Wisekey International Holding S.A. SEC Filings

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.

Wisekey International Holding S.A. insider Andreas Feuardent Moreira reported routine equity compensation activity involving Class B Shares held indirectly through his wife. On June 8, 2026, an employee stock option for 440 Class B Shares was exercised at an effective price of about $3.14 per share.

In connection with this exercise, 139 Class B Shares were disposed of as a tax-withholding payment at an effective price of about $10.51 per share, reflecting a tax-offset structure rather than an open-market sale. Following these transactions, 301 Class B Shares are reported as indirectly owned through his wife, and the related option position is fully exercised.

WISeKey International Holding reported that its subsidiary SEALCOIN secured a $4 million strategic investment commitment to advance a space-based blockchain transaction layer for machines and satellites. The funding includes $1 million from The Hashgraph Group and $3 million from WISeKey.

The capital is intended to support development of the QAIT-powered SEALCOIN ecosystem, integrating WISeSat satellites, secure semiconductor technology and decentralized identity infrastructure. SEALCOIN recently completed its SPACEDROP campaign, where more than 45,000 participants interacted with 19 operational WISeSat satellites to validate satellite-to-blockchain communications.