Sec Form 4 Filing - Mukhija Manavdeep Singh @ Eagle Nuclear Energy Corp. - 2026-02-24

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

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Mukhija Manavdeep Singh 2. Issuer Name and Ticker or Trading Symbol Eagle Nuclear Energy Corp. [ NUCL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Executive Officer (Last) (First) (Middle) 5470 KIETZKE LANE, SUITE 300 3. Date of Earliest Transaction (MM/DD/YY) 02/24/2026 (Street) RENO, NV89511 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 Common Stock, par value $0.0001 per share 02/24/2026 A 314,793 A 314,793 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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Right to receive Earnout Shares ( 2 ) 02/24/2026 A 43,873 ( 2 ) ( 2 ) Common Stock, par value $0.0001 per share 43,873 ( 2 ) ( 3 ) ( 2 ) 43,873 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Mukhija Manavdeep Singh 5470 KIETZKE LANE SUITE 300 RENO, NV89511 X Chief Executive Officer Signatures /s/ Manavdeep Singh Mukhija 02/27/2026 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Reflects the issuance by Eagle Nuclear Energy Corp. (the "Issuer") on February 24, 2026, of 314,793 shares (the "Merger Consideration") of common stock, par value $0.0001 per share (the "Common Stock"), pursuant to the Amended and Restated Agreement and Plan of Merger, dated as of September 29, 2025 (as it may be amended, supplemented, or otherwise modified from time to time, the "Merger Agreement"), by and among Spring Valley Acquisition Corp. II, the Issuer, Spring Valley Merger Sub III, Inc., Spring Valley Merger Sub II, Inc., and Eagle Energy Metals Corp. ("Eagle"). The Merger Consideration was received in exchange for 1,428,566 shares of common stock of Eagle, representing an exchange ratio of 5.8347. ( 2 )On February 24, 2026, the Reporting Person became entitled to receive 43,873 shares of Common Stock (the "Earnout Shares") pursuant to an "earnout" provision in the Merger Agreement, in the event that the metrics described in the following footnote are satisfied during the five-year period following the closing (the "Closing Date") as contemplated in the Merger Agreement. ( 3 )In the event that the dollar volume-weighted average price ("VWAP") of the Common Stock equals or exceeds $16.00 per share for twenty (20) trading days within a period of thirty (30) consecutive trading days during the period beginning on the Closing Date and ending on the five-year anniversary of the Closing Date, the Reporting Person will be entitled to receive 43,873 Earnout Shares.

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