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WISeKey Joins the Hedera Council Network of Strategic and Community Partners

WISeKey Joins the Hedera Council Network of Strategic and Community Partners

WISeKey Appoints Alexander Hirsch as Group Chief Marketing Officer to Coordinate Global Marketing Across the Group

WISeKey Appoints Alexander Hirsch as Group Chief Marketing Officer to Coordinate Global Marketing Across the Group Geneva, Switzerland — August 21, 2026 — WISeKey International Holding Ltd. (SIX: WIHN; NASDAQ: WKEY), a global leader in cybersecurity, digital identity and IoT, today announced the appointment of Alexander Hirsch as Group Chief Marketing Officer (CMO), with responsibility for coordinating and accelerating the marketing, communications, brand positioning and go-to-market activities of WISeKey Group and its affiliated companies, including its SEALSQ Corp (Nasdaq: LAES) (“SEALSQ”), SEALQUANTUM, WISeSat and WISeID subsidiaries.

WISeKey Announces Extraordinary General Meeting to Approve Proposed Redomiciliation to the British Virgin Islands

Zug, Switzerland, August 6, 2026 – Ad-Hoc announcement pursuant to Art. 53 of the SIX Listing Rules – WISeKey International Holding Ltd (“WISeKey” or the “Company”) (SIX: WIHN; Nasdaq: WKEY) announced that it will hold an Extraordinary General Meeting of shareholders (the “EGM”) on September 9, 2026, at 3:00 p.m. Swiss time, at the offices of Homburger AG, Prime Tower, Hardstrasse 201, 8005 Zurich, Switzerland.