13F Insight
DOSSIER · 13F Holders · Q2 2026
MARA 0 06/01/31

MARA HOLDINGS INC NOTE 6/0

26 institutions still hold MARA HOLDINGS INC NOTE 6/0 as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 565788AH9·26 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$283M
visible holders
Holders
26
filers reporting
Concentration
30.27%
ARISTEIA CAPITAL, L.L.C. #1
top holder share
AI Holders Summary · Q2 2026

26 institutions reported MARA 0 06/01/31 in Q2 2026. ARISTEIA CAPITAL, L.L.C. leads at 30.3% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
ARISTEIA CAPITAL, L.L.C.
CIK 0001080171
$86M88.0M1.11%Q2 202602
Context Capital Management, LLC
CIK 0001301396
$50M52.2M1.02%Q3 202603
WHITEBOX ADVISORS LLC
CIK 0001257391
$41M42.0M0.53%Q2 202604
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$19M19.9M0.01%Q2 202605
MORGAN STANLEY
CIK 0000895421
$14M14.4M0.00%Q2 202606
LINDEN ADVISORS LP
CIK 0001279396
$14M14.3M0.07%Q2 202607
CAPSTONE INVESTMENT ADVISORS, LLC
CIK 0001426196
$9M9.0M0.02%Q2 202608
K2 PRINCIPAL FUND, L.P.
CIK 0001461790
$9M9K0.64%Q2 202609
MARSHALL WACE, LLP
CIK 0001318757
$7M7.0M0.01%Q2 202610
BlackRock, Inc.
CIK 0002012383
$6M6.6M0.00%Q2 202611
CITADEL ADVISORS LLC
CIK 0001423053
$5M5.0M0.00%Q2 202612
Parallax Volatility Advisers, L.P.
CIK 0001521001
$5M5.0M0.01%Q2 202613
STATE STREET CORP
CIK 0000093751
$4M4.6M0.00%Q2 202614
FMR LLC
CIK 0000315066
$3M3.6M0.00%Q2 202615
Sculptor Capital LP
CIK 0001054587
$2M2.5M0.02%Q2 202616
Greenland Capital Management LP
CIK 0001896430
$2M2.0M0.24%Q2 202617
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main
CIK 0001694217
$2M2.0M0.00%Q2 202618
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$2M2.0M0.00%Q1 202619
Ionic Capital Management LLC
CIK 0001386462
$2M2.0M0.21%Q4 202520
Russell Investments Group, Ltd.
CIK 0001692234
$2M1.7M0.00%Q3 2026
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