Prothena Corporation plc, a late-stage clinical biotechnology company, focuses on discovery and development of novel therapies to treat diseases caused by protein dysregulation. Its product pipeline includes Prasinezumab, an investigational humanized monoclonal antibody which is in Phase 3 clinical trial for the treatment of parkinson's disease and other synucleinopathies. The company also develops Coramitug, an investigational antibody, which is in Phase 3 clinical trial for the treatment of transthyretin amyloidosis; BMS-986446, an anti-tau antibody which is in Phase 2 clinical trial to treat Alzheimer's disease; PRX019, an investigational antibody which is in Phase 1 clinical trial for the treatment of neurodegenerative diseases; and PRX123, a Dual Aß-Tau Vaccine, which is in preclinical trial for treating Alzheimer's disease. In addition, it develops discovery- and late-preclinical-stage programs include TDP-43 CYTOPE for the treatment of amyotrophic lateral sclerosis; PRX012, a next-generation anti-Aß antibody which is in phase 1 clinical trial to treat Alzheimer's disease; and PRX012-TfR, a preclinical program for the treatment of Alzheimer's disease. It has a license, development, and commercialization agreement with F. Hoffmann-La Roche Ltd. and Hoffmann-La Roche Inc. to develop and commercialize antibodies that target a-synuclein, including prasinezumab; and master collaboration agreement with Bristol Myers Squibb to develop and commercialize antibodies targeting tau, TDP-43. Prothena Corporation plc was incorporated in 2012 and is based in Dublin, Ireland.
The current price of 0PT.STU is €8.95 EUR — it has decreased by -0.31% in the past 24 hours. Watch Prothena stock price performance more closely on the chart.
What is Prothena stock ticker?▼
Depending on the exchange, the stock ticker may vary. For instance, on exchange Prothena stocks are traded under the ticker 0PT.STU.
Is Prothena stock price growing?▼
0PT.STU stock has risen by +5.32% compared to the previous week, the month change is a +8.51% rise, over the last year Prothena has showed a +1.15% increase.
When is the next Prothena earnings date?▼
Prothena is going to release the next earnings report on May 13, 2026.
What were Prothena earnings last quarter?▼
0PT.STU earnings for the last quarter are -0.34 EUR per share, whereas the estimation was -0.47 EUR resulting in a +28.39% surprise. The estimated earnings for the next quarter are N/A EUR per share.
How many employees does Prothena have?▼
As of April 11, 2026, the company has 67 employees.
In which sector is Prothena located?▼
Prothena operates in the Manufacturing sector.
When did Prothena complete a stock split?▼
Prothena has not had any recent stock splits.
Where is Prothena headquartered?▼
Prothena is headquartered in Dublin, United Kingdom.