Otter Tail Corp of FERGUS FALLS, MN filed a DEFA14A with the SEC on 2026-03-02. Industry: Electric Services.
| Seq | Type | Description |
|---|---|---|
| 1 | DEFA14A | DEFA14A |
| 2 | GRAPHIC | GRAPHIC |
| 3 | GRAPHIC | GRAPHIC |
Showing 12 of 26 filings.
| Filed | Form |
|---|---|
| 2026-03-02 | DEFA14A |
| 2026-03-02 | DEF 14A |
| 2026-02-18 | PRE 14A |
| 2025-03-03 | DEF 14A |
| 2025-03-03 | DEFA14A |
| 2024-02-28 | DEFA14A |
| 2024-02-28 | DEF 14A |
| 2023-03-07 | DEFA14A |
| 2023-03-07 | DEFR14A |
| 2023-03-01 | DEF 14A |
| 2022-03-02 | DEF 14A |
| 2021-03-03 | DEF 14A |