PRTA
Prothena Corporation plc
8.50$
-0.8%
vs. previous close
Closing price · As of: Sep 21, 2026
Statements
Balance Sheet
All figures as the change versus the prior period, in percent. Periods without a positive comparison base stay empty.
Tick rows to compare them in a chart (up to 4)
| Line item | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| – | +26.7% | +19.4% | +7.9% | +0.5% | -15.9% | -20.6% | +83.0% | +24.4% | -8.1% | -21.4% | -40.3% | |
| – | +26.1% | +3.7% | +8.9% | +1.2% | -12.3% | -20.9% | +95.4% | +23.0% | -11.1% | -24.1% | -35.1% | |
| – | +26.2% | +4.4% | +7.9% | +2.4% | -12.1% | -21.4% | +96.1% | +22.7% | -12.9% | -23.8% | -34.8% | |
| – | +26.2% | +4.4% | +7.9% | +2.4% | -12.1% | -21.4% | +96.1% | +22.7% | -12.9% | -23.8% | -34.8% | |
| – | -71.1% | -65.0% | +34.8% | -99.2% | +3,300.0% | -77.9% | -13.3% | +376.9% | +8,221.0% | -100.0% | – | |
| – | – | – | – | – | -6,800,100.0% | – | -101.0% | – | – | – | – | |
| – | +23.7% | +1,361.7% | -2.6% | -3.9% | -92.7% | -34.2% | -21.1% | +298.0% | – | – | – | |
| – | – | – | – | – | – | – | – | – | – | – | – | |
| – | – | – | – | – | – | – | – | – | – | – | – | |
| – | +72.7% | +285.0% | -5.7% | +97.2% | -16.8% | +1.8% | -3.8% | -5.1% | -0.7% | -55.4% | -23.0% | |
| – | +84.5% | +84.9% | -9.0% | -60.1% | +18.7% | +45.9% | +29.4% | +49.9% | +13.4% | -14.7% | -15.8% | |
| – | +0.0% | +0.6% | -98.6% | +124.4% | +210.1% | +8.1% | +7.8% | +9.0% | -82.8% | +134.3% | +10.6% | |
| – | -4.3% | +189.2% | +4.3% | -89.2% | -15.5% | +231.5% | -10.3% | +151.2% | +173.9% | -69.4% | -24.4% | |
| – | – | – | -8.4% | – | – | – | – | – | – | – | – | |
| – | +24.4% | +1.3% | +11.4% | -20.7% | -15.5% | -32.6% | +153.3% | +33.5% | -9.8% | -13.3% | -42.4% | |
| – | – | – | – | – | – | – | – | – | – | – | – | |
| – | +22.9% | +13.3% | +9.6% | +5.1% | +0.8% | +0.1% | +21.4% | -2.3% | +12.3% | +1.0% | +0.1% |
Data as of: September 21, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.