MentionFox
Home › Stakes › Energy Vault Holdings, Inc.
5%+ stakes · Schedule 13D and 13G

Energy Vault Holdings, Inc.: 5%+ holders

Who has reported owning 5% or more of Energy Vault Holdings, Inc., from Schedule 13D and 13G filings: each holder's stake as filed, the timeline, and the purpose each 13D states, quoted.

At 5% or more4
Filings4
Latest filing2026-08-14

Energy Vault Holdings, Inc. has 4 Schedule 13D or 13G filings on record since 2026-04-02. 4 holders' latest filing reports 5% or more of common stock, par value $0.0001 per share. Each figure below is the holder's own, as filed, with the filing linked.

Holders

HolderPercentSharesLatestEvent date
Robert Piconi13.4%23,417,827SCHEDULE 13D/A, 2026-04-022023-10-31
SB Investment Advisers (UK) Limited8.9%15,535,631SCHEDULE 13G/A, 2026-05-152026-03-31
Craig Effron6.35%11,550,000SCHEDULE 13G, 2026-08-142026-02-27
BlackRock, Inc.6%10,651,131SCHEDULE 13G, 2026-07-282026-06-30

Purpose of Transaction (Item 4)

Robert Piconi

Settlement Agreement and Irrevocable Proxies On February 17, 2026, the Reporting Person disposed of 3,112,806 shares of Common Stock (the "Settlement Shares") pursuant to an agreement involving the transfer of shares, among other family-related matters (the "Settlement Agreement"). Pursuant to the Settlement Agreement, the Reporting Person was provided an irrevocable proxy to vote or act by written consent with regard to the Settlement Shares until the earlier of the death or incapacity of the recipient of the Settlement Shares or the bona fide transfer of the Settlement Shares for value. In addition, the Reporting Person was also granted irrevocable proxies by the trustees of certain family trusts, of which the Reporting Person no longer serves as investment advisor as a result of the Settlement Agreement. Accordingly, the Reporting Person will retain voting control over the Settlement Shares and the shares held by the family trusts. General Any actions the Reporting Person might undertake with respect to the securities beneficially owned by him in the Issuer may be made at any time and from time to time without prior notice and will be dependent upon the Reporting Person's review of numerous factors, including, but not limited to: an ongoing evaluation of the Issuer's business, financial condition, operations and prospects; price levels of the Issuer's securities; general market, industry and economic conditions; the relative attractiveness of alternative business and …The first part of Item 4 of the SCHEDULE 13D/A filed 2026-04-02; the filing has the rest

Timeline

FiledHolderPercentFiling
2026-04-02Robert Piconi13.4%SCHEDULE 13D/A
2026-05-15SB Investment Advisers (UK) Limited8.9%SCHEDULE 13G/A
2026-07-28BlackRock, Inc.6%SCHEDULE 13G
2026-08-14Craig Effron6.35%SCHEDULE 13G

Tools for this story

Each opens in a new tab, filled in for Energy Vault Holdings, Inc.. With no account yet, you sign up free and land on the result.

Where this comes from

Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.

Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.

Cite this page

Permanent URL: https://mentionfox.com/stakes/energy-vault-holdings
Last updated 2026-09-27
Primary record: SEC filing 1 · SEC filing 2 · SEC filing 3 · SEC filing 4
Energy Vault Holdings, Inc. 5%+ holders: 4 at 5% or more, largest Robert Piconi 13.4%. MentionFox, 2026-09-27. https://mentionfox.com/stakes/energy-vault-holdings