Sec Form 3 Filing - Ladwa Akshay @ Energy Vault Holdings, Inc. - 2023-05-25

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 Ladwa Akshay 2. Issuer Name and Ticker or Trading Symbol Energy Vault Holdings, Inc. [ NRGV] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Engineering Officer (Last) (First) (Middle) 4360 PARK TERRACE DRIVE,, SUITE 100 3. Date of Earliest Transaction (MM/DD/YY) 05/25/2023 (Street) WESTLAKE VILLAGE, CA91361 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 1,148,060 ( 1 ) 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 Stock Option $ 1.86 ( 2 ) 05/19/2030 Common Stock 600,000 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Ladwa Akshay 4360 PARK TERRACE DRIVE, SUITE 100 WESTLAKE VILLAGE, CA91361 Chief Engineering Officer Signatures /s/ Timothy Maloche, Attorney-in-Fact 06/05/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Includes 918,758 restricted stock units (?RSUs?), which represent a contingent right to receive one share of Common Stock for each RSU. The original grant of RSUs vest as follows: (i) 508,013 RSUs vest with respect to 25% of the underlying shares on October 31, 2022 and as to 1/48th monthly thereafter; (ii) 535,000 RSUs vest with respect to 25% of the underlying shares on February 28, 2023 and as to 6.25% quarterly thereafter; and (iii) 200,000 RSUs vest with respect to 33.2% of the underlying shares on October 31, 2023 and as to 8.35% quarterly thereafter. As of May 25, 2023, a total of 94,953 shares of Common Stock were disposed of to cover tax obligations due upon vesting of 324,255 RSUs. ( 2 )The stock option vests in three substantially equal annual installments beginning on May 4, 2024.

Remarks: Exhibit 24- Power of Attorney

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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