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NASDAQ: PRTA
Prothena Corp Public Ltd Co Stock Forecast, Predictions & Price Target

OverviewForecast
EarningsRevenueDividendOwnership

Analyst price target for PRTA

Based on 5 analysts offering 12 month price targets for Prothena Corp Public Ltd Co

Min Forecast
$11.00+23.46%
Avg Forecast
$22.80+155.89%
Max Forecast
$36.00+304.04%

Should I buy or sell PRTA stock?

Based on 5 analysts offering ratings for Prothena Corp Public Ltd Co.

Buy
Strong Buy
2 analysts 40%
Buy
2 analysts 40%
Hold
1 analysts 20%
Sell
0 analysts 0%
Strong Sell
0 analysts 0%
Although PRTA's forecast from analysts indicates a "Buy", our proven Zen Rating quant model rates PRTA as a "Hold". Stocks with a Zen Rating of Hold have had an average return of +7.53% per year. Learn More

Be the first to know when Wall Street analysts revise their PRTA stock forecasts and price targets.

PRTA stock forecasts by analyst

Analyst / FirmRatingActionPrice TargetUpside/DownsideDateAnalyst Color
lockedlocked$00.00+00.00%2025-12-01
lockedlocked$00.00+00.00%2025-11-07
lockedlocked$00.00+00.00%2025-11-07
lockedlocked$00.00+00.00%2025-10-28
lockedlocked$00.00+00.00%2025-08-28

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Forecast return on equity

Is PRTA forecast to generate an efficient return?

Company
-26.52%
Industry
335.63%
Market
216.58%
PRTA's Return on Equity is... subscribe to Premium to read more.
Forecast High Return on Equity Forecast

Forecast return on assets

Is PRTA forecast to generate an efficient return on assets?

Company
-22.19%
Industry
119.72%
PRTA is forecast to generate... subscribe to Premium to read more.
Forecast Return on Assets vs Industry Forecast

PRTA earnings per share forecast

What is PRTA's earnings per share in the next 3 years based on estimates from 9 analysts?

Avg 1 year Forecast
$0.61
Avg 2 year Forecast
-$0.89
Avg 3 year Forecast
-$0.09

PRTA revenue forecast

What is PRTA's revenue in the next 3 years based on estimates from 9 analysts?

Avg 1 year Forecast
$144.9M+1,129%
Avg 2 year Forecast
$34.0M+188.48%
Avg 3 year Forecast
$103.1M+774.77%
PRTA's revenue is forecast to... subscribe to Premium to read more.
Forecast High Revenue Growth Forecast

PRTA revenue growth forecast

How is PRTA forecast to perform vs Biotechnology companies and vs the US market?

Company
106.05%
Industry
115.73%
Market
23.06%
PRTA's revenues are forecast to... subscribe to Premium to read more.
Forecast Revenue Growth vs Industry Forecast
PRTA's revenues are forecast to... subscribe to Premium to read more.
Forecast Revenue Growth vs Market Forecast

PRTA vs Biotech Stocks

TickerPricePrice TargetUp/downsideConsensus
PRTA$8.91$22.80+155.89%Buy
LYEL$22.71$32.50+43.11%Strong Buy
ZVRA$8.60$22.00+155.81%Strong Buy
ANRO$15.22$28.17+85.07%Strong Buy
ADCT$4.01$8.50+111.97%Strong Buy
View Top Biotech Stocks

Prothena Public Co Stock Forecast FAQ

Is Prothena Public Co Stock a good buy in 2026, according to Wall Street analysts?

The consensus among 5 Wall Street analysts covering (NASDAQ: PRTA) stock is to Buy PRTA stock.

Out of 5 analysts, 2 (40%) are recommending PRTA as a Strong Buy, 2 (40%) are recommending PRTA as a Buy, 1 (20%) are recommending PRTA as a Hold, 0 (0%) are recommending PRTA as a Sell, and 0 (0%) are recommending PRTA as a Strong Sell.

If you're new to stock investing, here's how to buy Prothena Public Co stock.

What is PRTA's earnings growth forecast for 2026-2028?

(NASDAQ: PRTA) Prothena Public Co's forecast annual earnings growth rate of N/A is not forecast to beat the US Biotechnology industry's average forecast earnings growth rate of 69.38%, and while it is not forecast to beat the US market's average forecast earnings growth rate of 40.03%.

Prothena Public Co's earnings in 2026 is -$280,459,000.On average, 9 Wall Street analysts forecast PRTA's earnings for 2026 to be $32,707,097, with the lowest PRTA earnings forecast at -$85,460,479, and the highest PRTA earnings forecast at $226,085,924. On average, 6 Wall Street analysts forecast PRTA's earnings for 2027 to be -$47,908,684, with the lowest PRTA earnings forecast at -$69,634,465, and the highest PRTA earnings forecast at -$20,347,733.

In 2028, PRTA is forecast to generate -$4,667,059 in earnings, with the lowest earnings forecast at -$81,767,743 and the highest earnings forecast at $77,999,644.

What is PRTA's revenue growth forecast for 2026-2028?

(NASDAQ: PRTA) Prothena Public Co's forecast annual revenue growth rate of 106.05% is not forecast to beat the US Biotechnology industry's average forecast revenue growth rate of 115.73%, and while it is forecast to beat the US market's average forecast revenue growth rate of 23.06%.

Prothena Public Co's revenue in 2026 is $11,786,000.On average, 9 Wall Street analysts forecast PRTA's revenue for 2026 to be $7,797,272,893, with the lowest PRTA revenue forecast at $5,275,338,236, and the highest PRTA revenue forecast at $14,412,977,681. On average, 6 Wall Street analysts forecast PRTA's revenue for 2027 to be $1,830,219,388, with the lowest PRTA revenue forecast at $0, and the highest PRTA revenue forecast at $5,652,148,110.

In 2028, PRTA is forecast to generate $5,549,871,144 in revenue, with the lowest revenue forecast at $0 and the highest revenue forecast at $8,608,490,721.

What is PRTA's forecast return on assets (ROA) for 2026-2029?

(NASDAQ: PRTA) forecast ROA is -22.19%, which is lower than the forecast US Biotechnology industry average of 119.72%.

What is PRTA's Price Target?

According to 5 Wall Street analysts that have issued a 1 year PRTA price target, the average PRTA price target is $22.80, with the highest PRTA stock price forecast at $36.00 and the lowest PRTA stock price forecast at $11.00.

On average, Wall Street analysts predict that Prothena Public Co's share price could reach $22.80 by Dec 1, 2026. The average Prothena Public Co stock price prediction forecasts a potential upside of 155.89% from the current PRTA share price of $8.91.

What is PRTA's Earnings Per Share (EPS) forecast for 2026-2028?

(NASDAQ: PRTA) Prothena Public Co's current Earnings Per Share (EPS) is -$5.21. On average, analysts forecast that PRTA's EPS will be $0.61 for 2026, with the lowest EPS forecast at -$1.59, and the highest EPS forecast at $4.20. On average, analysts forecast that PRTA's EPS will be -$0.89 for 2027, with the lowest EPS forecast at -$1.29, and the highest EPS forecast at -$0.38. In 2028, PRTA's EPS is forecast to hit -$0.09 (min: -$1.52, max: $1.45).

What is PRTA's forecast return on equity (ROE) for 2026-2029?

(NASDAQ: PRTA) forecast ROE is -26.52%, which is considered weak.
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