Prothena Corporation Stock Forecast

Stock Price Forecast

The 7 analysts that cover Prothena Corporation stock have a consensus rating of "Buy" and an average price target of $19, which forecasts a 98.33% increase in the stock price over the next year. The lowest target is $4.00 and the highest is $36.

Price Target: $19 (+98.33%)

Analyst Consensus: Buy

Target	Low	Average	Median	High
Price	$4.00	$19	$18	$36
Change	-58.25%	+98.33%	+87.89%	+275.78%

Analyst Ratings

The average analyst rating for Prothena Corporation stock is "Buy". This means that analysts believe this stock is likely to outperform the market over the next twelve months.

Recommendation Trends

Rating	Oct '25	Nov '25	Dec '25	Jan '26	Feb '26	Mar '26
Strong Buy	3	3	3	3	3	3
Buy	2	2	2	2	2	2
Hold	3	3	3	3	3	3
Sell	1	1	1	1	1	1
Strong Sell	0	0	0	0	0	0
Total	9	9	9	9	9	9

Latest Forecasts

Analyst	Firm	Rating	Rating	Action	Price Target	Upside	Date
Brian Abrahams RBC Capital	RBC Capital	Hold Maintains $11 → $12	Hold	Maintains	$11 → $12	+25.26%	Feb 20, 2026
Jason Butler Citizens	Citizens	Buy Maintains $11 → $19	Buy	Maintains	$11 → $19	+98.33%	Dec 1, 2025
Andrew S. Fein HC Wainwright & Co.	HC Wainwright & Co.	Strong Buy Maintains $20 → $30	Strong Buy	Maintains	$20 → $30	+213.15%	Nov 7, 2025
Brian Abrahams RBC Capital	RBC Capital	Hold Maintains $10 → $11	Hold	Maintains	$10 → $11	+14.82%	Nov 7, 2025
Yasmeen Rahimi Piper Sandler	Piper Sandler	Buy Maintains $15 → $36	Buy	Maintains	$15 → $36	+275.78%	Oct 28, 2025

More Analyst Ratings

Financial Forecast

Revenue This Year

117.31M

from 9.68M

1,111.38%

from 9.68M

Revenue Next Year

25.50M

from 117.31M

-78.26%

from 117.31M

EPS This Year

0.34

from -4.53

EPS Next Year

-1.20

from 0.34

Fiscal Year	FY 2021	FY 2022	FY 2023	FY 2024	FY 2025	FY 2026	FY 2027
Period Ending	Dec 31, 2021	Dec 31, 2022	Dec 31, 2023	Dec 31, 2024	Dec 31, 2025	Dec 31, 2026	Dec 31, 2027
Revenue	200.58M	53.91M	91.37M	135.16M	9.68M	117.31M	25.50M
Revenue Growth	23,414.30%	-73.13%	69.50%	47.92%	-92.84%	1,111.38%	-78.26%
EPS	1.38	-2.47	-2.76	-2.27	-4.53	0.34	-1.20
EPS Growth	-	-	-	-	-	-	-
Forward PE	-	-	-	-	-	28.27	-
No. Analysts	-	-	-	-	-	9	7

Historical EPS numbers are GAAP, while forecasted numbers may be non-GAAP.

Revenue Forecast

Revenue	2026	2027
High	157.6M	105.0M
Avg	117.3M	25.5M
Low	98.0M	n/a

Revenue Growth

Revenue Growth	2026	2027
High	1,526.9%	-10.5%
Avg	1,111.4%	-78.3%
Low	912.0%	-

EPS Forecast

EPS	2026	2027
High	1.90	-1.01
Avg	0.34	-1.20
Low	-1.48	-1.37

EPS Growth

EPS Growth	2026	2027
High	-	-
Avg	-	-
Low	-	-

Sources: Price targets and analyst ratings provided by Benzinga. Revenue and EPS forecast data provided by Finnhub. The data is sourced from Wall Street analysts. Data disclaimer.