X0306 4 2022-12-02 0 0001620463 Athira Pharma, Inc. ATHA 0001722055 Romano Kelly A C/O ATHIRA PHARMA, INC. 18706 NORTH CREEK PARKWAY, SUITE 104 BOTHELL WA 98011 1 0 0 0 Common Stock 2022-12-02 4 P 0 30000 3.29 A 38315 D The reported price is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $3.23 to $3.31, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares purchased at each separate price within such range. /s/ Glenna Mileson, Attorney-in-Fact for Kelly A. Romano 2022-12-06