Moreira Carlos → WISeQey Corp. WSKEF

Item 4 of the Schedule 13D is hereby supplemented as follows: The Reporting Person acquired the securities reported herein for investment purposes and as part of his compensation for his service as Chief Executive Officer of WISeKey. The Reporting Person may, from time to time, acquire additional securities of the Issuer, dispose of some or all of such securities, or take other actions with respect to his investment in the Issuer. Any such actions will be dependent upon the Reporting Person's review of, among other things, the business and prospects of the Issuer, other investment and business opportunities available to the Reporting Person, general stock market and economic conditions, tax considerations, and other factors. The Reporting Person holds his shares and options for investment purposes and to maintain control of the Issuer. As described in Item 3 above, on June 26, 2026, WISeKey entered into the Merger Agreement with WISeQey to effect the Merger and WISeKey's redomiciliation from Switzerland to the British Virgin Islands. The Reporting Person, in his capacity as Chairman and Chief Executive Officer of WISeKey, approved and supported the Merger. At the EGM held on September 9, 2026, the Reporting Person voted all of his Class A Shares and Class B Shares of WISeKey in favor of the Merger. The Merger became legally effective on October 1, 2026. Following completion of the Merger, the Reporting Person's Class B Shares of WISeKey were exchanged for ordinary shares of WISeQey and the Reporting Person's Class A Shares of WISeKey were exchanged for Class F Shares of WISeQey, in each case in accordance with the exchange ratios set forth in the Merger Agreement. The Reporting Person expects to continue to hold his interest in WISeQey for investment purposes and to maintain control. Except as set forth herein, the Reporting Person does not have any present plans or proposals which relate to or would result in any of the transactions described in subparagraphs (a) through (j) of Item 4 of Schedule 13D.