WISeKey’s Subsidiary, SEALSQ Announces Entry into a Memorandum of Understanding Regarding a Potential Strategic Investment and Acquisition of Quantum Computing Firm Quobly

Rhea-AI Summary

WISeKey (NASDAQ: WKEY) said subsidiary SEALSQ (NASDAQ: LAES) entered a non-binding Memorandum of Understanding to begin exclusive talks to make an initial minority investment and potentially acquire a majority stake in French quantum microelectronics firm QUOBLY.

The multi-stage plan is anchored to SEALSQ’s Quantum Fund and, if completed, would total approximately $200M for a majority stake. The deal is subject to definitive agreements, financial, legal, technical and commercial due diligence, regulatory approvals and customary closing conditions.

Positive

• $200M proposed investment to secure a majority stake
• Transaction aligns with SEALSQ’s dedicated Quantum Fund
• CMOS-compatible silicon quantum processors could speed industrialization
• Plans target EU and US market expansion and secure-by-design platforms

Negative

• Memorandum is non-binding and negotiations are exclusive but not guaranteed
• Transaction requires due diligence and regulatory approvals before closing
• Structure begins with an initial minority investment before majority acquisition

News Market Reaction

-2.82%

14 alerts

-2.82% News Effect

+2.0% Peak Tracked

-4.0% Trough Tracked

-$3M Valuation Impact

$107M Market Cap

0.8x Rel. Volume

On the day this news was published, WKEY declined 2.82%, reflecting a moderate negative market reaction. Argus tracked a peak move of +2.0% during that session. Argus tracked a trough of -4.0% from its starting point during tracking. Our momentum scanner triggered 14 alerts that day, indicating notable trading interest and price volatility. This price movement removed approximately $3M from the company's valuation, bringing the market cap to $107M at that time.

Data tracked by StockTitan Argus on the day of publication.

Key Figures

Proposed investment: $200M MoU date: January 14, 2026 Collaboration announcement: November 21, 2025 +5 more

8 metrics

Proposed investment $200M Total SEALSQ investment for potential majority stake in QUOBLY if completed

MoU date January 14, 2026 Announcement date of non-binding Memorandum of Understanding

Collaboration announcement November 21, 2025 Prior strategic collaboration disclosure between SEALSQ and QUOBLY

Price change -7.61% WKEY move on the day of the QUOBLY strategic investment MOU news

52-week range $2.50 – $19.80 WKEY 52-week low and high before this announcement

Market cap $107,885,927 WKEY market capitalization prior to this news

Volume today 163,798 shares Trading volume vs 20-day average of 217,716 shares

200-day MA $6.92 WKEY trading above its 200-day moving average before this news

Market Reality Check

Price: $6.35 Vol: Volume 163,798 is below t...

normal vol

$6.35 Last Close

Volume Volume 163,798 is below the 20-day average of 217,716 (relative volume 0.75). normal

Technical Price $8.86 is trading above the 200-day MA of $6.92 while sitting 55.25% below the 52-week high.

Peers on Argus

WKEY declined 7.61% with mixed peer action: MOBX (-7.01%) and GCTS (-6.45%) fell...

WKEY declined 7.61% with mixed peer action: MOBX (-7.01%) and GCTS (-6.45%) fell, while ICG (+3.09%) and QUIK (+0.68%) rose and PXLW was nearly flat, supporting a stock-specific move.

Historical Context

5 past events · Latest: Jan 12 (Positive)

Pattern 5 events

Date	Event	Sentiment	Move	Catalyst
Jan 12	Satellite partnership	Positive	+7.9%	Partnership to build post‑quantum secure satellites and India launch hub.
Dec 29	SPAC combination step	Positive	-4.4%	Confidential Form F‑4 filing for WISeSat SPAC business combination.
Dec 22	CEO year-end letter	Positive	+19.5%	Update on 2025 milestones, Quantum Fund, cash position and 2026 plans.
Dec 01	Satellite launch	Positive	-11.0%	Successful SpaceX launch expanding secure IoT satellite constellation.
Nov 18	Redomiciliation plan	Positive	+7.2%	Plan to redomicile to BVI with Nasdaq primary and SIX secondary listing.

Pattern Detected

Recent strategic and space-related announcements often triggered sizable but mixed reactions, with several positive news items followed by both strong gains and notable selloffs.

Recent Company History

Over the last few months, WISeKey has reported multiple strategic milestones. A Dec 1, 2025 SpaceX launch expansion was followed by a -10.98% move, while the Dec 22, 2025 CEO letter highlighting a $100 million Quantum Fund and cash over $440 million saw a 19.47% gain. The WISeSat SPAC-related acquisition news on Dec 29, 2025 led to a -4.4% move, but the recent Jan 12, 2026 satellite partnership produced a 7.87% rise. This backdrop shows that structurally positive updates have elicited both rallies and pullbacks.

Market Pulse Summary

This announcement details a non-binding Memorandum of Understanding for SEALSQ to make a potential $...

Analysis

This announcement details a non-binding Memorandum of Understanding for SEALSQ to make a potential $200M multi-stage investment for a majority stake in QUOBLY, extending WISeKey’s quantum roadmap. Historically, the company has used acquisitions and SPAC structures to advance satellites and semiconductor capabilities. Investors may focus on progress from MOU to definitive agreements, due diligence outcomes, regulatory approvals, and how this transaction complements earlier quantum and satellite initiatives.

Key Terms

memorandum of understanding, post-quantum cryptography, quantum microelectronics, quantum processors, +2 more

6 terms

memorandum of understanding regulatory

"has entered into a non-binding Memorandum of Understanding leading to exclusive negotiations"

A memorandum of understanding (MOU) is a formal agreement between two or more parties that outlines their shared intentions and plans to work together. It acts like a handshake in writing, clarifying each side’s roles and expectations before any official contract is signed. For investors, an MOU signals that parties are serious about collaboration, which can influence future business opportunities and potential growth.

post-quantum cryptography technical

"a global leader in semiconductors security and Post-Quantum Cryptography (PQC) solutions"

Post-quantum cryptography is a set of new methods for scrambling data so it stays secure even if powerful quantum computers exist; think of replacing today’s locks with designs that a future high‑speed lockpicker cannot open. For investors, it matters because companies must upgrade systems, meet regulations, and protect customer and trade data—creating costs, competitive advantages, or legal and reputational risks depending on how quickly and effectively they adopt these new security standards.

quantum microelectronics technical

"Quobly is a pioneer in quantum microelectronics, developing silicon-based quantum processors"

Quantum microelectronics is the design and production of tiny electronic components that use quantum effects—such as particles existing in multiple states at once or passing through barriers—to process information, sense signals, or secure communications. For investors it matters because these components can enable large performance gains and new product categories, but they demand specialized factories, long development times and significant capital, making them a high‑risk, potentially high‑reward area similar to the early days of modern semiconductors.

quantum processors technical

"developing silicon-based quantum processors using proven semiconductor manufacturing processes"

Quantum processors are specialized computer chips that use the rules of quantum physics to process information with quantum bits (qubits), which can represent many possibilities at once rather than just 0 or 1. For investors, they matter because they promise drastically faster solutions for certain tasks—like searching databases, simulating materials, or optimizing complex systems—meaning companies that master or apply them could gain major technological and market advantages, but development is capital-intensive and risky.

root-of-trust technical

"combined with SEALSQ’s post-quantum Root-of-Trust capabilities, creates a unique platform"

A root-of-trust is the foundational security element—often a small dedicated chip or protected software module—that ensures a device or system only starts and runs with authentic, approved code and keys. For investors, it matters because a strong root-of-trust reduces the risk of hacks, data breaches, regulatory problems and product recalls, protecting a company's reputation and value much like a building’s solid foundation and locks protect everything inside.

cmos-compatible technical

"QUOBLY’s CMOS-compatible quantum technology, combined with SEALSQ’s post-quantum Root-of-Trust"

CMOS-compatible describes a device or design that can be made using the same widely used semiconductor manufacturing methods or that operates at the same voltage and logic standards as mainstream CMOS chips. For investors it signals easier and cheaper scaling, smoother integration into existing products and supply chains, and lower development risk — like a new part that fits straight onto an established factory assembly line or into a common power socket.

AI-generated analysis. Not financial advice.

WISeKey’s Subsidiary, SEALSQ Announces Entry into a Memorandum of Understanding Regarding a Potential Strategic Investment and Acquisition of Quantum Computing Firm Quobly

Quobly is a pioneer in quantum microelectronics, developing silicon-based quantum processors using proven semiconductor manufacturing processes

Geneva, Switzerland, January 14, 2026 – Ad hoc announcement pursuant to Art. 53 LR - WISeKey International Holding Ltd (“WISeKey”) (SIX: WIHN, NASDAQ: WKEY), a leading global cybersecurity, blockchain, and IoT company, today announces that its subsidiary, SEALSQ Corp (NASDAQ: LAES) ("SEALSQ" or "Company"), a global leader in semiconductors security and Post-Quantum Cryptography (PQC) solutions, has entered into a non-binding Memorandum of Understanding leading to exclusive negotiations with the shareholders of Quobly SAS, a leading French technology company pioneering the development of silicon-based quantum computers (“QUOBLY”), to make an initial minority investment and then potentially acquire a majority stake in QUOBLY. The proposed transaction remains subject to the negotiation and execution of definitive agreements, completion of financial, legal, technical and commercial due diligence, receipt of required corporate and regulatory approvals, and the satisfaction of other customary closing conditions.

These exclusive negotiations result from the execution of a non-binding Memorandum of Understanding that contemplates a multi-stage transaction.

This transaction is anchored within SEALSQ’s Quantum strategy and supported in part by its dedicated Quantum Fund designed to accelerate the emergence of sovereign, secure, and industrial-scale quantum technologies across Europe. If completed, the transaction would result in a total investment of approximately $200M by SEALSQ in return for a majority stake in QUOBLY.

The entering into exclusive negotiations with QUOBLY follows the ongoing strategic collaboration between SEALSQ and QUOBLY, announced on November 21, 2025. The collaboration as proposed to be expanded, plans to deliver accelerated benefits, including joint leadership in trustworthy and industrialized quantum computers and enhance EU and US market expansion.

SEALSQ and QUOBLY aim to establish a reference platform for secure-by-design quantum computing to define how quantum-resistant security can be embedded directly into future quantum infrastructures serving defense, intelligence, financial services, pharmaceuticals, and other mission-critical sectors.

Maud Vinet, Co-Founder and Chief Executive Officer of QUOBLY, commented: “This proposed transaction by SEALSQ marks an important step in QUOBLY’s industrial journey. Joining forces with a global leader in post-quantum security and semiconductor expert accelerates our ability to bring secure, scalable silicon-based quantum processors to market, and to expand internationally while consolidating our technological roadmap.”

Carlos Moreira, Founder and Chief Executive Officer of WISeKey, stated: “The proposed acquisition of QUOBLY is fully aligned with our Quantum roadmap. As quantum computing becomes a strategic infrastructure, security must be embedded at the hardware level from day one. QUOBLY’s CMOS-compatible quantum technology, combined with SEALSQ’s post-quantum Root-of-Trust capabilities, creates a unique platform to build sovereign, trusted, and industrialized quantum systems for Europe, and their strategic partners.”

About Quobly:
Quobly is a pioneer in quantum microelectronics, developing silicon-based quantum chips using proven semiconductor manufacturing processes. Founded in 2022 in Grenoble, France, the company builds on over 15 years of collaborative research between world-class institutions CEA-Leti and CNRS, combining expertise in quantum physics and microelectronics. Co-founded by Maud Vinet, Ph.D. in quantum physics, author of 300+ papers and 70+ patents, and Tristan Meunier, a leading expert in semiconductor quantum engineering trained under Nobel laureate Serge Haroche, Quobly bridges science and industry to make quantum computing scalable and manufacturable.

Quobly has a strategic partnership with STMicroelectronics to accelerate the industrialization of its silicon quantum chips. In 2023, Quobly raised €19 million, a record European seed round for a quantum hardware startup, followed in 2025 by €21 million to advance its Q100T program, a key step toward fault-tolerant quantum computing.

Quobly media contacts
marie.cabrieres@quobly.io

About WISeKey

WISeKey International Holding Ltd (“WISeKey”, SIX: WIHN; Nasdaq: WKEY) is a global leader in cybersecurity, digital identity, and IoT solutions platform. It operates as a Swiss-based holding company through several operational subsidiaries, each dedicated to specific aspects of its technology portfolio. The subsidiaries include (i) SEALSQ Corp (Nasdaq: LAES), which focuses on semiconductors, PKI, and post-quantum technology products, (ii) WISeKey SA which specializes in RoT and PKI solutions for secure authentication and identification in IoT, Blockchain, and AI, (iii) WISeSat AG which focuses on space technology for secure satellite communication, specifically for IoT applications, (iv) WISe.ART Corp which focuses on trusted blockchain NFTs and operates the WISe.ART marketplace for secure NFT transactions, and (v) SEALCOIN AG which focuses on decentralized physical internet with DePIN technology and house the development of the SEALCOIN platform.

Each subsidiary contributes to WISeKey’s mission of securing the internet while focusing on their respective areas of research and expertise. Their technologies seamlessly integrate into the comprehensive WISeKey platform. WISeKey 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, WISeKey plays a vital role in securing the Internet of Everything. The company’s semiconductors generate valuable Big Data that, when analyzed with AI, enable predictive equipment failure prevention. Trusted by the OISTE/WISeKey cryptographic Root of Trust, WISeKey provides secure authentication and identification for IoT, Blockchain, and AI applications. The WISeKey Root of Trust ensures the integrity of online transactions between objects and people. For more information on WISeKey’s strategic direction and its subsidiary companies, please visit www.wisekey.com.

Disclaimer
This communication expressly or implicitly contains certain forward-looking statements concerning WISeKey International Holding Ltd and its business. Such statements involve certain known and unknown risks, uncertainties and other factors, which could cause the actual results, financial condition, performance or achievements of WISeKey International Holding Ltd to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. WISeKey International Holding Ltd is providing this communication as of this date and does not undertake to update any forward-looking statements contained herein 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.

Press and Investor Contacts

WISeKey International Holding Ltd Company Contact: Carlos Moreira Chairman & CEO Tel: +41 22 594 3000 info@wisekey.com

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

FAQ

What did WISeKey (WKEY) announce about SEALSQ’s potential purchase of QUOBLY on January 14, 2026?

SEALSQ entered a non-binding MoU to exclusively negotiate an initial minority investment and potential majority acquisition of QUOBLY, subject to due diligence and approvals.

How much would SEALSQ invest in QUOBLY if the WKEY-related deal completes?

The proposed multi-stage transaction would total approximately $200M for a majority stake.

What conditions must be met before SEALSQ’s acquisition of QUOBLY closes?

The deal requires negotiation of definitive agreements, completion of financial, legal, technical and commercial due diligence, regulatory approvals, and other customary closing conditions.

How does QUOBLY’s technology fit SEALSQ’s quantum strategy mentioned by WKEY?

QUOBLY develops silicon-based, CMOS-compatible quantum processors, which SEALSQ says complements its post-quantum security and Root-of-Trust capabilities.

Will the WKEY/SEALSQ plan expand QUOBLY’s market reach?

SEALSQ and QUOBLY aim to enhance EU and US market expansion and create a reference secure-by-design quantum platform.