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WISeKey International Holding AG files as a foreign private issuer, with Form 6-K reports and Form 20-F annual materials documenting its cybersecurity, digital identity, IoT and post-quantum semiconductor activities. The filings include press-release exhibits, annual reports, operating results, liquidity, consolidated SEALSQ disclosures, and updates on secure microcontrollers, PKI, post-quantum hardware and software, QS7001 and QVault TPM programs.
Regulatory materials also record corporate and governance matters, shareholder communications, material agreements, subsidiary developments, facility-related agreements, and risk-related disclosures tied to semiconductors, quantum-resistant cryptography, satellite infrastructure and machine-to-machine digital identity initiatives.
WISeKey International Holding Ltd reports that its WISeSat subsidiary has confidentially submitted an amended draft registration statement on Form F-4 to the SEC on May 29, 2026. This filing supports a previously announced proposed business combination among WISeSat, Columbus Acquisition Corp, Pubco and related entities.
Upon completion of the transaction, WISeSat and Columbus Acquisition Corp are expected to become subsidiaries of Pubco, with the combined company anticipated to trade on Nasdaq under the ticker “WSAT,” subject to regulatory effectiveness, Nasdaq listing approval and Columbus Acquisition Corp shareholder approval.
WISeKey International Holding’s Form 6-K highlights two SEALSQ Corp transactions that expand its post-quantum and financial-compliance capabilities. SEALSQ has acquired a majority stake in Swiss fintech Wecan Group and agreed to invest CHF 5 million to speed development of an AI-powered, post-quantum compliance “copilot” for global financial institutions.
SEALSQ also acquired 100% of Miraex SA, a Swiss photonics company whose Thin Film Lithium Tantalate photonic integrated circuits form a quantum interconnect layer between processors and communication networks. Both deals are funded through SEALSQ’s internal Quantum Fund, which has $200 million of approved capital and has deployed over $65 million to build a vertically integrated “Quantum Sovereign Stack.”
WISeKey International Holding Ltd has called its 2026 Annual General Meeting for June 29, 2026 in Zurich, with shareholders able to attend in person or vote via proxies and electronic instructions. The Board asks shareholders to approve the 2025 Annual Report and audited consolidated and statutory financial statements, for which auditor BDO SA issued unqualified opinions.
Shareholders are asked to discharge the Board and Executive Management from liability for 2025 and to carry forward a total accumulated loss of CHF 82,633,720, including a 2025 net loss of CHF 1,801,504. Proposals include re-electing seven current directors and electing Andrew Forson as a new director, re-electing Carlos Moreira as Chairman, re-electing three members of the Nomination & Compensation Committee, confirming BDO SA as auditor, and re-electing Anwaltskanzlei Keller AG as Independent Proxy.
The agenda also covers an advisory vote on the 2025 compensation report and several binding compensation votes: a maximum aggregate Board compensation of CHF 2,000,000 for the 2026/2027 term, a maximum Executive Management compensation of CHF 7,500,000 for 2027, an increase in the previously approved 2026 Executive Management cap from CHF 6,000,000 to CHF 15,000,000, and additional 2025 Executive compensation of CHF 1,530,301 in SEALSQ share options. The Board also reiterates its intention to redomicile the company from Switzerland to the British Virgin Islands via a cross-border merger, subject to regulatory and shareholder approvals expected to be sought in the third quarter of 2026.
WISeKey International Holding Ltd reports strong growth and a major shift toward scaling its quantum-secure platform. For 2025, the group delivered $19.3 million in revenue, a 62% year-over-year increase, with SEALSQ growing 66%. Q4 2025 revenue reached $8 million, doubling Q4 2024, while Q1 2026 revenue was $4.2 million, up 200% versus Q1 2025.
The company ended 2025 with $429 million in cash and short-term investments, rising to over $535 million as of April 2026, supporting its capital-intensive strategy. SEALSQ’s commercial pipeline exceeds $200 million for 2026–2029, and management reaffirms expectations of 50% to 100% revenue growth in 2026, driven mainly by SEALSQ.
WISeKey highlights integration of its five pillars into a single quantum-secure ecosystem, progress toward a 100-satellite WISeSat constellation with 21 satellites launched and 14 operational, and a $200 million SEALSQ Quantum Fund for strategic investments. The company positions itself to benefit from tightening global post-quantum security requirements and the rollout of its QS7001 quantum-resistant semiconductor, expected to begin production revenues in late 2026.
WISeKey International Holding Ltd, a foreign private issuer based in Zug, Switzerland, submitted a Form 6-K for May 2026. The filing indicates that the company files its annual reports under Form 20-F and furnishes its 2025 Annual Report as Exhibit 99.1.
The report is signed on behalf of the company by Chief Executive Officer Carlos Moreira and Chief Financial Officer John O’Hara.
WISeKey International Holding Ltd reported audited results for Q4 and full year 2025, showing strong top-line momentum but continued losses. Net sales reached 19,289 thousand in 2025, up from 11,875 thousand in 2024, a +62% increase, with Q4 2025 revenue doubling to $8M.
The group recorded a 2025 net loss of 38,154 thousand, though the net loss attributable to WISeKey shareholders narrowed to 6,072 thousand. Cash and cash equivalents surged to 429,244 thousand as of December 31, 2025, compared with 90,600 thousand a year earlier, supporting heavy R&D and strategic investments.
Subsidiary SEALSQ delivered 66% revenue growth in 2025 and has deployed over $20M into quantum-related acquisitions and partnerships, within an approved capital allocation raised to $200M by April 30, 2026. WISeKey reported a Q1 2026 revenue of $4.2M, over 200% above Q1 2025, and expects FY 2026 revenue growth of +50% to +100%, mainly driven by SEALSQ.
WISeKey International Holding files its annual report describing a security-focused technology group heavily dependent on subsidiary SEALSQ’s semiconductor business. For 2025, SEALSQ generated 95% of WISeKey’s revenue, exposing results to semiconductor cyclicality, pricing pressure, and customer demand swings.
The report highlights execution risk around next-generation post-quantum cryptography chips, which still face qualification and Common Criteria certification, with commercialization expected from the second half of 2026. It also details reliance on third‑party foundries and packaging partners, concentrated customers such as Cisco, extensive cybersecurity and cryptography risks, evolving data-privacy and encryption regulation, and potential disruption from geopolitical tensions and shifting U.S. tariff policy affecting global semiconductor supply chains.
SEALSQ Corp, a subsidiary of WISeKey International Holding, reported preliminary Q1 2026 revenue of about $4.1 million, up from $1.3 million in Q1 2025, showing growth of more than 200% as demand rose across its product portfolio.
The company reaffirmed its full-year 2026 revenue guidance, expecting 50% to 100% year-over-year growth, supported by expanding post-quantum semiconductor and cybersecurity opportunities. SEALSQ ended the quarter with over $525 million in cash and short-term investments after completing a $125 million registered direct offering.
Management highlights an active business pipeline exceeding $200 million in potential revenue for 2026–2029, including more than $60 million tied to its QS7001 post-quantum secure element and QVault TPM programs. Certification work for QS7001, including key Common Criteria and NIST-related evaluations, is progressing positively and supports customer adoption efforts.
WISeKey International Holding furnished a Form 6-K featuring SEALSQ Corp’s audited FY 2025 results and 2026 outlook. SEALSQ reported 2025 net sales of $18,252k, up 66% year over year, but an operating loss of $39,799k and a net loss of $34,194k.
Cash and cash equivalents rose sharply to $417,657k as of December 31, 2025, with total assets of $504,179k and shareholders’ equity of $461,508k. Q1 2026 revenue is expected to exceed $4,000k, more than doubling Q1 2025, and FY 2026 revenue is guided to grow between 50% and 100%.
SEALSQ highlights a business pipeline exceeding $200,000k for 2026–2029, including over $60,000k tied to QS7001 and QVault TPM programs, progress toward Common Criteria EAL5+ and FIPS 140-3 certifications, and strategic moves such as the IC’ALPS acquisition and a Letter of Intent to acquire Miraex.
Wisekey International Holding S.A. filed an initial insider ownership report for officer David Levinger, whose title is listed as BDM WISeSat. This Form 3 does not show any stock transactions, exercises, gifts, or tax withholdings and functions as a baseline disclosure of his status as an officer.