Energy Vault Holdings, Inc. filings document material events, operating results, financing activity, governance matters and capital-structure disclosures for a New York Stock Exchange-listed energy storage company. Its Form 8-K reports include quarterly and annual financial results, investor presentation disclosures, material agreements, direct financial obligations and transactions involving convertible senior notes, capped call arrangements and related balance-sheet actions.
The company’s proxy materials cover annual-meeting voting, board governance and stockholder matters. Its filings also identify NRGV common stock, par value $0.0001 per share, as the registered equity security and disclose the company’s emerging growth company status, along with formal exhibits and Regulation FD materials tied to supplemental financial and operational information.
Robert Piconi, Chief Executive Officer and director of Energy Vault Holdings, Inc. (NRGV), reported an insider purchase on 09/19/2025. The filing shows a weighted-average purchase of 17,500 shares of common stock at $3.0214 per share, executed in multiple trades between $2.9925 and $3.04. After the reported purchase, the filing lists 20,199,884 shares held directly by the reporting person and two indirect holdings of 4,307,946 shares each held by two Delaware trusts for which he serves as investment advisor. The form is a routine Section 16 disclosure documenting the transaction and beneficial ownership.
Stephanie Unwin, a director of Energy Vault Holdings, Inc. (NRGV), was awarded 140,114 restricted stock units (RSUs) on 09/16/2025 at no cash price. Each RSU is a contingent right to one share of common stock and the award vests subject to Ms. Unwin's continued board service after the first anniversary of the Vesting Commencement Date of May 30, 2025. Following the reported grant, the filing shows Ms. Unwin beneficially owns 278,092 shares. The Form 4 was signed by the company’s Chief Legal Officer on 09/18/2025.
Larry Paulson, a director of Energy Vault Holdings, Inc. (NRGV), reported equity awards and existing holdings on Form 4. The filing shows a transaction dated 09/16/2025 reflecting the grant of 161,132 restricted stock units (RSUs) with a reported price of $0. After the reported award, Mr. Paulson's direct beneficial ownership is shown as 496,768 shares.
The filing also discloses 609,256 shares held directly by the Larry M and Gretchen V Paulson Family Trust dated September 4, 2019; Mr. Paulson is a trustee and disclaims beneficial ownership except to the extent of any pecuniary interest. The RSUs vest subject to continued board service after the first anniversary of a Vesting Commencement Date of May 30, 2025. The form is signed by the company Chief Legal Officer on 09/18/2025.
Mary Beth Mandanas, a director of Energy Vault Holdings, Inc. (NRGV), received 161,132 restricted stock units (RSUs) on 09/16/2025. Each RSU represents a contingent right to one share of common stock and vests after the first anniversary of the Vesting Commencement Date, which is May 30, 2025, subject to her continued board service. Following the award, the filing reports she beneficially owns 345,838 shares. The Form 4 was signed by the company’s Chief Legal Officer on 09/18/2025 and discloses this non-derivative equity grant at a $0 transaction price because it is an RSU award rather than an open-market purchase.
Theresa M. Fariello, a director of Energy Vault Holdings, Inc. (NRGV), was granted 140,114 restricted stock units (RSUs) on 09/16/2025. Each RSU represents a contingent right to one share of common stock and the award was reported as having a $0 price. Following the grant, the reporting person beneficially owns 299,064 shares in total.
The RSUs vest subject to continued Board service after the first anniversary of the Vesting Commencement Date, which is May 30, 2025. The Form 4 was signed on 09/18/2025 by the company’s Chief Legal Officer on behalf of the reporting person.
Dylan Hixon, a director of Energy Vault Holdings, Inc. (NRGV), received an award of 98,449 restricted stock units (RSUs) on 09/16/2025. Each RSU converts to one share of common stock and vests subject to his continued Board service after the third anniversary of the Vesting Commencement Date of March 31, 2025. Following the reported transaction Mr. Hixon directly beneficially owns 98,449 shares and indirectly beneficially owns 900,065 shares through Arden Road Investments LLC, which is connected to the Dylan Trust under the JMH-ICH Lex Trust. The Form 4 was signed and filed on 09/18/2025.
Energy Vault Holdings director Thomas R. Ertel received a grant of 161,132 restricted stock units (RSUs) on 09/16/2025, each RSU representing a contingent right to one share of common stock. The RSUs vest subject to his continued board service after the first anniversary of the Vesting Commencement Date of May 30, 2025. Following the award, the reporting person beneficially owns 360,338 shares. The Form 4 was filed as a single reporting person filing and is signed by the company's Chief Legal Officer on behalf of the reporting person.
Insider purchase reported by Energy Vault Holdings, Inc. (NRGV) — Director Larry Paulson purchased 20,000 shares of Energy Vault common stock on 09/18/2025 at a price of $2.3999 per share, increasing his direct holdings to 335,636 shares. In addition, 609,256 shares are held indirectly by the Larry M and Gretchen V Paulson Family Trust; Mr. Paulson is a trustee and disclaims beneficial ownership except to the extent of any pecuniary interest. The Form 4 was signed by the companys Chief Legal Officer.
Energy Vault Holdings, Inc. (NRGV) reporting person Robert Piconi, identified as Director, Chief Executive Officer and a 10% owner, filed a Form 4 disclosing a purchase of company common stock on 09/17/2025. The filing reports an acquisition code P for 50,000 shares at a weighted-average price of $2.3024 (prices ranged $2.28–$2.33). After the purchase the reporting person directly beneficially owns 20,182,384 shares. The filing also discloses indirect holdings of 4,307,946 shares in each of two Delaware trusts for which he serves as investment advisor. The report is signed by the company’s Chief Legal Officer.
Robert Piconi, Chief Executive Officer, director and 10% owner of Energy Vault Holdings, Inc. (NRGV), purchased 25,000 shares of the issuer's common stock on 09/16/2025. The transaction was reported on Form 4 and executed at a weighted average price of $2.2114, with individual trade prices ranging from $2.18 to $2.225. After the purchase, the report shows 20,132,384 shares beneficially owned directly by the reporting person. The filer offers to provide transaction-level detail on request.
In addition to direct holdings, the filing discloses two indirect holdings of 4,307,946 shares each held by the Piconi 2021 Delaware Trust and the Piconi Family 2021 Delaware Trust, for which Mr. Piconi serves as investment advisor. The Form 4 is signed by the company’s Chief Legal Officer as authorized filer.