Otter Tail Corp — All Filings
843 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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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 |
|---|---|---|---|---|
| 4 | FORM 4 | 0001466593-25-000023 | Feb 13, 2025 | Feb 11, 2025 |
| 4 | FORM 4 | 0001466593-25-000014 | Feb 13, 2025 | Feb 11, 2025 |
| 4 | FORM 4 | 0001466593-25-000015 | Feb 13, 2025 | Feb 11, 2025 |
| 4 | FORM 4 | 0001466593-25-000017 | Feb 13, 2025 | Feb 11, 2025 |
| 4 | FORM 4 | 0001466593-25-000019 | Feb 13, 2025 | Feb 11, 2025 |
| 4 | FORM 4 | 0001466593-25-000008 | Feb 7, 2025 | Feb 6, 2025 |
| 4 | FORM 4 | 0001466593-25-000002 | Feb 7, 2025 | Feb 6, 2025 |
| 4 | FORM 4 | 0001466593-25-000010 | Feb 7, 2025 | Feb 6, 2025 |
| 4 | FORM 4 | 0001466593-25-000006 | Feb 7, 2025 | Feb 6, 2025 |
| 4 | FORM 4 | 0001466593-25-000012 | Feb 7, 2025 | Feb 6, 2025 |
| 4 | FORM 4 | 0001466593-25-000004 | Feb 7, 2025 | Feb 6, 2025 |
| 8-K | 8-K | 0001466593-24-000149 | Dec 31, 2024 | Dec 30, 2024 |
| 8-K | 8-K | 0001466593-24-000147 | Dec 16, 2024 | Dec 11, 2024 |
| 10-Q | 10-Q | 0001466593-24-000140 | Nov 7, 2024 | Sep 30, 2024 |
| 8-K | 8-K | 0001466593-24-000136 | Nov 5, 2024 | Nov 4, 2024 |
| SC 13D/A | SC 13D/A | 0001104659-24-105851 | Oct 3, 2024 | — |
| 4 | FORM 4 | 0001466593-24-000131 | Aug 14, 2024 | Aug 13, 2024 |
| 144 | — | 0002002698-24-000184 | Aug 13, 2024 | — |
| 10-Q | 10-Q | 0001466593-24-000129 | Aug 7, 2024 | Jun 30, 2024 |
| 8-K | 8-K | 0001466593-24-000125 | Aug 6, 2024 | Aug 5, 2024 |
| 8-K | 8-K | 0001466593-24-000121 | Jun 5, 2024 | May 30, 2024 |
| 4 | FORM 4 | 0001466593-24-000119 | May 28, 2024 | May 24, 2024 |
| 144 | — | 0001971857-24-000297 | May 24, 2024 | — |
| SD | SD | 0001466593-24-000116 | May 24, 2024 | — |
| 10-Q | 10-Q | 0001466593-24-000113 | May 8, 2024 | Mar 31, 2024 |
| 8-K | 8-K | 0001466593-24-000109 | May 7, 2024 | May 6, 2024 |
| S-3ASR | S-3ASR | 0001466593-24-000103 | May 3, 2024 | — |
| S-3ASR | S-3ASR | 0001466593-24-000101 | May 3, 2024 | — |
| 8-K | 8-K | 0001466593-24-000085 | Apr 10, 2024 | Apr 8, 2024 |
| 4 | FORM 4 | 0001466593-24-000083 | Apr 9, 2024 | Apr 8, 2024 |
| 4 | FORM 4 | 0001466593-24-000067 | Apr 9, 2024 | Apr 8, 2024 |
| 4 | FORM 4 | 0001466593-24-000079 | Apr 9, 2024 | Apr 8, 2024 |
| 4 | FORM 4 | 0001466593-24-000081 | Apr 9, 2024 | Apr 8, 2024 |
| 4 | FORM 4 | 0001466593-24-000069 | Apr 9, 2024 | Apr 8, 2024 |
| 4 | FORM 4 | 0001466593-24-000071 | Apr 9, 2024 | Apr 8, 2024 |
| 4 | FORM 4 | 0001466593-24-000073 | Apr 9, 2024 | Apr 8, 2024 |
| 4 | FORM 4 | 0001466593-24-000075 | Apr 9, 2024 | Apr 8, 2024 |
| 4 | FORM 4 | 0001466593-24-000077 | Apr 9, 2024 | Apr 8, 2024 |
| 8-K | 8-K | 0001466593-24-000064 | Apr 5, 2024 | Apr 2, 2024 |
| 8-K | 8-K | 0001466593-24-000061 | Apr 2, 2024 | Mar 28, 2024 |
| 4 | FORM 4 | 0001466593-24-000059 | Mar 13, 2024 | Mar 12, 2024 |
| ARS | ARS | 0001466593-24-000053 | Feb 28, 2024 | Dec 31, 2023 |
| DEF 14A | DEF 14A | 0001466593-24-000055 | Feb 28, 2024 | Dec 31, 2023 |
| DEFA14A | DEFA14A | 0001466593-24-000057 | Feb 28, 2024 | — |
| 10-K | 10-K | 0001466593-24-000039 | Feb 14, 2024 | Dec 31, 2023 |
| 8-K | 8-K | 0001466593-24-000034 | Feb 13, 2024 | Feb 12, 2024 |
| SC 13G/A | SCHEDULE 13G/A | 0001104659-24-020098 | Feb 13, 2024 | — |
| 4 | FORM 4 | 0001466593-24-000018 | Feb 8, 2024 | Feb 6, 2024 |
| 4 | FORM 4 | 0001466593-24-000020 | Feb 8, 2024 | Feb 6, 2024 |
| 4 | FORM 4 | 0001466593-24-000022 | Feb 8, 2024 | Feb 6, 2024 |