StreetInsider.com News Articles

Quantisimo to go public via SPAC merger, targeting Nasdaq listing

Fri, 09 Oct 2026 01:00:20 -0400

Quantisimo Corp., a quantum technology vehicle established by WISeQey Corp. (Nasdaq/SIX: WQEY) and its subsidiary SEALSQ Corp. (Nasdaq: LAES), has signed a definitive business combination agreement with special purpose acquisition company GigCapital8 Corp. (Nasdaq: GIW) to become a publicly listed company.

Under the agreement, Quantisimo and GigCapital8 would become wholly owned subsidiaries of a newly formed British Virgin Islands holding company, Quantisimo Holding Corp., whose ordinary shares are expected to list on the Nasdaq Capital Market under the ticker symbol "QSMO." The transaction is expected to close in the first quarter of 2027, subject to GigCapital8 shareholder approval and other customary

Quantisimo to go public via SPAC merger, targeting Nasdaq listing

Fri, 09 Oct 2026 01:00:20 -0400

Quantisimo to go public via SPAC merger, targeting Nasdaq listing

Fri, 09 Oct 2026 01:00:20 -0400

Quantisimo Corp., the Pure-Play Sovereign Quantum Vertical Platform “Root to Qubit” Formed by WISeQey and SEALSQ, Signs Definitive Business Combination Agreement with GigCapital8 Corp. to Become a

Fri, 09 Oct 2026 01:00:00 -0400

Quantisimo Corp. (“Quantisimo”), established by WISeQey Corp (Nasdaq/SIX: WQEY) (“WISeQey”), a global quantum cybersecurity and space IoT company, and its subsidiary, SEALSQ Corp (Nasdaq: LAES) (“SEALSQ”), a developer of secure semiconductors, public key infrastructure (PKI) and post-quantum security products, is being developed as a pure-play sovereign quantum vertical platform under the vision “Root to Qubit.” Through the proposed contribution of interests in Miraex SA, SEALCOIN AG,

Quantisimo Corp., the Pure-Play Sovereign Quantum Vertical Platform “Root to Qubit” Formed by WISeQey and SEALSQ, Signs Definitive Business Combination Agreement with GigCapital8 Corp. to Become a

Fri, 09 Oct 2026 01:00:00 -0400

Quantisimo Corp., the Pure-Play Sovereign Quantum Vertical Platform “Root to Qubit” Formed by WISeQey and SEALSQ, Signs Definitive Business Combination Agreement with GigCapital8 Corp. to Become a Nasdaq-Listed Public Company

Quantisimo Corp. (“Quantisimo”), established by WISeQey Corp (Nasdaq/SIX: WQEY) (“WISeQey”), a global quantum cybersecurity and space IoT company, and its subsidiary, SEALSQ Corp (Nasdaq: LAES) (“SEALSQ”), a developer of secure semiconductors, public key infrastructure (PKI) and post-quantum security products, is being developed as a pure-play sovereign quantum vertical platform under the vision “Root to Qubit.” Through the proposed contribution of interests in Miraex SA, SEALCOIN AG,

Quantisimo Corp., the Pure-Play Sovereign Quantum Vertical Platform “Root to Qubit” Formed by WISeQey and SEALSQ, Signs Definitive Business Combination Agreement with GigCapital8 Corp. to Become a

Fri, 09 Oct 2026 01:00:00 -0400

Quantisimo Corp., the Pure-Play Sovereign Quantum Vertical Platform “Root to Qubit” Formed by WISeQey and SEALSQ, Signs Definitive Business Combination Agreement with GigCapital8 Corp. to Become a Nasdaq-Listed Public Company

Quantisimo Corp. (“Quantisimo”), established by WISeQey Corp (Nasdaq/SIX: WQEY) (“WISeQey”), a global quantum cybersecurity and space IoT company, and its subsidiary, SEALSQ Corp (Nasdaq: LAES) (“SEALSQ”), a developer of secure semiconductors, public key infrastructure (PKI) and post-quantum security products, is being developed as a pure-play sovereign quantum vertical platform under the vision “Root to Qubit.” Through the proposed contribution of interests in Miraex SA, SEALCOIN AG,

Quantisimo Corp., the Pure-Play Sovereign Quantum Vertical Platform “Root to Qubit” Formed by WISeQey and SEALSQ, Signs Definitive Business Combination Agreement with GigCapital8 Corp. to Become a

Fri, 09 Oct 2026 01:00:00 -0400

Quantisimo Corp., the Pure-Play Sovereign Quantum Vertical Platform “Root to Qubit” Formed by WISeQey and SEALSQ, Signs Definitive Business Combination Agreement with GigCapital8 Corp. to Become a Nasdaq-Listed Public Company

Quantisimo Corp. (“Quantisimo”), established by WISeQey Corp (Nasdaq/SIX: WQEY) (“WISeQey”), a global quantum cybersecurity and space IoT company, and its subsidiary, SEALSQ Corp (Nasdaq: LAES) (“SEALSQ”), a developer of secure semiconductors, public key infrastructure (PKI) and post-quantum security products, is being developed as a pure-play sovereign quantum vertical platform under the vision “Root to Qubit.” Through the proposed contribution of interests in Miraex SA, SEALCOIN AG,

Quantisimo Corp., the Pure-Play Sovereign Quantum Vertical Platform “Root to Qubit” Formed by WISeQey and SEALSQ, Signs Definitive Business Combination Agreement with GigCapital8 Corp. to Become a

Fri, 09 Oct 2026 01:00:00 -0400

Quantisimo Corp., the Pure-Play Sovereign Quantum Vertical Platform “Root to Qubit” Formed by WISeQey and SEALSQ, Signs Definitive Business Combination Agreement with GigCapital8 Corp. to Become a Nasdaq-Listed Public Company

Quantisimo Corp. (“Quantisimo”), established by WISeQey Corp (Nasdaq/SIX: WQEY) (“WISeQey”), a global quantum cybersecurity and space IoT company, and its subsidiary, SEALSQ Corp (Nasdaq: LAES) (“SEALSQ”), a developer of secure semiconductors, public key infrastructure (PKI) and post-quantum security products, is being developed as a pure-play sovereign quantum vertical platform under the vision “Root to Qubit.” Through the proposed contribution of interests in Miraex SA, SEALCOIN AG,

Quantisimo Corp., the Pure-Play Sovereign Quantum Vertical Platform “Root to Qubit” Formed by WISeQey and SEALSQ, Signs Definitive Business Combination Agreement with GigCapital8 Corp. to Become a

Fri, 09 Oct 2026 01:00:00 -0400

Quantisimo Corp., the Pure-Play Sovereign Quantum Vertical Platform “Root to Qubit” Formed by WISeQey and SEALSQ, Signs Definitive Business Combination Agreement with GigCapital8 Corp. to Become a Nasdaq-Listed Public Company

Quantisimo Corp. (“Quantisimo”), established by WISeQey Corp (Nasdaq/SIX: WQEY) (“WISeQey”), a global quantum cybersecurity and space IoT company, and its subsidiary, SEALSQ Corp (Nasdaq: LAES) (“SEALSQ”), a developer of secure semiconductors, public key infrastructure (PKI) and post-quantum security products, is being developed as a pure-play sovereign quantum vertical platform under the vision “Root to Qubit.” Through the proposed contribution of interests in Miraex SA, SEALCOIN AG,

SEALSQ and WISeKey form Quantisimo, sign SPAC merger letter of intent

Thu, 25 Jun 2026 03:25:23 -0400

SEALSQ Corp. (Nasdaq: LAES) and its parent WISeKey International Holding Ltd. (Nasdaq: WKEY) announced the formation of Quantisimo Corp., a special purpose vehicle, which has signed a non-binding letter of intent with GigCapital8 Corp. (Nasdaq: GIW), a special purpose acquisition company, to pursue a business combination.
The proposed transaction would create a Nasdaq-listed quantum technology platform with an initial pre-money enterprise value of approximately $575 million, subject to customary closing conditions. The parties stated their intention to grow that valuation to $2 billion through acquisitions of up to five additional quantum technology companies. The transaction is expected to close in the

SEALSQ and WISeKey form Quantisimo, sign SPAC merger letter of intent

Thu, 25 Jun 2026 03:25:23 -0400

SEALSQ Corp. (Nasdaq: LAES) and its parent WISeKey International Holding Ltd. (Nasdaq: WKEY) announced the formation of Quantisimo Corp., a special purpose vehicle, which has signed a non-binding letter of intent with GigCapital8 Corp. (Nasdaq: GIW), a special purpose acquisition company, to pursue a business combination.
The proposed transaction would create a Nasdaq-listed quantum technology platform with an initial pre-money enterprise value of approximately $575 million, subject to customary closing conditions. The parties stated their intention to grow that valuation to $2 billion through acquisitions of up to five additional quantum technology companies. The transaction is expected to close in the

SEALSQ and WISeKey form Quantisimo, sign SPAC merger letter of intent

Thu, 25 Jun 2026 03:25:23 -0400

SEALSQ Corp. (Nasdaq: LAES) and its parent WISeKey International Holding Ltd. (Nasdaq: WKEY) announced the formation of Quantisimo Corp., a special purpose vehicle, which has signed a non-binding letter of intent with GigCapital8 Corp. (Nasdaq: GIW), a special purpose acquisition company, to pursue a business combination.
The proposed transaction would create a Nasdaq-listed quantum technology platform with an initial pre-money enterprise value of approximately $575 million, subject to customary closing conditions. The parties stated their intention to grow that valuation to $2 billion through acquisitions of up to five additional quantum technology companies. The transaction is expected to close in the

WISeKey and SEALSQ Establish Quantisimo Corp. as a Special Purpose Vehicle, and Execute Letter of Intent with GigCapital8 Corp.

Thu, 25 Jun 2026 01:30:00 -0400

Proposed Strategic Business Public company at $575 Million Initial Enterprise Value with Significant Long Term Growth Potential Through Strategic Acquisitions
Proposed Transaction Intended to Create a Consolidated $2 Billion Trusted Quantum Pure-Play Platform Following Additional Acquisitions

GENEVA & PALO ALTO, Calif.--(BUSINESS WIRE)-- WISeKey International Holding Ltd. (“WISeKey”) (SIX: WIHN; Nasdaq: WKEY), a global leader in cybersecurity and trusted digital ecosystems, and its subsidiary SEALSQ Corp. (Nasdaq: LAES), a leading developer of semiconductors, PKI, and post-quantum technologies, today announced that their jointly established special purpose vehicle, Quantisimo Corp. (“Quantisimo”), has entered into a non-binding Letter of Intent (“LOI”)

WISeKey and SEALSQ Establish Quantisimo Corp. as a Special Purpose Vehicle, and Execute Letter of Intent with GigCapital8 Corp.

Thu, 25 Jun 2026 01:30:00 -0400

Proposed Strategic Business Public company at $575 Million Initial Enterprise Value with Significant Long Term Growth Potential Through Strategic Acquisitions
Proposed Transaction Intended to Create a Consolidated $2 Billion Trusted Quantum Pure-Play Platform Following Additional Acquisitions

GENEVA & PALO ALTO, Calif.--(BUSINESS WIRE)-- WISeKey International Holding Ltd. (“WISeKey”) (SIX: WIHN; Nasdaq: WKEY), a global leader in cybersecurity and trusted digital ecosystems, and its subsidiary SEALSQ Corp. (Nasdaq: LAES), a leading developer of semiconductors, PKI, and post-quantum technologies, today announced that their jointly established special purpose vehicle, Quantisimo Corp. (“Quantisimo”), has entered into a non-binding Letter of Intent (“LOI”)

WISeKey and SEALSQ Establish Quantisimo Corp. as a Special Purpose Vehicle, and Execute Letter of Intent with GigCapital8 Corp.

Thu, 25 Jun 2026 01:30:00 -0400

Proposed Strategic Business Public company at $575 Million Initial Enterprise Value with Significant Long Term Growth Potential Through Strategic Acquisitions
Proposed Transaction Intended to Create a Consolidated $2 Billion Trusted Quantum Pure-Play Platform Following Additional Acquisitions

GENEVA & PALO ALTO, Calif.--(BUSINESS WIRE)-- WISeKey International Holding Ltd. (“WISeKey”) (SIX: WIHN; Nasdaq: WKEY), a global leader in cybersecurity and trusted digital ecosystems, and its subsidiary SEALSQ Corp. (Nasdaq: LAES), a leading developer of semiconductors, PKI, and post-quantum technologies, today announced that their jointly established special purpose vehicle, Quantisimo Corp. (“Quantisimo”), has entered into a non-binding Letter of Intent (“LOI”)

WISeKey and SEALSQ Establish Quantisimo Corp. as a Special Purpose Vehicle, and Execute Letter of Intent with GigCapital8 Corp.

Thu, 25 Jun 2026 01:30:00 -0400

Proposed Strategic Business Public company at $575 Million Initial Enterprise Value with Significant Long Term Growth Potential Through Strategic Acquisitions
Proposed Transaction Intended to Create a Consolidated $2 Billion Trusted Quantum Pure-Play Platform Following Additional Acquisitions

GENEVA & PALO ALTO, Calif.--(BUSINESS WIRE)-- WISeKey International Holding Ltd. (“WISeKey”) (SIX: WIHN; Nasdaq: WKEY), a global leader in cybersecurity and trusted digital ecosystems, and its subsidiary SEALSQ Corp. (Nasdaq: LAES), a leading developer of semiconductors, PKI, and post-quantum technologies, today announced that their jointly established special purpose vehicle, Quantisimo Corp. (“Quantisimo”), has entered into a non-binding Letter of Intent (“LOI”)

WISeKey and SEALSQ Establish Quantisimo Corp. as a Special Purpose Vehicle, and Execute Letter of Intent with GigCapital8 Corp.

Thu, 25 Jun 2026 01:30:00 -0400

Proposed Strategic Business Public company at $575 Million Initial Enterprise Value with Significant Long Term Growth Potential Through Strategic Acquisitions
Proposed Transaction Intended to Create a Consolidated $2 Billion Trusted Quantum Pure-Play Platform Following Additional Acquisitions

GENEVA & PALO ALTO, Calif.--(BUSINESS WIRE)-- WISeKey International Holding Ltd. (“WISeKey”) (SIX: WIHN; Nasdaq: WKEY), a global leader in cybersecurity and trusted digital ecosystems, and its subsidiary SEALSQ Corp. (Nasdaq: LAES), a leading developer of semiconductors, PKI, and post-quantum technologies, today announced that their jointly established special purpose vehicle, Quantisimo Corp. (“Quantisimo”), has entered into a non-binding Letter of Intent (“LOI”)

WISeKey and SEALSQ Establish Quantisimo Corp. as a Special Purpose Vehicle, and Execute Letter of Intent with GigCapital8 Corp.

Thu, 25 Jun 2026 01:30:00 -0400

Proposed Strategic Business Public company at $575 Million Initial Enterprise Value with Significant Long Term Growth Potential Through Strategic Acquisitions
Proposed Transaction Intended to Create a Consolidated $2 Billion Trusted Quantum Pure-Play Platform Following Additional Acquisitions

GENEVA & PALO ALTO, Calif.--(BUSINESS WIRE)-- WISeKey International Holding Ltd. (“WISeKey”) (SIX: WIHN; Nasdaq: WKEY), a global leader in cybersecurity and trusted digital ecosystems, and its subsidiary SEALSQ Corp. (Nasdaq: LAES), a leading developer of semiconductors, PKI, and post-quantum technologies, today announced that their jointly established special purpose vehicle, Quantisimo Corp. (“Quantisimo”), has entered into a non-binding Letter of Intent (“LOI”)

WISeKey and SEALSQ Establish Quantisimo Corp. as a Special Purpose Vehicle, and Execute Letter of Intent with GigCapital8 Corp.

Thu, 25 Jun 2026 01:30:00 -0400

Proposed Strategic Business Public company at $575 Million Initial Enterprise Value with Significant Long Term Growth Potential Through Strategic Acquisitions
Proposed Transaction Intended to Create a Consolidated $2 Billion Trusted Quantum Pure-Play Platform Following Additional Acquisitions

GENEVA & PALO ALTO, Calif.--(BUSINESS WIRE)-- WISeKey International Holding Ltd. (“WISeKey”) (SIX: WIHN; Nasdaq: WKEY), a global leader in cybersecurity and trusted digital ecosystems, and its subsidiary SEALSQ Corp. (Nasdaq: LAES), a leading developer of semiconductors, PKI, and post-quantum technologies, today announced that their jointly established special purpose vehicle, Quantisimo Corp. (“Quantisimo”), has entered into a non-binding Letter of Intent (“LOI”)

WISeKey and SEALSQ Establish Quantisimo Corp. as a Special Purpose Vehicle, and Execute Letter of Intent with GigCapital8 Corp.

Thu, 25 Jun 2026 01:30:00 -0400

Proposed Strategic Business Public company at $575 Million Initial Enterprise Value with Significant Long Term Growth Potential Through Strategic Acquisitions
Proposed Transaction Intended to Create a Consolidated $2 Billion Trusted Quantum Pure-Play Platform Following Additional Acquisitions

GENEVA & PALO ALTO, Calif.--(BUSINESS WIRE)-- WISeKey International Holding Ltd. (“WISeKey”) (SIX: WIHN; Nasdaq: WKEY), a global leader in cybersecurity and trusted digital ecosystems, and its subsidiary SEALSQ Corp. (Nasdaq: LAES), a leading developer of semiconductors, PKI, and post-quantum technologies, today announced that their jointly established special purpose vehicle, Quantisimo Corp. (“Quantisimo”), has entered into a non-binding Letter of Intent (“LOI”)

WISeKey and SEALSQ Establish Quantisimo Corp. as a Special Purpose Vehicle, and Execute Letter of Intent with GigCapital8 Corp.

Thu, 25 Jun 2026 01:30:00 -0400

Proposed Strategic Business Public company at $575 Million Initial Enterprise Value with Significant Long Term Growth Potential Through Strategic Acquisitions
Proposed Transaction Intended to Create a Consolidated $2 Billion Trusted Quantum Pure-Play Platform Following Additional Acquisitions

GENEVA & PALO ALTO, Calif.--(BUSINESS WIRE)-- WISeKey International Holding Ltd. (“WISeKey”) (SIX: WIHN; Nasdaq: WKEY), a global leader in cybersecurity and trusted digital ecosystems, and its subsidiary SEALSQ Corp. (Nasdaq: LAES), a leading developer of semiconductors, PKI, and post-quantum technologies, today announced that their jointly established special purpose vehicle, Quantisimo Corp. (“Quantisimo”), has entered into a non-binding Letter of Intent (“LOI”)

WISeKey and SEALSQ Establish Quantisimo Corp. as a Special Purpose Vehicle, and Execute Letter of Intent with GigCapital8 Corp.

Thu, 25 Jun 2026 01:30:00 -0400

Proposed Strategic Business Public company at $575 Million Initial Enterprise Value with Significant Long Term Growth Potential Through Strategic Acquisitions
Proposed Transaction Intended to Create a Consolidated $2 Billion Trusted Quantum Pure-Play Platform Following Additional Acquisitions

GENEVA & PALO ALTO, Calif.--(BUSINESS WIRE)-- WISeKey International Holding Ltd. (“WISeKey”) (SIX: WIHN; Nasdaq: WKEY), a global leader in cybersecurity and trusted digital ecosystems, and its subsidiary SEALSQ Corp. (Nasdaq: LAES), a leading developer of semiconductors, PKI, and post-quantum technologies, today announced that their jointly established special purpose vehicle, Quantisimo Corp. (“Quantisimo”), has entered into a non-binding Letter of Intent (“LOI”)

WISeKey and SEALSQ Establish Quantisimo Corp. as a Special Purpose Vehicle, and Execute Letter of Intent with GigCapital8 Corp.

Thu, 25 Jun 2026 01:30:00 -0400

Proposed Strategic Business Public company at $575 Million Initial Enterprise Value with Significant Long Term Growth Potential Through Strategic Acquisitions
Proposed Transaction Intended to Create a Consolidated $2 Billion Trusted Quantum Pure-Play Platform Following Additional Acquisitions

GENEVA & PALO ALTO, Calif.--(BUSINESS WIRE)-- WISeKey International Holding Ltd. (“WISeKey”) (SIX: WIHN; Nasdaq: WKEY), a global leader in cybersecurity and trusted digital ecosystems, and its subsidiary SEALSQ Corp. (Nasdaq: LAES), a leading developer of semiconductors, PKI, and post-quantum technologies, today announced that their jointly established special purpose vehicle, Quantisimo Corp. (“Quantisimo”), has entered into a non-binding Letter of Intent (“LOI”)

WISeKey and SEALSQ Establish Quantisimo Corp. as a Special Purpose Vehicle, and Execute Letter of Intent with GigCapital8 Corp.

Thu, 25 Jun 2026 01:30:00 -0400

Proposed Strategic Business Public company at $575 Million Initial Enterprise Value with Significant Long Term Growth Potential Through Strategic Acquisitions
Proposed Transaction Intended to Create a Consolidated $2 Billion Trusted Quantum Pure-Play Platform Following Additional Acquisitions

GENEVA & PALO ALTO, Calif.--(BUSINESS WIRE)-- WISeKey International Holding Ltd. (“WISeKey”) (SIX: WIHN; Nasdaq: WKEY), a global leader in cybersecurity and trusted digital ecosystems, and its subsidiary SEALSQ Corp. (Nasdaq: LAES), a leading developer of semiconductors, PKI, and post-quantum technologies, today announced that their jointly established special purpose vehicle, Quantisimo Corp. (“Quantisimo”), has entered into a non-binding Letter of Intent (“LOI”)

WISeKey and SEALSQ Establish Quantisimo Corp. as a Special Purpose Vehicle, and Execute Letter of Intent with GigCapital8 Corp.

Thu, 25 Jun 2026 01:30:00 -0400

Proposed Strategic Business Public company at $575 Million Initial Enterprise Value with Significant Long Term Growth Potential Through Strategic Acquisitions
Proposed Transaction Intended to Create a Consolidated $2 Billion Trusted Quantum Pure-Play Platform Following Additional Acquisitions

GENEVA & PALO ALTO, Calif.--(BUSINESS WIRE)-- WISeKey International Holding Ltd. (“WISeKey”) (SIX: WIHN; Nasdaq: WKEY), a global leader in cybersecurity and trusted digital ecosystems, and its subsidiary SEALSQ Corp. (Nasdaq: LAES), a leading developer of semiconductors, PKI, and post-quantum technologies, today announced that their jointly established special purpose vehicle, Quantisimo Corp. (“Quantisimo”), has entered into a non-binding Letter of Intent (“LOI”)