PRTA · Company research
Prothena Corporation plc (PRTA): Stock News & Events
Recent company-linked news records available in the database.
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Recent company-linked news records available in the database. Use period, currency, units and source fields when interpreting values.
19records availableHealthcare
Stock News & Events data
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| title | summary | url | source | published at | sentiment | sentiment score | relevance score |
|---|---|---|---|---|---|---|---|
| MEDP,RTB,GWRE,CRWD,PRTA,GRAB,DELL,GME,CRM | Stock Prices | Quote Comparison - Yahoo! Finance Canada | MEDP,RTB,GWRE,CRWD,PRTA,GRAB,DELL,GME,CRM | Stock Prices | Quote Comparison Yahoo! Finance Canada | View source ↗ | Yahoo! Finance Canada | Oct 18, 2026 | neutral | 0 | 0.6 |
| A 10% owner buys 100,000 Prothena (PRTA) shares, then another 10,000. - Stock Titan | A 10% owner buys 100,000 Prothena (PRTA) shares, then another 10,000. Stock Titan | View source ↗ | Stock Titan | Oct 15, 2026 | neutral | 0 | 0.6 |
| Insider Purchase: 10% owner at $PRTA Buys 100,000 Shares - Quiver Quantitative | Insider Purchase: 10% owner at $PRTA Buys 100,000 Shares Quiver Quantitative | View source ↗ | Quiver Quantitative | Oct 9, 2026 | neutral | 0 | 0.6 |
| Prothena Corporation plc (PRTA) Stock Price, News, Quote & History - Yahoo! Finance Canada | Prothena Corporation plc (PRTA) Stock Price, News, Quote & History Yahoo! Finance Canada | View source ↗ | Yahoo! Finance Canada | Oct 9, 2026 | neutral | 0 | 0.6 |
| CRMD vs. PRTA: Which Stock Should Value Investors Buy Now? | In a comparison of two medical-biomedical stocks, CorMedix (CRMD) emerges as the superior value option over Prothena (PRTA). CRMD holds a Zacks Rank of #2 (Buy) with a Value grade of A, featuring a forward P/E of 13.48 and PEG ratio of 1.35. PRTA, ranked #3 (Hold) with a Value grade of F, has a forward P/E of 66.51 and PEG ratio of 1.99, indicating it is significantly more expensive relative to its growth prospects. | View source ↗ | Zacks Investment Research | Oct 8, 2026 | neutral | 0 | 1 |
| CRMD vs. PRTA: Which Stock Should Value Investors Buy Now? | In a comparison of two medical-biomedical stocks, CorMedix (CRMD) emerges as the superior value option over Prothena (PRTA). CRMD holds a Zacks Rank of #2 (Buy) with a Value grade of A, featuring a forward P/E of 13.48 and PEG ratio of 1.35. PRTA, ranked #3 (Hold) with a Value grade of F, has a forward P/E of 66.51 and PEG ratio of 1.99, indicating it is significantly more expensive relative to its growth prospects. | View source ↗ | Zacks Investment Research | Oct 8, 2026 | neutral | 0 | 1 |
| CRMD vs. PRTA: Which Stock Should Value Investors Buy Now? | In a comparison of two medical-biomedical stocks, CorMedix (CRMD) emerges as the superior value option over Prothena (PRTA). CRMD holds a Zacks Rank of #2 (Buy) with a Value grade of A, featuring a forward P/E of 13.48 and PEG ratio of 1.35. PRTA, ranked #3 (Hold) with a Value grade of F, has a forward P/E of 66.51 and PEG ratio of 1.99, indicating it is significantly more expensive relative to its growth prospects. | View source ↗ | Zacks Investment Research | Oct 8, 2026 | neutral | 0 | 1 |
| CRMD vs. PRTA: Which Stock Should Value Investors Buy Now? - Yahoo Finance | CRMD vs. PRTA: Which Stock Should Value Investors Buy Now? Yahoo Finance | View source ↗ | Yahoo Finance | Oct 8, 2026 | neutral | 0 | 0.6 |
| Trading the Move, Not the Narrative: (PRTA) Edition - Stock Traders Daily | Trading the Move, Not the Narrative: (PRTA) Edition Stock Traders Daily | View source ↗ | Stock Traders Daily | Oct 3, 2026 | neutral | 0 | 0.6 |
| A development chief is leaving Prothena (PRTA) to join one of its strategic partners. - Stock Titan | A development chief is leaving Prothena (PRTA) to join one of its strategic partners. Stock Titan | View source ↗ | Stock Titan | Oct 2, 2026 | neutral | 0 | 0.6 |
| Prothena Corporation stock reports a narrower Q2 loss - ad-hoc-news.de | Prothena Corporation stock reports a narrower Q2 loss ad-hoc-news.de | View source ↗ | ad-hoc-news.de | Sep 28, 2026 | neutral | 0 | 0.6 |
| Prothena (PRTA) 10% holder logs 963K-share gifts - Stock Titan | Prothena (PRTA) 10% holder logs 963K-share gifts Stock Titan | View source ↗ | Stock Titan | Aug 18, 2026 | neutral | 0 | 0.6 |
| PRTA Stock Rises Nearly 11% in Six Months: What's Driving It? - Prime Publishers, Inc. | PRTA Stock Rises Nearly 11% in Six Months: What's Driving It? Prime Publishers, Inc. | View source ↗ | Prime Publishers, Inc. | Jul 9, 2026 | neutral | 0 | 0.6 |
| PRTA Stock Rises Nearly 11% in Six Months: What's Driving It? - Yahoo Finance | PRTA Stock Rises Nearly 11% in Six Months: What's Driving It? Yahoo Finance | View source ↗ | Yahoo Finance | Jul 9, 2026 | neutral | 0 | 0.6 |
| PRTA Forecast — Price Target — Prediction for 2027 - TradingView | PRTA Forecast — Price Target — Prediction for 2027 TradingView | View source ↗ | TradingView | Jun 25, 2026 | neutral | 0 | 0.6 |
| When Can We Expect A Profit From Prothena Corporation plc (NASDAQ:PRTA)? - Simply Wall Street | When Can We Expect A Profit From Prothena Corporation plc (NASDAQ:PRTA)? Simply Wall Street | View source ↗ | Simply Wall Street | Mar 27, 2026 | neutral | 0 | 0.6 |
| Prothena: A Hold With 2 Late-Stage Programs Underway But With Caution (NASDAQ:PRTA) - Seeking Alpha | Prothena: A Hold With 2 Late-Stage Programs Underway But With Caution (NASDAQ:PRTA) Seeking Alpha | View source ↗ | Seeking Alpha | Mar 3, 2026 | neutral | 0 | 0.6 |
| Prothena Corporation plc (PRTA) Stock Price: Oct 5 Close $8.27 - Gotrade | Prothena Corporation plc (PRTA) Stock Price: Oct 5 Close $8.27 Gotrade | View source ↗ | Gotrade | Jan 13, 2026 | neutral | 0 | 0.6 |
| symbol__ Stock Quote Price and Forecast - CNN | symbol__ Stock Quote Price and Forecast CNN | View source ↗ | CNN | Jan 8, 2024 | neutral | 0 | 0.6 |
Informational research only, not financial advice. Forecasts are uncertain and can be wrong.