Prothena Corporation plc (PRTA)
NASDAQ: PRTA · Real-Time Price · USD
11.51
+0.72 (6.67%)
At close: Apr 28, 2026, 4:00 PM EDT
11.49
-0.02 (-0.17%)
After-hours: Apr 28, 2026, 5:01 PM EDT
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 65.07% from the current stock price of 11.51.
Analyst Consensus: Buy
* Price targets were last updated on Feb 20, 2026.
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 | Nov '25 | Dec '25 | Jan '26 | Feb '26 | Mar '26 | Apr '26 |
|---|---|---|---|---|---|---|
| Strong Buy | 3 | 3 | 3 | 3 | 3 | 3 |
| Buy | 2 | 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 | 9 | 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 | +4.26% | Feb 20, 2026 |
| Citizens | Citizens | Buy Maintains $11 → $19 | Buy | Maintains | $11 → $19 | +65.07% | Dec 1, 2025 |
| HC Wainwright & Co. | HC Wainwright & Co. | Strong Buy Maintains $20 → $30 | Strong Buy | Maintains | $20 → $30 | +160.64% | Nov 7, 2025 |
| RBC Capital | RBC Capital | Hold Maintains $10 → $11 | Hold | Maintains | $10 → $11 | -4.43% | Nov 7, 2025 |
| Piper Sandler | Piper Sandler | Buy Maintains $15 → $36 | Buy | Maintains | $15 → $36 | +212.77% | Oct 28, 2025 |
Financial Forecast
Revenue This Year
117.31M
from 9.68M
Increased by 1,111.38%
Revenue Next Year
26.93M
from 117.31M
Decreased by -77.05%
EPS This Year
0.26
from -4.53
EPS Next Year
-1.03
from 0.26
Revenue Forecast
| Revenue | 2026 | 2027 | 2028 | 2029 | 2030 | 2031 | 2032 | 2033 |
|---|---|---|---|---|---|---|---|---|
| High | 157.6M | 105.0M | ||||||
| Avg | 117.3M | 26.9M | ||||||
| Low | 98.0M | n/a |
Revenue Growth
| Revenue Growth | 2026 | 2027 | 2028 | 2029 | 2030 | 2031 | 2032 | 2033 |
|---|---|---|---|---|---|---|---|---|
| High | 1,526.9% | -10.5% | ||||||
| Avg | 1,111.4% | -77.0% | ||||||
| Low | 912.0% | - |
EPS Forecast
| EPS | 2026 | 2027 | 2028 | 2029 | 2030 | 2031 | 2032 | 2033 |
|---|---|---|---|---|---|---|---|---|
| High | 1.90 | -0.54 | ||||||
| Avg | 0.26 | -1.03 | ||||||
| Low | -1.48 | -1.37 |
EPS Growth
| EPS Growth | 2026 | 2027 | 2028 | 2029 | 2030 | 2031 | 2032 | 2033 |
|---|---|---|---|---|---|---|---|---|
| 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.