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Horizon Quantum Holdings Ltd. files its annual Form 20-F, detailing completion of its SPAC business combination with dMY Squared Technology Group and listing of Class A ordinary shares and warrants on Nasdaq. Horizon develops quantum software tools that depend on third‑party quantum hardware.
The filing explains that Horizon paid $508,384,000 in all‑share Merger Consideration and closed a PIPE Private Placement of $110,412,500 (9,196,020 Class A shares at $11.82), generating roughly $120 million of gross proceeds together with SPAC trust funds. As of March 19, 2026, 51,578,134 Company Ordinary Shares and 6,044,154 Company Warrants were outstanding.
Horizon reports it is early stage, with net losses of S$23.1 million in 2025 and S$7.5 million in 2024 and an accumulated deficit of S$44.5 million, and has not generated material product revenue. Research and development expenses were 48.5% and 44.0% of operating losses in 2025 and 2024. The company warns it will require significant cash, may need additional financing, and faces extensive risks around technology development, market adoption of quantum computing, competition, reliance on hardware and cloud partners, supply chains, talent retention and cybersecurity.
The report also notes a waiver from the Singapore Securities Industry Council exempting Horizon from most provisions of the Singapore Take‑Over Code, except in certain tender offers relying on the U.S. Tier 1 exemption.
Horizon Quantum Holdings Ltd. files its annual Form 20-F, detailing completion of its SPAC business combination with dMY Squared Technology Group and listing of Class A ordinary shares and warrants on Nasdaq. Horizon develops quantum software tools that depend on third‑party quantum hardware.
The filing explains that Horizon paid $508,384,000 in all‑share Merger Consideration and closed a PIPE Private Placement of $110,412,500 (9,196,020 Class A shares at $11.82), generating roughly $120 million of gross proceeds together with SPAC trust funds. As of March 19, 2026, 51,578,134 Company Ordinary Shares and 6,044,154 Company Warrants were outstanding.
Horizon reports it is early stage, with net losses of S$23.1 million in 2025 and S$7.5 million in 2024 and an accumulated deficit of S$44.5 million, and has not generated material product revenue. Research and development expenses were 48.5% and 44.0% of operating losses in 2025 and 2024. The company warns it will require significant cash, may need additional financing, and faces extensive risks around technology development, market adoption of quantum computing, competition, reliance on hardware and cloud partners, supply chains, talent retention and cybersecurity.
The report also notes a waiver from the Singapore Securities Industry Council exempting Horizon from most provisions of the Singapore Take‑Over Code, except in certain tender offers relying on the U.S. Tier 1 exemption.
Horizon Quantum Holdings Ltd. filed a report describing a new strategic agreement with IonQ, under which Horizon Quantum will acquire one of IonQ’s first 6th-generation, chip-based 256-qubit trapped-ion quantum systems. This system is designed with microwave gate operations, 99.99% gate fidelity, and all-to-all connectivity to support more complex and accurate quantum computations.
Horizon Quantum plans to integrate the IonQ trapped-ion system into its Triple Alpha software platform, extending its hardware testbed beyond an initial superconducting system to a second, distinct hardware modality. The company aims to build a hardware-agnostic environment for quantum software development, enabling advanced capabilities such as general control flow, dynamic memory allocation, and concurrent classical/quantum function evaluation in adaptive quantum programs.
Horizon Quantum Holdings Ltd. filed a report describing a new strategic agreement with IonQ, under which Horizon Quantum will acquire one of IonQ’s first 6th-generation, chip-based 256-qubit trapped-ion quantum systems. This system is designed with microwave gate operations, 99.99% gate fidelity, and all-to-all connectivity to support more complex and accurate quantum computations.
Horizon Quantum plans to integrate the IonQ trapped-ion system into its Triple Alpha software platform, extending its hardware testbed beyond an initial superconducting system to a second, distinct hardware modality. The company aims to build a hardware-agnostic environment for quantum software development, enabling advanced capabilities such as general control flow, dynamic memory allocation, and concurrent classical/quantum function evaluation in adaptive quantum programs.
Horizon Quantum Holdings Ltd. director Jill Ann Turner filed an initial Form 3, which is a required disclosure of insider holdings. This filing does not report any buy or sell transactions, derivative exercises, gifts, or other changes in ownership, and shows no reportable holdings at this time.
Horizon Quantum Holdings Ltd. director Jill Ann Turner filed an initial Form 3, which is a required disclosure of insider holdings. This filing does not report any buy or sell transactions, derivative exercises, gifts, or other changes in ownership, and shows no reportable holdings at this time.
IonQ, Inc. filed a Schedule 13D reporting beneficial ownership of 4,230,118 Class A Ordinary Shares of Horizon Quantum Holdings Ltd., representing 13.3% of the class based on 31,833,549 shares outstanding as of March 20, 2026.
IonQ bought the shares for investment using cash on hand under a December 4, 2025 Subscription Agreement and Side Letter tied to Horizon’s De-SPAC transaction completed on March 19, 2026. IonQ holds sole voting and dispositive power over these shares and has rights to demand registration, designate a board member, and receive a right of first notification on certain transactions, and may consider additional strategic or transactional steps over time.
IonQ, Inc. filed a Schedule 13D reporting beneficial ownership of 4,230,118 Class A Ordinary Shares of Horizon Quantum Holdings Ltd., representing 13.3% of the class based on 31,833,549 shares outstanding as of March 20, 2026.
IonQ bought the shares for investment using cash on hand under a December 4, 2025 Subscription Agreement and Side Letter tied to Horizon’s De-SPAC transaction completed on March 19, 2026. IonQ holds sole voting and dispositive power over these shares and has rights to demand registration, designate a board member, and receive a right of first notification on certain transactions, and may consider additional strategic or transactional steps over time.
Horizon Quantum Holdings Ltd. shareholder Joseph Francis Fitzsimons reports major ownership and control following the SPAC business combination. He beneficially owns 19,744,585 Class B Ordinary Shares, representing approximately 38.3% of the Ordinary Shares on an as-converted basis and 65.0% of the issuer’s total voting power as of March 19, 2026.
His Horizon shares were converted into Class B Ordinary Shares at closing of the business combination with dMY Squared Technology Group, Inc. These Class B shares are convertible one-for-one into Class A Ordinary Shares but carry three votes per share. Fitzsimons, the company’s CEO and Board Chairman, is subject to a two-year lock-up on these Class B shares and is party to a Registration Rights Agreement covering resales of underlying Class A Ordinary Shares.
Horizon Quantum Holdings Ltd. shareholder Joseph Francis Fitzsimons reports major ownership and control following the SPAC business combination. He beneficially owns 19,744,585 Class B Ordinary Shares, representing approximately 38.3% of the Ordinary Shares on an as-converted basis and 65.0% of the issuer’s total voting power as of March 19, 2026.
His Horizon shares were converted into Class B Ordinary Shares at closing of the business combination with dMY Squared Technology Group, Inc. These Class B shares are convertible one-for-one into Class A Ordinary Shares but carry three votes per share. Fitzsimons, the company’s CEO and Board Chairman, is subject to a two-year lock-up on these Class B shares and is party to a Registration Rights Agreement covering resales of underlying Class A Ordinary Shares.
Horizon Quantum Holdings Ltd. Schedule 13G: Tencent Holdings Limited and affiliate THL A12 Limited reported beneficial ownership of 4,175,570 Class A Ordinary Shares, representing 13.1% of Class A shares outstanding. Shares outstanding were 31,833,549 as of March 19, 2026. Tencent states that THL A12 Limited is a direct wholly-owned subsidiary, and Tencent may be deemed to beneficially own the same 4,175,570 shares. The filing is a joint filing and is signed by Ma Huateng and Gu Tingting Jackie on March 25, 2026.