{"schema_version":"secwatch.filing_event.v1","accession":"0001733998-25-000144","form_type":"8-K","ticker":"NWN","cik":"0001733998","company_name":"Northwest Natural Holding Co","filed_at":"2025-09-02T23:59:59+00:00","discovered_at":"2026-05-14T18:02:44.834136+00:00","generated_at":"2026-05-17T08:54:20.719859+00:00","sec_items":["8.01"],"event_type":"regulatory","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"NW Natural files multi-year Washington rate increase request totaling $42.5M over three years","bullets":["Filed general rate increase with WUTC on Aug 29, 2025; covers ~98,000 customers (12% of total).","Year 1 revenue increase request: $25.6M (Aug 2026); Year 2: $8.6M; Year 3: $8.3M.","Assumes 51% common equity, ROE of 10.1% (Y1) to 10.2% (Y3), and rate base of $341.8M-$422.7M.","New rates expected Aug 1, 2026 after up to 11-month regulatory review."],"urls":{"canonical":"https://secwatch.observer/filing/0001733998-25-000144","json":"https://secwatch.observer/filing/0001733998-25-000144.json","markdown":"https://secwatch.observer/filing/0001733998-25-000144.md","text":"https://secwatch.observer/filing/0001733998-25-000144.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1733998/000173399825000144/0001733998-25-000144-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/73020/000173399825000144/nwn-20250829.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T08:54:20.719859+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}