Avista CorporationSEC Filings
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All SEC filings by Avista Corporation (AVA) — annual and quarterly reports, current reports, registrations, proxies and ownership forms, updated in real time.
Financials
| 10-Q | Quarterly report | View Diff | Jul 31, 2026 | |
| 10-Q | Quarterly report | View Diff | May 4, 2026 | |
| ARS | Annual report to shareholders | Apr 1, 2026 | ||
| 10-K | Annual report | View Diff | Feb 24, 2026 | |
| 10-Q | Quarterly report | View Diff | Nov 4, 2025 | |
| 10-Q | Quarterly report | View Diff | Aug 5, 2025 | |
| 10-Q | Quarterly report | View Diff | May 6, 2025 | |
| ARS | Annual report to shareholders | Mar 26, 2025 | ||
| 10-K | Annual report | View Diff | Feb 25, 2025 | |
| 10-Q | Quarterly report | View Diff | Nov 5, 2024 |
Events
| 8-K | Current report | Aug 19, 2026 | ||
| 8-K | Active Fires and Damaged Infrastructure Continue to Affect Electric and Natural Gas Service in Parts of the Spokane Area | Aug 3, 2026 | ||
| 8-K | Investors: Stacey Walters (509) 495-2046stacey.walters@avistacorp.com | Jul 31, 2026 | ||
| 8-K | Current report | Jul 2, 2026 | ||
| 8-K | Current report | Jun 12, 2026 | ||
| 8-K | Current report | Jun 2, 2026 | ||
| 8-K | Entry Into a Material Definitive Agreement | May 19, 2026 | ||
| 8-K | Invested in Progress Grounded in Resilience Investor Presentation May 2026 | May 13, 2026 | ||
| 8-K | Avista Corp. Reports Q1 2026 Financial Results, Confirms 2026 Utility Earnings Guidance | May 4, 2026 | ||
| 8-K | Energy That Transforms Investor Presentation March 2026 | Mar 4, 2026 |
Registrations and Prospectuses
| S-8 | Registration of securities for employees | Apr 27, 2026 | ||
| 424B5 | Prospectus supplement for primary offering | Aug 8, 2025 | ||
| 424B5 | Prospectus supplement for primary offering | May 7, 2025 | ||
| S-3ASR | Automatic shelf registration | May 7, 2025 | ||
| 424B5 | Prospectus supplement for primary offering | May 7, 2024 | ||
| 424B5 | Prospectus supplement for primary offering | Aug 2, 2023 | ||
| 424B5 | Prospectus supplement for primary offering | May 9, 2022 | ||
| S-3ASR | Automatic shelf registration | May 9, 2022 | ||
| 424B2 | Prospectus for primary offering | Mar 9, 2022 | ||
| FWP | Free writing prospectus | Mar 8, 2022 |
Proxies
| DEFA14A | Additional proxy soliciting materials | Apr 1, 2026 | ||
| DEF 14A | Definitive proxy | View Diff | Apr 1, 2026 | |
| DEFA14A | Additional proxy soliciting materials | Mar 26, 2025 | ||
| DEF 14A | Definitive proxy | View Diff | Mar 26, 2025 | |
| DEFA14A | Additional proxy soliciting materials | Mar 20, 2024 | ||
| DEF 14A | Definitive proxy | View Diff | Mar 20, 2024 | |
| DEFA14A | Additional proxy soliciting materials | Mar 28, 2023 | ||
| DEF 14A | Definitive proxy | View Diff | Mar 28, 2023 | |
| DEFA14A | Additional proxy soliciting materials | Mar 31, 2022 | ||
| DEF 14A | Definitive proxy | View Diff | Mar 31, 2022 |
Other
| SD | Conflict minerals disclosure | May 20, 2020 | ||
| SD | Conflict minerals disclosure | May 31, 2019 | ||
| UPLOAD | Letter from SEC | Aug 28, 2018 | ||
| CORRESP | Correspondence with SEC | Aug 23, 2018 | ||
| UPLOAD | Letter from SEC | Aug 14, 2018 | ||
| EFFECT | Notice of effectiveness | Dec 24, 2014 | ||
| EFFECT | Notice of effectiveness | May 8, 2014 | ||
| UPLOAD | Letter from SEC | Oct 22, 2012 | ||
| CORRESP | Correspondence with SEC | Sep 28, 2012 | ||
| UPLOAD | Letter from SEC | Sep 17, 2012 |