As of November 6, 2026, Avista Corp has reported one leadership change filing to the SEC under Item 5.02 of Form 8-K, on July 2, 2026 (Form 8-K, July 2, 2026).
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Avista Corp reported a change among its directors and officers to the SEC on Form 8-K, Item 5.02, on 2026-07-02. Every row below is cited to the filing it comes from, and this page adds each new change as Avista Corp files it.
Also on the record for Avista Corp
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| April 29, 2026 | Stake report, Schedule 13G, by Vanguard Capital Management | 5.27% of the class | 5%+ stakes | Source |
| April 28, 2026 | Stake report, Schedule 13G, by Vanguard Portfolio Management | 8.52% of the class | 5%+ stakes | Source |
| March 26, 2026 | Stake report, Schedule 13G/A, by The Vanguard Group | — | 5%+ stakes | Source |
| October 30, 2025 | Stake report, Schedule 13G/A, by The Vanguard Group | 13.35% of the class | 5%+ stakes | Source |
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More on Avista Corp and the records around it.
Avista Corp elsewhere on the record
Companies that share a holder
- Vanguard Portfolio Management also filed stake reports on 941 other companies: Newmark Group Inc (Nov 2026), A10 Networks Inc (Oct 2026), ADT Inc (Oct 2026)
- Vanguard Capital Management also filed stake reports on 1495 other companies: A10 Networks Inc (Oct 2026), Altisource Portfolio Solutions SA (Oct 2026), Alto Neuroscience Inc (Oct 2026)
- The Vanguard Group also filed stake reports on 2384 other companies: BellRing Brands, Inc. (Sep 2026), CAL-MAINE FOODS INC (Sep 2026), FTAI Aviation Ltd. (Sep 2026)
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Timeline
| Filed | In / out | Person | Role | Effective | Source |
|---|---|---|---|---|---|
| 2026-07-02 | Reported | not named in the filing | 8-K, 2026-07-02 |
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Reported
On July 2, 2026, Jason R. Thackston, Senior Vice President of Growth, Energy Policy and External Relations of Avista Corporation (Avista Corp. or the Company), announced his retirement from the Company, effective January 1, 2027.
- In January 2027 Mr. Thackston will be joining his alma mater Whitworth University, with which he has previously served in Board-level leadership positions, as its Vice President of Finance and Administration and Chief Financial Officer.
- His decision to accept this position and depart from Avista Corp. is not due to any disagreement between himself and management or the Board of Directors.
- Mr. Thackston will focus on transition of his responsibilities over the next six months.
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Where this comes from
A public company must file a current report on Form 8-K with the SEC within four business days when a director leaves or is elected, or when its chief executive, chief financial, chief accounting or chief operating officer, or another named executive, departs or is appointed. That disclosure goes under Item 5.02 of the report.
Every change on this page is taken from one of those filings and quoted in the company's own words, with a link to the filing, so it can be checked at the source. Where a filing names the person, the role and the date a change takes effect, they are shown beside the quote. Where it does not, the quote stands on its own. A filing states what changed; it rarely states why, and neither does this page.