Jason R. Thackston - 09 Feb 2026 Form 4 Insider Report for AVISTA CORP (AVA)

Role: Senior Vice President
Signature: /s/Jason R. Thackston
Issuer symbol: AVA
Transactions as of: 09 Feb 2026
Net transactions value: +$430,026
Form type: 4
Filing time: 10 Feb 2026, 17:09:02 UTC
Previous filing: 08 Jan 2026
Next filing: 04 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Thackston Jason R	Senior Vice President	1411 E MISSION AVENUE, SPOKANE	/s/Jason R. Thackston	10 Feb 2026	0001466555

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AVA	Common Stock - Restricted Shares Grant 2026	Award	$128,996	+3,147	+7.9%	$40.99	43,236	09 Feb 2026	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	AVA	Performance Shares Grant - 2026	Award	$301,031	+7,344		$40.99	7,344	09 Feb 2026	Common Stock	7,344		Direct	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Restricted Shares vest 1/3 each year over a 3-year period and are payable in Avista Corp. Common Stock at the end of each year in the 3-year period.
F2	No conversion price. Shares awarded if performance measure is met.
F3	Each performance cycle is 3 years in length. Shares will be issued at the end of each 3-year cycle if performance measure is met.