Company · Ownership research

MARA Holdings, Inc. MARA

CIK 0001507605 · CUSIP 565788106

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 565788106 (MARA), not CUSIP 565788906 (MARA), CUSIP 565788956 (MARA), CUSIP 56585W401 (MARA), and does not merge CUSIPs.

This page lists the top 20 of 390 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	BlackRock, Inc. CIK 2012383 · View history	$487.77M 59,775,301 shares	0.01%	+1.22M(+2.10%)Added	SEC filing ↗ May 13, 2026	▾
02	VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · Amended · View history	$215.75M 26,439,424 shares	0.01%	—	SEC filing ↗ May 8, 2026	▾
03	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history	$133.44M 16,352,439 shares	0.00%	—	SEC filing ↗ May 15, 2026	▾
04	STATE STREET CORP CIK 93751 · View history	$124.20M 15,220,168 shares	0.00%	+455.18K(+3.10%)Added	SEC filing ↗ May 15, 2026	▾
05	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$84.19M 10,315,169 shares	0.01%	+357.40K(+3.60%)Added	SEC filing ↗ May 15, 2026	▾
06	Marex Group plc CIK 1997464 · View history	$67.85M 8,314,897 shares	0.70%	-1.82M(-18.00%)Reduced	SEC filing ↗ May 13, 2026	▾
07	UBS Group AG CIK 1610520 · View history	$62.20M 7,622,765 shares	0.01%	-1.97M(-20.50%)Reduced	SEC filing ↗ May 5, 2026	▾
08	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$49.22M 6,032,453 shares	0.01%	+2.29M(+61.30%)Added	SEC filing ↗ May 15, 2026	▾
09	MORGAN STANLEY CIK 895421 · View history	$42.59M 5,219,396 shares	0.00%	-1.12M(-17.70%)Reduced	SEC filing ↗ May 15, 2026	▾
10	BANK OF AMERICA CORP /DE/ CIK 70858 · View history	$41.53M 5,089,211 shares	0.00%	+1.68M(+49.40%)Added	SEC filing ↗ May 18, 2026	▾
11	JPMORGAN CHASE & CO CIK 19617 · Amended · View history	$36.41M 4,671,002 shares	0.00%	+2.95M(+171.20%)Added	SEC filing ↗ May 13, 2026	▾
12	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$33.49M 4,103,684 shares	0.01%	-287.11K(-6.50%)Reduced	SEC filing ↗ May 15, 2026	▾
13	HRT FINANCIAL LP CIK 1475597 · View history	$30.02M 3,679,439 shares	0.07%	+3.68MNew	SEC filing ↗ May 14, 2026	▾
14	VAN ECK ASSOCIATES CORP CIK 869178 · View history	$28.41M 3,481,475 shares	0.02%	+754.41K(+27.70%)Added	SEC filing ↗ May 15, 2026	▾
15	NORTHERN TRUST CORP CIK 73124 · View history	$27.28M 3,343,201 shares	0.00%	+221.51K(+7.10%)Added	SEC filing ↗ May 14, 2026	▾
16	Capital Research Global Investors CIK 1422848 · View history	$27.07M 3,316,943 shares	0.00%	-382.08K(-10.30%)Reduced	SEC filing ↗ May 13, 2026	▾
17	Bank of New York Mellon Corp CIK 1390777 · View history	$20.09M 2,461,571 shares	0.00%	-48.65K(-1.90%)Reduced	SEC filing ↗ May 5, 2026	▾
18	VANGUARD FIDUCIARY TRUST CO CIK 933478 · Amended · View history	$19.80M 2,426,013 shares	0.00%	—	SEC filing ↗ May 8, 2026	▾
19	Clear Street Group Inc. CIK 1881567 · View history	$19.17M 2,349,300 shares	0.11%	+1.06M(+82.20%)Added	SEC filing ↗ May 15, 2026	▾
20	SUSQUEHANNA INTERNATIONAL GROUP, LLP CIK 1446194 · View history	$17.30M 2,120,505 shares	0.02%	+1.69M(+396.10%)Added	SEC filing ↗ May 15, 2026	▾

Showing 20 / 390 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

390

Cancelled or null records excluded

Disclosed shares

245,712,450

Not deduplicated across managers

Disclosed value

$2.00B

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.

MARA Holdings, Inc. · Q1 2026

Explore all 390 reporting institutions.

This page includes 20 of 390 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.

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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.