Spero Therapeutics, Inc. (SPRO): Shares Outstanding
Figures left out. The filed Shares Outstanding for the year ended 2016-12-31 is not shown: zero share count.
56.41M
As of 2025-12-31
58.15M
As of 2026-06-30
+2.5%
3-year compound annual growth
+14.0%
5-year compound annual growth
| Period ended | Shares Outstanding | Change YoY | Source filing |
|---|---|---|---|
| 2025-12-31 | 56.41M | +3.3% | 2026-03-26, Balance as of period end |
| 2024-12-31 | 54.59M | +3.0% | 2026-03-26, Balance as of period end |
| 2023-12-31 | 53.00M | +1.0% | 2025-03-27, Balance as of period end |
| 2022-12-31 | 52.46M | +61.9% | 2024-03-13, Balance as of period end |
| 2021-12-31 | 32.39M | +10.7% | 2023-03-30, Balance as of period end |
| 2020-12-31 | 29.26M | n/c | 2022-03-31, Balance as of period end |
| 2019-12-31 | 19.19M | +11.5% | 2021-03-11, Balance as of period end |
| 2018-12-31 | 17.21M | +19.7% | 2020-03-16, Balance as of period end |
| 2017-12-31 | 14.37M | n/a | 2019-03-14, Balance as of period end |