WKEY

FY2025 revenue rose 62% to CHF 19.3 million, driven by SEALSQ (CHF 18.3 million, with Q4 at CHF 8 million) as WISeKey shifts from legacy security products toward post‑quantum semiconductor platforms and sampling-related sales. The commercial pipeline exceeds $200 million with more than $60 million tied to the QS7001 and QVault TPM programs; QS7001 has passed EAL5+ fault‑injection/side‑channel tests and NIST validation, and first production revenues are targeted in late 2026. Liquidity and funding strengthened materially — CHF 429 million in cash and short‑term investments at end‑2025, rising to over CHF 535 million by April 30, 2026 after a CHF 125 million raise, and the SEALSQ Quantum Fund expanded to CHF 200 million to support R&D, manufacturing scale and M&A. Interested in WISeKey International Holding Ltd. Sponsored ADR? Here are five stocks we like better. WISeKey International (NASDAQ:WKEY) reported audited full-year 2025 revenue of CHF 19.3 million, up 62% from CHF 11.9 million in 2024, as the company highlighted progress in shifting from legacy security products toward post-quantum semiconductor platforms and a more integrated “convergence” strategy across its business lines. Founder and CEO Carlos Moreira said 2025 was “a defining year” for the company, citing both revenue momentum and a balance sheet that he described as “fundamentally transformed.” He said subsidiary SEALSQ contributed CHF 18.3 million of 2025 revenue, representing 66% growth year-over-year, with fourth-quarter revenue of CHF 8 million. → Roblox Stock Slides to New Low as Safety Changes Weigh on Outlook Chief Financial Officer John O’Hara said Q4 revenue doubled to CHF 8 million from CHF 4 million in the fourth quarter of 2024. O’Hara added that approximately CHF 3.5 million of the full-year increase was attributable to five months of revenue from IC’Alps, which SEALSQ acquired on Aug. 4, 2025 and consolidated from that date. Management attributed organic growth to a recovery in core secure microcontroller and public key infrastructure (PKI) product families, along with “initial sampling revenue” from post-quantum platforms. → The Real SpaceX Play: 5 Chip Stocks Powering the IPO Before It Launches Moreira emphasized that the company’s transition from sampling to commercial revenue is underway and said SEALSQ’s 2025 growth reflected renewed demand in its “legacy semiconductor and PKI product line” as customers worked through inventory, as well as the first sampling-related revenue from post-quantum products. He said SEALSQ’s commercial pipeline exceeds $200 million covering potential opportunities from 2026 through 2029, with more than $60 million tied directly to the QS7001 and QVault TPM programs, which he said grew more than five-fold year-over-year from roughly $11 million. → 3 Emerging Markets ETFs to Maximize Exposure to High-Potential Countries On certification, Moreira said QS7001 has passed fault injection and side-channel attack resistance evaluation at the EAL5+ level, and that the company has completed NIST validation. He and O’Hara both pointed to late 2026 as the target period for first production revenues tied to QS7001, framing certification as a “gating event” that helps convert pipeline into recurring hardware revenue. O’Hara said the company posted a 2025 net loss of CHF 38.2 million. He attributed the loss largely to CHF 8.3 million of non-cash share-based compensation, consolidation following the IC’Alps acquisition, increased R&D investment to accelerate post-quantum semiconductor products, and expanded sales and marketing expenses intended to support an expected commercial ramp. He said those items were partially offset by a one-off credit tied to settlement of the ExWorks loan and interest income on cash deposits. On liquidity, O’Hara said WISeKey ended 2025 with CHF 429 million in cash and short-term investments, up from CHF 91 million at the end of 2024. He noted this increase occurred while the company deployed about CHF 23 million toward strategic investments during the year. He added that in March 2026, SEALSQ raised an additional CHF 125 million. As of April 30, 2026, O’Hara said the WISeKey group held more than CHF 535 million in cash and short-term investments, positioning it to fund post-quantum R&D, scale manufacturing capacity, pursue selective M&A, and continue deploying capital through the SEALSQ Quantum Fund. Moreira said the SEALSQ Quantum Fund expanded from CHF 20 million at launch in 2025 to CHF 200 million of available capital resources as of April 30, 2026, with approximately CHF 23.2 million deployed across five portfolio positions. He described the investments as supporting vertical integration rather than “adjacent bets.” IC’Alps: CHF 14 million, adding more than 100 ASIC engineers in Grenoble and supporting development of a quantum-resistant secure element optimized for CRYSTALS-Kyber. Quantix Edge Security (Murcia, Spain): CHF 4.2 million toward a post-quantum semiconductor personalization center, which Moreira said is co-funded with Spain’s SETT.es, including a CHF 20 million contribution from the Spanish government. WeCan Group: CHF 4 million to integrate post-quantum secure digital identity into financial KYC. EeroQ/Anchor (Chicago): two rounds of investment described as aligned with SEALSQ’s CMOS-compatible semiconductor focus. ColibriTD: an initial investment tied to improving sub-7nm wafer yields, which Moreira said could reduce chip manufacturing costs. Moreira also said the company plans to demonstrate a joint quantum security stack at a Geneva Quantum Center of Excellency that is in preparation and targeted for inauguration in October. Moreira said WISeKey’s “year of convergence” involves integrating five pillars—SEALSQ, WiseSat, SEALCOIN, WISeID/INES, and WISe.ART—into a single vertically integrated “quantum secure platform.” On WiseSat, he said the company has launched 21 satellites to date, with 14 operational in low Earth orbit, and remains on track toward a 100-satellite constellation. Moreira said a definitive business combination agreement signed in November with Columbus Acquisition Corporation is expected to close in the second half of 2026, “very likely” around September, resulting in WISeSat.Space Holdings being listed on Nasdaq. He said WISeKey and SEALSQ would receive 25 million shares at $10 per share, representing $250 million of equity value, while retaining majority ownership. During Q&A, Moreira described WiseSat’s early constellation as supporting track-and-trace and connectivity use cases in areas where terrestrial coverage is limited, including logistics and military-related applications. He also discussed embedding a crypto wallet into satellites tied to SEALCOIN, which he said is 80% owned by WISeKey in cooperation with Hedera. On regulation, Moreira pointed to the U.S. government’s CNSA 2.0 mandate, which he said requires CNSA 2.0 compliance for new national security system acquisitions by Jan. 1, 2027, and said federal agencies must identify and remediate quantum-vulnerable systems. He said the company is seeing this translate into pipeline activity in areas including defense and smart meters. O’Hara said the company is reaffirming its full-year 2026 revenue guidance of 50% to 100% growth year-over-year, driven primarily by SEALSQ. He cited drivers including full-year consolidation of IC’Alps, entry into the trusted platform module market via QVault TPM, QASIC custom post-quantum ASIC engagements, QS7001 production revenues following EAL5+ certification late in 2026, initial revenues from the Quantix Edge Security personalization center development, and continued expansion of recurring PKI subscription revenue. WISeKey International SA is a Swiss-based cybersecurity and digital identity company specializing in secure authentication and encryption solutions. The firm develops and deploys public key infrastructure (PKI) technologies, digital certificates and secure semiconductors to safeguard online transactions, data and communications. Its offerings encompass hardware security modules, digital vault services and cybersecurity software designed to protect devices, applications and networks against digital threats. Founded in 1999 by Carlos Moreira, WISeKey has evolved into a provider of Internet of Things (IoT) security, embedding cryptographic capabilities directly into chips for smart cards, mobile devices and industrial sensors. The article "WISeKey International H2 Earnings Call Highlights" was originally published by MarketBeat.

WISeKey Reports Audited Full Year 2025 Financial Results Schedules Conference Call for Monday, May 4 at 9:00am EDT Audited FY 2025 revenue of $19.3 million, representing 62% growth year-over-year Subsidiary SEALSQ reported 66% year-over-year revenue growth Reaffirms FY 2026 guidance with revenue expected to grow between 50%-100% year-over-year; Q1 2026 unaudited revenue of $4.2 million Strong cash and short-term investments of over $535 million as of April 30, 2026, well positions the WISeKey Group to execute growth strategy Commercial pipeline exceeding $200 million for 2026–2029 for SEALSQ alone, including over $60 million linked to QS7001 and QVault TPM programs Geneva, Switzerland - April 30, 2026 - Ad hoc announcement pursuant to Art. 53 LR - WISeKey International Holding Ltd (“WISeKey” or “WISeKey Group”) (SIX: WIHN, NASDAQ: WKEY), a leading global cybersecurity, blockchain, and IoT company, today reported its audited financial results for the fourth quarter (“Q4 2025”) and full year (“FY 2025”) ended December 31, 2025. These results include audited figures from its subsidiary SEALSQ Corp (“SEALSQ”) (NASDAQ: LAES), which focuses on semiconductors, PKI, and post-quantum technology hardware and software products. WISeKey holds 52% of the voting rights in SEALSQ, enabling full consolidation of SEALSQ’s revenue, cash, pipeline, and balance sheet into the WISeKey financial statements. FY 2025 Key Financial Highlights *Excludes SEALSQ’s investment in WISeSat ** Pipeline reflects potential revenue opportunities with current and prospective customers from 2026 through 2029 and only includes SEALSQ. Pipeline figures are unaudited forward-looking estimates and are not guarantees of future revenue and reflects management estimates and are subject to conversion risks, customer validation and technical integration. FY 2025 Key Financial and Operational Highlights FY 2025 revenue reached $19.3 million, representing a 62% increase year-over-year, of which $8 million was generated in Q4 2025, as compared to $4 million in Q4 2024. SEALSQ, a subsidiary, generated revenue of $18.3 million for FY 2025. Revenue growth was driven by renewed demand across core semiconductor and PKI product lines and five months of revenue contribution from IC'ALPS SAS (“IC’ALPS”) following its acquisition by SEALSQ on August 4, 2025 (approximately $3.5 million). The 2025 numbers reflected the transitional period between the traditional product offerings and next-generation post-quantum semiconductor platforms, and included initial revenue from sampling the post-quantum technology products, with the transition expected to enter its commercialization phase with the first production revenues anticipated in the latter part of 2026. FY 2025 net loss of $38.2 million. This has increased by 20% against the net loss in FY 2024 and includes a non-cash share-based compensation charge of $8.3 million, in addition to increased operating expenses due to the consolidation of IC’ALPS since August 2025, an increase in our research & development, and sales & marketing efforts designed to accelerate growth with the launch of the new post-quantum semiconductor product range. This is partially offset by a one-off credit upon settlement of the ExWorks loan and interest received on WISeKey’s cash deposits. Ended the year with a strong balance sheet. As of December 31, 2025, WISeKey had $429 million in cash and short-term investments, providing one of the strongest liquidity positions in its sector, even after deploying $23 million during the past year toward strategic investments in companies such as WeCan Group (“WeCan”), IC’ALPS, and Quantix Edge Security. WISeKey via SEALSQ raised approximately $125 million in March 2026. As of April 30, 2026, WISeKey had over $535 million in cash and short-term investments. This capital base enables the WISeKey Group to deploy its resources strategically in accelerated post-quantum R&D, manufacturing scale-up, strategic acquisitions and ecosystem investments and vertical integration in ASIC design and quantum infrastructure. Active business pipeline estimated to total over $200 million as of March 31, 2026, reflecting potential revenue opportunities with both current and potential new customers from 2026 through 2029, including $60 million linked to QS7001 and QVault TPM programs. This pipeline highlights rising global demand for quantum-resistant security and sovereign semiconductor design and the continued evolution of our business development activities. These figures reflect management estimates and are subject to conversion risks, customer validation and technical integration. Carlos Moreira, Founder & CEO of WISeKey, noted, “The 62% revenue growth achieved in 2025, and the strong start to 2026, clearly demonstrate the transition of our semiconductor and post-quantum strategy from investment to commercial acceleration. With strong liquidity, a rapidly expanding pipeline, and rising global demand for sovereign, quantum-resistant infrastructure, WISeKey is uniquely positioned to lead the next generation of secure digital ecosystems.” SEALSQ Corp — Subsidiary Performance SEALSQ delivered revenue growth of 66% year-over-year for FY 2025, driven by robust demand for its secure microcontroller and PKI product families and initial commercial contributions from its post-quantum semiconductor programs. SEALSQ reinforces WISeKey’s long-term strategy to build a vertically integrated quantum-secure platform across two foundational layers: Foundational Layer — Post-Quantum Silicon: Advanced cryptographic IP, secure elements, TPM architectures, and quantum-resistant chiplets including QS7001, QVault™ TPM, and QASIC™. Computational Layer — Quantum Ecosystems: Strategic participation in companies developing quantum processors (EeroQ) and quantum-classical interface technologies (ColibriTD), extending trust from silicon identity to secure quantum access. SEALSQ Quantum Strategic Investments and Vertical Integration During 2025, SEALSQ deployed over $20 million into strategic investments aimed at strengthening its Quantum technology expertise and its vertical integration. The total approved allocation of capital resources started at $20 million in February 2025 and was increased in multiple steps to $200 million as of April 30, 2026. Each investment is structured as an active R&D and technology co-development partnership. FY 2026 Outlook & Commercial Momentum WISeKey’s outlook statements are based on current expectations. The following statements are forward-looking and actual results could differ materially depending on market conditions and the factors set forth under “Forward Looking Statements” below. SEALSQ has now entered its commercial acceleration phase. Its pipeline of over $200 million (as at March 31, 2026) in potential revenue opportunities from 2026 through 2029, includes more than $60 million linked to QS7001 and QVault TPM programs, reflecting rising global demand for quantum-resistant security and sovereign semiconductor design solutions. WISeKey’s recognized revenue of $4.2 million in Q1 2026, representing over 200% growth versus Q1 2025. WISeKey also confirms that it expects FY 2026 revenue growth of +50% to +100% year-over-year, mainly driven by the anticipated growth in SEALSQ. Key Revenue Drivers for 2026 QS7001 & QVault™ TPM: Commercial rollout of post-quantum secure chips; initial revenues expected late 2026 following EAL 5+ certification. IC’ALPS Full Consolidation: Full-year contribution from the ASIC design subsidiary acquired August 2025. TPM Market Expansion: Anticipated entry into the Trusted Platform Module market leveraging QVault™ TPM. QASIC™ Programs: Launch of custom post-quantum ASIC development engagements. Regulatory Tailwinds: U.S. NSA CNSA 2.0 mandates (requiring CNSA 2.0 compliance for new National Security System acquisitions by January 1, 2027) and NIST PQC Standards (finalized August 2024) driving enterprise and government adoption. Recurring Revenue Growth: Continued expansion of PKI subscription services and OSPT personalization revenues. Quantix Edge Security: Initial revenues from the sovereign semiconductor personalization center in Spain. WISeSat.Space: Definitive Business Combination Agreement Targeting a Listing on the Nasdaq On November 10, 2025, WISeKey and Columbus Acquisition Corp. (NASDAQ: COLA), a Cayman Islands special purpose acquisition company, announced the execution of a Definitive Business Combination Agreement. The transaction is expected to result in the public listing of WISeKey’s satellite subsidiary on the Nasdaq Stock Exchange under the name WISeSat.Space Holdings Corp. Transaction Structure: WISeKey and SEALSQ together will receive 25.0 million shares in the newly combined entity at $10 per share, representing $250 million in equity of WISeSat.Space Holdings Corp., while retaining majority ownership. Expected Closing: The transaction is anticipated to close in the second half of 2026, enabling WISeSat.Space AG (“WISeSat”) to operate as an independently listed Nasdaq company. Constellation Scale: WISeSat and its partners have launched 21 satellites to orbit, with 14 currently operational in Low Earth Orbit; the program targets an up to 100-satellite constellation. Quantum-Secure Infrastructure: WISeSat satellites are equipped with SEALSQ’s post-quantum cryptographic chips, WISeKey’s Root of Trust, WISeID identity management, and Hedera distributed ledger technology, enabling quantum-resilient IoT connectivity for logistics, agriculture, energy, and defense. Furthermore, as previously announced, the anticipated completion of WISeSat’s Business Combination Agreement and subsequent listing on the Nasdaq is expected to support SEALSQ’s Quantum Spatial Orbital Cloud (“QSOC”) initiative, under which WISeSat would operate as the space infrastructure platform. The QSOC initiative plans to deploy up to a 100-satellite constellation delivering quantum key distribution (QKD), quantum random number generation (QRNG), and post-quantum identity services as a subscription offering to enterprises and governments worldwide, with satellites deploying incrementally from 2026 through Full Operational Capability (“FOC”) in 2033. WISeSat: Constellation Owner & Operator: Designs, manufactures, launches, and operates the space segment including satellites, ground stations, and frequency licenses. SEALSQ: Quantum Cloud Owner & Operator: Deploys its proprietary quantum technology stack and operates QSOC as a managed cloud platform. Customers contract directly with SEALSQ. Full Operational Capability: FOC is targeted for 2033. At FOC, WISeSat is expected to operate a constellation providing dedicated QSOC capacity for SEALSQ, and SEALSQ is aiming to deliver a contractually guaranteed 99.9% uptime service-level agreement to its customers. Mr. Moreira added, “The quantum threat to today’s encrypted infrastructure is mathematically certain and approaching rapidly. The QSOC is not a science project, it is the commercial orbital layer that will protect the financial system, critical infrastructure, and national security communications from the quantum computing era.” 2026 WISeKey Group Key Operational Milestones QS7001 Certification: Fault injection and side-channel attack resistance confirmed passed (EAL 5+). NIST FIPS SP 800-90B entropy source validation completed. First production revenues on track for late 2026. Satellite Launch: WISeSat successfully launched its 21st satellite to Low Earth Orbit via SpaceX. Swiss Armed Forces Pilot Completion: Completion of the pilot between WISeSat and the Swiss Armed Forces’ Space Command covering satellite missions, payload integration, and secure communications testing. SEALCOIN Spacedrop: SEALCOIN AG launched ‘Spacedrop’, an early-access onboarding initiative backed by The Hashgraph Association / Hedera network. HQ Relocation: SEALSQ and WISeKey will move to Pont-Rouge, Lancy in the second half of 2026, establishing the Geneva Quantum Center of Excellence. 2026 Key Partnerships Lattice Semiconductor: Unified TPM-FPGA architecture combining QS7001 and QVault TPM with Lattice FPGA solutions. Live proof-of-concept at Embedded World 2026. WeCan / WISeID Integration: WeCan integrated WISeID digital identity into compliance solutions, advancing PQC-secured blockchain KYC capabilities. PQC Ecosystem Deployment: Deployment of CRYSTALS-Kyber and CRYSTALS-Dilithium across hardware, blockchain, and satellite IoT in collaboration with WeCan, WISeSat, and WISeID. Wi-SUN Alliance: SEALSQ announced support for Wi-SUN Alliance members with QS7001 chips and INeS PKI for quantum-resilient smart meter ecosystems at the Wi-SUN Open House 2026, in Tokyo. Trusted Semiconductor Solutions Alliance: New U.S. go-to-market alliance with a Category 1A Trusted-accredited company serving U.S. defense and government agencies. The Hashgraph Association / Hedera: Strategic funding and technical support underpinning SEALCOIN’s Hedera-based M2M transaction ecosystem. WISeKey Ecosystem — Year of Convergence 2026 marks WISeKey’s “Year of Convergence” — five foundational technology pillars integrated into unified, interoperable platforms: SEALSQ: develops post-quantum secure chips (QS7001™, QVault™ TPM), designed to generate ASIC design services revenue, hardware revenue, and recurring income through Outsourced Semiconductor Personalization and Test (OSPT) centers. WISeSat: 21 satellites launched to date; a planned SPAC merger with Columbus Acquisition Corp. targeting Nasdaq listing as WISeSat.Space Holdings Corp. in the second half of 2026. SEALCOIN: Chip-level machine-to-machine transactions secured by post-quantum cryptography and verifiable trusted identity on the Hedera network. WISeID and INeS: Global PKI infrastructure supporting Matter Protocol, GSMA eUICC, enterprise authentication, and sovereign digital identity frameworks. WISe.Art: Secure tokenization and digital asset authentication combining blockchain with hardware Root of Trust technologies. Regulatory & Standards Environment U.S. NSA CNSA 2.0: All new acquisitions for National Security Systems must be CNSA 2.0 compliant by January 1, 2027. OMB Memorandum M-23-02: U.S. federal agencies required to identify and remediate quantum-vulnerable systems. NIST PQC Standards (2024): FIPS 203 (ML-KEM/Kyber), FIPS 204 (ML-DSA/Dilithium), and FIPS 205 (SLH-DSA) finalized. SEALSQ products are designed to comply with these standards. Filing of 2025 Annual Report on Form 20-F WISeKey filed its Condensed Consolidated Financial Statements in the Form 20-F for the full year period ended December 31, 2025, with the U.S. Securities and Exchange Commission on April 30, 2026. The Form 20-F can be accessed by visiting the Company’s website at www.wisekey.com. In addition, the Company's stockholders may receive a hard copy of the Form 20-F, which includes complete audited financial statements, free of charge by contacting its Investor Relations Representative at [email protected] or +1 212 836-9611. Conference Call The Company will host a conference call to review its results on Monday, May 4, 2026, at 9:00 am EDT (3:00 pm CEST). To join, please use the following dial-in numbers: Toll-Free Dial-In Number: 877-445-9755 International Dial-In Number: 201-493-6744 The webcast of the call can be accessed through the Investor Relations section of WISeKey’s website at www.wisekey.com. An archived version of the call will also be made available. ADDITIONAL FINANCIAL & OPERATIONAL DATA Consolidated Statements of Comprehensive Income/(Loss) [as reported] The notes are an integral part of our consolidated financial statements. Consolidated Balance Sheets [as reported] The notes are an integral part of our consolidated financial statements. 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 houses 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. 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. Forward-Looking Statements This communication contains forward-looking statements concerning WISeKey International Holding Ltd and its business. 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 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: our ability to convert our pipeline into actual sales; the ability to realize WISeKey’s anticipated growth strategies and profitability; the development of post-quantum cryptography products and the potential market for such products; WISeKey’s plans for global customer base expansion; the expansion of the WISeSat project and the QSOC initiative; the timing and expected revenues from the commercial deployment of the QS7001 quantum-resistant semiconductor; the proposed business combination between WISeSat and Columbus Acquisition Corp.; the sufficiency of cash to meet liquidity needs; WISeKey’s ability to attract and retain customers; changes in economic conditions; market demand and semiconductor industry conditions; and the risks discussed in WISeKey’s filings with the SEC. WISeKey is providing this communication as of this date and does not undertake to update any forward-looking statements as a result of new information, future events or otherwise. Statements regarding our business pipeline are based on management's current estimates of potential revenue opportunities and do not represent backlog or contracted revenue. Pipeline conversion is subject to numerous factors including customer validation, technical integration requirements, certification timelines, and market conditions. There can be no assurance that pipeline opportunities will convert to actual sales or that such conversion will occur within anticipated timeframes. 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

WISeKey Reports FY 2025 Preliminary Financial Results Subsidiary SEALSQ Delivers 66% Year-Over-Year Revenue Growth and Advances Global Quantum-Secure Semiconductor Ecosystem Geneva, Switzerland, March 5, 2026 – Ad hoc announcement pursuant to Art. 53 LR - WISeKey International Holding Ltd (“WISeKey” or “WISeKey Group”) (SIX: WIHN, NASDAQ: WKEY), a leading global cybersecurity, blockchain, and IoT company, today reported key operational and financial metrics for the fourth quarter (“Q4”) and full year (“FY”) ended December 31, 2025. These figures include preliminary results from its subsidiary, SEALSQ Corp (NASDAQ: LAES) ("SEALSQ"), a company that focuses on developing and selling Semiconductors, PKI, and Post-Quantum technology hardware and software products. WISeKey holds 52% of the voting rights in SEALSQ, enabling full consolidation of SEALSQ’s revenue, cash, pipeline, and balance sheet into WISeKey Group financial statements. All figures are preliminary and unaudited. WISeKey expects to publish its audited full-year financial statements on or before April 30, 2026. Key Financial Highlights * Reflects potential revenue opportunities with both current and potential new customers from 2026 through 2028, including more than $60 million linked to QS7001 and QVault TPM programs. FY 2025 revenue growth was driven by increased demand across core secure semiconductor and PKI product lines, five months of IC'ALPS contribution, and early commercial traction in post-quantum semiconductor programs. FY 2025 marked the final phase of transition from legacy platforms toward next-generation post-quantum semiconductor architectures, now entering a phase of commercial acceleration. Carlos Moreira, Founder & CEO, WISeKey and SEALSQ, noted, “The 58% revenue growth for WISeKey achieved in 2025 and the strong start into 2026 clearly demonstrate the transition of our semiconductor and post-quantum strategy from investment to commercial acceleration. With exceptional liquidity, a rapidly expanding pipeline, and rising global demand for sovereign, quantum-resistant infrastructure, WISeKey and SEALSQ are uniquely positioned to lead the next generation of secure digital ecosystems.” FY 2026 Outlook & Commercial Momentum WISeKey has now entered its commercial acceleration phase. Its year end pipeline of over $200 million in potential revenue opportunities from 2026 through 2028, includes more than $60 million linked to QS7001 and QVault TPM programs, reflecting rising global demand for quantum-resistant security and sovereign semiconductor design solutions. Q1 2026 revenue is expected to exceed $4M, representing over 100% growth versus Q1 2025. WISeKey also confirms that it expects FY 2026 revenue growth of +50% to +100% year-over-year. Key growth drivers for 2026: Commercial rollout of QS7001 post-quantum secure chips and QVault TPM, with initial revenues expected in late 2026. Full-year consolidation of IC'ALPS revenues. Expansion into the Trusted Platform Module (TPM) market. Launch of custom post-quantum ASIC development programs. Increased global adoption of PQC driven by quantum computing threats and U.S. NSA CNSA 2.0 mandates. Continued growth in PKI subscription services. Initial revenues from Quantix Edge Security and sovereign semiconductor initiatives. Looking ahead to 2026, the upcoming production launch of our Quantum Shield QS7001™ and QVault™ TPM solutions signals the start of a clear growth phase for WISeKey. Backed by its European Personalization Centers and global leadership in post-quantum cryptography and space connectivity, WISeKey is strategically positioned at the forefront of the digital trust revolution. Its mission remains steadfast: to create a secure, connected, and quantum-resilient future. SEALSQ continues to reinforce WISeKey's long-term strategy to build a vertically integrated quantum-secure platform across two foundational layers: Foundational Layer — Post-Quantum Silicon: Development of advanced cryptographic IP, secure elements, TPM architectures, and quantum-resistant chiplets (QS7001, QVault™ TPM, QASIC™). Computational Layer — Quantum Ecosystems: Strategic participation in companies building quantum processors (EeroQ ) and quantum-classical interface technologies (ColibriTD), extending trust from silicon identity to secure quantum access. Together, these initiatives position WISeKey and SEALSQ as key architects of next-generation digital trust infrastructure in the emerging quantum era. WISeKey Ecosystem: SEALSQ Quantum Fund Portfolio & Ownership Via its 52% voting control of SEALSQ, WISeKey participates directly in the R&D and commercial development of each Quantum Fund portfolio company. The Quantum Fund, which was established in 2025 and operates under the SEALQUANTUM.com platform, grew from $20M (February 2025) to $35M (July 2025) to over $100M (December 2025), supported by the WISeKey Group’s strong cash position. Each investment is structured as an active R&D and technology co-development partnership, not merely financial capital deployment. The Quantum Fund is not a passive financial vehicle. Through each investment, WISeKey via SEALSQ, contributes its secure chip IP, OISTE Root of Trust, FIPS 140-3 certified manufacturing processes, and OSPT center expertise, while receiving access to quantum algorithms, hardware architectures, and application-layer technologies. The combined R&D output flows directly into SEALSQ's next-generation QS7001, QVault TPM and further post-quantum chip roadmap including custom designs of quantum resistant semiconductor architectures. As digital threats evolve and the quantum era approaches, WISeKey continues to innovate and expand its solutions, ensuring that organizations, governments, and individuals can operate with confidence in a rapidly changing technological landscape. We are confident that our strategic initiatives and technological advancements will drive sustainable growth and reinforce our leadership in the global cybersecurity and digital trust ecosystem. 2026: The Year of Convergence for WISeKey WISeKey has now entered its ‘Year of Convergence’ by bringing together four foundational pillars: semiconductors, satellites, blockchain, and digital identity, into unified and interoperable ecosystems. This convergence allows WISeKey to offer end-to-end solutions where each component reinforces the other, enabling exponential innovation and resilience. WISeKey is no longer operating separate businesses, but a single interconnected ecosystem. Operating as a technology holding company and innovation platform, WISeKey is leveraging a proven strategic model exemplified by SEALSQ, which successfully listed on NASDAQ in 2023. WISeKey continues to apply this disciplined approach across its portfolio of subsidiaries, fostering innovation, structured growth, and long-term value creation for shareholders. Each entity within the WISeKey ecosystem follows a structured pathway from incubation and technological validation to commercialization, scaling, and ultimately potential public listing. This model enables WISeKey to unlock intrinsic value, attract strategic investors, and maximize returns while building a resilient and diversified global technology group spanning cybersecurity, semiconductors, space infrastructure, blockchain, AI, compliance, digital identity, and tokenization. SEALSQ develops post-quantum secure chips such as QS7001™ and QVault™ TPM, designed to generate both hardware revenue and recurring income through Outsourced Semiconductor Personalization and Test (OSPT) centers. WISeSat is expanding satellite constellation. Its 20th satellite was launched in November 2025, and it is planning its 21st launch for the end of March from California with SpaceX. Furthermore, its upcoming merger with a SPAC is expected to be completed in the first half of 2026, aims to accelerate the commercialization of our satellite-based cybersecurity and IoT ecosystem and enabling WISeSat to emerge as a new, independent publicly listed space-tech company on Nasdaq. WISeSat’s satellite constellation is purpose-built to deliver trusted IoT connectivity from space, secured by SEALSQ post-quantum cryptographic chips and anchored in the WISeKey Root of Trust. Simultaneously, SEALCOIN.AI is building the transactional layer that enables autonomous, chip-level machine-to-machine (M2M) transactions within the IoT economy. The introduction of SEALCOIN.AI further strengthens this architecture by securing AI agents and decentralized AI infrastructures with post-quantum cryptography, verifiable execution, and trusted identity. SEALCOIN.AI provides a quantum-resilient transaction and execution layer for autonomous AI systems, confidential inference, and machine-driven economic activity. Complementing this ecosystem, WISeID provides the global PKI infrastructure securing digital identities, devices, and transactions. It supports Matter Protocol certification for smart home devices, GSMA eUICC digital identity services, enterprise authentication, and sovereign digital identity frameworks. WISe.Art continues expanding secure tokenization and digital asset authentication, combining blockchain with hardware root-of-trust technologies to protect NFTs and high-value assets. WeCan strengthens the governance layer of the ecosystem through secure compliance workflows and KYC frameworks, while WISe.Social advances trusted, identity-verified digital communities aligned with WISeKey’s HUMAN-AI-T vision for responsible AI governance. Several Strategic Initiatives Are Amplifying This Trajectory WISeKey is advancing its “Quantum Made in USA” strategy as U.S. mandates for quantum-resistant cryptography intensify. SEALSQ has made two investments in EeroQ, a U.S. quantum chip company developing electron-on-helium (eHe) architecture. Under the NSA’s CNSA 2.0 policy, all new National Security Systems must be quantum-resistant by Jan. 1, 2027. The OMB’s Memorandum M-23-02 also requires agencies to identify and upgrade quantum-vulnerable systems. NIST finalized its first Post-Quantum Cryptography standards in 2024 - FIPS 203 (ML-KEM), FIPS 204 (ML-DSA), and FIPS 205 (SLH-DSA), laying the groundwork for secure next-gen infrastructure. Through SEALSQ, WISeKey is expanding its Quantum Highway™ initiative across India, U.S. and Europe, strengthening sovereign semiconductor ecosystems and regional PQC infrastructure. These initiatives support governments and enterprises in advancing quantum-secure communications, digital identity systems, and local chip design capabilities, reinforcing WISeKey’s role in building a globally integrated quantum-resilient infrastructure. SEALSQ’s Quantum Shield QS7001™ and QVault™ TPM portfolio targets mission-critical sectors including defense, satellites, IoT, automotive, V2X, and smart cities. With certifications such as FIPS 140-3 and Common Criteria EAL5+, integration of NIST-standardized algorithms including ML-DSA-87 (Dilithium) and ML-KEM-1024 (Kyber), and a customizable RISC-V platform enabling quantum-resistant ASIC development, SEALSQ is positioned as a key enabler of next-generation cybersecurity. The Quantix Edge Security initiative in Spain supports European semiconductor sovereignty. Collaboration with the Swiss Army demonstrates the operational integration of WISeSat, SEALSQ, and SEALCOIN technologies into secure sovereign communication frameworks. In parallel, WISeKey’s HUMAN-AI-T initiative launched with the United Nations positions the Company at the forefront of global AI governance, reinforcing leadership at the intersection of AI, cybersecurity, sovereignty, and trust. By converging semiconductors, satellites, blockchain, AI, digital identity, and compliance into a single architecture of trust, WISeKey is building not only technology platforms but the infrastructure for a secure and quantum-resilient digital economy, delivering sustainable growth and long-term value for shareholders. WISeKey monetizes its technology through a layered economic model: secure hardware forms the foundation, followed by identity and personalization services, satellite connectivity enabling global secure communications, and blockchain providing transactional infrastructure, . On top of this, compliance and digital asset platforms deliver governance and marketplace functionality. Together, these layers create multiple revenue streams per deployed device or user, generating compounding recurring income and positioning WISeKey to participate structurally in the emerging quantum-secure digital economy. 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, (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

Geneva, Switzerland, Feb. 23, 2026 (GLOBE NEWSWIRE) -- Launch of the Geneva Quantum Center of Excellence SEALSQ Corp (NASDAQ: LAES) ("SEALSQ" or "Company"), a company that focuses on developing and selling Semiconductors, PKI, and Post-Quantum technology hardware and software products, and its parent, WISeKey International Holding Ltd (“WISeKey”) (SIX: WIHN, NASDAQ: WKEY), a leading global cybersecurity, blockchain, and IoT company today announced the relocation of their Geneva headquarters to Pont-Rouge in August 2026, reflecting the group’s rapid expansion and its ambition to lead the next era of trusted digital and quantum technologies. Located in Lancy, Pont-Rouge is one of Switzerland’s most advanced and sustainable business districts, completed in 2023 and conceived as a next-generation urban and innovation hub. Centered around the Lancy-Pont-Rouge station, just six minutes from Geneva’s main station, it offers exceptional connectivity, low-carbon infrastructure, and a vibrant ecosystem of international companies, research actors, and innovation spaces. Spanning more than 100,000 m², Pont-Rouge combines premium office facilities, co-working environments, restaurants, housing, and iconic buildings such as the 15-storey Alto tower. The district already hosts leading firms including EY and KPMG, alongside innovation-driven workspaces such as Westhive. The Geneva Quantum Center of Excellence The new headquarters will host the Geneva Quantum Center of Excellence, a flagship initiative designed to position Geneva as a global reference for applied, secure, and industrially deployable quantum technologies. The Center will act as a deep-tech convergence platform, integrating quantum computing, post-quantum cybersecurity, secure semiconductors, space technologies, robotics, and AI into a unified, demonstrable ecosystem. CORE COMPONENTS SEALSQ Quantum Computer Hub The Quantum Computer Hub will focus on practical quantum architectures, emphasizing: Quantum-secure hardware roots of trust. Co-design of qubits, control electronics, firmware, and cryptographic stacks. Hybrid quantum / classical computing models optimized for real-world industrial use. Secure interfaces between quantum processors and embedded systems. Rather than pursuing purely academic experimentation, the hub is designed to industrialize quantum, enabling secure integration into critical infrastructures, defense, space, healthcare, mobility, energy, and financial systems. Full Demonstration of Group Technologies The Center will feature a live, end-to-end demonstration environment showcasing how the group’s technologies interoperate across domains: Post-quantum secure semiconductors and secure elements. Digital identity and PKI infrastructures. Secure IoT and edge devices. WISeRobot autonomous and secure robotic systems. WISeSat space-based cybersecurity, satellite identity, and secure communications. Blockchain-anchored trust services and decentralized authentication. This environment will allow governments, industrial partners, investors, and academic institutions to experience a complete secure digital and quantum value chain in operation. The SEALSQ Quantum Fund: Building a Root-to-Quantum Vertical Stack At the heart of the Geneva Quantum Center of Excellence lies the SEALSQ Quantum Investment Fund, SEALQUANTUM.com, an investment platform of over USD 100 million dedicated to building a root-to-quantum vertical stack, whilst accelerating the deployment of sovereign, scalable and secure quantum technologies in the United States and in Europe. The fund’s strategy covers the entire quantum value chain: Quantum materials and device physics. Qubit technologies and control layers. Secure semiconductor design and manufacturing. Post-quantum cryptographic algorithms and hardware acceleration. Embedded systems, firmware, and secure operating environments. System-level integration into IoT, satellites, robotics, and critical infrastructures. The objective is to eliminate fragmentation between research, hardware, and deployment, creating sovereign, trusted, and certifiable quantum solutions that can be adopted at scale. A Strategic Commitment to Geneva, Europe, and Technological Sovereignty The relocation to Pont-Rouge and the creation of the Geneva Quantum Center of Excellence underline SEALSQ and WISeKey’s long-term commitment to: European technological sovereignty in cybersecurity, semiconductors, and quantum computing Post-quantum readiness for governments and critical industries Sustainable and responsible innovation, aligned with Geneva’s international role Human-centric technology, where security, trust, and ethics are foundational by design By anchoring their future headquarters at Pont-Rouge, SEALSQ and WISeKey are not merely changing location, they are establishing a global reference platform for trusted digital and quantum infrastructures, designed in Europe and deployed worldwide. About SEALSQ: SEALSQ is a leading innovator in Post-Quantum Technology hardware and software solutions. Our technology seamlessly integrates Semiconductors, PKI (Public Key Infrastructure), and Provisioning Services, with a strategic emphasis on developing state-of-the-art Quantum Resistant Cryptography and Semiconductors designed to address the urgent security challenges posed by quantum computing. As quantum computers advance, traditional cryptographic methods like RSA and Elliptic Curve Cryptography (ECC) are increasingly vulnerable. SEALSQ is pioneering the development of Post-Quantum Semiconductors that provide robust, future-proof protection for sensitive data across a wide range of applications, including Multi-Factor Authentication tokens, Smart Energy, Medical and Healthcare Systems, Defense, IT Network Infrastructure, Automotive, and Industrial Automation and Control Systems. By embedding Post-Quantum Cryptography into our semiconductor solutions, SEALSQ ensures that organizations stay protected against quantum threats. Our products are engineered to safeguard critical systems, enhancing resilience and security across diverse industries. For more information on our Post-Quantum Semiconductors and security solutions, please visit www.sealsq.com. Forward-Looking Statements This communication expressly or implicitly contains certain forward-looking statements concerning SEALSQ Corp and its businesses. Forward-looking statements include statements regarding our business strategy, financial performance, results of operations, market data, events or developments that we expect or anticipate will occur in the future, as well as any other statements which are not historical facts. Although we believe that the expectations reflected in such forward-looking statements are reasonable, no assurance can be given that such expectations will prove to have been correct. These statements involve known and unknown risks and are based upon a number of assumptions and estimates which are inherently subject to significant uncertainties and contingencies, many of which are beyond our control. Actual results may differ materially from those expressed or implied by such forward-looking statements. Important factors that, in our view, could cause actual results to differ materially from those discussed in the forward-looking statements include SEALSQ's ability to continue beneficial transactions with material parties, including a limited number of significant customers; market demand and semiconductor industry conditions; and the risks discussed in SEALSQ's filings with the SEC. Risks and uncertainties are further described in reports filed by SEALSQ with the SEC. SEALSQ Corp 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.

WISeKey to Relocate Its Geneva Headquarters to Pont-Rouge in August 2026 Launch of the Geneva Quantum Center of Excellence Geneva, Switzerland, February 23, 2026 -- WISeKey International Holding Ltd (“WISeKey”) (SIX: WIHN, NASDAQ: WKEY), a leading global cybersecurity, blockchain, and IoT company today announced the relocation of its Geneva headquarters to Pont-Rouge in August 2026, reflecting the group’s rapid expansion and its ambition to lead the next era of trusted digital and quantum technologies. Located in Lancy, Pont-Rouge is one of Switzerland’s most advanced and sustainable business districts, completed in 2023 and conceived as a next-generation urban and innovation hub. Centered around the Lancy-Pont-Rouge station, just six minutes from Geneva’s main station, it offers exceptional connectivity, low-carbon infrastructure, and a vibrant ecosystem of international companies, research actors, and innovation spaces. Spanning more than 100,000 m², Pont-Rouge combines premium office facilities, co-working environments, restaurants, housing, and iconic buildings such as the 15-storey Alto tower. The district already hosts leading firms including EY and KPMG, alongside innovation-driven workspaces such as Westhive. The Geneva Quantum Center of Excellence The new headquarters will host the Geneva Quantum Center of Excellence, a flagship initiative designed to position Geneva as a global reference for applied, secure, and industrially deployable quantum technologies. The Center will act as a deep-tech convergence platform, integrating quantum computing, post-quantum cybersecurity, secure semiconductors, space technologies, robotics, and AI into a unified, demonstrable ecosystem. CORE COMPONENTS SEALSQ Quantum Computer Hub The Quantum Computer Hub, operated by WISeKey’s subsidiary, SEALSQ Corp (NASDAQ: LAES) ("SEALSQ"), a company that focuses on developing and selling Semiconductors, PKI, and Post-Quantum technology hardware and software products, will focus on practical quantum architectures, emphasizing: Quantum-secure hardware roots of trust. Co-design of qubits, control electronics, firmware, and cryptographic stacks. Hybrid quantum / classical computing models optimized for real-world industrial use. Secure interfaces between quantum processors and embedded systems. Rather than pursuing purely academic experimentation, the hub is designed to industrialize quantum, enabling secure integration into critical infrastructures, defense, space, healthcare, mobility, energy, and financial systems. Full Demonstration of Group Technologies The Center will feature a live, end-to-end demonstration environment showcasing how the group’s technologies interoperate across domains: Post-quantum secure semiconductors and secure elements. Digital identity and PKI infrastructures. Secure IoT and edge devices. WISeRobot autonomous and secure robotic systems. WISeSat space-based cybersecurity, satellite identity, and secure communications. Blockchain-anchored trust services and decentralized authentication. This environment will allow governments, industrial partners, investors, and academic institutions to experience a complete secure digital and quantum value chain in operation. The SEALSQ Quantum Fund: Building a Root-to-Quantum Vertical Stack At the heart of the Geneva Quantum Center of Excellence lies the SEALSQ Quantum Investment Fund, SEALQUANTUM.com, an investment platform of over USD 100 million dedicated to building a root-to-quantum vertical stack, whilst accelerating the deployment of sovereign, scalable and secure quantum technologies in the United States and in Europe. The fund’s strategy covers the entire quantum value chain: Quantum materials and device physics. Qubit technologies and control layers. Secure semiconductor design and manufacturing. Post-quantum cryptographic algorithms and hardware acceleration. Embedded systems, firmware, and secure operating environments. System-level integration into IoT, satellites, robotics, and critical infrastructures. The objective is to eliminate fragmentation between research, hardware, and deployment, creating sovereign, trusted, and certifiable quantum solutions that can be adopted at scale. A Strategic Commitment to Geneva, Europe, and Technological Sovereignty The relocation to Pont-Rouge and the creation of the Geneva Quantum Center of Excellence underline SEALSQ and WISeKey’s long-term commitment to: European technological sovereignty in cybersecurity, semiconductors, and quantum computing Post-quantum readiness for governments and critical industries Sustainable and responsible innovation, aligned with Geneva’s international role Human-centric technology, where security, trust, and ethics are foundational by design By anchoring their future headquarters at Pont-Rouge, SEALSQ and WISeKey are not merely changing location, they are establishing a global reference platform for trusted digital and quantum infrastructures, designed in Europe and deployed worldwide. 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

Geneva, Switzerland, December 18, 2025 – WISeKey International Holding Ltd (“WISeKey”) (SIX: WIHN, NASDAQ: WKEY), a leading global cybersecurity, blockchain, and IoT company, and the OISTE Foundation today announced their participation in the World Human Rights Concert, presented at the United Nations Headquarters in Geneva, in collaboration with ONUART and its partners. In alignment with their shared mission to uphold human dignity, secure digital ecosystems, and global cyber-resilience, WISeKey and the OISTE Foundation reaffirm their commitment to advancing equitable access to trusted technologies. Central to this commitment is the HUMAN-AI-T initiative (Human-Centered Artificial Intelligence & Technology), launched at the United Nations to promote the development of Artificial Intelligence and emerging technologies that fully respect Human Rights, human dignity, cultural diversity, and ethical values. Through this collaboration, WISeKey and OISTE advocate for ensuring that Artificial Intelligence and Quantum technologies are designed, governed, and deployed in full compliance with international Human Rights frameworks, ethical principles, and the rule of law, placing humanity at the heart of technological progress. The World Human Rights Concert, co-organized by the United Nations, stands as a powerful symbol of unity, bringing together culture, music, and collective purpose to inspire dialogue, cooperation, and peace among nations. The event reinforces the universal values enshrined in the Universal Declaration of Human Rights, emphasizing their enduring relevance in the digital age. “Technology must never advance at the expense of humanity,” said Carlos Moreira, Secretary General of the OISTE Foundation and Founder & CEO of WISeKey. “Through the HUMAN-AI-T initiative, we are committed to ensuring that Artificial Intelligence and Quantum technologies remain aligned with human dignity, fundamental rights, and ethical responsibility. The World Human Rights Concert is a powerful reminder that culture, innovation, and human values must progress together to build a secure, inclusive, and peaceful future for all.” OISTE, WISeKey, and its subsidiary SEALSQ Corp (NASDAQ: LAES) ("SEALSQ"), a company that focuses on developing and selling Semiconductors, PKI, and Post-Quantum technology hardware and software products, are proud to contribute to this vision, recognizing that protecting digital rights and human dignity in an era of exponential technological change is essential to safeguarding freedom, equality, trust, and social cohesion across our increasingly interconnected world. Together with ONUART and its partners, WISeKey and the OISTE Foundation continue to advance a secure, inclusive, and human-centric digital future, where innovation serves humanity and technology remains a force for peace, justice, and sustainable development. About the OISTE Foundation Founded in Switzerland in 1998, the OISTE Foundation was established to promote trust, security, and human protection in the digital world. From its origins in advancing international standards for secure electronic transactions and digital certification, OISTE has evolved into a leading human-centric organization addressing the societal and ethical implications of Artificial Intelligence, Quantum technologies, and advanced deep technologies. As emerging technologies increasingly influence governance, economies, and human behavior, OISTE’s mission is to ensure that technological progress does not compromise human dignity, fundamental rights, or democratic values. The Foundation actively promotes the development of human protection agents, ethical frameworks, and trusted infrastructures designed to prevent misuse, abuse, or unintended harm arising from AI, Quantum computing, cybersecurity systems, and other deep-tech innovations. OISTE advocates for responsible innovation, emphasizing interoperability, transparency, accountability, and resilience across digital ecosystems. Through its initiatives—including contributions to international policy dialogue, standards development, and UN-led programs—OISTE works to ensure that advanced technologies remain aligned with Human Rights, cultural diversity, and ethical principles, and that they serve as instruments of empowerment rather than control. The OISTE Foundation is a not-for-profit organization based in Geneva, Switzerland, governed by Articles 80 et seq. of the Swiss Civil Code. It holds special consultative status with the United Nations Economic and Social Council (ECOSOC) and is a member of the Not-for-Profit Constituency (NPOC) of ICANN. Through its global partnerships, OISTE continues to play a critical role in shaping a secure, inclusive, and human-centric digital future. 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

This article first appeared on GuruFocus. Release Date: September 26, 2025 For the complete transcript of the earnings call, please refer to the full earnings call transcript. WISeKey International Holding Ltd (NASDAQ:WKEY) is pioneering the transition to post-quantum cryptography, ensuring existing infrastructures remain protected while preparing for future quantum challenges. The company is launching the world's first post-quantum chip, QuantumH QS 7,001, which aims to secure critical applications against future quantum computing threats. WISeKey International Holding Ltd (NASDAQ:WKEY) has a diversified business model with multiple subsidiaries contributing to a convergent ecosystem, enhancing revenue streams. The company has secured a strategic partnership with the Spanish government, involving a 20 million investment, which is expected to generate 25 million in committed revenue over the next three years. WISeKey International Holding Ltd (NASDAQ:WKEY) has a strong balance sheet with a cash balance of $124.6 million, allowing for accelerated technological development and strategic investments. Revenues for the first half of 2025 grew only slightly by $0.1 million to $5.3 million, reflecting a transition period ahead of a strategic shift. Operating losses increased by $13.2 million to $27.3 million, driven by a one-off stock-based compensation charge and increased investment in R&D. The net loss for the first half of 2025 was $22.3 million, an increase of $6.8 million compared to the same period last year. The company is facing challenges in commercializing its WiseArt platform due to the collapse of the NFT market, requiring re-education of the market. There is a dependency on future regulatory changes and market adoption of quantum-resistant technologies, which could impact the company's growth projections. Warning! GuruFocus has detected 7 Warning Signs with WKEY. Is WKEY fairly valued? Test your thesis with our free DCF calculator. Q: Can you elaborate on the contribution from Quantex and the expected margins on the project revenue? A: John O'Hara, CFO, explained that the Quantex deal involves a revenue recognition of $25 million over three years. Margins will vary, with some lower due to equipment and plant installations, while others will be higher due to professional services. Additionally, there is potential for product revenue as they plan to sell next-generation semiconductors even before the center is fully operational. Q: How significant is the TPM in the $170 million business pipeline? A: Carlos Morera, CEO, stated that the pipeline is a mix of the new QS 701 chip and TPM. The regulatory push for quantum resilience by 2027 is driving demand, and the TPM is expected to contribute significantly to the pipeline, especially as new centers are established. Q: Can you discuss the path to commercializing WiSeArt and its integration with WiseCoin? A: Carlos Morera explained that WiSeArt is evolving from an art-focused platform to an industrial generator of digital twin components. WiseCoin will serve as the payment method for machine-to-machine transactions, creating new revenue streams. The integration aims to simplify processes and enhance the digital ecosystem. Q: What are the strategic implications of the personalization center deal in Spain? A: Carlos Morera highlighted that the personalization center is crucial as it addresses national concerns over semiconductor dependency. The deal involves knowledge transfer, equipment, and IP, with significant investment from the Spanish government. This initiative is expected to create synergies and open new markets. Q: How does WISeKey plan to leverage its quantum convergence strategy for future growth? A: Carlos Morera emphasized that the quantum convergence strategy integrates traditional and quantum-safe technologies to ensure security in the post-quantum era. This approach is expected to drive revenue growth by creating multiple monetization layers and recurring income streams, positioning WISeKey as a leader in digital trust. For the complete transcript of the earnings call, please refer to the full earnings call transcript.

WISeKey Reports H1 2025 Results; Updates on the Quantum Convergence Strategy Underpinned by a Strong Balance Sheet Schedules Conference Call and Webcast for Friday, September 26 at 8:00 am ET (2:00 pm CET) Geneva, Switzerland – September 23, 2025: – Ad-Hoc announcement pursuant to Art. 53 of SIX Listing Rules – WISeKey International Holding Ltd. (“WISeKey”, the “Group” or the “Company”) (SIX: WIHN, NASDAQ: WKEY), a global leader in cybersecurity, digital identity, and Internet of Things (IoT) innovations operating as a holding company, today announces its unaudited financial results for the six-month period ending June 30, 2025 (H1 2025). WISeKey’s performance in the first half of 2025 is in line with our expectations, while the Company is executing on its strategy moving towards next-generation semiconductors, space connectivity, transactional IoT, trust services and blockchain, laying the foundation for sustainable long-term growth. Specifically: Revenues for the period grew slightly by $0.1 million to $5.3 million, in line with our expectations reflecting the continued transition period ahead of the industry-wide strategic shift towards post-quantum and IoT-driven technologies. The Company expects strong growth in the second half of the year with full year revenues expected to be in the range of $18.0 to $21.0 million. This growth is driven by the expected return to growth in the demand for SEALSQ Corp’s (NASDAQ: LAES, “SEALSQ”) traditional products, the consolidated revenue of IC’ALPS since the completion of the acquisition by SEALSQ on August 4, 2025, as well as the continuing development of the revenue streams of our other business divisions. The Company’s operating losses increased by $13.2 million to $27.3 million largely driven by a one-off stock-based compensation charge of $10.1 million, in addition to increased investment in research and development of $1.0 million and an increase in the general and administrative costs as a result of an investment in the infrastructure of the Company to support the developing verticals. The increase in the operating losses is partially offset by an increased non-operating income due to a one-off gain on the settlement of the ExWorks loan of $3.7 million and interest earned on cash deposits of $1.6 million. This results in a net loss of $22.3 million which has increased by $6.8 million in comparison with the same period last year. Investments in research and development totaled $5.8 million that focused on SEALSQ’s quantum-resistant chips, the SEALCOIN AG (“SEALCOIN”) transactional IoT platform, WISeSat.Space AG (“WISeSat”) expansion, and the launch of the WISe.ART 3.0 platform. Our cash balance of $124.6 million as of June 30, 2025, will allow the Group to accelerate its technological development and to execute strategic investments that expand its capabilities, strengthen growth pipeline and position it at the forefront of the transition to quantum-resilient security solutions. The first half of 2025 marked a decisive step forward in WISeKey’s Convergence strategy. By integrating semiconductors, trust services, satellites, blockchain, and digital identity into a unified architecture of trust, WISeKey is no longer operating separate businesses but a single interconnected ecosystem. This Convergence is starting to demonstrate its financial potential, as each component drives value creation for the others, enabling WISeKey to multiply revenues, reduce dependency on any single line of business, and capture new, recurring income streams. For shareholders, the value of this model lies in its scalability and resilience. Hardware sales will generate immediate revenues, while OSPT services, satellite subscriptions and blockchain transactions will create recurring income streams that compound with adoption. A defense contractor adopting SEALSQ chips also becomes a potential client for OSPT services, a potential subscriber to WISeSat connectivity services, a potential participant in SEALCOIN t-IoT transactions, and potentially a user of WISe.ART for tokenized asset management. Few companies in the sector can offer this depth of vertical integration. Strategic partnerships are amplifying these efforts. The Quantix Edge Security initiative in Spain positions WISeKey at the heart of Europe’s semiconductor sovereignty strategy. Collaboration with the Swiss Army, combining the technology of WISeSat, SEALSQ and SEALCOIN into a single project, demonstrates that the Convergence model is already underway for secure, sovereign communications. At the same time, WISeKey’s HUMAN-AI-T initiative with the United Nations positions WISeKey at the forefront of global AI governance, reinforcing its leadership at the intersection of AI, security, and trust. As WISeKey moves into the second half of 2025, its focus is on scaling execution. The Company is preparing for the commercial launch of SEALSQ’s QVault-TPM in Q4 2025 that is expected to unlock significant new growth in 2026 and beyond. It is expanding the WISeSat constellation to increase global coverage and subscription revenues. SEALCOIN and WISe.ART are being brought from pilot stages into commercial deployment and are expected to generate transaction-based income streams. WISeKey is also expanding its OSPT footprint, with the goal of allowing every SEALSQ chip to be rapidly personalized and integrated into the ecosystem. With a robust revenue pipeline across the entire group—along with WISeKey’s strong balance sheet and growing recognition of its role at the intersection of quantum security, space connectivity, blockchain, and AI—WISeKey is building a sovereign, trusted digital infrastructure designed for scale, resilience, and long-term shareholder value. WISeKey is not merely adapting to technological change; it is shaping it. Conference Call The Company will host a conference call to review its results on Friday, September 26, 2025, at 8:00 am ET (2:00 pm CET). Toll-Free Dial-In Number: 877-445-9755; International Dial-In Number: 201-493-6744. The webcast of the call can be accessed through the Investor Relations section of WISeKey’s website at www.wisekey.com. An archived version of the call will also be made available. WISeKey Group Structure and Participation SEALSQ Corp (NASDAQ: LAES) WISeKey controls: 52% of voting rights as of June 30, 2025. Role within Convergence: Foundation of the group strategy. SEALSQ develops post-quantum secure semiconductors (e.g., QS7001) and QVault-TPM chips. Monetization potential: Immediate revenues from chip sales. Recurring revenues via our planned OSPT (Outsourced Semiconductor Personalization & Test) centers where WISeKey will earn service fees each time a chip is provisioned. Integration into WISeSat for secure IoT connectivity, expanding recurring income streams. WISeSat.Space AG WISeKey ownership: 100% Role within Convergence: Provides satellite-based IoT connectivity and secure communications, enabling SEALSQ chips to connect securely anywhere in the world. Monetization potential: Subscription revenues from IoT connectivity services. Defense and national security applications (Swiss Army, EU projects). Strategic projects (88-satellite constellation, European-neutral constellation). SEALCOIN AG WISeKey ownership: 75% Role within Convergence: Aims to power machine-to-machine (M2M) and transactional IoT (t-IoT), where each chip-secured device would be able to transact autonomously within SEALCOIN. Monetization potential: Transaction fees from autonomous IoT exchanges. Integration with satellites + chips = creates a third recurring revenue layer. Backed by a $50 million investment commitment from GEM Digital through a structured token subscription agreement. WISe.ART WISeKey ownership: 87.5% Role within Convergence: Digital marketplace for authenticated NFT and tokenized asset trading. Extends WISeKey’s trust model to both digital and physical assets. Monetization potential: Transaction revenues from NFT/digital assets. Expansion of blockchain infrastructure revenues. Positioned as the fourth monetization layer in the Convergence model. WISeKey SA (WISeID, INeS Platform and PKI as a Service) WISeKey ownership: 96% (this is the core WISeKey platform). Role within Convergence: Provides the PKI backbone (public key infrastructure) enabling device attestation, secure identity management and lifecycle management of chips and devices. Monetization potential: Service fees for PKI and digital identity lifecycle management. Adoption in smart home / Matter protocol products and GSMA eUICC services. Summary of WISeKey Participation SEALSQ: 52% voting rights (semiconductors, hardware revenues & personalization services). WISeSat: 100% (satellite IoT connectivity, subscriptions & defense). SEALCOIN: 75% (transactional IoT & machine-to-machine transaction fees). WISe.ART: 87.5% (NFTs, tokenized assets & blockchain monetization). WISeID (WISeKey SA): 96% (PKI, digital identity & backbone of trust infrastructure). WISeKey has designed a vertically integrated Convergence ecosystem where each company bolsters and magnifies the impact the others — from chip to trust services to satellite to blockchain to marketplace. UNAUDITED ADDITIONAL FINANCIAL & OPERATIONAL DATA Unaudited Condensed Consolidated Statements of Comprehensive Income/(Loss) [as reported] The notes are an integral part of our consolidated financial statements. Unaudited Condensed Consolidated Balance Sheets [as reported] The notes are an integral part of our consolidated financial statements. 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

Roadmap: From Proof of Concept to “Satellite-as-a-Service” The upcoming satellite launch represents Phase One of SEALCOIN’s space integration roadmap. Future iterations will embed SEALCOIN capabilities directly within satellites at the silicon level using Secure Element technology, creating a foundation for autonomous, spaceborne infrastructure that actively participates in decentralized digital economies. “Our goal with SEALCOIN has always been to make transactional IoT borderless, scalable, and secure,” said Carlos Moreira, CEO of WISeKey Group. “With this milestone, we’ve expanded that vision into space, opening the door to solutions for regions with no cellular or terrestrial coverage. This launch sets the stage for a new economy—secure, decentralized, and space-enabled.” Toward a Borderless, Resilient IoT Economy SEALCOIN’s modular architecture supports a plug-and-play integration model, allowing interoperability with diverse sensors and satellite operators. This flexibility positions SEALCOIN as the backbone for a truly global, device-to-device IoT economy—resilient by design, autonomous in execution, and borderless in scope. The upcoming launch will further strengthen WISeKey’s leadership at the intersection of cybersecurity, blockchain, IoT, and space technology. This next-generation satellite model will enhance the current constellation with advanced technological innovations, incorporating features such as: This next-generation satellite model is designed to significantly enhance the capabilities of the current constellation through a series of advanced technological innovations. These improvements will unlock higher performance, greater resilience, and broader application potential. Among the key features being integrated are: Software-defined radio technology, allowing flexible in-orbit reconfiguration and adaptation to evolving communication standards, thereby ensuring long-term relevance and efficiency. Higher data rate communications, enabling faster, more robust, and more secure data transfer to support demanding IoT and cybersecurity applications.but also establishes SEALCOIN as the first digital token to transact from orbit, heralding a new era of space-enabled decentralized finance. About WISeSat.Space WISeSat.Space AG is pioneering a transformative approach to IoT connectivity and climate change monitoring through its innovative satellite constellation. By providing cost-effective, secure, and global IoT connectivity, WISeSat is enabling a wide range of applications that support environmental monitoring, disaster management, and sustainable practices. The integration of satellite data with advanced climate models holds great promise for enhancing our understanding of climate change and developing effective strategies to combat its impacts. As the world continues to grapple with the challenges of climate change, initiatives like WISeSat’s IoT satellite constellation are essential for creating a more resilient and sustainable future. 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