Prothena Corp (PRTA) reports insider trades
- William P Scully bought 100,000 shares on 10/13/2026 at $8.35
- William P Scully bought 10,000 shares on 10/14/2026 at $8.46
- Indirect ownership includes 529,000 shares via spouse
William P Scully, reporting
PRTA
PROTHENA CORP PUBLIC LTD CO SEC filings
Every EDGAR filing for PROTHENA CORP PUBLIC LTD CO (PRTA), newest first, with AI summaries and stories.
- Ticker
- PRTA
- CIK
- 1559053
- Sector
- Biotech and pharma
- Latest filing
- 3d
Next: earnings expected ~Nov 9 · 10-Q expected ~Nov 9 (deadline Nov 9)
Filings
Every filing, newest first. MAJOR and NOTABLE filings lead the app's feed; ROUTINE ones are kept here.
ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE Prothena Corp (PRTA) reports stock transactions
- William P Scully bought 125,000 shares at $8.40
- William P Scully bought 90,000 shares at $8.57
- Scully beneficially owns 529,000 shares via spouse
William P Scully, reporting
ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE Prothena Corp sells shares
- 100,000 shares sold at $8.57
- 314,000 shares held by spouse
- 927,000 shares disposed of
William P Scully
MAJOR8-KPROTHENA CORP PUBLIC LTD COPRTALIVE Prothena Corp reports executive departure
- Chad J. Swanson resigns as CDO effective Oct 9, 2026
- He joins a strategic partner's leadership team
- Resignation follows new role with company partnership
ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE William P Scully, insider filing for PRTA
William P Scully, reporting
ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE William P Scully, insider filing for PRTA
William P Scully, reporting
ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE William P Scully, insider filing for PRTA
William P Scully, reporting
ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE William P Scully, insider filing for PRTA
William P Scully, reporting
ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE William P Scully, insider filing for PRTA
William P Scully, reporting
ROUTINESCHEDULE 13G/APROTHENA CORP PUBLIC LTD COPRTALIVE Ownership stake disclosure by Todd W. Fennell (amended)
Todd W. Fennell, filed by
ROUTINE3PROTHENA CORP PUBLIC LTD COPRTALIVE 2 insider filings
Todd W. Fennell, new insider at PRTA
Show all 2
- 3New insider at PRTA
- 4Insider filing for PRTA
Todd W. Fennell, reporting
ROUTINESCHEDULE 13G/APROTHENA CORP PUBLIC LTD COPRTALIVE Ownership stake disclosure by Todd W. Fennell (amended)
Todd W. Fennell, filed by
ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE William P Scully, insider filing for PRTA
William P Scully, reporting
ROUTINE3PROTHENA CORP PUBLIC LTD COPRTALIVE Todd W. Fennell, new insider at PRTA
Todd W. Fennell, reporting
ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE William P Scully, insider filing for PRTA
William P Scully, reporting
NOTABLE10-QPROTHENA CORP PUBLIC LTD COPRTALIVE ROUTINE8-KPROTHENA CORP PUBLIC LTD COPRTALIVE ROUTINESCHEDULE 13G/APROTHENA CORP PUBLIC LTD COPRTALIVE Ownership stake disclosure by FMR LLC (amended)
FMR LLC, filed by
ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE 8 insider filings
Wagner M. Zago, insider filing for PRTA
Show all 8
- 4Insider filing for PRTA
- 4Insider filing for PRTA
- 4Insider filing for PRTA
- 4Insider filing for PRTA
- 4Insider filing for PRTA
- 4Insider filing for PRTA
- 4Insider filing for PRTA
- 4Insider filing for PRTA
Wagner M. Zago, reporting
ROUTINE144PROTHENA CORP PUBLIC LTD COPRTALIVE 2 Form 144 notices
Anne Evans Kingston, planned sale of PRTA shares
Show all 2
- 144Planned insider sale of PRTA shares
- 144Planned insider sale of PRTA shares
Anne Evans Kingston, reporting
ROUTINESCHEDULE 13G/APROTHENA CORP PUBLIC LTD COPRTALIVE Ownership stake disclosure by BlackRock, Inc. (amended)
BlackRock, Inc., filed by
ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE William P Scully, insider filing for PRTA
William P Scully, reporting
ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE William P Scully, insider filing for PRTA
William P Scully, reporting
ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE William P Scully, insider filing for PRTA
William P Scully, reporting
ROUTINE3PROTHENA CORP PUBLIC LTD COPRTALIVE Michael John Isaacs, new insider at PRTA
Michael John Isaacs, reporting
ROUTINE144PROTHENA CORP PUBLIC LTD COPRTALIVE Michael J Malecek, planned sale of PRTA shares
Michael J Malecek, reporting
ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE William P Scully, insider filing for PRTA
William P Scully, reporting
ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE William P Scully, insider filing for PRTA
William P Scully, reporting
ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE William P Scully, insider filing for PRTA
William P Scully, reporting
ROUTINE4PROTHENA CORP PUBLIC LTD COPRTALIVE 6 insider filings
Daniel G Welch, insider filing for PRTA
Show all 6
- 4Insider filing for PRTA
- 4Insider filing for PRTA
- 4Insider filing for PRTA
- 4Insider filing for PRTA
- 4Insider filing for PRTA
- 4Insider filing for PRTA
Daniel G Welch, reporting
ROUTINE8-KPROTHENA CORP PUBLIC LTD COPRTALIVE ROUTINESCHEDULE 13G/APROTHENA CORP PUBLIC LTD COPRTALIVE Ownership stake disclosure by Rubric Capital Management LP (amended)
Rubric Capital Management LP, filed by
ROUTINE3PROTHENA CORP PUBLIC LTD COPRTALIVE William P Scully, new insider at PRTA
William P Scully, reporting
ROUTINESCHEDULE 13G/APROTHENA CORP PUBLIC LTD COPRTALIVE Ownership stake disclosure by William P Scully (amended)
William P Scully, filed by
NOTABLE10-QPROTHENA CORP PUBLIC LTD COPRTALIVE ROUTINE8-KPROTHENA CORP PUBLIC LTD COPRTALIVE