M
Swisspartners advisors20.57K3.54%$5.25M
Summit street capital management97.76K3.51%$24.99M
Turn8 private wealth18.47K3.46%$5.19M
Dcm advisors34.18K3.45%$8.74M

Top Buyers

HolderShares% AssetsChange
Sixth street partners management company2.62M0.09%2.62M
Norges bank2.47M0.06%2.47M
Blackrock funding, inc. /de26.01M0.10%1.61M
Victory capital management1.02M0.15%593.53K
American century companies716.27K0.08%561.83K

Top Sellers

HolderShares% AssetsChange
Elliott investment management---7.37M
Harris associates l p229.01K0.08%-2.58M
Wellington management group llp3.25M0.14%-2.39M
Boston partners3.52M0.80%-2.13M
Blackrock28.18M0.11%-1.83M

New Positions

HolderShares% AssetsChangeValue
Sixth street partners management company2.62M0.09%2.62M$670.50M
Norges bank2.47M0.06%2.47M$630.43M
Lazard asset management254.81K0.10%254.81K$65.15M
Hrt financial lp173.51K0.08%173.51K$44.36M
Flat footed75.00K1.22%75.00K$13.01M

Sold Out

HolderChange
Sugar maple asset management-1.00
Luken investment analytics-3.00
Loring wolcott & coolidge fiduciary advisors llp/ma-3.00
Breakwater investment management-3.00
Riggs asset managment-4.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 20261,9871.69%220,974,855-0.31%741.33%842-8.97%7165.14%
Mar 31, 20261,90010.02%214,763,999-3.89%711.29%89616.82%66113.97%
Dec 31, 2025829-51.46%57,982,186-73.62%190.38%339-50.15%298-52.09%
Sep 30, 20251,003-37.86%73,065,936-68.45%230.42%402-40.71%367-37.90%
Jun 30, 20251,5860.13%230,709,160-0.87%741.35%6686.37%581-7.63%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
Cushing Midstream Strategy14.30M4.90%327.85K
Vanguard US Total Market Shares ETF10.60M3.39%-555.40K
Vanguard MStar Total Stk Mkt Idx Invest9.30M3.31%26.38K
Vanguard Total Stock Mkt Idx Inv9.27M3.18%-111.77K
Vanguard Morn Total Stk Mkt Idx Investor9.27M3.18%-111.77K
Vanguard 500 Index Investor7.66M2.73%80.65K
Vanguard MStar Mid Cap Index Instl6.32M2.25%-8.49K
State Street®EngySelSectSPDR®ETF6.12M2.18%26.97K
Vanguard Mid Cap Index Institutional6.33M2.17%-68.02K
Vanguard Morn Mid Cap Index Instl6.33M2.17%-68.02K

Recent Insider Transactions

DateNameRoleActivityValue
Aug 17, 2026Benson Molly R Chief Legal Ofc & Corp SecSell$1.79M
Aug 13, 2026Lyon Shawn M SVP Log & Storage, MPLX GP LLCSell$875.00K
Aug 12, 2026Henschen Michael A II Ex VP, RefiningSell$2.05M
Jun 04, 2026Henschen Michael A II Ex VP, RefiningSell$1.33M
Jun 04, 2026Henschen Michael A II Ex VP, RefiningSell$368.73K

Insider Transactions Trends

DateBuySell
2026 Q3-3
2026 Q2-3
2026 Q1-6
2025 Q4--
2025 Q3-2

MPC Ownership FAQ

Who Owns Marathon Petroleum?

Marathon Petroleum shareholders are primarily institutional investors at 74.91%, followed by 0.33% insiders and 24.76% retail investors. The average institutional ownership in Marathon Petroleum's industry, Oil & Gas Refining & Marketing Stocks, is 61.40%, which Marathon Petroleum exceeds.

Who owns the most shares of Marathon Petroleum?

Marathon Petroleum’s largest shareholders are Vanguard group (38.29M shares, 12.81%), Blackrock funding, inc. /de (26.01M shares, 8.82%), and Blackrock (28.18M shares, 7.77%). Together, they hold 29.39% of Marathon Petroleum’s total shares outstanding.

Does Blackrock own Marathon Petroleum?

Yes, BlackRock owns 7.77% of Marathon Petroleum, totaling 28.18M shares as of Jun 2024. This represents 0.11% of BlackRock's total assets, with a market value of 4.89B$. In the last quarter, BlackRock decreased its holdings by -1.828M shares, a -6.09% change.

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

Praetorian pr is Marathon Petroleum’s biggest shareholder by percentage of total assets invested, with 11.00% of its assets in 135K Marathon Petroleum shares, valued at 34.52M$.

Who is the top mutual fund holder of Marathon Petroleum shares?

Cushing Midstream Strategy is the top mutual fund holder of Marathon Petroleum shares, with 4.90% of its total shares outstanding invested in 14.3M Marathon Petroleum shares.

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