X-Energy, Inc. (XE)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-01 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: X-Energy, Inc. (XE) CIK: 0002088896 --- Reporting Owner --- Name: Gross Daniel Andrew CIK: 0001735871 Role: Officer (See Remarks) --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Common Stock Date: 2026-06-01 | Code: A (Grant or award) Shares: +246,665 | Price: $0.00 Shares Owned After: 1,025,183 | Ownership: D (Direct) Footnotes: [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. --- Derivative Transactions --- [Transaction #1] Security: Stock Option Date: 2026-06-01 | Code: A (Grant or award) Shares: +332,615 | Price: $0.00 Exercise Price: $26.44 Exercisable: N/A | Expires: 2036-06-01 Shares Owned After: 1,605,770 | Ownership: D (Direct) Footnotes: [F2] The stock options vest in four substantially equal annual installments beginning on December 23, 2026. --- Footnotes (Complete Index) --- 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. F2: The stock options vest in four substantially equal annual installments beginning on December 23, 2026. --- Signature --- /s/ /s/ Carter Lawson, Attorney-in-Fact (2026-06-03)