Quick Answer
Seres Therapeutics, Inc. reported Shares Outstanding of 9.56 million shares for fiscal year 2025.
Seres Therapeutics, Inc. Shares Outstanding — Annual History
| Fiscal Year | Shares Outstanding | YoY Change |
|---|---|---|
| 2025 | 9.56M | +10.5% |
| 2024 | 8.65M | -93.6% |
| 2023 | 135.04M | +7.8% |
| 2022 | 125.22M | +36.3% |
| 2021 | 91.89M | +0.5% |
| 2020 | 91.46M | +30.4% |
| 2019 | 70.14M | +71.3% |
| 2018 | 40.94M | +0.9% |
| 2017 | 40.57M | +0.5% |
| 2016 | 40.36M | +3.3% |
| 2015 | 39.08M | +467.2% |
| 2014 | 6.89M | — |
Quarterly Shares Outstanding
| Quarter Ending | Shares Outstanding | YoY | QoQ |
|---|---|---|---|
| September 30, 2025 | 8.76M | -94.9% | +0.1% |
| June 30, 2025 | 8.75M | -94.2% | +0.3% |
| March 31, 2025 | 8.73M | -94.2% | +0.9% |
| December 31, 2024 | 8.65M | -93.6% | -94.9% |
| September 30, 2024 | 170.20M | +32.3% | +12.2% |
| June 30, 2024 | 151.63M | +18.4% | +0.1% |
| March 31, 2024 | 151.44M | +19.6% | +12.1% |
| December 31, 2023 | 135.04M | +7.8% | +5.0% |
- Seres Therapeutics, Inc. showed an increase of +10.5% in Shares Outstanding compared to the prior fiscal year.
- Over the 2014–2025 period, Seres Therapeutics, Inc.’s shares outstanding has grown by 38.7% (from 6.89 million shares to 9.56 million shares).
- The most recent figure is from Seres Therapeutics, Inc.’s fiscal year 2025 report (Form 10-K), filed with the SEC on March 12, 2026.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
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