Northwest Natural Holding Company SEC filings NWN
Northwest Natural Holding Company has 651 filings in SEC EDGAR's recent list, going back to Mar 9, 2018. Its latest annual report, Form ARS, was filed on Apr 17, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 5, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Results of operations
|
Nov 5, 2026 | Nov 5, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Sep 23, 2026 | Sep 22, 2026 |
| 8-K |
Current report
New debt
|
Sep 3, 2026 | Sep 3, 2026 |
| 10-Q | Quarterly report | Aug 5, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2026 | Aug 5, 2026 |
| 8-K |
Current report
Other events
|
Jul 31, 2026 | Jul 29, 2026 |
| 11-K | Employee savings plan report | Jun 25, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Material agreement, New debt, Other events
|
Jun 5, 2026 | Jun 4, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 1, 2026 | May 28, 2026 |
| 10-Q | Quarterly report | May 6, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 6, 2026 | May 6, 2026 |
| ARS | Annual report to shareholders | Apr 17, 2026 | Dec 31, 2025 |
| DEF 14A | Proxy statement | Apr 17, 2026 | May 28, 2026 |
| 8-K |
Current report
Other events
|
Mar 24, 2026 | Mar 23, 2026 |
| S-8 | Employee stock plan registration | Feb 27, 2026 | — |
| 10-K | Annual report | Feb 27, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 27, 2026 | Feb 27, 2026 |
| 8-K |
Current report
New debt
|
Dec 16, 2025 | Dec 16, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Dec 15, 2025 | Dec 11, 2025 |
| 10-Q | Quarterly report | Nov 5, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2025 | Nov 5, 2025 |
| 8-K |
Current report
Other events
|
Oct 28, 2025 | Oct 24, 2025 |
| 8-K |
Current report
Other events
|
Sep 2, 2025 | Aug 29, 2025 |
| 8-K |
Current report
Other events
|
Aug 26, 2025 | Aug 25, 2025 |
| 10-Q | Quarterly report | Aug 5, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2025 | Aug 5, 2025 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Jul 25, 2025 | Jul 23, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jul 3, 2025 | Jun 30, 2025 |
| 11-K | Employee savings plan report | Jun 26, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Other events
|
Jun 24, 2025 | Jun 23, 2025 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 27, 2025 | May 22, 2025 |
| 10-Q | Quarterly report | May 6, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 6, 2025 | May 6, 2025 |
| ARS | Annual report to shareholders | Apr 10, 2025 | Dec 31, 2024 |
| DEF 14A | Proxy statement | Apr 10, 2025 | May 22, 2025 |
| 8-K |
Current report
Other events
|
Mar 18, 2025 | Mar 18, 2025 |
| 424B5 | Prospectus supplement | Mar 14, 2025 | — |
| FWP | Free writing prospectus | Mar 12, 2025 | — |
| 305B2 | Filing | Mar 12, 2025 | — |
| 424B3 | Prospectus | Mar 12, 2025 | — |
| 10-K | Annual report | Feb 28, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 28, 2025 | Feb 28, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jan 10, 2025 | Jan 9, 2025 |
| 8-K |
Current report
New debt, Regulation FD disclosure, Other events
|
Jan 8, 2025 | Jan 7, 2025 |
| 8-K |
Current report
New debt
|
Jan 6, 2025 | Jan 6, 2025 |
| 8-K |
Current report
Other events
|
Dec 30, 2024 | Dec 30, 2024 |
| 8-K |
Current report
New debt
|
Dec 19, 2024 | Dec 19, 2024 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Nov 18, 2024 | Nov 17, 2024 |
| 10-Q | Quarterly report | Nov 12, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 12, 2024 | Nov 12, 2024 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Oct 29, 2024 | Oct 25, 2024 |
| 8-K |
Current report
Officer or director change
|
Aug 22, 2024 | Aug 19, 2024 |
| 8-K |
Current report
Other events
|
Aug 9, 2024 | Aug 9, 2024 |
| 424B5 | Prospectus supplement | Aug 9, 2024 | — |
| S-3ASR | Automatic shelf registration | Aug 9, 2024 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Aug 9, 2024 | Aug 9, 2024 |
| 10-Q | Quarterly report | Aug 2, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2024 | Aug 2, 2024 |
| 8-K |
Current report
Other events
|
Jul 25, 2024 | Jul 24, 2024 |
| 11-K | Employee savings plan report | Jun 14, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results, Other events
|
May 29, 2024 | May 23, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
May 23, 2024 | May 23, 2024 |
| 10-Q | Quarterly report | May 6, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 6, 2024 | May 6, 2024 |
| ARS | Annual report to shareholders | Apr 11, 2024 | Dec 31, 2023 |
| DEF 14A | Proxy statement | Apr 11, 2024 | May 23, 2024 |
| 10-K | Annual report | Feb 23, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 23, 2024 | Feb 23, 2024 |
| 8-K |
Current report
New debt
|
Jan 11, 2024 | Jan 5, 2024 |
| 8-K |
Current report
Other events
|
Dec 29, 2023 | Dec 29, 2023 |
| 8-K |
Current report
New debt
|
Dec 15, 2023 | Dec 14, 2023 |
| S-8 | Employee stock plan registration | Nov 6, 2023 | — |
| S-8 | Employee stock plan registration | Nov 6, 2023 | — |
| 10-Q | Quarterly report | Nov 3, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 3, 2023 | Nov 3, 2023 |
| 11-K | Employee savings plan report | Oct 18, 2023 | Dec 31, 2022 |
| 8-K |
Current report
New debt
|
Aug 7, 2023 | Aug 4, 2023 |
| 10-Q | Quarterly report | Aug 3, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 3, 2023 | Aug 3, 2023 |
| 8-K |
Current report
Officer or director change
|
Jul 28, 2023 | Jul 24, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Jun 1, 2023 | May 25, 2023 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
May 26, 2023 | May 25, 2023 |
| 10-Q | Quarterly report | May 4, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
May 4, 2023 | May 4, 2023 |
| ARS | Annual report to shareholders | Apr 13, 2023 | Dec 31, 2022 |
| DEF 14A | Proxy statement | Apr 13, 2023 | — |
| 10-K | Annual report | Feb 24, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations
|
Feb 24, 2023 | Feb 24, 2023 |
| 8-K |
Current report
New debt
|
Jan 6, 2023 | Jan 6, 2023 |
| 8-K |
Current report
New debt
|
Dec 14, 2022 | Dec 13, 2022 |
| 10-Q | Quarterly report | Nov 8, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 8, 2022 | Nov 8, 2022 |
| 8-K |
Current report
Other events
|
Oct 27, 2022 | Oct 24, 2022 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Oct 6, 2022 | Oct 5, 2022 |
| 8-K |
Current report
New debt
|
Sep 30, 2022 | Sep 30, 2022 |
| 8-K |
Current report
New debt
|
Sep 21, 2022 | Sep 15, 2022 |
| S-8 | Employee stock plan registration | Aug 4, 2022 | — |
| 10-Q | Quarterly report | Aug 4, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2022 | Aug 4, 2022 |
| 8-K |
Current report
New debt
|
Jul 15, 2022 | Jul 15, 2022 |
| 11-K | Employee savings plan report | Jun 24, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Other events
|
Jun 1, 2022 | May 31, 2022 |
| 8-K |
Current report
Shareholder vote results
|
May 26, 2022 | May 23, 2022 |
| 10-Q | Quarterly report | May 4, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
May 4, 2022 | May 4, 2022 |
| DEF 14A | Proxy statement | Apr 14, 2022 | May 23, 2022 |
| 8-K |
Current report
Other events
|
Apr 1, 2022 | Apr 1, 2022 |
| 424B2 | Prospectus | Mar 30, 2022 | — |
| 424B5 | Prospectus supplement | Mar 29, 2022 | — |
| 10-K | Annual report | Feb 25, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations
|
Feb 25, 2022 | Feb 25, 2022 |
| S-8 POS | Filing | Dec 21, 2021 | — |
| 8-K |
Current report
Other events
|
Dec 20, 2021 | Dec 17, 2021 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Dec 13, 2021 | Dec 8, 2021 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Dec 9, 2021 | Dec 8, 2021 |
| 10-Q | Quarterly report | Nov 5, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2021 | Nov 5, 2021 |
| 8-K |
Current report
Other events
|
Oct 26, 2021 | Oct 21, 2021 |
| 8-K |
Current report
Other events
|
Aug 13, 2021 | Aug 13, 2021 |
| 424B5 | Prospectus supplement | Aug 13, 2021 | — |
| S-3ASR | Automatic shelf registration | Aug 13, 2021 | — |
| 8-K |
Current report
Officer or director change
|
Aug 11, 2021 | Aug 6, 2021 |
| 10-Q | Quarterly report | Aug 5, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2021 | Aug 5, 2021 |
| 11-K | Employee savings plan report | Jun 21, 2021 | Dec 31, 2020 |
| 8-K |
Current report
New debt
|
Jun 14, 2021 | Jun 10, 2021 |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change, Shareholder vote results
|
Jun 3, 2021 | May 27, 2021 |
| 10-Q | Quarterly report | May 5, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
May 5, 2021 | May 5, 2021 |
| DEF 14A | Proxy statement | Apr 15, 2021 | May 27, 2021 |
| 10-K | Annual report | Feb 26, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Results of operations
|
Feb 26, 2021 | Feb 26, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 7, 2021 | Jan 7, 2021 |
| 8-K |
Current report
Other events
|
Dec 21, 2020 | Dec 18, 2020 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Dec 15, 2020 | Dec 9, 2020 |
| 8-K |
Current report
Material agreement, Other events
|
Dec 7, 2020 | Dec 4, 2020 |
| 10-Q | Quarterly report | Nov 5, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2020 | Nov 5, 2020 |
| 8-K |
Current report
Officer or director change
|
Oct 23, 2020 | Oct 20, 2020 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Oct 19, 2020 | Oct 16, 2020 |
| 8-K |
Current report
Material agreement
|
Sep 29, 2020 | Sep 28, 2020 |
| 8-K |
Current report
Material agreement
|
Aug 17, 2020 | Aug 14, 2020 |
| 10-Q | Quarterly report | Aug 7, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2020 | Aug 7, 2020 |
| 8-K |
Current report
Other events
|
Aug 3, 2020 | Jul 31, 2020 |
| 11-K | Employee savings plan report | Jun 26, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Material agreement
|
Jun 26, 2020 | Jun 26, 2020 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jun 22, 2020 | Jun 18, 2020 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 3, 2020 | May 28, 2020 |
| 8-K |
Current report
Material agreement
|
May 15, 2020 | May 15, 2020 |
| 10-Q | Quarterly report | May 8, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations
|
May 8, 2020 | May 8, 2020 |
| DEF 14A | Proxy statement | Apr 16, 2020 | May 28, 2020 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Apr 7, 2020 | Apr 3, 2020 |
| 8-K |
Current report
Material agreement, New debt, Other events
|
Mar 25, 2020 | Mar 20, 2020 |
| 8-K |
Current report
Other events
|
Mar 13, 2020 | Mar 10, 2020 |
| 10-K | Annual report | Mar 2, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Material agreement, Results of operations, Other events
|
Mar 2, 2020 | Feb 26, 2020 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Dec 31, 2019 | Dec 30, 2019 |
| 8-K |
Current report
Material agreement, Other events
|
Dec 16, 2019 | Dec 10, 2019 |
| 8-K |
Current report
Officer or director change
|
Nov 13, 2019 | Nov 12, 2019 |
| S-8 | Employee stock plan registration | Nov 6, 2019 | — |
| 10-Q | Quarterly report | Nov 5, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2019 | Nov 4, 2019 |
| 8-K |
Current report
Other events
|
Oct 23, 2019 | Oct 21, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 21, 2019 | Oct 21, 2019 |
| UPLOAD | Letter from the SEC | Sep 26, 2019 | — |
| CORRESP | Letter to the SEC | Sep 17, 2019 | — |
| UPLOAD | Letter from the SEC | Sep 5, 2019 | — |
| 10-Q | Quarterly report | Aug 6, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2019 | Aug 6, 2019 |
| 11-K | Employee savings plan report | Jun 25, 2019 | Jun 24, 2019 |
| 8-K |
Current report
Other events
|
Jun 7, 2019 | Jun 7, 2019 |
| 424B2 | Prospectus | Jun 5, 2019 | — |
| 424B5 | Prospectus supplement | Jun 4, 2019 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
May 31, 2019 | May 31, 2019 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
May 31, 2019 | May 31, 2019 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results, Other events
|
May 30, 2019 | May 30, 2019 |
| 8-K |
Current report
Other events
|
May 24, 2019 | May 24, 2019 |
| 10-Q | Quarterly report | May 7, 2019 | Mar 31, 2019 |
| 8-K |
Current report
Results of operations
|
May 7, 2019 | May 7, 2019 |
| DEF 14A | Proxy statement | Apr 11, 2019 | May 23, 2019 |
| 8-K |
Current report
Impairment, Other events
|
Mar 27, 2019 | Mar 27, 2019 |
| 10-K | Annual report | Mar 1, 2019 | Dec 31, 2018 |
| 8-K |
Current report
Results of operations
|
Mar 1, 2019 | Mar 1, 2019 |
| 8-K |
Current report
Other events
|
Feb 5, 2019 | Feb 4, 2019 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jan 2, 2019 | Dec 31, 2018 |
| 10-Q | Quarterly report | Nov 6, 2018 | Sep 30, 2018 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2018 | Nov 6, 2018 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Oct 29, 2018 | Oct 26, 2018 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Oct 16, 2018 | Oct 12, 2018 |
| S-8 | Employee stock plan registration | Oct 3, 2018 | — |
| S-8 POS | Filing | Oct 3, 2018 | — |
| S-8 POS | Filing | Oct 3, 2018 | — |
| S-8 POS | Filing | Oct 3, 2018 | — |
| S-8 POS | Filing | Oct 3, 2018 | — |
| S-8 POS | Filing | Oct 3, 2018 | — |
| S-8 POS | Filing | Oct 3, 2018 | — |
| 8-K |
Current report
New debt
|
Oct 3, 2018 | Oct 2, 2018 |
| S-3ASR | Automatic shelf registration | Oct 2, 2018 | — |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Natural Gas Distribution (SIC 4924)
- Listed as
- NWN (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- OR
- Headquarters
- Portland, OR
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1733998
Other Natural Gas Distribution companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.