NorthWestern Energy Group, Inc. SEC filings NWE
NorthWestern Energy Group, Inc. has 318 filings in SEC EDGAR's recent list, going back to Oct 2, 2023. Its latest annual report, Form 10-K, was filed on Feb 12, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-K | Annual report | Feb 12, 2026 | Dec 31, 2025 |
| ARS | Annual report to shareholders | Mar 12, 2025 | Dec 31, 2024 |
| 10-K | Annual report | Feb 13, 2025 | Dec 31, 2024 |
| ARS | Annual report to shareholders | Mar 6, 2024 | Dec 31, 2023 |
| 10-K | Annual report | Feb 15, 2024 | Dec 31, 2023 |
Showing 5 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Electric & Other Services Combined (SIC 4931)
- Listed as
- NWE (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Sioux Falls, SD
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1993004
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.