Prothena Corporation plc (PRTA)
NASDAQ: PRTA · Real-Time Price · USD
8.12
-0.29 (-3.45%)
Jul 31, 2026, 4:00 PM EDT - Market closed
Prothena Corporation Market Cap
Prothena Corporation has a market cap or net worth of $425.11 million as of August 3, 2026. Its market cap has increased by 14.80% in one year.
Market Cap
425.11M
Enterprise Value
103.30M
1-Year Change
14.80%
Ranking
Category
Stock Price
$8.12
ChartMarket Cap Chart
Since December 21, 2012, Prothena Corporation's market cap has increased from $127.30M to $425.11M, an increase of 233.94%. That is a compound annual growth rate of 9.26%.
| Date | Market Cap | % Change |
|---|---|---|
| Jul 31, 2026 | 425.10M | -17.31% |
| Dec 31, 2025 | 514.10M | -31.02% |
| Dec 31, 2024 | 745.30M | -61.78% |
| Dec 29, 2023 | 1.95B | -33.09% |
| Dec 30, 2022 | 2.91B | 26.63% |
| Dec 31, 2021 | 2.30B | 380.02% |
| Dec 31, 2020 | 479.50M | -24.08% |
| Dec 31, 2019 | 631.60M | 53.82% |
| Dec 31, 2018 | 410.60M | -71.51% |
| Dec 29, 2017 | 1.44B | -15.04% |
| Dec 30, 2016 | 1.70B | -20.98% |
| Dec 31, 2015 | 2.15B | 277.66% |
| Dec 31, 2014 | 568.50M | -1.92% |
| Dec 31, 2013 | 579.60M | 347.22% |
| Dec 31, 2012 | 129.60M | 1.81% |
| Dec 21, 2012 | 127.30M | - |
View and export this data all the way back to 2012. Sign Up Today.
Market Capitalization
Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.
Formula: Market Cap = Stock Price * Shares Outstanding
Full DefinitionRelated Stocks
| Company | Market Cap |
|---|---|
| Kyverna Therapeutics | 443.81M |
| Sagimet Biosciences | 439.06M |
| Cabaletta Bio | 436.99M |
| SL Science Holding | 427.50M |
| Inhibikase Therapeutics | 426.02M |
| Eupraxia Pharmaceuticals | 418.17M |
| Ocugen | 416.38M |
| Ovid Therapeutics | 414.34M |