Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 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

(Print or Type Responses)

1. Name and Address of Reporting Person * Ares Partners Holdco LLC 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 _____ Officer (give title below) __X__ Other (specify below) Former 10% Owner (Last) (First) (Middle) C/O ARES MANAGEMENT LLC,, 1800 AVENUE OF THE STARS, SUITE 1400 3. Date of Earliest Transaction (Month/Day/Year) 04/27/2026 (Street) LOS ANGELES, CA 90067 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) 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

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	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 control number.		SEC 1474 (9-02)

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 Underlying Securities (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 of Derivative Security: 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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Ares Partners Holdco LLC C/O ARES MANAGEMENT LLC, 1800 AVENUE OF THE STARS, SUITE 1400 LOS ANGELES, CA 90067				Former 10% Owner
Ares X-Energy Holdings LP C/O ARES MANAGEMENT LLC, 245 PARK AVENUE, 44TH FLOOR NEW YORK, NY 10167				Former 10% Owner
ACIP Investments Pooling LLC - Series 31 C/O ARES MANAGEMENT LLC, 1800 AVENUE OF THE STARS, SUITE 1400 LOS ANGELES, CA 90067				Former 10% Owner

Signatures

Ares Partners Holdco LLC By: /s/ Anton Feingold; Authorized Signatory		04/29/2026
**Signature of Reporting Person		Date
Ares X-Energy Holdings LP By: /s/ Anton Feingold; Authorized Signatory		04/29/2026
**Signature of Reporting Person		Date
ACIP Investments Pooling LLC - Series 31 By: /s/ Noah Ehrenpreis; Authorized Signatory		04/29/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
Remarks: Upon the closing of the initial public offering of X-Energy, Inc. (the "Issuer") on April 27, 2026, the reporting persons' ownership of the Issuer's Class A common stock was diluted below 10% and the reporting persons are therefore no longer subject to Section 16 of the Securities Exchange Act of 1934, as amended. This exit report is made on a voluntary basis as the reporting persons have not acquired or disposed of any additional securities of the Issuer.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure. Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.