Marathon Petroleum Ownership | Who Owns Marathon Petroleum?

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Marathon Petroleum Ownership Summary

Marathon Petroleum is owned by 19.39% institutional investors, 0.28% insiders, and 80.33% retail investors. Vanguard group is the largest institutional shareholder, holding 12.81% of MPC shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.39% of its assets in Marathon Petroleum shares.

MPC Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Marathon Petroleum	19.39%	0.28%	80.33%
Sector	Energy Stocks	147.72%	15.00%	-62.72%
Industry	Oil & Gas Refining & Marketing Stocks	31.60%	13.63%	54.77%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	38.29M	12.81%	$6.23B
Blackrock	28.18M	7.77%	$4.89B
Blackrock funding, inc. /de	22.43M	7.50%	$3.65B
State street	17.89M	5.79%	$3.45B
Wellington management group llp	9.37M	3.03%	$1.81B
Geode capital management	7.77M	2.60%	$1.26B
Boston partners	6.31M	2.04%	$1.21B
Morgan stanley	6.08M	1.99%	$989.42M
Raymond james financial	6.02M	1.95%	$1.16B
Fmr	4.09M	1.32%	$787.74M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Berry wealth group, lp	12.22K	11.15%	$2.98M
Praetorian pr	70.00K	8.11%	$13.49M
Mcintyre freedman & flynn investment advisers	48.41K	4.94%	$7.87M
Greatmark investment partners	166.70K	4.77%	$40.70M
Sitrin capital management	37.23K	4.56%	$9.09M
Empyrean capital partners, lp	562.50K	4.35%	$108.42M
Recurrent investment advisors	280.86K	4.15%	$54.13M
Arrow capital pty	25.00K	3.90%	$7.28M
Refined wealth management	24.99K	3.85%	$6.10M
Turn8 private wealth	23.31K	3.56%	$5.69M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	2.90M	0.05%	2.90M
Vanguard fiduciary trust	1.66M	0.10%	1.66M
Capital wealth planning	1.50M	1.59%	1.50M
Two sigma investments, lp	932.80K	0.27%	775.58K
Fmr	4.09M	0.04%	734.94K

Top Sellers

Holder	Shares	% Assets	Change
Elliott investment management	-	-	-7.37M
Wellington management group llp	9.37M	0.32%	-2.31M
Blackrock	28.18M	0.11%	-1.83M
Pacer advisors	-	-	-1.31M
Nomura	36.12K	0.01%	-1.26M

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	2.90M	0.05%	2.90M	$472.31M
Vanguard fiduciary trust	1.66M	0.10%	1.66M	$405.56M
Vanguard global advisers	701.10K	0.09%	701.10K	$171.20M
Vanguard asset management	568.37K	0.12%	568.37K	$138.78M
Renaissance	177.90K	0.04%	177.90K	$28.93M

Sold Out

Holder	Change
Ross\johnson & associates	-1.00
Sugar maple asset management	-1.00
Loring wolcott & coolidge fiduciary advisors llp/ma	-3.00
Riggs asset managment	-4.00
Blume capital management	-4.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	829	-51.46%	57,982,186	-73.62%	19	0.38%	339	-50.15%	298	-52.09%
Sep 30, 2025	1,003	-37.86%	73,065,936	-68.45%	23	0.42%	402	-40.71%	367	-37.90%
Jun 30, 2025	1,586	0.13%	230,709,160	-0.87%	74	1.35%	668	6.37%	581	-7.63%
Mar 31, 2025	1,566	-1.20%	232,018,286	-1.64%	74	1.36%	624	-0.79%	620	-3.58%
Dec 31, 2024	1,426	-11.65%	205,396,931	-12.58%	62	1.23%	562	-11.36%	574	-5.28%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	10.60M	3.39%	-555.40K
Vanguard Total Stock Mkt Idx Inv	9.36M	3.18%	-143.97K
Cushing Midstream Strategy	8.82M	2.99%	286.50K
Vanguard 500 Index Investor	7.51M	2.55%	-222.47K
State Street®EngySelSectSPDR®ETF	6.68M	2.29%	59.88K
Vanguard Mid Cap Index Institutional	6.37M	2.16%	-166.34K
The Energy Select Sector SPDR® ETF	5.97M	1.96%	983.00
iShares Core S&P 500 ETF	3.82M	1.31%	11.18K
Fidelity 500 Index	3.77M	1.29%	-58.16K
SPDR® S&P 500 ETF	3.93M	1.26%	-127.78K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Mar 13, 2026	Hessling Ricky D.	Chief Commercial Officer	Sell	$371.02K
Mar 11, 2026	Hessling Ricky D.	Chief Commercial Officer	Sell	$73.45K
Mar 11, 2026	Hessling Ricky D.	Chief Commercial Officer	Sell	$333.40K
Mar 12, 2026	Hessling Ricky D.	Chief Commercial Officer	Sell	$108.98K
Mar 12, 2026	Hessling Ricky D.	Chief Commercial Officer	Sell	$128.57K

Insider Transactions Trends

Date	Buy	Sell
2026 Q1	-	5
2025 Q4	-	-
2025 Q3	-	2
2025 Q2	-	-
2025 Q1	2	-

MPC Ownership FAQ

Who Owns Marathon Petroleum?

Marathon Petroleum shareholders are primarily institutional investors at 19.39%, followed by 0.28% insiders and 80.33% retail investors. The average institutional ownership in Marathon Petroleum's industry, Oil & Gas Refining & Marketing Stocks, is 31.60%, which Marathon Petroleum falls below.

Who owns the most shares of Marathon Petroleum?

Marathon Petroleum’s largest shareholders are Vanguard group (38.29M shares, 12.81%), Blackrock (28.18M shares, 7.77%), and Blackrock funding, inc. /de (22.43M shares, 7.50%). Together, they hold 28.07% 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?

Berry wealth group, lp is Marathon Petroleum’s biggest shareholder by percentage of total assets invested, with 11.15% of its assets in 12.22K Marathon Petroleum shares, valued at 2.98M$.

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

Vanguard US Total Market Shares ETF is the top mutual fund holder of Marathon Petroleum shares, with 3.39% of its total shares outstanding invested in 10.6M Marathon Petroleum shares.

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