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 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.
SEALSQ Corp (LAES) revised milestones for its post-quantum semiconductor certification timelines following regulatory and technical developments. The update addresses targeted timing for Hardware Common Criteria Evaluation Test Reports for the QS7001 product line and TCG certifications for the QVault TPM product line. All product versions are available as engineering samples.
SEALSQ Corp (LAES) announced that its VaultIC408 version 1.2.4 has active NIST FIPS 140-3 Level 3 validation under Certificate No. 5463. NIST issued the initial validation on August 5, 2026, and the certificate is active through August 4, 2031. The validated product is identified as a single-chip hardware cryptographic module.
SEALSQ says the validation is expected to support commercial expansion in the United States and international markets. It applies to VaultIC408’s conventional cryptographic functions and approved configuration; it does not validate other SEALSQ products or post-quantum algorithms not identified in the certificate. SEALSQ also describes certification roadmaps for its QS7001 secure element and QVault TPM family, with TCG and FIPS 140-3 milestones extending through 2027.
SEALSQ Corp (LAES) reported sharply higher scale for the six months ended June 30, 2026, with net sales of $11.2 million, up from $4.8 million a year earlier, driven by its semiconductor, quantum technology and cybersecurity offerings. Despite this growth, SEALSQ recorded an operating loss of $32.2 million and a net loss of $27.8 million, wider than the prior period. Operating cash flow was negative $23.7 million, but the company strengthened its balance sheet through $125.0 million of common stock issuance, ending with $486.1 million in cash and restricted cash and working capital of $485.7 million. Management states that, based on cash projections through September 30, 2027, SEALSQ has sufficient liquidity and prepares the accounts on a going concern basis.
SEALSQ completed two strategic transactions on June 1, 2026: a controlling 55.5% stake in Wecan Group SA, accounted for as a business combination with $6.2 million of goodwill, and a $5.8 million asset acquisition of Miraex SA focused on quantum photonic technology. The company also invested $7.0 million in EeroQ SAFEs and about $17.5 million in Quobly SAS preferred shares to deepen its quantum-computing ecosystem. Total assets rose to $614.6 million and total equity to $562.1 million, including growing noncontrolling interests from Wecan.
SEALSQ Corp (LAES) reported H1 2026 net sales of $11.2 million, an increase of 131% from $4.8 million in H1 2025, driven by renewed demand for Vault-IC secure elements, growth in PKI subscriptions and digital identity services, and contributions from acquired IC’Alps.
Gross profit rose to $5.4 million, up 233%, with higher-margin ASIC design revenue improving gross margin, but operating loss widened to $32.2 million and net loss to $27.8 million as SEALSQ increased R&D, selling, and G&A spending to support its post-quantum roadmap and Sovereign Vertical Stack. EBITDA was a loss of $29.5 million. Cash, cash equivalents and restricted cash totaled $486.1 million at June 30, 2026, within total assets of $614.6 million and shareholders’ equity of $562.1 million.
Management reaffirmed FY2026 revenue guidance of $27–36 million, implying 50–100% growth over audited FY2025 revenue of $18.3 million, and highlighted an active commercial pipeline of more than $225 million in potential revenue through 2029, including over $100 million tied to post-quantum projects such as QS7001 and QVault TPM.
SEALSQ Corp (LAES) insider Enguent Jean-Pierre, Vice President, R&DSS, reported option-related trades in Ordinary Shares. On September 1, 2026 he exercised options for 15,000 shares at an exercise price of $0.01 per share, and on September 3, 2026 he sold 15,000 shares at a weighted average price of $2.402 per share in multiple transactions between $2.38 and $2.4253. Both the option exercise and the subsequent sales were effected under a Rule 10b5-1 trading plan adopted on October 13, 2025.
SEALSQ Corp (LAES) reports that WISeKey International Holding Ltd. has appointed Alexander Hirsch as Chief Marketing Officer of the WISeKey Group and its affiliated companies, including SEALSQ. Hirsch will serve as CMO of both SEALSQ and WISeKey, leading global marketing, brand strategy, corporate communications, and commercial go-to-market execution across WISeKey’s subsidiary ecosystem.
Hirsch, 43, became Group CMO for WISeKey and SEALSQ on August 17, 2026, bringing over 15 years of international marketing experience from roles at Salesforce and the World Economic Forum. The 6-K also states that this information is incorporated by reference into SEALSQ’s existing Form F-3 and Form S-8 registration statements and related base and supplemental prospectuses.
SEALSQ Corp (LAES) had its Chief Marketing Officer, Hirsch Alexander Sebastian, file an initial Form 3 as a reporting person. The filing lists his officer role but does not report any equity transactions or derivative positions, and no holdings are detailed in this statement.
SEALSQ Corp (symbol: LAES) is the issuer of record for a Form 6-K filing submitted to the SEC.
SEALSQ Corp (ticker LAES) reports the initial insider status of Brau Daniel Frederic Alexandre, who serves as Chief Quantum Officer. This Form 3 data set lists no reported purchases, sales, gifts, exercises, or derivative positions for this insider.