Prothena (PRTA) P/E (2012 - 2026)
Prothena (PRTA) P/E from Dec 31, 2012 to Jul 21, 2026. The TTM Prothena (PRTA) P/E is -3.13. You can export chart.
All data is split-adjusted. You can find the most accurate data from the reports on the SEC official website. We recommend verify information using official company filings before making investment decisions.
P/E
Annual P/E change of Prothena (PRTA)
| Year | P/E | Change |
|---|---|---|
| 2026 | -3.13 | +48.39% |
| 2025 | -2.11 | -65.42% |
| 2024 | -6.09 | -76.88% |
| 2023 | -26.34 | +45.31% |
| 2022 | -18.13 | -152.13% |
| 2021 | 34.77 | -906.21% |
| 2020 | -4.31 | -46.95% |
| 2019 | -8.13 | +208.36% |
| 2018 | -2.64 | -70.70% |
| 2017 | -9.00 | -26.94% |
| 2016 | -12.32 | -52.51% |
| 2015 | -25.94 | -87.91% |
| 2014 | -214.57 | +1721.40% |
| 2013 | -11.78 | +11.09% |
| 2012 | -10.60 | N/A |
Comparison Prothena (PRTA) P/E with competitors
Prothena (PRTA) P/E is -3.13.