Quantisimo to Go Public on Nasdaq in $666 Million Quantum Tech Merger

Quantisimo Holding Corp. is set to become a publicly traded company on the Nasdaq through a merger with the special purpose acquisition company GigCapital8 Corp. (GIW). This business combination values the quantum technology platform at an estimated $666.1 million, based on a share price of $10. The venture is backed by WISeQey Corp. (WQEY) and its subsidiary SEALSQ Corp. (LAES), which initially created Quantisimo to focus on quantum-related cybersecurity, computing, and communications infrastructure.

The transaction serves to consolidate various quantum assets under one public umbrella. Ahead of the merger's completion, WISeQey and SEALSQ intend to transfer their stakes in WeCan Group SA, Miraex SA, SEALCOIN AG, and WISeSat.Space Holdings Corp. (SAIQ) into Quantisimo. In exchange for these contributions, the parent companies will receive a combined 66.61 million shares, allowing them to maintain a majority ownership stake in the newly public entity. To finalize the deal, the merger requires a minimum of $15 million in cash, which will be sourced from GigCapital8's trust, potential private placements, and an equal cash contribution from SEALSQ.

The business combination is expected to close in the first quarter of 2027, provided it secures shareholder approval and meets other standard closing requirements. Once public, the company plans to trade under the ticker symbol QSMO on the Nasdaq Capital Market. Its ongoing strategy will focus on developing secure quantum systems spanning digital identity and space infrastructure. Following the news, WISeQey shares rose 1.37% to $9.65, whereas SEALSQ shares fell 4.12% to $2.157.