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Stack Capital Group Inc. Invests $5 Million USD Into X-energy

MWN-AI** Summary

Stack Capital Group Inc. has made a strategic investment of $5 million USD in X-energy Reactor Company, LLC, a leader in advanced nuclear technology focused on developing next-generation small modular reactors (SMRs) and innovative nuclear fuel solutions. X-energy, based in Rockville, Maryland, has gained prominence for its commitment to providing safe, reliable, and carbon-free energy options, including its cutting-edge Xe-100 reactor and the factory-built microreactor, XENITH. The company’s proprietary TRISO-X fuel is notable for its ability to withstand high temperatures without melting, positioning X-energy at the forefront of nuclear commercialization.

Founded in 2009, X-energy has secured significant financial backing, with approximately $1.8 billion sourced from private capital and up to $1.2 billion in funding from the U.S. Department of Energy's Advanced Reactor Demonstration Program. This robust support underlines the company’s pivotal role in the shift towards sustainable energy solutions, drawing interest from major stakeholders such as Amazon, Dow Inc., and Ontario Power Generation.

Jimmy Vaiopoulos, CFO of Stack Capital, emphasized the critical need for reliable, carbon-free baseload power to support global economic growth amid trends like artificial intelligence and industrial decarbonization. He highlighted X-energy’s differentiated technology, integrated fuel supply, and tangible commercial success as factors that make it a standout investment.

Stack Capital, as an investment holding company, aims to provide shareholders with exposure to a diverse portfolio of late-stage private businesses while maintaining liquidity through its TSX-listed shares. Its investment in X-energy signifies a commitment to supporting the evolving energy infrastructure needed in a rapidly changing economic landscape. For more details, interested parties can visit Stack Capital's website or contact the corporate development team directly.

MWN-AI** Analysis

Stack Capital Group Inc.'s recent $5 million investment in X-energy Reactor Company highlights a significant opportunity for investors in the burgeoning sector of advanced nuclear technology. As authorities and corporations prioritize carbon-free energy solutions to meet the demands of a growing digital economy, X-energy's innovative small modular reactors (SMRs) position the company at the forefront of this transformation.

X-energy’s unique offerings, such as the Xe-100 and the TRISO-X fuel technology, are not only groundbreaking but also backed by substantial private funding and critical government support. The $1.2 billion from the U.S. Department of Energy illustrates a strong endorsement of their technology, suggesting that the market perceives X-energy as a viable player in achieving long-term climate goals. With partnerships involving major players like Amazon and Ontario Power Generation, X-energy enhances its credibility and market potential.

For Stack Capital, this investment aligns with its strategy to harness growth in late-stage private businesses, giving shareholders access to an asset class that is typically out of reach. Given the increasing emphasis on reliable, low-carbon energy sources, investing in Stack Capital not only diversifies a portfolio but also positions investors to capitalize on advancements in an essential sector.

Strategically, investors should monitor X-energy’s technology deployments and regulatory developments as adoption rates will significantly impact both performance and valuation. Additionally, the unique nature of Stack Capital's structure, providing liquidity through public listings, offers an intriguing advantage. As decarbonization accelerates globally, those looking to enhance their portfolio with future-focused investments may find Stack Capital and its engagement in X-energy to be substantial candidates for consideration as part of an advanced energy investment thesis.

**MWN-AI Summary and Analysis is based on asking OpenAI to summarize and analyze this news release.

Source: GlobeNewswire

TORONTO, Jan. 28, 2026 (GLOBE NEWSWIRE) -- Stack Capital Group Inc. (“Stack Capital”) (TSX:STCK; TSX:STCK.WT.A; TSX:STCK.WT.B), an investment holding company that invests in equity, debt and/or other securities of leading growth-to-late-stage private businesses, is pleased to announce that it has invested $5 million USD into X-energy Reactor Company, LLC (“X-energy” or the “Company”), an advanced nuclear technology company developing next-generation small modular reactors (“SMRs”) and proprietary nuclear fuel solutions.

Founded in 2009 and headquartered in Rockville, Maryland, X-energy specializes in the delivery of safe, reliable, and carbon-free energy solutions such as the Xe-100, its most advanced small modular reactor; XENITH, a factory-built micro reactor for critical infrastructure, microgrids, and remote communities; and TRISO-X, a proprietary and robust particle fuel that can withstand very high temperatures without melting. The Company is a leader in advanced nuclear commercialization, supported by approximately $1.8 billion in private capital and up to $1.2 billion in U.S. Department of Energy funding through the Advanced Reactor Demonstration Program. X-energy is also backed by blue-chip customers and stakeholders such as Amazon, Dow Inc., Energy Northwest, Ontario Power Generation, and Centrica, positioning the Company at the forefront of global nuclear deployment.

“Reliable, carbon-free baseload power is becoming one of the most critical constraints on global economic growth, particularly as AI, electrification, and industrial decarbonization accelerate,” said Jimmy Vaiopoulos, CFO of Stack Capital. “Advanced nuclear energy is uniquely positioned to meet this demand at scale, and X-Energy stands out as a category leader with differentiated technology, integrated fuel supply, and real commercial traction. We believe X-Energy represents a foundational investment in the future energy infrastructure required to support both the digital economy and long-term climate objectives.”

About Stack Capital

Stack Capital is an investment holding company and its business objective is to invest in equity, debt, and/or other securities of growth-to-late-stage private businesses. Through Stack Capital, shareholders have the opportunity to gain exposure to the diversified private investment portfolio; participate in the private market; and have liquidity due to the listing of the Common Shares and Warrants on the TSX. At the same time, the public structure also allows Stack Capital to focus its efforts on maximizing long-term performance through a portfolio of high growth businesses, which are not widely available to most Canadian investors. SC Partners Ltd. has taken the initiative in creating Stack Capital and acts as its administrator and is responsible to source and advise with respect to all portfolio investments.

For more information, please visit our website at www.stackcapitalgroup.com or contact:

Brian Viveiros
VP, Corporate Development, and Investor Relations
647.280.3307
[email protected]

A photo accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/93ad7890-7f3c-4eb3-99b0-c64c0c8478eb


FAQ**

How does Stack Capital Group Inc. plan to leverage its investment in X-energy Reactor Company, LLC, through its Common Share Purchase Warrants STCK.WT:CC to maximize returns for investors?

Stack Capital Group Inc. aims to leverage its investment in X-energy Reactor Company, LLC, by utilizing its Common Share Purchase Warrants STCK.WT:CC to acquire shares at a favorable price, allowing for potential appreciation and enhanced returns for investors as X-energy grows.

What are the expected timelines for X-energy to commercialize its advanced nuclear technologies, and how could this impact Stack Capital Group Inc.'s valuation of its Common Share Purchase Warrants STCK.WT:CC?

X-energy aims to commercialize its advanced nuclear technologies by 2025, which could significantly enhance Stack Capital Group Inc.'s valuation of its Common Share Purchase Warrants (STCK.WT:CC) if successful, due to increased investor interest in sustainable energy solutions.

In light of Stack Capital Group Inc.'s $5 million investment in X-energy, what specific growth metrics should investors monitor to evaluate the performance of Common Share Purchase Warrants STCK.WT:CC?

Investors should monitor X-energy's revenue growth, project development milestones, customer acquisition rates, market expansion efforts, and the overall performance of its technology in relation to the terms set by Stack Capital's $5 million investment to evaluate STCK.WT:CC.

How does Stack Capital Group Inc. assess the risks associated with investing in advanced nuclear technologies like X-energy, especially in relation to its Common Share Purchase Warrants STCK.WT:CC?

Stack Capital Group Inc. evaluates risks in advanced nuclear technologies such as X-energy by analyzing market trends, regulatory landscapes, technological viability, and financial metrics, particularly focusing on the implications for its Common Share Purchase Warrants STCK.WT:CC.

**MWN-AI FAQ is based on asking OpenAI questions about Stack Capital Group Inc. (TSXC: STCK:CC).

Stack Capital Group Inc.

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