XOOMAR

Eos Energy Enterprises, Inc. (EOSE)

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

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112.8M

Short interest

settlement 2026-08-14

4.1

Days to cover

-2.6% vs prior

47.1%

Short share of volume

2026-09-11

6,168

Fails to deliver

settlement 2026-08-14

-$67K

Insider flow, 90 days

0 buys, 1 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 EOSE is 112,753,376 shares, up 6,840,676 shares over the last month. Over the last 48 readings it ranged from 49,950,523 shares (30 August 2024) to 115,719,997 shares (31 July 2026). The latest reading sits at the top of that range. At the reported average volume of 27.4M shares a day that is 4.1 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-08-14112,753,376-2.6%27,431,7224.11
2026-07-31115,719,997+9.3%26,545,2104.36
2026-07-15105,912,700+0.9%26,977,5913.93
2026-06-30105,004,475+4.0%25,970,9164.04
2026-06-15100,986,344-2.4%20,117,4145.02
2026-05-29103,509,854-1.6%24,213,9544.27
2026-05-15105,198,896+3.3%36,282,7312.90
2026-04-30101,818,310-0.8%22,471,8514.53
2026-04-15102,643,712+4.2%30,379,9483.38
2026-03-3198,554,411+5.3%17,178,6145.74
2026-03-1393,617,927+4.2%23,236,0154.03
2026-02-2789,879,111+1.3%34,088,2472.64
2026-02-1388,714,928+9.5%20,166,5064.40
2026-01-3081,043,016+1.3%22,799,0823.55
2026-01-1579,999,549-1.2%21,725,9593.68
2025-12-3180,941,481-2.2%11,867,8916.82
2025-12-1582,788,462-3.2%17,277,4844.79
2025-11-2885,530,945-10.0%26,720,7393.20
2025-11-1495,035,632+6.3%27,156,0903.50
2025-10-3189,441,993+8.4%23,936,5783.74
2025-10-1582,534,163+1.7%27,315,2373.02
2025-09-3081,135,958-1.3%21,696,5113.74
2025-09-1582,223,577+0.9%14,148,1115.81
2025-08-2981,462,716-0.1%9,363,7678.70

Daily short volume

FINRA Reg SHO, last 60 sessions. JSON

As of 11 September 2026, the short share of EOSE volume is 47.1%, down 7.3 points over the last five sessions. Over the last 52 readings it ranged from 36.0% (28 July 2026) to 70.4% (7 July 2026). The latest reading is 5.0 points below the 30-session average of 52.1%, on 14.2M shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-09-116.7M14.2M47.1%40,826
2026-09-107.6M14.4M52.5%39,404
2026-09-095.4M11.1M48.9%22,408
2026-09-0814.0M26.5M52.9%50,465
2026-09-048.8M14.2M61.7%17,822
2026-09-037.6M13.9M54.4%44,370
2026-09-0222.9M38.3M59.8%67,884
2026-09-013.5M7.6M45.6%23,275
2026-08-312.7M6.2M44.0%14,302
2026-08-285.2M8.9M58.3%82,912
2026-08-275.4M9.3M57.8%39,482
2026-08-267.3M11.4M63.6%86,201
2026-08-257.3M16.4M44.5%652,852
2026-08-249.7M17.4M55.6%1,071,126
2026-08-218.2M18.5M44.2%1,214,297
2026-08-2010.8M23.1M46.7%822,153
2026-08-1910.7M20.1M53.1%16,061
2026-08-188.4M14.4M58.4%37,050
2026-08-179.1M15.2M60.3%23,485
2026-08-145.4M9.4M57.0%33,869
2026-08-135.5M10.9M50.5%12,793
2026-08-125.6M11.8M47.4%72,606
2026-08-116.3M15.9M39.6%908
2026-08-103.7M8.6M42.8%7,850
2026-08-076.0M10.3M58.4%24,941
2026-08-066.5M12.8M50.6%1,017,318
2026-08-0512.2M21.2M57.6%1,901,148
2026-08-0413.9M23.1M60.1%9,812
2026-08-0313.9M29.2M47.6%520
2026-07-316.2M14.5M42.9%17,696

Fails to deliver

SEC, by settlement date. JSON

As of 14 August 2026, the fails-to-deliver balance in EOSE is 6,168 shares, down 480,255 shares over the last settlement date. Over the last 52 readings it ranged from 311 shares (31 July 2026) to 1,491,355 shares (17 July 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-08-146,168$4.16$26K
2026-08-13486,423$4.24$2.1M
2026-08-12536,774$4.24$2.3M
2026-08-11236,477$4.05$958K
2026-08-10289,856$4.15$1.2M
2026-08-07744,090$3.94$2.9M
2026-08-06561,098$3.82$2.1M
2026-08-0516,903$4.35$74K
2026-08-04857$3.75$3K
2026-08-0388,363$3.38$299K
2026-07-31311$3.61$1K
2026-07-3013,039$3.14$41K
2026-07-2927,011$3.37$91K
2026-07-2830,547$3.61$110K
2026-07-27520,421$3.47$1.8M
2026-07-24518,701$3.72$1.9M
2026-07-231,350$3.98$5K
2026-07-2213,079$4.24$55K
2026-07-2161,411$4.06$249K
2026-07-20195,608$4.13$808K
2026-07-171,491,355$3.96$5.9M
2026-07-1697,795$4.37$427K
2026-07-1593,259$4.29$400K
2026-07-14132,763$4.35$578K
2026-07-13205,022$4.40$902K
2026-07-1039,229$4.58$180K
2026-07-0998,746$4.51$445K
2026-07-08516,647$4.74$2.4M
2026-07-07406,292$5.06$2.1M
2026-07-0611,383$5.23$60K

Insider trades

SEC Form 4, newest first, 50 of 80 shown. JSON

Insiders at EOSE reported 1 open-market sell worth $67K in the last 90 days and no open-market buys. Sells alone are a weak signal; insiders sell for tax, diversification and estate reasons all the time. Latest filing: Mastrangelo Joe (Chief Executive Officer) on 2026-07-21.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-07-21Mastrangelo JoeChief Executive OfficerOption exercise111K$5.48$609K2.1M
2026-07-21Walters Mariann/aOption exercise11K$5.48$63K172K
2026-07-21Urban Davidn/aOption exercise12K$5.48$67K98K
2026-07-21Nigro Josephn/aOption exercise3K$5.48$15K42K
2026-07-21Kroeker NathanChief Commercial OfficerOption exercise17K$5.48$93K904K
2026-07-21Demby Clauden/aOption exercise2K$5.48$10K157K
2026-07-21DIMITRIEF ALEXANDERn/aOption exercise1K$5.48$8K11K
2026-07-21DIMITRIEF ALEXANDERn/aOption exercise18K$5.48$98K269K
2026-07-21Buczkowski MichelleChief Administration OfficerOption exercise3K$5.48$14K62K
2026-07-21Bornstein Jeffrey Sn/aOption exercise10K$5.48$52K144K
2026-06-30Buczkowski MichelleChief Administration OfficerSell11K$5.87$67K59K
2026-06-26Buczkowski MichelleChief Administration OfficerOption exercise23K$0.00$071K
2026-06-02Nigro Josephn/aOption exercise4K$0.00$039K
2026-06-02Walters Mariann/aOption exercise2K$0.00$0160K
2026-05-28Walters Mariann/aSell30K$9.18$275K158K
2026-05-28Walters Mariann/aOption exercise30K$1.18$35K188K
2026-05-20Walters Mariann/aSell22K$7.20$161K158K
2026-05-20Walters Mariann/aOption exercise22K$1.18$26K181K
2026-05-19McNeil Jeffn/aOption exercise23K$0.00$0122K
2026-05-19Nixon Gregory S.n/aDisposition9K$6.88$64K14K
2026-05-19Nixon Gregory S.n/aGrant23K$0.00$023K
2026-05-19Walters Mariann/aOption exercise23K$0.00$0158K
2026-05-19Walters Mariann/aSell8K$7.07$54K135K
2026-05-19Walters Mariann/aOption exercise8K$1.18$9K143K
2026-05-19Urban Davidn/aOption exercise23K$0.00$086K
2026-05-19Demby Clauden/aDisposition9K$6.88$64K156K
2026-05-19Demby Clauden/aOption exercise23K$0.00$0165K
2026-05-19DIMITRIEF ALEXANDERn/aDisposition11K$6.88$74K251K
2026-05-19DIMITRIEF ALEXANDERn/aOption exercise27K$0.00$0262K
2026-05-19Bornstein Jeffrey Sn/aDisposition12K$6.88$85K134K
2026-05-19Bornstein Jeffrey Sn/aOption exercise31K$0.00$0147K
2026-03-09Urban Davidn/aBuy16K$6.16$100K62K
2026-03-04Mastrangelo JoeChief Executive OfficerBuy24K$6.58$157K1.5M
2026-03-02Mastrangelo JoeChief Executive OfficerBuy60K$5.75$345K1.5M
2026-03-02DIMITRIEF ALEXANDERn/aBuy15K$6.04$91K235K
2026-01-26Kroeker NathanCCO and Interim CFOSell50K$16.04$802K663K
2026-01-23Silberman Michael WChief Legal OfficerSell42K$17.74$739K283K
2026-01-23Kroeker NathanCCO and Interim CFOOption exercise100K$0.00$0713K
2026-01-22Silberman Michael WChief Legal OfficerOption exercise83K$0.00$0325K
2025-12-08Stidolph Russell Monokin/aSell235K$14.89$3.5M364K
2025-12-08Stidolph Russell Monokin/aTax withholding11K$14.89$171K600K
2025-12-08Stidolph Russell Monokin/aTax withholding19K$14.89$280K611K
2025-12-08Stidolph Russell Monokin/aOption exercise121K$2.32$280K630K
2025-12-08Stidolph Russell Monokin/aOption exercise145K$1.18$171K509K
2025-12-08Stidolph Russell Monokin/aSell768$14.80$11K364K
2025-12-08Stidolph Russell Monokin/aTax withholding30K$14.80$444K365K
2025-12-08Stidolph Russell Monokin/aOption exercise31K$14.43$444K395K
2025-12-08Stidolph Russell Monokin/aSell30K$15.36$461K2.1M
2025-12-05Stidolph Russell Monokin/aGift15K$0.00$0364K
2025-12-05Stidolph Russell Monokin/aGift60K$0.00$0379K

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

4 Form 144 notices on file for EOSE worth $872K at the prices reported; 4 in the last 90 days worth $872K. Latest: Puri Sumeet filed on 2026-09-09 to sell 34,167 shares ($143K) from 2026-09-09.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-09-09Puri SumeetOfficer34K$143K0.009%2026-09-09UBS Financial Services, Inc.
2026-07-28Puri SumeetOfficer29K$100K0.009%2026-07-28UBS Financial Services, Inc.
2026-07-28Silberman Michael WFormer Officer73K$250K0.021%2026-07-28UBS Financial Services, Inc.
2026-07-28Kroeker NathanOfficer110K$379K0.033%2026-07-28UBS Financial Services Inc.

Large holders (13D and 13G)

One row per reporting person, newest filing first. JSON

7 holders above 5% have filed on EOSE, 7 on Schedule 13D (active intent). The largest reported stake is Cerberus Capital Management II, L.P. at 32.6% of the class (175,829,986 shares), filed 2026-08-06 for an event on 2026-08-04.

FiledFormHolderSharesOf classEvent
2026-08-0613D/Ano. 12Cerberus Capital Management II, L.P.investment adviser, partnership175.8M32.6%2026-08-04
2026-08-0613D/Ano. 12CCM Denali Equity Holdings, LPpartnership175.8M32.6%2026-08-04
2026-08-0613D/Ano. 12CCM Denali Equity Holdings GP, LLCother entity175.8M32.6%2026-08-04
2026-08-0613D/Ano. 12CCM Frontier JV Holdco, LLCother entity20.0M5.2%2026-08-04
2026-08-0613D/Ano. 12CCM Frontier Power USA Holdings, LPpartnership20.0M5.2%2026-08-04
2026-08-0613D/Ano. 12CCM Frontier Power USA Holdings GP, LLCother entity20.0M5.2%2026-08-04
2026-08-0613D/Ano. 12Cerberus GP Manager LLCother entity20.0M5.2%2026-08-04

13F holders

Tracked managers holding EOSE at their latest 13F. JSON

7 of the 30 tracked managers held EOSE at their latest 13F, $236.6M in total at quarter-end prices. Citadel Advisors is the largest at $112.6M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 4 cut.

FundQuarterSharesValueOf portfolioChange in shares
Citadel Advisors2026-06-3019.2M$112.6M0.01%+1.2M
Two Sigma Investments2026-06-3013.7M$80.6M0.06%-1.3M
Point72 Asset Management2026-06-302.7M$15.9M0.02%-437K
D. E. Shaw & Co.2026-06-302.5M$14.7M0.01%-583K
Millennium Management2026-06-301.4M$8.4M0.00%+686K
Bridgewater Associates2026-06-30633K$3.7M0.02%new or n/a
AQR Capital Management2026-06-30118K$695K0.00%-255K

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) Eos Energy Enterprises, Inc. reported revenue of $68.8M, up 351.4% from the same quarter a year earlier, and net loss of $275.7M (-1.20 diluted EPS). In FY 2025 it generated -$211.2M of operating cash flow. As of 2026-06-30, cash was $305.5M against $617.1M of debt.

Cash
$305.5M
Debt
$617.1M
Equity
-$1.03B
Total assets
$906.8M
Shares outstanding
364,167,744

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 20262026-06-30$68.8M-$275.7M-400.9%-1.20
Q1 20262026-03-31$57.0M$508.9M893.4%0.12
Q4 2025derived2025-12-31$58.0Mn/an/an/a
Q3 20252025-09-30$30.5M-$641.4M-2102.1%-4.91
Q2 20252025-06-30$15.2M-$222.9M-1463.2%-1.05
Q1 20252025-03-31$10.5M$15.1M144.7%-0.20
Q4 2024derived2024-12-31$7.3Mn/an/an/a
Q3 20242024-09-30$854K-$342.9M-40148.2%-1.77

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31$114.2Mn/a-$211.2M$53.8Mn/an/a
FY 20242024-12-31$15.6Mn/a-$153.9M$33.2Mn/an/a
FY 20232023-12-31$16.4Mn/a-$145.0M$29.3Mn/an/a
FY 20222022-12-31$17.9M-$229.8M-$196.9M$20.1Mn/an/a
FY 20212021-12-31$4.6M-$124.2M-$116.1M$15.6Mn/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 2026-08-03 from the cover page.

What this page is

Eos Energy Enterprises, 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 Eos Energy Enterprises, Inc. (EOSE), SEC CIK 1805077, listed on Nasdaq, 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 2026-09-09.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 2026-08-06.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 2026-07-21.JSON and CSV
Company record
EDGAR filing index for CIK 1805077Ticker, 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, 12 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 EOSE is sold short?
112,753,376 shares were held short at the 2026-08-14 settlement, 4.1 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 EOSE's daily short volume?
On 2026-09-11, 6,698,610 of the 14,228,506 EOSE shares reported to FINRA were sold short, 47.1% of the day's reported volume. Short volume is a flow for one day, not a position.
Does EOSE have fails to deliver?
The SEC's latest file shows 6,168 EOSE shares failed to deliver at settlement 2026-08-14. Fails are reported per settlement date and published twice a month with a lag.
Are EOSE insiders buying or selling?
Insiders at EOSE reported 1 open-market sell worth $67K in the last 90 days and no open-market buys. Sells alone are a weak signal; insiders sell for tax, diversification and estate reasons all the time. Latest filing: Mastrangelo Joe (Chief Executive Officer) on 2026-07-21.
Have EOSE insiders filed to sell?
4 Form 144 notices on file for EOSE worth $872K at the prices reported; 4 in the last 90 days worth $872K. Latest: Puri Sumeet filed on 2026-09-09 to sell 34,167 shares ($143K) from 2026-09-09.
Who owns more than 5% of EOSE?
7 holders above 5% have filed on EOSE, 7 on Schedule 13D (active intent). The largest reported stake is Cerberus Capital Management II, L.P. at 32.6% of the class (175,829,986 shares), filed 2026-08-06 for an event on 2026-08-04.
What did EOSE report last quarter?
In Q2 2026 (quarter ended 2026-06-30) Eos Energy Enterprises, Inc. reported revenue of $68.8M, up 351.4% from the same quarter a year earlier, and net loss of $275.7M (-1.20 diluted EPS). In FY 2025 it generated -$211.2M of operating cash flow. As of 2026-06-30, cash was $305.5M against $617.1M of debt.
Which funds hold EOSE?
7 of the 30 tracked managers held EOSE at their latest 13F, $236.6M in total at quarter-end prices. Citadel Advisors is the largest at $112.6M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 4 cut.

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