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PRTA Should I Buy

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Intellectia

Should You Buy Prothena Corporation PLC (PRTA) Today? Analysis, Price Targets, and 2026 Outlook.

Conclusion
Hold
Latest Price
11.060
1 Day change
1.75%
52 Week Range
11.690
Analysis Updated At
2026/04/24
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Prothena Corporation PLC (PRTA) is not a strong buy at the moment for a beginner investor with a long-term focus. The lack of significant positive catalysts, poor financial performance in the latest quarter, and absence of strong trading signals suggest that holding off on this investment is prudent for now.

Technical Analysis

The stock shows bullish moving averages (SMA_5 > SMA_20 > SMA_200), a slightly positive MACD histogram (0.011), and a neutral RSI (59.696). Key resistance levels are at 10.976 and 11.186, while support levels are at 10.296 and 10.086. However, the stock's candlestick pattern suggests a 50% chance of a -1.61% decline in the next day and a -2.4% decline in the next week.

Options Data

Bullish
Open Interest Put-Call Ratio
Bullish
Option Volume Put-Call Ratio

The low put-call ratios indicate a bullish sentiment among options traders, but the overall volume is low, which limits the reliability of this signal.

Technical Summary

StrongSellSellNeutralBuyStrongBuydotted line Image
Sell
7
Buy
6

Positive Catalysts

  • Bullish moving averages and a slightly positive MACD histogram. Gross margin remains at 100%, showcasing operational efficiency.

Neutral/Negative Catalysts

  • Severe declines in revenue (-99.01% YoY), net income (-62.75% YoY), and EPS (-62.96% YoY) in the latest quarter (2025/Q4). No recent news or significant insider or hedge fund activity. No recent congress trading data. Stock trend analysis indicates potential short-term declines.

Financial Performance

In 2025/Q4, revenue dropped significantly to 21,000 (-99.01% YoY), net income fell to -21,589,000 (-62.75% YoY), and EPS dropped to -0.4 (-62.96% YoY). Gross margin remained at 100%, unchanged YoY.

Growth

Profitability

Efficiency

Analyst Ratings and Price Target Trends

No data on recent analyst ratings or price target changes.

Wall Street analysts forecast PRTA stock price to rise
5 Analyst Rating
Wall Street analysts forecast PRTA stock price to rise
4 Buy
0 Hold
1 Sell
Moderate Buy
Current: 11.060
sliders
Low
8
Averages
22.2
High
36
Current: 11.060
sliders
Low
8
Averages
22.2
High
36
BofA
Tazeen Ahmad
Underperform
maintain
$4 -> $8
AI Analysis
2025-11-24
Reason
BofA
Tazeen Ahmad
Price Target
$4 -> $8
AI Analysis
2025-11-24
maintain
Underperform
Reason
BofA analyst Tazeen Ahmad raised the firm's price target on Prothena (PRTA) to $8 from $4 and keeps an Underperform rating on the shares. Prothena no longer plans to disclose further data for its Alzheimer's drug PRX012, notes the firm, which removed value for the program from its model and is shifting focus on valuation to two Phase 3 assets under development by partners Novo (NVO) and Roche (RHHBY) - Coramitug for ATTR-cardiomyopathy and prasinezumab for early-stage Parkinson's disease. While both programs will have begun Phase 3 studies by year-end, which the firm views favorably for Prothena, the firm adds that each drug will need several years to reach the market and their competitive positioning in the case of Coramitug and clinical efficacy in the case of prasinezumab are "uncertain."
H.C. Wainwright
Buy
maintain
$20 -> $30
2025-11-07
Reason
H.C. Wainwright
Price Target
$20 -> $30
2025-11-07
maintain
Buy
Reason
H.C. Wainwright raised the firm's price target on Prothena to $30 from $20 and keeps a Buy rating on the shares. The firm believes the market is overlooking the company's two partnered Phase 3 programs and a partnered Phase 2 asset with blockbuster potential.
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