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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
Sell
Latest Price
9.860
1 Day change
-1.69%
52 Week Range
11.840
Analysis Updated At
2026/04/03
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Prothena Corporation PLC (PRTA) is not a good buy for a beginner investor with a long-term strategy and $50,000-$100,000 available for investment. The stock's financial performance is weak, with significant revenue and net income declines, and there are no positive catalysts or strong trading signals to justify an entry point. Additionally, the technical analysis indicates a potential bearish trend in the short term.

Technical Analysis

The MACD is positive and expanding, indicating short-term bullish momentum. However, RSI is neutral at 67.229, and the stock is trading near resistance levels (R1: 9.933). The moving averages are bullish (SMA_5 > SMA_20 > SMA_200), but the stock's recent price action shows a downward trend with a pre-market decline of -3.89% and a regular market decline of -1.69%. The stock has a high probability of further declines in the next week (-2.91%) and month (-6.22%).

Options Data

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

Technical Summary

StrongSellSellNeutralBuyStrongBuydotted line Image
Sell
4
Buy
10

Positive Catalysts

  • NULL identified. No recent news or significant trading trends from hedge funds or insiders.

Neutral/Negative Catalysts

  • No recent news or positive sentiment from analysts, hedge funds, or insiders. The stock is also expected to decline further based on historical candlestick pattern analysis.

Financial Performance

In Q4 2025, revenue dropped to $21,000 (-99.01% YoY), net income dropped to -$21,589,000 (-62.75% YoY), and EPS dropped to -0.4 (-62.96% YoY). Gross margin remained at 100%, but the overall financial performance is weak.

Growth

Profitability

Efficiency

Analyst Ratings and Price Target Trends

No recent updates on 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: 10.030
sliders
Low
8
Averages
22.2
High
36
Current: 10.030
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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