# Unitil Corp: filings

UTL · NYSE · CIK 755001 · [Utilities](/sectors/utilities.md) · fiscal year ends Dec 31

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

## Reports and events: 272 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 375, 8-K 175, 10-Q 53, 5 51, SC 13G/A 37, 10-K 18, 11-K 18, DEF 14A 18, 3 17, UPLOAD 16, 424B5 12, CORRESP 12, SC 13G 9, 4/A 6, 5/A 5, 8-K/A 5, ARS 5, S-3 4, DEFA14A 3, EFFECT 3, S-8 3, SCHEDULE 13G/A 3, FWP 2, S-3/A 2, S-3ASR 2, SC 13D/A 2, 8-A12B/A 1, NO ACT 1, PRE 14A 1, S-3D 1, S-3DPOS 1, SC 13D 1, SCHEDULE 13G 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-26 | 16:30 ET | [8-K](/filings/0000755001-26-000035.md) | 1.01 Entry into a material agreement; 1.02 Termination of a material agreement; 2.01 Completion of an acquisition or disposition; 9.01 Financial statements and exhibits | 0000755001-26-000035 |
| 2026-10-19 | 16:30 ET | [8-K](/filings/0000755001-26-000033.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000755001-26-000033 |
| 2026-09-29 | 16:30 ET | [8-K](/filings/0000755001-26-000031.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000755001-26-000031 |
| 2026-08-03 | 17:00 ET | [10-Q](/filings/0000755001-26-000029.md) | Quarterly report, period 2026-06-30 | 0000755001-26-000029 |
| 2026-07-07 | 16:30 ET | [8-K](/filings/0000755001-26-000026.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0000755001-26-000026 |
| 2026-05-27 | 16:30 ET | [8-K](/filings/0000755001-26-000019.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0000755001-26-000019 |
| 2026-05-15 | 16:45 ET | [8-K](/filings/0000755001-26-000016.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000755001-26-000016 |
| 2026-05-05 | 16:30 ET | [8-K](/filings/0000755001-26-000012.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000755001-26-000012 |
| 2026-05-04 | 17:00 ET | [10-Q](/filings/0000755001-26-000010.md) | Quarterly report, period 2026-03-31 | 0000755001-26-000010 |
| 2026-05-01 | 17:00 ET | [8-K](/filings/0000755001-26-000008.md) | 5.07 Shareholder vote results | 0000755001-26-000008 |
| 2026-04-29 | 07:30 ET | [8-K](/filings/0000755001-26-000004.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000755001-26-000004 |
| 2026-03-27 | 13:00 ET | [DEF 14A](/filings/0001193125-26-128263.md) | Proxy statement, period 2026-04-29 | 0001193125-26-128263 |
| 2026-02-24 | 16:31 ET | [8-K](/filings/0001193125-26-067209.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001193125-26-067209 |
| 2026-02-09 | 17:01 ET | [10-K](/filings/0001193125-26-042983.md) | Annual report, period 2025-12-31 | 0001193125-26-042983 |
| 2026-02-02 | 17:03 ET | [8-K](/filings/0001193125-26-033824.md) | 1.01 Entry into a material agreement; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001193125-26-033824 |
| 2026-01-29 | 16:30 ET | [8-K](/filings/0001193125-26-029469.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001193125-26-029469 |
| 2025-12-18 | 16:45 ET | [8-K](/filings/0001193125-25-324977.md) | 7.01 Regulation FD disclosure; 8.01 Other events | 0001193125-25-324977 |
| 2025-11-04 | 16:30 ET | [8-K](/filings/0001193125-25-264824.md) | 5.02 Departure or appointment of officers or directors | 0001193125-25-264824 |
| 2025-11-03 | 17:15 ET | [8-K](/filings/0001193125-25-262797.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-25-262797 |
| 2025-11-03 | 17:01 ET | [10-Q](/filings/0001193125-25-262745.md) | Quarterly report, period 2025-09-30 | 0001193125-25-262745 |
| 2025-08-18 | 18:11 ET | [8-K](/filings/0001193125-25-181993.md) | 1.01 Entry into a material agreement; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-25-181993 |
| 2025-08-04 | 17:00 ET | [10-Q](/filings/0000950170-25-102121.md) | Quarterly report, period 2025-06-30 | 0000950170-25-102121 |
| 2025-07-14 | 16:45 ET | [8-K](/filings/0001193125-25-158782.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001193125-25-158782 |
| 2025-06-04 | 21:00 ET | [8-K](/filings/0001193125-25-134288.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001193125-25-134288 |
| 2025-05-12 | 16:45 ET | [8-K](/filings/0001193125-25-117855.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-25-117855 |
| 2025-05-06 | 17:00 ET | [10-Q](/filings/0000950170-25-064590.md) | Quarterly report, period 2025-03-31 | 0000950170-25-064590 |
| 2025-05-05 | 16:45 ET | [8-K](/filings/0001193125-25-112835.md) | 5.07 Shareholder vote results | 0001193125-25-112835 |
| 2025-04-30 | 07:00 ET | [8-K](/filings/0001193125-25-105646.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-25-105646 |
| 2025-04-04 | 16:45 ET | [8-K](/filings/0001193125-25-073493.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-25-073493 |
| 2025-03-28 | 11:00 ET | [DEF 14A](/filings/0001193125-25-066425.md) | Proxy statement, period 2025-04-30 | 0001193125-25-066425 |
| 2025-02-10 | 17:00 ET | [10-K](/filings/0000950170-25-017154.md) | Annual report, period 2024-12-31 | 0000950170-25-017154 |
| 2025-02-04 | 17:08 ET | [8-K](/filings/0001193125-25-020122.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-25-020122 |
| 2024-11-05 | 16:30 ET | [8-K](/filings/0001193125-24-251276.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-24-251276 |
| 2024-11-04 | 17:00 ET | [10-Q](/filings/0000950170-24-120859.md) | Quarterly report, period 2024-09-30 | 0000950170-24-120859 |
| 2024-08-27 | 16:15 ET | [8-K](/filings/0001193125-24-207775.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001193125-24-207775 |
| 2024-08-06 | 07:00 ET | [10-Q](/filings/0000950170-24-091194.md) | Quarterly report, period 2024-06-30 | 0000950170-24-091194 |
| 2024-07-19 | 07:01 ET | [8-K](/filings/0001193125-24-181278.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001193125-24-181278 |
| 2024-07-12 | 16:30 ET | [8-K](/filings/0001193125-24-178604.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-24-178604 |
| 2024-05-07 | 16:30 ET | [8-K](/filings/0001193125-24-133173.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001193125-24-133173 |
| 2024-05-07 | 07:08 ET | [10-Q](/filings/0000950170-24-053926.md) | Quarterly report, period 2024-03-31 | 0000950170-24-053926 |
| 2024-05-01 | 08:00 ET | [8-K](/filings/0001193125-24-126364.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-24-126364 |
| 2024-03-29 | 11:00 ET | [DEF 14A](/filings/0001193125-24-081680.md) | Proxy statement, period 2024-05-01 | 0001193125-24-081680 |
| 2024-02-13 | 07:00 ET | [10-K](/filings/0000950170-24-014186.md) | Annual report, period 2023-12-31 | 0000950170-24-014186 |
| 2023-12-05 | 16:30 ET | [8-K](/filings/0001193125-23-289191.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-23-289191 |
| 2023-11-07 | 07:00 ET | [10-Q](/filings/0000950170-23-059748.md) | Quarterly report, period 2023-09-30 | 0000950170-23-059748 |
| 2023-08-23 | 16:30 ET | [8-K](/filings/0001193125-23-219155.md) | 7.01 Regulation FD disclosure | 0001193125-23-219155 |
| 2023-08-01 | 07:00 ET | [10-Q](/filings/0000950170-23-036158.md) | Quarterly report, period 2023-06-30 | 0000950170-23-036158 |
| 2023-07-11 | 16:30 ET | [8-K](/filings/0001193125-23-185358.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001193125-23-185358 |
| 2023-06-06 | 16:45 ET | [8-K](/filings/0001193125-23-161689.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-23-161689 |
| 2023-05-02 | 16:45 ET | [8-K](/filings/0001193125-23-132580.md) | 5.07 Shareholder vote results | 0001193125-23-132580 |

Page 1 of 6. [Older](/companies/utl/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 26, 2026, 16:31 ET. No prices; not investment advice.