---
title: "WISeKey adds SealSQ as seller in WISeSat deal with Columbus Acquisition Corp"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/296266027.md"
description: "WISeKey International Holding AG has added SEALSQ as a selling shareholder to its planned business combination with Columbus Acquisition Corp (WISeSat.Space). SEALSQ signed a seller joinder on December 12, 2025, binding it to the November 9, 2025 agreement. The transaction involves the transfer of 435 ordinary shares and 435 Class F shares to WISeSat.Space Holdings at closing."
datetime: "2026-08-18T20:17:00.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/296266027.md)
  - [en](https://longbridge.com/en/news/296266027.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/296266027.md)
generator: "portal-rs"
---

# WISeKey adds SealSQ as seller in WISeSat deal with Columbus Acquisition Corp

-   WISeKey International Holding AG added SEALSQ as a selling shareholder in the planned WISeSat.Space combination with Columbus Acquisition. \* SEALSQ signed a seller joinder dated Dec. 12, 2025, becoming bound by the Nov. 9, 2025 business combination agreement. \* The joinder covers 435 Company ordinary shares and 435 Company Class F shares to be transferred to WISeSat.Space Holdings at closing. Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. WISeKey International Holding AG published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001213900-26-091235), on August 18, 2026, and is solely responsible for the information contained therein. © Copyright 2026 - Public Technologies (PUBT) Original Document: here

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---
> **Disclaimer: This article is for reference only and does not constitute any investment advice.**