Prothena Corporation plc Ordinary Shares Share Price
NASDAQ: PRTAHealthcare
Live Prothena Corporation plc Ordinary Shares Share Price Chart
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Prothena Corporation plc Ordinary Shares Performance Overview
Days Range
▼
$8.40Low
$8.40High
Markets Today
| Previous Close | $8.24 |
|---|---|
| Open | $8.40 |
| Volume | 90,397 |
| Day's Range | $8.40 - $8.40 |
| 52W Range | $7.73 - $11.80 |
| Market Cap | $427.64 M |
Historical Performance
| 1M Returns | -7.21 |
|---|---|
| 3M Returns | -2.94 |
| 6M Returns | -8.44 |
| 1Y Returns | +2.23 |
| 5Y Returns | -89.31 |
| 10Y Returns | -86.51 |
Prothena Corporation plc Ordinary Shares Fundamentals
| Market Cap | $427.64 M |
|---|---|
| Dividend yield | 0.00 |
| PE Ratio | 0.00 |
| PEG Ratio | N/A |
| Revenue | $9.68 M |
| ROE TTM | -0.64 |
| EPS TTM | $-0.83 |
| Quarterly Earnings Growth YOY | N/A |
| PB Ratio | 1.50 |
| EBITDA | $-183.66 M |
| Profit Margin | -2520.57 |
| Market Cap | $427.64 M |
|---|---|
| Dividend yield | 0.00 |
| PE Ratio | 0.00 |
| PEG Ratio | N/A |
| Revenue | $9.68 M |
| ROE TTM | -0.64 |
| EPS TTM | $-0.83 |
|---|---|
| Quarterly Earnings Growth YOY | N/A |
| PB Ratio | 1.50 |
| EBITDA | $-183.66 M |
| Profit Margin | -2520.57 |
Prothena Corporation plc Ordinary Shares Profit & Loss
Quarterly
| Mar 2025 | Jun 2025 | Sep 2025 | Dec 2025 | Mar 2026 | Jun 2026 | |
|---|---|---|---|---|---|---|
| Total Revenue + | $2.83 M | $4.42 M | $2.42 M | $21.00 K | $51.08 M | $1.01 M |
| Gross Profit + | $2.83 M | $4.42 M | $2.42 M | $21.00 K | $51.08 M | $1.01 M |
| Operating Income | -$65.58 M | -$84.62 M | -$40.24 M | -$24.20 M | $30.04 M | -$21.10 M |
| EBITDA | -$65.36 M | -$51.78 M | -$39.53 M | -$26.99 M | $25.98 M | -$18.49 M |
| Interest Expense | $0 | $0 | $3.35 M | $2.65 M | $0 | $0 |
| Depreciation | $223.00 K | $32.83 M | $706.00 K | -$2.79 M | -$4.06 M | $2.61 M |
| Income Before Tax | -$61.37 M | -$80.97 M | -$36.91 M | -$21.58 M | $32.72 M | -$18.58 M |
| Income Tax Expense | -$1.18 M | $44.80 M | -$371.00 K | $10.00 K | $1.00 K | $2.00 K |
| Net Income + | -$60.20 M | -$125.77 M | -$36.54 M | -$21.59 M | $32.72 M | -$18.58 M |
| Net Profit Margin | -2128.54% | -2845.41% | -1513.08% | -102804.76% | 64.05% | -1839.9% |
Prothena Corporation plc Ordinary Shares Financials Balance Sheet In USD
Quarterly
| Mar 2025 | Jun 2025 | Sep 2025 | Dec 2025 | Mar 2026 | Jun 2026 | |
|---|---|---|---|---|---|---|
| Share Capital | $538.00 K | $538.00 K | $538.00 K | $538.00 K | $530.00 K | $517.00 K |
| Reserve & Surplus | -$1.16 B | -$1.29 B | -$1.32 B | -$1.35 B | -$1.31 B | -$1.33 B |
| Non-Current Liabilities | $9.20 M | $6.93 M | $6.20 M | $5.49 M | $4.76 M | $4.03 M |
| Current Liabilities | $48.46 M | $67.81 M | $51.44 M | $40.84 M | $32.52 M | $11.66 M |
| Total Liabilities | $57.66 M | $74.73 M | $57.64 M | $46.33 M | $37.28 M | $15.69 M |
| Fixed Assets | $2.87 M | $2.69 M | $2.46 M | $2.14 M | $1.96 M | $2.49 M |
| Current Assets | $436.17 M | $385.48 M | $339.97 M | $315.19 M | $339.20 M | $292.01 M |
| Total Assets | $495.34 M | $399.07 M | $352.63 M | $326.80 M | $349.89 M | $302.58 M |
Prothena Corporation plc Ordinary Shares Cash Flow
Quarterly
| Mar 2025 | Jun 2025 | Sep 2025 | Dec 2025 | Mar 2026 | Jun 2026 | |
|---|---|---|---|---|---|---|
| Net Income | -$60.20 M | -$125.77 M | -$36.54 M | -$21.59 M | $32.72 M | -$18.58 M |
| Operating Cash Flow | -$53.36 M | -$46.34 M | -$40.56 M | -$23.31 M | $28.88 M | -$25.05 M |
| Investing Cash Flow | -$42.00 K | -$86.00 K | -$10.00 K | $0 | $0 | -$652.00 K |
| Financing Cash Flow | -$48.00 K | -$74.00 K | -$17.00 K | $0 | -$6.95 M | -$15.57 M |
| Change in Cash | -$53.45 M | -$46.50 M | -$40.59 M | -$23.31 M | $21.93 M | -$41.27 M |
Prothena Corporation plc Ordinary Shares Return Calculator
The Prothena Corporation plc Ordinary Shares stock calculator helps Indian investors calculate returns based on the historical performance of the stock. Just choose your investment amount and duration to get insights and invest more confidently. See stock returns as well as the effect of dollar appreciation over different durations.
*Dollar Impact: The bonus return you make when the US Dollar rises against the Rupee; calculated on the full amount you walk away with, not just what you invested in.
Returns Estimator
Based on past performance of this fund
ENTER AMOUNT
$10,000
Select Duration
5Yrs
1 Yr5 Yrs
If you had invested $10,000 5 years ago, what would its value be today?$1,100
Invested Amount$10,000
Est. Returns$-8,900
About Prothena Corporation plc Ordinary Shares
Prothena Corp PLC is a late-stage clinical biotechnology company that focuses on protein dysregulation and a pipeline of investigational therapeutics with the potential to change the course of devastating neurodegenerative and rare and peripheral amyloid diseases. Prothena is developing and applying its proprietary CYTOPE technology to target a broad spectrum of intracellular disease pathways in the brain and periphery. The company's pipeline includes both wholly-owned and partnered programs like Prasinezumab, Coramitug (PRX004), BMS-986446 (PRX005), PRX019, TDP-43 CYTOPE, and PRX012-TfR, being developed for the potential treatment of Parkinson's disease, ATTR amyloidosis with cardiomyopathy, Alzheimer's disease, Amyotrophic lateral sclerosis (ALS), and other neurodegenerative diseases.
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FAQs
What is the share price of Prothena Corporation plc Ordinary Shares today?
Prothena Corporation plc Ordinary Shares (PRTA) share price as of September 17, 2026 is $8.48. If you are investing from India, you can always check the valuation in the INR before investing.
Can Indian Investors purchase shares of Prothena Corporation plc Ordinary Shares?
Yes, Indian Investors can invest in the Prothena Corporation plc Ordinary Shares (PRTA) Share by opening an international trading account with Angel One.
How can I purchase Prothena Corporation plc Ordinary Shares shares in India?
Purchasing Prothena Corporation plc Ordinary Shares (PRTA) share from India can be done by: Directly: By opening an international trading account with Angel One. The process would include KYC verification. The account activation takes a few minutes to a few hours, after which you can start buying Prothena Corporation plc Ordinary Shares (PRTA) by making deposits in US dollars. Indirectly: By investing in mutual funds and Exchange Traded Funds (ETF) that offers exposure in global stocks.
Can I buy Fractional shares of Prothena Corporation plc Ordinary Shares?
Yes, you can purchase fractional shares of Prothena Corporation plc Ordinary Shares (PRTA) or any other US company shares in Angel One for any dollar amount.
What is the market capitalization value of Prothena Corporation plc Ordinary Shares?
The market capitalization of Prothena Corporation plc Ordinary Shares on September 17, 2026, is $427.64 M.
In which sector Prothena Corporation plc Ordinary Shares belongs?
Prothena Corporation plc Ordinary Shares operates in the Healthcare sector, specifically in the Healthcare industry.
What documents are required to invest in Prothena Corporation plc Ordinary Shares stocks?
In order to invest in Prothena Corporation plc Ordinary Shares (PRTA) you will need Proof of Identification (Aadhaar, PAN, Passport etc.) and Proof of Address (Aadhaar, Voter Card etc.). From start to end, the process is digital and can be seamless.
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