Company / Income Tax
PROTHENA CORP PUBLIC LTD CO Income Tax History
FY2016-FY2025 · Annual data · Source: SEC filings
At a glance
Latest annual filing availableLatest Income Tax
-$13.5M
FY2025
5-year range
-$13.5M / $4.9M
FY2021-FY2025
Trend
-55.4%
vs FY2024
Sector context
Sector data unavailable
Latest sector comparison
What the data says
Income Tax has fluctuated over the past 10 years, ranging from -$13M in FY2025 to $5M in FY2023.
Based on SEC 10-K filings.
-$13M in FY2025.
Improved from $5M to -$13M over the past 2 years.
Income Tax over time
Growth rates
- 3-Year CAGR
- -
- 5-Year CAGR
- -
- 10-Year CAGR
- -
Key checks
Key Insights
- In FY2025, income tax decreased 55.4% year-over-year.
- Peak income tax was recorded in FY2023.
Company context
Key Data Points
- Low Piotroski F-Score: 2/9 (multiple financial health concerns)
- High earnings quality (cash-backed earnings)
Data sourced from SEC EDGAR filings. Not investment advice.
Annual data
| Year | Income TaxValue | YoY GrowthYoY |
|---|---|---|
| FY2025 | -$13.5M | -55.4% |
| FY2024 | -$8.7M | -275.0% |
| FY2023 | $4.9M | +1847.7% |
| FY2022 | -$283.0K | -174.7% |
| FY2021 | $379.0K | +180.6% |
| FY2020 | -$470.0K | +89.2% |
| FY2019 | -$4.4M | -481.6% |
| FY2018 | $1.1M | +63.2% |
| FY2017 | $701.0K | -13.6% |
| FY2016 | $811.0K | +95.4% |
As of FY2025 · SEC 10-K Annual Filings · Updated Jun 28, 2026