NRGV

SEC source: 0001104659-22-020664 · tm226292-2_4seq1.xml · nonDerivative · entry 2

Paulson Larry · CIK 0001509559 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 609,256

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: Upon the consummation of the issuer's business combination with Energy Vault, Inc. on February 11, 2022, 534,256 shares of Class B common stock owned by the Trust automatically converted into an equal number of shares of Class A common stock.

F2 · ownership.nature: The shares are owned directly by the Larry M and Gretchen V Paulson Family Trust dated September 4, 2019 and any amendments thereto (the "Trust"). Mr. Paulson is a trustee of the Trust. Mr. Paulson disclaims beneficial ownership of the securities held by the Trust except to the extent of his pecuniary interest therein.

SEC source: 0001104659-22-020664 · tm226292-2_4seq1.xml · nonDerivative · entry 1

Paulson Larry · CIK 0001509559 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 75,000

F1 · shares: Represents 75,000 shares of Class A common stock purchased from the issuer in a private placement transaction for $10.00 per share. In connection with the issuer's business combination with Energy Vault, Inc., the issuer changed its name to Energy Vault Holdings, Inc.

F2 · ownership.nature: The shares are owned directly by the Larry M and Gretchen V Paulson Family Trust dated September 4, 2019 and any amendments thereto (the "Trust"). Mr. Paulson is a trustee of the Trust. Mr. Paulson disclaims beneficial ownership of the securities held by the Trust except to the extent of his pecuniary interest therein.

SEC source: 0001104659-22-020672 · tm226292-7_4seq1.xml · derivative · entry 5

Klaff Hersch · CIK 0001654577 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Class A Common Stock · 718,222 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F4 · shares: Upon the consummation of the issuer's business combination with Energy Vault, Inc. on February 11, 2022, 598,518 shares of Class B common stock owned by directly by KNC I LLC and 119,704 shares of Class B common stock owned directly by KNC II LLC automatically converted into an equal number of shares of Class A common stock.

F6 · derivative.exercise_date: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F6 · derivative.expiration_date: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F5 · ownership.nature: The shares are owned directly by KNC I LLC and KNC II LLC. Mr. Klaff has control over the investment manager of KNC I LLC. Mr. Klaff has control over the manager for KNC II LLC. He disclaims beneficial ownership of the securities held by KNC I LLC and KNC II LLC except to the extent of his pecuniary interest therein.

SEC source: 0001104659-22-020672 · tm226292-7_4seq1.xml · derivative · entry 4

Klaff Hersch · CIK 0001654577 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 718,222

Underlying: Class A Common Stock · 580,606 shares

Expires not disclosed

F6 · derivative.exercise_price: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F7 · shares: Represents the automatic forfeiture of 483,839 shares of Class B common stock by KNC I LLC and 96,767 shares of Class B common stock by KNC II LLC for no additional consideration in connection with the closing of the issuer's business combination with Energy Vault, Inc.

F6 · derivative.exercise_date: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F6 · derivative.expiration_date: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F5 · ownership.nature: The shares are owned directly by KNC I LLC and KNC II LLC. Mr. Klaff has control over the investment manager of KNC I LLC. Mr. Klaff has control over the manager for KNC II LLC. He disclaims beneficial ownership of the securities held by KNC I LLC and KNC II LLC except to the extent of his pecuniary interest therein.

SEC source: 0001104659-22-020672 · tm226292-7_4seq1.xml · nonDerivative · entry 3

Klaff Hersch · CIK 0001654577 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 798,222

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · shares: Upon the consummation of the issuer's business combination with Energy Vault, Inc. on February 11, 2022, 598,518 shares of Class B common stock owned by directly by KNC I LLC and 119,704 shares of Class B common stock owned directly by KNC II LLC automatically converted into an equal number of shares of Class A common stock.

F5 · ownership.nature: The shares are owned directly by KNC I LLC and KNC II LLC. Mr. Klaff has control over the investment manager of KNC I LLC. Mr. Klaff has control over the manager for KNC II LLC. He disclaims beneficial ownership of the securities held by KNC I LLC and KNC II LLC except to the extent of his pecuniary interest therein.

SEC source: 0001104659-22-020672 · tm226292-7_4seq1.xml · nonDerivative · entry 2

Klaff Hersch · CIK 0001654577 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 80,000

F2 · shares: Represents 80,000 shares purchased by the Klaff Family Foundation from the issuer in a private placement transaction for $10.00 per share.

F3 · ownership.nature: The shares are owned directly by the Klaff Family Foundation. Mr. Klaff is the President of the Klaff Family Foundation. Mr. Klaff disclaims beneficial ownership of the securities held by the Klaff Family Foundation except to the extent of his pecuniary interest therein.

SEC source: 0001104659-22-020672 · tm226292-7_4seq1.xml · nonDerivative · entry 1

Klaff Hersch · CIK 0001654577 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 170,000

F1 · shares: Represents (i) 140,000 shares of Class A common stock purchased by Hersch M. Klaff IRA and (ii) 30,000 shares of Class A common stock purchased by Hersch M. Klaff Roth IRA from the issuer in a private placement transaction for $10.00 per share. In connection with the issuer's business combination with Energy Vault, Inc., the issuer changed its name to Energy Vault Holdings, Inc.

SEC source: 0001104659-22-020669 · tm226292-5_4seq1.xml · derivative · entry 5

Goodman Heather · CIK 0001812066 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 161,285 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F4 · shares: Upon the consummation of the issuer's business combination with Energy Vault, Inc. on February 11, 2022, 161,285 shares of Class B common stock owned by Heather Goodman and Doug Raetz as tenants in common automatically converted into an equal number of shares of Class A common stock.

F5 · derivative.exercise_date: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F5 · derivative.expiration_date: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

SEC source: 0001104659-22-020669 · tm226292-5_4seq1.xml · derivative · entry 4

Goodman Heather · CIK 0001812066 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 161,285

Underlying: Class A Common Stock · 130,382 shares

Expires not disclosed

F5 · derivative.exercise_price: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F6 · shares: Represents the automatic forfeiture of 130,382 shares of Class B common stock for no additional consideration in connection with the closing of the issuer's business combination with Energy Vault, Inc.

F5 · derivative.exercise_date: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F5 · derivative.expiration_date: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

SEC source: 0001104659-22-020669 · tm226292-5_4seq1.xml · nonDerivative · entry 3

Goodman Heather · CIK 0001812066 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 191,285

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · shares: Upon the consummation of the issuer's business combination with Energy Vault, Inc. on February 11, 2022, 161,285 shares of Class B common stock owned by Heather Goodman and Doug Raetz as tenants in common automatically converted into an equal number of shares of Class A common stock.

SEC source: 0001104659-22-020669 · tm226292-5_4seq1.xml · nonDerivative · entry 2

Goodman Heather · CIK 0001812066 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 220,000

F2 · shares: Represents 220,000 shares of Class A common stock purchased from the issuer by True VC LLC - Series 15 in a private placement transaction for $10.00 per share.

F3 · ownership.nature: The shares are owned directly by True VC LLC - Series 15. Ms. Goodman is a managing member of True VC LLC - Series 15. Ms. Goodman disclaims beneficial ownership of the securities held by True VC LLC - Series 15 except to the extent of her pecuniary interest therein.

SEC source: 0001104659-22-020669 · tm226292-5_4seq1.xml · nonDerivative · entry 1

Goodman Heather · CIK 0001812066 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

F1 · shares: Represents 30,000 shares of Class A common stock purchased from the issuer by Heather Goodman and Doug Raetz as tenants in common in a private placement transaction for $10.00 per share. In connection with the issuer's business combination with Energy Vault, Inc., the issuer changed its name to Energy Vault Holdings, Inc.

SEC source: 0001104659-22-020667 · tm226292-4_4seq1.xml · derivative · entry 4

Sznaider Ronald J. · CIK 0001842929 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 100,802 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F3 · shares: Upon the consummation of the issuer's business combination with Energy Vault, Inc. on February 11, 2022, 100,802 shares of Class B common stock owned by Mr. Sznaider automatically converted into an equal number of shares of Class A common stock.

F4 · derivative.exercise_date: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F4 · derivative.expiration_date: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

SEC source: 0001104659-22-020667 · tm226292-4_4seq1.xml · derivative · entry 3

Sznaider Ronald J. · CIK 0001842929 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,802

Underlying: Class A Common Stock · 81,490 shares

Expires not disclosed

F4 · derivative.exercise_price: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F5 · shares: Represents the automatic forfeiture of 81,490 shares of Class B common stock for no additional consideration in connection with the closing of the issuer's business combination with Energy Vault, Inc.

F4 · derivative.exercise_date: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F4 · derivative.expiration_date: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

SEC source: 0001104659-22-020667 · tm226292-4_4seq1.xml · nonDerivative · entry 2

Sznaider Ronald J. · CIK 0001842929 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,802

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: Upon the consummation of the issuer's business combination with Energy Vault, Inc. on February 11, 2022, 100,802 shares of Class B common stock owned by Mr. Sznaider automatically converted into an equal number of shares of Class A common stock.

SEC source: 0001104659-22-020667 · tm226292-4_4seq1.xml · nonDerivative · entry 1

Sznaider Ronald J. · CIK 0001842929 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 50,000

F1 · shares: Represents 50,000 shares of Class A common stock purchased from the issuer in a private placement transaction for $10.00 per share. In connection with the issuer's business combination with Energy Vault, Inc., the issuer changed its name to Energy Vault Holdings, Inc.

F2 · ownership.nature: The shares are owned directly by the Ronald J. Sznaider and Michele A. Sznaider Living Trust dated August 14, 2020, and any amendments thereto (the "Trust"). Mr. Sznaider is a trustee of the Trust. Mr. Sznaider disclaims beneficial ownership of the securities held by the Trust except to the extent of his pecuniary interest therein.

SEC source: 0001104659-22-020662 · tm226292-1_4seq1.xml · derivative · entry 4

Foster Jeffrey D · CIK 0001843040 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Class A Common Stock · 534,256 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F3 · shares: Upon the consummation of the issuer's business combination with Energy Vault, Inc. on February 11, 2022, 534,256 shares of Class B common stock owned by New Frontier LLC automatically converted into an equal number of shares of Class A common stock.

F5 · derivative.exercise_date: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F5 · derivative.expiration_date: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F4 · ownership.nature: The shares are owned directly by New Frontier LLC. Mr. Foster is a manager of New Frontier LLC. He disclaims beneficial ownership of the securities held by New Frontier LLC except to the extent of his pecuniary interest therein.

SEC source: 0001104659-22-020662 · tm226292-1_4seq1.xml · derivative · entry 3

Foster Jeffrey D · CIK 0001843040 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 534,256

Underlying: Class A Common Stock · 431,890 shares

Expires not disclosed

F5 · derivative.exercise_price: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F6 · shares: Represents the automatic forfeiture of 431,890 shares of Class B common stock for no additional consideration in connection with the closing of the issuer's business combination with Energy Vault, Inc.

F5 · derivative.exercise_date: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F5 · derivative.expiration_date: As described in the issuer's registration statement on Form S-4 (File No. 333-260307) under the heading "Description of Securities--Founder Shares," shares of Class B common stock, par value $0.0001 per share, of the issuer automatically convert into shares of Class A common stock, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustment, and have no expiration date.

F4 · ownership.nature: The shares are owned directly by New Frontier LLC. Mr. Foster is a manager of New Frontier LLC. He disclaims beneficial ownership of the securities held by New Frontier LLC except to the extent of his pecuniary interest therein.

SEC source: 0001104659-22-020662 · tm226292-1_4seq1.xml · nonDerivative · entry 2

Foster Jeffrey D · CIK 0001843040 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 809,256

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: Upon the consummation of the issuer's business combination with Energy Vault, Inc. on February 11, 2022, 534,256 shares of Class B common stock owned by New Frontier LLC automatically converted into an equal number of shares of Class A common stock.

F4 · ownership.nature: The shares are owned directly by New Frontier LLC. Mr. Foster is a manager of New Frontier LLC. He disclaims beneficial ownership of the securities held by New Frontier LLC except to the extent of his pecuniary interest therein.

SEC source: 0001104659-22-020662 · tm226292-1_4seq1.xml · nonDerivative · entry 1

Foster Jeffrey D · CIK 0001843040 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 275,000

F1 · shares: Represents 275,000 shares of Class A common stock purchased from the issuer in a private placement transaction for $10.00 per share. In connection with the issuer's business combination with Energy Vault, Inc., the issuer changed its name to Energy Vault Holdings, Inc.

F2 · ownership.nature: The shares are owned directly by the Jeffrey Foster Living Trust (the "Trust"). Mr. Foster is a trustee of the Trust. Mr. Foster disclaims beneficial ownership of the securities held by the Trust except to the extent of his pecuniary interest therein.

SEC source: 0001104659-22-023991 · tm225795-19_4seq1.xml · nonDerivative · entry 1

GROSS WILLIAM · CIK 0001079818 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Idealab Studio, LLC

Disclosed balance after: 15,583,548

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F2 · price: The Reporting Person received shares of Common Stock in exchange for 2,300,664 shares of common stock in Energy Vault. On the effective date of the Merger, the closing price of the Issuer's Common Stock was $11.55 per share. The Reporting Person disclaims any such beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0001104659-22-023993 · tm225795-22_4seq1.xml · nonDerivative · entry 3

Piconi Robert · CIK 0001898769 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Piconi Family 2021 Delaware Trust

Disclosed balance after: 4,307,946

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F4 · price: The Reporting Person received shares of Common Stock in exchange for 636,000 shares of common stock in Energy Vault. On the effective date of the Merger, the closing price of the Issuer's Common Stock was $11.55 per share.

SEC source: 0001104659-22-023993 · tm225795-22_4seq1.xml · nonDerivative · entry 2

Piconi Robert · CIK 0001898769 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Piconi 2021 Delaware Trust

Disclosed balance after: 4,307,946

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F3 · price: The Reporting Person received shares of Common Stock in exchange for 636,000 shares of common stock in Energy Vault. On the effective date of the Merger, the closing price of the Issuer's Common Stock was $11.55 per share.

SEC source: 0001104659-22-023993 · tm225795-22_4seq1.xml · nonDerivative · entry 1

Piconi Robert · CIK 0001898769 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,225,612

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F2 · price: The Reporting Person received shares of Common Stock in exchange for 919,113 shares of common stock in Energy Vault. On the effective date of the Merger, the closing price of the Issuer's Common Stock was $11.55 per share.

SEC source: 0001104659-22-023992 · tm225795-20_4seq1.xml · nonDerivative · entry 2

Huque Tahsinul Zia · CIK 0001794630 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Prime Movers Growth Fund I, LP

Disclosed balance after: 6,217,287

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F3 · price: The Reporting Person received shares of Common Stock in exchange for 917,884 shares of common stock in Energy Vault. On the effective date of the Merger, the closing price of the Issuer's Common Stock was $11.55 per share.

SEC source: 0001104659-22-023992 · tm225795-20_4seq1.xml · nonDerivative · entry 1

Huque Tahsinul Zia · CIK 0001794630 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Energy Vault PML SPV 1 LP

Disclosed balance after: 1,245,077

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F2 · price: The Reporting Person received shares of Common Stock in exchange for 183,816 shares of common stock in Energy Vault. On the effective date of the Merger, the closing price of the Issuer's Common Stock was $11.55 per share.

SEC source: 0001104659-22-024002 · tm225795-29_4seq1.xml · derivative · entry 1

Wuttke Andrea · CIK 0001909082 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 327,837

Underlying: Common Stock · 327,837 shares

Expires not disclosed

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F2 · derivative.exercise_price: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 48,400 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 50% of the RSUs on the closing of the Merger, with respect to 25% of the RSUs on April 30, 2022, and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

F2 · derivative.exercise_date: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 48,400 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 50% of the RSUs on the closing of the Merger, with respect to 25% of the RSUs on April 30, 2022, and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

F2 · derivative.expiration_date: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 48,400 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 50% of the RSUs on the closing of the Merger, with respect to 25% of the RSUs on April 30, 2022, and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

SEC source: 0001104659-22-023999 · tm225795-27_4seq1.xml · derivative · entry 1

Icoren Goncagul · CIK 0001908956 · Chief People Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 135,470

Underlying: Common Stock · 135,470 shares

Expires not disclosed

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F2 · derivative.exercise_price: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 20,000 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 25% of the RSUs on September 7, 2022, and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

F2 · derivative.exercise_date: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 20,000 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 25% of the RSUs on September 7, 2022, and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

F2 · derivative.expiration_date: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 20,000 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 25% of the RSUs on September 7, 2022, and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

SEC source: 0001104659-22-024000 · tm225795-28_4seq1.xml · derivative · entry 1

Wiese Christopher · CIK 0001908958 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 169,337

Underlying: Common Stock · 169,337 shares

Expires not disclosed

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F2 · derivative.exercise_price: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 25,000 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 50% of the RSUs on the closing of the Merger, with respect to 25% of the RSUs on April 30, 2022, and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

F2 · derivative.exercise_date: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 25,000 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 50% of the RSUs on the closing of the Merger, with respect to 25% of the RSUs on April 30, 2022, and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

F2 · derivative.expiration_date: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 25,000 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 50% of the RSUs on the closing of the Merger, with respect to 25% of the RSUs on April 30, 2022, and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

SEC source: 0001104659-22-023996 · tm225795-24_4seq1.xml · nonDerivative · entry 1

Terruzzin Marco · CIK 0001908817 · Chief Product Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 609,615

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F2 · price: In connection with the Merger, the Reporting Person received shares of Common Stock of Issuer pursuant to a restricted Stock Award (the "RSA") in exchange for, and pursuant to the assumption and conversion of, 90,000 shares of restricted common stock of Energy Vault. The RSA is subject to a risk of forfeiture, which was designed to lapse upon the satisfaction of both a liquidity-event requirement and a service-based requirement. The liquidity event requirement was satisfied upon the closing of the Merger. The risk of forfeiture applicable to the shares subject to the RSA will accordingly lapse or already lapsed upon the satisfaction of the service-based requirement as follows: with respect to 50% of the shares underlying the RSA upon the closing of the Merger, and with respect to 1/48th of the shares underlying the RSA on August 23, 2020 and each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

SEC source: 0001104659-22-023998 · tm225795-26_4seq1.xml · derivative · entry 1

Espy Richard · CIK 0001908954 · CIO, VP of Software Enablement

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 135,470

Underlying: Common Stock · 135,470 shares

Expires not disclosed

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F2 · derivative.exercise_price: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 20,000 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 25% of the RSUs on September 7, 2022, and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

F2 · derivative.exercise_date: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 20,000 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 25% of the RSUs on September 7, 2022, and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

F2 · derivative.expiration_date: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 20,000 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 25% of the RSUs on September 7, 2022, and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

SEC source: 0001104659-22-023995 · tm225795-23_4seq1.xml · derivative · entry 1

Jung John G · CIK 0001911137 · President of EVS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 677,350

Underlying: Common Stock · 677,350 shares

Expires not disclosed

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F2 · derivative.exercise_price: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 100,000 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 25% of the RSUs on October 11, 2022, and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

F2 · derivative.exercise_date: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 100,000 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 25% of the RSUs on October 11, 2022, and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

F2 · derivative.expiration_date: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 100,000 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 25% of the RSUs on October 11, 2022, and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

SEC source: 0001104659-22-023979 · tm225795-18_4seq1.xml · nonDerivative · entry 6

Elkus Henry · CIK 0001908861 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by EN Fund I, A Series of Helena Special Investments AL Ventures, LP

Disclosed balance after: 111,904

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F7 · price: The Reporting Person received shares of Common Stock in exchange for 16,521 shares of common stock in Energy Vault. On the effective date of the Merger, the closing price of the Issuer's Common Stock was $11.55 per share.

SEC source: 0001104659-22-023979 · tm225795-18_4seq1.xml · nonDerivative · entry 5

Elkus Henry · CIK 0001908861 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by HSI Puma LLC

Disclosed balance after: 1,190,327

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F6 · price: The Reporting Person received shares of Common Stock in exchange for 175,733 shares of common stock in Energy Vault. On the effective date of the Merger, the closing price of the Issuer's Common Stock was $11.55 per share.

SEC source: 0001104659-22-023979 · tm225795-18_4seq1.xml · nonDerivative · entry 4

Elkus Henry · CIK 0001908861 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by HSI EV Brasil LLC

Disclosed balance after: 233,455

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F5 · price: The Reporting Person received shares of Common Stock in exchange for 34,466 shares of common stock in Energy Vault. On the effective date of the Merger, the closing price of the Issuer's Common Stock was $11.55 per share.

SEC source: 0001104659-22-023979 · tm225795-18_4seq1.xml · nonDerivative · entry 3

Elkus Henry · CIK 0001908861 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by HSI Energy Vault II LLC

Disclosed balance after: 1,867,677

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F4 · price: The Reporting Person received shares of Common Stock in exchange for 275,733 shares of common stock in Energy Vault. On the effective date of the Merger, the closing price of the Issuer's Common Stock was $11.55 per share.

SEC source: 0001104659-22-023979 · tm225795-18_4seq1.xml · nonDerivative · entry 2

Elkus Henry · CIK 0001908861 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by HSI Energy Vault I LLC

Disclosed balance after: 4,715,887

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F3 · price: The Reporting Person received shares of Common Stock in exchange for 696,226 shares of common stock in Energy Vault. On the effective date of the Merger, the closing price of the Issuer's Common Stock was $11.55 per share.

SEC source: 0001104659-22-023979 · tm225795-18_4seq1.xml · nonDerivative · entry 1

Elkus Henry · CIK 0001908861 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Helena ZePak EV LLC

Disclosed balance after: 1,608,009

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F2 · price: The Reporting Person received shares of Common Stock in exchange for 237,397 shares of common stock in Energy Vault. On the effective date of the Merger, the closing price of the Issuer's Common Stock was $11.55 per share.

SEC source: 0001104659-22-023978 · tm225795-21_4seq1.xml · derivative · entry 2

Pedretti Andrea · CIK 0001909079 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,343,407

Underlying: Common Stock · 2,343,407 shares

Expires not disclosed

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F3 · derivative.exercise_price: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 345,967 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 100% of the RSUs on the closing of the Merger, with respect to 25% of the RSUs vest on July 19, 2020 and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

F3 · derivative.exercise_date: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 345,967 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 100% of the RSUs on the closing of the Merger, with respect to 25% of the RSUs vest on July 19, 2020 and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

F3 · derivative.expiration_date: In connection with the Merger, the Reporting Person received restricted stock units ("RSUs") in Issuer in exchange for, and pursuant to the assumption and conversion of, 345,967 restricted stock units of Energy Vault. Subject to the satisfaction of both a liquidity event requirement and service-based requirement, each RSU represents the contingent right to receive one share of the Issuer's Common Stock. The liquidity event requirement was satisfied upon the closing of the Merger. The RSUs will accordingly vest upon the satisfaction of the service-based requirement, which provides that the RSUs will vest or have vested as follows: with respect to 100% of the RSUs on the closing of the Merger, with respect to 25% of the RSUs vest on July 19, 2020 and with respect to 1/48th of the RSUs each month thereafter, subject to the Reporting Person's continuous service with the Issuer through each vesting date.

SEC source: 0001104659-22-023978 · tm225795-21_4seq1.xml · nonDerivative · entry 1

Pedretti Andrea · CIK 0001909079 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,217,712

F1 · security: In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. ("Energy Vault Holdings") (the "Issuer"), NCCII Merger Corp. ("Merger Sub"), and Energy Vault, Inc. ("Energy Vault"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the "Merger").

F2 · price: The Reporting Person received shares of Common Stock in exchange for 179,776 shares of common stock in Energy Vault. On the effective date of the Merger, the closing price of the Issuer's Common Stock was $11.55 per share.

SEC source: 0001104659-21-014054 · tm212024-17_4seq1.xml · derivative · entry 1

LAIKIN ROBERT J · CIK 0000937221 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 556,500

Underlying: Class A Common Stock · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.exercise_date: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.expiration_date: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.underlying_shares: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

SEC source: 0001104659-21-014089 · tm212024-23_4seq1.xml · derivative · entry 1

DONARGO VINCENT · CIK 0001339176 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 210,000

Underlying: Class A Common Stock · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.exercise_date: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.expiration_date: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.underlying_shares: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F2 · ownership.nature: The warrants are owned directly by V Donargo LLC. Mr. Donargo is a manager of V Donargo LLC. He disclaims beneficial ownership of the securities held by V Donargo LLC except to the extent of his pecuniary interest therein.

SEC source: 0001104659-21-014074 · tm212024-20_4seq1.xml · derivative · entry 1

Paulson Larry · CIK 0001509559 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 556,500

Underlying: Class A Common Stock · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.exercise_date: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.expiration_date: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.underlying_shares: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F2 · ownership.nature: The warrants are owned directly by the Larry M and Gretchen V Paulson Family Trust dated September 4, 2019 and any amendments thereto (the "Trust"). Mr. Paulson is a trustee of the Trust. He disclaims beneficial ownership of the securities held by the Trust except to the extent of his pecuniary interest therein.

SEC source: 0001104659-21-014084 · tm212024-22_4seq1.xml · derivative · entry 1

Klaff Hersch · CIK 0001654577 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 748,125

Underlying: Class A Common Stock · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.exercise_date: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.expiration_date: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.underlying_shares: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F2 · ownership.nature: Represents (i) 623,437 warrants owned directly by KNC I LLC and (ii) 124,688 warrants owned directly by KNC II LLC. Mr. Klaff has control over the investment manager of KNC I LLC. Mr. Klaff has control over the manager for KNC II LLC. He disclaims beneficial ownership of the securities held by KNC I LLC and KNC II LLC except to the extent of his pecuniary interest therein.

SEC source: 0001104659-21-014065 · tm212024-19_4seq1.xml · derivative · entry 1

Goodman Heather · CIK 0001812066 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 168,000

Underlying: Class A Common Stock · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.exercise_date: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.expiration_date: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.underlying_shares: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F2 · ownership.direct: The warrants are owned directly by Heather Goodman and Doug Raetz as tenants in common.

SEC source: 0001104659-21-014077 · tm212024-21_4seq1.xml · derivative · entry 1

Foster Jeffrey D · CIK 0001843040 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 556,500

Underlying: Class A Common Stock · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.exercise_date: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.expiration_date: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.underlying_shares: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F2 · ownership.nature: The warrants are owned directly by New Frontier LLC. Mr. Foster is a manager of New Frontier LLC. He disclaims beneficial ownership of the securities held by New Frontier LLC except to the extent of his pecuniary interest therein.

SEC source: 0001104659-21-014062 · tm212024-18_4seq1.xml · derivative · entry 1

Sznaider Ronald J. · CIK 0001842929 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 105,000

Underlying: Class A Common Stock · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.exercise_date: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.expiration_date: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.

F1 · derivative.underlying_shares: Each warrant will become exercisable 30 days after the completion of the Issuer's initial business combination. Each warrant will expire five years after the completion of the Issuer's initial business combination. Each warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising or reorganization transactions.