Company facts
- Industry
- Electric Services
- Headquarters
- Rapid City, South Dakota
- Most recent report
- 10-Q, filed Nov 5, 2026
- Incorporated
- South Dakota
- Filings on record
- 1,002+ filings
- On EDGAR
- CIK 1130464
- Fiscal year ends
- December
- Filer status
- Large accelerated filer
Financials 8 of 42
News 8 of 106
Prospectuses and Registrations 8 of 44
- 424B5 Prospectus supplement for an offering May 19, 2026
- S-3ASR Automatic shelf registration May 19, 2026
- 424B3 Prospectus supplement for an offering Feb 6, 2026
- S-4 Registration statement for a merger or exchange Jan 30, 2026
- 424B2 Prospectus supplement for an offering Sep 26, 2025
- FWP Free writing prospectus Sep 25, 2025
- 424B5 Prospectus supplement for an offering Sep 25, 2025
- 424B5 Prospectus supplement for an offering May 8, 2025
Proxies 8 of 11
- DEF 14A Proxy statement for a shareholder vote Mar 18, 2026
- DEF 14A Proxy statement for a shareholder vote Mar 14, 2025
- DEF 14A Proxy statement for a shareholder vote Mar 15, 2024
- DEF 14A Proxy statement for a shareholder vote Mar 15, 2023
- DEF 14A Proxy statement for a shareholder vote Mar 17, 2022
- DEF 14A Proxy statement for a shareholder vote Mar 18, 2021
- DEFA14A Extra proxy material Apr 15, 2020
- DEF 14A Proxy statement for a shareholder vote Mar 13, 2020
Ownership 8 of 756
- SCHEDULE 13G Large holder reported a passive stake Aug 7, 2026
- 4 Insider reported a trade May 28, 2026
- SCHEDULE 13G Large holder reported a passive stake May 12, 2026
- 4 Insider reported a trade May 4, 2026
- 4 Insider reported a trade May 4, 2026
- 4 Insider reported a trade May 4, 2026
- 4 Insider reported a trade May 4, 2026
- 4 Insider reported a trade May 4, 2026
Other 8 of 43
Everything here comes from Black Hills Corp's own filings on SEC EDGAR. The filing list is rechecked every hour.