NRGV CFO has 28,738 shares withheld for taxes

Energy Vault Holdings, Inc. Chief Financial Officer Michael Thomas Beer had 28,738 shares of Common Stock withheld by the company at $3.30 per share to cover tax obligations on the vesting of restricted stock units.

Accepted by SEC EDGAR 04/02/2026 - 04:15 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Energy Vault Holdings, Inc. Chief Financial Officer Michael Thomas Beer had 28,738 shares of Common Stock withheld by the company at $3.30 per share to cover tax obligations on the vesting of restricted stock units. This was a tax-withholding disposition, not an open-market sale. After this transaction, he directly holds 1,075,945 shares of the company’s common stock.

Insider Trade Summary

Exercise Price or Tax Liability: 28,738 shares

Exercise Price or Tax Liability 1 txn

Insider Beer Michael Thomas

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	28,738	$3.30	$95K

Holdings After Transaction: Common Stock — 1,075,945 shares (Direct)

Holdings Before and After: Common Stock, 1,104,683 to 1,075,945 shares (Direct)

Footnotes (1)

1. F1. Represents shares withheld by the Issuer to satisfy the reporting person's tax liability on vesting of restricted stock units. Not a market sale.

Key Figures

Shares withheld for taxes: 28,738 shares Withholding price: $3.30 per share Shares held after transaction: 1,075,945 shares

3 metrics

Shares withheld for taxes 28,738 shares Common Stock withheld to satisfy RSU tax liability

Withholding price $3.30 per share Value used for tax-withholding disposition

Shares held after transaction 1,075,945 shares Direct holdings after tax-withholding disposition

Key Terms

restricted stock units, tax-withholding disposition, Common Stock

3 terms

restricted stock units financial

"tax liability on vesting of restricted stock units. Not a market sale"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax-withholding disposition financial

"transaction_action": "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

Common Stock financial

"security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did NRGV’s CFO report in this Form 4 filing?

NRGV’s CFO, Michael Thomas Beer, reported a tax-withholding disposition of 28,738 shares of Common Stock at $3.30 per share. These shares were withheld by the company to satisfy tax liabilities from vesting restricted stock units, rather than sold in the open market.

Was the NRGV CFO’s Form 4 transaction an open-market sale?

No, the transaction was not an open-market sale. The 28,738 NRGV shares were withheld by Energy Vault Holdings to cover the CFO’s tax liability on vesting restricted stock units, as noted in the footnote, and are classified as a tax-withholding disposition.

How many NRGV shares were withheld for taxes from the CFO?

A total of 28,738 shares of NRGV Common Stock were withheld at $3.30 per share. This withholding satisfied Chief Financial Officer Michael Thomas Beer’s tax obligations tied to vesting restricted stock units, rather than representing discretionary buying or selling activity.

How many NRGV shares does the CFO hold after this Form 4 transaction?

After the tax-withholding disposition, NRGV’s CFO directly holds 1,075,945 shares of Common Stock. This figure reflects his position following the company’s withholding of 28,738 shares to cover tax liabilities associated with restricted stock unit vesting.

What does the footnote in the NRGV CFO Form 4 explain?

The footnote explains that the reported 28,738 shares were withheld by Energy Vault Holdings to satisfy the CFO’s tax liability on vesting restricted stock units. It also clarifies that this disposition is not a market sale, distinguishing it from ordinary share trading activity.

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

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SEC Form 4

FORM 4

UNITED 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^*

Beer Michael Thomas

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/31/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/31/2026		F		28,738(1)	D	$3.3	1,075,945	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents shares withheld by the Issuer to satisfy the reporting person's tax liability on vesting of restricted stock units. Not a market sale.

Remarks:

	/s/ Amy Blakeway, Chief Legal Officer	04/02/2026
	** Signature of Reporting Person	Date
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)