INSM

INSMED Inc

Company with tickers: INSM

Market Cap

$22.64B

Shares Outstanding

216,752,451

CIK

1104506

CUSIP

457669307

13F Activity (30d)

24 filings 5 filers

Website

Visit website

Investor Relations

Investor relations

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 3, 4 and 5. Form 4 must be filed within two business days of the trade.

Insider Sentiment Score

Peer-relative 0–100 rank of how aggressively insiders accumulated over the trailing 90 days. See the full ranking.

Net buyers

-5

Net shares bought

-0.12%

Net buy value

-$35,247,364

Date	Insider	Role	Type	Shares	Price	Value	After
2026-06-23	Butera Samuele	SVP, GM, Global Respiratory	Award	12,570	—	—	12,570
2026-06-23	Butera Samuele	SVP, GM, Global Respiratory	Award	7,342	—	—	7,342
2026-06-23	Butera Samuele	SVP, GM, Global Respiratory	Other	0	—	—	0
2026-06-22	Smith Michael Alexander	Chief Legal Officer	Sell	1,806	$95.82	$173,051	37,648
2026-06-08	Lewis William	Director	Sell	6,515	$94.03	$612,605	258,917
2026-06-05	Flammer Martina M.D.	Chief Medical Officer	Sell	1,858	$103.78	$192,823	60,486
2026-06-03	Adsett Roger	Chief Operating Officer	Sell	2,370	$102.27	$242,380	98,603
2026-06-03	Bonstein Sara	Chief Financial Officer	Sell	2,404	$102.27	$245,857	69,082
2026-06-03	Smith Michael Alexander	Chief Legal Officer	Sell	2,159	$102.27	$220,801	39,454
2026-06-03	Flammer Martina M.D.	Chief Medical Officer	Sell	2,566	$102.27	$262,425	62,344
2026-06-03	Lewis William	Director	Sell	7,605	$102.27	$777,763	265,432
2026-05-22	Smith Michael Alexander	Chief Legal Officer	Sell	6,149	$108.47	$666,982	41,613
2026-05-18	Lewis William	Director	Convert	6,259	$30.46	$190,649	294,161
2026-05-18	Lewis William	Director	Sell	7,975	$106.97	$853,086	273,037
2026-05-18	Lewis William	Director	Convert	6,259	—	—	25,037
2026-05-18	Lewis William	Director	Convert	4,440	—	—	17,760
2026-05-18	Lewis William	Director	Convert	4,440	$17.16	$76,190	298,601
2026-05-18	Lewis William	Director	Sell	5,753	$105.32	$605,906	292,848
2026-05-18	Lewis William	Director	Sell	11,836	$106.39	$1,259,232	281,012
2026-05-14	Flammer Martina M.D.	Chief Medical Officer	Sell	10,479	$117.54	$1,231,702	64,910
2026-05-13	Flammer Martina M.D.	Chief Medical Officer	Sell	4,470	$112.76	$504,037	78,773
2026-05-13	LEE LEO	Director	Award	3,305	—	—	57,971
2026-05-13	Smith Michael Alexander	Chief Legal Officer	Sell	4,109	$116.18	$477,384	47,762
2026-05-13	SCHAFER CAROL	Director	Award	3,305	—	—	66,622
2026-05-13	SHAROKY MELVIN MD	Director	Award	3,305	—	—	246,081
2026-05-13	Adsett Roger	Chief Operating Officer	Sell	5,837	$116.18	$678,143	100,973
2026-05-13	Flammer Martina M.D.	Chief Medical Officer	Sell	3,384	$116.18	$393,153	75,389
2026-05-13	Brennan David R	Director	Award	3,305	—	—	64,238
2026-05-13	Lewis William	Director	Sell	13,283	$116.18	$1,543,219	287,902
2026-05-13	Bonstein Sara	Chief Financial Officer	Sell	8,272	$116.18	$961,041	71,486
2026-05-13	Desjardins Clarissa	Director	Award	3,305	—	—	70,312
2026-05-13	ANDERSON ELIZABETH M	Director	Award	3,305	—	—	62,034
2026-05-11	Flammer Martina M.D.	Chief Medical Officer	Convert	12,949	$17.07	$221,039	96,192
2026-05-11	Flammer Martina M.D.	Chief Medical Officer	Convert	12,949	—	—	0
2026-05-11	Flammer Martina M.D.	Chief Medical Officer	Sell	12,119	$100.35	$1,216,142	84,073
2026-05-11	Flammer Martina M.D.	Chief Medical Officer	Sell	830	$101.18	$83,979	83,243
2026-05-04	Lewis William	Director	Sell	381	$139.60	$53,188	301,185
2026-05-04	Lewis William	Director	Convert	4,440	$17.16	$76,190	311,884
2026-05-04	Lewis William	Director	Convert	4,440	—	—	22,200
2026-05-04	Lewis William	Director	Sell	5,318	$137.01	$728,619	305,534
2026-05-04	Lewis William	Director	Sell	1,247	$139.09	$173,445	301,566
2026-05-04	Lewis William	Director	Convert	6,259	—	—	31,296
2026-05-04	Lewis William	Director	Sell	599	$135.18	$80,973	310,852
2026-05-04	Lewis William	Director	Sell	2,721	$137.86	$375,117	302,813
2026-05-04	Lewis William	Director	Sell	433	$134.18	$58,100	311,451
2026-05-04	Lewis William	Director	Convert	6,259	$30.46	$190,649	307,444
2026-04-16	Lewis William	Director	Convert	6,259	—	—	37,555
2026-04-16	Lewis William	Director	Sell	2,246	$142.99	$321,156	309,638
2026-04-16	Lewis William	Director	Convert	6,259	$30.46	$190,649	307,444
2026-04-16	Lewis William	Director	Sell	825	$145.79	$120,277	301,185

Showing 1–50 of 1,321 transactions