Prothena Corp (PRTA) Sees Downgrade and Price Target Cut by B of A Securities | PRTA Stock News

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May 28, 2025
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Prothena Corp (PRTA, Financial) has witnessed a significant downgrade from B of A Securities. Analyst Tazeen Ahmad has adjusted the rating from "Neutral" to "Underperform," indicating a more cautious outlook on the stock's performance.

In conjunction with the rating change, B of A Securities has also significantly lowered Prothena Corp's (PRTA, Financial) price target. The new price target is set at $4.00, down considerably from a previous target of $22.00. This adjustment represents an 81.82% decrease, highlighting a less optimistic forecast for the company's future prospects.

The revised outlook and price target comes amid market evaluations, reflecting the analyst's updated perspective on Prothena Corp's (PRTA, Financial) positioning and its potential market performance. Investors are advised to consider these changes when making decisions related to Prothena Corp (PRTA).

Wall Street Analysts Forecast

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Based on the one-year price targets offered by 8 analysts, the average target price for Prothena Corp PLC (PRTA, Financial) is $31.25 with a high estimate of $81.00 and a low estimate of $6.00. The average target implies an upside of 587.57% from the current price of $4.55. More detailed estimate data can be found on the Prothena Corp PLC (PRTA) Forecast page.

Based on the consensus recommendation from 9 brokerage firms, Prothena Corp PLC's (PRTA, Financial) average brokerage recommendation is currently 2.6, indicating "Hold" status. The rating scale ranges from 1 to 5, where 1 signifies Strong Buy, and 5 denotes Sell.

Based on GuruFocus estimates, the estimated GF Value for Prothena Corp PLC (PRTA, Financial) in one year is $25.43, suggesting a upside of 459.52% from the current price of $4.545. GF Value is GuruFocus' estimate of the fair value that the stock should be traded at. It is calculated based on the historical multiples the stock has traded at previously, as well as past business growth and the future estimates of the business' performance. More detailed data can be found on the Prothena Corp PLC (PRTA) Summary page.

Disclosures

I/We may personally own shares in some of the companies mentioned above. However, those positions are not material to either the company or to my/our portfolios.