{"schema_version":"secwatch.filing_event.v1","accession":"0001733998-25-000191","form_type":"8-K","ticker":"NWN","cik":"0001733998","company_name":"Northwest Natural Holding Co","filed_at":"2025-12-16T23:59:59+00:00","discovered_at":"2026-05-14T18:02:40.277242+00:00","generated_at":"2026-05-16T13:04:40.706798+00:00","sec_items":["2.03","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"NW Natural issues $200M in first mortgage bonds across two tranches","bullets":["$75M of 5.13% Series due 2036, $125M of 5.90% Series due 2055 issued Dec 16, 2025.","Bonds sold to institutional investors via private placement under Section 4(a)(2).","5.13% bonds mature May 1, 2036; 5.90% bonds mature Dec 1, 2055.","Both series callable at make-whole premium before Feb 1, 2036 (5.13%) or June 1, 2055 (5.90%).","Issued under existing mortgage indenture with Deutsche Bank as trustee."],"urls":{"canonical":"https://secwatch.observer/filing/0001733998-25-000191","json":"https://secwatch.observer/filing/0001733998-25-000191.json","markdown":"https://secwatch.observer/filing/0001733998-25-000191.md","text":"https://secwatch.observer/filing/0001733998-25-000191.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1733998/000173399825000191/0001733998-25-000191-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/73020/000173399825000191/nwn-20251216.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T13:04:40.706798+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":"b47419e3f297940d22ba0a47c525c45f3f9d307f","claim":"Northwest Natural Holding Co incurred senior notes of $125,000,000 aggregate principal amount of its First Mortgage Bonds, 5.90% Series due 2055 with Deutsche Bank Trust Company Americas at 5.90% per annum maturing December 1, 2055.","evidence_excerpt":"On December 16, 2025, Northwest Natural Gas Company (NW Natural), a wholly owned subsidiary of Northwest Natural Holding Company, issued and sold (i) $75,000,000 aggregate principal amount of its First Mortgage Bonds, 5.13% Series due 2036 (the 5.13% Bonds), and (ii) $125,000,000 aggregate principal amount of its First Mortgage Bonds, 5.90% Series due 2055 (the 5.90% Bonds, together with the 5.13% Bonds, the Bonds), to certain institutional investors pursuant to a Bond Purchase Agreement dated December 16, 2025, in reliance on an exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended.","evidence_source":"SEC 8-K Item 2.03/2.04","evidence_url":"https://www.sec.gov/Archives/edgar/data/1733998/000173399825000191/0001733998-25-000191-index.htm","confidence":0.9,"family_label":"Debt Financings","details":[{"label":"Instrument","value":"senior notes"},{"label":"Principal","value":"$125,000,000 aggregate principal amount of its First Mortgage Bonds, 5.90% Series due 2055"},{"label":"Counterparty","value":"Deutsche Bank Trust Company Americas"},{"label":"Rate","value":"5.90% per annum"},{"label":"Maturity","value":"December 1, 2055"},{"label":"Event","value":"incurrence"}],"fact_type":"debt_financing"},{"claim_id":"e4ee2bc87ab1e663577c922983c85d349a0270e1","claim":"Northwest Natural Holding Co incurred senior notes of $75,000,000 aggregate principal amount of its First Mortgage Bonds, 5.13% Series due 2036 with Deutsche Bank Trust Company Americas at 5.13% per annum maturing May 1, 2036.","evidence_excerpt":"On December 16, 2025, Northwest Natural Gas Company (NW Natural), a wholly owned subsidiary of Northwest Natural Holding Company, issued and sold (i) $75,000,000 aggregate principal amount of its First Mortgage Bonds, 5.13% Series due 2036 (the 5.13% Bonds), and (ii) $125,000,000 aggregate principal amount of its First Mortgage Bonds, 5.90% Series due 2055 (the 5.90% Bonds, together with the 5.13% Bonds, the Bonds), to certain institutional investors pursuant to a Bond Purchase Agreement dated December 16, 2025, in reliance on an exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended.","evidence_source":"SEC 8-K Item 2.03/2.04","evidence_url":"https://www.sec.gov/Archives/edgar/data/1733998/000173399825000191/0001733998-25-000191-index.htm","confidence":0.9,"family_label":"Debt Financings","details":[{"label":"Instrument","value":"senior notes"},{"label":"Principal","value":"$75,000,000 aggregate principal amount of its First Mortgage Bonds, 5.13% Series due 2036"},{"label":"Counterparty","value":"Deutsche Bank Trust Company Americas"},{"label":"Rate","value":"5.13% per annum"},{"label":"Maturity","value":"May 1, 2036"},{"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"}