Prothena Corporation plc (PRTA)
NASDAQ: PRTA · Real-Time Price · USD
8.67
+0.03 (0.35%)
At close: Feb 27, 2026, 4:00 PM EST
9.15
+0.48 (5.54%)
After-hours: Feb 27, 2026, 7:54 PM EST
Prothena Corporation Stock Forecast
Stock Price Forecast
The 7 analysts with 12-month price forecasts for Prothena Corporation stock have an average target of 19, with a low estimate of 4.00 and a high estimate of 36. The average target predicts an increase of 119.15% from the current stock price of 8.67.
Analyst Consensus: Buy
Analyst Ratings
The average analyst rating for Prothena Corporation stock from 9 stock analysts is "Buy". This means that analysts believe this stock is likely to outperform the market over the next twelve months.
Recommendation Trends
| Rating | Sep '25 | Oct '25 | Nov '25 | Dec '25 | Jan '26 | Feb '26 |
|---|---|---|---|---|---|---|
| Strong Buy | 3 | 3 | 3 | 3 | 3 | 3 |
| Buy | 3 | 2 | 2 | 2 | 2 | 2 |
| Hold | 3 | 3 | 3 | 3 | 3 | 3 |
| Sell | 1 | 1 | 1 | 1 | 1 | 1 |
| Strong Sell | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 10 | 9 | 9 | 9 | 9 | 9 |
Latest Forecasts
| Analyst | Firm | Rating | Rating | Action | Price Target | Upside | Date |
|---|---|---|---|---|---|---|---|
| RBC Capital | RBC Capital | Hold Maintains $11 → $12 | Hold | Maintains | $11 → $12 | +38.41% | Feb 20, 2026 |
| Citizens | Citizens | Buy Maintains $11 → $19 | Buy | Maintains | $11 → $19 | +119.15% | Dec 1, 2025 |
| HC Wainwright & Co. | HC Wainwright & Co. | Strong Buy Maintains $20 → $30 | Strong Buy | Maintains | $20 → $30 | +246.02% | Nov 7, 2025 |
| RBC Capital | RBC Capital | Hold Maintains $10 → $11 | Hold | Maintains | $10 → $11 | +26.87% | Nov 7, 2025 |
| Piper Sandler | Piper Sandler | Buy Maintains $15 → $36 | Buy | Maintains | $15 → $36 | +315.22% | Oct 28, 2025 |
Financial Forecast
Revenue This Year
144.85M
from 9.68M
Increased by 1,395.77%
Revenue Next Year
34.00M
from 144.85M
Decreased by -76.53%
EPS This Year
0.61
from -4.53
EPS Next Year
-0.89
from 0.61
Revenue Forecast
| Revenue | 2026 | 2027 | 2028 | 2029 | 2030 |
|---|---|---|---|---|---|
| High | 267.8M | 105.0M | |||
| Avg | 144.9M | 34.0M | |||
| Low | 98.0M | n/a |
Revenue Growth
| Revenue Growth | 2026 | 2027 | 2028 | 2029 | 2030 |
|---|---|---|---|---|---|
| High | 2,664.9% | -27.5% | |||
| Avg | 1,395.8% | -76.5% | |||
| Low | 912.0% | - |
EPS Forecast
| EPS | 2026 | 2027 | 2028 | 2029 | 2030 |
|---|---|---|---|---|---|
| High | 4.20 | -0.38 | |||
| Avg | 0.61 | -0.89 | |||
| Low | -1.59 | -1.29 |
EPS Growth
| EPS Growth | 2026 | 2027 | 2028 | 2029 | 2030 |
|---|---|---|---|---|---|
| High | - | - | |||
| Avg | - | - | |||
| Low | - | - |
Sources: Price targets and analyst ratings provided by Benzinga. Revenue and EPS forecast data provided by Finnhub. The data is sourced from Wall Street analysts. Data disclaimer.