Company · Ownership research

Marathon Petroleum Corp MPC

CIK 0001510295 · CUSIP 56585A102

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 56585A102 (MPC), not CUSIP 56585A902 (MPC), CUSIP 56585A952 (MPC), and does not merge CUSIPs.

This page lists the top 20 of 1,583 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	VANGUARD GROUP INC CIK 102909 · View history	$5.24B 32,136,742 shares	0.09%	-1.20M(-3.60%)Reduced	SEC filing ↗ Nov 13, 2024	▾
02	BlackRock, Inc. CIK 2012383 · View history	$4.13B 25,366,264 shares	0.09%	—	SEC filing ↗ Nov 13, 2024	▾
03	STATE STREET CORP CIK 93751 · View history	$3.66B 22,443,724 shares	0.15%	-1.30M(-5.50%)Reduced	SEC filing ↗ Nov 14, 2024	▾
04	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$1.14B 7,038,192 shares	0.09%	-285.89K(-3.90%)Reduced	SEC filing ↗ Nov 12, 2024	▾
05	MORGAN STANLEY CIK 895421 · Amended · View history	$1.12B 6,901,155 shares	0.08%	-186.11K(-2.60%)Reduced	SEC filing ↗ May 14, 2025	▾
06	FMR LLC CIK 315066 · View history	$923.87M 5,671,053 shares	0.06%	-131.18K(-2.30%)Reduced	SEC filing ↗ Nov 13, 2024	▾
07	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$911.27M 5,593,729 shares	0.16%	+4.33M(+342.10%)Added	SEC filing ↗ Nov 14, 2024	▾
08	AMERIPRISE FINANCIAL INC CIK 820027 · View history	$779.31M 4,779,762 shares	0.20%	+229.51K(+5.00%)Added	SEC filing ↗ Nov 14, 2024	▾
09	Bank of New York Mellon Corp CIK 1390777 · View history	$731.17M 4,488,165 shares	0.14%	+219.08K(+5.10%)Added	SEC filing ↗ Nov 12, 2024	▾
10	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$643.19M 3,947,934 shares	0.16%	-382.39K(-8.80%)Reduced	SEC filing ↗ Nov 7, 2024	▾
11	RAYMOND JAMES & ASSOCIATES CIK 1084208 · View history	$629.35M 3,863,182 shares	0.38%	-423.71K(-9.90%)Reduced	SEC filing ↗ Oct 18, 2024	▾
12	NORTHERN TRUST CORP CIK 73124 · View history	$562.51M 3,452,910 shares	0.09%	-167.73K(-4.60%)Reduced	SEC filing ↗ Nov 13, 2024	▾
13	PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history	$548.73M 3,368,267 shares	0.06%	+153.53K(+4.80%)Added	SEC filing ↗ Nov 14, 2024	▾
14	Invesco Ltd. CIK 914208 · View history	$539.55M 3,311,925 shares	0.10%	+119.29K(+3.70%)Added	SEC filing ↗ Nov 12, 2024	▾
15	NORGES BANK CIK 1374170 · Amended · View history	$528.73M 3,245,536 shares	0.07%	-210.09K(-6.10%)Reduced	SEC filing ↗ Nov 13, 2024	▾
16	BANK OF AMERICA CORP /DE/ CIK 70858 · Amended · View history	$474.68M 2,913,769 shares	0.04%	-18.78K(-0.60%)Reduced	SEC filing ↗ Nov 14, 2024	▾
17	Pacer Advisors, Inc. CIK 1616667 · View history	$473.35M 2,905,610 shares	1.01%	+235.79K(+8.80%)Added	SEC filing ↗ Nov 12, 2024	▾
18	Boston Partners CIK 1386060 · View history	$406.60M 2,501,662 shares	0.48%	-60.67K(-2.40%)Reduced	SEC filing ↗ Nov 12, 2024	▾
19	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$393.92M 2,418,012 shares	0.08%	-30.36K(-1.20%)Reduced	SEC filing ↗ Nov 12, 2024	▾
20	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$384.83M 2,362,244 shares	0.07%	-264.11K(-10.10%)Reduced	SEC filing ↗ Nov 14, 2024	▾

Showing 20 / 1,583 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

1,583

Cancelled or null records excluded

Disclosed shares

237,887,855

Not deduplicated across managers

Disclosed value

$38.85B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Marathon Petroleum Corp · Q3 2024

Explore all 1,583 reporting institutions.

This page includes 20 of 1,583 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

Download CSV
Earlier quarters
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 1,583 reporting institutions; totals use the complete disclosed data.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.

MCP  https://api.akkrudata.ai/mcp

akkru_institutional_holdings
{"action":"holders","cusip":"56585A102","quarter":"2024Q3","type":"positions","page_size":100}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP / CLI documentation: /documents
llms.txt: /llms.txt

Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.