Welcome to our dedicated page for Sealsq SEC filings (Ticker: LAES), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
SEALSQ Corp filings document the disclosures of a British Virgin Islands foreign private issuer developing semiconductor, PKI and post-quantum security products. Its Form 6-K reports furnish annual report materials, operating and financial results, AGM notices and outcomes, governance votes, and product or certification updates for secure-element and post-quantum hardware programs.
The filing record also covers registered direct offering documents, securities purchase and placement agency agreements, ordinary shares, pre-funded warrants, Class E warrants, shelf registration references and equity incentive registration statements. These disclosures describe capital-structure changes, material agreements, liquidity and revenue commentary, board composition, and shareholder voting mechanics.
SEALSQ Corp Vice-President of Global Sales Franck Jean Buonanno sold 10,000 Ordinary Shares of LAES in an open-market transaction. The shares were sold at $2.35 per share, and he now directly holds 10,000 Ordinary Shares following the sale. According to the footnote, these sales were effected under a pre-arranged Rule 10b5-1 trading plan adopted on October 13, 2025, indicating they were scheduled in advance rather than timed discretionarily.
SEALSQ Corp reports audited FY 2025 results and updates its quantum-security strategy and 2026 outlook. Net sales rose to $18.3M in 2025 from $11.0M in 2024, a 66% increase, while net loss widened to $34.2M from $21.2M as the company invested heavily in R&D, sales, and administration. SEALSQ ended 2025 with cash and cash equivalents of $417.7M, up sharply from $84.6M, and total assets of $504.2M.
For Q1 2026, revenue is expected to exceed $4M, more than 100% above Q1 2025. The company reaffirms FY 2026 revenue growth guidance of between 50% and 100% year-over-year and cites an active business pipeline of about $200M for 2026–2029, including over $60M tied to QS7001 and QVault TPM programs. SEALSQ highlights progress toward Common Criteria EAL5+ and other certifications for its QS7001 Quantum Shield chip, growing commercial traction, and the 2025 acquisition of IC’ALPS, which helped lift ASIC revenues from $1.3M in Q3 2025 to $2.3M in Q4 2025.
SEALSQ Corp Chief Financial Officer John Charles O'Hara received and exercised stock options linked to the company’s ordinary shares. He was granted 100,000 employee stock options with a $0.01 exercise price per share and then exercised all of them to acquire 100,000 ordinary shares.
Following these transactions, his direct ownership in SEALSQ increased to 265,595 ordinary shares. A footnote states that the option exercise was carried out under a pre-arranged Rule 10b5-1 trading plan adopted by O'Hara on October 17, 2025, indicating the timing was set in advance.
SEALSQ Corp, a British Virgin Islands holding company focused on secure semiconductor technology, files its annual report describing a fabless model and Nasdaq listing of its Ordinary Shares under “LAES” since May 24, 2023. It targets secure elements, IoT security and post-quantum cryptography.
The company highlights extensive risks: cyclical and highly competitive semiconductor markets, rapid technology shifts, and heavy dependence on successful rollout of quantum‑resistant chips, with post‑quantum products commercially released in Q4 2025 and first revenues expected in the second half of 2026.
SEALSQ also discloses reliance on a few major customers and key partners such as Cisco and third‑party foundries and OSAT providers, along with significant cybersecurity, regulatory, cryptography‑standards and geopolitical risks that could affect its operations, cash flows and growth plans.
SEALSQ Corp Chief Executive Officer Carlos Moreira filed an amended Form 3 to correct his reported holdings of Ordinary Shares. The amendment shows he directly holds 727,659 Ordinary Shares, including 120,262 shares that were inadvertently omitted from his original Form 3.
SEALSQ Corp director and CFO John Charles O'Hara filed an amended Form 3 to correct his reported holdings of Ordinary Shares. The amendment establishes a revised baseline of 215,595 Ordinary Shares held directly. A footnote explains that 412 Ordinary Shares were inadvertently omitted from his original Form 3 and from two subsequent Forms 4, and that past running balances of beneficial ownership should be recalculated using this corrected starting figure.
SEALSQ Corp Vice-President, Global Sales Franck Jean Buonanno exercised employee stock options to acquire 15,000 ordinary shares. The options had an exercise price of $0.01 per share. Following this derivative exercise, he directly holds a total of 20,000 ordinary shares. No open-market sale or gift was reported in this filing, indicating an exercise-and-hold transaction rather than a sale.
SEALSQ Corp has signed a non-binding Letter of Intent to acquire 100% of Miraex SA, a Switzerland-based developer of photonics-based quantum interconnect solutions headquartered at the EPFL Innovation Park. The LOI grants a 60-day exclusivity period for confirmatory due diligence and negotiation of definitive agreements and is binding on Miraex.
The company highlights that completion, timing and benefits of the proposed acquisition are uncertain and subject to multiple risks and conditions. The information in this report is also incorporated by reference into SEALSQ’s effective Form F-3 and Form S-8 registration statements and related prospectuses.
SEALSQ Corp filed a Form 6-K reporting that it has signed a binding Letter of Intent on the part of Miraex SA to acquire 100% of Miraex’s equity. Miraex is a Swiss photonics-based quantum interconnect company focused on Thin Film Lithium Tantalate Photonic Integrated Circuits.
The LOI includes a 60-day exclusivity period for confirmatory due diligence and negotiation of definitive agreements, with closing targeted by the end of June 2026, subject to customary conditions and regulatory processes. The acquisition is planned through the SEALSQ Quantum Fund to help complete SEALSQ’s quantum vertical stack and support its Quantum Spatial Orbital Cloud initiative.