SEC Form 4
SEALSQ Corp (LAES) insider trading
In the 12 months to Oct 26, 2026, 6 LAES insiders reported open-market sales of $1.1M across 24 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $1.1M
- 24 filings · 6 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 24 of 24
- All $1.1M sold was pre-arranged
Who traded LAES, and when
- Sale
- Sale, pre-arranged (10b5-1)
LAES daily close from Oct 27, 2025 to Oct 26, 2026, between $1.54 and $7.42, last $1.54. 24 sale and 0 purchase filings by 6 insiders, marked at their filing dates. John Charles O'Hara, Chief Financial Officer: sold $556.9K across 10 filings, first filed Mar 23, 2026, last Jun 5, 2026. Jean-Pierre Enguent, Vice President, R&DSS: sold $333.7K across 7 filings, first filed Apr 9, 2026, last Oct 7, 2026. Carlos Moreira, Chief Executive Officer: sold $112.3K across 3 filings, first filed May 29, 2026, last Jun 5, 2026. Franck Jean Buonanno, Vice-President, Global Sales: sold $81.5K across 2 filings, first filed Apr 1, 2026, last May 15, 2026. Moreira Andreas Feuardent, Chief Innovation Officer: sold $23.1K across 1 filing, first filed Apr 8, 2026, last Apr 8, 2026. Nathalie Claude Odile Verjus, Company Secretary: sold $15.1K across 1 filing, first filed Mar 19, 2026, last Mar 19, 2026.
Largest mark · tap a row for others
John Charles O'Hara · Chief Financial Officer
Filing 1 of 2 within a week · $148,312 total
Sale $60,177
20,000 shares
Filed Mar 23, 2026 · traded Mar 19
Pre-arranged (10b5-1) · close on filing date $2.96
John Charles O'Hara · Chief Financial Officer
Chief Financial Officer
$556.9K soldJean-Pierre Enguent · Vice President, R&DSS
Vice President, R&DSS
$333.7K soldCarlos Moreira · Chief Executive Officer
Chief Executive Officer
$112.3K soldFranck Jean Buonanno · Vice-President, Global Sales
Vice-President, Global Sales
$81.5K soldMoreira Andreas Feuardent · Chief Innovation Officer
Chief Innovation Officer
$23.1K soldNathalie Claude Odile Verjus · Company Secretary
Company Secretary
$15.1K soldOpen-market trades
24 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| John Charles O'Hara | Chief Financial Officer | $556.9K | — | 10 | 100% of sales | |
| Jean-Pierre Enguent | Vice President, R&DSS | $333.7K | — | 7 | 100% of sales | |
| Carlos Moreira | Chief Executive Officer | $112.3K | — | 3 | 100% of sales | |
| Franck Jean Buonanno | Vice-President, Global Sales | $81.5K | — | 2 | 100% of sales | |
| Moreira Andreas Feuardent | Chief Innovation Officer | $23.1K | — | 1 | 100% of sales | |
| Nathalie Claude Odile Verjus | Company Secretary | $15.1K | — | 1 | 100% of sales |
| Filed | Insider | Type | Shares | Value | Held after | Source |
|---|---|---|---|---|---|---|
traded | Jean-Pierre Enguent Vice President, R&DSS | SalePre-arranged (10b5-1) | 35,000 ordinary shares | $85.9K | 0 | |
traded | Jean-Pierre Enguent Vice President, R&DSS | SalePre-arranged (10b5-1) | 15,000 ordinary shares | $36.0K | 0 | |
traded | Jean-Pierre Enguent Vice President, R&DSS | SalePre-arranged (10b5-1) | 15,000 ordinary shares | $36.9K | 0 | |
traded | Jean-Pierre Enguent Vice President, R&DSS | SalePre-arranged (10b5-1) | 15,000 ordinary shares | $42.3K | 0 | |
traded | Carlos Moreira Chief Executive Officer | SalePre-arranged (10b5-1) | 300 ordinary shares | $1.1K | 696,215 | |
traded | John Charles O'Hara Chief Financial Officer | SalePre-arranged (10b5-1) | 143 ordinary shares | $502 | 250,431 | |
traded | Carlos Moreira Chief Executive Officer | SalePre-arranged (10b5-1) | 17,005 ordinary shares | $61.6K | 696,515 | |
traded | John Charles O'Hara Chief Financial Officer | SalePre-arranged (10b5-1) | 15,582 ordinary shares | $56.6K | 250,574 | |
traded | Jean-Pierre Enguent Vice President, R&DSS | SalePre-arranged (10b5-1) | 15,000 ordinary shares | $52.7K | 0 | |
traded | Carlos Moreira Chief Executive Officer | SalePre-arranged (10b5-1) | 14,139 ordinary shares | $49.6K | 713,520 | |
traded | John Charles O'Hara Chief Financial Officer | SalePre-arranged (10b5-1) | 14,689 ordinary shares | $51.5K | 266,156 | |
traded | Franck Jean Buonanno Vice-President, Global Sales | SalePre-arranged (10b5-1) | 20,000 ordinary shares | $58.0K | 10,000 | |
traded | Jean-Pierre Enguent Vice President, R&DSS | SalePre-arranged (10b5-1) | 15,000 ordinary shares | $47.0K | 0 | |
traded | John Charles O'Hara Chief Financial Officer | SalePre-arranged (10b5-1) | 25,250 ordinary shares | $74.6K | 280,845 | |
traded | John Charles O'Hara Chief Financial Officer | SalePre-arranged (10b5-1) | 20,000 ordinary shares | $58.3K | 306,095 | |
traded | John Charles O'Hara Chief Financial Officer | SalePre-arranged (10b5-1) | 20,000 ordinary shares | $54.2K | 326,095 | |
traded | John Charles O'Hara Chief Financial Officer | SalePre-arranged (10b5-1) | 30,000 ordinary shares | $64.2K | 215,595 | |
traded | Jean-Pierre Enguent Vice President, R&DSS | SalePre-arranged (10b5-1) | 15,000 ordinary shares | $33.0K | 0 | |
traded | Moreira Andreas Feuardent Chief Innovation Officer | SalePre-arranged (10b5-1) | 10,000 ordinary shares | $23.1K | 0 | |
traded | John Charles O'Hara Chief Financial Officer | SalePre-arranged (10b5-1) | 20,000 ordinary shares | $48.7K | 245,595 | |
traded | Franck Jean Buonanno Vice-President, Global Sales | SalePre-arranged (10b5-1) | 10,000 ordinary shares | $23.5K | 10,000 | |
traded | John Charles O'Hara Chief Financial Officer | SalePre-arranged (10b5-1) | 30,000 ordinary shares | $88.1K | 165,183 | |
traded | John Charles O'Hara Chief Financial Officer | SalePre-arranged (10b5-1) | 20,000 ordinary shares | $60.2K | 195,183 | |
traded | Nathalie Claude Odile Verjus Company Secretary | SalePre-arranged (10b5-1) | 5,000 ordinary shares | $15.1K | 185,000 |
Shares are as filed (ordinary shares or ADS); values are as converted to US$ in the filing.
GET /stocks/filings/vX/form-4?tickers=LAES&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"LAES"
],
"issuer_cik": "0001951222",
"owner_cik": "0002114888",
"accession_number": "0002114888-26-000017",
"form_type": "4",
"filing_date": "2026-10-07",
"period_of_report": "2026-10-05",
"issuer_name": "SEALSQ Corp",
"issuer_trading_symbol": "LAES",
"owner_name": "Enguent Jean-Pierre",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Vice President, R&DSS",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Ordinary Shares",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-06",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 35000,
"transaction_price_per_share": 2.4553,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 0,
"transaction_value": 85935.5,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 13, 2025."
},
{
"id": "F2",
"description": "The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.42 to $2.49, inclusive. The reporting person undertakes to provide to SEALSQ Corp, any security holder of SEALSQ Corp, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4."
}
]
},
{
"tickers": [
"LAES"
],
"issuer_cik": "0001951222",
"owner_cik": "0002114888",
"accession_number": "0002114888-26-000015",
"form_type": "4",
"filing_date": "2026-09-03",
"period_of_report": "2026-09-01",
"issuer_name": "SEALSQ Corp",
"issuer_trading_symbol": "LAES",
"owner_name": "Enguent Jean-Pierre",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Vice President, R&DSS",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Ordinary Shares",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-09-03",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 15000,
"transaction_price_per_share": 2.402,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 0,
"transaction_value": 36030,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 13, 2025."
},
{
"id": "F2",
"description": "The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.38 to $2.4253, inclusive. The reporting person undertakes to provide to SEALSQ Corp, any security holder of SEALSQ Corp, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 14 records
- Option exercises13 records
- Tax withholding1 record
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
Frequently asked questions
Has SEALSQ Corp's CEO sold stock?
Yes. Carlos Moreira (CEO) sold 31,444 shares ($112.3K) between May 2026 and Jun 2026, all under a pre-arranged 10b5-1 plan.
How current is LAES’s insider data?
These are LAES Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
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This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for LAES every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
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