WISeKey and WISeSat File Registration Statement for SPAC Merger with Columbus Acquisition Corp

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Summary · why it matters

WISeKey International Holding and its subsidiary WISeSat.Space Corp. have filed a registration statement on Form F-4 with the U.S. Securities and Exchange Commission for their proposed business combination with special purpose acquisition company Columbus Acquisition Corp. The filing was made on May 29, 2026 by WISeSat.Space Holdings Corp., a wholly-owned subsidiary of WISeSat, and has not yet been declared effective by the SEC. Upon completion, WISeSat and Columbus Acquisition Corp will become subsidiaries of Pubco, and the combined company is expected to trade on Nasdaq under the ticker symbol SIOQ. Pubco plans a strategic transformation under the brand SPACEAIQ, focusing on space infrastructure, artificial intelligence, and quantum technologies, while the WISeSat brand will continue for its satellite business. The transaction remains subject to SEC review, Columbus Acquisition Corp shareholder approval, and other closing conditions.

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