Form Type: 8-K Current Report filed by Black Hills Corporation on August 17, 2026 Items Reported: Item 8.01 (Other Events) and Item 9.01 (Financial Statements and Exhibits) Company Information: Black Hills Corporation, a South Dakota-incorporated electric services company (SIC 4911), headquartered at 7001 Mount Rushmore Road, Rapid City, SD 57702 Filing Date: August 17, 2026 (same date as the…

Our analysis rates this filing BEARISH. Black Hills faces a HIGH concern level (7.2/10) driven by a transformational merger announcement that introduces material execution and regulatory risks. The August 2025 Merger Agreement with NorthWestern Energy Group is a $4.7B+ all-stock transaction…

Concern level: HIGH (7.2/10). Key factors: Merger Completion Risk rated severity 9/10 - Multiple regulatory approval dependencies (state commissions + FERC) with explicit disclosure that approvals 'may not be obtained on the expected timeline, or at all'; Merger-Related Business Disruption rated severity 8/10 - Management distraction, key personnel retention challenges, and operational continuity…

Notable risk changes: MAJOR: Black Hills entered into binding Merger Agreement with NorthWestern Energy Group (all-stock transaction) on August 18, 2025. This is a transformational M&A event introducing significant regulatory approval risk, synergy realization risk, and business disruption risk. Multiple state regulatory commissions and FERC approval required - approvals 'may not be obtained on the expected…

The model predicts BKH will outperform the S&P 500 by about 0.0% over 30 days (model confidence 50%). This is model analysis for research, not investment advice.