X-Energy officer receives RSU and option grants

Gross Daniel Andrew reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Gross Daniel Andrew reported acquisition or exercise transactions in this Form 4 filing.

X-Energy, Inc. officer Daniel Andrew Gross reported receiving equity compensation consisting of restricted stock units and stock options. He was granted 246,665 shares of Class A common stock as RSUs at a price of $0.00 per share, reflecting a compensation award rather than an open-market purchase. Following this grant, his direct holdings of common stock total 1,025,183 shares.

Gross also received a grant of 332,615 stock options exercisable for Class A common stock at a strike price of $26.44 per share, with 1,605,770 stock options held after the award. The RSUs and options each vest in four substantially equal annual installments beginning on December 23, 2026, spreading the compensation over several years and linking it to continued service.

Insider Trade Summary

Grant/Award: 579,280 shares

Grant/Award 2 txns

Insider Gross Daniel Andrew

Role See Remarks

Type	Security	Shares	Price	Value
Grant/Award	Stock Option	332,615	$0.00	$0.00
Grant/Award	Class A Common Stock	246,665	$0.00	$0.00

Holdings After Transaction: Stock Option — 1,605,770 contracts (Direct); Class A Common Stock — 1,025,183 shares (Direct)

Footnotes (2)

1. F1. Represents a grant of restricted stock units ("RSUs"). Each RSU represents a right to receive one share of the Issuer's Class A common stock upon vesting. The RSUs vest in four substantially equal annual installments beginning on December 23, 2026.
2. F2. The stock options vest in four substantially equal annual installments beginning on December 23, 2026.

Key Figures

RSU grant size: 246,665 shares RSU grant price: $0.00 per share Common shares after RSU grant: 1,025,183 shares +4 more

7 metrics

RSU grant size 246,665 shares Restricted stock units of Class A common stock granted as compensation

RSU grant price $0.00 per share Grant of RSUs at no cash cost to the officer

Common shares after RSU grant 1,025,183 shares Direct Class A common stock holdings following the RSU award

Stock options granted 332,615 options New stock option award linked to Class A common stock

Option strike price $26.44 per share Exercise price for the newly granted stock options

Options after grant 1,605,770 options Total stock options held following the new grant

Vesting start date December 23, 2026 RSUs and stock options vest in four equal annual installments starting on this date

Key Terms

restricted stock units ("RSUs"), Class A common stock, stock options, vest, +1 more

5 terms

restricted stock units ("RSUs") financial

"Represents a grant of restricted stock units ("RSUs"). Each RSU represents a right to receive one share..."

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

Class A common stock financial

"Each RSU represents a right to receive one share of the Issuer's Class A common stock upon vesting."

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.

stock options financial

"The stock options vest in four substantially equal annual installments beginning on December 23, 2026."

Stock options are agreements that give a person the right to buy or sell a company's stock at a specific price within a certain time frame. They are often used as a reward or incentive, similar to a coupon that can be used later if the stock price rises, allowing the holder to make a profit.

vest financial

"The RSUs vest in four substantially equal annual installments beginning on December 23, 2026."

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

exercise price financial

"conversion_or_exercise_price: "26.4400" for the stock option grant."

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

FAQ

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

What equity awards did Daniel Andrew Gross report in X-Energy (XE) Form 4?

Daniel Andrew Gross reported a grant of 246,665 restricted stock units and 332,615 stock options tied to X-Energy Class A common stock. These awards are compensation grants at no cost per share, not open-market purchases, and provide potential future ownership subject to vesting.

At what price can Daniel Andrew Gross exercise his X-Energy (XE) stock options?

The reported X-Energy stock options are exercisable at a strike price of $26.44 per share. This means Gross can buy Class A common stock at $26.44 per share once the options vest and are exercised, regardless of the future market price.

When do the X-Energy (XE) RSUs granted to Daniel Andrew Gross start vesting?

The restricted stock units granted to Daniel Andrew Gross begin vesting on December 23, 2026. They vest in four substantially equal annual installments, so the award will fully vest over four years, assuming continued service through each vesting date.

How many X-Energy (XE) common shares does Daniel Andrew Gross hold after the RSU grant?

After the reported RSU grant, Daniel Andrew Gross directly holds 1,025,183 shares of X-Energy Class A common stock. This figure reflects his post-transaction position and helps indicate the scale of his existing ownership stake after the equity compensation award.

How many X-Energy (XE) stock options does Daniel Andrew Gross hold after the new award?

Following the reported stock option grant, Daniel Andrew Gross holds 1,605,770 stock options tied to X-Energy Class A common stock. These options, including the new 332,615-grant, vest over time and can be exercised at the specified $26.44 strike price once vested.

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

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Accepted by SEC EDGAR 06/03/2026 - 04:08 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
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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^*

Gross Daniel Andrew

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026

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	06/01/2026		A		246,665(1)	A	$0	1,025,183	D

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
Stock Option	$26.44	06/01/2026		A		332,615		(2)	06/01/2036	Class A Common Stock	332,615	$0	1,605,770	D

Explanation of Responses:

1. Represents a grant of restricted stock units ("RSUs"). Each RSU represents a right to receive one share of the Issuer's Class A common stock upon vesting. The RSUs vest in four substantially equal annual installments beginning on December 23, 2026.

2. The stock options vest in four substantially equal annual installments beginning on December 23, 2026.

	/s/ Carter Lawson, Attorney-in-Fact	06/03/2026
	** 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)