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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
FORM 6-K
Report of Foreign Private Issuer
Pursuant to Rule 13a-16 or 15d-16 under the
Securities Exchange Act of 1934
For the month of April 2026
Commission File Number: 001-41709
SEALSQ CORP
(Exact Name of Registrant as Specified in Charter)
N/A
(Translation of Registrant’s name into English)
| British Virgin Islands | Avenue Louis-Casaï 58 1216 Cointrin, Switzerland |
Not Applicable |
| (State or other jurisdiction of incorporation or organization) |
(Address of principal executive office) | (I.R.S. Employer Identification No.) |
Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:
x Form 20-F ¨ Form 40-F Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
| Exhibit | ||
| No. | Description | |
| 99.1 | 2025 Annual Report of SEALSQ Corp |
SIGNATURES
| Date: April 2, 2026 | SEALSQ CORP | ||
| By: | /s/ Carlos Moreira | ||
| Name: | Carlos Moreira | ||
| Title: | Chief Executive Officer | ||
| By: | /s/ John O’Hara | ||
| Name: | John O’Hara | ||
| Title: | Chief Financial Officer | ||