PERCEPTIVE ADVISORS LLC - 23 Dec 2025 SCHEDULE 13D/A Report for Athira Pharma, Inc. Common Stock, $0.0001 par value (ATHA)

Filing Manager
PERCEPTIVE ADVISORS LLC
Reporting Manager
Joseph Edelman
Security
Athira Pharma, Inc. Common Stock, $0.0001 par value
Symbol
ATHA
Shares outstanding
9.3M shares
Disclosed Ownership
1.87M shares
Ownership
20.1%
Form type
SCHEDULE 13D/A
Filing time
23 Dec 2025, 17:16:56 UTC
Date of event
23 Dec 2025
Previous filing
22 Dec 2025
SEC
View on sec.gov

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Perceptive Advisors LLC 19.99% 1.86M 0 1.86M /s/ Joseph Edelman Joseph Edelman, Managing Member 0001224962
Joseph Edelman 20.1% 1.87M 0 1.87M /s/ Joseph Edelman Joseph Edelman 0001164426
Perceptive Life Sciences Master Fund, Ltd. 16.4% 1.53M 0 1.53M /s/ Joseph Edelman Joseph Edelman, Managing Member 0001249675
Perceptive Xontogeny Venture Fund II, LP 3.5% 330K 0 330K /s/ Joseph Edelman Joseph Edelman, Managing Partner 0001851820