Business Context and Reporting Period
This Form 6-K, filed on November 18, 2025, by WISeKey International Holding AG (WISeKey), discloses the entry into a Business Combination Agreement (BCA) dated November 9, 2025. The agreement outlines a proposed merger between WISeKey's subsidiary, WISeSat.Space Corp. (WISeSat BVI Sub), and Columbus Acquisition Corp (CAC), a special purpose acquisition company (SPAC). The transaction involves WISeKey exchanging its WISeSat BVI Sub shares for shares in the new public company (Pubco) and CAC merging into Pubco.
Key Financial Metrics and Transaction Terms
- Transaction Valuation: The Exchange Consideration for WISeSat BVI Sub is valued at $250,000,000 plus any Transaction Financing extended prior to closing.
- Share Pricing: Pubco Ordinary Shares are valued at $10.00 per share for the purpose of calculating the Exchange Consideration.
- Financing Covenants: Parties are required to seek financing agreements for at least $10 million in proceeds.
- Cost Caps: WISeSat BVI Sub may provide loans to CAC for transaction costs up to $900,000. Termination fees are capped at $700,000 for either party in specific breach scenarios.
- Extension Payments: CAC's deadline for consummation may be extended for six months, with extension payments shared 50/50 between the Sponsor and WISeSat BVI Sub.
Material Changes and Transaction Structure
The filing represents a material change in corporate structure rather than a reporting of operational financial results. Key structural elements include:
- Share Exchange: WISeKey will receive Pubco Ordinary Shares and Pubco Class F Shares. The Class F Shares will hold 49.9% of the total voting power and automatically convert to Ordinary Shares upon certain transfers.
- WISeKey Distribution: WISeKey retains the discretion to distribute up to 10% of the Exchange Shares to its own shareholders post-closing.
- Board Composition: The post-closing Pubco board will be classified with three classes, consisting of six members designated by WISeSat BVI Sub and one independent director designated by CAC.
- Lock-Up Period: WISeKey and other holders receiving shares via the WISeKey Distribution are subject to a lock-up period until the earlier of six months post-closing or the date the share price exceeds $12.50 for 20 trading days within a 30-day period.
Guidance, Risks, and Conditions
The filing contains no financial guidance or management commentary regarding future revenue or profit projections. It focuses on the conditions and risks associated with the proposed merger.
- Conditions to Closing: The transaction is subject to CAC shareholder approval, SEC effectiveness of the Registration Statement, Nasdaq listing approval, and the absence of laws prohibiting the transaction.
- Termination Rights: The BCA may be terminated if closing does not occur by July 22, 2026 (the Outside Date), or due to material breach, governmental prohibition, or failure to obtain shareholder approval.
- Key Risks: Risks include failure to complete the combination, excessive redemptions by CAC shareholders, failure to meet Nasdaq listing standards, inability to secure additional capital, and disruption to WISeSat BVI Sub's operations.
- Trust Account Waiver: WISeKey and related entities have waived any claim to CAC's trust account.
Investor Verification Checklist
- Verify the final terms of the Business Combination Agreement (Exhibit 2.1) for any amendments to the $250 million valuation or financing requirements.
- Monitor the filing of the Registration Statement (Form F-4) and Proxy Statement for detailed risk factors and pro forma financial information.
- Confirm the outcome of the CAC shareholder vote required to approve the transaction.
- Assess the status of the $10 million financing covenant and whether additional capital is required post-closing.
- Review the Lock-Up Agreement (Exhibit 10.3) to understand restrictions on the sale of shares received by WISeKey shareholders.