Filing Manager
EcoR1 Capital, LLC
Reporting Manager
EcoR1 Capital, LLC
Symbol
PRTA
Disclosed Ownership
0 shares
Ownership
0%
Form type
SCHEDULE 13D/A
Date filed
5/29/2025, 09:08 PM
Date of event
May 27, 2025
Previous filing
May 6, 2025

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
EcoR1 Capital, LLC 0% 0 0 0 /s/ Oleg Nodelman Manager 0001587114
Oleg Nodelman 0% 0 0 0 /s/ Oleg Nodelman Reporting person 0001454385
EcoR1 Capital Fund Qualified, L.P. 0% 0 0 0 /s/ Oleg Nodelman Manager of the General Partner, EcoR1 Capital, LLC 0001598292