SEALSQ Corp (LAES)
Nasdaq: LAES · Semiconductors & Related Devices · Cointrin, CH · filing with the SEC since 2022
Who owns SEALSQ Corp
As filed with the SECHolders of 5% or more
2
CVI Investments, Inc. holds 9.9% of Ordinary Shares, $0.01 par value per share, as its SCHEDULE 13G/A filed May 15, 2026 says.
Directors and officers
16
report now, of 16 people on the record since 2026. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 2 named at left.
Holders of 5% or moreshare of the class, as filed
CVI Investments, Inc.
SCHEDULE 13G/A · filed May 15, 2026 · Ordinary Shares, $0.01 par value per share · 9.9% in Feb 17, 2026
Susquehanna Securities, LLC
SCHEDULE 13G/A · filed May 15, 2026 · Ordinary Shares, USD 0.01 par value per share · 5.3% in Feb 13, 2026
Anson Funds Management LP
SCHEDULE 13G/A · filed Aug 14, 2026 · Ordinary Shares, par value USD 0.01 per share · reported falling below 5%, from 5.6% in May 15, 2026
WISeKey International Holding Ltd
SCHEDULE 13G/A · filed Jul 29, 2025 · Ordinary Shares, par value $0.01 per share · reported falling below 5%
L1 Capital Global Opportunities Master Fund, Ltd.
SCHEDULE 13G/A · filed Feb 13, 2025 · Ordinary Shares, par value $0.01 per share · reported falling below 5%, from 8.5% in Dec 19, 2024
What LAES reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
SEALSQ France SAS
An entity · consolidated entity · owns, named in the 20-F filed Mar 31, 2026
Quantix Edge Security S L
An investee · investee · invested in, named in the 20-F filed Mar 31, 2026
Wecan Group Ag
An investee · investee · invested in, named in the 20-F filed Mar 31, 2026
Wisesat.Space Corp
An investee · investee · invested in, named in the 20-F filed Mar 31, 2026
Ic Alps
A company bought · acquisition · Jul 2025 · owns, named in the 20-F filed Mar 31, 2026
IC' Alps SAS
A company bought · acquisition, consolidated entity, legal entity · owns, named in the 20-F filed Mar 31, 2026
6 subsidiaries in 5 countries, from the list filed with the 20-F filed Mar 31, 2026.
Insider tradesForm 4
39sales
0purchases
39sales on a scheduled plan
6people selling
$1.2Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Nov 3, 2025 to Nov 3, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 3, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window6 of 16 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| O'Hara John Charles | Chief Financial Officer | 22 | $600,000 | 22 | 0 | $0 |
| Enguent Jean-Pierre | Vice President, R&DSS | 8 | $400,000 | 8 | 0 | $0 |
| Moreira Carlos | Chief Executive Officer | 5 | $100,000 | 5 | 0 | $0 |
| Buonanno Franck Jean | Vice-President, Global Sales | 2 | $100,000 | 2 | 0 | $0 |
| Feuardent Moreira Andreas | Chief Innovation Officer | 1 | $0 | 1 | 0 | $0 |
| Verjus Nathalie Claude Odile | Company Secretary | 1 | $0 | 1 | 0 | $0 |