Prothena Corp Public Ltd Co (PRTA): Shares Outstanding
53.83M
As of 2025-12-31
51.74M
As of 2026-06-30
+1.1%
3-year compound annual growth
+6.2%
5-year compound annual growth
+5.4%
10-year compound annual growth
| Period ended | Shares Outstanding | Change YoY | Source filing |
|---|---|---|---|
| 2025-12-31 | 53.83M | 0.0% | 2026-02-27, Balance as of period end |
| 2024-12-31 | 53.83M | +0.3% | 2026-02-27, Balance as of period end |
| 2023-12-31 | 53.68M | +3.0% | 2025-02-27, Balance as of period end |
| 2022-12-31 | 52.10M | +11.7% | 2024-02-22, Balance as of period end |
| 2021-12-31 | 46.66M | +16.9% | 2023-02-28, Balance as of period end |
| 2020-12-31 | 39.92M | +0.1% | 2022-02-25, Balance as of period end |
| 2019-12-31 | 39.90M | +0.1% | 2021-02-26, Balance as of period end |
| 2018-12-31 | 39.86M | +3.6% | 2020-03-03, Balance as of period end |
| 2017-12-31 | 38.48M | +10.7% | 2019-03-15, Balance as of period end |
| 2016-12-31 | 34.75M | +9.5% | 2018-02-26, Balance as of period end |
| 2015-12-31 | 31.74M | +15.9% | 2017-02-27, Balance as of period end |
| 2014-12-31 | 27.39M | +25.3% | 2016-02-25, Balance as of period end |
| 2013-12-31 | 21.86M | +23.6% | 2015-03-13, Balance as of period end |
| 2012-12-31 | 17.68M | n/a | 2014-03-07, Balance as of period end |