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BLACK HILLS CORP /SD/ - Investor Relations & Filings

Listed
Ticker · BKH ISIN · US0921131092 LEI · 3MGELCRSTNSAMJ962671 US Electricity, gas, steam and air conditioning supply
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Filings indexed 1,843 across all filing types
Latest filing 2026-06-18 Annual Report
Country US United States of America
Listing US BKH · 8 venues

Key figures FY2025

Period ended 2025-12-31 · USD
Headline annual figures for BLACK HILLS CORP /SD/, fiscal year 2025, reported in USD, with the source filing for each figure.
Total Revenues USD 2.31B per the Annual Report filed 2026-02-11
Net Income USD 299.80M per the Annual Report filed 2026-02-11
Total Assets USD 10.87B per the Annual Report filed 2026-02-11
Total Equity USD 3.91B per the Annual Report filed 2026-02-11
Cash from Ops USD 673.40M per the Annual Report filed 2026-02-11

As reported by the issuer in the filings linked above. Figures are normalized for comparability; consult the source filing for the authoritative statement.

About BLACK HILLS CORP /SD/

https://ir.blackhillscorp.com/

Black Hills Corp. is a growth-oriented, vertically integrated energy company that operates as a regulated utility. The company's core business involves the generation, transmission, and distribution of electricity, as well as the transmission and distribution of natural gas. It serves approximately 1.35 million residential and commercial customers across a multi-state service area that includes Arkansas, Colorado, Iowa, Kansas, Montana, Nebraska, South Dakota, and Wyoming. The company's stated mission is to 'improve life with energy.' In a significant strategic development, Black Hills Corp. has announced an all-stock merger agreement with NorthWestern Energy to form an expanded regional utility company.

Recent filings

Filing Released Lang Actions
11-K
Annual Report Classification · 100% confidence The document text is a Form 11-K filing, which is an Annual Report pursuant to Section 15(d) of the Securities Exchange Act of 1934, specifically for the Black Hills Corporation 401(k) Retirement Savings Plan. The document includes audited financial statements, notes, and a report of independent auditors (Deloitte & Touche LLP) dated June 18, 2026 for the fiscal year ended December 31, 2025. The content includes detailed financial statements and plan information rather than just a notification or announcement. It is a statutory annual report for an employee benefit plan, which fits within the definition of an Annual Report (10-K) category, acknowledging that SEC Form 11-K is the annual report for employee benefit plans and considered equivalent to annual filings. FY 2025
2026-06-18 English
424B5
Share Issue/Capital Change Classification · 95% confidence The document is a Form 424B5 prospectus supplement and accompanying prospectus for an at-the-market offering of up to $183.4 million of common stock under a shelf registration. It details the terms of the share issuance, sales agents, forward sale agreements, use of proceeds, legal matters, and risk factors. This is a primary securities issuance – a new share issue – rather than just an earnings release or management discussion. Under our taxonomy, this most closely corresponds to “Share Issue/Capital Change” (SHA).
2026-05-19 English
S-3ASR
Capital/Financing Update Classification · 90% confidence The document is a Form S-3 shelf registration statement and prospectus filed with the SEC to register and offer various debt and equity securities (senior debt, subordinated debt, preferred stock, common stock, warrants, etc.). This is clearly a capital markets/financing transaction filing rather than a full annual or interim report, call transcript, proxy, etc. It updates investors on the company’s planned fundraising activities and securities offering terms. Therefore, it is classified as a Capital/Financing Update (CAP).
2026-05-19 English
8-K
M&A Activity Classification · 92% confidence The document is a Current Report on Form 8-K (SEC Form 8-K), Item 8.01 “Other Events,” detailing a pending all-stock merger transaction (Agreement and Plan of Merger) between Black Hills Corporation and NorthWestern Energy Group, Inc., including pro forma financial statements and historical financials filed as exhibits. This is an announcement of an M&A transaction. It is not a full annual or interim report but a merger-related disclosure. Therefore, it fits the category “M&A Activity” (Code: TAR).
2026-05-15 English
10-Q - BLACK HILLS CORP /SD/ (0001130464) (Filer)
Interim / Quarterly Report Q1 2026
2026-05-07 English
Q1 2026
Call Transcript Classification · 100% confidence
2026-05-07 English

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