---
schema_version: "secwatch.filing_event.v1"
accession: "0001733998-25-000078"
form_type: "8-K"
ticker: "NWN"
cik: "0001733998"
company_name: "Northwest Natural Holding Co"
filed_at: "2025-03-18T23:59:59+00:00"
generated_at: "2026-05-24T14:03:14.491159+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# NWN issues $325M junior subordinated debentures due 2055 at 7.0% initial coupon

## Summary
- Issued $325M principal of junior subordinated debentures due September 15, 2055.
- Initial rate 7.0% through September 15, 2035; thereafter Five-Year Treasury + 2.701%.
- Company may defer interest payments for up to ten consecutive years.
- Deferral of interest triggers restrictions on common stock dividends.
- Sale closed March 18, 2025; underwritten public offering.

## SEC filing metadata
- accession: 0001733998-25-000078
- form_type: 8-K
- ticker: NWN
- cik: 0001733998
- company_name: Northwest Natural Holding Co
- filed_at: 2025-03-18T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1733998/000173399825000078/0001733998-25-000078-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1733998/000173399825000078/nwn-20250318.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001733998-25-000078
- JSON: https://secwatch.observer/filing/0001733998-25-000078.json
- Plain text: https://secwatch.observer/filing/0001733998-25-000078.txt

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