13F Insight
DOSSIER · 13F Holders · Q3 2026

ISHARES BITCOIN TRUST ETF

15 institutions still hold ISHARES BITCOIN TRUST ETF as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 46438F951·15 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$1.9B
visible holders
Holders
15
filers reporting
Concentration
33.52%
SIMPLEX TRADING, LLC #1
top holder share
AI Holders Summary · Q3 2026

15 institutions reported ISHARES BITCOIN TRUST ETF in Q3 2026. SIMPLEX TRADING, LLC leads at 33.5% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
SIMPLEX TRADING, LLC
CIK 0001488542
$632M13.4M0.34%Q3 202602
IMC-Chicago, LLC
CIK 0001452861· Market maker
$604M12.8M0.13%Q3 202603
Optiver Holding B.V.
CIK 0001859606· Market maker
$206M6.2M0.06%Q2 202604
JPMORGAN CHASE & CO
CIK 0000019617
$138M2.9M0.01%Q3 202605
GROUP ONE TRADING LLC
CIK 0000932540
$105M2.2M0.14%Q3 202606
AKUNA SECURITIES LLC
CIK 0001529090
$101M2.1M0.24%Q3 202607
Marathon Trading Investment Management LLC
CIK 0001572748
$63M1.3M1.70%Q3 202608
HRT FINANCIAL LP
CIK 0001475597
$20M420K0.03%Q3 202609
CMT Capital Markets Trading GmbH
CIK 0001632813
$10M249K0.10%Q1 202610
HIGHBRIDGE CAPITAL MANAGEMENT LLC
CIK 0000919185
$7M200K0.17%Q2 202611
All Terrain Financial Advisors, LLC
CIK 0001731358
$2M35K0.25%Q3 202612
Ancora Advisors LLC
CIK 0001446114
$27K1000.00%Q2 202613
Farther Finance Advisors, LLC
CIK 0001992825
$5K1000.00%Q3 202614
CHESAPEAKE ASSET MANAGEMENT LLC
CIK 0001079397
$1K240.00%Q3 202615
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025