Prothena Corporation plc (PRTA)
NASDAQ: PRTA · Real-Time Price · USD
9.75
-0.43 (-4.22%)
Jun 1, 2026, 2:13 PM EDT - Market open
Prothena Corporation Stock Forecast
Stock Price Forecast
According to 6 analysts polled by S&P Global, Prothena Corporation stock has a consensus rating of "Hold" and an average price target of $21.4. The average 1-year stock price forecast is 119.49% higher than the current stock price, while the lowest is $8.00 (-17.95%) and the highest is $36 (+269.23%).
Price Target: $21.4 (+119.49%)
Analyst Consensus: Hold
Analyst Ratings
The average analyst rating for Prothena Corporation stock is "Hold". This means that analysts believe this stock is likely to perform similarly to the overall market.
Recommendation Trends
| Rating | Oct '25 | Nov '25 | Dec '25 | Feb '26 | Mar '26 | May '26 |
|---|---|---|---|---|---|---|
| Strong Buy | 1 | 2 | 2 | 2 | 1 | 1 |
| Buy | 3 | 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 | 7 | 7 | 7 | 7 | 6 | 6 |
Latest Forecasts
| Analyst | Firm | Rating | Rating | Action | Price Target | Upside | Date |
|---|---|---|---|---|---|---|---|
| RBC Capital | RBC Capital | Hold Maintains $12 → $13 | Hold | Maintains | $12 → $13 | +33.33% | May 9, 2026 |
| H.C. Wainwright | H.C. Wainwright | Buy Maintains $30 | Buy | Maintains | $30 | +207.69% | May 8, 2026 |
| Piper Sandler | Piper Sandler | Buy Maintains $36 | Buy | Maintains | $36 | +269.23% | May 8, 2026 |
| Citizens JMP | Citizens JMP | Buy Maintains $19 → $20 | Buy | Maintains | $19 → $20 | +105.13% | May 8, 2026 |
| Bank of America Securities | Bank of America Securities | Sell Reiterates $8 | Sell | Reiterates | $8 | -17.95% | May 8, 2026 |
Financial Forecast
Revenue This Year
117.84M
from 9.68M
Increased by 1,116.85%
Revenue Next Year
33.66M
from 117.84M
Decreased by -71.44%
EPS This Year
0.30
from -4.53
EPS Next Year
-1.19
from 0.30
Revenue Forecast
| Revenue | 2026 | 2027 | 2028 | 2029 | 2030 | 2031 | 2032 | 2033 |
|---|---|---|---|---|---|---|---|---|
| High | 157.6M | 105.0M | ||||||
| Avg | 117.8M | 33.7M | ||||||
| Low | 98.0M | n/a |
Revenue Growth
| Revenue Growth | 2026 | 2027 | 2028 | 2029 | 2030 | 2031 | 2032 | 2033 |
|---|---|---|---|---|---|---|---|---|
| High | 1,526.9% | -10.9% | ||||||
| Avg | 1,116.9% | -71.4% | ||||||
| Low | 912.0% | - |
EPS Forecast
| EPS | 2026 | 2027 | 2028 | 2029 | 2030 | 2031 | 2032 | 2033 |
|---|---|---|---|---|---|---|---|---|
| High | 1.90 | -0.87 | ||||||
| Avg | 0.30 | -1.19 | ||||||
| Low | -1.48 | -1.56 |
EPS Growth
| EPS Growth | 2026 | 2027 | 2028 | 2029 | 2030 | 2031 | 2032 | 2033 |
|---|---|---|---|---|---|---|---|---|
| High | - | - | ||||||
| Avg | - | - | ||||||
| Low | - | - |
Sources: Price targets and consensus ratings provided by S&P Global Market Intelligence. Historical ratings and analyst data provided by TipRanks. Financial forecast data provided by Finnhub. The data is sourced from Wall Street analysts. Data sources.