PRTA • SEC Gov • Feb 27, 2025 PRTA : 10-K : Periodic Financial Reports Download Exhibits Related Filings from PRTA 10-K EX-31.1 EX-31.2 EX-32.1 EX-10.11(B) EX-19.1 EX-21.1 EX-23.1 EX-4.2