X0306 4 2020-09-22 0 0001620463 Athira Pharma, Inc. ATHA 0001164426 EDELMAN JOSEPH C/O ATHIRA PHARMA, INC. 4000 MASON ROAD, SUITE 300 SEATTLE WA 98195 1 0 1 0 Common Stock 2020-09-22 4 C 0 1644785 0.00 A 2055981 I See Footnote Common Stock 2020-09-22 4 P 0 1058824 17.00 A 3114805 I See Footnote Series B Preferred Stock 2020-09-22 4 C 0 1644785 0.00 D Common Stock 1644785 0 I See Footnote Each share of Series B Preferred Stock automatically converted into one share of Common Stock immediately prior to the completion of the Issuer's initial public offering of Common Stock and had no expiration date. The securities are directly held by Perceptive Life Sciences Master Fund Ltd. (the "Master Fund"). Perceptive Advisors LLC (the "Advisor") serves as the investment manager of Master Fund. Joseph Edelman is the managing member of the Advisor. Mr. Edelman disclaims, for purposes of Section 16 of the Securities Exchange Act of 1934, beneficial ownership of such securities, except to the extent of his indirect pecuniary interest therein, and this report shall not be deemed an admission that Mr. Edelman is the beneficial owner of such securities for purposes of Section 16 or for any other purposes. /s/ Glenna Mileson, attorney-in-fact on behalf of Joseph Edelman 2020-09-22