Quick Answer
Aptose Biosciences Inc. reported Shares Outstanding of 2.55 million shares for fiscal year 2025.
Aptose Biosciences Inc. Shares Outstanding — Annual History
| Fiscal Year | Shares Outstanding | YoY Change |
|---|---|---|
| 2025 | 2.55M | +27.2% |
| 2024 | 2.01M | +657.7% |
| 2023 | 264,745 | -95.7% |
| 2022 | 6.16M | -93.3% |
| 2021 | 92.22M | +3.8% |
| 2020 | 88.88M | +16.8% |
| 2019 | 76.11M | +99.4% |
| 2018 | 38.16M | +38.8% |
| 2017 | 27.50M | — |
Quarterly Shares Outstanding
| Quarter Ending | Shares Outstanding | YoY | QoQ |
|---|---|---|---|
| September 30, 2025 | 2.55M | -86.9% | +0.0% |
| June 30, 2025 | 2.55M | -85.9% | +0.0% |
| March 31, 2025 | 2.55M | -83.8% | +27.2% |
| December 31, 2024 | 2.01M | -74.7% | -89.7% |
| September 30, 2024 | 19.52M | +158.8% | +7.8% |
| June 30, 2024 | 18.11M | +184.0% | +15.2% |
| March 31, 2024 | 15.72M | -83.1% | +97.9% |
| December 31, 2023 | 7.94M | +29.0% | +5.3% |
- Aptose Biosciences Inc. showed an increase of +27.2% in Shares Outstanding compared to the prior fiscal year.
- Over the 2017–2025 period, Aptose Biosciences Inc.’s shares outstanding has declined by 90.7% (from 27.50 million shares to 2.55 million shares).
- The most recent figure is from Aptose Biosciences Inc.’s fiscal year 2025 report (Form 10-K), filed with the SEC on March 31, 2026.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
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