Northwest Natural Holding Co - NWN
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 51
Latest filed: Mar 27, 2026
| Form | Count |
|---|---|
| 4 | 41 |
| 8-K | 6 |
| 144 | 3 |
| SCHEDULE 13G/A | 1 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Mar 27, 2026 | SCHEDULE 13G/A | — | 0000102909-26-001982 | View |
| Mar 25, 2026 | 4 | Mar 23, 2026 | 0001733998-26-000083 | View |
| Mar 24, 2026 | 8-K | Mar 23, 2026 | 0001733998-26-000081 | View |
| Mar 23, 2026 | 144 | — | 0001959173-26-002571 | View |
| Mar 23, 2026 | 144 | — | 0001959173-26-002574 | View |
| Mar 09, 2026 | 4 | Mar 05, 2026 | 0001733998-26-000063 | View |
| Mar 09, 2026 | 4 | Mar 05, 2026 | 0001733998-26-000066 | View |
| Mar 09, 2026 | 4 | Mar 05, 2026 | 0001733998-26-000068 | View |
| Mar 09, 2026 | 4 | Mar 05, 2026 | 0001733998-26-000071 | View |
| Mar 09, 2026 | 4 | Mar 05, 2026 | 0001733998-26-000073 | View |
| Mar 09, 2026 | 4 | Mar 05, 2026 | 0001733998-26-000075 | View |
| Mar 09, 2026 | 4 | Mar 05, 2026 | 0001733998-26-000077 | View |
| Mar 09, 2026 | 4 | Mar 05, 2026 | 0001733998-26-000079 | View |
| Mar 09, 2026 | 4 | Mar 05, 2026 | 0001733998-26-000052 | View |
| Mar 09, 2026 | 4 | Mar 05, 2026 | 0001733998-26-000054 | View |
| Mar 09, 2026 | 4 | Mar 05, 2026 | 0001733998-26-000056 | View |
| Mar 09, 2026 | 4 | Mar 05, 2026 | 0001733998-26-000058 | View |
| Mar 09, 2026 | 4 | Mar 05, 2026 | 0001733998-26-000060 | View |
| Mar 04, 2026 | 4 | Mar 02, 2026 | 0001733998-26-000044 | View |
| Mar 04, 2026 | 4 | Mar 02, 2026 | 0001733998-26-000048 | View |
| Mar 04, 2026 | 4 | Mar 02, 2026 | 0001733998-26-000049 | View |
| Mar 04, 2026 | 4 | Mar 02, 2026 | 0001733998-26-000050 | View |
| Feb 27, 2026 | 8-K | Feb 27, 2026 | 0001733998-26-000006 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001733998-26-000016 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001733998-26-000018 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001733998-26-000022 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001733998-26-000024 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001733998-26-000026 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001733998-26-000028 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001733998-26-000030 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001733998-26-000032 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001733998-26-000034 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001733998-26-000036 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001733998-26-000038 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001733998-26-000040 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001733998-26-000042 | View |
| Jan 20, 2026 | 4 | Jan 15, 2026 | 0001733998-26-000002 | View |
| Dec 23, 2025 | 4 | Dec 22, 2025 | 0001733998-25-000193 | View |
| Dec 16, 2025 | 8-K | Dec 16, 2025 | 0001733998-25-000191 | View |
| Dec 15, 2025 | 8-K | Dec 11, 2025 | 0001733998-25-000189 | View |
| Nov 18, 2025 | 4 | Nov 17, 2025 | 0001733998-25-000187 | View |
| Nov 10, 2025 | 4 | Nov 06, 2025 | 0001733998-25-000178 | View |
| Nov 10, 2025 | 4 | Nov 06, 2025 | 0001733998-25-000181 | View |
| Nov 10, 2025 | 4 | Nov 06, 2025 | 0001733998-25-000183 | View |
| Nov 10, 2025 | 4 | Nov 06, 2025 | 0001733998-25-000185 | View |
| Nov 05, 2025 | 8-K | Nov 05, 2025 | 0001733998-25-000174 | View |
| Oct 28, 2025 | 8-K | Oct 24, 2025 | 0001733998-25-000172 | View |
| Oct 22, 2025 | 4 | Oct 20, 2025 | 0001733998-25-000170 | View |
| Oct 20, 2025 | 144 | — | 0001949846-25-000535 | View |
| Oct 16, 2025 | 4 | Oct 15, 2025 | 0001733998-25-000168 | View |
| Oct 14, 2025 | 4 | Oct 10, 2025 | 0001733998-25-000166 | View |