← Back to Analyst Consensus 
PRTA Buy
PROTHENA CORP PUBLIC LTD CO
Current Price —
Implied Upside —
Analysts 12
30-Day Momentum
▲ 0 upgrades / ▼ 0 downgrades / 0 reiterations from 0 firms
Next Earnings
Oct 29, 2026 (3 days)
Rating Timeline
| Date ▼ | Firm | Action | From → To Rating | Price Target | Firm Rating |
|---|---|---|---|---|---|
| May 8, 2026 | Citizens | maintain | Market Outperform → Market Outperform | — | 47% |
| Feb 20, 2026 | RBC Capital | maintain | Sector Perform → Sector Perform | $12 | 55% |
| Dec 1, 2025 | Citizens | maintain | Market Outperform → Market Outperform | $19 | 47% |
| Nov 7, 2025 | HC Wainwright & Co. | maintain | Buy → Buy | $30 | 44% |
| Nov 7, 2025 | RBC Capital | maintain | Sector Perform → Sector Perform | $11 | 55% |
| Oct 28, 2025 | Piper Sandler | maintain | Overweight → Overweight | $36 | 54% |
| Oct 7, 2025 | HC Wainwright & Co. | maintain | Buy → Buy | $20 | 44% |
| Sep 2, 2025 | JMP Securities | maintain | Market Outperform → Market Outperform | $11 | 53% |
| Aug 28, 2025 | Piper Sandler | maintain | Overweight → Overweight | $15 | 54% |
| Aug 28, 2025 | Chardan Capital | maintain | Buy → Buy | $18 | 47% |
| Aug 5, 2025 | RBC Capital | maintain | Sector Perform → Sector Perform | $10 | 55% |
| Aug 5, 2025 | HC Wainwright & Co. | reiterate | Buy → Buy | $14 | 44% |
| Aug 5, 2025 | Chardan Capital | maintain | Buy → Buy | $18 | 47% |
| Jun 20, 2025 | Cantor Fitzgerald | reiterate | Neutral → Neutral | $0 | 50% |
| May 28, 2025 | B of A Securities | downgrade | Neutral → Underperform | $4 | 53% |
| May 27, 2025 | Oppenheimer | downgrade | Outperform → Perform | $0 | 52% |
| May 27, 2025 | Piper Sandler | maintain | Overweight → Overweight | $81 | 54% |
| May 27, 2025 | JMP Securities | maintain | Market Outperform → Market Outperform | $29 | 53% |
| May 27, 2025 | Chardan Capital | maintain | Buy → Buy | $18 | 47% |
| May 27, 2025 | HC Wainwright & Co. | maintain | Buy → Buy | $14 | 44% |
| May 9, 2025 | HC Wainwright & Co. | maintain | Buy → Buy | $30 | 44% |
| May 9, 2025 | JMP Securities | maintain | Market Outperform → Market Outperform | $78 | 53% |
| May 9, 2025 | Chardan Capital | maintain | Buy → Buy | $40 | 47% |
| Feb 26, 2025 | Piper Sandler | maintain | Overweight → Overweight | $110 | 54% |
| Feb 24, 2025 | HC Wainwright & Co. | reiterate | Buy → Buy | $48 | 44% |
| Feb 21, 2025 | RBC Capital | maintain | Sector Perform → Sector Perform | $20 | 55% |
| Feb 21, 2025 | Cantor Fitzgerald | reiterate | Overweight → Overweight | $0 | 50% |
| Feb 21, 2025 | Citizens Capital Markets | reiterate | Market Outperform → Market Outperform | $80 | 49% |
| Feb 21, 2025 | HC Wainwright & Co. | reiterate | Buy → Buy | $48 | 44% |
| Feb 21, 2025 | Chardan Capital | maintain | Buy → Buy | $40 | 47% |
| Feb 7, 2025 | Oppenheimer | maintain | Outperform → Outperform | $62 | 52% |
| Dec 20, 2024 | HC Wainwright & Co. | reiterate | Buy → Buy | $48 | 44% |
| Dec 20, 2024 | Chardan Capital | initiate | — → Buy | $40 | 47% |
| Dec 19, 2024 | B of A Securities | maintain | Neutral → Neutral | $22 | 53% |
| Nov 13, 2024 | HC Wainwright & Co. | reiterate | Buy → Buy | $84 | 44% |
| Oct 1, 2024 | B of A Securities | maintain | Neutral → Neutral | $31 | 53% |
| Oct 1, 2024 | HC Wainwright & Co. | reiterate | Buy → Buy | $84 | 44% |
| Sep 30, 2024 | Cantor Fitzgerald | reiterate | — → Overweight | $0 | 50% |
| Aug 14, 2024 | Oppenheimer | maintain | Outperform → Outperform | $62 | 52% |
| Aug 12, 2024 | Cantor Fitzgerald | reiterate | — → Overweight | $0 | 50% |
| Aug 9, 2024 | RBC Capital | maintain | Sector Perform → Sector Perform | $24 | 55% |
| Jun 26, 2024 | RBC Capital | reiterate | Sector Perform → Sector Perform | $28 | 55% |
| May 9, 2024 | JMP Securities | maintain | Market Outperform → Market Outperform | $83 | 53% |
| May 9, 2024 | HC Wainwright & Co. | maintain | Buy → Buy | $84 | 44% |
| Apr 10, 2024 | Cantor Fitzgerald | reiterate | — → Overweight | $0 | 50% |
| Mar 13, 2024 | HC Wainwright & Co. | maintain | Buy → Buy | $90 | 44% |
| Feb 20, 2024 | Oppenheimer | maintain | Outperform → Outperform | $80 | 52% |
| Feb 16, 2024 | JMP Securities | maintain | Market Outperform → Market Outperform | $85 | 53% |
| Feb 16, 2024 | RBC Capital | maintain | Sector Perform → Sector Perform | $35 | 55% |
| Jan 30, 2024 | B of A Securities | downgrade | Buy → Neutral | $38 | 53% |
Price Target Trend
May 26, 2026 Oct 26, 2026
EPS Estimates
0q —
+1y —
0y —
+1q —
Cross-Platform Signals
No cross-platform signals in the last 90 days