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
Date	Value	Name	Entity	Shares	Max Price
09 Jan 24	SellUS$283,955	William Lewis	Individual	9,887	US$28.72
09 Jan 24	SellUS$68,247	Michael Smith	Individual	2,373	US$28.76
09 Jan 24	SellUS$112,232	Roger Adsett	Individual	3,837	US$29.25
09 Jan 24	SellUS$136,782	Martina Flammer	Individual	4,715	US$29.01
09 Jan 24	SellUS$131,222	Sara Bonstein	Individual	4,497	US$29.18
09 Jan 24	SellUS$90,962	S. Schaeffer	Individual	3,165	US$28.74
09 Jan 24	SellUS$53,560	John Wise	Individual	1,861	US$28.78
05 Jan 24	SellUS$88,864	Roger Adsett	Individual	3,042	US$29.21
05 Jan 24	SellUS$18,374	Michael Smith	Individual	627	US$29.31
05 Jan 24	SellUS$42,661	S. Schaeffer	Individual	1,457	US$29.28
05 Jan 24	SellUS$40,478	Martina Flammer	Individual	1,386	US$29.21
05 Jan 24	SellUS$204,195	William Lewis	Individual	6,979	US$29.26
11 Jul 23	SellUS$14,933	Michael Smith	Individual	740	US$20.18
25 May 23	SellUS$63,786	John Wise	Individual	3,366	US$18.95
17 May 23	SellUS$68,214	Michael Smith	Individual	3,635	US$19.24
17 May 23	SellUS$93,438	S. Schaeffer	Individual	5,019	US$19.22
17 May 23	SellUS$127,191	Roger Adsett	Individual	6,816	US$19.27
17 May 23	SellUS$53,224	John Wise	Individual	2,887	US$19.29
17 May 23	SellUS$313,312	William Lewis	Individual	16,861	US$19.23
16 May 23	SellUS$72,390	Sara Bonstein	Individual	3,820	US$19.30
16 May 23	SellUS$81,328	Martina Flammer	Individual	4,294	US$19.28
15 May 23	BuyUS$385,800	Melvin Sharoky	Individual	20,000	US$19.29

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of INSM?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	13,388	0.0087%
Individual Insiders	1,389,182	0.903%
Institutions	152,479,824	99.1%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 8.9%.

Top Shareholders

Top 25 shareholders own 71.72% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
11.2%	T. Rowe Price Group, Inc.	16,614,377	US$412.0m	-11.3%	0.04%
9.51%	The Vanguard Group, Inc.	14,125,521	US$350.3m	-1.53%	0.01%
7.74%	BlackRock, Inc.	11,492,282	US$285.0m	10.6%	0.01%
3.99%	State Street Global Advisors, Inc.	5,929,933	US$147.1m	17.3%	0.01%
3.71%	Palo Alto Investors LP	5,511,721	US$136.7m	-6.41%	15.59%
3.6%	Deep Track Capital, LP	5,350,000	US$132.7m	-10.8%	4.7%
3.41%	FMR LLC	5,072,868	US$125.8m	18.1%	0.01%
3.13%	Macquarie Investment Management Business Trust	4,651,492	US$115.4m	-0.05%	0.14%
2.88%	William Blair Investment Management, LLC	4,271,771	US$105.9m	0.35%	0.15%
2.27%	Franklin Resources, Inc.	3,369,461	US$83.6m	-0.48%	0.03%
2.07%	Geode Capital Management, LLC	3,069,378	US$76.1m	6.81%	0.01%
1.81%	Suvretta Capital Management, LLC	2,684,487	US$66.6m	-22.1%	3.01%
1.57%	Loomis Sayles & Company, L.P.	2,331,505	US$57.8m	-2.16%	0.09%
1.57%	BNY Mellon Asset Management	2,326,627	US$57.7m	-7.15%	0.01%
1.54%	Bellevue Asset Management AG	2,290,958	US$56.8m	-27.6%	0.68%
1.54%	Columbia Management Investment Advisers, LLC	2,282,491	US$56.6m	21.6%	0.01%
1.45%	AllianceBernstein L.P.	2,147,902	US$53.3m	-6.4%	0.02%
1.32%	Pictet Asset Management Limited	1,961,801	US$48.7m	-18.7%	0.04%
1.26%	RTW Investments, LP	1,865,108	US$46.3m	0%	0.85%
1.13%	Emerald Advisers, LLC	1,679,193	US$41.6m	-0.18%	1.05%
1.09%	Holocene Advisors, LP	1,614,862	US$40.0m	-10.7%	0.16%
1.08%	Millennium Management LLC	1,605,001	US$39.8m	-26.2%	0.04%
0.98%	Norges Bank Investment Management	1,453,025	US$36.0m	8.13%	no data
0.97%	Marshall Wace LLP	1,439,769	US$35.7m	154%	0.08%
0.94%	Janus Henderson Group plc	1,403,091	US$34.8m	-26.7%	0.02%