XOOMAR

Energy Vault Holdings, Inc. (NRGV)

Every FINRA and SEC series the site collects for Energy Vault Holdings, Inc.: short interest with days to cover, daily short sale volume, fails to deliver and Form 4 insider trades. Listed on NYSE, classified by the SEC as miscellaneous electrical machinery, equipment & supplies.

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30.7M

Short interest

settlement 2026-08-14

4.2

Days to cover

-2.9% vs prior

52.9%

Short share of volume

2026-09-11

113,929

Fails to deliver

settlement 2026-08-14

-$266K

Insider flow, 90 days

4 buys, 2 sells

As of 2026-09-11.

Short interest

FINRA, twice a month; the last 12 months shown, all 48 settlements in the JSON

As of 14 August 2026, short interest in NRGV is 30,658,737 shares, up 7,690 shares over the last month. Over the last 48 readings it ranged from 6,949,695 shares (28 November 2025) to 31,584,215 shares (31 July 2026). The latest reading sits at the top of that range. At the reported average volume of 7.3M shares a day that is 4.2 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-08-1430,658,737-2.9%7,275,0474.21
2026-07-3131,584,215+3.0%4,133,4457.64
2026-07-1530,651,047+3.0%4,692,3556.53
2026-06-3029,752,410+32.2%7,878,4103.78
2026-06-1522,510,759+16.0%5,802,6303.88
2026-05-2919,413,199-1.5%4,382,2434.43
2026-05-1519,717,059+7.3%6,197,2683.18
2026-04-3018,367,348+2.1%4,037,2544.55
2026-04-1517,992,015+2.6%2,784,3936.46
2026-03-3117,527,953+6.6%5,078,1403.45
2026-03-1316,442,624+0.6%3,045,3825.40
2026-02-2716,346,983+47.6%3,322,6094.92
2026-02-1311,077,437+46.2%5,397,7322.05
2026-01-307,578,305-14.1%2,530,0483.00
2026-01-158,825,148-2.6%3,018,0242.92
2025-12-319,059,364+18.4%4,051,6562.24
2025-12-157,648,679+10.1%2,606,6422.93
2025-11-286,949,695-16.3%3,435,4362.02
2025-11-148,302,667+3.0%3,828,7162.17
2025-10-318,059,208-15.2%2,427,4553.32
2025-10-159,506,719-13.3%3,491,1932.72
2025-09-3010,970,680-21.9%4,695,5912.34
2025-09-1514,047,739-5.7%2,140,9446.56
2025-08-2914,891,130-2.5%1,949,7427.64

Daily short volume

FINRA Reg SHO, last 60 sessions. JSON

As of 11 September 2026, the short share of NRGV volume is 52.9%, up 7.9 points over the last five sessions. Over the last 52 readings it ranged from 29.7% (8 September 2026) to 81.7% (14 July 2026). The latest reading is in line with the 30-session average of 54.3%, on 777K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-09-11411K777K52.9%2,913
2026-09-10614K1.3M47.6%12,519
2026-09-09589K1.3M44.8%0
2026-09-08828K2.8M29.7%1,000
2026-09-04437K1.1M41.5%593
2026-09-03537K1.2M45.0%650
2026-09-02567K1.1M52.9%10
2026-09-01677K1.8M37.7%200
2026-08-31511K873K58.5%1,000
2026-08-28616K1.2M51.6%10,852
2026-08-27412K735K56.0%201
2026-08-261.2M1.8M63.6%3,101
2026-08-25614K1.3M48.0%10,100
2026-08-24510K833K61.3%0
2026-08-21598K994K60.1%6,025
2026-08-20930K1.4M64.5%7,279
2026-08-191.1M2.1M54.3%2,695
2026-08-181.1M1.6M67.3%689
2026-08-17893K1.4M62.2%0
2026-08-14713K1.5M48.7%28,700
2026-08-131.1M1.9M56.5%31,982
2026-08-122.1M4.3M50.4%8,272
2026-08-111.4M2.3M60.7%3,403
2026-08-102.7M4.0M65.9%27,039
2026-08-074.8M8.3M58.3%18,584
2026-08-06880K1.3M67.3%450
2026-08-05590K1.0M57.6%674
2026-08-04762K1.6M48.0%0
2026-08-03654K1.1M62.3%25,262
2026-07-31431K789K54.6%0

Fails to deliver

SEC, by settlement date. JSON

As of 14 August 2026, the fails-to-deliver balance in NRGV is 113,929 shares, down 135,095 shares over the last settlement date. Over the last 52 readings it ranged from 11 shares (16 June 2026) to 1,311,907 shares (10 June 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-08-14113,929$3.69$420K
2026-08-13249,024$3.92$976K
2026-08-1251,024$3.58$183K
2026-08-10212$3.49$740
2026-08-07200$2.96$592
2026-08-0484$3.05$256
2026-08-0384$2.85$239
2026-07-311,023$2.83$3K
2026-07-291,068,045$2.75$2.9M
2026-07-2849,325$2.93$145K
2026-07-2717$2.88$49
2026-07-222,186$3.48$8K
2026-07-2116$3.02$48
2026-07-171,010$3.04$3K
2026-07-16340$3.26$1K
2026-07-141,601$3.29$5K
2026-07-13621$3.44$2K
2026-07-102,800$3.74$10K
2026-07-094,909$3.55$17K
2026-07-08104,909$3.79$398K
2026-07-0715,853$4.12$65K
2026-07-0662,043$4.04$251K
2026-07-02966,093$4.47$4.3M
2026-07-0172,817$4.71$343K
2026-06-3051,548$4.50$232K
2026-06-29423,469$4.21$1.8M
2026-06-2553,995$3.93$212K
2026-06-24292,115$4.25$1.2M
2026-06-23278,930$4.42$1.2M
2026-06-22224,859$4.10$922K

Insider trades

SEC Form 4, newest first, 50 of 85 shown. JSON

Over the last 90 days NRGV insiders reported 4 open-market buys ($426K) against 2 sells ($692K), so the dollar flow leans toward selling. Latest filing: Unwin Stephanie on 2026-08-26.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-08-26Unwin Stephanien/aSell115K$3.71$427K182K
2026-08-17Hixon Dylann/aBuy27K$3.88$107K27K
2026-08-14Hixon Dylann/aBuy32K$3.75$119K32K
2026-08-14Hixon Dylann/aBuy27K$3.73$100K27K
2026-08-14Hixon Dylann/aBuy27K$3.73$100K27K
2026-08-04Dahiya NitinChief Financial OfficerGrant400K$0.00$0400K
2026-07-06Beer Michael ThomasChief Financial OfficerSell65K$4.08$265K1.0M
2026-07-06Beer Michael ThomasChief Financial OfficerOption exercise50K$1.17$59K1.1M
2026-05-29Unwin Stephanien/aGrant19K$0.00$0297K
2026-05-29Mandanas Mary Bethn/aGrant22K$0.00$0373K
2026-05-29Fariello Theresa Mn/aGrant19K$0.00$0318K
2026-05-29Hixon Dylann/aGrant19K$0.00$0118K
2026-05-29Paulson Larryn/aGrant22K$0.00$0524K
2026-05-29Ertel Thomas Rn/aGrant22K$0.00$0388K
2026-04-06Beer Michael ThomasChief Financial OfficerSell65K$3.18$207K1.1M
2026-04-06Beer Michael ThomasChief Financial OfficerOption exercise50K$1.17$59K1.1M
2026-03-31Piconi RobertChief Executive OfficerBuy13K$3.21$40K16.9M
2026-03-31Piconi RobertChief Executive OfficerTax withholding330K$3.30$1.1M16.6M
2026-03-31Ladwa AkshayChief Operations OfficerTax withholding148K$3.30$488K2.1M
2026-03-31Beer Michael ThomasChief Financial OfficerTax withholding29K$3.30$95K1.1M
2026-03-25Mandanas Mary Bethn/aBuy5K$3.65$18K351K
2026-03-12Ladwa AkshayChief Operations OfficerGrant475K$0.00$02.3M
2026-03-12Beer Michael ThomasChief Financial OfficerGrant150K$0.00$01.1M
2026-03-05Ladwa AkshayChief Operations OfficerTax withholding10K$3.00$30K1.8M
2026-03-05Piconi RobertChief Executive OfficerTax withholding69K$3.00$206K20.0M
2026-03-04Ertel Thomas Rn/aBuy5K$3.37$18K366K
2026-03-02Ladwa AkshayChief Operations OfficerBuy4K$3.08$12K1.8M
2026-02-27Paulson Larryn/aBuy5K$3.15$16K502K
2026-02-26Piconi RobertChief Executive OfficerBuy8K$3.25$24K20.1M
2026-01-30Beer Michael ThomasChief Financial OfficerTax withholding103K$5.43$560K1.4M
2026-01-30Beer Michael ThomasChief Financial OfficerTax withholding77K$4.61$355K1.3M
2026-01-30Beer Michael ThomasChief Financial OfficerGrant200K$0.00$01.3M
2026-01-22Piconi RobertChief Executive OfficerTax withholding91K$4.61$421K20.1M
2026-01-22Ladwa AkshayChief Operations OfficerTax withholding16K$4.61$72K1.8M
2026-01-22Wiese ChristopherPresident, Energy Vault LabsTax withholding7K$4.61$31K1.1M
2026-01-22Beer Michael ThomasChief Financial OfficerTax withholding16K$4.61$72K1.1M
2026-01-15SOFTBANK VISION FUND (AIV M2) L.P.n/aSell3.0M$5.65$16.9M15.5M
2025-12-23Beer Michael ThomasChief Financial OfficerSell50K$4.91$246K1.2M
2025-12-12Wiese ChristopherPresident, Energy Vault LabsTax withholding9K$3.44$30K1.1M
2025-12-11Piconi RobertChief Executive OfficerTax withholding9K$3.44$30K20.2M
2025-12-11Ladwa AkshayChief Operations OfficerTax withholding22K$3.44$74K1.8M
2025-11-14Piconi RobertChief Executive OfficerBuy10K$3.00$30K20.2M
2025-11-13Ladwa AkshayChief Operations OfficerTax withholding10K$3.54$35K1.9M
2025-11-13Wiese ChristopherPresident, Energy Vault LabsTax withholding3K$3.54$9K1.1M
2025-11-13Piconi RobertChief Executive OfficerTax withholding3K$3.54$9K20.2M
2025-10-15Ladwa AkshayChief Operations OfficerGift50K$0.00$01.9M
2025-10-10Piconi RobertChief Executive OfficerTax withholding14K$2.97$41K20.2M
2025-10-10Ladwa AkshayChief Operations OfficerTax withholding17K$2.97$51K1.9M
2025-10-10Wiese ChristopherPresident, Energy Vault LabsTax withholding6K$2.97$17K1.1M
2025-10-10Beer Michael ThomasChief Financial OfficerTax withholding16K$2.97$46K1.2M

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are the rarer, stronger signal.

Planned sales (Form 144)

Newest first. JSON

2 Form 144 notices on file for NRGV worth $616K at the prices reported; 2 in the last 90 days worth $616K. Latest: Beer Michael Thomas filed on 2026-09-04 to sell 50,000 shares ($189K) from 2026-09-04.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-09-04Beer Michael ThomasFormer Officer50K$189K0.027%2026-09-04Fidelity Brokerage Services LLC
2026-08-26Unwin StephanieDirector115K$427K0.063%2026-08-26Fidelity Brokerage Services LLC

Large holders (13D and 13G)

One row per reporting person, newest filing first. JSON

12 holders above 5% have filed on NRGV, all on Schedule 13G (passive). The largest reported stake is Craig Effron at 6.3% of the class (11,550,000 shares), filed 2026-08-14 for an event on 2026-02-27.

FiledFormHolderSharesOf classEvent
2026-08-1413GCraig Effronindividual11.6M6.3%2026-02-27
2026-08-1413GCurtis Schenkerindividual11.0M6.0%2026-02-27
2026-08-1413GScoggin International Fund Ltd.corporation8.6M4.7%2026-02-27
2026-08-1413GScoggin Management LPinvestment adviser8.6M4.7%2026-02-27
2026-08-1413GScoggin GP LLCother entity8.6M4.7%2026-02-27
2026-08-1413GDev Chodryindividual276K0.1%2026-02-27
2026-08-1413GScoggin Worldwide Fund Ltd.corporation140K0.1%2026-02-27
2026-08-1413GOld Bellows Partners LPinvestment adviser140K0.1%2026-02-27
2026-08-1413GOld Bell Associates LLCother entity140K0.1%2026-02-27
2026-08-1413GMichael Renoffindividual135K0.1%2026-02-27
2026-08-1413GDouglas Rothschildindividual30K0.0%2026-02-27
2026-07-2813GBlackRock, Inc.parent holding company10.7M6.0%2026-06-30

13F holders

Tracked managers holding NRGV at their latest 13F. JSON

5 of the 30 tracked managers held NRGV at their latest 13F, $12.3M in total at quarter-end prices. Citadel Advisors is the largest at $6.4M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 1 cut.

FundQuarterSharesValueOf portfolioChange in shares
Citadel Advisors2026-06-301.4M$6.4M0.00%+32K
Two Sigma Investments2026-06-301.2M$5.6M0.00%+574K
Millennium Management2026-06-3029K$136K0.00%new or n/a
AQR Capital Management2026-06-3025K$116K0.00%+14K
Point72 Asset Management2026-06-3017K$80K0.00%-329K

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

Financials

SEC XBRL, as filed. JSON

In Q2 2026 (quarter ended 2026-06-30) Energy Vault Holdings, Inc. reported revenue of $17.4M, up 104.1% from the same quarter a year earlier, and net loss of $29.7M (-0.18 diluted EPS). In FY 2025 it generated -$5.6M of operating cash flow. As of 2026-06-30, cash was $93.0M against $264.2M of debt.

Cash
$93.0M
Debt
$264.2M
Total assets
$370.5M
Shares outstanding
181,839,570

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 20262026-06-30$17.4M-$29.7M-170.9%-0.18
Q1 20262026-03-31$21.9M-$32.5M-148.5%-0.20
Q4 2025derived2025-12-31$153.3M-$20.7M-13.5%n/a
Q3 20252025-09-30$33.3M-$26.8M-80.5%-0.16
Q2 20252025-06-30$8.5M-$34.9M-410.3%-0.22
Q1 20252025-03-31$8.5M-$21.1M-247.7%-0.14
Q4 2024derived2024-12-31$33.5M-$61.8M-184.7%n/a
Q3 20242024-09-30$1.2M-$26.6M-2217.9%-0.18

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31$203.7M-$103.6M-$5.6M$41.1Mn/an/a
FY 20242024-12-31$46.2M-$135.8M-$55.9M$58.9Mn/an/a
FY 20232023-12-31$341.5M-$98.4M-$92.7M$30.4Mn/an/a
FY 20222022-12-31$145.9M-$78.3M-$23.3M$2.3Mn/an/a
FY 20212021-12-31$0-$31.3M-$22.1M$170Kn/an/a

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are cash paid to repurchase common stock in the year (XBRL PaymentsForRepurchaseOfCommonStock), not authorizations. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-08-06 from the cover page.

What this page is

Energy Vault Holdings, Inc. in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page pulls every series the site collects for one ticker onto one URL, keyed by the SEC's own ticker list, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a summary sentence built from the rows (last value, change, range with dates) and its own JSON and CSV links. Nothing on the page is written by a model; the sentences change only when the data does. A page exists only for companies with data in at least two series, and every section says when its source last updated.

This page follows Energy Vault Holdings, Inc. (NRGV), SEC CIK 1828536, listed on NYSE, classified by the SEC as miscellaneous electrical machinery, equipment & supplies. The cross-market tables live on the short interest and insider transactions hubs.

Source and method

Short interest
FINRA consolidated short interestTwice a month, about eight business days after settlement. Latest 2026-08-14.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesEvery trading day, loaded the following morning. Latest 2026-09-11.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataTwice a month, a few weeks after the half month ends. Latest 2026-08-14.JSON and CSV
Planned sales
SEC EDGAR Form 144EDGAR read every 30 minutes; a notice is filed on or before the sell order. Latest 2026-09-04.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GEDGAR read every 30 minutes; 13D within five business days of crossing 5%, 13G on the passive schedule. Latest 2026-08-14.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRQuarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials
SEC XBRL company factsRefreshed weekly from the SEC's structured data; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
Insider trades
SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-08-26.JSON and CSV
Company record
EDGAR filing index for CIK 1828536Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
30 requests a minute without a key, 120 a minute with a key from a free account.

Data checks. Every dataset is checked against its source once a day. This dataset passed the last run, 13 Sep 05:40 UTC.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a crowded short are the combination that has historically preceded squeezes; insider sells next to a crowded short are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Datasets

Frequently Asked Questions

How much of NRGV is sold short?
30,658,737 shares were held short at the 2026-08-14 settlement, 4.2 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is NRGV's daily short volume?
On 2026-09-11, 411,232 of the 776,928 NRGV shares reported to FINRA were sold short, 52.9% of the day's reported volume. Short volume is a flow for one day, not a position.
Does NRGV have fails to deliver?
The SEC's latest file shows 113,929 NRGV shares failed to deliver at settlement 2026-08-14. Fails are reported per settlement date and published twice a month with a lag.
Are NRGV insiders buying or selling?
Over the last 90 days NRGV insiders reported 4 open-market buys ($426K) against 2 sells ($692K), so the dollar flow leans toward selling. Latest filing: Unwin Stephanie on 2026-08-26.
Have NRGV insiders filed to sell?
2 Form 144 notices on file for NRGV worth $616K at the prices reported; 2 in the last 90 days worth $616K. Latest: Beer Michael Thomas filed on 2026-09-04 to sell 50,000 shares ($189K) from 2026-09-04.
Who owns more than 5% of NRGV?
12 holders above 5% have filed on NRGV, all on Schedule 13G (passive). The largest reported stake is Craig Effron at 6.3% of the class (11,550,000 shares), filed 2026-08-14 for an event on 2026-02-27.
What did NRGV report last quarter?
In Q2 2026 (quarter ended 2026-06-30) Energy Vault Holdings, Inc. reported revenue of $17.4M, up 104.1% from the same quarter a year earlier, and net loss of $29.7M (-0.18 diluted EPS). In FY 2025 it generated -$5.6M of operating cash flow. As of 2026-06-30, cash was $93.0M against $264.2M of debt.
Which funds hold NRGV?
5 of the 30 tracked managers held NRGV at their latest 13F, $12.3M in total at quarter-end prices. Citadel Advisors is the largest at $6.4M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 1 cut.

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.