13F Insight
DOSSIER · 13F Holders · Q1 2026CyclicalNet sold

ISHARES BITCOIN TRUST ETF

16 institutions still hold ISHARES BITCOIN TRUST ETF as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 46438F951·16 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 5.9%
vs prior quarter
13F value held
$1.3B
64.0% inst. owned
of float
Holders
16
+112 QoQ
filers reporting
Activity
+76 / −111
+972 added · −777 reduced
this quarter
Concentration
34.07%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q1 2026

16 institutions reported ISHARES BITCOIN TRUST ETF in Q1 2026. IMC-Chicago, LLC leads at 34.1% of the visible book. +112 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
IMC-Chicago, LLC
CIK 0001452861· Market maker
$436M11.4M0.16%Q1 202602
SIMPLEX TRADING, LLC
CIK 0001488542
$382M9.9M0.26%Q1 202603
JPMORGAN CHASE & CO
CIK 0000019617
$179M4.8M0.01%Q1 202604
Marathon Trading Investment Management LLC
CIK 0001572748
$129M3.4M3.52%Q1 202605
GROUP ONE TRADING LLC
CIK 0000932540
$47M1.2M0.09%Q1 202606
Optiver Holding B.V.
CIK 0001859606· Market maker
$41M1.1M0.01%Q1 202607
AKUNA SECURITIES LLC
CIK 0001529090
$32M842K0.07%Q1 202608
HIGHBRIDGE CAPITAL MANAGEMENT LLC
CIK 0000919185
$22M578K0.71%Q1 202609
HRT FINANCIAL LP
CIK 0001475597
$6M114K0.02%Q4 202510
Aristides Capital LLC
CIK 0001595521
$5M118K0.98%Q1 202611
All Terrain Financial Advisors, LLC
CIK 0001731358
$1M39K0.35%Q1 202612
CHESAPEAKE ASSET MANAGEMENT LLC
CIK 0001079397
$15,075300.01%Q1 202613
CMT Capital Markets Trading GmbH
CIK 0001632813
$9,559249K0.10%Q1 202614
Avenir Tech Ltd
CIK 0002029708
$7,6842000.00%Q1 202615
Altshuler Shaham Ltd
CIK 0001324290
$1,540200.00%Q1 202616
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025