WISeKey International Holding Ltd filings document its foreign private issuer reporting, annual report materials, and Form 6-K updates for cybersecurity, blockchain, IoT, and post-quantum semiconductor operations.
The company’s regulatory disclosures include audited annual results, shareholder communications, and exhibits tied to SEALSQ Corp., whose activities include semiconductors, PKI, post-quantum hardware and software products, and secure element technology. The filings also cover consolidated results, liquidity disclosures, governance certifications, and material press releases furnished under Exchange Act Rule 13a-16 or 15d-16.
WISeQey Corp. registered a shelf offering of up to $100 million in aggregate initial offering price, covering ordinary shares, warrants, subscription rights and units. It may sell securities after effectiveness; selling shareholders named in supplements may resell securities, and WISeQey will receive no proceeds from those resales. If public float is below $75 million, primary sales under the shelf are limited to one-third of public float in any 12-calendar-month period.
Preliminary, unaudited consolidated revenue for the nine months ended September 30, 2026 was approximately $17 million, up approximately 55% from $11 million in the prior-year period. Consolidated cash, cash equivalents and restricted cash were approximately $471.0 million as of September 30, 2026. SEALSQ generated 95% of WISeQey’s revenue in 2025.
A proposed Quantisimo transaction is expected to close in the first quarter of 2027, subject to closing conditions; WISeQey and SEALSQ would receive 66,610,000 shares in aggregate. Separately, a letter of intent covers SEALSQ’s proposed purchase from WISeSat of satellite capacity associated with 12 satellites for estimated consideration of approximately $15 million, subject to definitive terms.
WISeQey Corp. reported preliminary unaudited consolidated revenue of $17 million for the nine months ended September 30, 2026, versus $11 million in the prior-year period, an increase of 55%. Consolidated cash, cash equivalents and restricted cash were approximately $471.0 million at September 30, 2026. Financial closing and review procedures are incomplete, and final results may differ.
WISeQey reaffirmed FY 2026 revenue growth guidance of approximately 50% to 100%, representing approximately $27 million to $36 million, compared with audited FY 2025 revenue of $19 million. Revenue growth was attributed primarily to subsidiary SEALSQ; IC’Alps contributed approximately $3.8 million in 9M 2026.
Under an October 9, 2026, definitive merger agreement, WISeQey and SEALSQ are expected to receive an aggregate 66,610,000 shares of Quantisimo’s new public holding company at closing, implying approximately $666.1 million in pro forma equity value at $10.00 per share. Closing is subject to conditions including at least $15 million in available cash, GigCapital8 shareholder and regulatory approvals, an effective Form F-4 registration statement and Nasdaq listing approval. The Group targets completion in the first quarter of 2027.
WISeQey Corp. reported that its subsidiary SEALSQ Corp. completed the technical evaluation phase of Common Criteria EAL5+ certification for the QS7001 V1 secure element. SERMA Safety & Security performed the physical and functional security tests, and every test received a PASS result; the certification process has entered its final phase.
Audits of sites involved in development, production and engineering assembly are scheduled for January 2027. After the audits, the evaluation report is expected to be submitted to France’s ANSSI for formal certificate issuance. SEALSQ said formal certification is targeted for 2027 and a V2 full post-quantum evaluation is expected in January 2027. As of September 30, 2026, 42 prospective customers and partners were evaluating QS7001 and QVault TPM.
WISeQey Corp. reported a binding letter of intent between its subsidiaries SEALSQ Corp. and WISeSat.Space AG: SEALSQ would acquire capacity associated with 12 satellites, plus access to mission control, ground segment and operational support. Consideration is estimated at approximately $15 million, with payment terms and delivery milestones to be agreed in a definitive agreement. WISeQey calls the deal a related-party transaction. SEALSQ and WISeSat are affiliates, and Carlos Moreira is CEO of all three companies; WISeQey says Moreira and WISeQey may have interests differing from or additional to those of SEALSQ’s and WISeSat’s other shareholders.
Closing is subject to execution of a definitive agreement and approval by the boards of SEALSQ and seller WISeSat.Space AG. The letter terminates upon a definitive agreement, mutual agreement, or December 31, 2026, if no agreement has been reached, unless extended in writing. The broader QSOC roadmap envisages up to 100 satellites through 2033, subject to financing, technical validation, regulatory approvals, launch availability and commercial agreements.
WISeQey Corp. issued a shareholder letter from Founder, Chairman and Chief Executive Officer Carlos Moreira describing priorities after its cross-border merger and redomiciliation. WISeQey began trading on Nasdaq and the SIX Swiss Exchange under WQEY on October 5, 2026; subsidiary WISeSat.Space completed its business combination with Columbus Acquisition Corp., and its ordinary shares began trading on Nasdaq under SAIQ on October 2, 2026.
WISeQey directly holds 23,387,061 WISeSat.Space shares, including Class F shares on an as-converted basis. Including 3,018,294 shares held by SEALSQ, WISeQey reports aggregate beneficial ownership of 26,405,355 shares, approximately 88.5% of the ordinary-share class under the stated beneficial-ownership methodology. SEALSQ completed a $10 million PIPE investment alongside the business combination to advance satellite infrastructure and support planned integration of post-quantum security across space, ground and user systems. The letter identifies commercialization, customer deployments, industrial partnerships and disciplined capital allocation as priorities.
WISeQey Corp. director David Alexander Fergusson received an award of 2,992 employee stock options on October 20, 2026. The options give rights to buy ordinary shares at an exercise price of $0.10 per share and expire October 4, 2033. The reported post-award position was 2,992 options.
WISeQey Corp. director Jean-Philippe Ladisa acquired 2,992 employee stock options under an Employee Stock Option Plan on October 19, 2026. Each option gives the right to buy one ordinary share at an exercise price of $0.10. The options are held directly; 2,992 options are reported following the grant, and they expire October 4, 2033.
WISeQey Corp. director Philippe Diego Monnier received an award of 2,992 employee stock options on October 19, 2026. The options give him the right to buy 2,992 ordinary shares at an exercise price of $0.10 per share and expire October 4, 2033; his reported direct option position after the award was 2,992.
WISeQey Corp. reported that its subsidiary SEALSQ Corp. announced preliminary unaudited revenue of $16.3 million for the nine months ended September 30, 2026, up 65% year over year. SEALSQ reaffirmed 2026 revenue guidance of approximately $27 million to $36 million, or approximately 50% to 100% growth, compared with audited 2025 revenue of $18 million.
Based on its preliminary nine-month revenue, SEALSQ expects fourth-quarter 2026 revenue of $11 million to $20 million, compared with $8.4 million in the fourth quarter of 2025. SEALSQ Founder, Chairman and CEO Carlos Moreira cited approximately $465 million in liquidity. 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.
WISeQey Corp. entered into a merger agreement for a two-step combination in which newly formed Quantisimo Holdings Corp. (PubCo) would become the public holding company for GigCapital8 and Quantisimo. WISeQey and its subsidiary SEALSQ, which collectively own Quantisimo, will contribute interests in Miraex SA, SEALCOIN AG, WeCan Group SA and WISeSat.Space Holdings Corp. Quantisimo shareholders are to receive 66,610,000 PubCo shares as merger consideration; PubCo would also issue additional ordinary shares for cash contributed by the company shareholders, at $10.00 per share.
Closing requires, among other conditions, shareholder and regulatory approvals, an effective Form F-4 registration statement, Nasdaq listing approval and at least $15 million in available cash. The transaction is expected to close in the first quarter of 2027; the agreement permits termination if it has not closed by March 31, 2027, subject to its terms. PubCo Class F shares would carry 49.999999% of total voting power. The contemplated lock-up ends at the earliest of six months after closing, a qualifying price trigger no earlier than 90 days after closing, or certain post-closing transactions.