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Black Hills Corp. SEC filings

In the twelve months since 9 October 2025 Black Hills Corp. filed 19 documents with the SEC of the kinds listed here: 10 current reports (8-K), about 4 results of operations; 3 other events; 2 regulation fd disclosure; 2 shareholder vote; 3 quarterly reports (10-Q), 1 employee plan annual report (11-K), 1 shelf registration (S-3ASR), 1 annual report to shareholders (ARS), 1 proxy statement (DEF 14A), 1 annual report (10-K). The latest, filed 6 October 2026: 8-K, regulation fd disclosure.

FiledFormWhat it was aboutPeriod or event dateFiling
6 October 20268-KRegulation FD disclosure6 October 2026EDGAR
17 August 20268-KOther events17 August 2026EDGAR
6 August 202610-Qquarterly report30 June 2026EDGAR
5 August 20268-KResults of operations5 August 2026EDGAR
18 June 202611-Kemployee plan annual report31 December 2025EDGAR
19 May 2026S-3ASRshelf registrationEDGAR
15 May 20268-KOther events15 May 2026EDGAR
7 May 202610-Qquarterly report31 March 2026EDGAR
6 May 20268-KResults of operations6 May 2026EDGAR
1 May 20268-KShareholder vote29 April 2026EDGAR
2 April 20268-KShareholder vote, Regulation FD disclosure2 April 2026EDGAR
18 March 2026ARSannual report to shareholders31 December 2025EDGAR
18 March 2026DEF 14Aproxy statement29 April 2026EDGAR
19 February 20268-KOther events19 February 2026EDGAR
11 February 202610-Kannual report31 December 2025EDGAR
4 February 20268-KResults of operations4 February 2026EDGAR
30 January 2026S-4merger registrationEDGAR
6 November 202510-Qquarterly report30 September 2025EDGAR
5 November 20258-KResults of operations5 November 2025EDGAR
An 8-K is what a company files within four business days of a material event; the SEC numbers the events, and the words here are the SEC's own headings, shortened.
Read moreForm 4, Form 144, 13F and Schedule 13D and 13G have their own pages. Prospectus supplements and correspondence are not listed.

Source

The company's filing index on EDGAR, read from the SEC's submissions feed.

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