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 |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 2, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Material agreement, Agreement ended, Acquisition or sale of assets
|
Oct 26, 2026 | Oct 21, 2026 |
| 8-K |
Current report
Material agreement, New debt
|
Oct 19, 2026 | Oct 14, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| 8-K |
Current report
Material agreement, New debt
|
Sep 29, 2026 | Sep 24, 2026 |
| 10-Q | Quarterly report | Aug 3, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure, Other events
|
Jul 7, 2026 | Jun 30, 2026 |
| 11-K | Employee savings plan report | Jun 26, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Material agreement
|
May 27, 2026 | May 25, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
May 15, 2026 | May 15, 2026 |
| 8-K |
Current report
Material agreement, New debt
|
May 5, 2026 | Apr 30, 2026 |
| 10-Q | Quarterly report | May 4, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Shareholder vote results
|
May 1, 2026 | Apr 29, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 30, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 29, 2026 | Apr 29, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 24, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| ARS | Annual report to shareholders | Mar 27, 2026 | Dec 31, 2025 |
| DEF 14A | Proxy statement | Mar 27, 2026 | Apr 29, 2026 |
| 8-K |
Current report
Material agreement
|
Feb 24, 2026 | Feb 19, 2026 |
| 424B5 | Prospectus supplement | Feb 19, 2026 | — |
| 10-K | Annual report | Feb 9, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Material agreement, Officer or director change
|
Feb 2, 2026 | Jan 27, 2026 |
| 4 | Insider transaction | Jan 29, 2026 | Jan 27, 2026 |
| 4 | Insider transaction | Jan 29, 2026 | Jan 27, 2026 |
| 4 | Insider transaction | Jan 29, 2026 | Jan 27, 2026 |
| 4 | Insider transaction | Jan 29, 2026 | Jan 27, 2026 |
| 4 | Insider transaction | Jan 29, 2026 | Jan 27, 2026 |
| 8-K |
Current report
Material agreement
|
Jan 29, 2026 | Jan 23, 2026 |
| 4 | Insider transaction | Jan 29, 2026 | Jan 27, 2026 |
| 4 | Insider transaction | Jan 29, 2026 | Jan 27, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Dec 18, 2025 | Dec 15, 2025 |
| 3 | Initial insider ownership | Nov 5, 2025 | Oct 29, 2025 |
| 8-K |
Current report
Officer or director change
|
Nov 4, 2025 | Oct 29, 2025 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure, Other events
|
Nov 3, 2025 | Oct 31, 2025 |
| 10-Q | Quarterly report | Nov 3, 2025 | Sep 30, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Aug 18, 2025 | Aug 14, 2025 |
| 424B5 | Prospectus supplement | Aug 18, 2025 | — |
| 424B5 | Prospectus supplement | Aug 14, 2025 | — |
| 10-Q | Quarterly report | Aug 4, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Material agreement, New debt
|
Jul 14, 2025 | Jul 8, 2025 |
| 11-K | Employee savings plan report | Jun 25, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Material agreement
|
Jun 4, 2025 | Jun 3, 2025 |
| 424B5 | Prospectus supplement | Jun 3, 2025 | — |
| S-3ASR | Automatic shelf registration | Jun 3, 2025 | — |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
May 12, 2025 | May 6, 2025 |
| 10-Q | Quarterly report | May 6, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Shareholder vote results
|
May 5, 2025 | Apr 30, 2025 |
| 3 | Initial insider ownership | May 1, 2025 | Apr 30, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 30, 2025 | Apr 30, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 24, 2025 | — |
| UPLOAD | Letter from the SEC | Apr 16, 2025 | — |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Apr 4, 2025 | Mar 31, 2025 |
| ARS | Annual report to shareholders | Mar 28, 2025 | Dec 31, 2024 |
| DEF 14A | Proxy statement | Mar 28, 2025 | Apr 30, 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 | — |
| 10-K | Annual report | Feb 10, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure, Other events
|
Feb 4, 2025 | Jan 29, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 28, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 28, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 28, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 28, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 28, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 28, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 28, 2025 |
| S-8 | Employee stock plan registration | Jan 21, 2025 | — |
| 4 | Insider transaction | Nov 7, 2024 | Nov 5, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Nov 5, 2024 | Oct 30, 2024 |
| 10-Q | Quarterly report | Nov 4, 2024 | Sep 30, 2024 |
| 3 | Initial insider ownership | Nov 1, 2024 | Oct 30, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 8-K |
Current report
Material agreement, New debt
|
Aug 27, 2024 | Aug 21, 2024 |
| 10-Q | Quarterly report | Aug 6, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Material agreement, New debt
|
Jul 19, 2024 | Jul 18, 2024 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Jul 12, 2024 | Jul 8, 2024 |
| 11-K | Employee savings plan report | Jun 27, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 7, 2024 | May 1, 2024 |
| 10-Q | Quarterly report | May 7, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
May 1, 2024 | May 1, 2024 |
| DEFA14A | Additional proxy material | Apr 8, 2024 | — |
| ARS | Annual report to shareholders | Mar 29, 2024 | Dec 31, 2023 |
| DEF 14A | Proxy statement | Mar 29, 2024 | May 1, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| 10-K | Annual report | Feb 13, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jan 30, 2024 | Jan 30, 2024 |
| 4 | Insider transaction | Jan 30, 2024 | Jan 30, 2024 |
| 4 | Insider transaction | Jan 30, 2024 | Jan 30, 2024 |
| 4 | Insider transaction | Jan 30, 2024 | Jan 30, 2024 |
| 4 | Insider transaction | Jan 30, 2024 | Jan 30, 2024 |
| 4 | Insider transaction | Jan 30, 2024 | Jan 30, 2024 |
| 4 | Insider transaction | Jan 30, 2024 | Jan 30, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 19, 2024 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Dec 5, 2023 | Dec 1, 2023 |
| 10-Q | Quarterly report | Nov 7, 2023 | Sep 30, 2023 |
| 4 | Insider transaction | Oct 4, 2023 | Oct 2, 2023 |
| 4 | Insider transaction | Oct 4, 2023 | Oct 2, 2023 |
| 4 | Insider transaction | Oct 4, 2023 | Oct 2, 2023 |
| 4 | Insider transaction | Oct 4, 2023 | Oct 2, 2023 |
| 4 | Insider transaction | Oct 4, 2023 | Oct 2, 2023 |
| 4 | Insider transaction | Oct 4, 2023 | Oct 2, 2023 |
| 4 | Insider transaction | Oct 4, 2023 | Oct 2, 2023 |
| 4 | Insider transaction | Oct 4, 2023 | Oct 2, 2023 |
| 4 | Insider transaction | Oct 3, 2023 | Oct 2, 2023 |
| 4 | Insider transaction | Oct 3, 2023 | Oct 2, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 23, 2023 | Aug 17, 2023 |
| S-3D | Form s-3d | Aug 16, 2023 | — |
| 10-Q | Quarterly report | Aug 1, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Material agreement, New debt
|
Jul 11, 2023 | Jul 6, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 6, 2023 | Jun 1, 2023 |
| 11-K | Employee savings plan report | Jun 5, 2023 | Dec 31, 2022 |
| 3 | Initial insider ownership | May 5, 2023 | May 1, 2023 |
| 8-K |
Current report
Shareholder vote results
|
May 2, 2023 | Apr 26, 2023 |
| 3 | Initial insider ownership | May 2, 2023 | Apr 26, 2023 |
| 10-Q | Quarterly report | May 2, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Apr 27, 2023 | Apr 26, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 26, 2023 | Apr 26, 2023 |
| DEFA14A | Additional proxy material | Apr 7, 2023 | — |
| ARS | Annual report to shareholders | Mar 28, 2023 | Dec 31, 2022 |
| DEF 14A | Proxy statement | Mar 28, 2023 | — |
| 10-K | Annual report | Feb 14, 2023 | Dec 31, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2023 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Feb 2, 2023 | Feb 1, 2023 |
| 8-K |
Current report
Material agreement, Officer or director change
|
Jan 30, 2023 | Jan 24, 2023 |
| 4 | Insider transaction | Jan 26, 2023 | Jan 24, 2023 |
| 4 | Insider transaction | Jan 26, 2023 | Jan 24, 2023 |
| 4 | Insider transaction | Jan 26, 2023 | Jan 24, 2023 |
| 4 | Insider transaction | Jan 26, 2023 | Jan 24, 2023 |
| 4 | Insider transaction | Jan 26, 2023 | Jan 24, 2023 |
| 4 | Insider transaction | Jan 26, 2023 | Jan 24, 2023 |
| 4 | Insider transaction | Jan 26, 2023 | Jan 24, 2023 |
| 4 | Insider transaction | Jan 26, 2023 | Jan 24, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 23, 2023 | — |
| 4 | Insider transaction | Nov 7, 2022 | Nov 3, 2022 |
| 3 | Initial insider ownership | Nov 2, 2022 | Oct 26, 2022 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Nov 1, 2022 | Oct 26, 2022 |
| 10-Q | Quarterly report | Nov 1, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Material agreement, New debt
|
Oct 5, 2022 | Sep 29, 2022 |
| 4/A | Form 4/a submission | Oct 4, 2022 | Oct 3, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 3, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 3, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 3, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 3, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 3, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 3, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 3, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 3, 2022 |
| 10-Q | Quarterly report | Aug 2, 2022 | Jun 30, 2022 |
| 11-K | Employee savings plan report | Jun 23, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
May 18, 2022 | May 12, 2022 |
| 8-K |
Current report
Shareholder vote results, Regulation FD disclosure
|
May 3, 2022 | Apr 27, 2022 |
| 10-Q | Quarterly report | May 3, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 27, 2022 | Apr 27, 2022 |
| DEF 14A | Proxy statement | Mar 29, 2022 | Apr 27, 2022 |
| 8-K |
Current report
Officer or director change
|
Mar 18, 2022 | Mar 14, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2022 | — |
| 3 | Initial insider ownership | Feb 10, 2022 | Jan 27, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2022 | — |
| 10-K | Annual report | Feb 1, 2022 | Dec 31, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 27, 2022 | — |
| 4 | Insider transaction | Jan 26, 2022 | Jan 25, 2022 |
| 4 | Insider transaction | Jan 26, 2022 | Jan 25, 2022 |
| 4 | Insider transaction | Jan 26, 2022 | Jan 25, 2022 |
| 4 | Insider transaction | Jan 26, 2022 | Jan 25, 2022 |
| 4 | Insider transaction | Jan 26, 2022 | Jan 25, 2022 |
| 4 | Insider transaction | Jan 26, 2022 | Jan 25, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 25, 2022 | — |
| 10-Q | Quarterly report | Nov 2, 2021 | Sep 30, 2021 |
| 4 | Insider transaction | Oct 5, 2021 | Oct 1, 2021 |
| 4 | Insider transaction | Oct 5, 2021 | Oct 1, 2021 |
| 4 | Insider transaction | Oct 5, 2021 | Oct 1, 2021 |
| 4 | Insider transaction | Oct 5, 2021 | Oct 1, 2021 |
Showing 200 filings, the most recent 200. 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.