144 0001978840 XXXXXXXX LIVE 0000104918 AVISTA CORP 001-03701 1411 E MISSION AVE SPOKANE WA 99202 5094890500 Manuel Wayne O Senior Vice President Common Stock Citigroup Global Markets, Inc

390 Greenwich Street New York NY 10013

1785 69240.15 81400000 12/16/2025 NYSE Common Stock 01/10/2025 Retained Shares Avista Corporation N 1785 12/16/2025 Compensation Y 12/16/2025 Conformed Signature On File