SEALSQ names Daniel Brau Chief Quantum Officer

SEALSQ Corp appointed Daniel Brau as Chief Quantum Officer effective August 4, 2026, following its acquisition of Miraex SA, the Swiss photonics-based quantum interconnect company he founded.

Rhea-AI Filing Summary

SEALSQ Corp appointed Daniel Brau as Chief Quantum Officer effective August 4, 2026, following its acquisition of Miraex SA, the Swiss photonics-based quantum interconnect company he founded. Miraex now operates as SEALSQ’s quantum networking and interconnect subsidiary within the SEALQuantum Sovereign Vertical Stack.

Brau, 58, previously served as Chief Executive Officer of Miraex from September 2022 to August 2026, and earlier as Managing Director at the Tibidabo Group for four years, focusing on dual-use imaging for scientific and defense applications. As Chief Quantum Officer, he is responsible for commercializing and integrating SEALSQ’s quantum technology portfolio, building strategic partnerships, and creating synergies across the SEALQuantum ecosystem. The company also states that this information is incorporated by reference into its existing Form F-3 and Form S-8 registration statements.

Key Figures

Effective date of Chief Quantum Officer role: August 4, 2026 Chief Quantum Officer age: 58 Miraex CEO tenure: September 2022 to August 2026 +4 more

7 metrics

Effective date of Chief Quantum Officer role August 4, 2026 Date Daniel Brau became Chief Quantum Officer of SEALSQ

Chief Quantum Officer age 58 Age of Daniel Brau as disclosed in his biographical information

Miraex CEO tenure September 2022 to August 2026 Period during which Daniel Brau served as CEO of Miraex

Tibidabo Group tenure four years Length of time Daniel Brau was Managing Director at Tibidabo Group

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

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

Signature date August 10, 2026 Date SEALSQ’s CEO and CFO signed the report

Key Terms

Chief Quantum Officer, photonics-based quantum interconnect, SEALQuantum Sovereign Vertical Stack, dual-use imaging, +1 more

5 terms

Chief Quantum Officer technical

"announced the appointment of Daniel Brau as the Company’s Chief Quantum Officer"

photonics-based quantum interconnect technical

"Miraex SA, the Swiss photonics-based quantum interconnect company he founded"

SEALQuantum Sovereign Vertical Stack technical

"Miraex now serves as SEALSQ’s quantum networking and interconnect subsidiary within the SEALQuantum Sovereign Vertical Stack"

dual-use imaging technical

"a business unit focused on dual-use imaging applications for scientific and defense industries"

commercialization financial

"responsible for overseeing the commercialization and integration of the Company's quantum technology portfolio"

Commercialization is the process of bringing a new product, service, or idea to the market so that people can buy and use it. It involves turning an invention or development into something that is widely available and profitable. For investors, commercialization matters because it signals the transition from development to generating revenue, indicating potential growth and the likelihood of a return on investment.

FAQ

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What did SEALSQ Corp (LAES) announce in its August 2026 Form 6-K?

SEALSQ announced the appointment of Daniel Brau as Chief Quantum Officer effective August 4, 2026, following its acquisition of Swiss photonics-based quantum interconnect company Miraex SA, which now operates as its quantum networking and interconnect subsidiary.

Who is Daniel Brau, the new Chief Quantum Officer of SEALSQ Corp (LAES)?

Daniel Brau, 58, is a technology executive with over two decades of experience in photonics and quantum technologies. He founded Miraex SA and served as its CEO from September 2022 to August 2026 before joining SEALSQ as Chief Quantum Officer.

What are the responsibilities of the Chief Quantum Officer at SEALSQ Corp (LAES)?

As Chief Quantum Officer, Daniel Brau oversees commercialization and integration of SEALSQ’s quantum technology portfolio, develops strategic partnerships, and drives synergies across the SEALQuantum ecosystem, including quantum networking and interconnect activities.

How is Miraex SA positioned within SEALSQ Corp (LAES) after the acquisition?

Miraex SA now serves as SEALSQ’s quantum networking and interconnect subsidiary within the SEALQuantum Sovereign Vertical Stack, focusing on advanced photonic and quantum interconnect technologies for computing, networking, and sensing applications.

How is this SEALSQ Corp (LAES) 6-K incorporated into existing registration statements?

The information is incorporated by reference into SEALSQ’s Form F-3 registration statement (File No. 333-290963) and Form S-8 registration statement (File No. 333-287139), including the related base prospectus and any prospectus supplements.

What prior roles did SEALSQ Corp (LAES) Chief Quantum Officer Daniel Brau hold?

Before SEALSQ, Brau was CEO of Miraex from September 2022 to August 2026 and Managing Director at the Tibidabo Group for four years, leading a unit focused on dual-use imaging for scientific and defense industries.

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Accepted by SEC EDGAR 08/10/2026 - 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

On August 4, 2026, SEALSQ Corp (the “Company” or “SEALSQ”) announced the appointment of Daniel Brau as the Company’s Chief Quantum Officer (“CQO”). Mr. Brau joined SEALSQ following the Company’s acquisition of Miraex SA, the Swiss photonics-based quantum interconnect company he founded. Miraex now serves as SEALSQ’s quantum networking and interconnect subsidiary within the SEALQuantum Sovereign Vertical Stack.

Biographical Information:

Daniel Brau, 58, has served as Chief Quantum Officer of SEALSQ since August 4, 2026. He is a technology executive and entrepreneur with more than two decades of experience in photonics, quantum technologies, and deep-tech commercialization. Prior to joining SEALSQ, Mr. Brau served as Chief Executive Officer of Miraex from September 2022 to August 2026, where he led the development of advanced photonic and quantum interconnect technologies for next-generation quantum computing, networking, and sensing applications. Prior to Miraex, Mr. Brau served as Managing Director at the Tibidabo Group for four years, where he led a business unit focused on dual-use imaging applications for scientific and defense industries. Throughout his career, Mr. Brau held executive roles spanning technology development, industrial partnerships, commercialization, and corporate strategy across the photonics, quantum technologies, semiconductors, and advanced communications sectors.

As Chief Quantum Officer, Mr. Brau is responsible for overseeing the commercialization and integration of the Company's quantum technology portfolio, developing strategic partnerships, and driving synergies across the SEALQuantum ecosystem.

Mr. Brau holds a Master's degree in material science with a focus on thin film technology from Université Paris Sud and an Executive MBA from EM Lyon.

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 10, 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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