Unitil Corp SEC filings UTL
Unitil Corp has 1,000 filings in SEC EDGAR's recent list, going back to Feb 12, 2007. Its latest annual report, Form ARS, was filed on Mar 27, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 2, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 26, 2026 (material agreement, agreement ended, acquisition or sale of assets). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 11-K | Employee savings plan report | Jun 26, 2026 | Dec 31, 2025 |
| 11-K | Employee savings plan report | Jun 25, 2025 | Dec 31, 2024 |
| UPLOAD | Letter from the SEC | Apr 16, 2025 | — |
| CORRESP | Letter to the SEC | Mar 20, 2025 | — |
| CORRESP | Letter to the SEC | Mar 11, 2025 | — |
| UPLOAD | Letter from the SEC | Feb 27, 2025 | — |
| 11-K | Employee savings plan report | Jun 27, 2024 | Dec 31, 2023 |
| 11-K | Employee savings plan report | Jun 5, 2023 | Dec 31, 2022 |
| 11-K | Employee savings plan report | Jun 23, 2022 | Dec 31, 2021 |
| 11-K | Employee savings plan report | Jun 21, 2021 | Dec 31, 2020 |
| 11-K | Employee savings plan report | Jun 24, 2020 | Dec 31, 2019 |
| UPLOAD | Letter from the SEC | Apr 1, 2020 | — |
| CORRESP | Letter to the SEC | Mar 23, 2020 | — |
| UPLOAD | Letter from the SEC | Mar 11, 2020 | — |
| 11-K | Employee savings plan report | Jun 6, 2019 | Dec 31, 2018 |
| 11-K | Employee savings plan report | Jun 12, 2018 | Dec 31, 2017 |
| EFFECT | Filing | Dec 8, 2017 | — |
| CORRESP | Letter to the SEC | Dec 5, 2017 | — |
| UPLOAD | Letter from the SEC | Nov 13, 2017 | — |
| 8-A12B/A | 8-a12b/a (amendment no. 3) | Nov 3, 2017 | — |
| 11-K | Employee savings plan report | Jun 7, 2017 | Dec 31, 2016 |
| 11-K | Employee savings plan report | Jun 8, 2016 | Dec 31, 2015 |
| NO ACT | Auto-generated paper document | Jan 8, 2016 | Dec 18, 2015 |
| UPLOAD | Letter from the SEC | Dec 8, 2015 | — |
| CORRESP | Letter to the SEC | Nov 25, 2015 | — |
| UPLOAD | Letter from the SEC | Nov 17, 2015 | — |
| 11-K | Employee savings plan report | Jun 11, 2015 | Dec 31, 2014 |
| 11-K | Employee savings plan report | Jun 11, 2014 | Dec 31, 2013 |
| 11-K | Employee savings plan report | Jun 20, 2013 | Dec 31, 2012 |
| UPLOAD | Letter from the SEC | Mar 5, 2013 | — |
| CORRESP | Letter to the SEC | Feb 19, 2013 | — |
| UPLOAD | Letter from the SEC | Feb 12, 2013 | — |
| CORRESP | Letter to the SEC | Jan 15, 2013 | — |
| UPLOAD | Letter from the SEC | Jan 10, 2013 | — |
| CORRESP | Letter to the SEC | Dec 21, 2012 | — |
| UPLOAD | Letter from the SEC | Dec 11, 2012 | — |
| CORRESP | Letter to the SEC | Nov 19, 2012 | — |
| UPLOAD | Letter from the SEC | Nov 6, 2012 | — |
| CORRESP | Letter to the SEC | Oct 23, 2012 | — |
| UPLOAD | Letter from the SEC | Oct 10, 2012 | — |
| 11-K | Employee savings plan report | Jun 27, 2012 | Dec 31, 2011 |
| EFFECT | Filing | Apr 11, 2012 | — |
| 11-K | Employee savings plan report | Jun 23, 2011 | Dec 31, 2010 |
| UPLOAD | Letter from the SEC | Oct 28, 2010 | — |
| CORRESP | Letter to the SEC | Oct 20, 2010 | — |
| UPLOAD | Letter from the SEC | Oct 12, 2010 | — |
| CORRESP | Letter to the SEC | Oct 4, 2010 | — |
| UPLOAD | Letter from the SEC | Sep 23, 2010 | — |
| 11-K | Employee savings plan report | Jun 21, 2010 | Dec 31, 2009 |
| 11-K | Employee savings plan report | Jun 29, 2009 | Dec 31, 2008 |
| EFFECT | Filing | Apr 29, 2009 | — |
| EFFECT | Filing | Dec 5, 2008 | — |
| CERTNYS | Auto-generated paper document | Aug 18, 2008 | — |
| 8-A12B/A | Form 8-a/a | Aug 13, 2008 | — |
| 25 | Form 25 | Aug 11, 2008 | — |
| 11-K | Employee savings plan report | Jun 30, 2008 | Dec 31, 2007 |
| UPLOAD | Letter from the SEC | May 16, 2008 | — |
| CORRESP | Letter to the SEC | Apr 24, 2008 | — |
| UPLOAD | Letter from the SEC | Apr 10, 2008 | — |
| 11-K | Employee savings plan report | Jun 29, 2007 | Dec 31, 2006 |
Showing 60 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
- Electric & Other Services Combined (SIC 4931)
- Listed as
- UTL (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- NH
- Headquarters
- Hampton, NH
- SEC filer status
- Large accelerated filer
- SEC CIK
- 755001
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.