Northwest Natural Holding Co (NW Holdings) is a Portland, Oregon-based holding company operating regulated and non-regulated utility businesses. Its primary subsidiary, NW Natural, distributes natural gas to approximately 810,000 meters in Oregon and southwest Washington. Other subsidiaries include SiEnergy (gas distribution and transmission in Texas), NWN Water (regulated water and wastewater services in Oregon, Washington, Idaho, Arizona, and Texas), and NWN Renewables (non-regulated renewable natural gas activities). NW Natural has supplied gas service since 1859.
expected 2026-12-23
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2026-02-27 | 2025-12-31 | 0001733998-26-000012 | EDGAR | 107K words |
| 2025-02-28 | 2024-12-31 | 0001733998-25-000020 | EDGAR | 103K words |
| 2024-02-23 | 2023-12-31 | 0001733998-24-000011 | EDGAR | 100K words |
| 2023-02-24 | 2022-12-31 | 0001733998-23-000009 | EDGAR | — |
| 2022-02-25 | 2021-12-31 | 0001733998-22-000005 | EDGAR | — |
| 2021-02-26 | 2020-12-31 | 0001733998-21-000006 | EDGAR | — |
| 2020-03-02 | 2019-12-31 | 0001733998-20-000006 | EDGAR | — |
| 2019-03-01 | 2018-12-31 | 0001733998-19-000004 | EDGAR | — |
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2026-08-05 | 2026-06-30 | 0001733998-26-000127 | EDGAR | 48K words |
| 2025-11-05 | 2025-09-30 | 0001733998-25-000176 | EDGAR | 55K words |
| 2025-08-05 | 2025-06-30 | 0001733998-25-000132 | EDGAR | 51K words |
| 2025-05-06 | 2025-03-31 | 0001733998-25-000094 | EDGAR | 46K words |
| 2024-11-12 | 2024-09-30 | 0001733998-24-000125 | EDGAR | 49K words |
| 2024-08-02 | 2024-06-30 | 0001733998-24-000093 | EDGAR | 46K words |
| 2024-05-06 | 2024-03-31 | 0001733998-24-000075 | EDGAR | 42K words |
| 2023-11-03 | 2023-09-30 | 0001733998-23-000067 | EDGAR | — |
| 2023-08-03 | 2023-06-30 | 0001733998-23-000042 | EDGAR | — |
| 2023-05-04 | 2023-03-31 | 0001733998-23-000016 | EDGAR | — |
| 2022-11-08 | 2022-09-30 | 0001733998-22-000048 | EDGAR | — |
| 2022-08-04 | 2022-06-30 | 0001733998-22-000031 | EDGAR | — |
| Filed | Accession | Source | Full Text |
|---|---|---|---|
| 2026-09-23 | 0001733998-26-000145 | EDGAR | 1K words |
| 2026-09-03 | 0001733998-26-000137 | EDGAR | 14K words |
| 2026-08-05 | 0001733998-26-000125 | EDGAR | 8K words |
| 2026-07-31 | 0001733998-26-000123 | EDGAR | 2K words |
| 2026-03-24 | 0001733998-26-000081 | EDGAR | 2K words |
| 2026-02-27 | 0001733998-26-000006 | EDGAR | 8K words |
| 2025-12-16 | 0001733998-25-000191 | EDGAR | 13K words |
| 2025-12-15 | 0001733998-25-000189 | EDGAR | 1K words |
| 2025-11-05 | 0001733998-25-000174 | EDGAR | 10K words |
| 2025-10-28 | 0001733998-25-000172 | EDGAR | 1K words |
158 total filings indexed. 128 additional filings (S-1, DEF 14A, etc.) View all (JSON) · SEC EDGAR
| CIK | 0001733998 |
| Ticker | NWN |
| Exchange | NYSE |
| SIC | 4924: Natural Gas Distribution |
| Incorporated | OR |
| Headquarters | Portland, Oregon |
| Website | https://www.nwnaturalholdings.com |
| Listed | 1972-06-01 |
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