# Prothena (PRTA) — Analyst Forecast

PRTA · NASDAQ · Stock

Canonical page: https://www.lighthorse.io/tickers/prta/forecast

## Analyst consensus

| Consensus | Buy | Hold | Sell | Analysts |
| --- | --- | --- | --- | --- |
| Buy | 3 | 2 | 1 | 6 |

## Recent analyst ratings

| Date | Firm | Action | Rating | Price target |
| --- | --- | --- | --- | --- |
| May 8, 2026 | Citizens | Maintained | Market Outperform | $20.00 |
| Feb 20, 2026 | RBC Capital | Maintained | Sector Perform | $12.00 |
| Dec 1, 2025 | Citizens | Maintained | Market Outperform | $19.00 |
| Nov 7, 2025 | RBC Capital | Maintained | Sector Perform | $11.00 |
| Nov 7, 2025 | HC Wainwright & Co. | Maintained | Buy | $30.00 |
| Oct 28, 2025 | Piper Sandler | Maintained | Overweight | $36.00 |
| Oct 7, 2025 | HC Wainwright & Co. | Maintained | Buy | $20.00 |
| Sep 2, 2025 | JMP Securities | Maintained | Market Outperform | $11.00 |
| Aug 28, 2025 | Chardan Capital | Maintained | Buy | $18.00 |
| Aug 28, 2025 | Piper Sandler | Maintained | Overweight | $15.00 |
| Aug 5, 2025 | Chardan Capital | Maintained | Buy | $18.00 |
| Aug 5, 2025 | HC Wainwright & Co. | Maintained | Buy | $14.00 |
| Aug 5, 2025 | RBC Capital | Maintained | Sector Perform | $10.00 |
| Jun 20, 2025 | Cantor Fitzgerald | Maintained | Neutral | — |
| May 28, 2025 | B of A Securities | Downgraded | Neutral → Underperform | $4.00 |
| May 27, 2025 | HC Wainwright & Co. | Maintained | Buy | $14.00 |
| May 27, 2025 | Chardan Capital | Maintained | Buy | $18.00 |
| May 27, 2025 | Piper Sandler | Maintained | Overweight | $81.00 |
| May 27, 2025 | JMP Securities | Maintained | Market Outperform | $29.00 |
| May 27, 2025 | Oppenheimer | Downgraded | Outperform → Perform | — |

## Frequently Asked Questions

### Is PRTA a buy, sell, or hold?

Analysts covering Prothena currently average a Buy rating: 3 buy, 2 hold and 1 sell, from 6 analysts. Ratings reflect analyst opinion, not investment advice.

### What is the latest analyst rating on PRTA?

On May 8, 2026, Citizens maintained Prothena at Market Outperform with a price target of $20.00.

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Analyst ratings and price targets are the opinions of third-party research firms, not of Light Horse Securities. They are estimates about an uncertain future, are frequently wrong, and are neither a recommendation nor a prediction of actual results.

This page is for informational purposes only. Nothing on it is a recommendation, solicitation or offer to buy or sell any security, nor investment, legal or tax advice. Light Horse Securities Inc does not verify third-party data and is not responsible for its accuracy, completeness or timeliness.

Data provided by [AInvest](https://www.ainvest.com).