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-Q | Quarterly report | Nov 5, 2026 | Sep 30, 2026 |
| 10-Q | Quarterly report | Jul 30, 2026 | Jun 30, 2026 |
| 10-Q | Quarterly report | Apr 30, 2026 | Mar 31, 2026 |
| 10-Q | Quarterly report | Oct 30, 2025 | Sep 30, 2025 |
| 10-Q | Quarterly report | Jul 31, 2025 | Jun 30, 2025 |
| 10-Q | Quarterly report | Apr 30, 2025 | Mar 31, 2025 |
| 10-Q | Quarterly report | Oct 29, 2024 | Sep 30, 2024 |
| 10-Q | Quarterly report | Jul 31, 2024 | Jun 30, 2024 |
| 10-Q | Quarterly report | Apr 26, 2024 | Mar 31, 2024 |
| 10-Q | Quarterly report | Oct 27, 2023 | Sep 30, 2023 |
Showing 10 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.