Insmed Incorporated

NasdaqGS:INSM Stock Report

Market Cap: US$33.5b

Insmed Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:INSM Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
08 Jan 26SellUS$549,494Michael SmithIndividual3,158US$175.07
08 Jan 26SellUS$808,733Sara BonsteinIndividual4,642US$175.07
08 Jan 26SellUS$746,711Roger AdsettIndividual4,290US$175.07
08 Jan 26SellUS$1,683,950William LewisIndividual9,676US$175.07
08 Jan 26SellUS$820,707Martina FlammerIndividual4,709US$175.84
05 Dec 25SellUS$4,100,200Melvin SharokyIndividual20,000US$205.01
24 Nov 25SellUS$1,022,900Elizabeth AndersonIndividual5,000US$204.58
17 Nov 25SellUS$14,692,249Leo LeeIndividual75,000US$197.40
14 Nov 25SellUS$1,958,700Elizabeth AndersonIndividual10,000US$195.87
12 Sep 25SellUS$1,453,900Melvin SharokyIndividual10,000US$145.39
20 Aug 25SellUS$1,295,000Melvin SharokyIndividual10,000US$129.50
19 Aug 25SellUS$3,189,586Roger AdsettIndividual25,000US$128.27
14 Aug 25SellUS$1,273,363S. SchaefferIndividual10,000US$128.16
12 Aug 25SellUS$1,215,800Melvin SharokyIndividual10,000US$121.58
11 Jul 25SellUS$72,115Michael SmithIndividual748US$96.41
03 Jun 25SellUS$103,532Michael SmithIndividual1,448US$71.50
03 Jun 25SellUS$117,403S. SchaefferIndividual1,642US$71.50
03 Jun 25SellUS$112,899Sara BonsteinIndividual1,579US$71.50
03 Jun 25SellUS$132,990Roger AdsettIndividual1,860US$71.50
03 Jun 25SellUS$120,549Martina FlammerIndividual1,686US$71.50
03 Jun 25SellUS$391,248William LewisIndividual5,472US$71.50
21 May 25BuyUS$201,694Clarissa DesjardinsIndividual3,025US$66.87
14 May 25SellUS$325,673Michael SmithIndividual4,816US$67.81
14 May 25SellUS$633,654Roger AdsettIndividual9,407US$67.81
14 May 25SellUS$708,681Sara BonsteinIndividual10,504US$67.81
14 May 25SellUS$684,570Martina FlammerIndividual10,152US$67.81
14 May 25SellUS$1,415,573William LewisIndividual21,213US$67.70
14 May 25SellUS$420,076S. SchaefferIndividual6,235US$67.81
07 Feb 25SellUS$3,697,402Roger AdsettIndividual45,705US$80.90
07 Feb 25SellUS$2,678,925Martina FlammerIndividual33,115US$80.90
07 Feb 25SellUS$789John WiseIndividual10US$78.91
06 Feb 25SellUS$1,670,585Michael SmithIndividual20,650US$80.90
06 Feb 25SellUS$2,296,751Sara BonsteinIndividual28,390US$80.90
06 Feb 25SellUS$639,919John WiseIndividual7,910US$80.90
06 Feb 25SellUS$6,419,415William LewisIndividual79,350US$80.90
06 Feb 25SellUS$1,901,150S. SchaefferIndividual23,500US$80.90

Insider Trading Volume

Insider Buying: INSM insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of INSM?
Owner TypeNumber of SharesOwnership Percentage
State or Government83,7520.0382%
Individual Insiders1,401,7740.64%
Hedge Funds20,457,4459.34%
Institutions197,034,89090%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 19.2%.

Top Shareholders

Top 25 shareholders own 71.94% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
9.88%
The Vanguard Group, Inc.
21,076,344US$3.3b5.72%0.04%
9.59%
Darwin Global Management Limited
20,457,445US$3.2b5.75%66.26%
9.23%
JP Morgan Asset Management
19,679,989US$3.1b47.7%0.27%
6.62%
BlackRock, Inc.
14,121,188US$2.2b14.2%0.03%
4.25%
FMR LLC
9,063,248US$1.4b80.5%0.07%
3.54%
Capital Research and Management Company
7,553,853US$1.2b1%0.05%
3.25%
T. Rowe Price Group, Inc.
6,932,063US$1.1b-38.3%0.09%
3.14%
Baker Bros. Advisors LP
6,703,484US$1.1b-13.1%5.79%
2.65%
D. E. Shaw & Co., L.P.
5,657,464US$887.5m65.3%0.76%
2.32%
Artisan Partners Limited Partnership
4,937,683US$774.6m49%0.52%
1.87%
State Street Global Advisors, Inc.
3,984,354US$625.0m-6.86%0.02%
1.76%
Geode Capital Management, LLC
3,759,427US$589.7m12.5%0.03%
1.58%
JPMorgan Chase & Co.
3,367,667US$528.3m45.9%0.07%
1.52%
Orbis Investment Management Limited
3,250,868US$510.0m113%1.23%
1.45%
RTW Investments, LP
3,084,558US$483.9m0%5.52%
1.28%
Columbia Management Investment Advisers, LLC
2,721,879US$427.0m-7.98%0.08%
1.14%
Duquesne Family Office LLC
2,423,435US$380.2m7.54%8.26%
1.1%
Millennium Management LLC
2,339,692US$367.0m10.3%0.25%
0.96%
Citadel Advisors LLC
2,057,641US$322.8m34.2%0.26%
0.91%
Norges Bank Investment Management
1,934,899US$303.5m0%0.02%
0.82%
Franklin Resources, Inc.
1,755,078US$275.3m-3.01%0.08%
0.81%
Invesco Ltd.
1,719,651US$269.8m5.44%0.06%
0.8%
William Blair Investment Management, LLC
1,706,500US$267.7m-6.08%0.31%
0.75%
Integral Health Asset Management, LLC
1,600,000US$251.0m0%16.22%
0.72%
Qube Research & Technologies Ltd
1,544,315US$242.3m42.7%0.35%

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/02/02 19:24
End of Day Share Price 2026/01/30 00:00
Earnings2025/09/30
Annual Earnings2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Insmed Incorporated is covered by 40 analysts. 18 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Neena Bitritto-GargBaird
Anita DushyanthBerenberg
Jason ZemanskyBofA Global Research