---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-126033"
form_type: "8-K"
ticker: "COLA"
cik: "0002028201"
company_name: "Columbus Acquisition Corp/Cayman Islands"
filed_at: "2025-12-29T23:59:59+00:00"
generated_at: "2026-05-16T12:10:27.287641+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# WISeKey and Columbus Acquisition Corp announce confidential F-4 filing for business combination

## Summary
- Confidential draft registration statement on Form F-4 submitted to SEC on Dec 23, 2025.
- Business combination values WISeSat at $250 million; Pubco shares valued at $10.00 per share.
- Columbus public shareholders can redeem; each Columbus share converts to one Pubco share.
- At least $10 million in financing expected; closing subject to Columbus shareholder approval.
- WISeSat has launched 22 satellites, 14 operational, with goal of 100 by 2030.

## SEC filing metadata
- accession: 0001213900-25-126033
- form_type: 8-K
- ticker: COLA
- cik: 0002028201
- company_name: Columbus Acquisition Corp/Cayman Islands
- filed_at: 2025-12-29T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2028201/000121390025126033/0001213900-25-126033-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2028201/000121390025126033/ea0271070-8k_columbus.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-126033
- JSON: https://secwatch.observer/filing/0001213900-25-126033.json
- Plain text: https://secwatch.observer/filing/0001213900-25-126033.txt

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