Recent Updates — GIW

GigCapital8 Corp. entered into an Agreement and Plan of Merger dated October 8, 2026, to combine with Quantisimo Holdings Corp., a British Virgin Islands company formed by the sponsor GigAcquisitions8 Corp. The transaction involves two mergers: SPAC Merger Sub will merge with GigCapital8, which survives as a subsidiary of PubCo, followed by Target Merger Sub merging into Quantisimo. Upon closing, shareholders of Quantisimo (WISeQey and SealSQ) will receive 66,610,000 PubCo Shares plus additional shares based on cash contributions. The deal requires shareholder approval and regulatory clearance, with an outside date of March 31, 2027. GigCapital8 Corp. is a blank check company formed for the purpose of effecting a merger, capital stock issuance, acquisition, or other business combination.

GigCapital8 Corp. entered into a definitive Agreement and Plan of Merger with Quantisimo Holdings Corp., a special purpose vehicle established by WISeQey Corp. and SEALSQ Corp. The transaction will result in Quantisimo becoming a wholly owned subsidiary of the new publicly listed holding company, Quantisimo Holding Corp. (PubCo). Upon closing, shareholders of Quantisimo are expected to receive an aggregate of 66,610,000 PubCo shares, implying a pro forma equity value for Quantisimo of approximately $666.1 million at $10.00 per share. The business combination is expected to close in the first quarter of 2027, subject to shareholder approval and customary closing conditions. GigCapital8 Corp. operates as a special purpose acquisition company (SPAC) focused on merging with high-growth technology companies.

GigCapital8 Corp. entered into a non-binding letter of intent to combine with Quantisimo Corp., a special purpose vehicle established by WISeKey International Holding Ltd. and SEALSQ Corp. to focus on quantum technologies. The pre-money enterprise value of Quantisimo is approximately $575 million, and the transaction would result in Quantisimo's existing equityholders owning a majority of the combined public company. GigCapital8 Corp. is a blank check company focused on conducting business combinations with target companies in various industries.