Sec Form 3 Filing - Engel Jacqueline F. @ NUSCALE POWER Corp - 2024-01-05

FORM 3 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 Engel Jacqueline F. 2. Issuer Name and Ticker or Trading Symbol NUSCALE POWER Corp [ SMR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Controller (Last) (First) (Middle) 12725 SW 66TH AVENUE, SUITE 107 3. Date of Earliest Transaction (MM/DD/YY) 01/05/2024 (Street) PORTLAND, OR97223 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 Class A Common Stock 1,007 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 Employee Stock Option (right to buy) $ 3.24 ( 1 ) 08/01/2026 Class A Common Stock 2,598 D Employee Stock Option (right to buy) $ 3.41 ( 2 ) 07/28/2027 Class A Common Stock 1,732 D Employee Stock Option (right to buy) $ 3.41 ( 3 ) 02/14/2028 Class A Common Stock 7,794 D Employee Stock Option (right to buy) $ 6.41 ( 4 ) 03/31/2031 Class A Common Stock 6,062 D Restricted Stock Unit ( 5 ) $ 0 ( 6 ) ( 6 ) Class A Common Stock 3,268 D Restricted Stock Unit ( 5 ) $ 0 ( 7 ) ( 7 ) Class A Common Stock 7,112 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Engel Jacqueline F. 12725 SW 66TH AVENUE, SUITE 107 PORTLAND, OR97223 Controller Signatures Patrick C. Cannon, attorney-in-fact for Jacqueline F. Engel 01/11/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The option became exercisable for 25% of the shares on August 1, 2017, and for 1/48th of the shares at the end of each one-month period thereafter, so that the option became fully exercisable on April 1, 2020. ( 2 )The option became exercisable for 25% of the shares on May 1, 2018, and for 1/48th of the shares at the end of each one-month period thereafter, so that the option became fully exercisable on May 1, 2021. ( 3 )The option became exercisable for 25% of the shares on March 1, 2018, and for 1/48th of the shares at the end of each one-month period thereafter, so that the option became fully exercisable on March 1, 2021. ( 4 )The option became exercisable for 25% of the shares on April 1, 2021, and for 1/48th of the shares at the end of each one-month period thereafter, so that the option will become fully exercisable on April 1, 2024. ( 5 )Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. ( 6 )The restricted stock units were granted July 8, 2022 and will vest in three annual installments beginning July 8, 2023. All restricted stock units that are not vested and nonforfeitable will be forfeited to the Company upon termination of employment or service. ( 7 )The restricted stock units were granted February 28, 2023 and will vest in three annual installments beginning February 28, 2024. All restricted stock units that are not vested and nonforfeitable will be forfeited to the Company upon termination of employment or service.

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).

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