Marathon Petroleum Corp

MPC

Exchange: NYSE
Industry: Petroleum Refining
SEC CIK: 0001510295

SEC filings (opens in a new tab)

In the last 90 days, Marathon Petroleum Corp insiders filed 0 open-market purchases and 5 sales; 1,953 institutions reported holding it in 13F filings for Q2 2026, worth $56.0B in total; Harris Associates (Oakmark) is the only superinvestor holding it.

13F holders, Q3 2025

Institutional positions in Marathon Petroleum Corp as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders: 1,661; +118 vs. Q2 2025
Shares held: 220.0M; −8.99M (−3.9%) vs. Q2 2025
Total value: $42.4B; +$4.43B (+11.7%) vs. Q2 2025
New holders: 196; 498 more added
Sold out: 78; 622 more reduced

28 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MPC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 1,661 institutions

Value heldQ3 2025: $42.4B

Institutions holding MPC and their total value by quarter
Quarter	Holders	Value
Q2 2026	1,953	$56.0B
Q1 2026	1,896	$53.9B
Q4 2025	1,679	$36.4B
Q3 2025	1,661	$42.4B
Q2 2025	1,571	$38.5B
Q1 2025	1,563	$33.7B
Q4 2024	1,561	$32.4B
Q3 2024	1,582	$38.9B
Q2 2024	1,652	$43.4B
Q1 2024	1,691	$52.7B
Q4 2023	1,553	$41.1B
Q3 2023	1,475	$43.8B
Q2 2023	1,355	$35.4B
Q1 2023	1,441	$44.3B
Q4 2022	1,390	$40.9B
Q3 2022	1,293	$36.1B
Q2 2022	1,234	$32.3B
Q1 2022	1,185	$36.1B
Q4 2021	1,098	$28.9B
Q3 2021	1,008	$29.6B
Q2 2021	1,004	$29.5B
Q1 2021	976	$27.0B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Marathon Petroleum Corp; share changes are against Q2 2025.

Institutions holding MPC in Q3 2025
Institution	Shares	Value	% of portfolio	Change in shares	Action
ASB Consultores, LLC	0	$0	0.00%	−1,826−100.0%	Sold out
Petrus Trust Company, LTA	0	$0	0.00%	−1,810−100.0%	Sold out
Principal Street Partners, LLC	0	$0	0.00%	−1,778−100.0%	Sold out
Prudent Man Advisors, LLC	0	$0	0.00%	−1,755−100.0%	Sold out
MBB Public Markets I LLC	0	$0	0.00%	−1,715−100.0%	Sold out
Sterling Investment Counsel, LLC	0	$0	0.00%	−1,550−100.0%	Sold out
Summit X, LLC	0	$0	0.00%	−1,481−100.0%	Sold out
Foronjy Financial LLC	0	$0	0.00%	−1,437−100.0%	Sold out
NWF Advisory Services Inc.	0	$0	0.00%	−1,412−100.0%	Sold out
Green Harvest Asset Management LLC	0	$0	0.00%	−1,394−100.0%	Sold out
Dark Forest Capital Management LP	0	$0	0.00%	−1,268−100.0%	Sold out
Prelude Capital Management, LLC	0	$0	0.00%	−1,222−100.0%	Sold out
Lazard Asset Management LLC	0	$0	0.00%	−1,037−100.0%	Sold out
Kiker Wealth Management, LLC	0	$0	0.00%	−1,017−100.0%	Sold out
Carderock Capital Management Inc	0	$0	0.00%	−750−100.0%	Sold out
GeoWealth Management, LLC	0	$0	0.00%	−590−100.0%	Sold out
Livelsberger Financial Advisory	0	$0	0.00%	−525−100.0%	Sold out
Intact Investment Management Inc.	0	$0	0.00%	−500−100.0%	Sold out
Garde Capital, Inc.	0	$0	0.00%	−378−100.0%	Sold out
ORG Wealth Partners, LLC	0	$0	0.00%	−318−100.0%	Sold out
Sawyer & Company, Inc	0	$0	0.00%	−200−100.0%	Sold out
CarsonAllaria Wealth Management, Ltd.	0	$0	0.00%	−234−100.0%	Sold out
Twin Peaks Wealth Advisors, LLC	0	$0	0.00%	−241−100.0%	Sold out
Sierra Ocean, LLC	0	$0	0.00%	−221−100.0%	Sold out
Transce3nd, LLC	0	$0	0.00%	−207−100.0%	Sold out
NewSquare Capital LLC	0	$0	0.00%	−199−100.0%	Sold out
GFG Capital, LLC	0	$0	0.00%	−111−100.0%	Sold out
Whipplewood Advisors, LLC	0	$0	0.00%	−103−100.0%	Sold out
Legend Financial Advisors, Inc.	0	$0	0.00%	−98−100.0%	Sold out
Centiva Capital, LP	0	$0	0.00%	−92−100.0%	Sold out
PMV Capital Advisers, LLC	0	$0	0.00%	−90−100.0%	Sold out
Bellwether Advisors, LLC	0	$0	0.00%	−65−100.0%	Sold out
Total Investment Management Inc	0	$0	0.00%	−57−100.0%	Sold out
WealthTrak Capital Management LLC	0	$0	0.00%	−49−100.0%	Sold out
Ridgewood Investments LLC	0	$0	0.00%	−49−100.0%	Sold out
Affinity Wealth LLC	0	$0	0.00%	−19−100.0%	Sold out
Park Square Financial Group, LLC	0	$0	0.00%	−10−100.0%	Sold out
LGT Financial Advisors LLC	0	$0	0.00%	−6−100.0%	Sold out
Wood Tarver Financial Group, LLC	0	$0	0.00%	−3−100.0%	Sold out
Norges Bank	–	–	–	–	Not filed
CIBC World Markets Corp	–	–	–	–	Not filed
EP Wealth Advisors, LLC	–	–	–	–	Not filed
Avantax Advisory Services, Inc.	–	–	–	–	Not filed
MEAG MUNICH ERGO, Kapitalanlagegesellschaft mbH	–	–	–	–	Not filed
Atria Wealth Solutions, Inc.	–	–	–	–	Not filed
Scott Marsh Financial, LLC	–	–	–	–	Not filed
Oliver Lagore Vanvalin Investment Group	–	–	–	–	Not filed
SRN Advisors, LLC	–	–	–	–	Not filed
Total Wealth Planning & Management, Inc.	–	–	–	–	Not filed
Good Life Advisors, LLC	–	–	–	–	Not filed
Atlas Capital Advisors LLC	–	–	–	–	Not filed
Hamilton Capital, LLC	–	–	–	–	Not filed
Congress Wealth Management LLC	–	–	–	–	Not filed
Graypoint LLC	–	–	–	–	Not filed
Financial Partners Group, LLC	–	–	–	–	Not filed
J. W. Coons Advisors, LLC	–	–	–	–	Not filed
Forte Capital LLC	–	–	–	–	Not filed
Smith Anglin Financial, LLC	–	–	–	–	Not filed
My Legacy Advisors, LLC	–	–	–	–	Not filed
Waypoint Wealth Partners Inc.	–	–	–	–	Not filed
TFG Advisers LLC	–	–	–	–	Not filed
First Horizon Advisors, Inc.	–	–	–	–	Not filed
Semmax Financial Advisors Inc.	–	–	–	–	Not filed
Iron Horse Wealth Management, LLC	–	–	–	–	Not filed
Parkworth Wealth Management, Inc.	–	–	–	–	Not filed
Financial Gravity Companies, Inc.	–	–	–	–	Not filed
PrairieView Partners, LLC	–	–	–	–	Not filed