---
schema_version: "secwatch.filing_event.v1"
accession: "0001993004-25-000096"
form_type: "8-K"
ticker: "NWE"
cik: "0001993004"
company_name: "NorthWestern Energy Group, Inc."
filed_at: "2025-05-07T23:59:59+00:00"
generated_at: "2026-05-22T09:24:41.962817+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 $100M in 5.49% first mortgage bonds due 2035

## Summary
- NWE Public Service issued $100M South Dakota First Mortgage Bonds at 5.49%, maturing May 1, 2035.
- Bonds rank equally with all current and future first mortgage lien debt.
- Issued under Twenty-second Supplemental Indenture with Bank of New York Mellon as trustee.
- Proceeds used for general corporate purposes; redemption at make-whole price prior to maturity.

## SEC filing metadata
- accession: 0001993004-25-000096
- form_type: 8-K
- ticker: NWE
- cik: 0001993004
- company_name: NorthWestern Energy Group, Inc.
- filed_at: 2025-05-07T23:59:59+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/1993004/000199300425000096/0001993004-25-000096-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1993004/000199300425000096/nwe-20250501.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001993004-25-000096
- JSON: https://secwatch.observer/filing/0001993004-25-000096.json
- Plain text: https://secwatch.observer/filing/0001993004-25-000096.txt

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