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PRTA

Prothena Corporation plc · NASDAQ · Healthcare

Price$8.91-0.22% · −$0.02
Market cap466.47MEquity value
P / E-10.7Trailing ratio
Volume29.14KLatest session
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Browse public PRTA signals with their source context and measured market impact. Open any signal for its permanent analysis page.

PRTAMay 27, 2025-31.08% since signal

Why Is Prothena Stock Trading Lower On Tuesday?

Prothena's Phase 3 trial for birtamimab failed primary endpoint. Company will discontinue development of birtamimab following disappointing results. PRTA stock fell 26.80% post-announcement; plans for cost reductions underway. Future data readouts for Alzheimer's drug PRX012 are anticipated within 18 months. Workforce reductions and business evaluations are planned to benefit shareholders.

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PRTAMay 9, 2024-2.51% since signal

Prothena (PRTA) Q1 Earnings Miss Estimates on Higher R&D Expenses

- Prothena (PRTA) reported a wider loss per share due to higher expenses and lower revenues. - Total revenues in Q1 were $0.05 million, missing estimates and declining from the previous year. - Pipeline updates include ongoing studies for Alzheimer's and Parkinson's disease treatments. - Share price of PRTA has fallen 36.6% year to date compared to the industry. Price Impact Rating: Bearish Impact Horizon Rating: Long-term Type: Research Analysis

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PRTAMay 8, 2024-4.47% since signal

Prothena (PRTA) Reports Q1 Loss, Lags Revenue Estimates

- Prothena reported a quarterly loss of $1.34 per share, missing estimates and a year ago. - Company posted revenues of $0.05 million, missing estimates by 98.67%. - Prothena shares have lost 35.2% YTD against S&P 500's gain of 8.8%. - Management's commentary and future earnings will determine Prothena's stock movement. - Zacks Rank holds Prothena at #3 (Hold) with a mixed estimate revisions trend. Price Impact Rating: Bearish Impact Horizon Rating: Short-term Type: Research Analysis

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