AVISTA CORP — Director's Dealing 2026

Mar 3, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AVISTA CORP (AVA)
CIK: 0000104918
Period of Report: 2026-03-02

Reporting Person: Hesler Gregory Curtis (Sr V President/Corp Secretary)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-03-02	Common Stock - Performance Shares (CEPS)	M	1652	—	Acquired	25372.97	Direct
2026-03-02	Common Stock - Performance Shares (CEPS)	F	403	$39.92	Disposed	24969.97	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-03-02	Conversion of 2023 Performance Shares (CEPS)	$	M	4128	Disposed		Common Stock (4128)	Direct

Footnotes

F1: No conversion price. Shares awarded if performance measure is met.

F2: Shares withheld to pay income tax on Performance Shares acquired 3/2/26.