X-energy
Summary ipo Updated Apr 24, 2026This profile is AI-generated. If you spot an error, please help us fix it by sharing a URL to the correct information.
Founders
About
X-energy is a Rockville, Maryland-based developer of small modular nuclear reactors (SMRs), founded in 2009 by Kam Ghaffarian 12. The company’s flagship Xe-100 is an 80-megawatt pebble-bed reactor designed for standardized manufacturing, using helium gas cooling and TRISO fuel pellets (uranium kernels wrapped in carbon and silicon) engineered to withstand higher temperatures and reduce meltdown risk 1. J. Clay Sell, former US Deputy Secretary of Energy, has served as CEO since 2019 23.
The company has struck major commercial deals with Amazon’s Climate Pledge Fund (which led its Series C-1 and committed to purchase up to 5 gigawatts of X-energy power by 2039) and with Dow Chemical, which is hosting an Xe-100 deployment at a Texas chemical plant for heat and power 1.
Funding History
| Date | Round | Amount | Lead | Co-investors |
|---|---|---|---|---|
| 2026-04-24 | IPO | $1.02B | Nasdaq: XE @ $23/share | J.P. Morgan, Morgan Stanley, Jefferies, Moelis & Co. (bookrunners) 14 |
The IPO priced at $23 per share, above the marketed $16-$19 range, raising roughly $1.02 billion and giving X-energy a Nasdaq listing under ticker XE on April 24, 2026 14. Shares surged approximately 36% in their debut 4.
What Investors Say
No independently sourced investor quotes found for this round.
What Founders Say
No independently sourced founder quotes found for this round.
Sources
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TechCrunch, “Nuclear startup X-energy raises $1B in data center-driven IPO,” April 24, 2026, accessed April 2026. https://techcrunch.com/2026/04/24/nuclear-startup-x-energy-raises-1b-in-data-center-driven-ipo/↩↩↩↩↩
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X-energy, “Leadership,” accessed April 2026. https://x-energy.com/leadership/↩↩
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PR Newswire, “X-energy Appoints Clay Sell as Chief Executive Officer,” accessed April 2026. https://www.prnewswire.com/news-releases/x-energy-appoints-clay-sell-as-chief-executive-officer-300783091.html↩
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Invezz, “X-Energy surges 36% in debut as $1B IPO signals nuclear revival,” April 24, 2026, accessed April 2026. https://invezz.com/news/2026/04/24/x-energy-surges-36-in-debut-as-1b-ipo-signals-nuclear-revival/↩↩↩