Avista Corp SEC filings AVA
Avista Corp has 1,010 filings in SEC EDGAR's recent list, going back to Jan 4, 2018. Its latest annual report, Form ARS, was filed on Apr 1, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 4, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (results of operations, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| S-8 | Employee stock plan registration | Apr 27, 2026 | — |
| 424B5 | Prospectus supplement | Aug 8, 2025 | — |
| 424B5 | Prospectus supplement | May 7, 2025 | — |
| S-3ASR | Automatic shelf registration | May 7, 2025 | — |
| 424B5 | Prospectus supplement | May 7, 2024 | — |
| 424B5 | Prospectus supplement | Aug 2, 2023 | — |
| 424B5 | Prospectus supplement | May 9, 2022 | — |
| S-3ASR | Automatic shelf registration | May 9, 2022 | — |
| 424B2 | Prospectus | Mar 10, 2022 | — |
| FWP | Free writing prospectus | Mar 8, 2022 | — |
| 424B3 | Prospectus | Mar 8, 2022 | — |
| 424B5 | Prospectus supplement | Aug 6, 2021 | — |
| 424B5 | Prospectus supplement | May 15, 2020 | — |
| 424B3 | Prospectus | Aug 8, 2019 | — |
| 424B5 | Prospectus supplement | May 15, 2019 | — |
| S-3ASR | Automatic shelf registration | May 13, 2019 | — |
| 424B2 | Prospectus | May 16, 2018 | — |
| FWP | Free writing prospectus | May 15, 2018 | — |
| 424B3 | Prospectus | May 15, 2018 | — |
Showing 19 filings. 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.
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Company profile
- Industry
- Electric & Other Services Combined (SIC 4931)
- Listed as
- AVA (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- WA
- Headquarters
- Spokane, WA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 104918
- Former names
- WASHINGTON WATER POWER CO (until Dec 10, 1998)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.