Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

MARA Holdings, Inc.

CIK 0001507605MARA· quarter ending 2026-06-30

Shares outstanding

386,299,297

as of 2026-07-30 · 10-Q cover page, filed 2026-08-06

Held by 13F filers

619,570,800

selection includes debt or preferreds — no % of shares outstanding

Holders

-6 vs 2026-03-31 · 5 new, 11 exited

Value

$635.2M

shares +3.8% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-06, as of 2026-07-30)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	MARA · NASDAQ	386,299,297	280,159,837	72.5%	415	565788106

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
565788106	COM	415	280,159,837	386,299,297	72.5%	$3.9B	36 call / 37 put	13DG	holders →
565788AF3	NOTE 3/0not common	33	4,000,000 $615.6M principal	—	—	$635.2M	—	NPORT	holders →
565788AD8	NOTE 2.125% 9/0not common	23	$299.3M principal	—	—	$335.5M	—	prefix	holders →
565788AH9	NOTE 6/0not common	22	$285.2M principal	—	—	$285.3M	—	NPORT	holders →
565788AB2	NOTE 1.000%12/0not common	5	$41.4M principal	—	—	$45.7M	—	prefix	holders →
565788AJ5	FIXED INCOMEnot common	1	$4.0M principal	—	—	$4.0M	—	NPORT	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings. 3 further CUSIPs map to this company (mostly bonds) but no 13F filer held them this quarter.

Top holders (33 of 33 · 565788AF3)

change vs 2026-03-31

#	Filer	Shares / principal	% of class	Value	Change
1	Context Capital Management, LLC	109,800,000	—	$110.2M	+53,500,000 (+95.0%)
2	D. E. Shaw & Co., Inc.	91,028,000	—	$91.5M	+34,139,000 (+60.0%)
3	WHITEBOX ADVISORS LLC	72,250,000	—	$72.2M	+2,400,000 (+3.4%)
4	Point72 Asset Management, L.P.	52,705,000	—	$53.1M	-57,000,000 (-52.0%)
5	ARISTEIA CAPITAL, L.L.C.	48,702,000	—	$48.9M	+5,500,000 (+12.7%)
6	Graham Capital Management, L.P.	45,909,000	—	$46.1M	+28,909,000 (+170.1%)
7	Linden Advisors LP	29,771,000	—	$29.9M	NEW
8	DeepCurrents Investment Group LLC	28,500,000	—	$28.7M	NEW
9	MILLENNIUM MANAGEMENT LLC	20,925,000	—	$21.1M	+3,000,000 (+16.7%)
10	CAPSTONE INVESTMENT ADVISORS, LLC	16,000,000	—	$16.1M	-1,500,000 (-8.6%)
11	STATE STREET CORP	15,584,000	—	$15.6M	-6,530,000 (-29.5%)
12	BlackRock, Inc.	12,375,000	—	$12.4M	-3,650,000 (-22.8%)
13	Nantahala Capital Management, LLC	10,000,000	—	$10.0M	+5,000,000 (+100.0%)
14	CSS LLC/IL	9,467,000	—	$9.5M	-3,466,000 (-26.8%)
15	FMR LLC	7,775,000	—	$7.8M	-1,175,000 (-13.1%)
16	Calamos Advisors LLC	7,000,000	—	$7.0M	—
17	Fort Baker Capital Management LP	7,000,000	—	$7.0M	+5,000,000 (+250.0%)
18	BTG Pactual Asset Management US LLC	6,000,000	—	$6.0M	—
19	UBS Group AG	4,536,000	—	$4.5M	—
20	STATE OF WISCONSIN INVESTMENT BOARD	4,000,000	—	$4.0M	+1,000,000 (+33.3%)
21	MORGAN STANLEY	4,000,000	—	$4.0M	-1,150,000 (-22.3%)
22	CITIGROUP INC	3,819,000	—	$3.8M	+1,850,000 (+94.0%)
23	TWO SIGMA INVESTMENTS, LP	3,000,000	—	$3.0M	NEW
24	GOLDMAN SACHS GROUP INC	2,500,000	—	$2.5M	—
25	ADVENT CAPITAL MANAGEMENT /DE/	2,170,000	—	$2.2M	-630,000 (-22.5%)
26	Pinpoint Asset Management (Singapore) Pte. Ltd.	2,000,000	—	$2.0M	—
27	DNCA FINANCE	1,050,000	—	$1.1M	+400,000 (+61.5%)
28	Balyasny Asset Management L.P.	1,000,000	—	$1.0M	NEW
29	SSI INVESTMENT MANAGEMENT LLC	534,000	—	$534K	-6,660,000 (-92.6%)
30	ROYAL BANK OF CANADA	150,000	—	$152K	NEW
31	K2 PRINCIPAL FUND, L.P.	12,500	—	$12.6M	—
32	SG Americas Securities, LLC	8,300	—	$827K	-3,700 (-30.8%)
33	Erste Asset Management GmbH	0	—	$0	—

Exited since 2026-03-31 (11 filers; largest 11 shown)

HIGHBRIDGE CAPITAL MANAGEMENT LLC	−35,313,000
DLD Asset Management, LP	−20,000,000
BANK OF AMERICA CORP /DE/	−14,814,000
Sculptor Capital LP	−12,250,000
Magnetar Financial LLC	−7,000,000
FRANKLIN RESOURCES INC	−5,979,000
Jefferies Financial Group Inc.	−1,196,000
CANTOR FITZGERALD, L. P.	−1,000,000
GROUPAMA ASSET MANAGMENT	−750,000
Central Pacific Bank - Trust Division	−389,000
Shaolin Capital Management LLC	−1,500

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
Vanguard Capital Management	SCHEDULE 13G	2026-04-30	2026-03-31	19,211,414	5.05%
Vanguard Portfolio Management	SCHEDULE 13G	2026-04-29	2026-03-31	26,585,326	6.99%
The Vanguard Group	SCHEDULE 13G/A	2026-03-27	2026-03-13	0	0%
G1 Execution Services, LLC	SCHEDULE 13G/A	2025-11-13	2025-09-30	18,825,520	4.9%
SIG Brokerage, LP	SCHEDULE 13G/A	2025-11-13	2025-09-30	18,825,520	4.9%
Susquehanna Investment Group	SCHEDULE 13G/A	2025-11-13	2025-09-30	18,825,520	4.9%
Susquehanna Securities, LLC	SCHEDULE 13G/A	2025-11-13	2025-09-30	18,825,520	4.9%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.