Energy Vault delays 10-Q filing to May 18, 2026

Energy Vault Holdings, Inc. notifies the SEC it could not timely file its Quarterly Report on Form 10-Q for the three months ended March 31, 2026.

Rhea-AI Filing Summary

Energy Vault Holdings, Inc. notifies the SEC it could not timely file its Quarterly Report on Form 10-Q for the three months ended March 31, 2026. The company plans to file the Form 10-Q on May 18, 2026. The delay is attributed to a lender discussion regarding a subsequent event and an associated financial statement reclassification.

Insights

SEC filings specialist

Routine Rule 12b-25 notice tied to a lender discussion and reclassification.

The notice states the company will file its Form 10-Q for the quarter ended March 31, 2026 on May 18, 2026. It cites a lender discussion and an associated financial statement reclassification as the reason for the delay.

Timing and the exact nature of the reclassification are not detailed here; subsequent filings should disclose the reclassification and any lender agreements or covenants that affect reported amounts.

Key Figures

Quarter ended: March 31, 2026 Planned filing date: May 18, 2026 CUSIP: 29280W109

3 metrics

Quarter ended March 31, 2026 period covered by the delayed Form 10-Q

Planned filing date May 18, 2026 date company intends to file the Form 10-Q

CUSIP 29280W109 identifier shown on the notice cover page

Key Terms

Rule 12b-25, Form 10-Q, subsequent event, financial statement reclassification

4 terms

Rule 12b-25 regulatory

"The extension of time is due to a lender discussion on a subsequent event"

Rule 12b-25 is an SEC filing provision that lets a company notify regulators and the public that it cannot file a required periodic report (like a quarterly or annual report) on time and explains the reason for the delay. For investors, the notice is a formal heads-up that financial information will arrive late—similar to a company calling to say it will be late turning in homework—so it signals increased uncertainty and may affect trading and risk assessments until the filing is available.

Form 10-Q regulatory

"plans to submit its Quarterly Report on Form 10-Q for the three months ended March 31, 2026"

A Form 10-Q is a detailed report that publicly traded companies are required to file with regulators three times a year, providing an update on their financial health and business activities. It is important for investors because it offers timely insights into a company's performance, helping them make informed decisions about buying or selling stocks. Think of it as a regular check-up report that shows how well a company is doing.

subsequent event financial

"lender discussion on a subsequent event and associated financial statement reclassification"

An event that occurs after a company’s reporting period ends but before its financial statements are issued or finalized, which can change the amounts or disclosures in those statements. Like finding a large unpaid bill after closing a bank statement, these events matter to investors because they can alter a company’s reported performance or risks and therefore affect how current financial figures should be interpreted.

financial statement reclassification financial

"associated financial statement reclassification"

FAQ

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

Why did Energy Vault (NRGV) miss the Form 10-Q deadline?

The company cites a lender discussion and an associated financial statement reclassification as the cause. Energy Vault says it will file the Form 10-Q for the quarter ended March 31, 2026 on May 18, 2026, per the notice.

When will Energy Vault file its delayed 10-Q (NRGV)?

Energy Vault intends to file the Quarterly Report on Form 10-Q on May 18, 2026. The filing will cover the three months ended March 31, 2026 and follows the Rule 12b-25 notification.

Does the Rule 12b-25 notice indicate restated financials for NRGV?

The notice references a financial statement reclassification tied to a lender discussion but does not state a restatement. Details on any reclassification will appear in the forthcoming Form 10-Q filed on May 18, 2026.

Will the delay affect other SEC filings from Energy Vault (NRGV)?

The notice does not indicate additional delayed reports. It confirms prior periodic reports were filed and limits the delay to the Form 10-Q for the quarter ended March 31, 2026 to be filed on May 18, 2026.

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

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Accepted by SEC EDGAR 05/18/2026 - 05:12 PM Learn about SEC filing dates

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, 2026

☐

Transition Report on Form 10-K

☐

Transition Report on Form 20-F

☐

Transition Report on Form 11-K

☐

Transition Report on Form 10-Q

☐

Transition Report on Form N-SAR

For the Transition Period Ended:

Nothing in this form shall be construed to imply that the Commission has verified any information contained herein.

If the notification relates to a portion of the filing checked above, identify the Item(s) to which the notification relates: Not Applicable

 PART I — REGISTRANT INFORMATION

ENERGY VAULT HOLDINGS, INC.

Full Name of Registrant

Former Name if Applicable

4165 East Thousand Oaks Blvd., Suite 100

Address of Principal Executive Office (Street and Number)

Westlake Village, California 91362

City, State and Zip Code

PART II — RULES 12b-25(b) AND (c)

If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed. (Check box if appropriate)

			(a)			The reason described in reasonable detail in Part III of this form could not be eliminated without unreasonable effort or expense
☒			(b)			The subject annual report, semi-annual report, transition report on Form 10-K, Form 20-F, Form 11-K, Form N-SAR or Form N-CSR, or portion thereof, will be filed on or before the fifteenth calendar day following the prescribed due date; or the subject quarterly report or transition report on Form 10-Q or subject distribution report on Form 10-D, or portion thereof, will be filed on or before the fifth calendar day following the prescribed due date; and
			(c)			The accountant’s statement or other exhibit required by Rule 12b-25(c) has been attached if applicable.

PART III — NARRATIVE

State below in reasonable detail why Forms 10-K, 20-F, 11-K, 10-Q, 10-D, N-SAR, N-CSR, or the transition report or portion thereof, could not be filed within the prescribed time period.

Energy Vault Holdings, Inc. plans to submit its Quarterly Report on Form 10-Q for the three months ended March 31, 2026 on May 18, 2026, following this filing notification. The extension of time is due to a lender discussion on a subsequent event and associated financial statement reclassification.

PART IV — OTHER INFORMATION

(1)

Name and telephone number of person to contact in regard to this notification

Michael Beer

(805)

852-0000

(Name)

(Area Code)

(Telephone Number)

(2)

Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for such shorter period that the registrant was required to file such report(s) been filed? If answer is no, identify report(s).

☒ Yes    ☐ No

(3)

Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof?

☐ Yes    ☒  No

If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.

ENERGY VAULT HOLDINGS, INC.

(Name of Registrant as Specified in Charter)

has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.

Date:

May 18, 2026

By

/s/ Michael Beer

Name: Michael Beer Title: Chief Financial Officer