Otter Tail Corp — DEF 14A Filings
17 DEF 14A filings on record
This page lists all DEF 14A filings submitted to the SEC by Otter Tail Corp (OTTR), sorted by most recent first. Each row links to the full filing on EdgarLookup. Otter Tail Corp has filed 17 DEF 14A documents with the SEC since 2009. To view all SEC filings by Otter Tail Corp, see the full filings list.
All
10-K
10-K/A
10-Q
10-Q/A
144
15-12G
3
3/A
4
4/A
424B2
424B5
5
8-K
8-K/A
8-K12G3
ARS
CORRESP
CT ORDER
DEF 14A
DEFA14A
DEFR14A
FWP
POSASR
PRE 14A
S-3ASR
S-8
S-8 POS
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| DEF 14A | DEF 14A | 0001466593-26-000023 | Mar 2, 2026 | Apr 13, 2026 |
| DEF 14A | DEF 14A | 0001466593-25-000049 | Mar 3, 2025 | Dec 31, 2024 |
| DEF 14A | DEF 14A | 0001466593-24-000055 | Feb 28, 2024 | Dec 31, 2023 |
| DEF 14A | DEF 14A | 0001466593-23-000072 | Mar 1, 2023 | — |
| DEF 14A | DEF 14A | 0001466593-22-000015 | Mar 2, 2022 | Dec 31, 2021 |
| DEF 14A | DEF 14A | 0001466593-21-000014 | Mar 3, 2021 | Dec 31, 2020 |
| DEF 14A | DEF 14A | 0001193125-20-065955 | Mar 9, 2020 | Apr 20, 2020 |
| DEF 14A | DEF 14A | 0001193125-19-052901 | Feb 27, 2019 | Apr 8, 2019 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0001193125-18-062384 | Feb 28, 2018 | Apr 9, 2018 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0001193125-17-063791 | Mar 1, 2017 | Apr 10, 2017 |
| DEF 14A | DEF 14A | 0001193125-16-487031 | Mar 1, 2016 | Apr 11, 2016 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0001193125-15-074680 | Mar 3, 2015 | Apr 13, 2015 |
| DEF 14A | DEFINITIVE NOTICE AND PROXY STATEMENT | 0001193125-14-080259 | Mar 3, 2014 | Apr 14, 2014 |
| DEF 14A | PROXY STATEMENT | 0001193125-13-079246 | Feb 27, 2013 | Apr 8, 2013 |
| DEF 14A | NOA & PROXY STATEMENT | 0001193125-12-100667 | Mar 7, 2012 | Apr 16, 2012 |
| DEF 14A | DEF 14A | 0000950123-11-021083 | Mar 2, 2011 | Apr 11, 2011 |
| DEF 14A | DEF 14A | 0000950123-10-021314 | Mar 5, 2010 | Apr 12, 2010 |