Prothena Corporation plc - Ordinary Shares (PRTA)
15.06
+0.73 (5.09%)
Prothena Corp is a biotechnology company focused on the discovery and development of innovative therapies to treat diseases caused by protein misfolding and aggregation
The company specializes in the research and development of monoclonal antibodies and other advanced treatments aimed at targeting neurodegenerative diseases, including Alzheimer's and Parkinson's. Through its proprietary platform, Prothena aims to address significant unmet medical needs by advancing its drug candidates through clinical trials, ultimately seeking to enhance the quality of life for patients suffering from these challenging conditions.
Previous Close | 14.33 |
---|---|
Open | 14.15 |
Bid | 13.66 |
Ask | 17.70 |
Day's Range | 13.89 - 15.51 |
52 Week Range | 11.70 - 30.85 |
Volume | 586,967 |
Market Cap | 678.41M |
PE Ratio (TTM) | -6.576 |
EPS (TTM) | -2.3 |
Dividend & Yield | N/A (N/A) |
1 Month Average Volume | 381,756 |
News & Press Releases

Via Benzinga · February 26, 2025

Via Benzinga · February 24, 2025

Prothena Corporation plc (NASDAQPRTA), a late-stage clinical biotechnology company with a robust pipeline of investigational therapeutics built on protein dysregulation expertise, today reported financial results for the fourth quarter and full year 2024. In addition, the Company provided business highlights and 2025 financial guidance.
By Prothena Corporation plc · Via Business Wire · February 20, 2025

Prothena Corporation plc (NASDAQPRTA), a late-stage clinical biotechnology company with a robust pipeline of investigational therapeutics built on protein dysregulation expertise, today announced that it will report its fourth quarter and full year 2024 financial results on Thursday, February 20, 2025, after the close of the U.S. financial markets. The announcement will be followed by a live audio conference call at 4:30 PM ET.
By Prothena Corporation plc · Via Business Wire · February 13, 2025

Via Benzinga · February 7, 2025

Via Benzinga · December 20, 2024

Via Benzinga · January 28, 2025

Prothena Corporation plc (NASDAQPRTA), a late-stage clinical biotechnology company with a robust pipeline of investigational therapeutics built on protein dysregulation expertise, today announced that Oleg Nodelman will step down from Prothena’s Board of Directors to create time to focus on existing and new endeavors. During his five-year tenure, Mr. Nodelman played a pivotal role in which he made significant contributions to the Company’s current strategy.
By Prothena Corporation plc · Via Business Wire · December 30, 2024

Via Benzinga · December 20, 2024

The drug technically missed the study's primary goal. But there's still promise it could work in specific patients.
Via Investor's Business Daily · December 19, 2024

Via Benzinga · October 1, 2024

Prothena and Roche report Phase 2b PADOVA results on prasinezumab in Parkinson's, showing promising trends and nominal significance in key analyses.
Via Benzinga · December 19, 2024

Via Benzinga · December 19, 2024

Prothena Corporation plc (NASDAQPRTA), today announced results from the Phase IIb PADOVA study conducted by partner Roche investigating prasinezumab in 586 people with early-stage Parkinson’s disease, treated for a minimum of 18 months while on stable symptomatic treatment. Prasinezumab showed potential clinical effect in the primary endpoint of time to confirmed motor progression with a HR=0.84 [0.69-1.01] and p=0.0657. The effect of prasinezumab was more pronounced in a pre-specified analysis in the population treated with levodopa (75% of participants), HR=0.79 [0.63-0.99] and nominal p=0.0431. Pre-specified supplementary covariate-adjusted* analyses of these endpoints demonstrated nominally significant effects on the primary endpoint (HR=0.81 [0.67-0.98]; nominal p=0.0334) and in the levodopa subgroup (HR=0.76 [0.61-0.95]; nominal p=0.0175). Consistent positive trends across multiple secondary and exploratory endpoints were also observed. Prasinezumab continues to be well tolerated and no new safety signals were observed in the study.
By Prothena Corporation plc · Via Business Wire · December 19, 2024

Prothena Corporation plc (NASDAQPRTA), a late-stage clinical biotechnology company with a robust pipeline of investigational therapeutics built on protein dysregulation expertise, today reported financial results for the third quarter and first nine months of 2024 and provided business highlights.
By Prothena Corporation plc · Via Business Wire · November 12, 2024

Prothena Corporation plc (NASDAQPRTA), a late-stage clinical biotechnology company with a robust pipeline of investigational therapeutics built on protein dysregulation expertise, today announced that it will report its third quarter and first nine months of 2024 financial results on Tuesday, November 12, 2024, after the close of the U.S. financial markets.
By Prothena Corporation plc · Via Business Wire · November 5, 2024

Via Benzinga · October 28, 2024

Via Benzinga · September 30, 2024

Via Benzinga · September 30, 2024

Prothena Corporation plc (NASDAQPRTA), a late-stage clinical biotechnology company with a robust pipeline of investigational therapeutics built on protein dysregulation expertise, today announced that Chad Swanson, Ph.D., has been appointed Chief Development Officer and will assume leadership of clinical development and medical functions. Chad will join Prothena’s executive leadership team and will report to Gene Kinney, Ph.D., President and Chief Executive Officer. Hideki Garren, M.D., Ph.D., will pursue an opportunity at a large pharmaceutical company to lead a global product development division. Prothena will initiate a search for a world-class healthcare leader as our next Chief Medical Officer.
By Prothena Corporation plc · Via Business Wire · September 27, 2024