WISeKey’s Redomiciliation from Switzerland to the British Virgin Islands Becomes Legally Effective

The completed merger replaces existing WISeKey securities with WISeQey securities under the applicable exchange ratios and holder elections.

Rhea-AI Summary

WISeQey (WKEY) completed WISeKey’s redomiciliation from Switzerland to the British Virgin Islands through a cross-border merger effective October 1, 2026. WISeKey merged into its wholly owned subsidiary WISeQey, the surviving company.

Existing WISeKey American Depositary Shares (ADSs) and Class B shares will trade on Nasdaq and SIX, respectively, through October 2. WISeQey ordinary shares are expected to begin trading as WQEY on the Nasdaq Global Market and SIX on October 5, with SIX as the primary listing. Each WISeKey ADS will be exchanged for one-half of one WISeQey ordinary share. Each WISeKey Class B share will be exchanged for one ordinary share, unless its holder elected to receive unlisted WISeQey Class B shares; that election provides ten WISeQey Class B shares for each WISeKey Class B share.

Positive

• Minor pointRedomiciliation completed October 1, 2026 through a cross-border merger, with WISeQey as the surviving company.

Negative

• None.

Key Figures

ADS exchange ratio: 1/2 WISeQey ordinary share per WISeKey ADS Class B exchange ratio: 1 WISeQey ordinary share per WISeKey Class B share Elected Class B exchange ratio: 10 WISeQey Class B shares per WISeKey Class B share +2 more

ADS exchange ratio

1/2 WISeQey ordinary share per WISeKey ADS

On completion of the redomiciliation

Class B exchange ratio

1 WISeQey ordinary share per WISeKey Class B share

Unless the holder elected WISeQey Class B shares

Elected Class B exchange ratio

10 WISeQey Class B shares per WISeKey Class B share

For holders electing unlisted WISeQey Class B shares

Existing securities' final trading date

October 2, 2026

Existing WISeKey ADSs and Class B shares continue trading through close of business

Expected new share trading start

October 5, 2026

WISeQey ordinary shares expected to begin trading on Nasdaq and SIX

Historical Context

1 past event · Latest: Sep 25

1 event

1. Sep 25

   Share election results

   24h Move

   +0.3%

   Reported 518 Class B share elections and the same one-for-one ordinary or ten-for-one Class B exchange options.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

redomiciliation, cross-border merger, american depositary shares, public key infrastructure

4 terms

redomiciliation regulatory

"redomiciliation of WISeKey International Holding Ltd (“WISeKey”) from Switzerland"

Redomiciliation is when a company legally changes its country of incorporation while keeping the same business and assets, like moving a house to a new neighborhood but keeping the same furniture. Investors care because the company then follows a different set of laws and tax rules, which can change shareholder rights, reporting standards, dividend treatment and the ease of trading the stock, potentially affecting risk and return.

cross-border merger regulatory

"implemented through a cross-border merger of WISeKey with and into WISeQey"

A cross-border merger is when two companies based in different countries combine into a single business. Think of it as two households from different neighborhoods merging their kitchens: it can create access to new customers, technologies or cost savings, but also brings extra rules, taxes, currency swings and cultural differences that can affect profits and risk. Investors watch these deals closely because they can change a company’s growth prospects, costs and regulatory exposure.

american depositary shares financial

"The existing American Depositary Shares of WISeKey will continue to trade on Nasdaq"

American depositary shares (ADSs) are a way for investors in the United States to buy shares of foreign companies without dealing with international markets directly. They represent ownership in a foreign company's stock and are traded on U.S. stock exchanges, making it easier for American investors to buy, sell, and own parts of companies from around the world.

public key infrastructure technical

"develops secure semiconductors, public key infrastructure (PKI)"

A public key infrastructure (PKI) is the system of digital keys, certificates and trusted procedures that proves who is on the other end of an electronic interaction and encrypts the data they exchange. Think of it as a verified digital mailroom and set of padlocks: one key is shared publicly to lock messages and a matching secret key unlocks them, which helps prevent fraud, supports secure transactions, regulatory compliance and preserves investor trust in a company’s digital operations.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Zug, Switzerland, October 1, 2026 – WISeQey Corp. (formerly known as WISeKey International Corp., “WISeQey” or the “Company”) (SIX: WIHN; NASDAQ: WKEY), a leading global quantum cybersecurity and space IoT company, today announced that the previously announced redomiciliation of WISeKey International Holding Ltd (“WISeKey”) from Switzerland to the British Virgin Islands became legally effective today (the “Redomiciliation”). The Redomiciliation was implemented through a cross-border merger of WISeKey with and into WISeQey, its wholly owned British Virgin Islands subsidiary, with WISeQey as the surviving company (the “Merger”).

The existing American Depositary Shares of WISeKey will continue to trade on Nasdaq, and the existing Class B shares of WISeKey will continue to trade on the SIX Swiss Exchange, in each case through the close of business on Friday, October 2, 2026. The ordinary shares of WISeQey are expected to commence trading under the ticker symbol “WQEY” on both the Nasdaq Global Market and the SIX Swiss Exchange (where they will have a primary listing) at market open on Monday, October 5, 2026.

Following cancellation of the existing WISeKey equity securities, holders of WISeKey equity securities will receive the applicable equity securities of WISeQey in accordance with the exchange ratios, elections, and settlement procedures previously communicated to shareholders and described in the prospectus relating to the Merger.

In connection with the completion of the Redomiciliation, (i) each WISeKey ADS will be exchanged for one-half of one WISeQey ordinary share, (ii) each WISeKey Class B share will be exchanged for one WISeQey ordinary share (unless such holder elected to receive WISeQey Class B shares), and (iii) each WISeKey Class B share held by a holder that elected to receive unlisted WISeQey Class B shares will be exchanged for ten WISeQey Class B shares.

About WISeQey

WISeQey Corp. (“WISeQey”), is a British Virgin Islands holding company focused on post quantum cybersecurity, digital identity, space technology and the Internet of Things (IoT). Its operating subsidiaries and technology platforms address distinct parts of this portfolio:

1. SEALSQ Corp (Nasdaq: LAES) develops secure semiconductors, public key infrastructure (PKI) and post-quantum security products.
2. WISeSat AG develops space technology and secure satellite communications, particularly for IoT applications.
3. WISeID provides digital identity, authentication, secure access and digital signing for individuals, enterprises and connected devices.
4. WISe.ART Corp operates the WISe.ART marketplace, which uses blockchain technology to support trusted digital asset and NFT transactions.
5. SEALCOIN AG develops decentralized physical infrastructure network (DePIN) technology and the SEALCOIN platform.
   
   

Each subsidiary contributes to WISeQey’s mission of securing the internet while focusing on their respective areas of research and expertise. Their technologies seamlessly integrate into the comprehensive WISeQey platform. WISeQey secures digital identity ecosystems for individuals and objects using blockchain, AI, and IoT technologies. With over 1.6 billion microchips deployed across various IoT sectors, WISeQey plays a vital role in securing the Internet of Everything. Trusted by the OISTE/WISeKey cryptographic Root of Trust, WISeQey provides secure authentication and identification for IoT, blockchain, and AI applications. The WISeQey Root of Trust ensures the integrity of online transactions between objects and people. For more information on WISeQey’s strategic direction and its subsidiary companies, please visit www.wisekey.com.

Forward-Looking Statements

This communication contains forward-looking statements concerning WISeKey International Holding Ltd, WISeQey Corp. and/or their respective subsidiaries (collectively, “WISeKey,” “WISeQey,” “our” or “us”) and their businesses. Forward-looking statements can be identified by terms such as “anticipate,” “believe,” “estimate,” “expect,” “intend,” “may,” “plan,” “project,” “will,” and similar expressions. These statements involve known and unknown risks, uncertainties and other factors that could cause WISeKey’s or WISeQey’s actual results, financial condition, performance or achievements to differ materially from any future results, performance or achievements expressed or implied by such forward-looking statements. These factors include: the expected timing of the commencement of trading of WISeQey ordinary shares on the Nasdaq Global Market and the SIX Swiss Exchange; the completion of the exchange of WISeKey equity securities for WISeQey equity securities; the ability of WISeQey to realize the anticipated benefits of the Redomiciliation; and the risks discussed in WISeKey’s and WISeQey’s filings with the SEC. WISeKey and WISeQey are providing this communication as of this date and do not undertake to update any forward-looking statements as a result of new information, future events or otherwise.

This press release does not constitute an offer to sell, or a solicitation of an offer to buy, any securities, and it does not constitute an offering prospectus within the meaning of the Swiss Financial Services Act (“FinSA”), the FinSA’s predecessor legislation or advertising within the meaning of the FinSA. Investors must rely on their own evaluation of WISeKey and its securities, including the merits and risks involved. Nothing contained herein is, or shall be relied on as, a promise or representation as to the future performance of WISeKey. Given the risks and uncertainties described herein, you should not place undue reliance on forward-looking statements as a prediction of actual results.

Press and Investor Contacts

WISeQey Corp. Company Contact: Carlos Moreira Chairman & CEO Tel: +41 22 594 3000 info@wisekey.com

WISeQey Investor Relations (US)  The Equity Group Inc. Lena Cati Tel: +1 212 836-9611 lena.cati@theequitygroup.com

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What securities will WISeKey shareholders receive after the WISeQey merger?

Each WISeKey ADS will be exchanged for one-half of one WISeQey ordinary share, and each WISeKey Class B share for one WISeQey ordinary share unless the holder elected the alternative. Holders who elected unlisted WISeQey Class B shares will receive ten of those shares for each WISeKey Class B share.

When will WISeQey shares begin trading under WQEY?

WISeQey ordinary shares are expected to begin trading on October 5, 2026, at market open under WQEY on the Nasdaq Global Market and SIX Swiss Exchange, with SIX as the primary listing. Existing WISeKey ADSs and Class B shares will continue trading on Nasdaq and SIX, respectively, through the close of business on October 2, 2026.