X-Energy director awarded 6,522 RSUs

SONNENSCHEIN EDWARD reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

SONNENSCHEIN EDWARD reported acquisition or exercise transactions in this Form 4 filing.

X-Energy, Inc. director Edward Sonnenschein reported updated holdings of Class A common stock. An entity associated with him, IBX X-Energy SPV I, LLC, holds 30,831 shares indirectly. Separately, he received a direct grant of 6,522 shares at no cost, structured as restricted stock units.

Each RSU represents one share of Class A common stock and will vest on the earlier of April 27, 2027 or the date of the 2027 annual meeting, subject to continued service. Following this award, Sonnenschein directly holds 820,114 shares, which include 17,540 shares of restricted stock.

Insider Trade Summary

Grant/Award: 6,522 shares

Grant/Award 2 txns

Insider SONNENSCHEIN EDWARD

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock	6,522	$0.00	$0.00
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Class A Common Stock — 820,114 shares (Direct); Class A Common Stock — 30,831 shares (Indirect, By IBX X-Energy SPV I, LLC)

Footnotes (2)

1. F1. Each restricted stock unit ("RSU") represents the right to receive one share of Class A common stock. The RSUs will vest on the earlier to occur of (x) April 27, 2027 and (y) the date of the 2027 Annual Meeting, subject to continued service.
2. F2. Includes 17,540 shares of restricted stock.

Key Figures

RSU grant: 6,522 shares RSU vesting date: April 27, 2027 Direct holdings after award: 820,114 shares +3 more

6 metrics

RSU grant 6,522 shares Restricted stock unit award of Class A common stock

RSU vesting date April 27, 2027 RSUs vest on earlier of this date or 2027 annual meeting

Direct holdings after award 820,114 shares Class A common stock directly held following RSU grant

Restricted stock included 17,540 shares Restricted stock included within direct holdings total

Indirect holdings 30,831 shares Class A common stock held by IBX X-Energy SPV I, LLC

Grant price per share $0.0000 per share Price for 6,522-share RSU grant

Key Terms

restricted stock unit ("RSU"), restricted stock, Class A common stock, indirect ownership

4 terms

restricted stock unit ("RSU") financial

"Each restricted stock unit ("RSU") represents the right to receive one share"

restricted stock financial

"Includes 17,540 shares of restricted stock."

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Class A common stock financial

"Each restricted stock unit ("RSU") represents the right to receive one share of Class A common stock."

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

indirect ownership financial

"direct_or_indirect": "I","nature_of_ownership": "By IBX X-Energy SPV I, LLC""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did XE director Edward Sonnenschein report on this Form 4?

Edward Sonnenschein reported a grant of 6,522 shares of X-Energy, Inc. Class A common stock as restricted stock units at no cost. The filing also lists an indirect holding of 30,831 shares through IBX X-Energy SPV I, LLC and updated direct holdings.

How many X-Energy (XE) shares does Edward Sonnenschein hold after the reported transactions?

After the reported award, Edward Sonnenschein directly holds 820,114 shares of X-Energy Class A common stock. This figure includes 17,540 shares of restricted stock and reflects his updated direct ownership position as shown in the Form 4 filing.

What are the terms of the 6,522 restricted stock units granted to the XE director?

Each of the 6,522 restricted stock units represents one share of X-Energy Class A common stock. The RSUs will vest on the earlier of April 27, 2027 or the date of the 2027 annual meeting, provided Sonnenschein continues his service through that vesting date.

How many X-Energy (XE) shares are held indirectly through IBX X-Energy SPV I, LLC?

The filing shows 30,831 shares of X-Energy Class A common stock are held indirectly through IBX X-Energy SPV I, LLC. These shares are reported as indirect ownership associated with director Edward Sonnenschein, separate from his directly held and restricted stock positions.

Does the Form 4 for X-Energy (XE) indicate any insider share sales by Edward Sonnenschein?

The Form 4 does not report any sales by Edward Sonnenschein. It shows an acquisition in the form of a 6,522-share restricted stock unit grant at no cost and an informational entry for 30,831 indirectly held shares, with no open-market dispositions disclosed.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/29/2026 - 04:18 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

SONNENSCHEIN EDWARD

(Last) (First) (Middle)

C/O X-ENERGY, INC.

530 GAITHER ROAD, SUITE 700

(Street)

ROCKVILLE MARYLAND 20850

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
X-Energy, Inc. [ XE ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/28/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	04/28/2026		A		6,522	A	$0(1)	820,114(2)	D
Class A Common Stock								30,831	I	By IBX X-Energy SPV I, LLC

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Each restricted stock unit ("RSU") represents the right to receive one share of Class A common stock. The RSUs will vest on the earlier to occur of (x) April 27, 2027 and (y) the date of the 2027 Annual Meeting, subject to continued service.

2. Includes 17,540 shares of restricted stock.

	/s/ Elizabeth Petrone, Attorney-in-Fact	04/29/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)