WISeKey, SEALSQ-backed Quantisimo agrees to merge with SPAC GigCapital8, eyeing Nasdaq listing
GIW•Quantisimo signed a merger agreement with GigCapital8, targeting a Nasdaq listing in the first quarter of 2027. WISeKey and SEALSQ are set to receive 66.61 million shares, implying a pro forma equity value of about $666.1 million at $10 per share.
1. Merger terms
Quantisimo, formed by WISeKey and SEALSQ, agreed to merge with SPAC GigCapital8 to create Quantisimo Holding, which is expected to trade on Nasdaq under the symbol QSMO. Closing is targeted for the first quarter of 2027 and requires at least $15 million in cash from GigCapital8’s trust and any PIPE, with a matching contribution from SEALSQ. WISeKey and SEALSQ are expected to remain majority holders after completion.




