LAES · NASDAQ · Semiconductors

SEALSQ (LAES)

Builds secure chips and PKI services for connected devices and post-quantum security.

$2.33
vs last close−0.02 (−1.06%)

13F · 13D/G · Form 4

Institutions≈ 8.58%12.23M ADS
120 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail
Other≈ 91.42%130.36M ADS
remainder

142.59M ADS as of Sep 9, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing

The share count is from the company's Dec 2024 annual report; nothing newer is on file here.

The share count has not been confirmed by a second filing; stakes use it as it stands.

Some positions are filed in underlying shares, not receipts; the ratio is unknown, so no percentage.

This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.

13F · 13D/G · Form 4

HolderStakeSharesDate
UBS Group AGInstitution
0.95%1.36M ADSas of Jun 30, 2026
Bank of New York Mellon CorpInstitution
0.87%1.24M ADSas of Jun 30, 2026
HRT Financial LPInstitution
0.79%1.13M ADSas of Jun 30, 2026
Two Sigma Investments, LPInstitution
0.77%1.10M ADSas of Jun 30, 2026
Kessler Investment Group, LLCInstitution
0.68%975,458 ADSas of Jun 30, 2026
Barclays PLCInstitution
0.36%514,556 ADSas of Jun 30, 2026
Tudor Investment Corp et alInstitution
0.34%484,909 ADSas of Jun 30, 2026
Man Group PLCInstitution
0.26%367,260 ADSas of Jun 30, 2026
Sbi Securities Co., Ltd.Institution
0.23%331,008 ADSas of Jun 30, 2026
XTX Topco LtdInstitution
0.23%323,249 ADSas of Jun 30, 2026
Wim Investment Management LtdInstitution
0.16%229,600 ADSas of Jun 30, 2026
Goldman Sachs Group IncInstitution
0.15%215,800 ADSas of Jun 30, 2026
Headlands Technologies LLCInstitution
0.14%199,989 ADSas of Jun 30, 2026
Squarepoint Ops LLCInstitution
0.13%179,854 ADSas of Jun 30, 2026
Virtu Financial LLCInstitution
0.12%176,009 ADSas of Jun 30, 2026
Vident Advisory, LLCInstitution
0.12%170,752 ADSas of Jun 30, 2026
LPL Financial LLCInstitution
0.11%159,446 ADSas of Jun 30, 2026
Citigroup IncInstitution
0.11%158,471 ADSas of Jun 30, 2026
BlackRock, Inc.Institution
0.11%152,173 ADSas of Jun 30, 2026
Northern Trust CorpInstitution
0.09%123,863 ADSas of Jun 30, 2026
Zurcher Kantonalbank (Zurich Cantonalbank)Institution
0.08%116,343 ADSas of Jun 30, 2026
Virtue Capital Management, LLCInstitution
0.08%112,000 ADSas of Jun 30, 2026
Caitong International Asset Management Co., LtdInstitution
0.08%110,524 ADSas of Jun 30, 2026
Peak6 LLCInstitution
0.08%109,559 ADSas of Jun 30, 2026
Bank of America Corp /DE/Institution
0.07%102,006 ADSas of Jun 30, 2026

13F, as of Jun 30, 2026

120 holders · 12.23M shares · 41 new positions · 82 increased · 18 reduced · 18 closed

HolderShares% outstandingChg q/qFiled
UBS Group AG1.36M0.95%+428.1KAug 13, 2026
Bank of New York Mellon Corp1.24M0.87%+1.12MAug 6, 2026
HRT Financial LP1.13M0.79%+420.1KAug 14, 2026
Two Sigma Investments, LP1.10M0.77%+1.10MnewAug 14, 2026
Kessler Investment Group, LLC975.5K0.68%−18.3KJul 13, 2026
Barclays PLC514.6K0.36%+514.6KnewAug 14, 2026
Tudor Investment Corp et al484.9K0.34%+484.9KAug 14, 2026
Man Group PLC367.3K0.26%+367.3KnewAug 14, 2026

13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
CVI Investments, Inc.9.90%24.38M13GMay 15, 2026
Anson Funds Management LP5.60%12.46M13GMay 15, 2026
Susquehanna Securities, LLC5.40%12.13M13GMay 15, 2026

Form 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Sep 3, 2026
Jean-Pierre Enguentofficer: Vice President, R&DSS
Sale15,000$2.400
Aug 5, 2026
Jean-Pierre Enguentofficer: Vice President, R&DSS
Sale15,000$2.460
Jul 8, 2026
Jean-Pierre Enguentofficer: Vice President, R&DSS
Sale15,000$2.820
Jun 5, 2026
John Charles O'Haradirector, officer: Chief Financial Officer
Sale143$3.51250,431
Jun 5, 2026
Carlos Moreiradirector, officer: Chief Executive Officer
Sale300$3.51696,215
May 29, 2026
John Charles O'Haradirector, officer: Chief Financial Officer
Sale10,000$3.51266,156
May 27, 2026
John Charles O'Haradirector, officer: Chief Financial Officer
Sale4,689$3.50276,156
May 29, 2026
Carlos Moreiradirector, officer: Chief Executive Officer
Sale10,000$3.51713,520
May 27, 2026
Carlos Moreiradirector, officer: Chief Executive Officer
Sale4,139$3.50723,520
May 14, 2026
Franck Jean Buonannoofficer: Vice-President, Global Sales
Sale20,000$2.9010,000

House and Senate disclosures

Not reported.