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.
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