SEC Filing Update: #PRTA Prothena Corporation plc : $9.17

Sector: Healthcare | YTD: 🔽 -0.43% The SEC disclosed Today (19-AUG-2026) that Fennell Todd W. has INCREASED #PRTA Shares by 4.75% 🟢 * Previous Holdings: 5.01M Shares * Current Holdings: 5.25M Shares * Increase+238.00K * Increased(%)+4.75% * Ownership: 10.2% * Estimated Investment Value: $2.13M https://www.thinksabio.com/reports/isr/PRTA Fennell Todd W. increased holdings in PRTA from 5,010,846 shares to 5,248,846 shares, representing a gain of 238,000 shares and a 10.2% ownership stake in the healthcare company.