Company / Shares Outstanding
PROTHENA CORP PUBLIC LTD CO Shares Outstanding History
FY2016-FY2025 · Annual data · Source: SEC filings
At a glance
Latest annual filing availableLatest Shares Outstanding
53.8M
FY2025
5-year range
39.9M / 53.8M
FY2021-FY2025
Trend
+0.3%
vs FY2024
Sector context
Sector data unavailable
Latest sector comparison
What the data says
Shares Outstanding has increased for 9 consecutive years, from 31744102.00 in FY2016 to 53826982.00 in FY2025.
Based on SEC 10-K filings.
53826982.00 in FY2025 with a 5-year CAGR of +6.2%.
Increased from 52103608.00 to 53826982.00 over the past 2 years.
Shares Outstanding over time
Growth rates
- 3-Year CAGR
- +4.9%
- 5-Year CAGR
- +6.2%
- 10-Year CAGR
- -
Key checks
Key Insights
- PROTHENA CORP PUBLIC LTD CO's shares outstanding has grown for 9 consecutive years.
- In FY2025, shares outstanding increased 0.3% year-over-year.
- Lowest shares outstanding in the period was in FY2016.
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 | Shares OutstandingValue | YoY GrowthYoY |
|---|---|---|
| FY2025 | 53.8M | +0.3% |
| FY2024 | 53.7M | +3.0% |
| FY2023 | 52.1M | +11.7% |
| FY2022 | 46.7M | +16.9% |
| FY2021 | 39.9M | +0.1% |
| FY2020 | 39.9M | +0.1% |
| FY2019 | 39.9M | +3.6% |
| FY2018 | 38.5M | +10.7% |
| FY2017 | 34.8M | +9.5% |
| FY2016 | 31.7M | +15.9% |
As of FY2025 · SEC 10-K Annual Filings · Updated Jun 28, 2026