Prothena files initial beneficial ownership statement for Todd W. Fennell
PRTA•Form 3 filing for Todd W. Fennell
Prothena filed a Form 3 initial beneficial ownership statement dated Aug. 18, 2026 for Todd W. Fennell.
- Fennell was reported as a 10% owner.
- The filing stated no securities were beneficially owned, with no non-derivative or derivative holdings reported.




