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William P. Scully

Insider · 10% owner · PRTA

William P. Scully files insider transactions with the SEC as a 10% owner of Prothena Corp Public Ltd Co (PRTA). We hold 8 disclosed purchases and sales filed since 3 November 2014, 5 of them in the last 90 days.

  • Files forPRTA
  • Disclosed buys and sells8 in all, 5 in the last 90 days
  • Last disclosure3 September 2026

Positions held

2 posts we hold — a term names its own dates; a run of filings only says when they filed
  • Filed 18 December 2024 — 2 September 202610% owner · Prothena Corp Public Ltd Co (PRTA)26 Form 4 lines · source: SEC Form 4
  • Filed 30 October 2014 — 13 September 201610% owner · Metabolix (MBLX)16 Form 4 lines · source: SEC Form 4

Everything they disclosed

42 entries, newest first — one per disclosure report, one per Form 4 line

Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.