Acorn Energy, Inc. SEC filings ACFN
Acorn Energy, Inc. has 1,002 filings in SEC EDGAR's recent list, going back to Jun 26, 2003. Its latest annual report, Form 10-K, was filed on Mar 5, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| CERT | Filing | Jul 23, 2025 | — |
| 8-A12B | Filing | Jul 23, 2025 | — |
| D | Filing | Jul 15, 2019 | — |
| EFFECT | Filing | Jun 6, 2019 | — |
| CORRESP | Letter to the SEC | Jun 4, 2019 | — |
| UPLOAD | Letter from the SEC | May 17, 2019 | — |
| UPLOAD | Letter from the SEC | Sep 11, 2015 | — |
| CORRESP | Letter to the SEC | Sep 9, 2015 | — |
| UPLOAD | Letter from the SEC | Sep 9, 2015 | — |
| D | Filing | Aug 27, 2015 | — |
| 25-NSE | Delisting notice | Aug 27, 2015 | — |
| SD | Specialized disclosure (conflict minerals) | May 28, 2015 | — |
| EFFECT | Filing | Nov 25, 2014 | — |
| D | Filing | Nov 17, 2014 | — |
| SD | Specialized disclosure (conflict minerals) | Jun 2, 2014 | — |
| UPLOAD | Letter from the SEC | Sep 20, 2012 | — |
| CORRESP | Letter to the SEC | Sep 19, 2012 | — |
| UPLOAD | Letter from the SEC | Sep 7, 2012 | — |
| CORRESP | Letter to the SEC | Aug 31, 2012 | — |
| CORRESP | Letter to the SEC | Aug 10, 2012 | — |
| UPLOAD | Letter from the SEC | Aug 6, 2012 | — |
| CORRESP | Letter to the SEC | Jul 26, 2012 | — |
| CORRESP | Letter to the SEC | Jul 24, 2012 | — |
| UPLOAD | Letter from the SEC | Jul 10, 2012 | — |
| CT ORDER | Filing | Apr 25, 2012 | — |
| EFFECT | Filing | Oct 27, 2010 | — |
| CORRESP | Letter to the SEC | Oct 25, 2010 | — |
| CORRESP | Letter to the SEC | Oct 15, 2010 | — |
| UPLOAD | Letter from the SEC | Oct 12, 2010 | — |
| UPLOAD | Letter from the SEC | Sep 7, 2010 | — |
| CORRESP | Letter to the SEC | Sep 3, 2010 | — |
| UPLOAD | Letter from the SEC | Aug 31, 2010 | — |
| CORRESP | Letter to the SEC | Jul 29, 2010 | — |
| CORRESP | Letter to the SEC | Jul 15, 2010 | — |
| UPLOAD | Letter from the SEC | Jul 2, 2010 | — |
| EFFECT | Filing | Sep 16, 2009 | — |
| CORRESP | Letter to the SEC | Sep 14, 2009 | — |
| UPLOAD | Letter from the SEC | Aug 19, 2009 | — |
| EFFECT | Filing | Apr 7, 2009 | — |
| EFFECT | Filing | Apr 7, 2009 | — |
| EFFECT | Filing | Mar 24, 2009 | — |
| EFFECT | Filing | Mar 24, 2009 | — |
| EFFECT | Filing | Mar 24, 2009 | — |
| NT 10-Q | Filing | May 16, 2008 | Mar 31, 2008 |
| NT 10-K | Filing | Apr 1, 2008 | Dec 31, 2007 |
| CERTNAS | Auto-generated paper document | Dec 14, 2007 | — |
| 8-A12B | Filing | Dec 13, 2007 | — |
| NT 10-Q | Filing | Nov 15, 2007 | Sep 30, 2007 |
| EFFECT | Filing | Sep 26, 2007 | — |
| EFFECT | Filing | Sep 24, 2007 | — |
| UPLOAD | Letter from the SEC | Sep 7, 2007 | — |
| NT 10-Q | Filing | Aug 15, 2007 | Jun 30, 2007 |
| UPLOAD | Letter from the SEC | Jul 10, 2007 | — |
| NT 10-Q | Filing | May 16, 2007 | Mar 31, 2007 |
| NT 10-K | Filing | Mar 30, 2007 | Dec 31, 2006 |
| EFFECT | Filing | Dec 20, 2006 | — |
| CORRESP | Letter to the SEC | Dec 19, 2006 | — |
| NT 10-Q | Filing | Nov 15, 2006 | Sep 30, 2006 |
| UPLOAD | Letter from the SEC | Nov 14, 2006 | — |
| UPLOAD | Letter from the SEC | Sep 6, 2006 | — |
| REGDEX/A | Auto-generated paper document | Aug 8, 2006 | — |
| REGDEX | Auto-generated paper document | Jul 28, 2006 | — |
| NT 10-Q | Filing | May 16, 2006 | Mar 31, 2006 |
| NT 10-K | Filing | Apr 3, 2006 | Dec 31, 2005 |
| 15-12G | Deregistration | Mar 23, 2006 | — |
| CORRESP | Letter to the SEC | Feb 27, 2006 | — |
| CORRESP | Letter to the SEC | Jan 24, 2006 | — |
| CORRESP | Letter to the SEC | Dec 30, 2005 | — |
| UPLOAD | Letter from the SEC | Dec 21, 2005 | — |
| UPLOAD | Letter from the SEC | Dec 21, 2005 | — |
| NT 10-Q | Filing | Nov 15, 2005 | Sep 30, 2005 |
| CORRESP | Letter to the SEC | Oct 17, 2005 | — |
| CORRESP | Letter to the SEC | Sep 30, 2005 | — |
| NT 10-K | Filing | Apr 1, 2005 | Dec 31, 2004 |
| NT 10-K | Filing | Mar 31, 2004 | Dec 31, 2003 |
| RW | Filing | Jun 26, 2003 | — |
Showing 76 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Services-Engineering Services (SIC 8711)
- Listed as
- ACFN (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Wilmington, DE
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 880984
- Former names
- ACORN FACTOR, INC. (until Jan 4, 2008); DATA SYSTEMS & SOFTWARE INC (until Sep 6, 2006)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.