---
schema_version: "secwatch.filing_event.v1"
accession: "0001993004-24-000028"
form_type: "8-K"
ticker: "NWE"
cik: "0001993004"
company_name: "NorthWestern Energy Group, Inc."
filed_at: "2024-04-03T23:59:59+00:00"
generated_at: "2026-06-04T03:00:28.283388+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# NorthWestern subsidiaries issue $215M in first mortgage bonds at rates 5.55%-5.75%

## Summary
- NW Corp issued $175M Montana First Mortgage Bonds due March 28, 2031 at 5.56%.
- NWE Public Service issued $40M South Dakota bonds: $33M due 2029 at 5.55% and $7M due 2034 at 5.75%.
- Both issuances are exempt from SEC registration and rank equally with existing first mortgage lien debt.
- Bonds are redeemable at any time at a make-whole price; customary events of default apply.
- Supplemental indentures with The Bank of New York Mellon govern the bonds; filed as exhibits.

## SEC filing metadata
- accession: 0001993004-24-000028
- form_type: 8-K
- ticker: NWE
- cik: 0001993004
- company_name: NorthWestern Energy Group, Inc.
- filed_at: 2024-04-03T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1993004/000199300424000028/0001993004-24-000028-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1993004/000199300424000028/nwe-20240328.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001993004-24-000028
- JSON: https://secwatch.observer/filing/0001993004-24-000028.json
- Plain text: https://secwatch.observer/filing/0001993004-24-000028.txt

## Key facts
- Debt Financings
  NorthWestern Energy Group, Inc. incurred mortgage of $175 million with the noteholders at 5.56% maturing March 28, 2031.
  - Instrument: mortgage
  - Principal: $175 million
  - Counterparty: the noteholders
  - Rate: 5.56%
  - Maturity: March 28, 2031
  - Event: incurrence
  source text: The MT Bonds were drawn and issued in one series as follows: Issue Date Maturity Date Principal Amount Interest Rate March 28, 2024 March 28, 2031 $175 million 5.56%
  evidence_url: https://www.sec.gov/Archives/edgar/data/1993004/000199300424000028/0001993004-24-000028-index.htm
- Debt Financings
  NorthWestern Energy Group, Inc. incurred mortgage of $33 million with the noteholders at 5.55% maturing March 28, 2029.
  - Instrument: mortgage
  - Principal: $33 million
  - Counterparty: the noteholders
  - Rate: 5.55%
  - Maturity: March 28, 2029
  - Event: incurrence
  source text: Issue Date Maturity Date Principal Amount Interest Rate March 28, 2024 March 28, 2029 $33 million 5.55% March 28, 2024 March 28, 2034 $7 million 5.75%
  evidence_url: https://www.sec.gov/Archives/edgar/data/1993004/000199300424000028/0001993004-24-000028-index.htm
- Debt Financings
  NorthWestern Energy Group, Inc. incurred mortgage of $7 million with the noteholders at 5.75% maturing March 28, 2034.
  - Instrument: mortgage
  - Principal: $7 million
  - Counterparty: the noteholders
  - Rate: 5.75%
  - Maturity: March 28, 2034
  - Event: incurrence
  source text: Issue Date Maturity Date Principal Amount Interest Rate March 28, 2024 March 28, 2029 $33 million 5.55% March 28, 2024 March 28, 2034 $7 million 5.75%
  evidence_url: https://www.sec.gov/Archives/edgar/data/1993004/000199300424000028/0001993004-24-000028-index.htm

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