13F Insight
DOSSIER · 13F Holders · Q2 2026

SEALSQ CORP

117 institutions still hold SEALSQ CORP as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP G79483106·117 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$119M
visible holders
Holders
117
filers reporting
Concentration
35.51%
SUSQUEHANNA INTERNATIONAL GROUP, LLP #1
top holder share
AI Holders Summary · Q2 2026

117 institutions reported SEALSQ CORP in Q2 2026. SUSQUEHANNA INTERNATIONAL GROUP, LLP leads at 35.5% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$42M13.4M0.00%Q2 202602
CITADEL ADVISORS LLC
CIK 0001423053
$23M7.2M0.00%Q2 202603
PEAK6 LLC
CIK 0001389958
$13M4.1M0.03%Q2 202604
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$12M4.6M0.00%Q1 202605
UBS Group AG
CIK 0001610520
$4M1.4M0.00%Q2 202606
Bank of New York Mellon Corp
CIK 0001390777
$4M1.2M0.00%Q2 202607
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$3M1.1M0.00%Q2 202608
BARCLAYS PLC
CIK 0000312069
$3M1.1M0.00%Q2 202609
TUDOR INVESTMENT CORP ET AL
CIK 0000923093
$3M1.3M0.01%Q1 202610
Kessler Investment Group, LLC
CIK 0001525947
$3M975K1.31%Q2 202611
Man Group plc
CIK 0001637460
$1M367K0.00%Q2 202612
SBI Securities Co., Ltd.
CIK 0001851815
$1M331K0.02%Q2 202613
XTX Topco Ltd
CIK 0001828301
$1M323K0.01%Q2 202614
WOLVERINE TRADING, LLC
CIK 0000927337
$774K213K0.00%Q3 202515
WIM INVESTMENT MANAGEMENT Ltd
CIK 0002042565
$723K230K0.24%Q2 202616
GOLDMAN SACHS GROUP INC
CIK 0000886982
$680K216K0.00%Q2 202617
Headlands Technologies LLC
CIK 0001570271
$630K200K0.07%Q2 202618
Squarepoint Ops LLC
CIK 0001642575
$567K180K0.00%Q2 202619
Vident Advisory, LLC
CIK 0001744347
$538K171K0.00%Q2 202620
LPL Financial LLC
CIK 0001403438
$502K159K0.00%Q2 2026
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