NRGV / Energy Vault Holdings, Inc. - تصريحات هيئة الأوراق المالية والبورصات، التقرير السنوي، بيان الوكيل

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US ˙ NYSE ˙ US29280W1099

الإحصائيات الأساسية
LEI 549300KMBUKUUIQ6FN34
CIK 1828536
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Energy Vault Holdings, Inc.
SEC Filings (Chronological Order)
توفر هذه الصفحة قائمة كاملة ومرتبة ترتيبًا زمنيًا لتصريحات هيئة الأوراق المالية والبورصات، باستثناء تصريحات الملكية التي نقدمها في مكان آخر.
September 5, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 29, 2025 Energy Vault Hold

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 29, 2025 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commis

September 3, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 2, 2025 Energy Vault Ho

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 2, 2025 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Comm

September 3, 2025 EX-99.1

Energy Vault Receives Confirmation Letter from the NYSE Regarding Compliance with Continued Listing Criteria Driven by Higher Share Price Trading Range

Exhibit 99.1 Energy Vault Receives Confirmation Letter from the NYSE Regarding Compliance with Continued Listing Criteria Driven by Higher Share Price Trading Range WESTLAKE VILLAGE, Calif. – September 3, 2025 – Energy Vault Holdings, Inc. (“Energy Vault” or the “Company”) (NYSE: NRGV), a global energy storage company, today announced that it received written notice from the New York Stock Exchang

August 11, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 7, 2025 Energy Vault Holdi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 7, 2025 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commiss

August 11, 2025 EX-99.1

Energy Vault Enters into Exclusive Agreement for $300 million Preferred Equity Investment to launch “Asset Vault”, Accelerating the execution of 1.5GW of Global Energy Storage Projects under the Company’s IPP Build, Own and Operate Strategy Capital f

Exhibit 99.1 Energy Vault Enters into Exclusive Agreement for $300 million Preferred Equity Investment to launch “Asset Vault”, Accelerating the execution of 1.5GW of Global Energy Storage Projects under the Company’s IPP Build, Own and Operate Strategy Capital from a leading, multi-billion-dollar infrastructure fund expected to enable over $1.0 Billion in CapEx spending for 1.5 GW of projects und

August 8, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 7, 2025 Energy Vault Holdi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 7, 2025 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commiss

August 8, 2025 EX-10.4

Equity Purchase Agreement, dated August 6, 2025, by and between Energy Vault Holdings, Inc. and Helena Global Investment Opportunities I LTD

Exhibit 10.4 PURCHASE AGREEMENT THIS PURCHASE AGREEMENT (this “Agreement”), dated as of August 6, 2025, is made by and between HELENA GLOBAL INVESTMENT OPPORTUNITIES I LTD. (the “Investor”), and ENERGY VAULT HOLDINGS, INC.,, a Delaware corporation (the “Company”). WHEREAS, the parties desire that, upon the terms and subject to the conditions contained herein, the Company shall have the right to is

August 8, 2025 EX-99.1

Energy Vault Secures Final FIRB Approval and Completes Acquisition of 125 MW/1,000 MWh Stoney Creek BESS in Australia Stoney Creek represents first acquisition in Australia as part of Energy Vault’s global “Own & Operate” portfolio and reinforces lon

Exhibit 99.1 Energy Vault Secures Final FIRB Approval and Completes Acquisition of 125 MW/1,000 MWh Stoney Creek BESS in Australia Stoney Creek represents first acquisition in Australia as part of Energy Vault’s global “Own & Operate” portfolio and reinforces long-term commitment to Australia’s energy transition 125 MW/1,000 MWh Stoney Creek BESS set to support grid reliability and flexibility whi

August 8, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001

August 7, 2025 EX-99.1

Energy Vault Reports Second Quarter 2025 Financial Results Current Contract revenue backlog increased 47% to $954 million versus Q1, now up 120% year-to-date Q2 2025 Revenue increased 126% to $8.5 million compared to the prior year period Q2 2025 GAA

Exhibit 99.1 Energy Vault Reports Second Quarter 2025 Financial Results Current Contract revenue backlog increased 47% to $954 million versus Q1, now up 120% year-to-date Q2 2025 Revenue increased 126% to $8.5 million compared to the prior year period Q2 2025 GAAP gross profit of 29.6%, increasing 140% versus prior year to $2.5 million Q2 2025 Adjusted EBITDA improved 11% versus prior year, to a l

August 7, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 7, 2025 Energy Vault Holdi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 7, 2025 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commiss

August 6, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2025 Energy Vault Holdi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2025 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commiss

August 6, 2025 EX-99.1

Energy Vault Announces Contract with Consumers Energy for 75 MW/300 MWh Battery Energy Storage Projects in Michigan Energy Vault awarded project by Michigan’s largest energy provider to supply two battery energy storage systems (BESS), totaling 75 MW

Exhibit 99.1 Energy Vault Announces Contract with Consumers Energy for 75 MW/300 MWh Battery Energy Storage Projects in Michigan Energy Vault awarded project by Michigan’s largest energy provider to supply two battery energy storage systems (BESS), totaling 75 MW/300 MWh, in Iosco and Bay Counties Battery deliveries expected to commence in Q4 2025 enabling construction to begin in Q1 2026, with co

July 28, 2025 EX-10.1

Credit Agreement, dated as of July 23, 2025, by and among Cross Trails Energy Storage Project, LLC, Wilmington Trust, National Association, as administrative agent and collateral agent, and each of the lenders party thereto

crosstrails-creditagreem Exhibit 10.1 CREDIT AGREEMENT dated as of July 23, 2025, among CROSS TRAILS ENERGY STORAGE PROJECT, LLC, as Borrower, THE LENDERS PARTY HERETO FROM TIME TO TIME, as Lenders WILMINGTON TRUST, NATIONAL ASSOCIATION, as Administrative Agent and WILMINGTON TRUST, NATIONAL ASSOCIATION, as Collateral Agent $17,806,243.91 CERTAIN INFORMATION HAS BEEN EXCLUDED FROM THIS EXHIBIT BEC

July 28, 2025 EX-FILING FEES

Calculation of Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Energy Vault Holdings, Inc.

July 28, 2025 EX-99.1

Energy Vault Closes $18 Million Project Financing for 57 MW/114 MWh Cross Trails BESS Serving the Texas ERCOT Market $18 million project financing continues quarterly string of returning cash back to Energy Vault’s balance sheet following prior year

Exhibit 99.1 Energy Vault Closes $18 Million Project Financing for 57 MW/114 MWh Cross Trails BESS Serving the Texas ERCOT Market $18 million project financing continues quarterly string of returning cash back to Energy Vault’s balance sheet following prior year equity investments in new “Owned and Operate” assets The Cross Trails BESS, completed and brought to full commercial operation in June 20

July 28, 2025 S-8

As filed with the Securities and Exchange Commission on July 28, 2025

As filed with the Securities and Exchange Commission on July 28, 2025 Registration No.

July 28, 2025 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 23, 2025 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commissi

June 11, 2025 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 11, 2025 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commissi

June 11, 2025 EX-99.1

Energy Vault Achieves Major Strategic Milestone with Commercial Operation of Cross Trails BESS, Marking the First Asset Placed in Service Under “Own & Operate” Growth Strategy 57 MW two-hour battery energy storage system (BESS) in Snyder, Texas now p

Exhibit 99.1 Energy Vault Achieves Major Strategic Milestone with Commercial Operation of Cross Trails BESS, Marking the First Asset Placed in Service Under “Own & Operate” Growth Strategy 57 MW two-hour battery energy storage system (BESS) in Snyder, Texas now providing energy and ancillary services at highly attractive node in the Electric Reliability Council of Texas (ERCOT) region Project plac

June 5, 2025 EX-99.1

Energy Vault, Jupiter Power Announce Agreement for Additional 100 MW/200 MWh Battery Energy Storage System Building on a successful 2024 deployment, the new 100 MW/200 MWh BESS will enhance grid resiliency in the ERCOT region using Energy Vault’s B-V

Exhibit 99.1 Energy Vault, Jupiter Power Announce Agreement for Additional 100 MW/200 MWh Battery Energy Storage System Building on a successful 2024 deployment, the new 100 MW/200 MWh BESS will enhance grid resiliency in the ERCOT region using Energy Vault’s B-VAULT™ and VaultOS™ platform WESTLAKE VILLAGE, Calif. & AUSTIN, Texas – June 4, 2025 – Energy Vault Holdings Inc. (NYSE: NRGV) ("Energy Va

June 5, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 30, 2025 Energy Vault Holding

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 30, 2025 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commissio

May 30, 2025 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 30, 2025 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commissio

May 30, 2025 424B5

Up to $25,000,000 Energy Vault Holdings, Inc. Common Stock

Filed Pursuant to Rule 424(b)(5) Registration No. 333-273089 PROSPECTUS SUPPLEMENT (to Prospectus Dated July 20, 2023) Up to $25,000,000 Energy Vault Holdings, Inc. Common Stock This prospectus supplement relates to the issuance and sale of up to $25,000,000 of newly issued shares of our common stock, par value $0.001 per share (the “Shares”), that we may sell to Hudson Global Ventures, LLC (“Huds

May 13, 2025 EX-10.5

Equity Purchase Agreement, dated March 31, 2025, by and between Energy Vault Holdings, Inc. and Hudson Global Ventures, LLC

Execution Version EQUITY PURCHASE AGREEMENT This equity purchase agreement is entered into as of March 31, 2025 (this “Agreement”), by and between Energy Vault Holdings, Inc.

May 13, 2025 EX-10.3

Form of Restricted Stock Unit Award Grant Notice and Restricted Stock Unit Award Agreement under the 2025 Employment Inducement Award Plan

EXHIBIT 10.3 ENERGY VAULT HOLDINGS, INC. 2025 EMPLOYMENT INDUCEMENT AWARD PLAN NOTICE OF RESTRICTED STOCK UNIT AWARD You have been granted Restricted Stock Units (“RSUs”), each representing the right to receive one share of the Common Stock of Energy Vault Holdings, Inc. (the “Company”) on the following terms and conditions: Name of Recipient: «Name» Total Number of RSUs Granted: «TotalRSUs» Date

May 13, 2025 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING SEC File Number: 001-39982 CUSIP Number: 29280W109 (Check one): ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: March 31, 2025 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Tran

May 13, 2025 EX-10.1

2025 Employment Inducement Award Plan

Exhibit 10.1 ENERGY VAULT HOLDINGS, INC. 2025 EMPLOYMENT INDUCEMENT AWARD PLAN ARTICLE 1. INTRODUCTION. The purpose of the Plan is to promote the long-term success of the Company and the creation of stockholder value by (a) encouraging Eligible Individuals to focus on critical long- range corporate objectives, (b) encouraging the attraction and retention of Eligible Individuals with exceptional qu

May 13, 2025 EX-10.2

Form of Stock Option Grant Notice and Stock Option Agreement under the 2025 Employment Inducement Award Plan

Exhibit 10.2 ENERGY VAULT HOLDINGS, INC. 2025 EMPLOYMENT INDUCEMENT AWARD PLAN NOTICE OF STOCK OPTION GRANT You have been granted the following option to purchase shares of the Common Stock of Energy Vault Holdings, Inc. (the “Company”) on the terms and conditions set out below: Name of Optionee: «Name» Total Number of Shares: «TotalShares» Type of Option (U.S. Tax Status): Nonstatutory Stock Opti

May 13, 2025 EX-10.6

Form of Credit Agreement, dated May 12, 2025, by and between Energy Vault Holdings, Inc. and Crescent Cove Opportunity Lending, LLC

Exhibit 10.6 CREDIT AGREEMENT This CREDIT AGREEMENT is entered into as of May 12, 2025, among ENERGY VAULT HOLDINGS, INC., a Delaware corporation (the “Borrower”), the Guarantors (defined herein), the lenders identified on the signature pages hereof (each of such lenders, together with its successors and permitted assigns, a “Lender”, and collectively, the “Lenders”), and CRESCENT COVE OPPORTUNITY

May 13, 2025 EX-10.4

Note Purchase Agreement, dated April 4, 2025, by and between Calistoga Resiliency Center, LLC and Eagle Point Credit Management, LLC

Execution Version CALISTOGA RESILIENCY CENTER, LLC $27,826,365.17 12.50% Senior Secured Notes due April 4, 2032 NOTE PURCHASE AGREEMENT Dated April 4, 2025 Exhibit 10.4 i TABLE OF CONTENTS SECTION 1. AUTHORIZATION OF NOTES. ...................................................................1 SECTION 2. CONVERSION OF INDEBTEDNESS. .........................................................1 SECTION 3

May 13, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 00

May 12, 2025 EX-99.1

Energy Vault Reports First Quarter 2025 Financial Results Contract revenue backlog of $648 million, up 49% year-to-date on Australia and U.S. strength Q1 2025 Revenue increased by 10% versus prior year to $8.5 million driven by Australia projects and

Exhibit 99.1 Energy Vault Reports First Quarter 2025 Financial Results Contract revenue backlog of $648 million, up 49% year-to-date on Australia and U.S. strength Q1 2025 Revenue increased by 10% versus prior year to $8.5 million driven by Australia projects and India license Q1 2025 GAAP gross margin more than doubled to 57.1% versus prior year on favorable regional and revenue mix Quarter-end C

May 12, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 12, 2025 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commissio

April 21, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 16, 2025 Energy Vault Holdi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 16, 2025 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commiss

April 10, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant Filed by a Party other than the Registrant ¨ Preliminary Proxy Statement ¨ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ¨ Definitive Pr

April 10, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant Filed by a Party other than the Registrant ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Pr

April 1, 2025 EX-10.24

, 2025, by and between Calistoga Resiliency Center, LLC and Jeff

Execution Version US-DOCS\157730382.20 CREDIT AGREEMENT dated as of March 31, 2025, among CALISTOGA RESILIENCY CENTER, LLC, as Borrower, JEFFERIES FINANCE LLC, as Administrative Agent, Collateral Agent and Sole Lead Arranger, and THE LENDERS NAMED HEREIN as Lenders $27,826,365.17 Exhibit 10.24 TABLE OF CONTENTS PAGE US-DOCS\157730382.20 ARTICLE I DEFINITIONS AND ACCOUNTING TERMS...................

April 1, 2025 EX-19.1

Energy Vault Holdings, Inc. Insider Trading Policy

Exhibit 19.1 Energy Vault Holdings, Inc. Insider Trading Compliance Policy and Procedures Federal and state laws prohibit trading in the securities of a company while in possession of material nonpublic information and in breach of a duty of trust or confidence. These laws also prohibit anyone who is aware of material nonpublic information from providing this information to others who may trade. V

April 1, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-399

April 1, 2025 EX-10.8

Employment Agreement by and between Energy Vault, Inc. and Christopher Wiese, dated as of November 10, 2022

EMPLOYMENT AGREEMENT between Energy Vault, Inc. and Christopher Wiese This EMPLOYMENT AGREEMENT (this “Agreement”), dated as of November 10, 2022, is made between Energy Vault, Inc. (the “Company”) and Christopher Wiese (the “Executive”) (collectively referred to herein as the “Parties” or individually referred to as a “Party”). RECITALS (A) The Company and Executive are parties to that certain Of

April 1, 2025 EX-21.1

List of Subsidiaries of Energy Vault Holdings, Inc.

Exhibit 21.1 List of Subsidiaries Name of Subsidiary Country of Incorporation Percentage Owned Energy Vault, Inc. United States (Delaware) 100% Calistoga Resiliency Center Holdco, LLC United States (Delaware) 100% Calistoga Resiliency Center, LLC United States (Delaware) 100% Cetus Energy LLC United States (Delaware) 100% Cetus Energy, Inc. United States (Delaware) 85% Cross Trails Energy Storage

March 21, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 20, 2025 Energy Vault Holdi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 20, 2025 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commiss

March 18, 2025 NT 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING SEC File Number: 001-39982 CUSIP Number: 29280W109 (Check one): ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: December 31, 2024 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ T

March 17, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 17, 2025 Energy Vault Holdi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 17, 2025 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commiss

March 17, 2025 EX-99.1

Energy Vault Reports Fourth Quarter and Full Year 2024 Financial Results Contract Revenue backlog increased 90% to $660 million from prior quarter of $350 million, more than quadrupling on a year-over-year basis, reflecting strength in Australia and

Exhibit 99.1 Energy Vault Reports Fourth Quarter and Full Year 2024 Financial Results Contract Revenue backlog increased 90% to $660 million from prior quarter of $350 million, more than quadrupling on a year-over-year basis, reflecting strength in Australia and new US IPP and utility customers and acceleration of asset ownership with long-term offtake agreements Strong growth in Australia in exec

November 14, 2024 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 13, 2024 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Comm

November 12, 2024 424B5

Up to $50,000,000 Energy Vault Holdings, Inc. Common Stock

Filed Pursuant to Rule 424(b)(5) Registration No. 333-273089 PROSPECTUS SUPPLEMENT (to Prospectus Dated July 20, 2023) Up to $50,000,000 Energy Vault Holdings, Inc. Common Stock We have entered into an Open Market Sales AgreementTM (the “Sales Agreement”) with Jefferies LLC (“Jefferies”) relating to the sale of shares of our common stock, par value $0.0001 per share (“common stock”), offered by th

November 12, 2024 EX-1.1

Open Market Sales Agreement, dated November 12, 2024, among Jeffries LLC, as sales agent and/or principal, and Energy Vault Holdings, Inc.

Execution Version Exhibit 1.1 OPEN MARKET SALE AGREEMENTSM November 12, 2024 JEFFERIES LLC 520 Madison Avenue New York, New York 10022 Ladies and Gentlemen: Energy Vault Holdings, Inc., a Delaware corporation (the “Company”), proposes, subject to the terms and conditions stated herein, to issue and sell from time to time through Jefferies LLC, as sales agent and/or principal (the “Agent”), shares

November 12, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 12, 2024 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Comm

November 12, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

November 12, 2024 EX-99.1

Energy Vault Reports Third Quarter 2024 Financial Results Revenue backlog grew 33% quarter-over-quarter to $350 million primarily reflecting new contracts in the U.S. with Jupiter Power and Gridmatic; Australia project awards now exceed 2.6GWh Transi

Exhibit 99.1 Energy Vault Reports Third Quarter 2024 Financial Results Revenue backlog grew 33% quarter-over-quarter to $350 million primarily reflecting new contracts in the U.S. with Jupiter Power and Gridmatic; Australia project awards now exceed 2.6GWh Transitional Q3 revenue yielded 40%+ GAAP gross margin with higher services and software content; YTD 2024 GAAP Gross Margins are 28.3% Operati

September 16, 2024 SC 13G

NRGV / Energy Vault Holdings, Inc. / SailingStone Capital Partners LLC - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Energy Vault Holdings, Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 29280W109 (CUSIP Number) July 31, 2024 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the

September 13, 2024 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 13, 2024 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Com

August 6, 2024 EX-99.1

Energy Vault Reports Second Quarter 2024 Financial Results Announced new 400MWh battery storage project in Australia with ACEN, hired new Head of Global Sales and entered partnership with structural engineering firm Skidmore Owings & Merrill (SOM) to

Exhibit 99.1 Energy Vault Reports Second Quarter 2024 Financial Results Announced new 400MWh battery storage project in Australia with ACEN, hired new Head of Global Sales and entered partnership with structural engineering firm Skidmore Owings & Merrill (SOM) to integrate gravity energy storage within superstructure building design Q2 GAAP Gross margin of 27.8% driven by strong management and exe

August 6, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001

August 6, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 6, 2024 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commiss

May 28, 2024 8-K/A

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 24, 2024 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commiss

May 24, 2024 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 24, 2024 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commissio

May 9, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 9, 2024 Energy Vault Holdings

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 9, 2024 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commission

May 9, 2024 EX-99.1

© 2024 ENERGY VAULT, ALL RIGHTS RESERVED 1 © 2024 ENERGY VAULT, ALL RIGHTS RESERVED 2 M A R K E T © 2024 ENERGY VAULT, ALL RIGHTS RESERVED 3 S u p p l y a n d D e m a n d a n d D e c a r b o n i z a t i o n C o n u n d r u m M a k i n g S t o r a g e

evpresentationxinvester © 2024 ENERGY VAULT, ALL RIGHTS RESERVED 1 © 2024 ENERGY VAULT, ALL RIGHTS RESERVED 2 M A R K E T © 2024 ENERGY VAULT, ALL RIGHTS RESERVED 3 S u p p l y a n d D e m a n d a n d D e c a r b o n i z a t i o n C o n u n d r u m M a k i n g S t o r a g e a n I m p e r a t i v e Storage – maintaining grid reliability as wind and solar become more pervasive W I N D P O W E R S O

May 8, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2024 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commission

May 8, 2024 EX-10.1

Employment Agreement by and between Energy Vault, Inc. and Akshay Ladwa, dated as of October 6, 2023

EMPLOYMENT AGREEMENT between Energy Vault, Inc. and Akshay Ladwa This EMPLOYMENT AGREEMENT (this “Agreement”), dated as of October 6, 2023, is made between Energy Vault, Inc. (the “Company”) and Akshay Ladwa (the “Executive”) (collectively referred to herein as the “Parties” or individually referred to as a “Party”). RECITALS (A) The Company and Executive are parties to that certain Offer Letter,

May 8, 2024 EX-10.3

Retention Bonus Agreement by and between Energy Vault Holdings, Inc. and Akshay Ladwa, dated as of April 5, 2024

CONFIDENTIAL AND NOT FOR DISTRIBUTION OR RECIRCULATION TO: Akshay Ladwa Chief Engineering Officer April 5, 2024 RE: 2024 Retention Bonus Dear Akshay, At Energy Vault, we recognize that our people are the foundation of our strength.

May 8, 2024 EX-99.1

Energy Vault Reports First Quarter 2024 Financial Results Revenue of $7.8 million from recognition of Utility and IPP storage projects, in-line with expectations; Licensing revenue from GESSOL in Southern Africa is expected later in 2024 GAAP Gross m

Exhibit 99.1 Energy Vault Reports First Quarter 2024 Financial Results Revenue of $7.8 million from recognition of Utility and IPP storage projects, in-line with expectations; Licensing revenue from GESSOL in Southern Africa is expected later in 2024 GAAP Gross margin of 26.7% driven by strong management and execution on US battery projects Cash OpEx of $16.7 million, improved 22% year-over-year a

May 8, 2024 EX-10.2

Retention Bonus Agreement by and between Energy Vault Holdings, Inc. and Robert Piconi, dated as of

Energy Vault SA – Via Cantonale 19 – 6900 Lugano – Switzerland Iscr. Registro del Commercio del Canton Ticino n. CHE-134.914.795 Energy Vault SA Via Cantonale 19 Lugano 6900 SWITZERLAND Robert Piconi Riva Lago Colombaio 1 6921 Vico Morcote 05 April 2024 Retention Bonus Dear Rob, At Energy Vault, we realize that our people are our strength. We also realize that the best way to succeed in our compet

May 8, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 00

April 19, 2024 8-K/A

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 4, 2024 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commis

April 19, 2024 EX-10.1

Separation and General Release Agreement by and between Energy Vault Holdings, Inc. and Jan Kees van Gaalen, dated as of April 15, 2024 (filed herewith).

SEPARATION AND GENERAL RELEASE AGREEMENT This Separation and General Release Agreement (“Agreement”) is made by and between Energy Vault Holdings, Inc.

April 9, 2024 ARS

Annual Report www.energyvault.com © 2024 Energy Vault, Inc. All Rights Reserved Energy Vault Holdings, Inc. Dfasdfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffasgasgaggagagaegaergaegaegaegaegaegaegae gaegaegaegaegaegaegaegaegaegaeg

Annual Report www.energyvault.com © 2024 Energy Vault, Inc. All Rights Reserved Energy Vault Holdings, Inc. Dfasdfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffasgasgaggagagaegaergaegaegaegaegaegaegae gaegaegaegaegaegaegaegaegaegaegaegaergeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

April 9, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant Filed by a Party other than the Registrant o Preliminary Proxy Statement o Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) x Definitive Pr

April 4, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 4, 2024 Energy Vault Holdin

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 4, 2024 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commissi

April 4, 2024 EX-10.1

Form of Offer Letter, dated as of April 4, 2024, by and between Michael T. Beer and Energy Vault Holdings, Inc.

energyvaultemploymentoff Energy Vault, Inc. 4360 Park Terrace Drive, Suite 100 Westlake Village, CA 91361 United States l www.energyvault.com April 3, 2024 Michael T. Beer 103 Acacia Avenue Belvedere, CA 94920 [email protected] Re: Offer and Terms of Employment Dear Michael, It gives me great pleasure to offer you the position of Chief Financial Officer for Energy Vault Holdings, Inc. (the “Company

April 4, 2024 EX-99.1

Energy Vault Appoints Michael Beer as Chief Financial Officer Seasoned financial executive to bring decades of experience in the energy, tech and transportation sectors to leading global energy storage company

Exhibit 99.1 Energy Vault Appoints Michael Beer as Chief Financial Officer Seasoned financial executive to bring decades of experience in the energy, tech and transportation sectors to leading global energy storage company WESTLAKE VILLAGE, Calif. – April 4, 2023 – Energy Vault Holdings, Inc. (NYSE: NRGV) (“Energy Vault” or the “Company”), a leader in sustainable grid-scale energy storage solution

March 13, 2024 EX-4.1

Exhibit 4.1

Exhibit 4.1 DESCRIPTION OF CAPITAL STOCK Energy Vault Holdings, Inc., a Delaware corporation (the “Company,” “we” or “our”), currently has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended, the Company’s common stock, par value $0.0001 per share (the “Common Stock”). The following summary includes a brief description of the Common Stock as well

March 13, 2024 EX-97

Policy Relating to Recovery of Erroneously Awarded Compensation

Exhibit 97 ENERGY VAULT HOLDINGS, INC. POLICY FOR RECOVERY OF ERRONEOUSLY AWARDED COMPENSATION Energy Vault Holdings, Inc. (the “Company”) has adopted this Policy for Recovery of Erroneously Awarded Compensation (the “Policy”), effective as of October 2, 2023 (the “Effective Date”). Capitalized terms used in this Policy but not otherwise defined herein are defined in Section 11. 1.Persons Subject

March 13, 2024 EX-21.1

List of Subsidiaries of Energy Vault Holdings, Inc.

Exhibit 21.1 List of 100% Owned Subsidiaries as of December 31, 2023 Name of Subsidiary Country of Incorporation Energy Vault, Inc. United States (Delaware) Calistoga Resiliency Center, LLC United States (Delaware) Cetus Energy LLC United States (Delaware) Cross Trails Energy Storage Project, LLC United States (Delaware) Snyder Housing LLC United States (Texas) Energy Vault SA Switzerland Energy V

March 13, 2024 EX-10.10

Form of Stock Option Grant Notice and Stock Option Agreement under the 2017 Stock Incentive Plan

ENERGY VAULT, INC. 2017 STOCK INCENTIVE PLAN STOCK OPTION AGREEMENT Unless otherwise defined herein, the terms defined in the 2017 Stock Incentive Plan (the “Plan”) shall have the same defined meanings in this Stock Option Agreement (the “Option Agreement”). I. GRANT SUMMARY a. See Grant Summary sent to you via Carta (“Grant Summary”) for specific terms of the grant. b. Termination Period: This Op

March 13, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-399

March 13, 2024 EX-10.19

Consulting agreement, dated March 6, 2024, by and between Energy Vault, Inc. and Zia Huque

Exhibit 10.19 CONSULTING AGREEMENT This Consulting Agreement (“Agreement”) is made and entered into as of the 6th day of March 2024, by and between Energy Vault, Inc., a Delaware corporation (the “Company”), and Zia Huque (“Consultant”) in the County of Los Angeles, State of California. The Company desires to retain Consultant as an independent contractor to perform consulting services for the Com

March 13, 2024 EX-10.11

Form of Restricted Stock Unit Award Grant Notice and Restricted Stock Unit Award Agreement under the 2020 Stock Plan

Exhibit 10.11 Energy Vault, Inc. 2020 Stock Plan Notice of Restricted Stock Unit Award You (“Recipient”) have been granted Restricted Stock Units (“RSUs”) representing shares of the Common Stock of Energy Vault, Inc. (the “Company”) on the following terms: Name of Recipient: «Name» Total Number of RSUs Granted: «TotalRSUs» Date of Grant: «DateGrant» Vesting Commencement Date: «VestComDate» Expirat

March 12, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 12, 2024 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commiss

March 12, 2024 EX-99.1

Energy Vault Reports Fourth Quarter and Full Year 2023 Financial Results FY 2023 revenue of $341.5 million, up 134% YoY and 18% QoQ, within annual guidance range Increased cash position to $146 million with no debt, above prior guidance of $132 milli

Exhibit 99.1 Energy Vault Reports Fourth Quarter and Full Year 2023 Financial Results FY 2023 revenue of $341.5 million, up 134% YoY and 18% QoQ, within annual guidance range Increased cash position to $146 million with no debt, above prior guidance of $132 million from Q3 2023 Reduced quarterly cash Operating Expense run rate by 25-30% through actions taken in Q4 2023, enabling a 2024 reduced qua

March 12, 2024 8-K/A

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 14, 2023 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Co

February 1, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 1, 2024 Energy Vault Hol

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 1, 2024 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commi

December 20, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 14, 2023 Energy Vault Ho

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 14, 2023 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Comm

December 20, 2023 EX-99.1

Energy Vault Appoints Australian Energy Sector Leader Stephanie Unwin to Its Board Of Directors Ms. Unwin brings extensive industry experience and leadership from executive roles at leading energy and renewables companies, including Horizon Power and

Exhibit 99.1 Energy Vault Appoints Australian Energy Sector Leader Stephanie Unwin to Its Board Of Directors Ms. Unwin brings extensive industry experience and leadership from executive roles at leading energy and renewables companies, including Horizon Power and Zenith Energy WESTLAKE VILLAGE, Calif. – December 14, 2023 – Energy Vault Holdings, Inc. (NYSE: NRGV) (“Energy Vault” or the “Company”),

November 7, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 7, 2023 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commi

November 7, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

November 7, 2023 EX-99.1

Energy Vault Reports Third Quarter 2023 Financial Results Revenue of $172.2 million driven by multiple energy storage deployments within the US market Announced five new Gravity Energy Storage System projects under the license and royalty agreement w

Exhibit 99.1 Energy Vault Reports Third Quarter 2023 Financial Results Revenue of $172.2 million driven by multiple energy storage deployments within the US market Announced five new Gravity Energy Storage System projects under the license and royalty agreement with Atlas Renewables totaling 1.2 GWh as the first 100 MWh system nears completion outside Shanghai Project Awards increased by 5.5 GWh,

August 8, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 8, 2023 Energy Vault Holdi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 8, 2023 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commiss

August 8, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001

August 8, 2023 EX-99.1

Energy Vault Reports Second Quarter 2023 Earnings Results Revenue of $39.7 million reflecting 247% q/q sequential growth while executing to customer delivery expectations across all projects. GAAP gross margin of 9.9%, or $3.9 million, driven by batt

Exhibit 99.1 Energy Vault Reports Second Quarter 2023 Earnings Results Revenue of $39.7 million reflecting 247% q/q sequential growth while executing to customer delivery expectations across all projects. GAAP gross margin of 9.9%, or $3.9 million, driven by battery energy storage deployments during the quarter; YTD 2023 GAAP gross margin of 12.5%. Improved adjusted EBITDA and net income reflectin

July 19, 2023 CORRESP

Energy Vault Holdings, Inc. 4360 Park Terrace Drive Suite 100 Westlake Village, California 91361

Energy Vault Holdings, Inc. 4360 Park Terrace Drive Suite 100 Westlake Village, California 91361 July 19, 2023 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Re: Energy Vault Holdings, Inc. Registration Statement on Form S-3 File No. 333-273089 To the addressees set forth above: Pursuant to Rule 461 of Regulation C of the

July 14, 2023 S-3/A

As filed with the Securities and Exchange Commission on July 14, 2023

As filed with the Securities and Exchange Commission on July 14, 2023 Registration No.

June 30, 2023 EX-4.3

Form of Indenture

Exhibit 4.3 ENERGY VAULT HOLDINGS, INC. INDENTURE Dated as of , 20 Wilmington Trust, National Association Trustee TABLE OF CONTENTS Page ARTICLE I. DEFINITIONS AND INCORPORATION BY REFERENCE 1 Section 1.1. Definitions 1 Section 1.2. Other Definitions 4 Section 1.3. Incorporation by Reference of Trust Indenture Act 4 Section 1.4. Rules of Construction 5 ARTICLE II. THE SECURITIES 5 Section 2.1. Iss

June 30, 2023 S-3

As filed with the Securities and Exchange Commission on June 30, 2023

As filed with the Securities and Exchange Commission on June 30, 2023 Registration No.

June 30, 2023 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Energy Vault Holdings, Inc.

June 30, 2023 EX-25.1

Statement of Eligibility on Form T-1 under the Trust Indenture Act of 1939, as amended, of Wilmington Trust, National Association, as trustee under the indenture filed as Exhibit 4.3 above

Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 o Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) WILMINGTON TRUST, NATIONAL ASSOCIATION (Exact name of trustee as specified in its charter) 16-1486454 (I.R.S. employer identification no.) 1100 North Market Street Wilmington, DE 19890-0001 (Address of principal

June 15, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 14, 2023 Energy Vault Holdin

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 14, 2023 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commissi

June 5, 2023 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Post-Effective Amendment No. 3 to Form S-1 on Form S-3 Energy Vault Holdings, Inc. Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered (1) Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Registered Securities Fees Previously Paid (2) Equity Common Stock,

June 5, 2023 POS AM

As filed with the Securities and Exchange Commission on June 2, 2023

As filed with the Securities and Exchange Commission on June 2, 2023 Registration No.

June 2, 2023 CORRESP

* * * *

555 Eleventh Street, N.W., Suite 1000 Washington, D.C. 20004-1304 Tel: +1.202.637.2200 Fax: +1.202.637.2201 www.lw.com FIRM / AFFILIATE OFFICES Austin Milan Beijing Munich Boston New York Brussels Orange County Century City Paris Chicago Riyadh Dubai San Diego June 2, 2023 Düsseldorf San Francisco Frankfurt Seoul Via EDGAR Hamburg Shanghai Hong Kong Silicon Valley Securities and Exchange Commissio

May 26, 2023 8-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 25, 2023

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 25, 2023 Energy Vault Holdings, Inc.

May 25, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 25, 2023 Energy Vault Holding

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 25, 2023 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commissio

May 22, 2023 POS AM

As filed with the Securities and Exchange Commission on May 19, 2023

As filed with the Securities and Exchange Commission on May 19, 2023 Registration No.

May 19, 2023 CORRESP

* * *  *

555 Eleventh Street, N.W., Suite 1000 Washington, D.C. 20004-1304 Tel: +1.202.637.2200 Fax: +1.202.637.2201 www.lw.com FIRM / AFFILIATE OFFICES Austin Milan Beijing Munich Boston New York Brussels Orange County Century City Paris Chicago Riyadh May 19, 2023 Dubai San Diego Düsseldorf San Francisco Frankfurt Seoul Via EDGAR Hamburg Shanghai Hong Kong Silicon Valley Securities and Exchange Commissio

May 10, 2023 EX-10.1

Letter agreement, dated May 5, 2023, by and between Energy Vault Holdings, Inc. and Josh McMorrow (incorporated by reference to Exhibit 10.1 to Energy Vault Holdings, Inc.’s Form 10-Q (File No. 001-39982), filed with the SEC on May 10, 2023).

a101joshmcmorrowsidelet 1 From: Energy Vault Holdings, Inc 4360 Park Terrace Drive, Suite 100 Westlake Village California 91361 United States (the “Company”) To: Josh McMorrow Fasanenstraße 65 10719 Berlin Germany (the “Employee”) 05 May 2023 Treatment of Outstanding Equity Incentive Awards 1.

May 10, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 00

May 10, 2023 EX-10.2

Addendum to the Employment Agreement, dated May 5, 2023 between Energy Vault SA and Josh McMorrow (incorporated by reference to Exhibit 10.2 to Energy Vault Holdings, Inc.’s Form 10-Q (File No. 001-39982), filed with the SEC on May 10, 2023).

a102addendumagreeementjo Energy Vault SA – Via Cantonale 19 – 6900 Lugano – Switzerland Iscr.

May 9, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 9, 2023 Energy Vault Holdings

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 9, 2023 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commission

May 9, 2023 EX-99.1

Energy Vault Reports First Quarter 2023 Earnings Results New project awards increased by ~ $1 billion (2.8 GWh), of which ~ $725 million (2 GWh) were gravity EVx systems Recognized revenue of $11.4 million, in-line with expectations, and driven by co

Exhibit 99.1 Energy Vault Reports First Quarter 2023 Earnings Results New project awards increased by ~ $1 billion (2.8 GWh), of which ~ $725 million (2 GWh) were gravity EVx systems Recognized revenue of $11.4 million, in-line with expectations, and driven by construction progress of US-based BESS systems GAAP gross margin of 21.2%, or $2.4 million, driven by the Company’s BESS project activity d

May 8, 2023 POS AM

As filed with the Securities and Exchange Commission on May 5, 2023

As filed with the Securities and Exchange Commission on May 5, 2023 Registration No.

May 8, 2023 EX-24.1

Power of Attorney by Theresa Fariello and powers of attorney included on the signature page to the initial filing of the registration statement.

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS that each person whose signature appears below constitutes and appoints Robert Piconi, his or her true and lawful attorneys-in-fact and agents, each with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities, to sign any and all amendments, including post- ef

April 17, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission only (

April 13, 2023 EX-10.14

Non-Employee Director Compensation Policy

Exhibit 10.14 Energy Vault Holdings, Inc. Compensation Program for Non-Executive Directors (as amended and restated, effective April 10, 2023) Non-employee members of the Board of Directors (“Board”) of Energy Vault Holdings, Inc. (the “Company”) shall receive cash and equity compensation as set forth in this Non-Executive Director Compensation Program (this “Program”). The cash and equity compens

April 13, 2023 424B3

Energy Vault Holdings, Inc. Up to 101,567,843 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock

Filed pursuant to Rule 424(b)(3) Registration Statement No. 333-262720 Prospectus Supplement No. 14 (To Prospectus dated May 6, 2022) Energy Vault Holdings, Inc. Up to 101,567,843 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock This prospectus supplement supplements the prospectus dated May 6, 2022, as previously supplemented (the “Prospectus”), which forms a part of our registr

April 13, 2023 EX-21.1

List of Subsidiaries of Energy Vault Holdings, Inc.

Exhibit 21.1 List of 100% Owned Subsidiaries as of December 31, 2022 Name of Subsidiary Country of Incorporation Energy Vault, Inc. United States (Delaware) Calistoga Resiliency Center, LLC United States (Delaware) Energy Vault SA Switzerland Energy Vault Pty Ltd Australia

April 13, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-399

March 31, 2023 NT 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING SEC File Number: 001-39982 CUSIP Number: 29280W109 (Check one): ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: December 31, 2022 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ T

March 7, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 7, 2023 Energy Vault Holdin

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 7, 2023 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commissi

March 7, 2023 424B3

Energy Vault Holdings, Inc. Up to 101,567,843 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock

Filed pursuant to Rule 424(b)(3) Registration No. 333-262720 PROSPECTUS SUPPLEMENT NO. 13 (to Prospectus dated May 6, 2022) Energy Vault Holdings, Inc. Up to 101,567,843 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock This prospectus supplement supplements the prospectus dated May 6, 2022, as previously supplemented (the “Prospectus”), which forms a part of our registration stat

March 7, 2023 EX-99.1

Energy Vault Reports Fourth Quarter 2022 Earnings Results

Exhibit 99.1 Energy Vault Reports Fourth Quarter 2022 Earnings Results Financial Highlights •Fourth quarter 2022 revenue of $100.3 million, driven by the Company’s gravity energy storage territory expansion and execution ahead of schedule on a California 275MWh storage project with expected COD in July 2023. •Revenue for the year ending December 31, 2022 totaled $145.9 million, driven by the stron

February 14, 2023 SC 13G/A

NRGV / Energy Vault Holdings Inc / CITADEL ADVISORS LLC - SC 13G/A Passive Investment

SC 13G/A 1 tm233474-16sc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2 (Amendment No. 2)* ENERGY VAULT HOLDINGS, INC. (Name of Issuer) Common Stock, par value $0.0001 per share (the “Shar

February 13, 2023 SC 13G/A

NRGV / Energy Vault Holdings Inc / INTEGRATED CORE STRATEGIES (US) LLC Passive Investment

SC 13G/A 1 NRGVSC13GA22023.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (AMENDMENT NO. 2) ENERGY VAULT HOLDINGS, INC. (formerly Novus Capital Corporation II) (Name of Issuer) COMMON STOCK, PAR VALUE $0.0001 PER SHARE (Title of Class of Securities) 29280W109 (CUSIP Number) DECEMBER 31, 2022 (Date of event which re

February 10, 2023 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 10, 2023 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Comm

February 7, 2023 SC 13D/A

NRGV / Energy Vault Holdings Inc / Sloss Dakin Activist Investment

SC 13D/A 1 pml13d.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* ENERGY VAULT HOLDINGS, INC. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 29280W109 (CUSIP Number) Taylor Frankel c/o Prime Movers Lab P.O. Box 12829 Jackson, WY 83002 307-203-5036 (Name, Ad

February 6, 2023 SC 13G/A

NRGV / Energy Vault Holdings Inc / Weiss Asset Management LP Passive Investment

138,268,342 =============================================================================== UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

January 24, 2023 EX-99.1

ENERGY VAULT APPOINTS ENERGY AND TRANSPORTATION INDUSTRY EXECUTIVE THERESA FARIELLO TO ITS BOARD OF DIRECTORS Fariello brings decades of experience and leadership in government affairs at FORTUNE 500 companies, including United Airlines and ExxonMobi

ENERGY VAULT APPOINTS ENERGY AND TRANSPORTATION INDUSTRY EXECUTIVE THERESA FARIELLO TO ITS BOARD OF DIRECTORS Fariello brings decades of experience and leadership in government affairs at FORTUNE 500 companies, including United Airlines and ExxonMobil LUGANO, Switzerland & WESTLAKE VILLAGE, Calif.

January 24, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 18, 2023 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commi

January 18, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 18, 2023 Energy Vault Holdings, Inc.

January 18, 2023 EX-99.1

Energy Vault Updates Fourth Quarter and Full Year 2022 Expected Revenue Results Revises full year 2022 revenue range to $142 – $152 million from previous $75-100 million Significant fourth quarter over-performance driven by U.S. energy storage projec

Exhibit 99.1 Energy Vault Updates Fourth Quarter and Full Year 2022 Expected Revenue Results Revises full year 2022 revenue range to $142 – $152 million from previous $75-100 million Significant fourth quarter over-performance driven by U.S. energy storage project execution and global gravity storage territory expansions Updated 2023 outlook to be provided concurrent with upcoming earnings results

January 18, 2023 424B3

Energy Vault Holdings, Inc. Up to 101,567,843 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock

Filed pursuant to Rule 424(b)(3) Registration Statement No. 333-262720 Prospectus Supplement No. 12 (To Prospectus dated May 6, 2022) Energy Vault Holdings, Inc. Up to 101,567,843 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock This prospectus supplement supplements the prospectus dated May 6, 2022, as previously supplemented (the “Prospectus”), which forms a part of our registr

December 22, 2022 8-K/A

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 20, 2022 Energy Vault Holdings, Inc.

December 22, 2022 424B3

Energy Vault Holdings, Inc. Up to 101,567,843 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock

424B3 1 tm2233275d1424b3.htm 424B3 Filed pursuant to Rule 424(b)(3) Registration Statement No. 333-262720 Prospectus Supplement No. 11 (To Prospectus dated May 6, 2022) Energy Vault Holdings, Inc. Up to 101,567,843 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock This prospectus supplement supplements the prospectus dated May 6, 2022, as previously supplemented (the “Prospectus”)

December 20, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 20, 2022 Energy Vault Holdings, Inc.

December 20, 2022 424B3

Energy Vault Holdings, Inc. Up to 101,567,843 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock

Filed pursuant to Rule 424(b)(3) Registration Statement No. 333-262720 Prospectus Supplement No. 10 (To Prospectus dated May 6, 2022) Energy Vault Holdings, Inc. Up to 101,567,843 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock This prospectus supplement supplements the prospectus dated May 6, 2022, as previously supplemented (the “Prospectus”), which forms a part of our registr

December 9, 2022 S-8

As filed with the Securities and Exchange Commission on December 9, 2022

As filed with the Securities and Exchange Commission on December 9, 2022 Registration No.

December 9, 2022 EX-FILING FEES

Calculation of Filing Fee Table

US-DOCS\137129942.5 Exhibit 107.1 Calculation of Filing Fee Tables Form S-8 (Form Type) Energy Vault Holdings, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Share (2) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee

November 14, 2022 EX-10.6

Form of Stock Option Grant Notice and Stock Option Agreement under the 2022 Employment Inducement Award Plan

Exhibit 10.6 US-DOCS\137017117.2 ENERGY VAULT HOLDINGS, INC. 2022 EMPLOYMENT INDUCEMENT AWARD PLAN NOTICE OF STOCK OPTION GRANT You have been granted the following option to purchase shares of the Common Stock of Energy Vault Holdings, Inc. (the ?Company?) on the terms and conditions set out below: Name of Optionee: ?Name? Total Number of Shares: ?TotalShares? Type of Option (U.S. Tax Status): Non

November 14, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 14, 2022 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Comm

November 14, 2022 EX-10.7

Form of Restricted Stock Unit Award Grant Notice and Restricted Stock Unit Award Agreement under the 2022 Employment Inducement Award Plan

Exhibit 10.7 US-DOCS\137016642.2 ENERGY VAULT HOLDINGS, INC. 2022 EMPLOYMENT INDUCEMENT AWARD PLAN NOTICE OF RESTRICTED STOCK UNIT AWARD You have been granted Restricted Stock Units (?RSUs?), each representing the right to receive one share of the Common Stock of Energy Vault Holdings, Inc. (the ?Company?) on the following terms and conditions: Name of Recipient: ?Name? Total Number of RSUs Grante

November 14, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

November 14, 2022 EX-10.9

Form of Restricted Stock Unit Award Grant Notice and Restricted Stock Unit Award Agreement under the 2022 Equity Incentive Plan

Exhibit 10.9 US-DOCS\137263878.1 ENERGY VAULT HOLDINGS, INC. 2022 EQUITY INCENTIVE PLAN NOTICE OF RESTRICTED STOCK UNIT AWARD You have been granted Restricted Stock Units (?RSUs?), each representing the right to receive one share of the Common Stock of Energy Vault Holdings, Inc. (the ?Company?) on the following terms and conditions: Name of Recipient: [] Total Number of RSUs Granted: [] Date of G

November 14, 2022 424B3

Energy Vault Holdings, Inc. Up to 101,567,843 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock

424B3 1 prospectusupdateno9q32022.htm 424B3 Filed pursuant to Rule 424(b)(3) Registration No. 333-262720 PROSPECTUS SUPPLEMENT NO. 9 (to Prospectus dated May 6, 2022) Energy Vault Holdings, Inc. Up to 101,567,843 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock This prospectus supplement supplements the prospectus dated May 6, 2022, as previously supplemented (the “Prospectus”),

November 14, 2022 EX-99.1

Energy Vault Reports Third Quarter 2022 Earnings Results

Exhibit 99.1 Energy Vault Reports Third Quarter 2022 Earnings Results ?Third quarter 2022 revenue of $1.7 million, driven by revenue from the energy storage projects with Jupiter Power in Texas and California. ?Revenue for the first nine months ending September 30, 2022, totaled $45.6 million, driven mainly by the gravity energy storage licensing revenue with Atlas Renewable. ?Third quarter GAAP l

November 14, 2022 EX-10.2

Offer Letter, dated November 14, 2022, by and between Energy Vault Holdings, Inc. and Jan Kees Van Gaalen

November 14, 2022 Johannes Cornelis Maria van Gaalen 5244 Alton Rd. Miami Beach FL 33410 [email protected] Re: Offer and Terms of Employment Dear Johannes, It gives me great pleasure to offer you the position of Chief Financial Officer for Energy Vault Holdings, Inc. (the ?Company?). If you accept this offer, the terms and conditions of this offer letter agreement (the ?Agreement?), in addit

November 14, 2022 EX-10.8

Form of Stock Option Grant Notice and Stock Option Agreement under the 2022 Equity Incentive Plan

Exhibit 10.8 US-DOCS\137263876.1 ENERGY VAULT HOLDINGS, INC. 2022 EQUITY INCENTIVE PLAN NOTICE OF STOCK OPTION GRANT You have been granted the following option to purchase shares of the Common Stock of Energy Vault Holdings, Inc. (the ?Company?) on the terms and conditions set out below: Name of Optionee: [] Total Number of Shares: [] Type of Option (U.S. Tax Status): [Incentive Stock Option][Nons

November 14, 2022 EX-10.1

Offer Letter, dated November 11, 2022, by and between Energy Vault Holdings, Inc. and Robert Piconi

US-DOCS\135566613.6 EMPLOYMENT AGREEMENT by and among Energy Vault SA, Energy Vault Holdings, Inc. and Robert A. Piconi This EMPLOYMENT AGREEMENT (this ?Agreement?), dated as of November 11, 2022, is made by and among Energy Vault SA (the ?Company?), Energy Vault Holdings, Inc. (?Parent?)(but solely with respect to Sections 1, 4, 11, 12(c)(iv), 12(c)(v) and 12(d)(iii)) and Robert A. Piconi (the ?E

November 14, 2022 EX-10.3

Offer Letter, dated November 10, 2022, by and between Energy Vault Holdings, Inc. and Energy Terruzzin

EMPLOYMENT AGREEMENT between Energy Vault, Inc. and Marco Terruzzin November 10, 2022, is made between Energy Vault, and Marco Terruzzin RECITALS (A) The Company and Executive are parties to that certain Offer Letter, dated as of September 17, 2019, as (B) It is the desire of the Company to continue to assure itself of the services of Executive on the terms set forth in this Agreement effective as

November 14, 2022 EX-10.5

2022 Employment Inducement Award Plan

Exhibit 10.5 US-DOCS\136942439.4 ENERGY VAULT HOLDINGS, INC. 2022 EMPLOYMENT INDUCEMENT AWARD PLAN (AS ADOPTED ON NOVEMBER 14, 2022) US-DOCS\136942439.4 ENERGY VAULT HOLDINGS, INC. 2022 EMPLOYMENT INDUCEMENT AWARD PLAN ARTICLE 1. INTRODUCTION. The purpose of the Plan is to promote the long-term success of the Company and the creation of stockholder value by (a) encouraging Eligible Individuals to

November 8, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 3, 2022 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commi

November 8, 2022 424B3

Energy Vault Holdings, Inc. Up to 101,567,843 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock

Filed pursuant to Rule 424(b)(3) Registration No. 333-262720 PROSPECTUS SUPPLEMENT NO. 8 (to Prospectus dated May 6, 2022) Energy Vault Holdings, Inc. Up to 101,567,843 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock This prospectus supplement supplements the prospectus dated May 6, 2022, as previously supplemented (the ?Prospectus?), which forms a part of our registration state

November 2, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, For Use of the Commission only (a

November 2, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission only (

October 14, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 14, 2022 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commi

September 22, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 22, 2022 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Com

September 22, 2022 EX-99.1

© ENERGY VAULT – ALL RIGHTS RESERVED Energy Vault The Preeminent Energy Storage Company Investor Presentation | September 2022 Exhibit 99.1 © ENERGY VAULT – ALL RIGHTS RESERVED Enabling a Renewable World 2 Disclaimer Forward-Looking Statements This p

? ENERGY VAULT ? ALL RIGHTS RESERVED Energy Vault The Preeminent Energy Storage Company Investor Presentation | September 2022 Exhibit 99.

September 2, 2022 SC 13D

NRGV / Energy Vault Holdings Inc / Sloss Dakin Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No.

August 18, 2022 SC 13D/A

NRGV / Energy Vault Holdings Inc / Helena Special Investments LLC - AMENDMENT NO. 2 TO SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* ENERGY VAULT HOLDINGS, INC. (Name of Issuer) CLASS A COMMON STOCK, PAR VALUE $0.0001 PER SHARE (Title of Class of Securities) 29280W 109 (CUSIP Number) Matthew L. Saunders c/o Helena Special Investments LLC 515 S Flower Street, Suite 5100 Los Angeles, CA

August 17, 2022 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED WARRANTS The New York Stock Exchange ("NYSE" or the "Exchange") hereby notifies the Securities and Exchange Commission (the "Commission") of its intention to remove the entire class of redeemable Warrants, each warrant exercisable for one share of common stock at an exercise price of $11.

August 8, 2022 EX-99.1

Energy Vault Reports Second Quarter 2022 Earnings Results

Exhibit 99.1 Energy Vault Reports Second Quarter 2022 Earnings Results ?Second quarter 2022 revenue of $1.0 million, driven by construction support services for the 100 megawatt hour (MWh) project in Rudong, China ?Revenue for the first half of 2022 totaled $43.9 million, driven by a portion of the $50 million licensing and royalty agreement with Atlas Renewable received in the first quarter of 20

August 8, 2022 424B3

Energy Vault Holdings, Inc. Up to 111,151,176 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock

Table of Contents Filed pursuant to Rule 424(b)(3) Registration No. 333-262720 PROSPECTUS SUPPLEMENT NO. 7 (to Prospectus dated May 6, 2022) Energy Vault Holdings, Inc. Up to 111,151,176 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock This prospectus supplement supplements the prospectus dated May 6, 2022, as previously supplemented (the ?Prospectus?), which forms a part of our

August 8, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001

August 8, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 8, 2022 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commiss

August 4, 2022 424B3

Energy Vault Holdings, Inc. Up to 111,151,176 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock

Filed pursuant to Rule 424(b)(3) Registration No. 333-262720 PROSPECTUS SUPPLEMENT NO. 6 (to Prospectus dated May 6, 2022) Energy Vault Holdings, Inc. Up to 111,151,176 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock This prospectus supplement supplements the prospectus dated May 6, 2022, as previously supplemented (the ?Prospectus?), which forms a part of our registration state

August 2, 2022 424B3

Energy Vault Holdings, Inc. Up to 111,151,176 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock

Filed pursuant to Rule 424(b)(3) Registration No. 333-262720 PROSPECTUS SUPPLEMENT NO. 5 (to Prospectus dated May 6, 2022) Energy Vault Holdings, Inc. Up to 111,151,176 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock This prospectus supplement supplements the prospectus dated May 6, 2022, as previously supplemented (the ?Prospectus?), which forms a part of our registration state

August 2, 2022 EX-99.1

Energy Vault Announces Completion of Redemption of Warrants

Exhibit 99.1 Energy Vault Announces Completion of Redemption of Warrants LUGANO, Switzerland & WESTLAKE VILLAGE, Calif., August 2, 2022 ? Energy Vault Holdings, Inc. (NYSE: NRGV, NRGV WS) (?Energy Vault? or the ?Company?), a leader in sustainable, grid-scale energy storage solutions, today announced the completion of the redemption of all outstanding public warrants (other than Private Placement W

August 2, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 2, 2022 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction (Commission (IRS Employer

August 1, 2022 EX-FILING FEES

Calculation of Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Energy Vault Holdings, Inc.

August 1, 2022 EX-99.4

Restricted Stock Purchase Agreement dated as of November 28, 2017, by and between Andrea Pedretti and Energy Vault, Inc.

Exhibit 99.4 ENERGY VAULT, INC. RESTRICTED STOCK PURCHASE AGREEMENT THIS AGREEMENT is made effective as of 28.11.2017 (?Effective Date?) between Energy Vault, Inc., a Delaware corporation (the ?Company?) and Andrea Pedretti (the ?Purchaser?). WHEREAS, the Purchaser is an employee of [Energy Vault GmbH], a wholly-owned subsidiary of the Company [organized under the laws of Switzerland] (the ?Subsid

August 1, 2022 S-8

As filed with the Securities and Exchange Commission on August 1, 2022

As filed with the Securities and Exchange Commission on August 1, 2022 Registration No.

July 29, 2022 S-8

As filed with the Securities and Exchange Commission on July 29, 2022

As filed with the Securities and Exchange Commission on July 29, 2022 Registration No.

July 29, 2022 EX-99.4

Form of Stock Option Agreement, by and between Energy Vault, Inc. and West Investments VIII, LLC

Exhibit 99.4 Energy Vault, Inc. Notice of Stock Option Grant (Installment Exercise, Non-Plan) The Optionee has been granted the following option to purchase shares of the common stock of Energy Vault, Inc.: Name of Optionee: West Investments VIII, LLC Total Number of Shares: 21,500 Type of Option: Nonstatutory Stock Option (NSO) Exercise Price per Share: $10.00 Date of Grant: ?DateGrant? Date Exer

July 29, 2022 EX-FILING FEES

Calculation of Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Energy Vault Holdings, Inc.

July 27, 2022 EX-99.1

HELENA ZEPAK EV LLC ACKNOWLEDGMENT AGREEMENT

Exhibit 99.1 HELENA ZEPAK EV LLC ACKNOWLEDGMENT AGREEMENT THIS ACKNOWLEDGMENT AGREEMENT (this ?Agreement?) is made as of the 20th day of July, 2022 (the ?Effective Date?) by and between Helena Zepak EV LLC, a Delaware limited liability company (the ?Company?), the Goldman Sachs Trust Company of Delaware, Trustee of the Zak Family Trust, dated September 17, 2018 (the ?Member?), Matthew Bash (the ?G

July 27, 2022 SC 13D/A

NRGV / Energy Vault Holdings Inc / Helena Special Investments LLC - AMENDMENT NO. 1 TO SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* ENERGY VAULT HOLDINGS, INC. (Name of Issuer) CLASS A COMMON STOCK, PAR VALUE $0.0001 PER SHARE (Title of Class of Securities) 29280W 109 (CUSIP Number) Matthew L. Saunders c/o Helena Special Investments LLC 515 S Flower Street, Suite 5100 Los Angeles, CA

July 12, 2022 424B3

Energy Vault Holdings, Inc. Up to 111,151,176 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock

Filed pursuant to Rule 424(b)(3) Registration No. 333-262720 PROSPECTUS SUPPLEMENT NO. 4 (to Prospectus dated May 6, 2022) Energy Vault Holdings, Inc. Up to 111,151,176 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock This prospectus supplement supplements the prospectus dated May 6, 2022, as previously supplemented (the ?Prospectus?), which forms a part of our registration state

July 12, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 10, 2022 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commissi

July 12, 2022 EX-10.1

Form of New Lock-Up Agreement

Exhibit 10.1 ?????? ??? ????July 10, 2022 Energy Vault Holdings, Inc. 4360 Park Terrace Drive Suite 100 Westlake Village, California 91361 Re: New Lock-Up Agreement Ladies and Gentlemen: The undersigned (the ?Securityholder?) was granted equity pursuant to the Energy Vault, Inc. 2020 Stock Plan and an applicable award agreement that vested or will vest according to the satisfaction of (i) a time-b

July 1, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 1, 2022 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commissio

July 1, 2022 EX-99.1

NOTICE OF REDEMPTION OF CERTAIN WARRANTS (CUSIP 29280W 117)

Exhibit 99.1 July 1, 2022 NOTICE OF REDEMPTION OF CERTAIN WARRANTS (CUSIP 29280W 117) Dear Warrant Holder, Energy Vault Holdings, Inc. (formerly known as Novus Capital Corporation II, and hereinafter referred to as the ?Company?) hereby gives notice that it is redeeming, at 5:00 p.m. New York City time on August 1, 2022 (the ?Redemption Date?), all of the Company?s outstanding warrants (the ?Publi

July 1, 2022 424B3

Energy Vault Holdings, Inc. Up to 111,151,176 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock

Filed pursuant to Rule 424(b)(3) Registration No. 333-262720 PROSPECTUS SUPPLEMENT NO. 3 (to Prospectus dated May 6, 2022) Energy Vault Holdings, Inc. Up to 111,151,176 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock This prospectus supplement supplements the prospectus dated May 6, 2022, as previously supplemented (the ?Prospectus?), which forms a part of our registration state

July 1, 2022 EX-99.2

Energy Vault Announces Redemption of Public Warrants

Exhibit 99.2 Energy Vault Announces Redemption of Public Warrants LUGANO, Switzerland & WESTLAKE VILLAGE, Calif., July 1, 2022 ? Energy Vault Holdings, Inc. (NYSE: NRGV) (?Energy Vault? or the ?Company?), a leader in sustainable, grid-scale energy storage solutions, today announced that the Company will redeem all of its publicly traded warrants to purchase shares of Energy Vault?s Class A common

May 18, 2022 424B3

Energy Vault Holdings, Inc. Up to 111,151,176 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock

Filed pursuant to Rule 424(b)(3) Registration No. 333-262720 PROSPECTUS SUPPLEMENT NO. 2 (to Prospectus dated May 6, 2022) Energy Vault Holdings, Inc. Up to 111,151,176 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock This prospectus supplement supplements the prospectus dated May 6, 2022, as previously supplemented (the ?Prospectus?), which forms a part of our registration state

May 17, 2022 424B3

Energy Vault Holdings, Inc. Up to 111,151,176 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock

Filed pursuant to Rule 424(b)(3) Registration No. 333-262720 PROSPECTUS SUPPLEMENT NO. 1 (to Prospectus dated May 6, 2022) Energy Vault Holdings, Inc. Up to 111,151,176 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock This prospectus supplement supplements the prospectus dated May 6, 2022 (the ?Prospectus?), which forms a part of our registration statement on Form S-1 (No. 333-26

May 17, 2022 SC 13D

NRGV / Energy Vault Holdings Inc / Idealab Studio, LLC Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 ENERGY VAULT HOLDINGS, INC. (Name of Issuer) Common Stock, Par Value $0.0001 per share (Title of Class of Securities) 29280W109 (CUSIP Number) IDEALAB STUDIO, LLC c/o Bill Gross 130 W. Union Street Pasadena, CA 91103 626-585-6900 (Name, Address and Telephone Number of Pers

May 17, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date Earliest Event Reported): May 11, 2022 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or Other Jurisdiction (Commission (IRS Employer of In

May 16, 2022 EX-99.1

Energy Vault Reports First Quarter 2022 Earnings Results

Exhibit 99.1 Energy Vault Reports First Quarter 2022 Earnings Results ?First quarter 2022 revenue of $42.9 million, driven by the $50.0 million licensing and royalty agreement with Atlas Renewable. ?GAAP operating income of $20.8 million. ?GAAP net loss of $20.1 million impacted by one-time IPO transaction costs of $20.6 million and a non-cash charge of $20.2 million for the change in fair value o

May 16, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2022 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or other jurisdiction of incorporation) (Commissio

May 16, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 00

May 16, 2022 EX-10.7

Offer Letter, dated May 16, 2022, by and between Energy Vault Holdings, Inc. and Josh McMorrow

Exhibit 10.7 Arbeitsvertrag Employment Agreement zwischen between EnergyVault SA Via Pessina 13, Lugano, 6900 CH - im Folgenden ?Gesellschaft" genannt ? und - hereinafter referred to as "Company" ? and Josh McMorrow [ * * *] - im Folgenden ?Leitender Angestellter" genannt - - hereinafter referred to as "Executive Employee" - 1.Beginn des Arbeitsverhaltnisses 1.1Der Leitende Angestellte tritt am 16

May 16, 2022 EX-10.4

Energy Vault Holdings, Inc. 2022 Equity Incentive Plan

Exhibit 10.4 Energy Vault Holdings, Inc. 2022 Equity Incentive Plan (As Adopted on February 11, 2022) (Approved By The Stockholders on February 10, 2022) Energy Vault Holdings, Inc. 2022 Equity Incentive Plan ARTICLE 1. INTRODUCTION. The Board adopted the Plan to become effective immediately, although no Awards may be granted prior to the Business Combination Date. The purpose of the Plan is to pr

May 16, 2022 EX-10.6

Amendment to the Energy Storage System Agreement by and between DG Fuels LLC and Energy Vault Inc., dated as of May 10, 2022

Exhibit 10.6 FIRST AMENDMENT OF ENERGY STORAGE SYSTEM AGREEMENT This First Amendment of the Energy Storage System Agreement (this ?First Amendment?) is made this 10 day of May 2022, between Energy Vault, Inc., a Delaware corporation (?Energy Vault?), and DG Fuels, LLC, a Delaware limited liability company (?DGF?) (collectively, the ?Parties? and, individually, a ?Party?). RECITALS A.Energy Vault a

May 9, 2022 424B3

Energy Vault Holdings, Inc. Up to 111,151,176 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock

TABLE OF CONTENTS ?Filed Pursuant to Rule 424(b)(3) ?Registration No. 333-262720? PROSPECTUS Energy Vault Holdings, Inc. Up to 111,151,176 Shares of Common Stock 5,166,666 Warrants to Purchase Common Stock This prospectus relates to the issuance by us of up to an aggregate of up to 9,583,256 shares of our common stock, $0.0001 par value per share (?Common Stock?) that are issuable upon the exercis

May 4, 2022 CORRESP

Energy Vault Holdings, Inc. 4360 Park Terrace Drive, Suite 100 Westlake Village, California 91361

Energy Vault Holdings, Inc. 4360 Park Terrace Drive, Suite 100 Westlake Village, California 91361 May 4, 2022 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F. Street N.E. Washington, D.C. 20549 Attn:???????Bradley Ecker Re: Energy Vault Holdings, Inc. Registration Statement on Form S-1 (File No. 333-262720) Ladies and Gentlemen: Energy Vault Holdings, Inc. (the ?

May 3, 2022 CORRESP

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May 3, 2022 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance 100 F.

May 3, 2022 EX-FILING FEES

Filing Fee Table

Exhibit 107.1 Calculation of Filing Fee Tables ? S-1 ?Energy Vault Holdings, Inc. ?Newly Registered Securities ? ? Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered (1) ? Proposed Maximum Offering Price Per Unit ? Maximum Aggregate Offering Price Fee Rate ? Amount of Registration Fee Newly Registered Securities Fees to be Paid Equity Common Stock, par value

May 3, 2022 EX-10.35

Offer Letter, dated April 14, 2022, by and between Energy Vault Holdings, Inc. and David Hitchcock

Exhibit 10.35 April 14, 2022 David Hitchcock [* * *] Re: Offer and Terms of Employment Dear David, It gives me great pleasure to offer you the position of Chief Financial Officer for Energy Vault Holdings, Inc. (the ?Company?). If you accept this offer, the terms and conditions of this offer letter agreement (the ?Agreement?), in addition to the attachments enclosed with this Agreement, will apply

May 3, 2022 S-1/A

As filed with the Securities and Exchange Commission on May 3, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on May 3, 2022 Registration No.

April 20, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date Earliest Event Reported): April 14, 2022 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or Other Jurisdiction (Commission (IRS Employer of

April 8, 2022 CORRESP

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April 8, 2022 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance 100 F.

April 8, 2022 S-1/A

As filed with the Securities and Exchange Commission on April 8, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on April 8, 2022 Registration No.

April 8, 2022 EX-FILING FEES

Filing Fee Table

Exhibit 107.1 Calculation of Filing Fee Tables ? S-1 ?Energy Vault Holdings, Inc. ?Newly Registered Securities ? ? Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered (1) ? Proposed Maximum Offering Price Per Unit ? Maximum Aggregate Offering Price Fee Rate ? Amount of Registration Fee Newly Registered Securities Fees to be Paid Equity Common Stock, par value

March 31, 2022 EX-99.2

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ENERGY VAULT

Exhibit 99.2 MANAGEMENT?S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ENERGY VAULT The following discussion and analysis provide information which Energy Vault?s management believes is relevant to an assessment and understanding of Energy Vault?s consolidated results of operations and financial condition. The discussion should be read together with the audited conso

March 31, 2022 8-K/A

Financial Statements and Exhibits

? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 31, 2022 (February 11, 2022) ? Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) ? Delaware 001-39982 85-3230987 (State

March 31, 2022 EX-99.1

Report of Independent Registered Public Accounting Firm

Exhibit 99.1 Report of Independent Registered Public Accounting Firm Shareholders and Board of Directors Energy Vault Holdings, Inc. Westlake Village, CA 91361 Opinion on the Consolidated Financial Statements We have audited the accompanying consolidated balance sheets of Energy Vault, Inc.??(the ?Company?) as of December 31, 2021 and 2020, the related consolidated statements of operations and com

March 9, 2022 CORRESP

Energy Vault Holdings, Inc. 4360 Park Terrace Drive, Suite 100 Westlake Village, California 93161

Energy Vault Holdings, Inc. 4360 Park Terrace Drive, Suite 100 Westlake Village, California 93161 March 9, 2022 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F. Street N.E. Washington, D.C. 20549 Attn: Bradley Ecker Re: Energy Vault Holdings, Inc. Withdrawal of Acceleration Request - Registration Statement on Form S-1 (File No. 333-262720) Ladies and Gentlemen: R

March 8, 2022 S-1/A

As filed with the Securities and Exchange Commission on March 8, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on March 8, 2022 Registration No.

March 7, 2022 CORRESP

Energy Vault Holdings, Inc. 4360 Park Terrace Drive, Suite 100 Westlake Village, California 93161

Energy Vault Holdings, Inc. 4360 Park Terrace Drive, Suite 100 Westlake Village, California 93161 March 8, 2022 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F. Street N.E. Washington, D.C. 20549 Attn:???????Bradley Ecker Re: Energy Vault Holdings, Inc. Registration Statement on Form S-1 (File No. 333-262720) Ladies and Gentlemen: Energy Vault Holdings, Inc. (the

February 22, 2022 EX-99

JOINT FILING AGREEMENT

Exhibit 99 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree that they are jointly filing this statement on Schedule 13G.

February 22, 2022 SC 13G

NRGV / Energy Vault Holdings Inc / SB INVESTMENT ADVISERS (UK) LTD - SC 13G Passive Investment

Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G (Rule 13d-102) Information to be Included in Statements Filed Pursuant to ? 240.13d-1(b), (c) and (d) and Amendments Thereto Filed Pursuant to ? 240.13d-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. )* Energy Vault Holdings, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 29280W109 (CUSIP Number)

February 22, 2022 SC 13D

NRGV / Energy Vault Holdings Inc / Piconi Robert - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-l(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) (Amendment No. )* Energy Vault Holdings, Inc. (Name of Issuer) Common Stock, $0.0001 par value per share (Title of Class of Securities) 29280W109 (CUSIP Number) Robert Pico

February 16, 2022 SC 13D

NRGV / Energy Vault Holdings Inc / Helena Special Investments LLC - SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 ENERGY VAULT HOLDINGS, INC. (Name of Issuer) CLASS A COMMON STOCK, PAR VALUE $0.0001 PER SHARE (Title of Class of Securities) 29280W 109 (CUSIP Number) Matthew L. Saunders c/o Helena Special Investments LLC 515 S Flower Street, Suite 5100 Los Angeles, CA 90071 Tel: (424) 2

February 14, 2022 EX-10.7

Consulting Agreement dated as of February 14, 2022, by and between Energy Vault, Inc. and EVFY, Inc.

Exhibit 10.7 CONSULTING AGREEMENT This Consulting Agreement (?Agreement?) is made and entered into as of February 14, 2022 (the ?Effective Date?), by Energy Vault, Inc., a Delaware corporation (the ?Company?), and EVFY, Inc., a Delaware corporation (?Consultant?). RECITALS A. The Company is engaged in the business of designing, developing, and selling renewable energy storage products for utilitie

February 14, 2022 EX-3.2

Amended and Restated Certificate of Incorporation of Energy Vault Holdings, Inc.

Exhibit 3.2 Novus Capital Corporation II Second Amended and Restated Certificate of Incorporation Novus Capital Corporation II, a corporation organized and existing under the laws of the State of Delaware, hereby certifies as follows: 1. The name of the corporation is Novus Capital Corporation II, which was the name under which the corporation was originally incorporated. The date of the filing of

February 14, 2022 EX-10.31

Office Lease dated as of November 15, 2021, by and between Energy Vault, Inc. and AusLo Properties LLC

Exhibit 10.31 STANDARD MULTI-TENANT OFFICE LEASE 1. Basic Provisions ("Basic Provisions"). 1.1 Parties. This Lease ("Lease"), dated for reference purposes only November 15, 2021, is made by and between AusLo Properties LLC ("Lessor") and Energy Vault Inc. ("Lessee"), (collectively the "Parties", or individually a "Party"). This Lease supersedes any previous lease and agreements. 1.2(a) Premises: T

February 14, 2022 S-1

Power of Attorney

Table of Contents As filed with the Securities and Exchange Commission on February 14, 2022 Registration No.

February 14, 2022 EX-99.1

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

Exhibit 99.1 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION Defined terms included below shall have the same meaning as terms defined and included elsewhere in this Form 8-K and, if not defined in the Form 8-K, the Proxy Statement/Prospectus. Introduction As a result of the Business Combination and the other transactions contemplated by the Business Combination Agreement, NCCII Merge

February 14, 2022 EX-10.2

Amended and Restated Registration Rights Agreement, by and among the Company and certain stockholders and equityholders of the Company

Exhibit 10.2 AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT ? This Registration Rights Agreement (this ?Agreement?) is made and entered into as of February , 2022 (the ?Effective Date?) by and among Novus Capital Corporation II, a Delaware corporation (the ?Company?) and the parties listed on Schedule A hereto (each, a ?Holder? and collectively, the ?Holders?). Any capitalized term used but no

February 14, 2022 8-K

Changes in Control of Registrant, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Change in Shell Company Status, Entry into a Material Definitive Agreement, Material Modification to Rights of Security Holders, Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date Earliest Event Reported): February 11, 2022 Energy Vault Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39982 85-3230987 (State or Other Jurisdiction (Commission (IRS Employer

February 14, 2022 EX-3.1

Amended and Restated Bylaws of Energy Vault Holdings, Inc.

Exhibit 3.1 Energy Vault Holdings, Inc. Amended and Restated Bylaws Table of Contents Page Article I Stockholders 1 1.1 Place of Meetings 1 1.2 Annual Meeting 1 1.3 Special Meetings 1 1.4 Notice of Meetings 1 1.5 Voting List 2 1.6 Quorum 2 1.7 Adjournments 3 1.8 Voting and Proxies 3 1.9 Action at Meeting 3 1.10 Nomination of Directors 3 1.11 Notice of Business at Annual Meetings 7 1.12 Conduct of

February 14, 2022 EX-10.5

Sponsor Restricted Stock Agreement, by and among Novus, Novus Initial Stockholders and Energy Vault

EX-10.5 4 nrgv-20220215xex10d5.htm EXHIBIT 10.5 Exhibit 10.5 AMENDED AND RESTATED SPONSOR RESTRICTED STOCK AGREEMENT This AMENDED AND RESTATED RESTRICTED STOCK AGREEMENT, dated as of February 11, 2022 (“Agreement”), by and among NOVUS CAPITAL CORPORATION II, a Delaware corporation (“Novus”), the stockholders of Novus listed on Exhibit A hereto (the “Stockholders”) and Energy Vault, Inc., a Delawar

February 14, 2022 SC 13G/A

NXU / Novus Capital Corporation II / CITADEL ADVISORS LLC - NOVUS CAPITAL CORP II Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO ? 240.13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO ? 240.13d-2 (Amendment No. 1)* Novus Capital Corp II (Name of Issuer) Class A common stock, par value $0.0001 per share (the ?Shares?) (Title of Class of Securities) 6701

February 14, 2022 EX-FILING FEES

Filing Fee Table

Exhibit 107.1 ? Calculation of Filing Fee Tables ? S-1 ? Energy Vault Holdings, Inc. ? Newly Registered Securities ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered (1) ? Proposed Maximum Offering Price Per Unit ? Maximum Aggregate Offering Price Fee Rate ? Amount of Registration Fee ? Newly Registered S

February 14, 2022 EX-16.1

Letter from Marcum, LLP

Exhibit 16.1 February 14, 2022 Office of the Chief Accountant Securities and Exchange Commission 100 F Street, NE Washington, D.C. 20549 We have read the statements made by Energy Vault Holdings, Inc. (formerly Novus Capital Corporation II) included under Item 4.01 of its Form 8-K dated February 14, 2022. We agree with the statements concerning our Firm under Item 4.01. We are not in a position to

February 14, 2022 EX-10.4

Form of Lock-Up Agreement

Exhibit 10.4 , 2022 Novus Capital Corporation II 8556 Oakmont Lane Indianapolis, IN 46260 Re: Lock-Up Agreement ? Ladies and Gentlemen: This letter (this ?Letter Agreement?) is being delivered to you in accordance with the Business Combination Agreement and Plan of Reorganization (the ?BCA?) entered into by and among Novus Capital Corporation II, a Delaware corporation (the ?Company?), NCCII Merge

February 14, 2022 EX-10.5

Sponsor Restricted Stock Agreement by and among Novus, Novus Initial Stockholders, and Energy Vault

Exhibit 10.5 AMENDED AND RESTATED SPONSOR RESTRICTED STOCK AGREEMENT This AMENDED AND RESTATED RESTRICTED STOCK AGREEMENT, dated as of February 11, 2022 (?Agreement?), by and among NOVUS CAPITAL CORPORATION II, a Delaware corporation (?Novus?), the stockholders of Novus listed on Exhibit A hereto (the ?Stockholders?) and Energy Vault, Inc., a Delaware corporation (the ?Company?). WHEREAS, Novus wa

February 14, 2022 EX-21.1

List of Subsidiaries

EX-21.1 10 tm225795d16ex21-1.htm EXHIBIT 21.1 Exhibit 21.1 SUBSIDIARIES OF ENERGY VAULT HOLDINGS, INC. DOMESTIC COMPANIES Name Jurisdiction of Incorporation Energy Vault, Inc. Delaware FOREIGN COMPANIES Name Jurisdiction of Incorporation Energy Vault SA Switzerland

February 14, 2022 EX-10.2

Amended and Restated Registration Rights Agreement, by and among the Company and certain stockholders and equity-holders of the Company

Exhibit 10.2 AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT This Registration Rights Agreement (this ?Agreement?) is made and entered into as of February , 2022 (the ?Effective Date?) by and among Novus Capital Corporation II, a Delaware corporation (the ?Company?) and the parties listed on Schedule A hereto (each, a ?Holder? and collectively, the ?Holders?). Any capitalized term used but not

February 14, 2022 EX-10.4

Form of Lock-Up Agreement

?Exhibit 10.4 ?????? ??? ????, 2022 Novus Capital Corporation II 8556 Oakmont Lane Indianapolis, IN 46260 Re: Lock-Up Agreement Ladies and Gentlemen: This letter (this ?Letter Agreement?) is being delivered to you in accordance with the Business Combination Agreement and Plan of Reorganization (the ?BCA?) entered into by and among Novus Capital Corporation II, a Delaware corporation (the ?Company?

February 14, 2022 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on February 25, 2022, pursuant to the provisions of Rule 12d2-2 (a).

February 11, 2022 SC 13G

NXU / Novus Capital Corporation II / Weiss Asset Management LP Passive Investment

=============================================================================== UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

February 10, 2022 425

Filed by Novus Capital Corporation II pursuant to

Filed by Novus Capital Corporation II pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Novus Capital Corporation II Commission File No.

February 10, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 10, 2022 425

Filed by Novus Capital Corporation II pursuant to

Filed by Novus Capital Corporation II pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Novus Capital Corporation II Commission File No.

February 10, 2022 SC 13G/A

NXU / Novus Capital Corporation II / ADAGE CAPITAL PARTNERS GP, L.L.C. - NOVUS CAPITAL CORPORATION II Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Novus Capital Corporation II (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 67012W104 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate t

February 10, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 10, 2022 NOVUS CAPITAL CORPORATION II (Exact Name of Registrant as Specified in its Charter) Delaware 001-39982 85-3230987 (State or Other Jurisdiction (Commission (IRS Emplo

February 8, 2022 425

Novus Capital Corporation II Reminds Stockholders to Vote in Favor of the Proposed Business Combination with Energy Vault Before February 9, 2022

Filed by Novus Capital Corporation II pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Novus Capital Corporation II Commission File No.

February 7, 2022 425

Energy Vault to Host Fireside Chat with IPO Edge to Discuss Business Combination, Gravity-Based Energy Storage and Recent Commercial Partnerships

Filed by Novus Capital Corporation II pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Novus Capital Corporation II Commission File No.

February 7, 2022 425

Filed by Novus Capital Corporation II pursuant to

Filed by Novus Capital Corporation II pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Novus Capital Corporation II Commission File No.

February 3, 2022 425

Filed by Novus Capital Corporation II pursuant to

Filed by Novus Capital Corporation II pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Novus Capital Corporation II Commission File No.

February 3, 2022 425

Filed by Novus Capital Corporation II pursuant to

Filed by Novus Capital Corporation II pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Novus Capital Corporation II Commission File No.

February 3, 2022 425

Filed by Novus Capital Corporation II pursuant to

Filed by Novus Capital Corporation II pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Novus Capital Corporation II Commission File No.

February 3, 2022 425

Filed by Novus Capital Corporation II pursuant to

Filed by Novus Capital Corporation II pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Novus Capital Corporation II Commission File No.

February 2, 2022 425

Filed by Novus Capital Corporation II pursuant to

Filed by Novus Capital Corporation II pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Novus Capital Corporation II Commission File No.

February 2, 2022 425

Filed by Novus Capital Corporation II pursuant to

Filed by Novus Capital Corporation II pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Novus Capital Corporation II Commission File No.

February 2, 2022 425

Filed by Novus Capital Corporation II pursuant to

Filed by Novus Capital Corporation II pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Novus Capital Corporation II Commission File No.

February 2, 2022 425

First gravity-based storage agreement between a U.S. and Chinese company to support China’s stated goals of Carbon Peak by 2030 and Carbon Neutrality by 2060 $50 million new investment subscription at $10 per share upsizes previously announced and al

Filed by Novus Capital Corporation II pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Novus Capital Corporation II Commission File No.

February 1, 2022 8-K

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 29, 2022 NOVUS CAPITAL CORPORATION II (Exact Name of Registrant as Specified in its Charter) Delaware 001-39982 85-3230987 (State or Other Jurisdiction (Commission (IRS Employ

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