secwatch.observer — SEC 8-K summary
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Issuer:     GigCapital8 Corp. (GIW)
CIK:        0002080019
Form:       8-K
Filed at:   2026-10-09T10:05:31+00:00
Accession:  0001193125-26-418405
Event type: m_and_a
Sentiment:  positive
Materiality: 0.85
Item codes: 8.01, 9.01
LLM model:  deepseek-v4.1-flash:cloud@v2

GigCapital8, Quantisimo sign definitive merger; WISeQey/SEALSQ quantum platform valued ~$666M, to list on Nasdaq as QSMO
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- Definitive merger signed Oct 8, 2026: WISeQey and SEALSQ to receive 66,610,000 PubCo shares, implying ~$666.1M pro forma equity value at $10.00/share and majority ownership of PubCo.
- Closing requires at least $15M cash: GigCapital8 trust proceeds after redemptions plus any PIPE, with matching cash from SEALSQ receiving additional PubCo shares at $10.00 each.
- Expected to close Q1 2027; PubCo Quantisimo Holding Corp. to list on Nasdaq Capital Market as 'QSMO'. GigCapital8 Class A shares exchange 1:1; five rights convert to one PubCo share.
- WISeQey, SEALSQ and GigCapital8's sponsor signed six-month lock-ups; sponsor to vote for the deal and not redeem. GigCapital8's board unanimously recommends the transaction.
- Quantisimo combines Miraex SA, SEALCOIN AG, WeCan Group SA and WISeSat.Space (Nasdaq: SAIQ); CEO Carlos Moreira cites 'Root to Qubit' sovereign quantum platform.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/2080019/000119312526418405/0001193125-26-418405-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/2080019/000119312526418405/giwwu-20261008.htm
  HTML page:      https://secwatch.observer/filing/0001193125-26-418405

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