SEALSQ Corp (NASDAQ: LAES) ends Quobly majority bid, considers minority investment

Rhea-AI Filing Summary

SEALSQ Corp filed a Form 6-K noting that it and Quobly have mutually agreed to halt discussions about a potential majority investment or acquisition of Quobly by SEALSQ. Instead, the parties plan to explore a possible minority investment once Quobly launches its Series A financing round.

The decision is presented as a shared preference for a structure that aligns better with the current pace of quantum computing investments in France. SEALSQ and Quobly will continue their existing technical and industrial collaboration, particularly focused on combining secure semiconductor technologies with scalable quantum architectures.

Insights

Cross-border M&A and strategic partnerships analyst

SEALSQ shifts from potential takeover of Quobly to exploring a future minority stake.

The update indicates that SEALSQ and Quobly have stopped talks on a majority investment or acquisition and now anticipate discussing a minority investment linked to Quobly’s planned Series A round. This reframes the relationship from control-focused to partnership-focused equity participation.

The rationale given is alignment with the current pace of quantum computing investments in France, suggesting sensitivity to local funding dynamics and perhaps valuation or control considerations. The parties emphasize continuity of their existing technical and industrial collaboration around secure semiconductors and quantum architectures.

Future developments will depend on the terms of any minority investment tied to Quobly’s Series A and how the ongoing collaboration progresses in quantum-resistant and quantum-enabling technologies. Subsequent company reports may provide more detail on any formalized equity investment and its strategic weight.

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 February 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

Exhibit
No.	Description
99.1	Press Release of SEALSQ Corp issued on February 20, 2026

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: February 23, 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

SEALSQ and Quobly Mutually Agree to Halt Discussions Regarding a Potential Majority Investment or Acquisition by SEALSQ

Geneva, Switzerland, February 20, 2026 -- SEALSQ Corp (NASDAQ: LAES) ("SEALSQ" or "Company"), a company that focuses on developing and selling Semiconductors, PKI, and Post-Quantum technology hardware and software products, and Quobly, today announced that they have mutually agreed to halt discussions regarding a potential majority investment or acquisition of Quobly by SEALSQ.

The parties will instead explore the possibility of a minority investment, to be discussed once Quobly launches its Series A financing round.

This decision reflects a shared preference for a minority investment structure that is more compatible with the current pace of quantum computing investments in France.

The companies will continue their technical and industrial collaboration announced in Nov. 2025 https://www.sealsq.com/investors/news-releases/sealsq-and-quobly-announce-collaboration-to-advance-secure-and-

scalable-quantum-technologies, particularly around the convergence of secure semiconductor technologies and scalable quantum architectures.

About SEALSQ:

SEALSQ is a leading innovator in Post-Quantum Technology hardware and software solutions. Our technology seamlessly integrates Semiconductors, PKI (Public Key Infrastructure), and Provisioning Services, with a strategic emphasis on developing state-of-the-art Quantum Resistant Cryptography and Semiconductors designed to address the urgent security challenges posed by quantum computing. As quantum computers advance, traditional cryptographic methods like RSA and Elliptic Curve Cryptography (ECC) are increasingly vulnerable.

SEALSQ is pioneering the development of Post-Quantum Semiconductors that provide robust, future-proof protection for sensitive data across a wide range of applications, including Multi-Factor Authentication tokens, Smart Energy, Medical and Healthcare Systems, Defense, IT Network Infrastructure, Automotive, and Industrial Automation and Control Systems. By embedding Post-Quantum Cryptography into our semiconductor solutions, SEALSQ ensures that organizations stay protected against quantum threats. Our products are engineered to safeguard critical systems, enhancing resilience and security across diverse industries.

For more information on our Post-Quantum Semiconductors and security solutions, please visit www.sealsq.com.

Forward-Looking Statements

This communication expressly or implicitly contains certain forward-looking statements concerning SEALSQ Corp and its businesses. Forward-looking statements include statements regarding our business strategy, financial performance, results of operations, completion of contemplated minority investments, market data, events or developments that we expect or anticipate will occur in the future, as well as any other statements which are not historical facts. Although we believe that the expectations reflected in such forward-looking statements are reasonable, no assurance can be given that such expectations will prove to have been correct. These statements involve known and unknown risks and are based upon a number of assumptions and estimates which are inherently subject to significant uncertainties and contingencies, many of which are beyond our control. Actual results may differ materially from those expressed or implied by such forward-looking statements. Important factors that, in our view, could cause actual results to differ materially from those discussed in the forward-looking statements include SEALSQ's ability to continue beneficial transactions with material parties, including a limited number of significant customers; market demand and semiconductor industry conditions; and the risks discussed in SEALSQ's filings with the SEC. Risks and uncertainties are further described in reports filed by SEALSQ with the SEC.

SEALSQ Corp is providing this communication as of this date and does not undertake to update any forward-looking statements contained herein as a result of new information, future events or otherwise.

SEALSQ Corp.
Carlos Moreira
Chairman & CEO
Tel: +41 22 594 3000
info@sealsq.com SEALSQ Investor Relations (US)
The Equity Group Inc.
Lena Cati
Tel: +1 212 836-9611 lcati@theequitygroup.com

FAQ

What did SEALSQ Corp (LAES) announce regarding its potential acquisition of Quobly?

SEALSQ and Quobly announced they have mutually agreed to halt discussions about a potential majority investment or acquisition of Quobly by SEALSQ. Instead, they plan to explore a minority investment structure linked to Quobly’s upcoming Series A financing round.

Will SEALSQ Corp (LAES) still invest in Quobly after halting majority acquisition talks?

SEALSQ and Quobly plan to explore a possible minority investment, to be discussed once Quobly launches its Series A financing round. This shifts focus from a control transaction to a smaller equity stake, while maintaining their broader strategic relationship.

Why did SEALSQ and Quobly favor a minority investment instead of a majority deal?

The companies state that a minority investment structure better matches the current pace of quantum computing investments in France. This suggests they see a smaller stake as more compatible with local market dynamics, funding trends, and how quantum ventures are typically financed there.

Are SEALSQ Corp (LAES) and Quobly continuing their technical collaboration?

Yes. SEALSQ and Quobly intend to continue their previously announced technical and industrial collaboration. This work focuses on combining secure semiconductor technologies with scalable quantum architectures to advance secure and scalable quantum-related solutions across various applications and industries.

What areas of technology do SEALSQ and Quobly focus on together?

Their collaboration concentrates on the convergence of secure semiconductor technologies and scalable quantum architectures. SEALSQ contributes expertise in post-quantum semiconductors and cryptography, while the partnership aims to support secure quantum computing developments for critical applications and infrastructure.

What does SEALSQ Corp (LAES) specialize in within post-quantum technology?

SEALSQ focuses on post-quantum technology hardware and software, integrating semiconductors, Public Key Infrastructure, and provisioning services. It develops quantum-resistant cryptography and semiconductors designed to protect sensitive data as quantum computing advances and challenges traditional encryption methods like RSA and ECC.

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