Hadron Energy Completes Nasdaq Listing Following GigCapital7 Merger, Secures Approximately $31 Million to Advance Halo Microreactor Development
Hadron Energy has officially completed its previously announced business combination with GigCapital7 Corp., marking a major milestone for the emerging nuclear technology developer as it begins trading on the Nasdaq Stock Market under the ticker symbols “HDRN” and “HDRNW.” The transaction positions Hadron Energy as the first publicly traded company focused specifically on light-water micro-modular nuclear reactors (MMRs), a segment that is gaining increasing attention as governments and industries search for reliable carbon-free energy solutions.
The completion of the transaction also delivers a significant capital infusion to support the company’s commercialization plans. Hadron Energy announced that the merger generated approximately $31 million in combined cash proceeds while leaving the company debt-free at closing. Company executives said the financing will provide the operational runway necessary to continue advancing the Halo Micro-Modular Reactor through engineering, regulatory, and deployment milestones over the coming year.
The Halo MMR is being developed as a 10 megawatt electric (MWe) transportable light-water nuclear reactor designed for continuous baseload power generation. The reactor is intended to be manufactured centrally in factories and then transported to customer locations using commercial transportation systems. According to the company, the system is engineered for a 10-year refueling cycle, reducing the need for frequent onsite nuclear fuel handling and enabling deployment in remote or mission-critical environments.
Hadron Energy believes its technology could play an important role in supporting growing electricity demand from industrial operations, defense infrastructure, data centers, and other high-energy-use facilities seeking stable, low-carbon power sources. The company’s approach is centered on adapting light-water reactor technology, which has been commercially used in the nuclear industry for decades, into a smaller modular configuration that can be deployed more rapidly and at lower upfront infrastructure costs than conventional large-scale nuclear plants.
The business combination with GigCapital7 represents the seventh private-to-public-equity transaction completed by the GigCapital Global franchise since 2017. The transaction structure was designed to provide Hadron Energy with long-term operational flexibility while minimizing transaction-related financial burdens commonly associated with SPAC mergers.
At the time of closing, approximately $28 million remained in the GigCapital7 trust account and was transferred directly to Hadron Energy’s balance sheet. The retained cash significantly exceeded the $20 million minimum cash requirement established under the business combination agreement signed during the third quarter of 2025.
In addition to the trust proceeds, Hadron Energy and GigCapital7 secured approximately $7.5 million in equity bridge financing through SAFE agreements before the transaction closed. Roughly $2.8 million of that funding remained on the balance sheet at closing, contributing to the company’s combined cash position of approximately $31 million.
Following transaction expenses, the company expects to retain around $24.5 million in available cash. Executives highlighted the relatively low transaction costs associated with the merger, attributing the outcome to GigCapital Global’s transaction methodology, which they said focuses on preserving capital for operating growth rather than administrative overhead.
The merger received shareholder approval during GigCapital7’s extraordinary general meeting held on May 7, 2026. Trading of Hadron Energy’s common stock and warrants officially began on Nasdaq on May 26, 2026.
Company founder and Chief Executive Officer Sam Gibson described the Nasdaq debut as the beginning of a transformative phase for Hadron Energy and emphasized that the company now has the financial stability needed to aggressively pursue its reactor development roadmap.
Gibson said the Halo reactor is designed around proven light-water reactor technology because of its extensive commercialization history and established safety profile across the global nuclear industry. By adapting that technology into a compact microreactor configuration, Hadron aims to create a scalable solution capable of addressing growing energy security and grid reliability challenges.
According to Gibson, the company intentionally selected the 10 MWe scale because it aligns with emerging customer demand patterns across multiple sectors. He noted that many industrial facilities and infrastructure operators require dependable onsite electricity generation that is smaller and more flexible than traditional utility-scale nuclear reactors but more reliable than intermittent renewable power sources.
Hadron Energy also emphasized that the reactor’s factory-built approach could streamline manufacturing and deployment timelines. Traditional nuclear plants often require years of onsite construction, while modular systems are designed to simplify assembly and reduce project complexity. The company believes transportable microreactors could become especially valuable in isolated or strategically important locations where energy resilience is critical.
Potential target markets identified by Hadron include data centers, military installations, industrial processing facilities, remote mining operations, and civilian infrastructure requiring uninterrupted power. The rapid growth of artificial intelligence infrastructure and hyperscale computing facilities has significantly increased interest in dependable high-capacity electricity solutions, creating a potentially attractive market opportunity for advanced nuclear developers.
The company also referenced support from the U.S. Administration, noting that Hadron previously received a letter of support from the White House signed by the President. The support reflects broader federal interest in expanding domestic nuclear energy capabilities as part of national energy security and decarbonization objectives.
Hadron executives believe the Halo Microreactor could help strengthen both national security and energy independence by enabling localized power generation that is resilient against grid disruptions and fuel supply instability. Nuclear microreactors have increasingly been discussed as potential solutions for defense applications and critical infrastructure resilience due to their long operational cycles and ability to operate independently from centralized grids.
Dr. Avi Katz, Founder, Chairman, and Chief Executive Officer of GigCapital7, will serve as Executive Chairman of Hadron Energy following the merger. Katz praised the transaction outcome and said Hadron represented the type of advanced technology company GigCapital seeks to support through its SPAC platform.
According to Katz, GigCapital was attracted to Hadron’s participation in a strategically important and environmentally focused industry, as well as its reliance on proven nuclear technology rather than experimental reactor concepts. He also pointed to the company’s operational discipline and commercialization strategy as important differentiators.
Katz stated that the successful completion of the merger with approximately $31 million in equity capital and no debt provides Hadron with a clean financial structure that supports long-term growth objectives. He added that minimizing deSPAC transaction costs helped maximize the company’s ability to direct resources toward reactor development and commercialization efforts.
The broader nuclear energy industry has experienced renewed momentum in recent years as governments and corporations pursue carbon reduction goals while also seeking dependable baseload electricity generation. Small modular reactors and microreactors have become key areas of investment due to their potential to provide scalable nuclear energy solutions with smaller physical footprints and lower capital requirements than traditional nuclear plants.
Hadron Energy enters the public markets at a time when interest in advanced nuclear technologies is accelerating across North America, Europe, and parts of Asia. Policymakers increasingly view nuclear power as an essential component of long-term decarbonization strategies, especially as electricity demand rises from electrification initiatives, industrial growth, and digital infrastructure expansion.
With its Nasdaq listing complete and fresh capital secured, Hadron Energy now faces the next phase of its corporate development journey: advancing regulatory approvals, scaling engineering capabilities, establishing manufacturing partnerships, and positioning the Halo Microreactor for eventual commercial deployment. The company believes its public market status, combined with its debt-free balance sheet and access to growth capital, will help accelerate progress toward those objectives as it seeks to establish itself within the emerging microreactor industry.
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