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Northwest Natural Holding Co — 4 Filings

365 4 filings on record

This page lists all 4 filings submitted to the SEC by Northwest Natural Holding Co (NWN), sorted by most recent first. Each row links to the full filing on EdgarLookup. Northwest Natural Holding Co has filed 365 4 documents with the SEC since 2018. To view all SEC filings by Northwest Natural Holding Co, see the full filings list.

Overview All Filings Financials Insiders
All 10-K 10-Q 11-K 144 3 305B2 4 4/A 424B2 424B3 424B5 5 8-K 8-K12B ARS CORRESP DEF 14A EFFECT FWP S-3ASR S-4 S-8 S-8 POS SC 13G SC 13G/A SCHEDULE 13G/A UPLOAD
Form Description Accession Number Filed Period
4 FORM 4 0001733998-26-000083 Mar 25, 2026 Mar 23, 2026
4 FORM 4 0001733998-26-000060 Mar 9, 2026 Mar 5, 2026
4 FORM 4 0001733998-26-000075 Mar 9, 2026 Mar 5, 2026
4 FORM 4 0001733998-26-000066 Mar 9, 2026 Mar 5, 2026
4 FORM 4 0001733998-26-000071 Mar 9, 2026 Mar 5, 2026
4 FORM 4 0001733998-26-000073 Mar 9, 2026 Mar 5, 2026
4 FORM 4 0001733998-26-000063 Mar 9, 2026 Mar 5, 2026
4 FORM 4 0001733998-26-000054 Mar 9, 2026 Mar 5, 2026
4 FORM 4 0001733998-26-000052 Mar 9, 2026 Mar 5, 2026
4 FORM 4 0001733998-26-000077 Mar 9, 2026 Mar 5, 2026
4 FORM 4 0001733998-26-000056 Mar 9, 2026 Mar 5, 2026
4 FORM 4 0001733998-26-000079 Mar 9, 2026 Mar 5, 2026
4 FORM 4 0001733998-26-000068 Mar 9, 2026 Mar 5, 2026
4 FORM 4 0001733998-26-000058 Mar 9, 2026 Mar 5, 2026
4 FORM 4 0001733998-26-000050 Mar 4, 2026 Mar 2, 2026
4 FORM 4 0001733998-26-000044 Mar 4, 2026 Mar 2, 2026
4 FORM 4 0001733998-26-000048 Mar 4, 2026 Mar 2, 2026
4 FORM 4 0001733998-26-000049 Mar 4, 2026 Mar 2, 2026
4 FORM 4 0001733998-26-000018 Feb 27, 2026 Feb 25, 2026
4 FORM 4 0001733998-26-000022 Feb 27, 2026 Feb 25, 2026
4 FORM 4 0001733998-26-000024 Feb 27, 2026 Feb 25, 2026
4 FORM 4 0001733998-26-000028 Feb 27, 2026 Feb 25, 2026
4 FORM 4 0001733998-26-000032 Feb 27, 2026 Feb 25, 2026
4 FORM 4 0001733998-26-000030 Feb 27, 2026 Feb 25, 2026
4 FORM 4 0001733998-26-000034 Feb 27, 2026 Feb 25, 2026
4 FORM 4 0001733998-26-000026 Feb 27, 2026 Feb 25, 2026
4 FORM 4 0001733998-26-000036 Feb 27, 2026 Feb 25, 2026
4 FORM 4 0001733998-26-000038 Feb 27, 2026 Feb 25, 2026
4 FORM 4 0001733998-26-000042 Feb 27, 2026 Feb 25, 2026
4 FORM 4 0001733998-26-000016 Feb 27, 2026 Feb 25, 2026
4 FORM 4 0001733998-26-000040 Feb 27, 2026 Feb 25, 2026
4 FORM 4 0001733998-26-000002 Jan 20, 2026 Jan 15, 2026
4 FORM 4 0001733998-25-000193 Dec 23, 2025 Dec 22, 2025
4 FORM 4 0001733998-25-000187 Nov 18, 2025 Nov 17, 2025
4 FORM 4 0001733998-25-000185 Nov 10, 2025 Nov 6, 2025
4 FORM 4 0001733998-25-000178 Nov 10, 2025 Nov 6, 2025
4 FORM 4 0001733998-25-000181 Nov 10, 2025 Nov 6, 2025
4 FORM 4 0001733998-25-000183 Nov 10, 2025 Nov 6, 2025
4 FORM 4 0001733998-25-000170 Oct 22, 2025 Oct 20, 2025
4 FORM 4 0001733998-25-000168 Oct 16, 2025 Oct 15, 2025
4 FORM 4 0001733998-25-000166 Oct 14, 2025 Oct 10, 2025
4 FORM 4 0001733998-25-000158 Oct 2, 2025 Sep 30, 2025
4 FORM 4 0001733998-25-000161 Oct 2, 2025 Oct 1, 2025
4 FORM 4 0001733998-25-000164 Oct 2, 2025 Oct 1, 2025
4 FORM 4 0001733998-25-000156 Sep 19, 2025 Sep 18, 2025
4 FORM 4 0001733998-25-000151 Sep 4, 2025 Sep 2, 2025
4 FORM 4 0001733998-25-000149 Sep 4, 2025 Sep 2, 2025
4 FORM 4 0001733998-25-000140 Aug 20, 2025 Aug 19, 2025
4 0001733998-25-000136 Aug 7, 2025 Aug 6, 2025
4 0001733998-25-000138 Aug 7, 2025 Aug 6, 2025