Quick Answer
Summit Therapeutics Inc. reported Shares Outstanding of 775.37 million shares for fiscal year 2025.
Summit Therapeutics Inc. Shares Outstanding — Annual History
| Fiscal Year | Shares Outstanding | YoY Change |
|---|---|---|
| 2025 | 775.37M | +5.1% |
| 2024 | 737.63M | +5.1% |
| 2023 | 701.66M | +232.4% |
| 2022 | 211.09M | +115.3% |
| 2021 | 98.04M | +18.7% |
| 2020 | 82.58M | +22.8% |
| 2020 | 67.23M | +0.1% |
| 2019 | 67.18M | — |
Quarterly Shares Outstanding
| Quarter Ending | Shares Outstanding | YoY | QoQ |
|---|---|---|---|
| September 30, 2025 | 744.44M | +1.0% | +0.2% |
| June 30, 2025 | 742.81M | +2.6% | +0.2% |
| March 31, 2025 | 741.61M | +5.6% | +0.5% |
| December 31, 2024 | 737.63M | +5.1% | +0.1% |
| September 30, 2024 | 737.09M | +5.6% | +1.8% |
| June 30, 2024 | 724.32M | +3.8% | +3.2% |
| March 31, 2024 | 701.97M | +0.6% | +0.0% |
| December 31, 2023 | 701.66M | +232.4% | +0.5% |
- Summit Therapeutics Inc. showed an increase of +5.1% in Shares Outstanding compared to the prior fiscal year.
- Over the 2019–2025 period, Summit Therapeutics Inc.’s shares outstanding has grown by 1054.2% (from 67.18 million shares to 775.37 million shares).
- The most recent figure is from Summit Therapeutics Inc.’s fiscal year 2025 report (Form 10-K), filed with the SEC on February 23, 2026.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
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