---
schema_version: "secwatch.filing_event.v1"
accession: "0001733998-25-000111"
form_type: "8-K"
ticker: "NWN"
cik: "0001733998"
company_name: "Northwest Natural Holding Co"
filed_at: "2025-06-24T23:59:59+00:00"
generated_at: "2026-05-18T22:46:34.849885+00:00"
event_type: "regulatory"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# NW Natural files stipulation for $21.3M rate hike vs originally requested $59.4M

## Summary
- Stipulation reduces requested annual revenue increase from $59.4M to $21.3M, including $4.8M for updated depreciation.
- Capital structure: 50% common equity, 50% long-term debt; ROE of 9.50%, overall cost of capital 7.12%.
- Expected rate base of $2.234B as of Nov 1, 2025, up $144M from last rate case.
- All parties except one support stipulation; OPUC approval required, rates targeted for Oct 31, 2025.

## SEC filing metadata
- accession: 0001733998-25-000111
- form_type: 8-K
- ticker: NWN
- cik: 0001733998
- company_name: Northwest Natural Holding Co
- filed_at: 2025-06-24T23:59:59+00:00
- event_type: regulatory
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1733998/000173399825000111/0001733998-25-000111-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/73020/000173399825000111/nwn-20250623.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001733998-25-000111
- JSON: https://secwatch.observer/filing/0001733998-25-000111.json
- Plain text: https://secwatch.observer/filing/0001733998-25-000111.txt

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