BLACK HILLS CORP /SD/ — All Filings
1,003 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-K405
10-K405/A
10-Q
10-Q/A
11-K
144
25-NSE
3
305B2
35-CERT
4
4/A
424B2
424B3
424B4
424B5
424B7
425
5
8-A12B
8-K
8-K/A
ARS
CERTNYS
CORRESP
DEF 14A
DEFA14A
DEFR14A
DRS
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S-1
S-1/A
S-3
S-3/A
S-3ASR
S-4
S-4/A
S-8
S-8 POS
SC 13G
SC 13G/A
SCHEDULE 13G/A
SE
U-1
U-1/A
U-3A-2
U-6B-2
U-9C-3
U5A
U5A/A
U5B
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 425 | 425 | 0001104659-25-080307 | Aug 19, 2025 | — |
| 425 | 425 | 0001104659-25-080314 | Aug 19, 2025 | — |
| 425 | 425 | 0001104659-25-080317 | Aug 19, 2025 | — |
| 425 | 425 | 0001104659-25-080312 | Aug 19, 2025 | — |
| 425 | 425 | 0001104659-25-080309 | Aug 19, 2025 | — |
| 425 | 425 | 0001104659-25-080305 | Aug 19, 2025 | — |
| 425 | 425 | 0001104659-25-080303 | Aug 19, 2025 | — |
| 425 | 425 | 0001104659-25-080315 | Aug 19, 2025 | — |
| 425 | 425 | 0001104659-25-080308 | Aug 19, 2025 | — |
| 425 | 425 | 0001104659-25-080278 | Aug 19, 2025 | — |
| 425 | 425 | 0001104659-25-080306 | Aug 19, 2025 | — |
| 425 | 425 | 0001104659-25-080302 | Aug 19, 2025 | — |
| 425 | 425 | 0001104659-25-080311 | Aug 19, 2025 | — |
| 425 | 425 | 0001104659-25-080299 | Aug 19, 2025 | — |
| 10-Q | 10-Q | 0000950170-25-100667 | Jul 31, 2025 | Jun 30, 2025 |
| 8-K | 8-K | 0000950170-25-100354 | Jul 30, 2025 | — |
| 11-K | 11-K | 0000950170-25-088856 | Jun 23, 2025 | Dec 31, 2024 |
| 8-K | FORM 8-K | 0001104659-25-046204 | May 8, 2025 | — |
| 10-Q | 10-Q | 0000950170-25-066572 | May 8, 2025 | Mar 31, 2025 |
| 424B5 | 424B5 | 0001104659-25-046199 | May 8, 2025 | — |
| 8-K | 8-K | 0000950170-25-066115 | May 8, 2025 | May 7, 2025 |
| 4 | PRIMARY DOCUMENT | 0001593968-25-000573 | May 2, 2025 | May 1, 2025 |
| 4 | PRIMARY DOCUMENT | 0001593968-25-000574 | May 2, 2025 | May 1, 2025 |
| 4 | PRIMARY DOCUMENT | 0001593968-25-000575 | May 2, 2025 | May 1, 2025 |
| 4 | PRIMARY DOCUMENT | 0001593968-25-000576 | May 2, 2025 | May 1, 2025 |
| 4 | PRIMARY DOCUMENT | 0001593968-25-000578 | May 2, 2025 | May 1, 2025 |
| 4 | PRIMARY DOCUMENT | 0001593968-25-000579 | May 2, 2025 | May 1, 2025 |
| 4 | PRIMARY DOCUMENT | 0001593968-25-000580 | May 2, 2025 | May 1, 2025 |
| 4 | PRIMARY DOCUMENT | 0001593968-25-000581 | May 2, 2025 | May 1, 2025 |
| 4 | PRIMARY DOCUMENT | 0001593968-25-000582 | May 2, 2025 | May 1, 2025 |
| SCHEDULE 13G/A | — | 0002052113-25-001933 | Apr 30, 2025 | — |
| 3 | PRIMARY DOCUMENT | 0001593968-25-000540 | Apr 28, 2025 | Apr 23, 2025 |
| 3 | PRIMARY DOCUMENT | 0001593968-25-000539 | Apr 28, 2025 | Apr 23, 2025 |
| 8-K | 8-K | 0000950170-25-058826 | Apr 25, 2025 | Apr 23, 2025 |
| DEF 14A | DEF 14A | 0000950170-25-039148 | Mar 14, 2025 | Mar 12, 2025 |
| ARS | ARS | 0000950170-25-039149 | Mar 14, 2025 | Dec 31, 2024 |
| 4 | PRIMARY DOCUMENT | 0001593968-25-000241 | Feb 20, 2025 | Feb 18, 2025 |
| 5 | PRIMARY DOCUMENT | 0001593968-25-000238 | Feb 18, 2025 | Dec 31, 2024 |
| 4 | PRIMARY DOCUMENT | 0001593968-25-000230 | Feb 14, 2025 | Feb 12, 2025 |
| 4 | PRIMARY DOCUMENT | 0001593968-25-000232 | Feb 14, 2025 | Feb 12, 2025 |
| 5 | PRIMARY DOCUMENT | 0001593968-25-000219 | Feb 14, 2025 | Dec 31, 2024 |
| 5 | PRIMARY DOCUMENT | 0001593968-25-000217 | Feb 14, 2025 | Dec 31, 2024 |
| 5 | PRIMARY DOCUMENT | 0001593968-25-000218 | Feb 14, 2025 | Dec 31, 2024 |
| 5 | PRIMARY DOCUMENT | 0001593968-25-000220 | Feb 14, 2025 | Dec 31, 2024 |
| 5 | PRIMARY DOCUMENT | 0001593968-25-000221 | Feb 14, 2025 | Dec 31, 2024 |
| 5 | PRIMARY DOCUMENT | 0001593968-25-000222 | Feb 14, 2025 | Dec 31, 2024 |
| 5 | PRIMARY DOCUMENT | 0001593968-25-000223 | Feb 14, 2025 | Dec 31, 2024 |
| 5 | PRIMARY DOCUMENT | 0001593968-25-000224 | Feb 14, 2025 | Dec 31, 2024 |
| 4 | PRIMARY DOCUMENT | 0001593968-25-000228 | Feb 14, 2025 | Feb 12, 2025 |
| 4 | PRIMARY DOCUMENT | 0001593968-25-000229 | Feb 14, 2025 | Feb 12, 2025 |