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Prothena Corporation plc

PRTANASDAQHealthcareBiotechnology

$8.20Today:- (-)1Y −15.49%

As of Oct 23, 2026 close

Market cap
$427.59M
P/E (TTM)
-
Forward P/E
-
Dividend yield
-
52-week range
$7.73$11.80
Volume (live)
-
Avg. volume (3M)
552.87K

Prothena Corporation plc (PRTA) Analyst Forecast

Analyst consensus ratings, 12-month price targets, and expert recommendations for Prothena Corporation plc stock.

Analyst Consensus Rating

Investment consensus from 4 professional research analysts

Consensus Rating

Buy
Based on 4 unique analysts
Low Confidence2.0:1 Buy/Sell

Average Price Target

$26.33
+221.10% upside

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Strong Sell
Sell
Hold
Buy
Strong Buy

Latest PRTA Analyst Ratings & Recommendations

Recent analyst recommendations with rating changes and price target updates (last 90 days)

Tazeen Ahmad
BofA Securities
SellMaintains
-
Andrew Fein
HC Wainwright
BuyReiterates
$30.00
Yasmeen Rahimi
Piper Sandler
BuyMaintains
$36.00
Brian Abrahams
RBC Capital
HoldMaintains
$13.00

Source: Professional analyst ratings and price targets from the last 90 days. Data as of Aug 14, 2026. Data sources and methodology

Frequently Asked Questions

What is the analyst consensus rating for PRTA?

The analyst consensus rating for PRTA is Buy, based on the latest ratings from 4 analysts over the last 90 days.

What is the average price target for PRTA?

The average 12-month price target for PRTA is $26.33, representing an upside of 221.1% from the Oct 23, 2026 close of $8.20.

What do analyst ratings mean?

Analyst ratings indicate investment recommendations: Strong Buy and Buy are bullish signals suggesting the stock may outperform. Hold means the stock is fairly valued. Sell and Strong Sell are bearish signals suggesting potential underperformance. These ratings are based on fundamental analysis and valuation models.

What is a price target?

A price target is an analyst's projection of a stock's fair value over a specific timeframe, typically 12 months. Analysts use fundamental analysis, financial modeling, and industry comparisons to estimate where the stock should trade. Price targets can range from low (conservative) to high (optimistic) estimates.