Prothena Corporation plc (PRTA)
NASDAQ: PRTA · Real-Time Price · USD
11.07
-0.09 (-0.81%)
At close: Dec 5, 2025, 4:00 PM EST
11.00
-0.07 (-0.63%)
After-hours: Dec 5, 2025, 6:34 PM EST
Prothena Corporation Market Cap
Prothena Corporation has a market cap or net worth of $595.9 million as of December 5, 2025. Its market cap has decreased by -18.03% in one year.
Market Cap
595.90M
Enterprise Value
274.14M
1-Year Change
-18.03%
Ranking
Category
Stock Price
$11.07
Market Cap Chart
Since December 21, 2012, Prothena Corporation's market cap has increased from $127.30M to $595.90M, an increase of 368.11%. That is a compound annual growth rate of 12.65%.
Market Cap History
| Date | Market Cap | % Change |
|---|---|---|
| Dec 4, 2025 | 600.70M | -19.40% |
| 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 |
|---|---|
| Eli Lilly and Company | 908.36B |
| Johnson & Johnson | 487.83B |
| AbbVie | 404.22B |
| UnitedHealth Group | 302.09B |
| AstraZeneca | 279.81B |
| Novartis AG | 255.73B |
| Merck & Co. | 250.41B |
| Abbott Laboratories | 218.05B |