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Flock — Smart-money disclosures, made readable

Prothena Corp PLC

PRTANASDAQ · US

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Holders

BlackRock
13F filer
$79.6M
3,857,079 sh
as-of 30 Jun 2024Stale
Two Sigma Investments
13F filer
$11.7M
1,205,978 sh
as-of 31 Mar 2026Quarterly
Renaissance Technologies
13F filer
$5.9M
607,515 sh
as-of 31 Mar 2026Quarterly
Scully William P
US insider
$439.4K
50,000 sh
as-of 22 Aug 2026Live

Ownership

Ownership data not yet available for this security.

Disclosure timeline

ACQUIREDT+2
Scully William P
Prothena Corp PLC · NASDAQ
+50,000 sh · $439.4K
Filed 21 Aug 2026SEC Form 4view source
DISCLOSEDQuarterly
Renaissance Technologies
Prothena Corp PLC · NASDAQ
607,515 sh · $5.9M
Filed 31 Mar 2026SEC 13Fview source
DISCLOSEDQuarterly
Two Sigma Investments
Prothena Corp PLC · NASDAQ
1,205,978 sh · $11.7M
Filed 31 Mar 2026SEC 13Fview source
DISCLOSEDStale
BlackRock
Prothena Corp PLC · NASDAQ
3,857,079 sh · $79.6M
Filed 30 Jun 2024SEC 13Fview source

Announcements

No announcements on record for this security.

PRTANASDAQ · US

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Latest filing21 Aug 2026T+2

4 disclosed holders · 4 disclosures · 0 announcements

Ownership

Ownership data not yet available for this security.

Announcements

No announcements on record for this security.