SEALSQ updates post-quantum chip certification plans

SEALSQ Corp. provides an update on its post-quantum semiconductor certification plans for its QS7001 Post-Quantum Secure Element and QVault Trusted Platform Module product lines.

Rhea-AI Filing Summary

SEALSQ Corp. provides an update on its post-quantum semiconductor certification plans for its QS7001 Post-Quantum Secure Element and QVault Trusted Platform Module product lines. In response to regulatory and technical developments, the company has revised certain certification milestones for these products.

SEALSQ states that it expects to achieve first commercial revenues from its QVault TPM products by the end of 2026, with forward-looking statements outlining anticipated timelines for Hardware Evaluation Test Reports, Common Criteria laboratory letters, FIPS 140-3 submissions, TCG certifications, and availability of engineering samples. The update highlights that outcomes depend on certification processes, regulatory developments, market acceptance of post-quantum security technologies, and broader semiconductor industry conditions. The information is incorporated by reference into SEALSQ’s existing Form F-3 and Form S-8 registration statements.

Key Figures

Target timing for first QVault TPM revenues: end of 2026 Form F-3 file number: 333-290963 Form S-8 file number: 333-287139

3 metrics

Target timing for first QVault TPM revenues end of 2026 Expected timing of first commercial revenues from QVault Trusted Platform Module products

Form F-3 file number 333-290963 Registration statement into which this information is incorporated by reference

Form S-8 file number 333-287139 Registration statement into which this information is incorporated by reference

Key Terms

post-quantum semiconductor certification, Common Criteria, FIPS 140-3, Trusted Platform Module, +1 more

5 terms

post-quantum semiconductor certification technical

"update on its post-quantum semiconductor certification timelines"

Common Criteria regulatory

"Common Criteria laboratory letters for the QS7001 product line"

FIPS 140-3 regulatory

"expected timing for FIPS 140-3 submissions and TCG certifications"

A U.S. government standard that sets detailed security requirements for cryptographic modules—software or hardware components that encrypt data and manage keys. Think of it as a rigorous safety inspection for digital locks: passing the test signals that a product meets recognized security practices, which matters to investors because certification can affect a company’s ability to sell to governments and regulated industries, reduce legal and operational risk, and support customer trust.

Trusted Platform Module technical

"QVault Trusted Platform Module The Company expects first commercial revenues"

A trusted platform module (TPM) is a small, dedicated hardware chip in a computer or device that securely stores digital keys, passwords and security measurements and performs protected cryptographic tasks. Think of it as a tamper-resistant safe or fingerprint lock for a machine’s identity and startup process. For investors, TPMs matter because they reduce the risk of hacks, help companies meet security rules and customer trust standards, and can affect product value, liability and compliance costs.

Hardware Evaluation Test Reports technical

"expected timing for receipt of Hardware Evaluation Test Reports"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did SEALSQ Corp. (LAES) disclose about its post-quantum certification timelines?

SEALSQ Corp. disclosed that it has revised certification milestones for its QS7001 post-quantum secure element and QVault TPM product lines due to regulatory and technical developments, and outlined updated expectations for key certifications and related testing steps.

When does SEALSQ Corp. (LAES) expect first commercial revenues from QVault TPM products?

SEALSQ expects first commercial revenues from its QVault Trusted Platform Module products by the end of 2026. This expectation is forward-looking and depends on successful certifications, regulatory processes, and market demand for post-quantum security technologies.

Which SEALSQ (LAES) products are included in the post-quantum update?

The update covers SEALSQ’s QS7001 Post-Quantum Secure Element product line and its QVault Trusted Platform Module (TPM) product line, including anticipated timelines for evaluations, certifications, and eventual commercialization of these post-quantum security solutions.

What key risks did SEALSQ Corp. (LAES) highlight related to its post-quantum plans?

SEALSQ highlighted risks including timing and success of product certifications, possible changes in certification requirements, regulatory developments, market acceptance of post-quantum security technologies, semiconductor industry conditions, and reliance on a limited number of significant customers and material counterparties.

How is this SEALSQ (LAES) 6-K linked to its existing F-3 and S-8 registrations?

The information in this report is incorporated by reference into SEALSQ’s Form F-3 (File No. 333-290963) and Form S-8 (File No. 333-287139), and into the related base prospectuses and prospectus supplements, unless later filings supersede it.

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Accepted by SEC EDGAR 08/14/2026 - 04:15 PM EDT Learn about SEC filing dates

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 August 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:

☒ Form 20-F        ☐ Form 40-F

SEALSQ Corp. (the “Company”) is providing the following update on its post-quantum semiconductor certification timelines. In light of certain regulatory and technical developments, the Company has revised certain milestones as follows:

QS7001 Post-Quantum Secure Element

● QS7001 V1: The Company now expects to receive the Hardware Evaluation Test Report and Common Criteria laboratory letter in September 2026.

● QS7001 V2: The Company now expects to receive the full PQC Test Report and Common Criteria laboratory letter in December 2026.

QVault Trusted Platform Module

● QVault TPM-183: The Company expects the FIPS 140-3 laboratory letter to NIST in December 2026 and TCG certification in approximately November 2026.

● QVault TPM-185: Engineering samples are now available. The Company expects FIPS 140-3 submission in approximately February 2027 and TCG certification in approximately April 2027.

The Company expects first commercial revenues from QVault TPM products by the end of 2026.

Forward-Looking Statements

This Report on Form 6-K contains forward-looking statements within the meaning of the Securities Act of 1933, as amended, and the Securities Exchange Act of 1934, as amended. Forward-looking statements include statements regarding the Company’s post-quantum semiconductor certification timelines, expected timing for receipt of Hardware Evaluation Test Reports and Common Criteria laboratory letters for the QS7001 product line, expected timing for FIPS 140-3 submissions and TCG certifications for the QVault TPM product line, availability of engineering samples, and expected timing of first commercial revenues from post-quantum products, and any other statements that are not historical facts.

These statements are based on management’s current expectations and are subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied, including: the timing and success of product certifications, including the ability to meet revised certification milestones and any further delays or changes in certification requirements or testing protocols; regulatory developments affecting certification processes; the development and market acceptance of post-quantum security technologies; market demand and semiconductor industry conditions; the Company’s ability to continue beneficial transactions with material parties, including a limited number of significant customers; and the risks discussed in the Company’s filings with the U.S. Securities and Exchange Commission.

The Company does not undertake any obligation to update any forward-looking statements contained herein as a result of new information, future events, or otherwise.

The information contained in this Report on Form 6-K is hereby incorporated by reference into the registration statement on Form F-3 of the Company (File No. 333-290963), as amended, and the registration statement on Form S-8 of the Company (File No. 333-287139), and into the base prospectus and any prospectus supplement outstanding under each of the foregoing registration statements, to the extent not superseded by documents or reports subsequently filed or furnished by the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended.

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SIGNATURES

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.

Date: August 14th, 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

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