Welcome to our dedicated page for BLACK HILLS /SD/ SEC filings (Ticker: BKH), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Our SEC filing database is enhanced with expert analysis from Rhea-AI, providing insights into the potential impact of each filing on BLACK HILLS /SD/'s stock performance. Each filing includes a concise AI-generated summary, sentiment and impact scores, and end-of-day stock performance data showing the actual market reaction. Navigate easily through different filing types including 10-K annual reports, 10-Q quarterly reports, 8-K current reports, proxy statements (DEF 14A), and Form 4 insider trading disclosures.
Designed for fundamental investors and regulatory compliance professionals, our page simplifies access to critical SEC filings. By combining real-time SEC filing updates, Rhea-AI's analytical insights, and historical stock performance data, we provide comprehensive visibility into BLACK HILLS /SD/'s regulatory disclosures and financial reporting.
Black Hills Corporation and NorthWestern Energy Group plan an all-stock merger in which each NorthWestern share will convert into 0.98 share of Black Hills common stock. NorthWestern will become a wholly owned subsidiary, and the combined company will adopt a new name before or at closing.
To complete the deal, Black Hills shareholders must approve issuing new shares, tripling authorized stock to 300 million, increasing authorized indebtedness to $20 billion, and a corporate name change. NorthWestern shareholders must adopt the Merger Agreement. Both special meetings are virtual on April 2, 2026, and there are no appraisal rights.
Black Hills Corporation furnished an update on its recent performance by announcing that it issued a press release covering financial results for the fourth quarter of 2025. The company also prepared an investor presentation to support these results.
The press release dated Feb. 4, 2026 is included as Exhibit 99.1, and a related presentation dated Feb. 5, 2026 is included as Exhibit 99.2. This information is furnished under Item 2.02 as results of operations and financial condition and is not deemed filed for liability purposes under the Securities Exchange Act.
Black Hills Corporation has filed an S-4 for an all-stock merger with NorthWestern Energy Group, creating a combined regulated utility to be renamed later. A Black Hills subsidiary will merge into NorthWestern, which will become a wholly owned subsidiary of Black Hills.
At closing, each share of NorthWestern common stock will be converted into the right to receive 0.98 share of Black Hills common stock. Both companies will hold virtual special shareholder meetings on April 2, 2026, where investors will vote on merger-related proposals, including Black Hills share authorization, name change and indebtedness limit increases, and NorthWestern’s merger approval.
The boards of both companies unanimously recommend voting in favor of their respective merger proposals. The deal is intended to qualify as a tax-free reorganization under Section 368(a) of the Internal Revenue Code and will be accounted for as an acquisition, with NorthWestern’s assets and liabilities recorded at fair value on Black Hills’ books.
Black Hills Corp. (BKH) disclosed an insider transaction on Form 4. The company’s SVP & CFO reported a sale of 14,500 shares of common stock at $70.70 on 11/10/2025 (transaction code S). Following the sale, the reporting person beneficially owned 34,620.509 shares directly and 4.459 shares indirectly through a 401(k). The filing indicates it was submitted by one reporting person.
Black Hills Corp (BKH) reported an insider equity award. The company’s Chief Legal Officer acquired 4,621 shares of common stock on 11/07/2025 through a restricted stock grant under the company’s Incentive Compensation Plan at a reported price of $0.
Following this grant, the officer beneficially owns 4,621 shares, held directly. This filing reflects an equity-based compensation award rather than an open‑market purchase or sale.
Black Hills Corporation reported Q3 results with revenue of $430.2 million, up from $401.6 million, and net income available to common stock of $24.9 million versus $24.4 million a year ago. Operating income was $78.7 million. Diluted EPS was $0.34 compared with $0.35. For the first nine months, revenue reached $1.674 billion and EPS was $2.58.
Regulatory outcomes are adding recurring revenue: Colorado Electric’s final CPUC decision lifts new annual revenue to approximately $17.5 million effective March 22, 2025; Kansas Gas settled for $10.8 million effective August 1, 2025; Iowa Gas’ black‑box settlement provides $15.0 million effective January 1, 2025. Nebraska Gas reached a settlement expected to generate $23.9 million annually, subject to NPSC approval, with rates targeted for January 1, 2026. Operating cash flow was $505.3 million for the nine months, supporting $550.2 million of capital additions. Common shares outstanding were 75,473,390 as of November 4, 2025.
Black Hills Corporation furnished an 8-K announcing it issued a press release with financial results for the third quarter of 2025. The materials are provided under Item 2.02.
The company attached a press release as Exhibit 99.1 and an investor presentation as Exhibit 99.2. This information is furnished and not deemed “filed” under Section 18 of the Exchange Act.
Black Hills Corp (BKH) disclosed an initial beneficial ownership statement on Form 3 for its Chief Legal Officer.
The filing, effective 10/13/2025, reports 0 shares of common stock beneficially owned and indicates the form was filed by one reporting person. No derivative securities were reported.
Black Hills Corporation issued and sold $450 million of 4.550% Notes due 2031 on October 2, 2025. The company expects to use net proceeds, after offering costs, to repay, redeem or otherwise retire $300 million aggregate principal of its 3.950% notes due January 15, 2026, at or before maturity, with any remaining proceeds available for general corporate purposes including capital expenditures, acquisitions, investments and other debt repayment or refinancing. The Notes were issued under the company’s indenture as supplemented and are unsecured senior obligations that rank equally with existing and future unsecured unsubordinated indebtedness and senior to subordinated debt. Interest on the Notes is 4.550% per annum, payable semi-annually on January 31 and July 31, beginning January 31, 2026, and the stated maturity is January 31, 2031.
Black Hills Corporation announced an Underwriting Agreement to issue $450 million of 4.550% Notes due 2031, with aggregate gross proceeds of approximately $447.0 million after adjustments. The company and the underwriters have agreed to the sale, and issuance and settlement are scheduled for October 2, 2025, subject to customary closing conditions. The Underwriting Agreement is filed as Exhibit 1.1 and incorporated by reference into the company’s registration statement and prospectus materials.