Marathon Petroleum Ownership | Who Owns Marathon Petroleum?

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Marathon Petroleum Ownership Summary

Marathon Petroleum is owned by 71.83% institutional investors, 0.32% insiders, and 27.85% 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	71.83%	0.32%	27.85%
Sector	Energy Stocks	79.37%	16.32%	4.32%
Industry	Oil & Gas Refining & Marketing Stocks	41.41%	8.52%	50.06%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	38.29M	12.81%	$6.23B
Blackrock funding, inc. /de	24.39M	8.16%	$5.96B
Blackrock	28.18M	7.77%	$4.89B
State street	19.03M	6.36%	$4.65B
Geode capital management	7.82M	2.62%	$1.90B
Morgan stanley	6.07M	2.03%	$1.48B
Raymond james financial	5.77M	1.93%	$1.41B
Boston partners	5.65M	1.89%	$1.38B
Wellington management group llp	5.64M	1.89%	$1.38B
Fmr	4.91M	1.64%	$1.20B

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Berry wealth group, lp	12.22K	11.15%	$2.98M
Praetorian pr	95.00K	8.44%	$23.20M
Mcintyre freedman & flynn investment advisers	47.90K	6.63%	$11.70M
Arrow capital pty	20.00K	4.90%	$4.90M
Greatmark investment partners	166.70K	4.77%	$40.70M
Sitrin capital management	37.23K	4.56%	$9.09M
Refined wealth management	24.99K	3.85%	$6.10M
Dcm advisors	33.23K	3.69%	$8.11M
Summit street capital management	105.14K	3.63%	$25.67M
Turn8 private wealth	23.31K	3.56%	$5.69M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	2.90M	0.05%	2.90M
Blackrock funding, inc. /de	24.39M	0.10%	1.97M
Vanguard fiduciary trust	1.66M	0.10%	1.66M
Fmr	4.91M	0.06%	1.44M
State street	19.03M	0.16%	1.09M

Top Sellers

Holder	Shares	% Assets	Change
Elliott investment management	-	-	-7.37M
Blackrock	28.18M	0.11%	-1.83M
Wellington management group llp	5.64M	0.26%	-1.57M
Qube research	137.26K	0.04%	-1.44M
Pacer advisors	-	-	-1.31M

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
Holocene advisors, lp	414.13K	0.24%	414.13K	$101.12M

Sold Out

Holder	Change
Ross\johnson & associates	-1.00
Sugar maple asset management	-1.00
Luken investment analytics	-3.00
Breakwater investment management	-3.00
Loring wolcott & coolidge fiduciary advisors llp/ma	-3.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	1,900	10.02%	214,763,999	-3.89%	71	1.29%	896	16.82%	661	13.97%
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%

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	9.39M	3.22%	27.98K
Cushing Midstream Strategy	8.82M	2.99%	286.50K
Vanguard 500 Index Investor	7.65M	2.62%	137.44K
State Street®EngySelSectSPDR®ETF	6.68M	2.29%	59.88K
Vanguard Mid Cap Index Institutional	6.38M	2.19%	13.89K
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
May 13, 2026	Hessling Ricky D.	Chief Commercial Officer	Sell	$250.00K
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 12, 2026	Hessling Ricky D.	Chief Commercial Officer	Sell	$108.98K
Mar 11, 2026	Hessling Ricky D.	Chief Commercial Officer	Sell	$333.40K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	1
2026 Q1	-	6
2025 Q4	-	-
2025 Q3	-	2
2025 Q2	-	-

MPC Ownership FAQ

Who Owns Marathon Petroleum?

Marathon Petroleum shareholders are primarily institutional investors at 71.83%, followed by 0.32% insiders and 27.85% retail investors. The average institutional ownership in Marathon Petroleum's industry, Oil & Gas Refining & Marketing Stocks, is 41.41%, 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 (24.39M shares, 8.16%), and Blackrock (28.18M shares, 7.77%). Together, they hold 28.73% 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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