# Acorn Energy, Inc.: overview

ACFN · Nasdaq · CIK 880984 · [Industrials](/sectors/industrials.md) · fiscal year ends Dec 31

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

Latest reported revenue: [$2.5m](/filings/0001493152-26-036270.md) for Q2 FY2026, three months to 2026-06-30, from the 10-Q filed Aug 6, 2026 (XBRL us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax, accession 0001493152-26-036270).

## 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 | $k | [3,050](/filings/0001493152-25-020996.md) | [3,529 d](/filings/0001493152-26-008937.md) | [3,098](/filings/0001493152-26-021622.md) | [3,525](/filings/0001493152-26-036270.md) | [2,478](/filings/0001493152-25-020996.md) | [2,377 d](/filings/0001493152-26-008937.md) | [2,227](/filings/0001493152-26-021622.md) | [2,489](/filings/0001493152-26-036270.md) |
| Gross margin | % | [71.7%](/filings/0001493152-25-020996.md) | [72.4% d](/filings/0001493152-26-008937.md) | [75.1%](/filings/0001493152-26-021622.md) | [74.9%](/filings/0001493152-26-036270.md) | [78.5%](/filings/0001493152-25-020996.md) | [80.1% d](/filings/0001493152-26-008937.md) | [80.2%](/filings/0001493152-26-021622.md) | [82.4%](/filings/0001493152-26-036270.md) |
| Operating margin | % | [24.8%](/filings/0001493152-25-020996.md) | [23.9% d](/filings/0001493152-26-008937.md) | [19.5%](/filings/0001493152-26-021622.md) | [26.9%](/filings/0001493152-26-036270.md) | [6.4%](/filings/0001493152-25-020996.md) | [11.7% d](/filings/0001493152-26-008937.md) | [(5.8%)](/filings/0001493152-26-021622.md) | [15.1%](/filings/0001493152-26-036270.md) |
| Net margin | % | [23.8%](/filings/0001493152-25-020996.md) | [148.3% d](/filings/0001493152-26-008937.md) | [15.0%](/filings/0001493152-26-021622.md) | [20.4%](/filings/0001493152-26-036270.md) | [10.2%](/filings/0001493152-25-020996.md) | [45.2% d](/filings/0001493152-26-008937.md) | [(3.5%)](/filings/0001493152-26-021622.md) | [11.8%](/filings/0001493152-26-036270.md) |
| Diluted EPS | $ per share | [0.29](/filings/0001493152-25-020996.md) | not reported | [0.19](/filings/0001493152-26-021622.md) | [0.28](/filings/0001493152-26-036270.md) | [0.10](/filings/0001493152-25-020996.md) | not reported | [(0.03)](/filings/0001493152-26-021622.md) | [0.12](/filings/0001493152-26-036270.md) |
| Free cash flow | $k | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |

- 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. 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 | [6.8](/filings/0001493152-23-007830.md) | [7.0](/filings/0001493152-24-009150.md) | [8.1](/filings/0001493152-25-009325.md) | [11.0](/filings/0001493152-26-008937.md) | [11.5](/filings/0001493152-26-008937.md) |
| Gross margin | % | [72.3%](/filings/0001493152-23-007830.md) | [72.4%](/filings/0001493152-24-009150.md) | [74.5%](/filings/0001493152-25-009325.md) | [72.8%](/filings/0001493152-26-008937.md) | [76.8%](/filings/0001493152-26-008937.md) |
| Operating margin | % | [(0.1%)](/filings/0001493152-23-007830.md) | [(9.0%)](/filings/0001493152-24-009150.md) | [0.9%](/filings/0001493152-25-009325.md) | [17.6%](/filings/0001493152-26-008937.md) | [17.3%](/filings/0001493152-26-008937.md) |
| Net margin | % | [(0.3%)](/filings/0001493152-23-007830.md) | [(9.0%)](/filings/0001493152-24-009150.md) | [1.5%](/filings/0001493152-25-009325.md) | [57.3%](/filings/0001493152-26-008937.md) | [21.9%](/filings/0001493152-26-008937.md) |
| Diluted EPS | $ per share | [0.00](/filings/0001493152-22-008225.md) | [(0.25)](/filings/0001493152-24-009150.md) | [0.05](/filings/0001493152-25-009325.md) | [2.51](/filings/0001493152-26-008937.md) | [0.99](/filings/0001493152-26-008937.md) |
| Free cash flow | $m | not reported | not reported | not reported | not reported | not reported |

- Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Gross margin (gross profit / revenue). XBRL Gross profit: us-gaap:GrossProfit; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- 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:EarningsPerShareBasicAndDiluted; Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities.

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/acfn/insiders.md)

None in coverage.

## 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 |
| --- | --- | ---: | ---: | --- | --- |
| [VANGUARD CAPITAL MANAGEMENT LLC](/funds/2100119.md) | 2026-06-30 | $646.8k | 37,981 |  | Added +340 |
| [GEODE CAPITAL MANAGEMENT, LLC](/funds/1214717.md) | 2026-06-30 | $309.7k | 18,168 |  | Added +259 |
| [CITADEL ADVISORS LLC](/funds/1423053.md) | 2026-06-30 | $277.9k | 16,321 |  | New +16,321 |
| [BRIDGEWAY CAPITAL MANAGEMENT, LLC](/funds/1107261.md) | 2026-06-30 | $212.9k | 12,500 |  | New +12,500 |
| [Mink Brook Asset Management LLC](/funds/2052205.md) | 2026-06-30 | $170.3k | 10,000 |  | Unchanged |
| [VANGUARD FIDUCIARY TRUST CO](/funds/933478.md) | 2026-06-30 | $143.5k | 8,428 |  | Added +60 |
| [BlackRock, Inc.](/funds/2012383.md) | 2026-06-30 | $92.0k | 5,403 |  | New +5,403 |
| [Access Investment Management LLC](/funds/2010477.md) | 2026-06-30 | $20.4k | 1,200 |  | Unchanged |
| [OSAIC HOLDINGS, INC.](/funds/1677044.md) | 2026-06-30 | $6.0k | 351 |  | Reduced −1,545 |
| [Tower Research Capital LLC (TRC)](/funds/1533421.md) | 2026-06-30 | $5.6k | 327 |  | Added +157 |

## Recent filings

[All 728 filings](/companies/acfn/filings.md)

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-09-18 | 09:00 ET | [8-K](/filings/0001493152-26-043256.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001493152-26-043256 |
| 2026-09-10 | 08:45 ET | [8-K](/filings/0001493152-26-042089.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001493152-26-042089 |
| 2026-08-18 | 08:44 ET | [8-K](/filings/0001493152-26-038905.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001493152-26-038905 |
| 2026-08-06 | 08:32 ET | [8-K](/filings/0001493152-26-036276.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001493152-26-036276 |
| 2026-08-06 | 08:26 ET | [10-Q](/filings/0001493152-26-036270.md) | Quarterly report, period 2026-06-30 | 0001493152-26-036270 |
| 2026-08-03 | 10:16 ET | [DEF 14A](/filings/0001493152-26-035767.md) | Proxy statement, period 2026-08-03 | 0001493152-26-035767 |
| 2026-05-07 | 08:15 ET | [8-K](/filings/0001493152-26-021628.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001493152-26-021628 |
| 2026-05-07 | 08:11 ET | [10-Q](/filings/0001493152-26-021622.md) | Quarterly report, period 2026-03-31 | 0001493152-26-021622 |
| 2026-03-05 | 08:16 ET | [8-K](/filings/0001493152-26-008939.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001493152-26-008939 |
| 2026-03-05 | 08:14 ET | [10-K](/filings/0001493152-26-008937.md) | Annual report, period 2025-12-31 | 0001493152-26-008937 |

## Latest annual report

[Form 10-K for the fiscal year ended Dec 31, 2025](/filings/0001493152-26-008937.md), filed Mar 5, 2026.

## Forecast league

Q3 FY2026, the quarter ended 2026-09-30, is open for forecasts until the first results filing for it is accepted by EDGAR. Results are due by \[object Promise\]. [Forecast this quarter](/leagues/2026q3/targets/0088780c-b81f-4a43-b60e-00b3832133de)

## About the filer

- CIK: 880984
- Tickers: ACFN
- Exchange: Nasdaq
- SIC code: 8711 Services-Engineering Services
- State of incorporation: DE
- Filer category: Non-accelerated filer<br>Smaller reporting company

Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 24, 2026, 15:27 ET. No prices; not investment advice.
