LAESNasdaqSemiconductors & Related DevicesFiscal year ends December 31
SEALSQ Corp
Financials through fiscal 2025, year ended Dec 31, 2025Last filing: 20-F on Mar 31, 2026
$1.67−0.12 (-6.70%)
Close on Oct 19, 2026
- Market cap
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- P/E (TTM)
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- Dividend yield
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Ownership
Who owns Sealsq's shares
Held by institutions
–
Shares held, 13F filers
Institutional holders
–
Net institutional buying
–
Insider trades, 12 months
0 buys · 37 sales
Net sold $1.04M
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| CVI Investments, Inc. | 24,377,058 | 9.90% | 13G (passive) amendment | Mar 31, 2026 |
| Heights Capital Management, Inc. | 19,689,323 | 9.90% | 13G (passive) amendment | Dec 31, 2025 |
| Tony Moore | 12,457,698 | 5.60% | 13G (passive) | Mar 31, 2026 |
| Susquehanna Securities, LLC | 12,134,793 | 5.40% | 13G (passive) amendment | Mar 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Carlos Moreira | Chief Executive Officer, Director | 703,837 | 0.37% | Jun 5, 2026 |
| John Charles O'Hara | Chief Financial Officer, Director | 250,435 | 0.13% | Jun 5, 2026 |
| Jean-Pierre Enguent | Vice President, R&DSS | 0 | – | Sep 3, 2026 |
| Alexander Sebastian Hirsch | Chief Marketing Officer | – | – | Aug 26, 2026 |
| Daniel Frederic Alexandre Brau | Chief Quantum Officer | – | – | Aug 17, 2026 |
| Franck Jean Buonanno | Vice-President, Global Sales | 10,000 | 0.01% | May 15, 2026 |
| Moreira Andreas Feuardent | Chief Innovation Officer | 17,466 | 0.01% | Apr 8, 2026 |
| Nathalie Claude Odile Verjus | Company Secretary | 185,004 | 0.10% | Mar 19, 2026 |
| Jean-Luc Pierre-Marie Triouleyre | General Manager, IC'Alps | – | – | Mar 18, 2026 |
| Loic Jean-Claude Hamon | COO SEALSQ USA | – | – | Mar 18, 2026 |
| Bernard Vian | General Manager, SEALSQ France | – | – | Mar 18, 2026 |
| Peter Ward | Director | 270,557 | 0.14% | Jun 18, 2026 |
| Ruma Bose | Director | – | – | Mar 19, 2026 |
| David Alexander Fergusson | Director | 1,581 | 0.00% | Mar 18, 2026 |
| Cristina Dolan | Director | 85,081 | 0.04% | Mar 18, 2026 |
| Eric Adrien Pellaton | Director | 3,087 | 0.00% | Mar 18, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Jean-Pierre Enguent Vice President, R&DSS | Sep 3, 2026 | Sale(10b5-1 plan) | −15,000 | $2.40 | $36.00K | 0 |
| Jean-Pierre Enguent Vice President, R&DSS | Sep 1, 2026 | Option exercise | +15,000 | $0.01 | $150 | 15,000 |
| Jean-Pierre Enguent Vice President, R&DSS | Aug 5, 2026 | Sale(10b5-1 plan) | −15,000 | $2.46 | $36.90K | 0 |
| Jean-Pierre Enguent Vice President, R&DSS | Aug 3, 2026 | Option exercise | +15,000 | $0.01 | $150 | 15,000 |
| Jean-Pierre Enguent Vice President, R&DSS | Jul 8, 2026 | Sale(10b5-1 plan) | −15,000 | $2.82 | $42.30K | 0 |
| Jean-Pierre Enguent Vice President, R&DSS | Jul 6, 2026 | Option exercise | +15,000 | $0.01 | $150 | 15,000 |
| Peter Ward Director | Jun 16, 2026 | Tax withholding | −96,530 | $3.07 | $296.35K | 270,531 |
| Peter Ward Director | Jun 16, 2026 | Option exercise | +366,746 | $0.01 | $3.67K | 367,061 |
| Carlos Moreira Chief Executive Officer, Director | Jun 5, 2026 | Sale(10b5-1 plan) | −300 | $3.51 | $1.05K | 696,215 |
| John Charles O'Hara Chief Financial Officer, Director | Jun 5, 2026 | Sale(10b5-1 plan) | −143 | $3.51 | $502 | 250,431 |
| John Charles O'Hara Chief Financial Officer, Director | Jun 3, 2026 | Sale(10b5-1 plan) | −5,582 | $3.53 | $19.70K | 250,574 |
| Jean-Pierre Enguent Vice President, R&DSS | Jun 3, 2026 | Sale(10b5-1 plan) | −15,000 | $3.51 | $52.65K | 0 |
| Carlos Moreira Chief Executive Officer, Director | Jun 3, 2026 | Sale(10b5-1 plan) | −7,005 | $3.53 | $24.73K | 696,515 |
| John Charles O'Hara Chief Financial Officer, Director | Jun 2, 2026 | Sale(10b5-1 plan) | −10,000 | $3.69 | $36.90K | 256,156 |
| Carlos Moreira Chief Executive Officer, Director | Jun 2, 2026 | Sale(10b5-1 plan) | −10,000 | $3.69 | $36.90K | 703,520 |
| Jean-Pierre Enguent Vice President, R&DSS | Jun 1, 2026 | Option exercise | +15,000 | $0.01 | $150 | 15,000 |
| Carlos Moreira Chief Executive Officer, Director | May 29, 2026 | Sale(10b5-1 plan) | −10,000 | $3.51 | $35.10K | 713,520 |
| John Charles O'Hara Chief Financial Officer, Director | May 29, 2026 | Sale(10b5-1 plan) | −10,000 | $3.51 | $35.10K | 266,156 |
| Carlos Moreira Chief Executive Officer, Director | May 27, 2026 | Sale(10b5-1 plan) | −4,139 | $3.50 | $14.49K | 723,520 |
| John Charles O'Hara Chief Financial Officer, Director | May 27, 2026 | Sale(10b5-1 plan) | −4,689 | $3.50 | $16.41K | 276,156 |
| Franck Jean Buonanno Vice-President, Global Sales | May 14, 2026 | Sale(10b5-1 plan) | −20,000 | $2.90 | $58.00K | 10,000 |
| Franck Jean Buonanno Vice-President, Global Sales | May 11, 2026 | Option exercise | +20,000 | $0.01 | $200 | 30,000 |
| Jean-Pierre Enguent Vice President, R&DSS | May 6, 2026 | Sale(10b5-1 plan) | −15,000 | $3.13 | $46.95K | 0 |
| Jean-Pierre Enguent Vice President, R&DSS | May 4, 2026 | Option exercise | +15,000 | $0.01 | $150 | 15,000 |
| John Charles O'Hara Chief Financial Officer, Director | Apr 24, 2026 | Sale(10b5-1 plan) | −5,250 | $2.91 | $15.28K | 280,845 |
| John Charles O'Hara Chief Financial Officer, Director | Apr 23, 2026 | Sale(10b5-1 plan) | −10,000 | $2.88 | $28.80K | 286,095 |
| John Charles O'Hara Chief Financial Officer, Director | Apr 22, 2026 | Sale(10b5-1 plan) | −10,000 | $3.06 | $30.60K | 296,095 |
| John Charles O'Hara Chief Financial Officer, Director | Apr 21, 2026 | Sale(10b5-1 plan) | −10,000 | $3.04 | $30.40K | 306,095 |
| John Charles O'Hara Chief Financial Officer, Director | Apr 20, 2026 | Sale(10b5-1 plan) | −10,000 | $2.79 | $27.90K | 316,095 |
| John Charles O'Hara Chief Financial Officer, Director | Apr 17, 2026 | Sale(10b5-1 plan) | −10,000 | $2.72 | $27.20K | 326,095 |
| John Charles O'Hara Chief Financial Officer, Director | Apr 16, 2026 | Sale(10b5-1 plan) | −10,000 | $2.69 | $26.90K | 336,095 |
| John Charles O'Hara Chief Financial Officer, Director | Apr 13, 2026 | Option exercise | +130,500 | $0.01 | $1.31K | 346,095 |
| John Charles O'Hara Chief Financial Officer, Director | Apr 9, 2026 | Sale(10b5-1 plan) | −10,000 | $2.08 | $20.80K | 215,595 |
| Jean-Pierre Enguent Vice President, R&DSS | Apr 8, 2026 | Sale(10b5-1 plan) | −15,000 | $2.20 | $33.00K | 0 |
| John Charles O'Hara Chief Financial Officer, Director | Apr 8, 2026 | Sale(10b5-1 plan) | −10,000 | $2.20 | $22.00K | 225,595 |
| John Charles O'Hara Chief Financial Officer, Director | Apr 7, 2026 | Sale(10b5-1 plan) | −10,000 | $2.14 | $21.40K | 235,595 |
| Moreira Andreas Feuardent Chief Innovation Officer | Apr 7, 2026 | Sale(10b5-1 plan) | −10,000 | $2.31 | $23.10K | 0 |
| Moreira Andreas Feuardent Chief Innovation Officer | Apr 7, 2026 | Option exercise | +10,000 | $0.01 | $100 | 10,000 |
| Jean-Pierre Enguent Vice President, R&DSS | Apr 6, 2026 | Option exercise | +15,000 | $0.01 | $150 | 15,000 |
| John Charles O'Hara Chief Financial Officer, Director | Apr 6, 2026 | Sale(10b5-1 plan) | −10,000 | $2.42 | $24.20K | 245,595 |
| John Charles O'Hara Chief Financial Officer, Director | Apr 2, 2026 | Sale(10b5-1 plan) | −10,000 | $2.45 | $24.50K | 255,595 |
| Franck Jean Buonanno Vice-President, Global Sales | Mar 31, 2026 | Sale(10b5-1 plan) | −10,000 | $2.35 | $23.50K | 10,000 |
| John Charles O'Hara Chief Financial Officer, Director | Mar 30, 2026 | Option exercise | +100,000 | $0.01 | $1.00K | 265,595 |
| Franck Jean Buonanno Vice-President, Global Sales | Mar 27, 2026 | Option exercise | +15,000 | $0.01 | $150 | 20,000 |
| John Charles O'Hara Chief Financial Officer, Director | Mar 25, 2026 | Sale(10b5-1 plan) | −10,000 | $2.92 | $29.20K | 165,183 |
| John Charles O'Hara Chief Financial Officer, Director | Mar 24, 2026 | Sale(10b5-1 plan) | −10,000 | $2.90 | $29.00K | 175,183 |
| John Charles O'Hara Chief Financial Officer, Director | Mar 23, 2026 | Sale(10b5-1 plan) | −10,000 | $2.99 | $29.90K | 185,183 |
| John Charles O'Hara Chief Financial Officer, Director | Mar 20, 2026 | Sale(10b5-1 plan) | −10,000 | $3.00 | $30.00K | 195,183 |
| John Charles O'Hara Chief Financial Officer, Director | Mar 19, 2026 | Sale(10b5-1 plan) | −10,000 | $3.02 | $30.20K | 205,183 |
| Nathalie Claude Odile Verjus Company Secretary | Mar 18, 2026 | Sale(10b5-1 plan) | −5,000 | $3.03 | $15.15K | 185,000 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.