Quick Answer
Karyopharm Therapeutics Inc. reported Shares Outstanding of 18.31 million shares for fiscal year 2025.
Karyopharm Therapeutics Inc. Shares Outstanding — Annual History
| Fiscal Year | Shares Outstanding | YoY Change |
|---|---|---|
| 2025 | 18.31M | +117.7% |
| 2024 | 8.41M | -92.7% |
| 2023 | 114.92M | +1.5% |
| 2022 | 113.21M | +49.5% |
| 2021 | 75.75M | +2.5% |
| 2020 | 73.92M | +13.1% |
| 2019 | 65.37M | +7.5% |
| 2018 | 60.83M | +22.8% |
| 2017 | 49.53M | +18.3% |
| 2016 | 41.89M | +16.8% |
| 2015 | 35.86M | +9.7% |
| 2014 | 32.70M | +10.5% |
| 2013 | 29.59M | +1293.4% |
| 2012 | 2.12M | — |
Quarterly Shares Outstanding
| Quarter Ending | Shares Outstanding | YoY | QoQ |
|---|---|---|---|
| September 30, 2025 | 8.70M | -93.1% | +0.6% |
| June 30, 2025 | 8.65M | -93.1% | +0.9% |
| March 31, 2025 | 8.57M | -92.6% | +1.8% |
| December 31, 2024 | 8.41M | -92.7% | -93.3% |
| September 30, 2024 | 125.30M | +9.4% | +0.5% |
| June 30, 2024 | 124.64M | +9.0% | +7.0% |
| March 31, 2024 | 116.46M | +2.2% | +1.3% |
| December 31, 2023 | 114.92M | +1.5% | +0.3% |
- Karyopharm Therapeutics Inc. showed an increase of +117.7% in Shares Outstanding compared to the prior fiscal year.
- Over the 2012–2025 period, Karyopharm Therapeutics Inc.’s shares outstanding has grown by 762.3% (from 2.12 million shares to 18.31 million shares).
- The most recent figure is from Karyopharm Therapeutics Inc.’s fiscal year 2025 report (Form 10-K), filed with the SEC on February 13, 2026.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
Last verified: