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.
WISeKey International Holding furnished a shareholder letter from SEALSQ Corp describing a strong first half of 2026 and updated strategy. SEALSQ’s preliminary unaudited revenue for the first half of 2026 was approximately $11 million, up from $5 million a year earlier, about 120% year-over-year growth. Second-quarter 2026 preliminary revenue was approximately $7 million versus $4 million in the first quarter, indicating sequential acceleration. As of June 30 2026, cash and short-term investments were about $485 million, aided by a $125 million registered direct offering.
The company reports an active pipeline exceeding $225 million in opportunities through 2029, with over $60 million tied to its QS7001 and QVault TPM post-quantum products, and reaffirms 2026 revenue guidance of 50%–100% growth over audited 2025 revenue of $18.3 million. Management details certification milestones for QS7001 and QVault TPM through 2027 and highlights the SEALQuantum Sovereign Vertical Stack, targeting $200 million of capital deployment, with more than $60 million invested so far across several quantum and security assets. A non-binding letter of intent was also executed via Quantisimo Corp. with GigCapital8 Corp., subject to definitive agreements and approvals.
WISeKey International Holding plans to change its holding company jurisdiction from Switzerland to the British Virgin Islands through a merger of WISeKey CH into its wholly owned BVI subsidiary WISeKey International Corp. Shareholders will vote at an Extraordinary General Meeting on September 9, 2026 in Zurich on approval of the Merger Agreement. A related prospectus covers the issuance of up to 4,177,172 WISeKey BVI Ordinary Shares and up to 413,580 WISeKey BVI Class B Shares as merger consideration.
Each WISeKey CH Class B Share may be exchanged for either one BVI Ordinary Share or ten BVI Class B Shares, subject to a 49.999999% Class B voting cap. Each Class A Share may be exchanged for either one BVI Class F Share or one BVI Class B Share, also subject to this cap. Holders who do not make a timely election receive Ordinary Shares (for Class B) or Class F Shares (for Class A). ADS holders will receive BVI Ordinary Shares, unless they cancel ADSs and become direct shareholders before the election cutoff.
After completion, BVI Ordinary Shares are expected to trade on Nasdaq and SIX under “WQEY”, while Swiss-listed WISeKey CH Class B Shares and Nasdaq-listed ADSs will be delisted. The new multi-class structure gives Class B Shares ten votes but reduced economic rights, and allows Class F Shares to represent 49.999999% of total voting power, reinforcing founder and insider control. An opting-out provision from Swiss mandatory takeover rules will be continued, meaning no mandatory public offer is required even if an investor exceeds one-third of voting rights.
WISeKey International Holding AG communicates a decision of the Swiss Takeover Board, decision 947/01 dated 30 July 2026, concerning WISeKey International Holding AG and WISeKey International Corp. and the determination of the validity of an opting-out clause.
Under Swiss takeover rules, any shareholder of WISeKey International Holding SA holding at least 3% of the voting rights, whether exercisable or not, and who has not yet participated in the proceedings, may file an objection to the decision. Objections must be filed with the Takeover Board within five trading days after publication and must include a formal request, a summary of the legal grounds, and proof of the holding in accordance with article 56 paragraphs 3 and 4 of the Ordinance of the Takeover Board on Public Takeover Offers.
WISeKey International Holding Ltd announced that its wholly owned British Virgin Islands subsidiary, WISeKey International Corp. (WISeKey BVI), has filed a Form F-4 registration statement with the U.S. SEC to support a proposed redomiciliation of WISeKey from Switzerland to the British Virgin Islands via a merger. Under the proposal, WISeKey would merge into WISeKey BVI, which would remain as the publicly traded parent company and legal successor of the WISeKey group on Nasdaq and SIX Swiss Exchange.
The merger remains subject to several conditions, including WISeKey shareholder approval at an extraordinary general meeting currently expected on September 9, 2026, SEC effectiveness of the Form F-4, Nasdaq and SIX listing authorizations, and confirmation by the Swiss Takeover Board that WISeKey BVI benefits from the same opting-out from mandatory takeover provisions as WISeKey. Shareholders will receive access to detailed merger documentation and audited financial statements for 2025, 2024 and 2023, plus WISeKey BVI’s 2025 standalone financials, at least 30 days before the meeting. The registration statement is not yet effective and there is no assurance the merger will be completed on the anticipated timeline or at all.
WISeKey International Holding’s subsidiary SEALSQ Corp reported strong preliminary H1 2026 results and reaffirmed full-year guidance. Preliminary H1 2026 revenue is about $11 million, up roughly 120% from $5 million in H1 2025, with Q2 revenue of about $7 million versus $4 million in Q1. Growth was driven mainly by Vault-IC secure elements, consolidation of IC’ALPS SAS, expanding PKI subscriptions, and early Quantix Edge Security revenue.
SEALSQ reaffirmed FY 2026 revenue growth guidance of 50%–100% over audited FY 2025 revenue of $18.3 million, implying $27–$36 million. As of June 30, 2026, cash and short-term investments were about $495 million, supporting organic growth, the $200 million SEALQuantum Fund strategy, and multiple acquisitions and investments across post-quantum and quantum technologies.
WISeKey International Holding Ltd reports that shareholders approved all agenda items at the company’s 2026 Annual General Meeting held on June 29, 2026. All proposals submitted by the Board of Directors received support, reflecting broad backing for current strategy and leadership.
The company highlights progress across its cybersecurity, digital identity, IoT, space, NFT, and DePIN-focused subsidiaries, noting that more than 1.6 billion of its microchips are deployed in IoT sectors. Management reiterates its focus on executing strategy, pursuing new growth opportunities, and building long-term value.
WISeKey International Holding Ltd. has furnished a Form 6-K highlighting a strategic move in quantum technologies. WISeKey and its subsidiary SEALSQ Corp. have created a special purpose vehicle, Quantisimo Corp., which has signed a non-binding Letter of Intent with GigCapital8 Corp., a Nasdaq-listed SPAC, for a potential business combination. The combined company is expected to have a pre-money enterprise value of approximately $575 million, with a stated ambition to build a consolidated US$2 billion “Trusted Quantum Pure-Play” platform through additional acquisitions of up to five quantum companies. The transaction is currently expected to close in the first quarter of 2027, but remains subject to due diligence, definitive agreements, regulatory and shareholder approvals, financing, and other customary conditions, with no assurance that it will be completed.
WISeKey International Holding Ltd has signed a merger agreement to move its legal home from Switzerland to the British Virgin Islands through a merger with its wholly owned subsidiary, WISeKey International Corp. in the BVI. WISeKey would merge into WISeKey BVI, which would become the new listed parent company on both Nasdaq and SIX Swiss Exchange.
Each existing WISeKey share class will be exchanged for the corresponding WISeKey BVI share class, and the current ADS program will be terminated, with ADS holders receiving WISeKey BVI ordinary shares. Holders of WISeKey Class B shares will have election rights among different WISeKey BVI share classes, or receive ordinary shares if they do not elect. The transaction requires shareholder approval at an extraordinary general meeting expected in Q3 2026 and is subject to an effective Form F-4 registration statement, listing approvals, Swiss Takeover Board confirmation, and other Swiss and BVI legal and regulatory conditions.
WISeKey International Holding Ltd reports that WISeSat.Space Holdings Corp. (“Pubco”), a wholly owned subsidiary of WISeSat.Space Corp., has filed a registration statement on Form F-4 with the SEC for a previously announced business combination with Columbus Acquisition Corp. (“CAC”). The deal is governed by a Business Combination Agreement dated November 9, 2025. Completion of the transaction requires the Form F-4 to be declared effective, approval of CAC shareholders, and Nasdaq approval to list Pubco’s registered shares. If completed, both WISeSat and CAC will become subsidiaries of Pubco, and the combined company is expected to trade on Nasdaq under the ticker symbol “SAIQ”.
Wisekey International Holding S.A. insider activity reflects an amended report for Chief Innovation Officer Andreas Feuardent Moreira’s indirect holdings. His wife exercised 440 options under an Employee Stock Option Plan at an exercise price of $3.14 per option, disposing of the derivative securities and leaving no remaining options from this grant. This Form 4/A corrects an earlier filing that had mistakenly described the transaction as an acquisition of derivative securities rather than a disposition upon option exercise.