{"schema_version":"secwatch.filing_event.v1","accession":"0001733998-23-000003","form_type":"8-K","ticker":"NWN","cik":"0001733998","company_name":"Northwest Natural Holding Co","filed_at":"2023-01-06T23:59:59+00:00","discovered_at":"2026-05-14T18:03:46.349556+00:00","generated_at":"2026-06-20T18:53:06.106256+00:00","sec_items":["2.03","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.45,"calibrated_materiality_score":0.45,"confidence":"high","headline":"Northwest Natural Gas Co. issues $100M of 5.43% First Mortgage Bonds due 2053","bullets":["Issued $100M aggregate principal of First Mortgage Bonds, 5.43% Series due January 6, 2053.","Interest payable semi-annually on Jan 6 and Jul 6, commencing Jul 6, 2023.","Bonds redeemable prior to maturity at NW Natural's option with make-whole premium before Jul 6, 2052.","Issued to institutional investors under a December 13, 2022 Bond Purchase Agreement."],"urls":{"canonical":"https://secwatch.observer/filing/0001733998-23-000003","json":"https://secwatch.observer/filing/0001733998-23-000003.json","markdown":"https://secwatch.observer/filing/0001733998-23-000003.md","text":"https://secwatch.observer/filing/0001733998-23-000003.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1733998/000173399823000003/0001733998-23-000003-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/73020/000173399823000003/nwn-20230106.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-20T18:53:06.106256+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":[{"claim_id":"101dfd8938cce10b997635e57db60e2a32736fdb","claim":"Northwest Natural Holding Co incurred senior notes of $100,000,000 at 5.43% per annum maturing January 6, 2053.","evidence_excerpt":"On January 6, 2023, Northwest Natural Gas Company (NW Natural), a wholly owned subsidiary of Northwest Natural Holding Company, issued and sold $100,000,000 aggregate principal amount of its First Mortgage Bonds, 5.43% Series due January 6, 2053 (the Bonds), to certain institutional investors","evidence_source":"SEC 8-K Item 2.03/2.04","evidence_url":"https://www.sec.gov/Archives/edgar/data/1733998/000173399823000003/0001733998-23-000003-index.htm","confidence":0.9,"family_label":"Debt Financings","details":[{"label":"Instrument","value":"senior notes"},{"label":"Principal","value":"$100,000,000"},{"label":"Rate","value":"5.43% per annum"},{"label":"Maturity","value":"January 6, 2053"},{"label":"Event","value":"incurrence"}],"fact_type":"debt_financing"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}