Analyst consensus rating

Prothena Analyst Rating: Buy

PRTA is rated Buy by 5 analysts with a $21.40 target. As of 2026-08-23.

Direct answer

Prothena's consensus rating is Buy.

5 analysts are included in the current consensus when a coverage count is available.
The same consensus reports an average price target of $21.40.
Forecast evidence checked August 23, 2026.

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Verified data

Current price
$9.45
Average price target
$21.40
High price target
$36.00
Low price target
$8.00
Low target gap
-15.3%
Target upside
+126.5%
High target gap
+281%
Target range width
296.3%
Consensus rating
Buy
Analysts
5
Evidence date
August 23, 2026
Valid through
August 30, 2026

Read the frequently asked questions.

What is the analyst consensus rating for Prothena?

Prothena has a verified Buy consensus. The same dataset has an average price target of $21.40.

How far are Prothena's low and high targets from the recorded price?

The low target implies -15.3%, while the high target implies +281%.

How many analysts are included in Prothena's consensus?

The verified consensus includes 5 analysts.

How is Prothena's target upside or downside calculated?

The average target of $21.40 is divided by the recorded price of $9.45, then one is subtracted to produce +126.5%. This does not guarantee a future return.

When was Prothena's analyst forecast verified?

The data was verified on 2026-08-23. The dataset is valid through 2026-08-30.