0002110281-26-000021.txt : 20260424 0002110281-26-000021.hdr.sgml : 20260424 20260424165937 ACCESSION NUMBER: 0002110281-26-000021 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20260422 FILED AS OF DATE: 20260424 DATE AS OF CHANGE: 20260424 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: O'Hara John Charles CENTRAL INDEX KEY: 0002110281 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-41709 FILM NUMBER: 26895397 MAIL ADDRESS: ADDRESS IS A NON US LOCATION: YES STREET 1: C/O WISEKEY INTERNATIONAL HOLDING AG STREET 2: AVENUE LOUIS-CASAI 58 CITY: COINTRIN NON US STATE TERRITORY: GENEVA PROVINCE COUNTRY: V8 ZIP: 1216 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: SEALSQ Corp CENTRAL INDEX KEY: 0001951222 STANDARD INDUSTRIAL CLASSIFICATION: SEMICONDUCTORS & RELATED DEVICES [3674] ORGANIZATION NAME: 04 Manufacturing EIN: 000000000 STATE OF INCORPORATION: D8 FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: AVENUE LOUIS-CASAI 58 CITY: COINTRIN STATE: V8 ZIP: 1216 BUSINESS PHONE: 212-336-2039 MAIL ADDRESS: STREET 1: CRAIGMUIR CHAMBERS, ROAD TOWN CITY: TORTOLA STATE: D8 ZIP: VG 1110 FORMER COMPANY: FORMER CONFORMED NAME: SEAL (BVI) Corp. DATE OF NAME CHANGE: 20221019 4 1 form4-04242026_080433.xml X0609 4 2026-04-22 0001951222 SEALSQ Corp LAES 0002110281 O'Hara John Charles true C/O SEALSQ CORP AVENUE LOUIS-CASAI 58 COINTRIN V8 1216 SWITZERLAND true true false false Chief Financial Officer 1 Ordinary Shares 2026-04-22 4 S 0 10000 3.0561 D 296095 D Ordinary Shares 2026-04-23 4 S 0 10000 2.88 D 286095 D Ordinary Shares 2026-04-24 4 S 0 5250 2.9065 D 280845 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 17, 2025. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.97 to $3.16, inclusive. The reporting person undertakes to provide to SEALSQ Corp, any security holder of SEALSQ Corp, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.7884 to $3.02, inclusive. The reporting person undertakes to provide to SEALSQ Corp, any security holder of SEALSQ Corp, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (3) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.8234 to $2.97, inclusive. The reporting person undertakes to provide to SEALSQ Corp, any security holder of SEALSQ Corp, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (4) to this Form 4. /s/ John O'Hara 2026-04-24