X-Energy (XE) logo

X-Energy's IPO

X-Energy · Filed Mar 20 · Nasdaq · Form S-1

Listed Apr 24, 2026 at $23 on Nasdaq as XE. Today 52% below its $23 offer price; its first day closed +27.0%.

Offer price: $23, a share
Shares: 44,254,659, offered
Ticker: XE, Nasdaq

From its final prospectus (424B4) on SEC EDGAR.

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What does X-Energy do?

X-Energy's facts, each with its source
FactX-Energy
What it does“X-energy is a leading designer of advanced nuclear reactor technology (commonly referred to as small modular reactors, "SMRs") and manufacturer of advanced nuclear fuels.”From its final prospectus (424B4) of Apr 27, 2026
Founded2009From its final prospectus (424B4) of Apr 27, 2026
HeadquartersRockville, MarylandFrom its final prospectus (424B4) of Apr 27, 2026
Websitex-energy.comFrom its final prospectus (424B4) of Apr 27, 2026

What is the offering?

Each figure names the filing it is from and that filing's date.

X-Energy's facts, each with its source
FactX-Energy
Shares offered44,254,659From the final prospectus (424B4) filed Apr 27, 2026
Offer price$23 a shareFrom the final prospectus (424B4) filed Apr 27, 2026
Raised at that price$1.02 billionFrom the final prospectus (424B4) filed Apr 27, 2026
Underwriters' discount$58.5 millionFrom the final prospectus (424B4) filed Apr 27, 2026
UnderwritersJ.P. Morgan, Morgan Stanley, Jefferies, Moelis, Cantor, and UBS, with 3 moreFrom the final prospectus (424B4) filed Apr 27, 2026, as its cover names them
ExchangeNasdaq, as XEFrom the final prospectus (424B4) filed Apr 27, 2026

What the filing says about its money

X-Energy's facts, each with its source
FactX-Energy
Last preferred stockSeries D preferredFrom its final prospectus (424B4) of Apr 27, 2026

What risks does X-Energy name first?

  1. “We have not yet delivered a commercial Xe-100 or achieved final investment decisions (FIDs) for any deployments; our FOAK schedule, cost, and performance are uncertain and delays or setbacks, particularly on initial projects, could materially harm our business, reputation, and finances.”
  2. “We may not generate sufficient liquidity to fund operations and growth; our business is capital intensive and we will require substantial additional financing, which may not be available on acceptable terms and could be dilutive.”
  3. “Our business depends heavily on U.S. government support, including the ARDP; future appropriations are uncertain, and any reduction, delay, or termination, or failure to obtain needed extensions or modifications under the ARDP Agreement or increases due to inflation and cost growth…”

The first three of the risks its prospectus summary lists, in the company's words. The rest, and each in full, are in the filing. Read the filing.

Dates so far

X-Energy's IPO dates, each with its source
WhatDay
Registration filedForm S-1, SEC EDGARMar 20, 2026
Declared effective by the SECSEC notice of effectiveness, SEC EDGARApr 23, 2026
Pricedfinal prospectus (424B4), filed Apr 27, SEC EDGARApr 23, 2026
Exchange registration filedexchange registration (Form 8-A), SEC EDGARApr 24, 2026
First tradeMassive's IPO calendarApr 24, 2026
Lock-up endsfinal prospectus, SEC EDGAR: “180 days after the date of this prospectus”Oct 20, 2026, at the latest

How did its first days trade?

From its daily bars, each close against its $23 offer price.

X-Energy's first sessions
DayOpenCloseFrom the
offer
Apr 24$30.11$29.20+27.0%
Apr 27$32.02$35.98+56.4%
Apr 28$34.69$34.11+48.3%
Apr 29$35.47$31.08+35.1%
Apr 30$31.80$31.73+38.0%

What is X-Energy's Quality Score?

0

Poor

139 trading days so far; 2 of the 14 checks wait for more history.

XE's page, with every reason behind its score

Tested. Our top-scored stocks returned 2.2x the average stock over the next month. Reconstructed after the fact; recorded live since Sep 9, 2026. How we tested it

The other IPOs expected

The other IPOs expected or in registration
CompanyPrice

X-Energy IPO questions

When is X-Energy's IPO?

Listed Apr 24, 2026 at $23 on Nasdaq as XE.

What is X-Energy's IPO price?

X-⁠Energy's IPO priced at $23 a share, per its final prospectus of Apr 27, 2026.

How many shares is X-Energy selling?

44,254,659 shares, per its final prospectus (424B4).

Who are the underwriters?

J.P. Morgan, Morgan Stanley, Jefferies, Moelis, Cantor, UBS, TD Cowen, Guggenheim Securities, and Wolfe | Nomura Alliance, as the prospectus's cover names them.

When does the lock-up end?

X-⁠Energy's IPO lock-⁠up ends Oct 20, 2026 at the latest; its prospectus lets it end sooner on the terms it sets out. Its final prospectus says: “180 days after the date of this prospectus.”

Does Breakaway rate X-Energy?

X-⁠Energy has a Quality Score of -1 today. The score counts the 14 chart checks and the company's filings; a check that needs more history than a new stock has waits for it.

Can Breakaway say where X-Energy's price will go?

No. Breakaway does not say where a price will go. Every figure here is from the company's SEC filings, linked on each line.

Where every figure comes from: how the IPO pages are made.

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Sources: X-Energy, Inc.'s final prospectus (424B4) of Apr 27, 2026; the prices, the stock's daily bars, 15 minutes behind.

Not advice. Figures from each company's SEC filings, linked on each line. Breakaway is not an underwriter, broker, or adviser, and does not say where a price will go.

Scores as of 10:45 PM ET, 15 minutes behind.

Our top-scored stocks' record: Oct 2021 to Sep 2026, before costs. Recorded live since Sep 9, 2026.

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