Bulls vs Bears
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Market sentiment signals for Prothena Corp (PRTA): analyst consensus, short interest, options flow and insider activity.
Analyst Consensus
Buy
14 analysts
Options Flow (P/C)
0.00
More calls — Bullish
Avg Consensus PT
$28
+232.0%
Highest Price Target
$80
+854.7%
Lowest Price Target
$4
-52.3%
Short Interest
18.8%
Declining — Bullish
Insider Activity (30d)
Net Seller
Short Interest — % of Float
| Date | Firm | Analyst & Accuracy | Upside / Downside | PT Change | Action | Rating |
|---|---|---|---|---|---|---|
| May 8, 2026 | Citizens | Jason N. Butler— | +138.7% | $19 → $20 | Maintained | Market Outperform |
| Feb 20, 2026 | RBC Capital | Brian Abrahams— | +43.2% | $11 → $12 | Maintained | Sector Perform |