13F Insight
DOSSIER · 13F Holders · Q1 2026Mega-capCrowded
MARA 1 12/01/26

MARA HOLDINGS INC

6 institutions still hold MARA HOLDINGS INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 565788AB2·6 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 7.0%
vs prior quarter
13F value held
$45M
51.0% inst. owned
of float
Holders
6
+17 QoQ
filers reporting
Activity
+36 / −85
+981 added · −785 reduced
this quarter
Concentration
74.86%
Solus Alternative Asset Management LP #1
top holder share
AI Holders Summary · Q1 2026

6 institutions reported MARA 1 12/01/26 in Q1 2026. Solus Alternative Asset Management LP leads at 74.9% of the visible book. +17 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
Solus Alternative Asset Management LP
CIK 0001407737
$34M35.6M9.05%Q1 202602
K2 PRINCIPAL FUND, L.P.
CIK 0001461790
$6M6K0.40%Q1 202603
HIGHBRIDGE CAPITAL MANAGEMENT LLC
CIK 0000919185
$3M3.5M0.11%Q1 202604
Pinpoint Asset Management (Singapore) Pte. Ltd.
CIK 0002080247
$2M2.3M0.50%Q1 202605
MORGAN STANLEY
CIK 0000895421
$8,5059K0.00%Q1 202606
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025