Quick Answer
INSMED Inc reported Shares Outstanding of 214.26 million shares for fiscal year 2025.
INSMED Inc Shares Outstanding — Annual History
| Fiscal Year | Shares Outstanding | YoY Change |
|---|---|---|
| 2025 | 214.26M | +19.4% |
| 2024 | 179.38M | +21.2% |
| 2023 | 147.98M | +9.1% |
| 2022 | 135.65M | +14.2% |
| 2021 | 118.74M | +15.5% |
| 2020 | 102.76M | +14.6% |
| 2019 | 89.68M | +16.0% |
| 2018 | 77.31M | +0.9% |
| 2017 | 76.61M | +23.5% |
| 2016 | 62.02M | +0.3% |
| 2015 | 61.81M | +24.1% |
| 2014 | 49.81M | +27.3% |
| 2013 | 39.14M | +24.3% |
| 2012 | 31.49M | +26.8% |
| 2011 | 24.83M | +58.6% |
| 2010 | 15.65M | — |
Quarterly Shares Outstanding
| Quarter Ending | Shares Outstanding | YoY | QoQ |
|---|---|---|---|
| September 30, 2025 | 212.58M | +18.9% | +0.7% |
| June 30, 2025 | 211.11M | +26.7% | +16.1% |
| March 31, 2025 | 181.90M | +22.4% | +1.4% |
| December 31, 2024 | 179.38M | +21.2% | +0.3% |
| September 30, 2024 | 178.85M | +25.0% | +7.3% |
| June 30, 2024 | 166.67M | +16.8% | +12.2% |
| March 31, 2024 | 148.56M | +8.9% | +0.4% |
| December 31, 2023 | 147.98M | +9.1% | +3.4% |
- INSMED Inc showed an increase of +19.4% in Shares Outstanding compared to the prior fiscal year.
- Over the 2010–2025 period, INSMED Inc’s shares outstanding has grown by 1268.7% (from 15.65 million shares to 214.26 million shares).
- The most recent figure is from INSMED Inc’s fiscal year 2025 report (Form 10-K), filed with the SEC on February 19, 2026.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
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