Northwest Natural Holding Co — All Filings
610 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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 |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-001982 | Mar 27, 2026 | — |
| 4 | FORM 4 | 0001733998-26-000083 | Mar 25, 2026 | Mar 23, 2026 |
| 8-K | 8-K | 0001733998-26-000081 | Mar 24, 2026 | Mar 23, 2026 |
| 144 | — | 0001959173-26-002574 | Mar 23, 2026 | — |
| 144 | — | 0001959173-26-002571 | Mar 23, 2026 | — |
| 4 | FORM 4 | 0001733998-26-000079 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001733998-26-000077 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001733998-26-000075 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001733998-26-000073 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001733998-26-000071 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001733998-26-000068 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001733998-26-000066 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001733998-26-000063 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001733998-26-000060 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001733998-26-000058 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001733998-26-000056 | 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 | 0001733998-26-000050 | Mar 4, 2026 | Mar 2, 2026 |
| 4 | FORM 4 | 0001733998-26-000049 | Mar 4, 2026 | Mar 2, 2026 |
| 4 | FORM 4 | 0001733998-26-000048 | Mar 4, 2026 | Mar 2, 2026 |
| 4 | FORM 4 | 0001733998-26-000044 | Mar 4, 2026 | Mar 2, 2026 |
| 4 | FORM 4 | 0001733998-26-000042 | Feb 27, 2026 | Feb 25, 2026 |
| 4 | FORM 4 | 0001733998-26-000040 | Feb 27, 2026 | Feb 25, 2026 |
| 4 | FORM 4 | 0001733998-26-000038 | Feb 27, 2026 | Feb 25, 2026 |
| 4 | FORM 4 | 0001733998-26-000036 | Feb 27, 2026 | Feb 25, 2026 |
| 4 | FORM 4 | 0001733998-26-000034 | 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 | 0001733998-26-000028 | Feb 27, 2026 | Feb 25, 2026 |
| 4 | FORM 4 | 0001733998-26-000026 | Feb 27, 2026 | Feb 25, 2026 |
| 4 | FORM 4 | 0001733998-26-000024 | Feb 27, 2026 | Feb 25, 2026 |
| 4 | FORM 4 | 0001733998-26-000022 | Feb 27, 2026 | Feb 25, 2026 |
| 4 | FORM 4 | 0001733998-26-000018 | Feb 27, 2026 | Feb 25, 2026 |
| 4 | FORM 4 | 0001733998-26-000016 | Feb 27, 2026 | Feb 25, 2026 |
| S-8 | S-8 | 0001733998-26-000014 | Feb 27, 2026 | — |
| 10-K | 10-K | 0001733998-26-000012 | Feb 27, 2026 | Dec 31, 2025 |
| 8-K | 8-K | 0001733998-26-000006 | Feb 27, 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 |
| 8-K | 8-K | 0001733998-25-000191 | Dec 16, 2025 | — |
| 8-K | 8-K | 0001733998-25-000189 | Dec 15, 2025 | Dec 11, 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 | 0001733998-25-000183 | Nov 10, 2025 | Nov 6, 2025 |
| 4 | FORM 4 | 0001733998-25-000181 | Nov 10, 2025 | Nov 6, 2025 |
| 4 | FORM 4 | 0001733998-25-000178 | Nov 10, 2025 | Nov 6, 2025 |
| 10-Q | 10-Q | 0001733998-25-000176 | Nov 5, 2025 | Sep 30, 2025 |
| 8-K | 8-K | 0001733998-25-000174 | Nov 5, 2025 | — |
| 8-K | 8-K | 0001733998-25-000172 | Oct 28, 2025 | Oct 24, 2025 |