Insmed Incorporated (INSM) Shares Outstanding

Shares Outstanding

215.85M2.58M+1.21%

April 13, 2026

Summary

Current Value: As of today, INSM has 215.85M outstanding shares, up +1.21% on April 13, 2026
Historical Performance: INSM shares outstanding is up +18.51% year-over-year, up +58.21% over the past 3 years
All-Time High Comparison: INSM shares outstanding is currently at its all-time high
3-Year Low Comparison: INSM shares outstanding is +58.21% above its 3-year low of 136.43M reached on an earlier date

Chart

Performance

INSM Performance
Metric	Date	Value	1Y	3Y	5Y
Shares Outstanding	Apr 13, 26	215.85M	+18.5%	+58.2%	+109.0%
Price	May 4, 26	$140.01	+93.7%	+615.8%	+347.3%
Market Cap	May 4, 26	$30B	+129.5%	+1032.5%	+833.0%
PE Ratio	May 4, 26	-	–	–	–
TTM Revenue	Dec 31, 25	$606.42M	+66.7%	+147.2%	+268.8%
TTM EPS	Dec 31, 25	-$6.40	-14.6%	-64.7%	-113.1%
	May 4, 26	$29.55B	+122.5%	+882.5%	+812.8%
TTM Net Income	Dec 31, 25	-$1.28B	-39.7%	-165.2%	-334.1%
TTM Dividend	May 4, 26	-	–	–	–

Highs

INSM Shares Outstanding Highs Comparison
Period	High	Date	Current
1Y	215.85M	Apr 13, 26	at high
3Y	215.85M	Apr 13, 26	at high
5Y	215.85M	Apr 13, 26	at high
All	215.85M	Apr 13, 26	at high

Lows

INSM Shares Outstanding Lows Comparison
Period	Low	Date	Current
1Y	182.14M	N/A	+18.5%
3Y	136.43M	N/A	+58.2%
5Y	103.28M	N/A	+109.0%
All	2.70M	Mar 30, 00	+7885.1%

History

Month	Value	Change
Apr 2026	215.85M	+0.7%
Dec 2025	214.26M	+19.4%
Dec 2024	179.38M	+21.2%
Dec 2023	147.98M	+9.1%
Dec 2022	135.65M	+14.2%
Dec 2021	118.74M	+15.5%
Dec 2020	102.76M	+14.6%
Dec 2019	89.68M	+16.0%
Dec 2018	77.31M	+0.9%
Dec 2017	76.61M	+23.5%
Dec 2016	62.02M	+0.3%
Dec 2015	61.81M	+24.1%
Dec 2014	49.81M	+27.3%
Dec 2013	39.14M	+24.3%

Month	Value	Change
Dec 2012	31.49M	+26.8%
Dec 2011	24.83M	+58.6%
Dec 2010	15.65M	+20.2%
Dec 2009	13.02M	+6.5%
Oct 2008	12.23M	+0.3%
Dec 2007	12.19M	+20.3%
Dec 2006	10.13M	+52.3%
Dec 2005	6.65M	+48.2%
Dec 2004	4.49M	+16.9%
Dec 2003	3.84M	+15.7%
Dec 2002	3.32M	+0.8%
Dec 2001	3.29M	+0.4%
Dec 2000	3.28M	-

FAQ

What is the current shares outstanding of INSM?
As of today, INSM shares outstanding is 215.85M
What is 1-year change in INSM shares outstanding?
INSM shares outstanding is up +18.51% year-over-year
What is 3-year change in INSM shares outstanding?
INSM shares outstanding is up +58.21% over the past 3 years
How far is INSM shares outstanding from its all-time high?
INSM shares outstanding is currently at its all-time high

Data Sources & References

INSM Official Website www.insmed.com
Most Recent Quarterly Report (10-Q) www.sec.gov/Archives/edgar/data/1104506/000110450626000009/0001104506-26-000009-index.htm
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/1104506/000110450626000009/0001104506-26-000009-index.htm
INSM Profile on Yahoo Finance finance.yahoo.com/quote/INSM
INSM Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/insm