X-Energy, Inc.

Exchange: Nasdaq
Industry: Fabricated Plate Work (Boiler Shops)
SEC CIK: 0002088896

SEC filings (opens in a new tab)

No open-market purchases or sales by X-Energy, Inc. insiders were filed in the last 90 days; 192 institutions reported holding it in 13F filings for Q2 2026, worth $3.34B in total; 3 superinvestors hold it, including ARK Invest and Soros Fund Management.

Key figures

Market capNo recent share count in SEC filings: –
Insider buysOpen market, last 90 days: 0
Insider sellsOpen market, last 90 days: 0
13F holdersQ2 2026, +192 vs. previous quarter: 192
13F valueReported value at the end of Q2 2026: $3.34B
Superinvestors holdingAt the end of Q2 2026: 3

Price chart

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Financials

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From SEC filings, in USD.

Revenue, Q2 FY2026: $54.6M; No comparable prior period

Short interest

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From FINRA, settlement date Oct 15, 2026.

Short interest: 22.3M; Shares sold short
Change: −2.80M; −11.2% vs. previous
Days to cover: 3.73; At average daily volume

Superinvestors holding XE, Q2 2026

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3 superinvestors report holding X-Energy, Inc. on Form 13F. Percentages are the stock's share of each portfolio.

ARK Invest

Cathie Wood

0.6%

X-Energy, Inc.'s share of the portfolio

Shares: 5,411,846
Value: $99.4M

Soros Fund Management

George Soros

0.5%

X-Energy, Inc.'s share of the portfolio

Shares: 2,245,454
Value: $41.2M

Other superinvestors holding XE (part 1)
Superinvestor	Weight	Value
Viking Global Investors	<0.1%	$13.1M

Latest insider trades

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Open-market purchases and sales by X-Energy, Inc. insiders from Form 4, newest first.

Insider trades
Filed (ET)	Trade date	Filing delay	Insider	Transaction	Shares	Avg price	Value	Holding change
Apr 29, 2026 (view filing)	Apr 27	2 days	Duling JoelPresident, TRISO-X	PPurchaseClass A Common Stock	+100	$23.00	+$2.30K	0.0%552.7K after
Apr 29, 2026 (view filing)	Apr 27	2 days	Garcia LauraChief Accounting Officer	PPurchaseClass A Common Stock	+1.20K	$23.00	+$27.6K	+0.6%196.8K after
Apr 29, 2026 (view filing)	Apr 27	2 days	Wallace Michael J WallaceDirector	PPurchaseClass A Common Stock	+1.00K	$23.00	+$23.0K	+1.4%71.2K after
Apr 29, 2026 (view filing)	Apr 27	2 days	Hyle Kathleen WDirector	PPurchaseClass A Common Stock	+10.0K	$23.00	+$230.0K	+8.5%127.6K after

Top 10 13F holders, Q2 2026

See all 192 holders

The largest institutional positions in X-Energy, Inc. at the end of Q2 2026; share changes are against Q1 2026.

Institutions holding XE in Q2 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
Amazon.com, Inc.	65,836,948	$1.21B	27.33%	+65,836,948	New
Segra Capital Management, LLC	14,475,734	$265.8M	61.09%	+14,475,734	New
Ares Management LLC	13,844,585	$254.2M	11.08%	+13,844,585	New
Ontario Teachers Pension Plan Board	8,464,443	$155.4M	0.99%	+8,464,443	New
Van Eck Associates Corp	7,121,895	$130.8M	0.08%	+7,121,895	New
Point72 Asset Management, L.P.	5,689,086	$104.5M	0.16%	+5,689,086	New
ARK Investment Management LLCSuperinvestorARK Invest	5,411,846	$99.4M	0.65%	+5,411,846	New
BlackRock, Inc.	4,399,867	$80.8M	0.00%	+4,399,867	New
Jane Street Group, LLC	3,855,908	$70.8M	0.05%	+3,855,908	New
Dow Chemical Co	3,792,499	$69.6M	30.48%	+3,792,499	New

Holders of 5% or more of XE

See all 5 holders and filings

Holders whose latest Schedule 13D or 13G filing reports 5% or more of X-Energy, Inc..

Largest holders of XE from 13D and 13G filings
Holder	Latest form	Stake	Change	First filed	Latest filing	Filing
Ghaffarian Kamal Seyed	13G	25.00%92.9M shares	New	Aug 14, 20261 filing	Aug 14, 2026	SEC
Amazon.com, Inc.	13G	22.90%65.8M shares	New	Aug 6, 20261 filing	Aug 6, 2026	SEC
Ares Partners Holdco LLC	13G	12.30%38.3M shares	New	Aug 12, 20261 filing	Aug 12, 2026	SEC
Gfnci LLC	13G	6.80%18.6M shares	New	May 4, 20261 filing	May 4, 2026	SEC
Segra Capital Management, LLC	13G	5.30%15.1M shares	New	Jul 17, 20261 filing	Jul 17, 2026	SEC