PROTHENA CORP PUBLIC LTD CO
Company Stats
- Market Cap
- $430.2M
- as of Sep 30, 2026
- Shares Outstanding
- 51.3M
- Free Float
- 52.8%
Income Statement
- Revenue
- $9.7M
- Operating Income
- -$214.6M
- Net Income
- -$244.1M
- EBITDA
- -$213.7M
- Revenue Growth, 3Y
- -43.6%
Balance Sheet
- Cash & Equivalents
- $307.5M
Returns & Capital
- SBC, 3Y Avg
- $41.5M
Cash Flow by Year
| Year | Revenue | FCF | Margin |
|---|---|---|---|
| FY2025 | $9.7M | — | — |
| FY2024 | $135.2M | — | — |
| FY2023 | $91.4M | — | — |
| FY2022 | $53.9M | — | — |
| FY2021 | $200.6M | — | — |
Annual filing data through FY ended December 31, 2025; shares and float as of October 31, 2026. Yields and enterprise value use the calculated market cap above, at its as-of date. Ratios are our calculations from reported figures.
Earnings
Other Coverage
October 18, 2026
Insider Signal
Microcap Insider Buying: Week Ending October 16, 2026
October 11, 2026
Insider Signal
Microcap Insider Buying: Week Ending October 9, 2026
October 5, 2026
Insider Signal
Microcap Insider Buying: Week Ending October 2, 2026
September 28, 2026
QBook
Stronger demand supports expansion as pricing diverges
August 14, 2026
Industry Earnings Roundup
Healthcare Earnings: Demand Surges, Costs Bite Back
Microcap Insider Buying: Week Ending October 16, 2026
October 11, 2026
Insider Signal
Microcap Insider Buying: Week Ending October 9, 2026
October 5, 2026
Insider Signal
Microcap Insider Buying: Week Ending October 2, 2026
September 28, 2026
QBook
Stronger demand supports expansion as pricing diverges
August 14, 2026
Industry Earnings Roundup
Healthcare Earnings: Demand Surges, Costs Bite Back