Energy Vault Holdings, Inc. (NRGV) SEC Filings & Earnings Calls
EquiReason read 18 Energy Vault Holdings, Inc. SEC filings in the last 12 months. Latest: 8-K on 2026-09-22 — Energy Vault subsidiary Development Vault entered into an amended and restated financing agreement for a senior secured delayed draw term loan credit facility with aggregate commit.
Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason
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last 12 months · SECWhat happened, the numbers inside, guidance and risks. The original is one click away.
22 Sep 20268-K · 2.03Energy Vault subsidiary Development Vault entered into an amended and restated financing agreement for a senior secured delayed draw term loan credit facility with aggregate commitments up to $25M, bearing interest at 10% cash plus 7% PIK,open
Figures in the filing · each found in the filing text
| Borrowings outstanding · 2026-09-18 | $18M |
Risks flagged
High-cost financing (10% cash + 7% PIK) increases leverage and interest burden; facility secured by substantially all assets of borrower and guarantors.
“Loans under the Financing Agreement bear interest at a rate of 10.0% per annum, payable in cash, plus a deferred rate of 7.0% per annum, payable in kind.” · word for word
20 Aug 20268-K · 1.01, 2.03Energy Vault subsidiary entered a $137.5M senior secured term loan facility to fund power generation equipment purchases, with interest rates of 6.75%-7.50% and maturity in January 2028.open
Risks flagged
Debt service reserve requirement and mandatory prepayment provisions increase financial obligations.
“Borrower is required to maintain a debt service reserve account containing an amount sufficient to cover three months of debt service.”
11 Aug 20268-K · 2.02Energy Vault reports Q2 2026 revenue $17.4M (+104% y/y), GAAP gross margin 31% (+140 bps), backlog $2B (+107% y/y), raises FY2026 revenue guidance to $270-310M and gross margin to 20-25%.earningsopen
Figures in the filing · each found in the filing text
| Revenue · Q2-2026 | $17M | +105% y/y |
| GAAP Gross Profit · Q2-2026 | $5M | +116% y/y |
| GAAP Gross Margin · Q2-2026 | 31.0% | |
| Adjusted Gross Margin · Q2-2026 | 38.6% | |
| GAAP Net Loss · Q2-2026 | $-30M | -15% y/y |
| GAAP EPS · Q2-2026 | $-0.17 | -23% y/y |
| Adjusted EBITDA Loss · Q2-2026 | $-17M | +25% y/y |
| Adjusted Net Loss · Q2-2026 | $-25M | +34% y/y |
| Cash and Cash Equivalents (including restricted) · Q2-2026 | $148M | +155% y/y |
| Backlog · Q2-2026 | $2.00B | +107% y/y |
Guidance
FY2026 revenue raised to $270-310M from $225-300M; FY2026 GAAP gross margin narrowed to 20-25% from 15-25% (high end); targeting $160-200M cash at year-end 2026
Raised FY2026 revenue guidance and lifted gross margin guidance to high end, reflecting strong demand and operational progress
Risks flagged
Execution risk on large delivery ramp in 2H 2026 and 2027
“We have a large delivery ramp into our second half and even greater ramp in 2027 given the growth in contracted backlog” · word for word
Continued GAAP net losses and negative adjusted EBITDA
“Q2 2026 GAAP net loss was $29.7 million; adjusted EBITDA loss was $17.0 million”
11 Aug 202610-QEnergy Vault reported Q2 2026 revenue of $17.4M (up 104% YoY) and a net loss of $29.7M, with a $1.5B backlog.earningsopen
Figures in the filing · each found in the filing text
| Revenue · Q2-2026 | $17M | +104% y/y |
| Revenue · H1-2026 | $39M | +130% y/y |
| Gross Profit · Q2-2026 | 31.0% | |
| Gross Profit · H1-2026 | 25.9% | |
| Net Loss · Q2-2026 | $-30M | -15% y/y |
| Net Loss · H1-2026 | $-62M | +11% y/y |
| Cash and Cash Equivalents · 2026-06-30 | $93M | +60% y/y |
| Backlog · 2026-06-30 | $1.50B | |
| Operating Cash Flow · H1-2026 | $-84M | -768% y/y |
| Adjusted EBITDA · Q2-2026 | $-17M | +25% y/y |
Risks flagged
Negative operating cash flow and increasing net loss
“Net cash used in operating activities was $84.4 million for the six months ended June 30, 2026, compared to net cash provided by operating activities of $12.6 million for the same period in 2025.” · word for word
High debt levels and complex financing structure
“The 2026 Debentures bear interest at 7.5% per annum, or 18.0% upon an uncured event of default, and mature on July 1, 2027.” · word for word
Customer concentration
“Revenue from three customers accounted for 41%, 21%, and 21% of total revenue, respectively, for the three months ended June 30, 2026” · word for word
Project execution and cost overrun risk
“The increase in cost of revenue for the three and six months ended June 30, 2026 compared to the same periods in 2025 were driven by higher EPC project costs, primarily reflecting increased activity on the Company’s Australian EPC projects.”
17 Jul 20268-K · 5.02, 7.01Energy Vault appointed Nitin Dahiya (from BlackRock) as CFO, replacing Michael Beer, to strengthen financial leadership amid global expansion.open
Risks flagged
CFO transition may cause temporary disruption, but new CFO brings relevant expertise.
“Michael Beer, current CFO, will be transitioning from his role to pursue other opportunities.”
1 Jul 20268-K · 1.01, 2.03, 3.02, 7.01Energy Vault amended its convertible debenture agreement, increasing principal from $42M to $80M, with interest at 7.50% and maturity July 2027, citing material increase in commercial backlog.open
Figures in the filing · each found in the filing text
| Backlog · Q1-2026 | $1.30B |
Risks flagged
Convertible debenture increases leverage and potential dilution.
“Amended and Restated AR Convertible Debenture with principal of $80M, convertible into equity.”
Backlog conversion risk: projects may not result in revenue as anticipated.
“The Company cannot guarantee that its bookings will result in actual revenue in the originally anticipated period, or at all.” · word for word
19 May 202610-QEnergy Vault reported Q1 2026 revenue of $21.9M (up 156% YoY) and a net loss of $32.5M, with operating cash flow worsening significantly.earningsopen
Figures in the filing · each found in the filing text
| Revenue · Q1-2026 | $22M | +156% y/y |
| Gross Profit · Q1-2026 | $5M | -2% y/y |
| Gross Margin · Q1-2026 | 21.9% | |
| Net Loss · Q1-2026 | $-32M | |
| Operating Cash Flow · Q1-2026 | $-54M | |
| Backlog · 2026-03-31 | $1.30B | |
| Developed Pipeline · 2026-03-31 | $3.50B | |
| Net Bookings · Q1-2026 | $14M | -94% y/y |
| Cash and Cash Equivalents · 2026-03-31 | $55M | |
| Total Cash, Cash Equivalents, and Restricted Cash · 2026-03-31 | $117M |
Risks flagged
Tariff exposure on Chinese imports
“Several third party sales projects within our backlog and developed pipeline experienced delays or cancellations due to the anticipated increase in costs associated with importing B-VAULT products from China.” · word for word
Project-level debt covenant noncompliance
“the Company has not satisfied the current minimum Cross Trails Senior Note debt service coverage ratio under the covenant calculation for the quarter ended March 31, 2026.” · word for word
Negative operating cash flow and high cash burn
“Net cash used in operating activities was $53.8 million for the three months ended March 31, 2026, compared to net cash used in operating activities of $2.7 million for the same period in 2025.” · word for word
Customer concentration
“Revenue from one customer accounted for 81% of total revenue for the three months ended March 31, 2026.” · word for word
Dependence on non-Chinese sourcing for B-VAULT products
“As of the filing date of this Quarterly Report, we have not successfully imported our B-VAULT products from non-Chinese suppliers on an economical basis.” · word for word
5 May 20268-K · 2.02Q1 2026 revenue $21.9M (+156% YoY), backlog $1.35B (+108% YoY), MW under management surged to 1.1 GW (+500% YoY). Reaffirmed FY2026 guidance. Cash $117M (5th consecutive quarterly increase).earningsopen
Figures in the filing · each found in the filing text
| Revenue · Q1-2026 | $22M | +156% y/y |
| Backlog · YTD-2026 | $1.35B | +108% y/y |
| MW under management · Q1-2026 | 1,100 | +150% y/y |
| GAAP Gross Profit · Q1-2026 | $5M | |
| Adjusted Gross Profit · Q1-2026 | $6M | +25% y/y |
| GAAP Gross Margin · Q1-2026 | 21.9% | |
| Adjusted Gross Margin · Q1-2026 | 27.9% | |
| GAAP Net Loss · Q1-2026 | $-33M | +54% y/y |
| Adjusted EBITDA · Q1-2026 | $-14M | +20% y/y |
| Cash and Cash Equivalents · Q1-2026 | $117M |
Guidance
FY2026 revenue $225-$300M (~30% YoY growth at midpoint); FY2026 gross margin 15%-25%; FY2026 year-end cash $150-$200M; Own & Operate portfolio expected to yield >$180M annual recurring EBITDA ahead of prior guidance
Reaffirmed FY2026 guidance across all key metrics with strong double-digit growth expectations. Own & Operate portfolio EBITDA guidance raised ahead of prior expectations.
Risks flagged
GAAP net loss widened to $32.5M from $21.1M due to higher depreciation, interest expense, and non-recurring debt extinguishment costs
“Q1 2026 GAAP Net Loss of $32.5 million compared to $21.1 million in the prior-year period, reflecting higher depreciation and interest expense, and non-recurring items related to extinguishment of debt” · word for word
GAAP gross margin declined sharply from 57.1% to 21.9% due to revenue mix shift away from high-margin IP revenue
“GAAP gross margin of 21.9% reflects evolving revenue mix toward product deliveries and early-stage asset contributions (prior-year period GAAP Gross Margin of 57.1% driven by IP-related revenue)” · word for word
Adjusted EBITDA loss increased to $13.6M from $11.3M due to development expenses and new personnel for Own & Operate/AI strategy
“Q1 2026 Adjusted EBITDA loss of ($13.6) million compared to a loss of $11.3 million in the prior-year period, reflecting additional development expenses and new personnel associated with the Own & Operate / AI power infrastructure strategy” · word for word
2 Apr 2026SC 13D/ACEO/Chairman Robert Piconi filed an amended Schedule 13D disclosing a family settlement agreement involving transfer of 3,112,806 shares, but retains voting control via irrevocable proxies; also acquired shares in open market.open
Figures in the filing · each found in the filing text
| Beneficial ownership percentage (Robert Piconi) · 2026-03-13 | 13.4% | |
| Shares beneficially owned (Robert Piconi) · 2026-03-13 | 23,417,827 |
2 Apr 2026SC 13D/ACEO/Chairman Robert Piconi filed an amended Schedule 13D disclosing a family settlement agreement involving transfer of 3,112,806 shares, but retains voting control via irrevocable proxies; also acquired shares in open market.open
Figures in the filing · each found in the filing text
| Beneficial ownership percentage (Robert Piconi) · 2026-03-13 | 13.4% | |
| Shares beneficially owned (Robert Piconi) · 2026-03-13 | 23,417,827 |
18 Mar 202610-KEnergy Vault filed its annual report (10-K) for fiscal year 2025, disclosing industry trends, strategy updates, and risk factors.earningsopen
Risks flagged
Customer concentration risk
“We depend on a limited number of customers for the majority of our revenue, and the loss of any one of these customers could substantially reduce our revenue and impact our liquidity.” · word for word
Supply chain disruption risk
“The failure or inability of our suppliers to deliver necessary components or raw materials for construction of our energy storage systems and their failure or inability to deliver them in a timely manner could cause installation delays, cancellations, penalty payments and damage to our reputation.” · word for word
Technology adoption risk
“Our G-VAULT and H-VAULT products are based on established principles that are deployed in a novel way to create new technologies to store energy and potential customers may be hesitant to make a significant investment in our technology or abandon the technology they are currently using.” · word for word
Financing risk
“Our energy storage systems have significant upfront costs. We will need to obtain financing to fund our own projects and our customers may need to obtain financing to help finance purchases. If we or our customers are unable to procure third-party financing or if the cost of such financing exceeds our estimates, our business would be adversely affected.” · word for word
17 Mar 20268-K · 2.02Energy Vault reports FY2025 revenue of $203.7M (+340% YoY), gross margin 23.6% (+1020 bps), record backlog of $1.3B, positive Q4 Adjusted EBITDA, and guides FY2026 revenue $225-300M with cash target $150-200M.earningsopen
Figures in the filing · each found in the filing text
| Revenue · FY2025 | $204M | +340% y/y |
| Gross Profit Margin · FY2025 | 23.6% | |
| Gross Profit · FY2025 | $48M | |
| Contract Revenue Backlog · 2025-12-31 | $1.30B | +300% y/y |
| Total Cash (including restricted cash) · 2025-12-31 | $103M | +300% y/y |
| Q4 Revenue · Q4-2025 | $153M | +358% y/y |
| Q4 GAAP Gross Profit Margin · Q4-2025 | 20.6% | |
| Q4 Adjusted EBITDA · Q4-2025 | $10M | -173% y/y |
| FY2025 Adjusted EBITDA · FY2025 | $-21M | -63% y/y |
| Q4 Adjusted Net Income · Q4-2025 | $4M | -115% y/y |
Guidance
FY2026 revenue guidance $225-300M (midpoint ~$262.5M, ~30% growth YoY); gross margin 15-25%; year-end cash $150-200M; internal project builds $75-100M.
Company provides detailed FY2026 guidance with revenue growth, cash build, and project pipeline expansion, though gross margin expected to moderate from 2025 levels.
Risks flagged
Execution risk on large project pipeline; reliance on project financing and customer timelines; gross margin guidance decline in FY2026.
“Estimating full year 2026 gross margin of 15-25% (versus 23.6% reported for full year 2025); project financing dependencies for SOSA and Stoney Creek.”
11 Feb 20268-K · 2.02Energy Vault announces preliminary Q4 2025 revenue $150-155M (YoY +~355%, 5x sequential), positive Adj EBITDA $5-10M, cash $103.4M (3x YoY). FY2025 revenue $200-205M within guidance. Strong growth and margin improvement.earningsopen
Figures in the filing · each found in the filing text
| Cash and Cash Equivalents · Q4-2025 | $103M | +200% y/y |
Guidance
FY2025 revenue $200-205M within original guidance range; Q4 2025 revenue $150-155M; Q4 2025 Adj EBITDA $5-10M; FY2025 Adj EBITDA $(26)-(21)M; Q4 2025 gross margin 18-22%; FY2025 gross margin 22-25%
FY2025 revenue within original guidance range; strong Q4 performance with positive adjusted EBITDA; management expresses confidence in 'Own & Operate' strategy driving growth.
Risks flagged
Preliminary results subject to audit adjustment; final 10-K may differ
“the Company has not finalized its financial and operational results for the fourth quarter and year ended December 31, 2025. Although such financial and operational results have not yet been finalized and are therefore subject to change” · word for word
Still GAAP net loss despite adjusted EBITDA profitability; path to full profitability uncertain
“Q4 2025 Net loss expected to be between $22.1 million and $9.5 million versus $61.8 million in Q4 2024” · word for word
6 Jan 20268-K · 2.02, 7.01Construction start of 150MW/300MWh SOSA Energy Center in Texas; cash and liquidity >$100M, up ~65% QoQ, above guidance; total revenue expected $350M+ over technical life.open
Figures in the filing · each found in the filing text
| Cash and liquidity · Q4-2025 | $100M | |
| Asset Vault portfolio under operation and construction · Asset Vault · Q4-2025 | $340.00 | |
| SOSA Energy Center total expected revenue · SOSA Energy Center · technical_life | $350M |
Guidance
Q4 2025 cash and liquidity >$100M, up ~65% QoQ, above high end of guidance range
Cash and liquidity significantly exceeded guidance; strong project pipeline and execution momentum.
Risks flagged
Project execution and offtake agreement risk; offtake agreement currently in advanced negotiations but not yet signed.
“expected 6-8-year offtake agreement currently in advanced negotiations with an investment-grade counterparty” · word for word
Dependence on ERCOT market dynamics and regulatory environment.
“strategically positioned within the ERCOT North market” · word for word
10 Nov 202510-QEnergy Vault reported Q3 2025 revenue of $33.3M, a significant increase from $1.2M in Q3 2024, driven by Australian EPC projects and new tolling revenue, but gross margin declined to 27.0% from 40.3%.earningsopen
Figures in the filing · each found in the filing text
| Revenue · Q3-2025 | $33M | +2678% y/y |
| Net bookings · Q3-2025 | $286M | |
| Backlog · 2025-09-30 | $920M | |
| Developed Pipeline · 2025-09-30 | $2.11B | |
| Gross Profit Margin · Q3-2025 | 27.0% | |
| Net Loss · Q3-2025 | $-21M | +20% y/y |
| Operating Cash Flow · 9M-2025 | $921000.00 | |
| Cash and Cash Equivalents · 2025-09-30 | $33M |
Risks flagged
Tariff and Trade Disruption Risk
“our B-Vault products, all of which have been sourced and manufactured in China, became subject to a cumulative U.S. import tariff burden of approximately 155.9%.” · word for word
Supply Chain Concentration Risk
“As of the filing date of this Quarterly Report, we have not successfully imported our B-Vault products from non-Chinese suppliers on an economical basis.” · word for word
Customer Concentration Risk
“Revenue from two customers accounted for 70% and 23% of total revenue, respectively, for the three months ended September 30, 2025.” · word for word
High Debt and Financing Cost Risk
“Interest expense for the quarter ended September 30, 2025 was $2.8 million, an increase of $2.7 million from $43 thousand for the same period in 2024.” · word for word
Credit Loss Risk
“Provision for credit losses for the nine months ended September 30, 2025 was $3.8 million, an increase of $1.5 million from $2.2 million for the same period in 2024.” · word for word
10 Nov 20258-K · 2.02Energy Vault reported Q3 2025 revenue $33.3M (27x YoY), GAAP gross profit $9.0M (18x YoY), gross margin 27.0%. Adjusted EBITDA loss narrowed to $6.0M from $14.7M. Revenue backlog $920M (+112% YTD). Reaffirmed FY2025 guidance. Closed $300M pearningsopen
Figures in the filing · each found in the filing text
| Revenue Backlog · Q3-2025 | $920M | |
| Revenue · Q3-2025 | $33M | +2675% y/y |
| GAAP Gross Profit · Q3-2025 | $9M | +1700% y/y |
| GAAP Gross Margin · Q3-2025 | 27.0% | |
| Adjusted EBITDA · Q3-2025 | $-6M | -59% y/y |
| Cash and Cash Equivalents · Q3-2025 | $62M | |
| Year-to-Date Gross Margin · YTD-2025 | 32.6% |
Guidance
FY2025 revenue $200-250M; FY2025 gross margin 14-16%; FY2025 cash $75-100M; Asset Vault targeting $100-150M recurring EBITDA by 2029
Reaffirmed FY2025 guidance; strong backlog growth; Asset Vault strategy on track.
Risks flagged
Dependence on project execution and regulatory approvals (e.g., Albania project subject to legislative approval).
“400 MWh project in Albania, subject to final Albanian legislative approval” · word for word
Cash burn risk despite improvement; Adjusted EBITDA still negative.
“Q3 2025 Adjusted EBITDA loss... $6.0 million” · word for word
Energy Vault Holdings, Inc. — questions
- What did Energy Vault Holdings, Inc. file recently?
- 18 SEC filings in the last 12 months. Latest: 8-K on 2026-09-22 — Energy Vault subsidiary Development Vault entered into an amended and restated financing agreement for a senior secured delayed draw term loan credit facility with aggregate commitments up to $25M, bearing interest at 10% cash plus 7% PIK,
Every figure on this page comes from Energy Vault Holdings, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.
How these figures are read: methodology · EquiReason.