1,024 material Form 8-K filings that 799 companies we cover made with the SEC in August 2025, each read and summarized by AI: what happened, the key figures, whether it reads positive or negative for shareholders, and how big a deal it is (impact 1-5). All of them were written later, when past filings were added: a selection, not every 8-K of the month (see the note below).
On August 18, 2025, NorthWestern Energy entered a merger agreement with Black Hills Corp. under which each NorthWestern share would convert into 0.98 Black Hills shares. The companies say the exchange ratio implies an approximately 4% premium based on volume weighted average prices since March 2025, and the combined company would have a $15.4 billion enterprise value. Completion requires shareholder and regulatory approvals and is expected in 12 to 15 months, so NorthWestern shareholders face approval and closing risk before the terms take effect.
Each NorthWestern common share converts into 0.98 Black Hills shares; Black Hills holders would own about 56% and NorthWestern holders about 44% of the combined company.
The exchange ratio implies an approximately 4% premium based on volume weighted average prices since March 2025, per the companies' press release.
Either party owes a $100 million termination fee in certain circumstances; the agreement can be terminated if closing has not occurred by August 18, 2026, extendable up to February 18, 2027.
Brian B. Bird, NorthWestern's CEO, is expected to become CEO of the combined company; Linn Evans, Black Hills' CEO, will retire at closing.
On August 18, 2025, Nexstar and TEGNA signed a merger agreement under which TEGNA stockholders would receive $22.00 per share in cash, a transaction the companies value at $6.2 billion including TEGNA's net debt and estimated fees. Completion requires TEGNA stockholder approval and regulatory approvals, including from the FCC, and is expected by the second half of 2026. For Nexstar shareholders, the deal would raise leverage: Nexstar expects its net leverage ratio to be about 4x at closing, compared with 3.19x as of June 30, 2025, with de-leveraging to current levels planned for 2028.
Cash consideration of $22.00 per TEGNA share, a 31% premium to TEGNA's 30-day average stock price ending August 8, 2025
Termination fees: TEGNA would pay Nexstar $120 million in certain cases; Nexstar would pay TEGNA $125 million if required regulatory clearances are not obtained before the Outside Date of August 18, 2026
Nexstar expects annual net synergies of approximately $300 million and net leverage of about 4x at closing versus 3.19x at June 30, 2025
Committed debt financing from BofA Securities, J.P. Morgan and Goldman Sachs; closing expected by the second half of 2026
Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.
Briefs marked “Written later” were written in November 2026 for filings that were by then more than three weeks old, so months before mid-October 2026 hold a selection: every material 8-K of the past year for the 100 largest companies we cover and the last 15 important 8-Ks of every other one. Briefs the number check holds back are not shown or counted. Also: the last 45 days, briefs by company, A–Z and the live SEC filings wire.