Private Market View

X-energy

Rockville, MD · Founded 2009 · In IPO Registration

PA Mark · $/share
$18
Sep 2026
Implied valuation
$6.9B
Total raised
$1.8B
Last round
—

Key facts

as of Sep 2026
  • X-energy’s last known valuation is $6.9B (Mar 2026).
  • It has raised $1.8B; the latest was IPO ($750.0M) in Mar 2026.
  • Notable investors include Alumni Ventures, U.S. Department of Energy, Menlo Ventures, Point72 Ventures, Emerson Collective — 50 tracked in total.
  • 3 institutional filers report fund marks on X-energy across 3 filings.
  • Private Market View tracks 9 recorded secondary trades in X-energy shares.
  • 1 investment vehicle was formed to buy X-energy shares in the last 12 months, reporting $19.0M sold to 1 investors, per SEC Form D filings.
  • Status: In IPO Registration.
PA Mark — composite indicative price
MEDIUM confidence
~$18per share
as of Sep 2026 · the exact daily mark is a member feature
Composed from 6 inputs:3rd-party trades 64%N-PORT marks 36%
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Recorded secondary trades

9 on record · Dec 2025 – Apr 2026

9 trades between Dec 2025 and Apr 2026. Exact dates, prices and structures are available to Pro members.

Dec 2025peak 4 prints / monthApr 2026
Counts and months are public. The prints are the product.Unlock 9 trade prints

Institutional fund marks

3 filers · latest Jun 2026

3 SEC-registered funds reported 3 fair-value marks on X-energy between Apr 2026 and Jun 2026. Filer-level marks and implied $/share are available to Pro members.

Unlock 3 fund marks

Funding rounds

No rounds on record

No funding rounds for X-energy are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.

Pro members can request priority coverage with a 48-hour turnaround.

Secondary demand: investment vehicles

from SEC Form D filings

In the last 12 months, 1 investment vehicle were formed to buy X-energy shares, reporting $19.0M sold to 1 investors. Most recent filing Feb 2026. Vehicles like these are how secondary buyers pool demand for a name; a rising count is a demand signal.

The vehicle list — each sponsor, filing date, amount sold and investor count — is a Pro table. Unlock the 1 vehicle →
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About X-energy

X-Energy Inc is a leading developer of advanced SMR and fuel technology for clean energy generation. It is seeking to redefine the nuclear energy industry through its flagship product, the Xe-100, an advanced small modular HTGR designed to generate up to 80 megawatts of electric power and/or up to 200 megawatts of thermal output, depending on the configuration. X-energy's simple and intrinsically safe advanced SMR designs, like the Xe-100, significantly expand the applications and markets for nuclear technology with enhanced safety, lower cost and faster construction timelines when compared with conventional nuclear energy sources and broader use cases when compared with other SMRs.

Sector
Energy
HQ
Rockville, MD, United States
Founded
2009
Employees
916
Ownership
In IPO Registration