WISeKey and WISeSat Submit Amended Registration Statement to SEC

On June 4, 2026, WISeKey International Holding Ltd. and its subsidiary WISeSat.Space Corp. announced the confidential submission of an amended draft registration statement on Form F-4 with the U.S. SEC, dated May 29, 2026. This submission is part of a proposed business combination with Columbus Acquisition Corp, a special purpose acquisition company. The transaction aims to list the combined entity on Nasdaq under the ticker symbol 'WSAT'. WISeSat is focused on developing secure satellite infrastructure for trusted communications and digital identity. The completion of this business combination is subject to SEC review and shareholder approval. Carlos Moreira, CEO of WISeSat, emphasized the importance of secure satellite infrastructure in achieving strategic autonomy in space. Maxim Group LLC is the exclusive financial advisor for this business combination.

Key Points: • WISeKey and WISeSat submitted an amended registration statement to the SEC. • The proposed business combination aims to list the new entity on Nasdaq as 'WSAT'. • WISeSat focuses on secure satellite infrastructure for trusted communications.