Quantisimo signs agreement to combine with GigCapital8 in Nasdaq listing plan

Quantisimo, the quantum-focused vehicle created by WISeQey and SEALSQ, signed a definitive combination agreement with GigCapital8 on October 9, 2026. The transaction assigns Quantisimo an approximate value of $666.1 million, calculated using $10.00 per share, and would give WISeQey and SEALSQ 66,610,000 shares in the new holding company. Completion is targeted for the first quarter of 2027, subject to shareholder approval and other closing conditions.

If completed, the transaction would move Quantisimo and GigCapital8 under a new holding company and provide a planned Nasdaq Capital Market listing under QSMO. WISeQey and SEALSQ would retain a majority stake, while the deal requires at least $15 million of cash and a matching contribution from SEALSQ.

  • 1Quantisimo is assigned an approximate value of $666.1 million using $10.00 per share.
  • 2WISeQey and SEALSQ are to receive an aggregate of 66,610,000 shares in the new holding company.
  • 3The transaction includes a minimum cash condition of $15 million, funded through GigCapital8 trust funds and any PIPE investment plus a matching SEALSQ contribution.
  • 4Closing is expected in the first quarter of 2027, subject to GigCapital8 shareholder approval and other customary conditions.
  • 5The proposed holding company is expected to list its ordinary shares on the Nasdaq Capital Market under QSMO.
  • 6The parties agreed to six-month lock-ups, and GigCapital8’s sponsor agreed to support the transaction and not redeem its shares.
  • The combination has not closed and remains dependent on shareholder approval and other customary conditions.
  • The final ownership split, cash raised through any PIPE investment, and timing of the Nasdaq listing are not specified.

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