MPC Marathon Petroleum Corporation

NYSE
$395.93

Marathon Petroleum Corporation (MPC) Institutional Ownership

What the institutions did with MPC last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers compared
2,010
filed both this quarter and last
Managers holding
1,918
+56 on the quarter
Buyers
834
148 opened new
Sellers
806
92 sold out entirely
Buyer share
50.9%
of managers who traded it
Breadth
+1.7
net buyers, as a share of those trading

Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Ownership map

Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.

Cut Unchanged Added Color saturates at ±50%.

Largest holders

Manager Shares % of reported
BlackRock, Inc. 26.0M 11.9%
VANGUARD CAPITAL MANAGEMENT LLC 19.1M 8.7%
STATE STREET CORP 18.5M 8.4%
VANGUARD PORTFOLIO MANAGEMENT LLC 15.6M 7.1%
GEODE CAPITAL MANAGEMENT, LLC 8.4M 3.8%
MORGAN STANLEY 5.9M 2.7%
RAYMOND JAMES FINANCIAL INC 5.7M 2.6%
FMR LLC 5.4M 2.5%
Bank of New York Mellon Corp 4.0M 1.8%
Boston Partners 3.5M 1.6%
WELLINGTON MANAGEMENT GROUP LLP 3.3M 1.5%
NORTHERN TRUST CORP 3.1M 1.4%
DIMENSIONAL FUND ADVISORS LP 3.1M 1.4%
GOLDMAN SACHS GROUP INC 2.9M 1.3%
JPMORGAN CHASE & CO 2.7M 1.2%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 2.6M 1.2%
NORGES BANK 2.5M 1.1%
BANK OF AMERICA CORP /DE/ 2.4M 1.1%
Invesco Ltd. 2.3M 1.1%
Amundi 2.2M 1.0%
AMERIPRISE FINANCIAL INC 2.0M 0.9%
UBS Group AG 1.8M 0.8%
PRICE T ROWE ASSOCIATES INC /MD/ 1.8M 0.8%
VANGUARD FIDUCIARY TRUST CO 1.7M 0.8%
Capital Wealth Planning, LLC 1.6M 0.7%

Largest changes

Manager Action Previous Current Change
HARRIS ASSOCIATES L P Reduced 2.8M 229.0K -2.6M
WELLINGTON MANAGEMENT GROUP LLP Reduced 5.6M 3.3M -2.4M
Boston Partners Reduced 5.6M 3.5M -2.1M
BlackRock, Inc. Increased 24.4M 26.0M +1.6M
JPMORGAN CHASE & CO Reduced 3.4M 2.7M -699.6K
CANADA PENSION PLAN INVESTMENT BOARD Reduced 1.1M 511.5K -610.1K
VICTORY CAPITAL MANAGEMENT INC Increased 422.7K 1.0M +593.5K
AMERICAN CENTURY COMPANIES INC Increased 154.5K 716.3K +561.8K
PRICE T ROWE ASSOCIATES INC /MD/ Increased 1.3M 1.8M +556.8K
STATE STREET CORP Reduced 19.0M 18.5M -553.1K
GEODE CAPITAL MANAGEMENT, LLC Increased 7.8M 8.4M +529.6K
FMR LLC Increased 4.9M 5.4M +508.6K
Invesco Ltd. Reduced 2.8M 2.3M -487.6K
AQR CAPITAL MANAGEMENT LLC Increased 432.6K 828.3K +395.7K
BNP PARIBAS FINANCIAL MARKETS Increased 592.0K 964.4K +372.5K
Amundi Increased 1.9M 2.2M +332.6K
AustralianSuper Pty Ltd Increased 489.5K 797.2K +307.7K
Holocene Advisors, LP Reduced 414.1K 123.8K -290.4K
TWO SIGMA INVESTMENTS, LP Reduced 1.5M 1.2M -285.0K
Bridgewater Associates, LP Increased 77.3K 349.2K +271.9K
MARSHALL WACE, LLP Reduced 383.3K 126.0K -257.3K
LAZARD ASSET MANAGEMENT LLC New 0 254.8K +254.8K
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Increased 1.3M 1.5M +215.7K
CITADEL ADVISORS LLC Increased 202.1K 412.3K +210.2K
AMERIPRISE FINANCIAL INC Reduced 2.2M 2.0M -193.4K
SG Americas Securities, LLC Increased 149.9K 340.3K +190.4K
HRT FINANCIAL LP New 0 188.6K +188.6K
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Reduced 410.5K 223.2K -187.3K
MORGAN STANLEY Reduced 6.1M 5.9M -186.2K
Squarepoint Ops LLC Increased 369.5K 554.0K +184.6K
Legal & General Group Plc Reduced 1.7M 1.5M -171.9K
UBS Group AG Increased 1.7M 1.8M +168.0K
REAVES W H & CO INC Reduced 220.6K 56.5K -164.1K
BANK OF AMERICA CORP /DE/ Reduced 2.6M 2.4M -162.9K
LSV ASSET MANAGEMENT Increased 1.3M 1.4M +162.5K
ACADIAN ASSET MANAGEMENT LLC Reduced 530.6K 375.0K -155.6K
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Increased 348.8K 503.8K +155.1K
Man Group plc Increased 142.2K 293.8K +151.6K
Maryland State Retirement & Pension System Increased 15.3K 161.5K +146.2K
Allianz Asset Management GmbH Reduced 1.7M 1.6M -144.8K
BANK OF NOVA SCOTIA Reduced 255.9K 113.4K -142.5K
WELLS FARGO & COMPANY/MN Reduced 822.9K 692.4K -130.4K
GOLDMAN SACHS GROUP INC Increased 2.8M 2.9M +129.7K
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main Reduced 194.5K 66.9K -127.5K
PRINCIPAL FINANCIAL GROUP INC Reduced 1.5M 1.4M -125.2K
LOS ANGELES CAPITAL MANAGEMENT LLC Reduced 501.6K 383.2K -118.5K
FIRST TRUST ADVISORS LP Reduced 276.5K 163.4K -113.1K
CHARLES SCHWAB INVESTMENT MANAGEMENT INC Reduced 2.7M 2.6M -106.9K
Korea Investment CORP Reduced 322.5K 216.0K -106.5K
Arbejdsmarkedets Tillaegspension New 0 104.6K +104.6K
OFI INVEST ASSET MANAGEMENT Sold Out 104.0K 0 -104.0K
VANGUARD CAPITAL MANAGEMENT LLC Reduced 19.2M 19.1M -95.8K
Recurrent Investment Advisors LLC Reduced 181.0K 85.8K -95.2K
MACKENZIE FINANCIAL CORP Increased 117.0K 211.0K +94.0K
CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT Reduced 142.8K 49.8K -93.0K
RAYMOND JAMES FINANCIAL INC Reduced 5.8M 5.7M -88.8K
TEACHER RETIREMENT SYSTEM OF TEXAS Reduced 239.1K 150.8K -88.4K
Pacer Advisors, Inc. Reduced 1.3M 1.3M -85.5K
Empowered Funds, LLC Increased 137.1K 219.7K +82.6K
FEDERATED HERMES, INC. Increased 387.3K 469.8K +82.5K

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.