Zug, Switzerland, April 30, 2024 (GLOBE NEWSWIRE) -- Also Files Form 12b-25 with SEC Related to Annual Report on Form 20-F Ad hoc announcement pursuant to Art. 53 of SIX Listing Rules – WISeKey International Holding Ltd. ("WISeKey" or the "Company") ((SIX: WIHN, NASDAQ:WKEY), a leading global cybersecurity and IoT company, announced today that on April 29, 2024, SIX Exchange Regulation AG approved an extension of the deadline for the publication of its Annual Report for the fiscal year ended December 31, 20 ...