INSM

INSMED Inc

Pharmaceutical PreparationsNasdaqLarge accelerated filer

Total Trades

214

Buys

Sells

140

Largest Trade

N/A

Insiders

Institutional Funds

551

Inst. Value

$1M+

Activist Filings

Insider Trades

Insider	Title	Type	Value	Shares	Price	Date
Lewis William	Chair and CEO	EXERCISE	$1M+	113K	$14.24	Oct 31, 2023
Lewis William	Chair and CEO	SELL	$1M+	112K	$24.08	Oct 31, 2023
Smith Michael Alexander	General Counsel	SELL	$1K–$15K	740	$20.18	Jul 13, 2023
Flammer Martina M.D.	Chief Medical Offi…	SELL	$100K–$500K	9K	$19.27	Jun 15, 2023
Adsett Roger	COO	SELL	$100K–$500K	9K	$19.32	Jun 15, 2023
Wise John Drayton	Chief Commercial O…	SELL	$50K–$100K	3K	$18.95	May 26, 2023
Wise John Drayton	Chief Commercial O…	SELL	$50K–$100K	3K	$18.44	May 17, 2023
Smith Michael Alexander	General Counsel	SELL	$50K–$100K	4K	$18.77	May 17, 2023
Schaeffer Orlov S Nicole	Chief People Strat…	SELL	$50K–$100K	5K	$18.62	May 17, 2023
Lewis William	Chair and CEO	SELL	$100K–$500K	17K	$18.58	May 17, 2023
Flammer Martina M.D.	Chief Medical Offi…	SELL	$50K–$100K	4K	$18.94	May 17, 2023
Bonstein Sara	CFO	SELL	$50K–$100K	4K	$18.95	May 17, 2023
Adsett Roger	COO	SELL	$100K–$500K	7K	$18.66	May 17, 2023
SHAROKY MELVIN MD	Director	BUY	$100K–$500K	20K	$19.29	May 17, 2023
Wise John Drayton	Chief Commercial O…	SELL	$1K–$15K	779	$17.96	Jan 12, 2023
Smith Michael Alexander	General Counsel	SELL	$15K–$50K	2K	$17.93	Jan 12, 2023
Schaeffer Orlov S Nicole	Chief People Strat…	SELL	$15K–$50K	2K	$17.95	Jan 12, 2023
Lewis William	Chair and CEO	SELL	$100K–$500K	7K	$18.00	Jan 12, 2023
Flammer Martina M.D.	Chief Medical Offi…	SELL	$50K–$100K	3K	$18.06	Jan 12, 2023
Bonstein Sara	CFO	SELL	$50K–$100K	3K	$18.12	Jan 12, 2023
Adsett Roger	COO	SELL	$50K–$100K	3K	$17.99	Jan 12, 2023
Wise John Drayton	Chief Commercial O…	GRANT	N/A	8K	—	Jan 6, 2023
Wise John Drayton	Chief Commercial O…	SELL	$15K–$50K	1K	$19.74	Jan 6, 2023
Smith Michael Alexander	General Counsel	SELL	$1K–$15K	720	$19.72	Jan 6, 2023
Smith Michael Alexander	General Counsel	GRANT	N/A	6K	—	Jan 6, 2023
Schaeffer Orlov S Nicole	Chief People Strat…	SELL	$15K–$50K	1K	$19.73	Jan 6, 2023
Schaeffer Orlov S Nicole	Chief People Strat…	GRANT	N/A	6K	—	Jan 6, 2023
Lewis William	Chair and CEO	SELL	$100K–$500K	7K	$19.80	Jan 6, 2023
Lewis William	Chair and CEO	GRANT	N/A	22K	—	Jan 6, 2023
Flammer Martina M.D.	Chief Medical Offi…	GRANT	N/A	11K	—	Jan 6, 2023
Flammer Martina M.D.	Chief Medical Offi…	SELL	$15K–$50K	1K	$19.73	Jan 6, 2023
Adsett Roger	COO	SELL	$50K–$100K	3K	$19.75	Jan 6, 2023
Adsett Roger	COO	GRANT	N/A	8K	—	Jan 6, 2023
Wise John Drayton	Chief Commercial O…	SELL	$100K–$500K	7K	$18.84	Nov 22, 2022
Adsett Roger	COO	SELL	$100K–$500K	12K	$18.80	Nov 22, 2022
SHAROKY MELVIN MD	Director	BUY	$500K+	30K	$17.59	Nov 2, 2022
LEE LEO	Director	BUY	$500K+	45K	$17.69	Nov 2, 2022
Wise John Drayton	Chief Commercial O…	SELL	$1K–$15K	258	$27.79	Aug 12, 2022
Lewis William	Chair and CEO	EXERCISE	$500K+	217K	$4.39	Aug 10, 2022
Lewis William	Chair and CEO	SELL	$1M+	217K	$27.84	Aug 10, 2022
Smith Michael Alexander	General Counsel	SELL	$15K–$50K	941	$23.40	Jul 12, 2022
Lewis William	Chair and CEO	SELL	$1M+	97K	$23.00	Jul 8, 2022
Lewis William	Chair and CEO	EXERCISE	$1M+	97K	$16.16	Jul 8, 2022
Adsett Roger	COO	SELL	$50K–$100K	3K	$19.57	May 18, 2022
Bonstein Sara	CFO	SELL	$15K–$50K	1K	$18.51	May 18, 2022
Flammer Martina M.D.	Chief Medical Offi…	SELL	$15K–$50K	2K	$18.51	May 18, 2022
Schaeffer Orlov S Nicole	Chief People Strat…	SELL	$50K–$100K	3K	$19.53	May 18, 2022
Smith Michael Alexander	General Counsel	SELL	$15K–$50K	1K	$19.82	May 18, 2022
Lewis William	Chair and CEO	SELL	$100K–$500K	9K	$19.52	May 18, 2022
SHAROKY MELVIN MD	Director	GRANT	N/A	15K	—	May 13, 2022

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Institutional Ownership

13F filings as of Dec 31, 2025 · 551 funds holding

Fund	Shares	Value	Type
Darwin Global Management, Ltd.	20.9M	$1M+	SH
STATE STREET CORP	5.2M	$1M+	SH
Capital International Investors	5.2M	$1M+	SH
GEODE CAPITAL MANAGEMENT, LLC	3.8M	$1M+	SH
NORGES BANK	2.9M	$1M+	SH
Duquesne Family Office LLC	1.5M	$1M+	SH
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	1.2M	$1M+	SH
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	1.2M	$1M+	SH
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	1.0M	$1M+	SH
Pictet Asset Management Holding SA	959K	$1M+	SH
Jefferies Financial Group Inc.	926K	$1M+	SH
BNP PARIBAS FINANCIAL MARKETS	915K	$1M+	SH
Clearbridge Investments, LLC	819K	$1M+	SH
PRINCIPAL FINANCIAL GROUP INC	767K	$1M+	SH
LORD, ABBETT & CO. LLC	715K	$1M+	SH
Artia Global Partners LP	682K	$1M+	SH
VICTORY CAPITAL MANAGEMENT INC	647K	$1M+	SH
ALLIANCEBERNSTEIN L.P.	643K	$1M+	SH
Fiera Capital Corp	589K	$1M+	SH
Swiss National Bank	579K	$1M+	SH