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Prothena ( (PRTA) ) has provided an update.
On December 10, 2025, Paula Cobb announced her resignation from Prothena Corporation plc’s Board of Directors, effective December 31, 2025. Her departure is not due to any disagreements with the company’s operations, policies, or practices.
The most recent analyst rating on (PRTA) stock is a Hold with a $10.50 price target. To see the full list of analyst forecasts on Prothena stock, see the PRTA Stock Forecast page.
Spark’s Take on PRTA Stock
According to Spark, TipRanks’ AI Analyst, PRTA is a Neutral.
Prothena’s overall stock score is primarily impacted by its financial challenges, including negative profitability and cash flows. While technical indicators show some positive momentum, the valuation remains a significant concern due to ongoing losses. The recent corporate event provides a positive outlook for financial flexibility, but strategic improvements are necessary for long-term growth.
To see Spark’s full report on PRTA stock, click here.
More about Prothena
Average Trading Volume: 650,015
Technical Sentiment Signal: Sell
Current Market Cap: $531.3M
Find detailed analytics on PRTA stock on TipRanks’ Stock Analysis page.