Reporting owner · Q3 2026 · CIK 1045463

Scully William P: insider trades.

Scully William P reported 10 non-derivative transactions on 8 SEC ownership filings in Q3 2026: 7 open-market purchases ($4.2M) and 0 sales, across 1 company.

Transactions
10
Purchases (P)
7
Sales (S)
0
Companies
1
Name as filed
SCULLY WILLIAM P

Companies

CompanyRelationshipTransactions
Prothena Corp Public Ltd Co (PRTA)TenPercentOwner10

Transactions

10 non-derivative rows. Shares and prices as filed.
DateCompanyCodeSharesPriceOwned afterFiling
2026-09-29Prothena Corp Public Ltd CoP162,000$8.68214,000Form 4
2026-09-28Prothena Corp Public Ltd CoP103,500$8.6187,000Form 4
2026-09-18Prothena Corp Public Ltd CoP100,000$8.43927,000Form 4
2026-09-02Prothena Corp Public Ltd CoP27,000$9.47827,000Form 4
2026-08-20Prothena Corp Public Ltd CoP50,000$8.79800,000Form 4
2026-08-18Prothena Corp Public Ltd CoG627,553$0750,000Form 4
2026-08-17Prothena Corp Public Ltd CoG336,000$01,377,553Form 4
2026-08-10Prothena Corp Public Ltd CoG251,553$01,041,553Form 4
2026-08-07Prothena Corp Public Ltd CoP3,500$8.6283,500Form 4
2026-08-07Prothena Corp Public Ltd CoP34,000$8.62790,000Form 4

Questions

What stock did Scully William P buy or sell?

Scully William P reported 10 non-derivative transactions on 8 SEC ownership filings in Q3 2026: 7 open-market purchases ($4.2M) and 0 sales, across 1 company.

Is Scully William P the same person as other filers with this name?

This page covers SEC CIK 1045463 only. The SEC assigns each reporting owner a CIK, and people with the same name have different CIKs.

Source: SEC Insider Transactions Data Sets, Q3 2026. Reported as filed; we do not assess intent, performance or compliance. All filings for this CIK on SEC.gov.

Plain-text version for agents and LLMs: /insiders/scully-william-p-1045463.md

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