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 (LAES) said its QS7001 V1 secure element completed the technical evaluation phase of Common Criteria EAL5+ certification, with all physical and functional security tests receiving PASS results. The evaluation was performed by SERMA Safety & Security, a laboratory licensed by ANSSI.
The certification process now includes site audits scheduled for January 2027, covering development, production and engineering assembly sites. After the audits are passed, the evaluation report is expected to be submitted to ANSSI for formal certificate issuance, which SEALSQ targets for 2027. A full post-quantum evaluation of QS7001 V2 is expected in January 2027. As of September 30, 2026, 42 prospective customers and partners were evaluating QS7001 and QVault TPM.
SEALSQ Corp (LAES) entered into a letter of intent with WISeSat.Space AG for a proposed acquisition of satellite capacity associated with 12 satellites, plus access to mission control, ground-segment and operational-support services. The stated consideration is approximately $15 million; payment terms and delivery milestones are to be agreed in a definitive agreement.
Closing is subject to a definitive agreement and approval by both parties’ boards. Under the proposed operating model, WISeSat.Space would supply and launch the satellites, provide access to the initial constellation, and operate the ground station, mission control and related infrastructure; SEALSQ would develop and commercialize QSOC’s security-services layer. Customer-service deployment depends on technical qualification, infrastructure readiness, regulatory authorizations and customer requirements. The transaction is identified as related-party: Carlos Moreira is CEO of SEALSQ, WISeSat.Space and WISeQey, and the company said he and WISeQey may have interests differing from or additional to those of other SEALSQ shareholders. The broader roadmap envisages progressive deployment of up to 100 satellites through 2033, subject to financing, technical validation, regulatory approvals, launch availability and commercial agreements.
SEALSQ Corp designated previously furnished Form 6-K reports for incorporation by reference into its Form F-3 registration statements, their base prospectuses and any outstanding prospectus supplements, except where later documents or reports supersede them. The designated materials include reports furnished May 8, August 10 and 26, September 14 and 25, and October 2, 2026; Exhibit 99.2 to the September 11 report, excluding Sections 1.1, 1.2, 2.2.11, 2.2.12, 2.3 and 3.5; and the October 14 report, excluding Exhibit 99.1. No other information from those reports or their exhibits is incorporated by this designation.
SEALSQ Corp (LAES) announced preliminary, unaudited revenue of $16.3 million for the nine months ended September 30, 2026, up 65% year on year. It reaffirmed FY 2026 revenue guidance of approximately $27 million to $36 million, representing approximately 50% to 100% growth compared with audited FY 2025 revenue of $18 million. Based on preliminary nine-month revenue, the company expects fourth-quarter 2026 revenue of $11 million to $20 million, versus $8.4 million in Q4 2025.
SEALSQ expects a more significant contribution from post-quantum product lines in 2027 and beyond as customers complete technical integration and move into volume production; timing remains subject to laboratory review, certification, customer qualification and procurement. Chief Executive Officer Carlos Moreira cited approximately $465 million in liquidity.
SEALSQ Corp (LAES) entered into an agreement for a proposed business combination that would place GigCapital8 and Quantisimo under newly formed Quantisimo Holdings Corp. (“PubCo”). GigCapital8 would merge first, followed by Quantisimo; both would survive as PubCo subsidiaries. Completion depends on shareholder approvals and other closing conditions.
Quantisimo’s shareholders are to receive 66,610,000 PubCo shares in aggregate. The transaction requires at least $15,000,000 in cash available to PubCo at closing, from GigCapital8 cash after redemptions and any financing actually received, plus a contribution from Quantisimo’s shareholders. SEALSQ agreed to use commercially reasonable efforts to fund the Company Cash Contribution; contributing shareholders would receive additional PubCo ordinary shares at $10.00 per share. Class F shares would carry 49.999999% of PubCo’s total voting power. Closing is expected in the first quarter of 2027, subject to conditions.
SEALSQ Corp Vice President, R&DSS Jean-Pierre Enguent reported a sale of 35,000 ordinary shares on October 6, 2026, at a weighted average price of $2.4553 per share under a Rule 10b5-1 trading plan adopted October 13, 2025.
On October 5, 2026, he received an award of 50,000 employee stock options and exercised options covering 35,000 ordinary shares at $0.01 per share. The option exercise was also under the Rule 10b5-1 plan.
SEALSQ Corp (LAES) director Peter Ward received two employee stock option awards on October 5, 2026: 3,582 options to buy ordinary shares, exercisable at $0.01 per share and expiring November 9, 2032, and 4,686 options to buy ordinary shares, exercisable at $0.01 per share and expiring September 23, 2033.
SEALSQ Corp director David Alexander Fergusson received two Employee Stock Option Plan awards on September 25, 2026, covering rights to buy 3,424 and 14,063 ordinary shares. Both awards have an exercise price of $0.01 per share; the 3,424-share award expires November 9, 2032, and the 14,063-share award expires September 23, 2033.
SEALSQ Corp director Eric Adrien Pellaton received two employee stock option awards on September 25, 2026: one covering 10,747 ordinary shares and another covering 14,063 ordinary shares. These are rights to buy ordinary shares, rather than reported purchases of the underlying shares.
SEALSQ Corp completed the WISeSat.Space business combination and its PIPE investment on October 1, 2026. In exchange for its SpaceAIQ shares, SEALSQ received 1,040,478 WISeSat.Space Ordinary Shares and 1,040,478 WISeSat.Space Class F Shares.
For the PIPE investment, WISeSat.Space issued SEALSQ 926,784 Ordinary Shares at $10.79 per share. The agreement rounds down fractional shares and provides for the related cash to be returned to SEALSQ. It may provide additional Ordinary Shares if WISeSat.Space's market price is below the purchase price on the 60th day after closing. SEALSQ is subject to customary lock-up restrictions following closing. Trading under SAIQ began on Nasdaq on October 2, 2026.