---
schema_version: "secwatch.filing_event.v1"
accession: "0001993004-25-000196"
form_type: "8-K"
ticker: "NWE"
cik: "0001993004"
company_name: "NorthWestern Energy Group, Inc."
filed_at: "2025-11-13T23:59:59+00:00"
generated_at: "2026-05-16T20:39:02.096648+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# NorthWestern Energy subsidiary issues additional $100M in 5.073% First Mortgage Bonds due 2030

## Summary
- Issued $100M additional Montana First Mortgage Bonds at 5.073% interest, maturing March 21, 2030.
- Aggregate outstanding of 2030 Notes now $500 million; bonds rank equally with existing first-mortgage debt.
- Proceeds to fund capex, working capital (including revolver paydown), and general corporate purposes.
- Bonds sold via Rule 144A/Reg S; interest payable semi-annually starting March 21, 2026.

## SEC filing metadata
- accession: 0001993004-25-000196
- form_type: 8-K
- ticker: NWE
- cik: 0001993004
- company_name: NorthWestern Energy Group, Inc.
- filed_at: 2025-11-13T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1993004/000199300425000196/0001993004-25-000196-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1993004/000199300425000196/nwe-20251107.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001993004-25-000196
- JSON: https://secwatch.observer/filing/0001993004-25-000196.json
- Plain text: https://secwatch.observer/filing/0001993004-25-000196.txt

## Key facts
- Debt Financings
  NorthWestern Energy Group, Inc. incurred senior notes of $100 million with The Bank of New York Mellon and Dimple Gandhi, as trustees at 5.073% per year maturing March 21, 2030.
  - Instrument: senior notes
  - Principal: $100 million
  - Counterparty: The Bank of New York Mellon and Dimple Gandhi, as trustees
  - Rate: 5.073% per year
  - Maturity: March 21, 2030
  - Event: incurrence
  source text: On November 7, 2025, NorthWestern Corporation (" NW Corp "), a wholly owned subsidiary of NorthWestern Energy Group, Inc., d/b/a NorthWestern Energy (Nasdaq: NWE) (“ NWE Group ”), reopened its March 2025 issuance of NW Corp's Montana First Mortgage Bonds (“ 2030 Notes ”) and issued and sold an additional $100 million principal amount of such bonds (the " Additional MT Bonds ").
  evidence_url: https://www.sec.gov/Archives/edgar/data/1993004/000199300425000196/0001993004-25-000196-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.