Prothena Corporation plc (PRTA)
NASDAQ: PRTA · Real-Time Price · USD
8.20
-0.05 (-0.61%)
At close: Oct 23, 2026, 4:00 PM EDT
9.10
+0.90 (10.98%)
After-hours: Oct 23, 2026, 7:30 PM EDT
Prothena Corporation Analyst Ratings
Ratings History
| Analyst | Firm | Rating | Rating | Action | Price Target | Upside | Date |
|---|---|---|---|---|---|---|---|
| Bank of America Securities | Bank of America Securities | Sell Maintains n/a | Sell | Maintains | n/a | n/a | Aug 14, 2026 |
| Piper Sandler | Piper Sandler | Buy Maintains $36 | Buy | Maintains | $36 | +339.02% | Aug 7, 2026 |
| RBC Capital | RBC Capital | Hold Maintains $13 | Hold | Maintains | $13 | +58.54% | Aug 7, 2026 |
| H.C. Wainwright | H.C. Wainwright | Buy Reiterates $30 | Buy | Reiterates | $30 | +265.85% | Aug 7, 2026 |
| Citizens JMP | Citizens JMP | Buy Maintains $19 → $20 | Buy | Maintains | $19 → $20 | +143.90% | May 8, 2026 |