# Eos Energy Enterprises, Inc.: overview

EOSE · Nasdaq · CIK 1805077 · [Technology](/sectors/technology.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/eose.md) · [Financials](/companies/eose/financials.md) · [Filings](/companies/eose/filings.md) · [Insiders](/companies/eose/insiders.md)

Latest reported revenue: [$68.8m](/filings/0001628280-26-052906.md) for Q2 FY2026, three months to 2026-06-30, from the 10-Q filed Aug 5, 2026 (XBRL us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax, accession 0001628280-26-052906).

## Last eight quarters

| Line item | Unit | Q3 FY2024 (2024-09-30) | Q4 FY2024 (2024-12-31) | Q1 FY2025 (2025-03-31) | Q2 FY2025 (2025-06-30) | Q3 FY2025 (2025-09-30) | Q4 FY2025 (2025-12-31) | Q1 FY2026 (2026-03-31) | Q2 FY2026 (2026-06-30) |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
| Revenue | $m | [0.9](/filings/0001628280-25-049588.md) | [7.3 d](/filings/0001628280-26-011961.md) | [10.5](/filings/0001628280-26-034368.md) | [15.2](/filings/0001628280-26-052906.md) | [30.5](/filings/0001628280-25-049588.md) | [58.0 d](/filings/0001628280-26-011961.md) | [57.0](/filings/0001628280-26-034368.md) | [68.8](/filings/0001628280-26-052906.md) |
| Gross margin | % | [(2916.9%)](/filings/0001628280-25-049588.md) | [(324.0%) d](/filings/0001628280-26-011961.md) | [(234.7%)](/filings/0001628280-26-034368.md) | [(203.2%)](/filings/0001628280-26-052906.md) | [(111.2%)](/filings/0001628280-25-049588.md) | [(93.8%) d](/filings/0001628280-26-011961.md) | [(78.0%)](/filings/0001628280-26-034368.md) | [(71.0%)](/filings/0001628280-26-052906.md) |
| Operating margin | % | [(6244.3%)](/filings/0001628280-25-049588.md) | [(712.8%) d](/filings/0001628280-26-011961.md) | [(506.2%)](/filings/0001628280-26-034368.md) | [(419.1%)](/filings/0001628280-26-052906.md) | [(200.6%)](/filings/0001628280-25-049588.md) | [(140.1%) d](/filings/0001628280-26-011961.md) | [(139.2%)](/filings/0001628280-26-034368.md) | [(121.9%)](/filings/0001628280-26-052906.md) |
| Net margin | % | [(40148.2%)](/filings/0001628280-25-049588.md) | [(3696.7%) d](/filings/0001628280-26-011961.md) | [144.7%](/filings/0001628280-26-034368.md) | [(1463.2%)](/filings/0001628280-26-052906.md) | [(2102.1%)](/filings/0001628280-25-049588.md) | [(207.7%) d](/filings/0001628280-26-011961.md) | [893.4%](/filings/0001628280-26-034368.md) | [(400.9%)](/filings/0001628280-26-052906.md) |
| Diluted EPS | $ per share | [(1.77)](/filings/0001628280-25-049588.md) | not reported | [(0.20)](/filings/0001628280-26-034368.md) | [(1.05)](/filings/0001628280-26-052906.md) | [(4.91)](/filings/0001628280-25-049588.md) | not reported | [0.12](/filings/0001628280-26-034368.md) | [(1.20)](/filings/0001628280-26-052906.md) |
| Free cash flow | $m | [(54.2) d](/filings/0001628280-25-049588.md) | [(55.8) d](/filings/0001628280-26-011961.md) | [(33.8)](/filings/0001628280-26-034368.md) | [(73.2) d](/filings/0001628280-26-052906.md) | [(82.7) d](/filings/0001628280-25-049588.md) | [(75.2) d](/filings/0001628280-26-011961.md) | [(155)](/filings/0001628280-26-034368.md) | [(107) d](/filings/0001628280-26-052906.md) |

- Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Gross margin (gross profit / revenue). XBRL Gross profit: us-gaap:GrossProfit; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. Derived values: 9-month figure less the 6-month figure; 12-month figure less the 9-month figure; 6-month figure less the 3-month figure.

## Last five fiscal years

| Line item | Unit | FY2021 (2021-12-31) | FY2022 (2022-12-31) | FY2023 (2023-12-31) | FY2024 (2024-12-31) | FY2025 (2025-12-31) |
| --- | --- | ---: | ---: | ---: | ---: | ---: |
| Revenue | $m | [4.6](/filings/0001628280-23-005647.md) | [17.9](/filings/0001805077-24-000013.md) | [16.4](/filings/0001805077-25-000015.md) | [15.6](/filings/0001628280-26-011961.md) | [114](/filings/0001628280-26-011961.md) |
| Gross margin | % | not reported | not reported | [(448.3%)](/filings/0001805077-25-000015.md) | [(533.5%)](/filings/0001628280-26-011961.md) | [(125.9%)](/filings/0001628280-26-011961.md) |
| Operating margin | % | [(2930.1%)](/filings/0001628280-23-005647.md) | [(1234.4%)](/filings/0001805077-24-000013.md) | [(933.8%)](/filings/0001805077-25-000015.md) | [(1122.6%)](/filings/0001628280-26-011961.md) | [(227.0%)](/filings/0001628280-26-011961.md) |
| Net margin | % | [(2701.5%)](/filings/0001628280-23-005647.md) | [(1282.2%)](/filings/0001805077-24-000013.md) | [(1401.3%)](/filings/0001805077-25-000015.md) | [(4394.9%)](/filings/0001628280-26-011961.md) | [(849.1%)](/filings/0001628280-26-011961.md) |
| Diluted EPS | $ per share | [(2.36)](/filings/0001628280-23-005647.md) | [(3.68)](/filings/0001805077-24-000013.md) | [(1.81)](/filings/0001805077-25-000015.md) | [(4.55)](/filings/0001628280-26-011961.md) | [(6.69)](/filings/0001628280-26-011961.md) |
| Free cash flow | $m | [(132)](/filings/0001628280-23-005647.md) | [(217)](/filings/0001805077-24-000013.md) | [(174)](/filings/0001805077-25-000015.md) | [(187)](/filings/0001628280-26-011961.md) | [(265)](/filings/0001628280-26-011961.md) |

- Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Gross margin (gross profit / revenue). XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax; Gross profit: us-gaap:GrossProfit.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment.

Each value links to the filing it came from. d marks a derived value. A ratio is not reported when any input is missing.

## Insider purchases and sales

The last 20 open-market transactions on Form 4 (codes P and S). Reported price is as stated on the form, not a market price. [All insider transactions](/companies/eose/insiders.md)

| Date | Insider | Role | Transaction | Shares | Reported price | Value | Filing |
| --- | --- | --- | --- | ---: | ---: | ---: | --- |
| 2026-10-29 | [Buczkowski Michelle](/insiders/2096705.md) | Chief Commercial Officer, Officer | Sale (S) | 50,000 | $2.00 | $100.0k | [Form 4](/filings/0001628280-26-068288.md) |

## Funds that report holding it

From each manager’s latest Form 13F, largest reported value first. Reported value is as filed: filing data, not a price. [All funds](/funds.md)

| Fund | Quarter ended | Reported value | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | --- | --- |
| [BlackRock, Inc.](/funds/2012383.md) | 2026-06-30 | $159.5m | 27,130,305 |  | Added +3,046,526 |
| [VANGUARD CAPITAL MANAGEMENT LLC](/funds/2100119.md) | 2026-06-30 | $88.3m | 15,021,392 |  | Added +185,955 |
| [Hudson Bay Capital Management LP](/funds/1393825.md) | 2026-06-30 | $80.5m | 13,683,634 |  | New +13,683,634 |
| [Driehaus Capital Management LLC](/funds/938206.md) | 2026-06-30 | $79.7m | 13,556,010 |  | Reduced −1,313,160 |
| [TWO SIGMA INVESTMENTS, LP](/funds/1179392.md) | 2026-06-30 | $75.2m | 12,783,883 |  | Reduced −1,290,118 |
| [CITADEL ADVISORS LLC](/funds/1423053.md) | 2026-06-30 | $62.2m | 10,581,900 | Call | Added +2,210,100 |
| [STATE STREET CORP](/funds/93751.md) | 2026-06-30 | $59.7m | 10,154,935 |  | Added +2,137,005 |
| [SUSQUEHANNA INTERNATIONAL GROUP, LLP](/funds/1446194.md) | 2026-06-30 | $58.1m | 9,883,600 | Put | Added +1,301,700 |
| [SUSQUEHANNA INTERNATIONAL GROUP, LLP](/funds/1446194.md) | 2026-06-30 | $56.9m | 9,683,190 |  | Added +3,332,709 |
| [GEODE CAPITAL MANAGEMENT, LLC](/funds/1214717.md) | 2026-06-30 | $52.3m | 8,894,922 |  | Added +1,082,028 |

## Recent filings

[All 788 filings](/companies/eose/filings.md)

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-19 | 08:33 ET | [8-K](/filings/0001628280-26-066229.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-26-066229 |
| 2026-09-16 | 16:24 ET | [8-K/A](/filings/0001628280-26-062265.md) | 5.02 Departure or appointment of officers or directors | 0001628280-26-062265 |
| 2026-09-14 | 08:31 ET | [8-K](/filings/0001628280-26-061689.md) | 2.03 New direct financial obligation; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-26-061689 |
| 2026-08-25 | 16:16 ET | [8-K](/filings/0001628280-26-058890.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-26-058890 |
| 2026-08-06 | 16:53 ET | [SCHEDULE 13D/A](/filings/0001011438-26-000469.md) | Ownership report, active investor, amended | 0001011438-26-000469 |
| 2026-08-06 | 16:30 ET | [8-K](/filings/0000950103-26-012019.md) | 1.01 Entry into a material agreement; 3.02 Unregistered sale of equity; 9.01 Financial statements and exhibits | 0000950103-26-012019 |
| 2026-08-05 | 07:00 ET | [10-Q](/filings/0001628280-26-052906.md) | Quarterly report, period 2026-06-30 | 0001628280-26-052906 |
| 2026-08-05 | 06:54 ET | [8-K](/filings/0001628280-26-052903.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-26-052903 |
| 2026-07-23 | 08:42 ET | [8-K](/filings/0001628280-26-049296.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-26-049296 |
| 2026-07-15 | 08:18 ET | [8-K](/filings/0001628280-26-048253.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-26-048253 |

## Latest annual report

[Form 10-K for the fiscal year ended Dec 31, 2025](/filings/0001628280-26-011961.md), filed Feb 26, 2026.

## Forecast league

Not in this season’s league. [This season’s league](/leagues.md)

## About the filer

- CIK: 1805077
- Tickers: EOSE, EOSEW
- Exchange: Nasdaq
- SIC code: 3690 Miscellaneous Electrical Machinery, Equipment & Supplies
- State of incorporation: DE
- Filer category: Non-accelerated filer

Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 29, 2026, 16:52 ET. No prices; not investment advice.