Heather L. Rosentrater - 09 Feb 2026 Form 4 Insider Report for AVISTA CORP (AVA)

Role: President & CEO
Signature: /s/Heather L. Rosentrater
Issuer symbol: AVA
Transactions as of: 09 Feb 2026
Net transactions value: +$2,900,002
Form type: 4
Filing time: 10 Feb 2026, 17:06:12 UTC
Previous filing: 08 Jan 2026
Next filing: 03 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Rosentrater Heather Lynn	President & CEO	1411 E. MISSION AVENUE, SPOKANE	/s/Heather L. Rosentrater	10 Feb 2026	0001659415

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AVA	Common Stock - Restricted Shares Grant 2026	Award	$869,931	+21,223	+39%	$40.99	76,051	09 Feb 2026	Direct	F1
holding	AVA	Common Stock in Spouse's Plan						695	09 Feb 2026	Shares Held by Spouse

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	$2,030,071	+49,526		$40.99	49,526	09 Feb 2026	Common Stock	49,526		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.