---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-107198"
form_type: "8-K"
ticker: "COLA"
cik: "0002028201"
company_name: "Columbus Acquisition Corp/Cayman Islands"
filed_at: "2026-10-06T20:05:45+00:00"
generated_at: "2026-10-12T16:21:30.300033+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# WISeSat.Space closes SPAC merger with Columbus Acquisition; Nasdaq trading begins as SAIQ

## Summary
- CAC shareholders approved the business combination with WISeSat.Space Holdings Corp. on Sept 30, 2026; the deal closed Oct 1, 2026.
- 2,515,182 CAC ordinary shares were tendered for redemption and redeemed upon closing of the business combination.
- Pubco ordinary shares began trading on Nasdaq under 'SAIQ' on Oct 2, 2026; Nasdaq Opening Bell ceremony scheduled for Oct 9, 2026.
- Vote approved issuance of up to 33,385,052 Pubco ordinary shares for the Merger, Share Exchange and PIPE Investment; a 100-for-1 share consolidation was also approved.
- Seven Pubco directors elected effective at closing: Carlos Moreira, David Fergusson, Cristina Dolan, Peter Ward, Cameron R. Johnson, Gwenael Rouy-Poirier and Philippe D. Monnier.

## SEC filing metadata
- accession: 0001213900-26-107198
- form_type: 8-K
- ticker: COLA
- cik: 0002028201
- company_name: Columbus Acquisition Corp/Cayman Islands
- filed_at: 2026-10-06T20:05:45+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 5.07, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2028201/000121390026107198/0001213900-26-107198-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2028201/000121390026107198/ea0307185-8k_columbus.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-107198
- JSON: https://secwatch.observer/filing/0001213900-26-107198.json
- Plain text: https://secwatch.observer/filing/0001213900-26-107198.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.