{"filing":{"accession_number":"0001733998-26-000114","cik":"0001733998","ticker":"NWN","company_name":"Northwest Natural Holding Co","form":"8-K","filing_date":"2026-06-04","report_date":null,"primary_document":"nwn-20260604.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000114/nwn-20260604.htm"},"events":[{"id":7011,"run_id":6150,"accession_number":"0001733998-26-000114","anchor_item_number":"1.01","event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.65,"summary":"Northwest Natural Holding Company entered into a Note Purchase Agreement on June 4, 2026, to issue $120 million in aggregate principal amount of senior notes across three series (Series E, F, and G) with maturities ranging from 2031 to 2036, creating material direct financial obligations.","company_name":"Northwest Natural Holding Co","ticker":"NWN","filing_date":"2026-06-04","form":"8-K","submitted_at":null,"items":[{"id":4611,"accession_number":"0001733998-26-000114","item_number":"1.01","item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.45,"reasoning":"Northwest Natural Holding Company entered into a Note Purchase Agreement on June 4, 2026, to issue $120 million in aggregate principal amount of senior notes across three series (Series E, F, and G) with maturities ranging from 2031 to 2036. While this is a material financing transaction, it does not fit cleanly into the ma_activity category, which typically covers acquisitions, dispositions, mergers, or changes of control. This is more accurately a debt issuance, which is not explicitly enumerated in the taxonomy.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-05T16:47:17.464121+00:00","company_name":"","ticker":null,"filing_date":""},{"id":4612,"accession_number":"0001733998-26-000114","item_number":"2.03","item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.75,"reasoning":"Item 2.03 incorporates by reference Item 1.01 (Business Combinations), indicating a material acquisition or merger has been entered into. The creation of direct financial obligations is a typical consequence of M\u0026A activity. Without access to the full Item 1.01 text, the incorporation language strongly suggests a material transaction requiring disclosure under both items.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-05T16:47:17.464121+00:00","company_name":"","ticker":null,"filing_date":""}]},{"id":7012,"run_id":6150,"accession_number":"0001733998-26-000114","anchor_item_number":"8.01","event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.75,"summary":"NW Natural Water Company, LLC, a subsidiary of Northwest Natural Holding Co, issued $75 million in aggregate principal amount of senior notes ($33M Series A at 5.15% due 2031 and $42M Series B at 5.58% due 2036) on June 4, 2026, with proceeds to be used for general corporate purposes and repayment of existing indebtedness.","company_name":"Northwest Natural Holding Co","ticker":"NWN","filing_date":"2026-06-04","form":"8-K","submitted_at":null,"items":[{"id":4613,"accession_number":"0001733998-26-000114","item_number":"8.01","item_title":null,"event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.75,"reasoning":"NW Natural Water Company, LLC (a subsidiary of Northwest Natural Holding Co) issued $75 million in aggregate principal amount of senior notes ($33M Series A at 5.15% due 2031 and $42M Series B at 5.58% due 2036) on June 4, 2026. While this is a material debt issuance that would affect investor assessment of the registrant's capital structure and financial obligations, it does not fit cleanly into the more specific event categories. The proceeds are to be used for general corporate purposes and repayment of existing indebtedness, making this a significant financing event but not a covenant breach, M\u0026A activity, or other specifically-defined event type.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-05T16:47:17.464121+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":4611,"accession_number":"0001733998-26-000114","item_number":"1.01","item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.45,"reasoning":"Northwest Natural Holding Company entered into a Note Purchase Agreement on June 4, 2026, to issue $120 million in aggregate principal amount of senior notes across three series (Series E, F, and G) with maturities ranging from 2031 to 2036. While this is a material financing transaction, it does not fit cleanly into the ma_activity category, which typically covers acquisitions, dispositions, mergers, or changes of control. This is more accurately a debt issuance, which is not explicitly enumerated in the taxonomy.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-05T16:47:17.464121+00:00","company_name":"Northwest Natural Holding Co","ticker":"NWN","filing_date":"2026-06-04"},{"id":4612,"accession_number":"0001733998-26-000114","item_number":"2.03","item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.75,"reasoning":"Item 2.03 incorporates by reference Item 1.01 (Business Combinations), indicating a material acquisition or merger has been entered into. The creation of direct financial obligations is a typical consequence of M\u0026A activity. Without access to the full Item 1.01 text, the incorporation language strongly suggests a material transaction requiring disclosure under both items.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-05T16:47:17.464121+00:00","company_name":"Northwest Natural Holding Co","ticker":"NWN","filing_date":"2026-06-04"},{"id":4613,"accession_number":"0001733998-26-000114","item_number":"8.01","item_title":null,"event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.75,"reasoning":"NW Natural Water Company, LLC (a subsidiary of Northwest Natural Holding Co) issued $75 million in aggregate principal amount of senior notes ($33M Series A at 5.15% due 2031 and $42M Series B at 5.58% due 2036) on June 4, 2026. While this is a material debt issuance that would affect investor assessment of the registrant's capital structure and financial obligations, it does not fit cleanly into the more specific event categories. The proceeds are to be used for general corporate purposes and repayment of existing indebtedness, making this a significant financing event but not a covenant breach, M\u0026A activity, or other specifically-defined event type.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-05T16:47:17.464121+00:00","company_name":"Northwest Natural Holding Co","ticker":"NWN","filing_date":"2026-06-04"}]}