Monitor SEC effectiveness of the F-4 and CAC shareholder vote timeline. The deal creates a path to Nasdaq listing for WISeSat, but no financial terms or valuation are disclosed yet. Watch for the proxy statement/prospectus for deal economics and dilution details.
Price Chart
Executive Summary
WISeKey subsidiary WISeSat filed an F-4 registration statement for its proposed business combination with SPAC Columbus Acquisition Corp (COLA). The deal would create a combined Nasdaq-listed company under the ticker SIOQ, focused on quantum-secure satellite infrastructure. This is a procedural milestone but the transaction remains subject to SEC effectiveness, shareholder approval, and Nasdaq listing.
Key Facts
- WISeSat filed a registration statement on Form F-4 with the SEC on May 29, 2026, for the proposed business combination with Columbus Acquisition Corp (COLA).
- Upon completion, the combined company is expected to trade on Nasdaq under the ticker SIOQ.
- The business combination agreement was signed on November 9, 2025.
- Closing conditions include SEC effectiveness, CAC shareholder approval, and Nasdaq listing approval.
- Maxim Group LLC is acting as exclusive financial advisor to WISeKey.
Financial Impact
No deal value disclosed in the press release.
Risk Factors
- SEC may not declare the F-4 effective.
- CAC shareholders may not approve the business combination.
- Nasdaq listing approval is not guaranteed.
- No deal value or valuation metrics disclosed — uncertainty on economics.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 press release from GlobeNewswire.
| Document | Accession Number |
|---|---|
| PRESS-RELEASE Data (Synthetic) | press-3316580 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 27, 2026 today | 6-K | — | awaiting T+60 | — | — |
Oct 22, 2026 5d ago | 6-K | — | awaiting T+60 | — | — |
Oct 16, 2026 11d ago | 6-K | $5.88 | awaiting T+60 | — | — |
Oct 14, 2026 13d ago | 6-K | $5.88 | awaiting T+60 | — | — |
Oct 9, 2026 18d ago | 3 | — | awaiting T+60 | — | — |
Oct 9, 2026 18d ago | 3 | — | awaiting T+60 | — | — |
Oct 9, 2026 18d ago | 3 | — | awaiting T+60 | — | — |
Oct 9, 2026 18d ago | 3 | — | awaiting T+60 | — | — |
Oct 9, 2026 18d ago | 3 | — | awaiting T+60 | — | — |
Oct 9, 2026 18d ago | 3 | — | awaiting T+60 | — | — |
US Market Status
Subscribe to SecBot
Get Real-Time SEC Filing Intelligence
Comprehensive SEC filing analysis delivered the moment filings hit EDGAR. Sentiment scoring, impact analysis, and actionable insights for every material event.
Create a free account Live analysis, Telegram alerts, watchlists and the MCP server for subscribers