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

Executive Summary

• Stack Capital Group Inc. announced a $5 million USD equity investment in X‑energy Reactor Company, LLC, an advanced nuclear technology firm developing small modular reactors (SMRs) and proprietary fuel solutions.
• The investment underscores Stack Capital’s strategy to provide public investors exposure to high‑growth private‑market businesses and supports X‑energy’s continued development of carbon‑free energy technologies.
• X‑energy is backed by approximately $1.8 billion in private capital and up to $1.2 billion in U.S. DOE funding, with notable customers including Amazon, Dow Inc., Energy Northwest, Ontario Power Generation, and Centrica.

Key Details

• Investment Amount: $5 million USD invested by Stack Capital into X‑energy Reactor Company, LLC.
• Purpose of Investment: To provide growth capital for X‑energy’s development of next‑generation SMRs (Xe‑100, XENITH) and TRISO‑X nuclear fuel technology.
• Company Profile – X‑energy:
• Founded 2009; headquartered in Rockville, Maryland.
• Focus on safe, reliable, carbon‑free energy via SMRs and advanced particle fuel.
• Supported by ~US$1.8 billion private capital and up to US$1.2 billion DOE funding (Advanced Reactor Demonstration Program).
• Key customers/stakeholders: Amazon, Dow Inc., Energy Northwest, Ontario Power Generation, Centrica.
• Strategic Rationale (CFO Quote): “Advanced nuclear energy is uniquely positioned to meet the growing demand for reliable, carbon‑free baseload power… X‑Energy stands out as a category leader with differentiated technology, integrated fuel supply, and real commercial traction.” – Jimmy Vaiopoulos, CFO, Stack Capital.
• Impact on Stack Capital: Enhances its portfolio of growth‑to‑late‑stage private businesses, offering shareholders exposure to the emerging nuclear energy sector.

Notable Quotes

“Reliable, carbon‑free baseload power is becoming one of the most critical constraints on global economic growth… 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.” – Jimmy Vaiopoulos, CFO, Stack Capital.