Prothena Corp. Plc is a clinical-stage neuroscience company, which engages in the discovery and development of novel therapies to change the course of devastating diseases. The firm’s clinical pipeline includes both wholly owned and partnered programs being developed for the potential treatment of diseases including AL amyloidosis, ATTR amyloidosis, Alzheimer’s disease, Parkinson’s disease and other neurodegenerative diseases. The company was founded in December 1969 and is headquartered in Dublin, Ireland.
Sector:
Health Technology
Industry:
Biotechnology
Employees:
163
Frequently Asked Questions
What is Market Cap of Prothena Corporation plc?
Market cap, also known as market capitalization, is the total market value of a company. It’s calculated by multiplying the current market price by the total number of shares outstanding. Prothena Corporation plc market cap is $533.99M.
What is the 52-week high for Prothena Corporation plc?
52 week high is the highest price of a stock in the past 52 weeks, or one year. Prothena Corporation plc 52 week high is $18.88 as of October 19, 2025.
What is the 52-week low for Prothena Corporation plc?
52 week low is the lowest price of a stock in the past 52 weeks, or one year. Prothena Corporation plc 52 week low is $4.32 as of October 19, 2025.
What is Prothena Corporation plc stock price today?
Prothena Corporation plc stock price today is $9.92.
What was Prothena Corporation plc stock price yesterday?
Prothena Corporation plc stock price yesterday was $10.09.
What is the PE ratio of Prothena Corporation plc?
The Price-to-Earnings (or P/E) ratio is a commonly used tool for valuing a company. It’s calculated by dividing the current share price by the earnings per share (or EPS). It can also be calculated by dividing the company’s Market Cap by the Net Profit. Prothena Corporation plc’s P/E ratio is -1.76.
What is the Price-to-Book ratio of Prothena Corporation plc?
The Price-to-Book (P/B) ratio is a commonly used tool for valuing a company. It’s calculated by dividing a company’s market capitalization by its book value. Prothena Corporation plc P/B ratio is 1.6464.
What is the 50-day moving average of Prothena Corporation plc?
The 50-day moving average is a frequently used data point by active investors and traders to understand the trend of a stock. It’s calculated by averaging the closing stock price over the previous 50 trading days. Prothena Corporation plc 50-day moving average is $8.87.
How many employess does Prothena Corporation plc has?