X0407 4 2023-05-19 0 0001620463 Athira Pharma, Inc. ATHA 0001763316 Kosacz Barbara C/O ATHIRA PHARMA, INC. 18706 NORTH CREEK PARKWAY, SUITE 104 BOTHELL WA 98011 1 0 0 0 0 Stock Option (Right to Buy) 2.89 2023-05-19 4 A 0 20900 0.00 A 2033-05-18 Common Stock 20900 20900 D The shares subject to the option will vest on the earlier of (i) May 19, 2024, or (ii) the day immediately before the date of the next annual meeting of the Issuer's stockholders that occurs after May 19, 2023. The option reported was granted pursuant to the terms of the Issuer's Outside Director Compensation Policy. /s/ Mark Worthington, Attorney in fact for Barbara Kosacz 2023-05-22