Shares Outstanding for Insmed (INSM)
According to Insmed's latest reported financial statements, the company's latest reported diluted shares outstanding is 213.64M. Diluted weighted-average shares outstanding is the share count used to compute per-share metrics like EPS. Buybacks lower it; new issuance, stock-based compensation, and convertible securities raise it. Multiply by the stock price for market capitalization.
Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .
INSM
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Latest period
213.64M
YoY change
+30.2%
5Y CAGR
+17.0%
Peak year (2025)
213.64M
Latest annual
213.64M
Shares Outstanding history chart for Insmed (INSM) from 1999 to 2025
Shares Outstanding history table for Insmed (INSM) from 1999 to 2025
| Fiscal year | Period ended | Reported | Shares Outstanding | YoY |
|---|---|---|---|---|
| 2025 | 213.64M | +30.2% | ||
| 2024 | 164.04M | +16.8% | ||
| 2023 | 140.43M | +14.1% | ||
| 2022 | 123.03M | +9.7% | ||
| 2021 | 112.11M | +14.9% | ||
| 2020 | 97.61M | +15.4% | ||
| 2019 | 84.56M | +10.0% | ||
| 2018 | 76.89M | +15.5% | ||
| 2017 | 66.58M | +7.6% | ||
| 2016 | 61.89M | +5.6% | ||
| 2015 | 58.63M | +36.1% | ||
| 2014 | 43.09M | +23.2% | ||
| 2013 | 34.98M | +31.8% | ||
| 2012 | 26.55M | +13.7% | ||
| 2011 | 23.35M | +76.2% | ||
| 2010 | 13.25M | +4.1% | ||
| 2009 | 12.73M | +4.2% | ||
| 2008 | 12.21M | +6.5% | ||
| 2007 | 11.47M | +20.3% | ||
| 2006 | 9.53M | +95.6% | ||
| 2005 | 4.87M | +24.5% | ||
| 2004 | 3.92M | +10.0% | ||
| 2003 | 3.56M | +7.7% | ||
| 2002 | 3.31M | +0.6% | ||
| 2001 | 3.29M | +79.4% | ||
| 2000 | 1.83M | +480.6% | ||
| 1999 | 315,500 | — |
Shares Outstanding values are taken from Insmed's reported income statements (10-Q quarterly and 10-K annual filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the date the filing was reported; YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
Analysis
In 2025, Insmed (INSM) diluted shares outstanding totalled 213.64M – surged 30.2% year-over-year.
Through 2020–2025 (5 years), Insmed diluted shares outstanding delivered a +17.0% annualised rate; sustaining 26 straight years of year-over-year growth.
213.64M stands as the all-time-high annual diluted shares outstanding, posted in 2025, against a low of 315,500 during 1999.
Insmed (INSM) sits 9th of 8 Healthcare peers we track on this metric, against a peer median of 1.34B.
Insmed Shares Outstanding by Year
Insmed Shares Outstanding 2025: 213.64M
Insmed diluted shares outstanding in 2025 was 213.64M, surged 30.2% from 2024. This figure represents the highest annual value in the available history.
Insmed Shares Outstanding 2024: 164.04M
Insmed diluted shares outstanding in 2024 was 164.04M, grew 16.8% from 2023.
Insmed Shares Outstanding 2023: 140.43M
Insmed diluted shares outstanding in 2023 was 140.43M, grew 14.1% from 2022.
Insmed Shares Outstanding 2022: 123.03M
Insmed diluted shares outstanding in 2022 was 123.03M, grew 9.7% from 2021.
Insmed Shares Outstanding 2021: 112.11M
Insmed diluted shares outstanding in 2021 was 112.11M.
See more financial history for Insmed (INSM).
Sector peers — Shares Outstanding
Companies in the same sector as Insmed, ranked by their latest diluted shares outstanding.
| Company | Shares Outstanding | Sector |
|---|---|---|
| Novo Nordisk A/S (NVO) | 4.45B | Healthcare |
| Merck & Co., Inc. (MRK) | 2.51B | Healthcare |
| Johnson & Johnson (JNJ) | 2.43B | Healthcare |
| AbbVie Inc. (ABBV) | 1.77B | Healthcare |
| UnitedHealth Group Incorporated (UNH) | 910.00M | Healthcare |
| Eli Lilly and Company (LLY) | 898.00M | Healthcare |
| AstraZeneca PLC (AZN) | 781.00M | Healthcare |
| Amgen Inc. (AMGN) | 542.00M | Healthcare |
Frequently asked questions
What is Insmed's diluted shares outstanding?
- Latest reported diluted shares outstanding for Insmed (INSM) is 213.64M (period ending December 31, 2025).
How has Insmed diluted shares outstanding changed year-over-year?
- Insmed (INSM) diluted shares outstanding changed +30.2% year-over-year on the latest annual filing.
What is the long-term growth rate of Insmed diluted shares outstanding?
- Insmed (INSM) diluted shares outstanding compound annual growth rate is +17.0% over the most recent 5 years available.
When did Insmed diluted shares outstanding hit its highest annual value?
- Insmed diluted shares outstanding reached its highest annual value of 213.64M in 2025.
What was Insmed diluted shares outstanding in 2024?
- Insmed (INSM) diluted shares outstanding in 2024 was 164.04M.
What was Insmed diluted shares outstanding in 2025?
- Insmed (INSM) diluted shares outstanding in 2025 was 213.64M.
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