Otter Tail Corp - OTTR
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 11
Latest filed: Nov 03, 2026
| Form | Count |
|---|---|
| 8-K | 8 |
| 4 | 2 |
| 144 | 1 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Nov 03, 2026 | 8-K | Nov 02, 2026 | 0001466593-26-000078 | View |
| Sep 01, 2026 | 8-K | Aug 28, 2026 | 0001466593-26-000074 | View |
| Aug 12, 2026 | 4 | Aug 10, 2026 | 0001559334-26-000010 | View |
| Aug 11, 2026 | 4 | Aug 07, 2026 | 0001559334-26-000006 | View |
| Aug 07, 2026 | 144 | — | 0001958244-26-000494 | View |
| Aug 04, 2026 | 8-K | Aug 03, 2026 | 0001466593-26-000068 | View |
| Jun 18, 2026 | 8-K | Jun 17, 2026 | 0001466593-26-000063 | View |
| Jun 05, 2026 | 8-K | Jun 04, 2026 | 0001466593-26-000061 | View |
| May 29, 2026 | 8-K | May 28, 2026 | 0001466593-26-000057 | View |
| May 15, 2026 | 8-K | May 15, 2026 | 0001466593-26-000054 | View |
| May 05, 2026 | 8-K | May 04, 2026 | 0001466593-26-000049 | View |