Prothena Corporation plc (PRTA)
NASDAQ: PRTA · Real-Time Price · USD
8.16
-0.07 (-0.85%)
At close: Nov 13, 2026, 4:00 PM EST
8.16
0.00 (0.00%)
After-hours: Nov 13, 2026, 7:45 PM EST
Prothena Corporation Stock Forecast
Stock Price Forecast
According to 7 analysts polled by S&P Global, Prothena Corporation stock has a consensus rating of "Buy" and an average price target of $21.4. The average 1-year stock price forecast is 162.25% higher than the current stock price, while the lowest is $8.00 (-1.96%) and the highest is $36 (+341.18%).
Price Target: $21.4 (+162.25%)
Analyst Consensus: Buy
Price Target
ChartAnalyst Ratings
The average analyst rating for Prothena Corporation stock is "Buy". This means that analysts believe this stock is likely to outperform the market over the next twelve months.
Recommendation Trends
| Rating | Mar '26 | May '26 | Jul '26 | Aug '26 | Oct '26 | Nov '26 |
|---|---|---|---|---|---|---|
| Strong Buy | 1 | 1 | 1 | 1 | 2 | 2 |
| Buy | 2 | 2 | 2 | 2 | 2 | 2 |
| Hold | 2 | 2 | 2 | 2 | 2 | 2 |
| Sell | 1 | 1 | 1 | 1 | 1 | 1 |
| Strong Sell | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 6 | 6 | 6 | 6 | 7 | 7 |
Latest Forecasts
| Analyst | Firm | Rating | Rating | Action | Price Target | Upside | Date |
|---|---|---|---|---|---|---|---|
| RBC Capital | RBC Capital | Hold Maintains $13 | Hold | Maintains | $13 | +59.31% | Nov 6, 2026 |
| Piper Sandler | Piper Sandler | Buy Maintains $36 | Buy | Maintains | $36 | +341.18% | Nov 6, 2026 |
| Bank of America Securities | Bank of America Securities | Sell Reiterates $8 | Sell | Reiterates | $8 | -1.96% | Nov 6, 2026 |
| H.C. Wainwright | H.C. Wainwright | Buy Maintains $30 | Buy | Maintains | $30 | +267.65% | Nov 6, 2026 |
Financial Forecast
Revenue This Year
84.77M
from 9.68M
Increased by 775.41%
Revenue Next Year
24.54M
from 84.77M
Decreased by -71.05%
EPS This Year
0.64
from -3.98
EPS Next Year
-1.32
from 0.64
EPS and Forward PE are based on non-GAAP adjusted numbers.