XE · NASDAQ · CIK 0002088896
X-Energy
What X-Energy owns has not been researched yet. This page is its ownership register, who holds it, and the absence of holdings below means nobody has looked rather than that there is nothing to find.
X-Energy - Profile
- Industry
- Fabricated Plate Work (Boiler Shops)SIC 3443
- Listed on
- Nasdaq
- Incorporated in
- Delaware
- Financial year ends
- 31 December
Source
Address, industry classification, listing and incorporation come from X-Energy's own SEC filer record, so the industry is the SEC's dry classification rather than a marketing label. The website was checked for this site against the company's own pages. The description was written for this site in November 2026 from Wikipedia: X-energy, X-energy Announces Pricing of Upsized Initial Public Offering, X-energy is Developing a Pebble Bed Reactor That They Say Can't Melt Down (US Department of Energy) and X-Energy, Inc. Form 10-Q for the quarter ended 31 March 2026 (SEC), not taken from any single article.
Share price
XE
Description
X-energy is an American nuclear reactor and fuel company based in Rockville, Maryland, founded in 2009 by Kam Ghaffarian and led since 2019 by former Deputy Energy Secretary Clay Sell. It develops the Xe-100, a helium cooled pebble bed small modular reactor of roughly 80 megawatts electric per unit that is designed to be built in four unit plants and to supply high temperature steam as well as power, and it manufactures the TRISO-X fuel the reactor runs on: uranium kernels coated in carbon and ceramic layers and pressed into billiard ball sized fuel pebbles, at a fabrication plant in Oak Ridge, Tennessee. Announced deployments include the Long Mott Generating Station at a Dow chemical site on the Texas Gulf Coast, the Cascade Advanced Energy Facility with Energy Northwest in Washington State, and a UK agreement with Centrica. The company listed on Nasdaq under the ticker XE in April 2026, raising just over one billion dollars.
Who owns X-Energy.
sized by
modelled, reported or pending
Select a row or a slice for its provenance: the filing it came from, when it was measured, and the arithmetic behind it if it was modelled.
The full register, from 13F filings
The Register tab above is hand research: a dozen holders, each traced to the filing it came from. This asks the same question of the whole market for the quarter ended 30-jun-2026, where 186 managers reported a position. Broad where the research is deep, and shallow in the ways a 13F always is.
186 managers reported a position, together holding 181.2m shares, or 63.0% of the company. The 40 largest are listed. Percentages are of a share count taken later than this quarter, because the count in force at the snapshot is not published as a structured fact for this company. Where the count has moved since, the figures are off by that much.
Built from 13F filings, which report US listed, long, US custodied positions only. A register from this source is a floor rather than a level: a holder's true position can be far larger, as BlackRock's ASML stake shows at 1.28m shares in a 13F against 26.3m in its 13G/A. Holdings held through derivatives, outside US custody, or below a manager's reporting obligation do not appear. Where a holder is marked as a family, its total sums several separate filing entities and describes something no single filing describes; the constituent entities and their share counts are listed so the total can be checked. That roll-up can legitimately exceed the family's own Schedule 13G, because a 13G is filed by one legal entity: Vanguard reports Alphabet through ten advisory entities, and The Vanguard Group Inc itself reported zero after its January 2026 disaggregation.
What a reader needs to know to read these numbers
- Added 4 Nov 2026 at stage two of the newly listed company policy in docs/newly-listed-companies.md, when the registers moved to the quarter ended 30 Jun 2026 and the first 13F filers reported this company. It listed on Nasdaq in April 2026, after the 31 Mar 2026 snapshot, and kept its private company page until this register existed. It is not an S&P 500 constituent and is covered because it has a ticker and a CIK, not because of index membership.
- Shares outstanding is the Class A count, 287,458,734 as of 10 Aug 2026, from the cover page of the company's own 10-Q for the quarter ended 30 Jun 2026. The same cover states 118,907,374 Class B shares. The 13F register and Amazon's 13G both describe Class A, so Class A is the denominator; the company reports no undimensioned EntityCommonStockSharesOutstanding concept, which is why the figure is read from the cover page rather than the XBRL concept endpoint.
- Holdings are NOT researched. This company was added for its ownership register, and the empty holdings list here means nobody has looked at what it owns, not that it owns nothing. The page says so rather than presenting an unexamined side as a sourced finding.
Looked for, not found
Recorded rather than filled in. Each of these is a place where a number could have been invented and was not.
- Market capitalisation, which no filing states.