X-Energy, Inc.
Profile
X-energy develops the Xe-100 high-temperature gas-cooled reactor (80 MWe per module) fuelled with TRISO pebbles from its TRISO-X subsidiary, whose TX-1 fuel plant in Oak Ridge completed vertical construction in September 2026 (release 24 Sep 2026). Its lead project, four units at Dow's Seadrift site in Texas (Long Mott Generating Station), has a construction permit application docketed since May 2025; the NRC issued an environmental assessment with FONSI in May 2026 and held the mandatory hearing on 22 Sep 2026, with the permit decision pending as of 9 Oct 2026. A second programme with Energy Northwest (Cascade, up to 12 units, Amazon-backed) is in NRC pre-application. After a terminated 2023 SPAC deal, X-energy completed an IPO priced at US$23 per share and began trading on Nasdaq as XE on 24 Apr 2026 (inspenet, 27 Apr 2026); stockanalysis.com (8 Oct 2026) shows 889 employees.
Source: stockanalysis.com NASDAQ:XE quote page (fetched 9 Oct 2026); inspenet 27 Apr 2026; data/smr_projects.csv (NRC), 9 Oct 2026 · confidence highKey projects
| Project | Country | Stage | Note | Map |
|---|---|---|---|---|
| X-energy Xe-100 (HTGR) - Long Mott Generating Station, Dow Seadrift Operations, Calhoun County, Texas | USA | Licence application | Regulator stage as of 9 Oct 2026: CPA docketed May 2025; environmental assessment with FONSI issued May 2026 (Federal Register 20 May 2026); mandatory hearing held 22 Sep 2026; CP decision pending (safety review due later 2026) | open on the map |
| X-energy Xe-100 (HTGR) - Cascade Advanced Energy Facility, DOE Hanford Reservation adjacent to Columbia Generating Station, Benton County, Washington | USA | Pre-licensing | Regulator stage as of 9 Oct 2026: NRC pre-application activities since Aug 2024 (docket 99902130) for a future Part 50 construction permit application; no CPA submitted as of 8 Sep 2026 page update | open on the map |
| TRISO-X fuel fabrication facility (TX-1), Oak Ridge TN | USA | Under construction | vertical construction complete per release 24 Sep 2026 (stockanalysis news feed); NRC licence status not verified | – |
Deals
| Date | Type | Deal | Status | Capacity MW | Value |
|---|---|---|---|---|---|
| 15 Sep 2025 | Policy | UK and US announce Atlantic Partnership for Advanced Nuclear Energy ahead of Trump state visit | Signed | n/a | n/a |
| 31 Mar 2025 | Licensing milestone | X-energy and Dow submit NRC construction permit application for Long Mott (Seadrift) Xe-100 plant | Pending | 320 | n/a |
| 16 Oct 2024 | SMR order | Amazon backs X-energy (USD 500m round), Energy Northwest Cascade SMRs and Dominion SMR study | Announced | 320 | 500 m USD |
Documents
| Document | Type | Date |
|---|---|---|
| stockanalysis.com quote page (market cap, listing, employees, description) | Quote page | 8 Oct 2026 |
| inspenet: X-energy fixes the price of its expanded IPO at US$23 | News | 27 Apr 2026 |
| NRC mandatory hearing notice - Long Mott Generating Station construction permit | Regulator | 22 Sep 2026 |
| NRC pre-application page - Energy Northwest (Cascade) | Regulator | 8 Sep 2026 |
Chart
- Market cap, USD
- 5.6 bn USDas of 8 Oct 2026 · stockanalysis.com
- Market cap, local
- n/a