William P Scully, 10% Owner, on May 22, 2026, executed a purchase for 100,000 shares in Prothena (PRTA) for $981,300. Following the Form 4 filing with the SEC, Scully has control over a total of 968,000 ordinary shares of the company, with 836,000 shares held directly and 132,000 controlled indirectly.
SEC Filing:
https://www.sec.gov/Archives/edgar/data/1559053/000104546326000004/xslF345X05/primary_doc.xml
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