Filing Manager
SCULLY WILLIAM P
Reporting Manager
SCULLY WILLIAM P
Symbol
PRTA
Shares outstanding
53,896,388 shares
Disclosed Ownership
5,281,846 shares
Ownership
9.8%
Form type
SCHEDULE 13G/A
Filing time
12 Nov 2025, 15:47:28 UTC
Date of event
30 Sep 2025
Previous filing
13 Aug 2025

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
SCULLY WILLIAM P 9.8% 5,281,846 763,000 4,518,846 Diana L. Hayes Attorney-in-fact