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Horizon Quantum Holdings Ltd. registers 6,044,160 Company Class A Shares issuable upon exercise of Company Warrants and registers for resale up to 52,966,280 Company Class A Shares and 2,884,660 Company Private Warrants to satisfy registration rights held by selling securityholders. The prospectus permits those selling securityholders to sell their Registered Securities from time to time at prevailing market or negotiated prices through various distribution methods described under the Plan of Distribution.
The Company will not receive proceeds from sales by the selling securityholders but would receive up to $69,507,840 if all 6,044,160 Company Warrants are exercised for cash at an exercise price of $11.50 per warrant. The filing discloses 51,578,134 Company Shares and 6,044,160 Company Warrants outstanding as of the Closing, lock-up arrangements, a 91.92% post-exercise ownership figure cited as of April 21, 2026, and material agreements including a $35,000,000 initial statement of work with IonQ.
Horizon Quantum Holdings Ltd. is registering up to 52,966,280 Company Class A Shares for resale, together with 6,044,160 Company Class A Shares issuable upon exercise of warrants and 2,884,660 Company Private Warrants. The registration enables certain selling securityholders to resell these Registered Securities from time to time. The prospectus states the Company will receive proceeds only if Company Warrants are exercised for cash at an exercise price of $11.50 per share; based on a Nasdaq closing price of $10.38 on April 14, 2026, the company believes warrant exercises are unlikely. The filing also summarizes the March 19, 2026 business combination that issued $508,384,000 in merger consideration and discloses a strategic systems agreement with IonQ with initial consideration of $35,000,000.
Horizon Quantum Holdings Ltd., through its subsidiary Horizon Quantum Computing, has entered a strategic collaboration with AQT (Alpine Quantum Technologies) to advance real-world quantum applications by tightly integrating software and hardware.
The partnership connects Horizon’s Triple Alpha integrated development environment with AQT’s trapped-ion quantum processors, a modality highlighted for high gate fidelity, low error rates, and long coherence times. Developers will be able to write, compile, and deploy quantum programs directly to AQT’s systems via the cloud, at multiple levels of abstraction, whether or not they have deep hardware expertise.
The companies plan to work jointly with customers, aiming for technical milestones in quantum computing and software development. Horizon frames this as a step toward its goal of building hardware-agnostic software infrastructure and broadening the range of quantum hardware supported in Triple Alpha, following its recent Nasdaq listing under ticker HQ.
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. 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.
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. reported an indirect insider purchase linked to its business combination closing. On March 19, 2026, Penchant Family Holdings LLC acquired 84,602 Class A Ordinary Shares at $11.82 per share, for an aggregate price of approximately $1,000,000. The shares are held by Penchant Family Holdings LLC, which is controlled by Penchant Holdings, Inc., where director Danielle Lambert serves as President, so her interest is through this affiliated entity rather than direct personal ownership.