STOCK TITAN

Energy Vault (NRGV) director buys 27K shares via family trust

(Moderate)
(Positive)
Form Type
4

Rhea-AI Filing Summary

Energy Vault Holdings, Inc. director Dylan Hixon reported an indirect open-market purchase of 27,472 shares of common stock of NRGV on 2026-08-17 at $3.878 per share. The purchased shares are held by the Dylan Hixon Childrens Trust FBO Casimir R. Hixon, for which Mr. Hixon is sole trustee and may be deemed to have beneficial ownership, while disclaiming beneficial ownership except to the extent of his pecuniary interest. The filing also reports indirect holdings through additional family trusts, his son, and Arden Road Investments LLC, and direct ownership of 117,602 shares of common stock as of that date.

Positive

  • None.

Negative

  • None.
Insider Hixon Dylan
Role Director
Bought 27,472 shs ($107K)
Type Security Shares Price Value
Purchase Common Stock F1 27,472 $3.878 $107K
holding Common Stock F2 -- -- --
holding Common Stock F3 -- -- --
holding Common Stock F4 -- -- --
holding Common Stock -- -- --
holding Common Stock F5 -- -- --
Holdings After Transaction: Common Stock — 27,472 shares (Indirect, Held by Dylan Hixon Childrens Trust FBO Casimir R. Hixon); Common Stock — 26,845 shares (Indirect, Held by DHH Hixon Family Great Grandchildrens Trust FBO Casimir R. Hixon); Common Stock — 26,809 shares (Indirect, Held by DHH Hixon Family Great Grandchildrens Trust FBO Soren A. Hixon); Common Stock — 31,864 shares (Indirect, By son); Common Stock — 117,602 shares (Direct); Common Stock — 900,065 shares (Indirect, Held by Arden Road Investments LLC)
Footnotes (5)
  1. F1. Mr. Hixon is the sole trustee of the Dylan Hixon Childrens Trust FBO Casimir R. Hixon. Mr. Hixon may be deemed to have beneficial ownership of the securities held by such trust. Mr. Hixon disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein
  2. F2. Mr. Hixon is the sole trustee of the DHH Hixon Family Great Grandchildrens Trust FBO Casimir R. Hixon. Mr. Hixon may be deemed to have beneficial ownership of the securities held by such trust. Mr. Hixon disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.
  3. F3. Mr. Hixon is the sole trustee of the DHH Hixon Family Great Grandchildrens Trust FBO Soren A. Hixon. Mr. Hixon may be deemed to have beneficial ownership of the securities held by such trust. Mr. Hixon disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.
  4. F4. This transaction involved the purchase of shares of common stock by the reporting persons son. The reporting person disclaims beneficial ownership of the securities held by his son, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.
  5. F5. Mr. Hixon is the sole trustee of the "Dylan Trust under the JMH-ICH Lex Trust" which holds shares in Arden Road Investments LLC. Mr. Hixon may be deemed to have beneficial ownership of the securities held by the Dylan Trust. Mr. Hixon disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.
Shares purchased 27,472 shares Common Stock purchased indirectly on 2026-08-17
Purchase price $3.878 per share Price for 27,472-share indirect purchase on 2026-08-17
Direct holdings 117,602 shares Common Stock directly owned by Dylan Hixon following reported holdings
Trust holdings (Casimir Children’s Trust) 27,472 shares Held by Dylan Hixon Childrens Trust FBO Casimir R. Hixon after purchase
Trust holdings (Great Grandchildrens Trust Casimir) 26,845 shares Indirectly held by DHH Hixon Family Great Grandchildrens Trust FBO Casimir R. Hixon
Trust holdings (Great Grandchildrens Trust Soren) 26,809 shares Indirectly held by DHH Hixon Family Great Grandchildrens Trust FBO Soren A. Hixon
Son's holdings 31,864 shares Common Stock held by reporting person’s son
Arden Road Investments LLC holdings 900,065 shares Indirectly reported as held by Arden Road Investments LLC
beneficial ownership financial
"may be deemed to have beneficial ownership of the securities held"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
pecuniary interest financial
"disclaims beneficial ownership of such securities except to the extent of his pecuniary interest"
indirect ownership financial
"ownership_type":"indirect","ownership_code":"I""
trustee financial
"Mr. Hixon is the sole trustee of the Dylan Hixon Childrens Trust"
A trustee is a person or institution legally appointed to hold and manage assets or enforce an agreement on behalf of other people (beneficiaries). Think of a trustee as a neutral referee or custodian who must act in the beneficiaries’ best interests, follow the trust or contract rules, and handle distributions, recordkeeping and enforcement. Investors care because a trustworthy trustee protects their rights, ensures promised payments or remedies are delivered, and can influence recoveries if things go wrong.
Section 16 regulatory
"beneficial owner of the securities for purposes of Section 16 or for any other purpose"
Section 16 is a U.S. securities law rule that governs the trading and disclosure obligations of company insiders — typically officers, directors and large shareholders — to promote transparency and deter unfair profit-taking. It requires insiders to publicly report their stock trades and allows companies or the issuer to reclaim quick, short-term profits from certain insider trades, like a scoreboard and a refund policy that help investors see and limit possible insider advantage.

FAQ

What transaction did NRGV director Dylan Hixon report on this Form 4?

Hixon reported an indirect purchase of 27,472 NRGV common shares on 2026-08-17 at $3.878 per share, executed for the Dylan Hixon Childrens Trust FBO Casimir R. Hixon, where he serves as sole trustee and may be deemed to have beneficial ownership.

Was the NRGV Form 4 transaction by Dylan Hixon a buy or a sell?

The Form 4 shows a net buy. It reports one open-market purchase of 27,472 shares of Energy Vault Holdings, Inc. common stock at $3.878 per share, with no reported sales or derivative exercises on the same date.

How many NRGV shares did the Dylan Hixon Childrens Trust hold after the reported purchase?

After the reported transaction, the Dylan Hixon Childrens Trust FBO Casimir R. Hixon held 27,472 NRGV common shares. Mr. Hixon is sole trustee and may be deemed to have beneficial ownership, while disclaiming beneficial ownership except to the extent of his pecuniary interest.

What direct NRGV shareholding does Dylan Hixon report on this Form 4?

The filing lists 117,602 shares of NRGV common stock as directly owned by Dylan Hixon as of 2026-08-17. This is separate from his various indirect holdings through family trusts, his son, and Arden Road Investments LLC.

Does the NRGV Form 4 indicate that the transaction was made under a Rule 10b5-1 plan?

The filing’s Rule 10b5-1 checkbox is not marked as affirming a trading plan, and the footnotes do not describe a pre-arranged plan. The transaction is characterized simply as a purchase by the relevant trust or related party.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Hixon Dylan

(Last)(First)(Middle)
4165 EAST THOUSAND OAKS BLVD, SUITE 100

(Street)
WESTLAKE VILLAGE CALIFORNIA 91362

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Energy Vault Holdings, Inc. [ NRGV ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/17/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock08/17/2026P27,472A$3.87827,472IHeld by Dylan Hixon Childrens Trust FBO Casimir R. Hixon(1)
Common Stock26,845IHeld by DHH Hixon Family Great Grandchildrens Trust FBO Casimir R. Hixon(2)
Common Stock26,809IHeld by DHH Hixon Family Great Grandchildrens Trust FBO Soren A. Hixon(3)
Common Stock31,864IBy son(4)
Common Stock117,602D
Common Stock900,065IHeld by Arden Road Investments LLC(5)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. Mr. Hixon is the sole trustee of the Dylan Hixon Childrens Trust FBO Casimir R. Hixon. Mr. Hixon may be deemed to have beneficial ownership of the securities held by such trust. Mr. Hixon disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein
2. Mr. Hixon is the sole trustee of the DHH Hixon Family Great Grandchildrens Trust FBO Casimir R. Hixon. Mr. Hixon may be deemed to have beneficial ownership of the securities held by such trust. Mr. Hixon disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.
3. Mr. Hixon is the sole trustee of the DHH Hixon Family Great Grandchildrens Trust FBO Soren A. Hixon. Mr. Hixon may be deemed to have beneficial ownership of the securities held by such trust. Mr. Hixon disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.
4. This transaction involved the purchase of shares of common stock by the reporting persons son. The reporting person disclaims beneficial ownership of the securities held by his son, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.
5. Mr. Hixon is the sole trustee of the "Dylan Trust under the JMH-ICH Lex Trust" which holds shares in Arden Road Investments LLC. Mr. Hixon may be deemed to have beneficial ownership of the securities held by the Dylan Trust. Mr. Hixon disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.
Remarks:
/s/ Amy Blakeway, Chief Legal Officer08/18/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)