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Prothena Corporation plc
About PRTA
Prothena Corporation plc is an Ireland-based late-stage clinical biotechnology company. The Company is engaged in protein dysregulation and a pipeline of investigational therapeutics for rare peripheral amyloid diseases. The Company is advancing a pipeline of therapeutic candidates for a range of indications and targets to integrate scientific insights around neurological dysfunction and the biology of misfolded proteins. The Company’s 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 a range of other neurodegenerative diseases. Its clinical programs include birtamimab for the potential treatment of AL amyloidosis, prasinezumab for the potential treatment of Parkinson’s disease, NNC6019/PRX004 for the potential treatment of ATTR amyloidosis, and PRX005 and PRX012 for the potential treatment of Alzheimer’s disease.
Find out what a historical investment in Prothena Corporation plc would be worth today using our PRTA stock calculator.
Market Capitalisation
$510.97M
Price-earnings ratio
-
Dividend yield
0.00%
Volume
700.06K
High today
$9.86
Low today
$9.46
Open price
$9.73
52-week high
$11.80
52-week low
$4.32
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Open an accountHow do I buy PRTA shares in Australia?
Buying PRTA shares in Australia can be done through an online investing platform, such as Stake. Follow the simple steps below to start investing in Prothena Corporation plc in minutes.
- Sign up with some I.D. and zero paperwork
- Add funds to your account
- Make your first investment in PRTA
What is the ticker symbol of Prothena Corporation plc?
The ticker symbol for Prothena Corporation plc is PRTA.
How much is one share of PRTA?
One share of PRTA is valued at $9.76 as of 16 May 2026.
What is the market capitalisation of Prothena Corporation plc PRTA?
As of 16 May 2026 Prothena Corporation plc has a market cap of $510.97M.
What is the 52-week high for Prothena Corporation plc stock?
The Prothena Corporation plc 52-week high stock price is $11.80.
What is the 52-week low for Prothena Corporation plc stock?
The Prothena Corporation plc 52-week low stock price is $4.32.
Can I buy PRTA shares through Stake, an investing platform like CommSec, Selfwealth or Superhero?
Yes, the Stake investing platform allows you to buy PRTA shares and over 12,000 more stocks and ETFs across the ASX and Wall St.
This is not financial product advice nor a recommendation to invest in the securities listed. Past performance is not a reliable indicator of future performance. As always, do your own research and consider seeking financial, legal and taxation advice before investing. No representation is made as to the timeliness, reliability, accuracy or completeness of the market data provided.
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Stock shown for demonstrative purposes only. US$3 brokerage up to US$30,000.
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