PRTA
Prothena Corporation plc
8.60$
+1.4%
vs. previous close
Closing price · As of: Sep 18, 2026
Statements
Cash Flow
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| – | – | – | – | – | – | – | – | -217.5% | – | – | – | |
| – | +8.5% | +201.1% | +26.4% | +4.9% | +112.1% | -77.8% | -26.4% | -33.3% | +24.7% | -3.8% | +0.2% | |
| – | +86.1% | +139.4% | +7.4% | +0.9% | -12.7% | -6.7% | +12.0% | +27.0% | +30.6% | +12.3% | -18.1% | |
| – | +35.2% | +251.6% | +8.7% | -104.5% | – | – | – | +341.5% | – | – | – | |
| – | +732.7% | +64.6% | -137.9% | – | -104.7% | – | -399.1% | – | – | – | – | |
| – | +162.7% | +1,104.3% | -78.2% | -51.2% | -68.6% | -64.7% | +193.4% | -19.3% | +505.6% | -89.4% | -53.7% | |
| – | +177.0% | +1,104.3% | -78.8% | -50.9% | -68.4% | -64.2% | +193.4% | -19.3% | +497.6% | -89.3% | -53.7% | |
| – | – | – | – | – | – | – | – | – | – | – | – | |
| – | +16.2% | +1.7% | +20.7% | -73.6% | -99.5% | -5.7% | +43,431.6% | – | – | – | -60.6% | |
| – | +0.0% | +0.0% | +1,533.1% | +59.4% | – | – | – | – | – | – | – | |
| – | +19.3% | +9.6% | +7.2% | -75.8% | -99.4% | -5.7% | +88,426.5% | +26.9% | -81.3% | -96.6% | -108.9% | |
| – | -34.1% | -73.5% | +50.5% | -67.3% | -630.8% | – | – | -53.2% | -169.3% | – | – | |
| – | – | – | – | – | – | – | – | -218.7% | – | – | – |
Data as of: September 18, 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.