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INSMED Inc

INSM Net selling
CIK 0001104506 #651 in the set updated 17 Sep 2026
Bought (12 mo)
$0.00
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$167.12M
$5.75M on a plan · $126.11M straight out of an exercise
Sold at will
$35.26M
34 of 169 sales
Net
−$167.12M
−$35.26M against sales at will

By person

15 insiders · 169 transactions
71.5×

William H. Lewis holds 71.5 times base salary in stock. $61.13M of shares against $854.55K in salary for 2025.

Salary from the company's own proxy. The shares are what William H. Lewis last reported holding, valued at $124.00, the price Common Stock was last bought or sold at on the open market here, on 9 Sep 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Adsett Roger
Chief Operating Officer
—
$48.25M (10) scheduled
−$48.25M
98,744
0.0452%
$12.24M
−34.4%
Lewis William
Chair and CEO
—
$32.79M (74) scheduled
−$32.79M
492,982
0.2257%
$61.13M
−1.3%
Flammer Martina M.D.
Chief Medical Officer
—
$23.32M (40) scheduled
−$23.32M
60,486
0.0277%
$7.50M
−43.0%
Schaeffer Orlov S Nicole
Chief People Strategy Officer
—
$21.11M (9) scheduled
−$21.11M
41,754
0.0191%
$5.18M
−58.4%
LEE LEO
Director
—
$14.69M (5)
−$14.69M
57,971
0.0265%
$7.19M
−53.5%
Smith Michael Alexander
Chief Legal Officer
—
$14.00M (20) scheduled
−$14.00M
37,648
0.0172%
$4.67M
−44.9%
SHAROKY MELVIN MD
Director
—
$4.74M (2)
−$4.74M
246,081
0.1127%
$30.51M
−20.9%
Brennan David R
Director
—
$3.10M (1)
−$3.10M
159,238
0.0729%
$19.75M
−12.4%
ANDERSON ELIZABETH M
Director
—
$2.98M (2)
−$2.98M
62,034
0.0284%
$7.69M
−9.7%
Bonstein Sara
Chief Financial Officer
—
$2.13M (6)
−$2.13M
69,082
0.0316%
$8.57M
−41.7%
Wise John Drayton
Chief Commercial Officer
—
—
—
133,015
0.0609%
$16.49M
+8.6%
MCGIRR DAVID W J
Director
—
—
—
97,723
0.0447%
$12.12M
−1.2%
Desjardins Clarissa
Director
—
—
—
73,337
0.0336%
$9.09M
+18.4%
SCHAFER CAROL
Director
—
—
—
66,622
0.0305%
$8.26M
+14.4%
Butera Samuele
SVP, GM, Global Respiratory
—
—
—
7,342
0.0034%
$910.41K
—

Individual transactions

121
Insider
Date
Role
Action
Shares
Price
Amount
Adsett Roger
10 Aug 2026
Chief Operating Officer
Sold after exercise
239,850
$133.27
$31.96M
Flammer Martina M.D.
6 Aug 2026
Chief Medical Officer
Sold after exercise
18,278
$129.40
$2.37M
Flammer Martina M.D.
6 Aug 2026
Chief Medical Officer
Sold after exercise
8,895
$127.00
$1.13M
Lewis William
23 Jul 2026
Chair and CEO
Sold after exercise
5,872
$106.43
$624.96K
Lewis William
23 Jul 2026
Chair and CEO
Sold after exercise
4,828
$105.62
$509.93K
Lewis William
9 Jul 2026
Chair and CEO
Sold after exercise
3,359
$118.52
$398.11K
Lewis William
9 Jul 2026
Chair and CEO
Sold after exercise
2,335
$117.62
$274.64K
Lewis William
9 Jul 2026
Chair and CEO
Sold after exercise
5,005
$116.55
$583.33K
Flammer Martina M.D.
6 Jul 2026
Chief Medical Officer
Sold after exercise
7,448
$110.60
$823.75K
Flammer Martina M.D.
6 Jul 2026
Chief Medical Officer
Sold after exercise
4,854
$109.02
$529.18K
Lewis William
25 Jun 2026
Chair and CEO
Sold after exercise
1,292
$106.27
$137.30K
Lewis William
25 Jun 2026
Chair and CEO
Sold after exercise
2,456
$105.27
$258.54K
Lewis William
25 Jun 2026
Chair and CEO
Sold after exercise
3,723
$104.28
$388.23K
Lewis William
25 Jun 2026
Chair and CEO
Sold after exercise
1,836
$103.10
$189.29K
Lewis William
25 Jun 2026
Chair and CEO
Sold after exercise
12,091
$102.34
$1.24M
Lewis William
18 May 2026
Chair and CEO
Sold after exercise
7,975
$106.97
$853.09K
Lewis William
18 May 2026
Chair and CEO
Sold after exercise
11,836
$106.39
$1.26M
Lewis William
18 May 2026
Chair and CEO
Sold after exercise
5,753
$105.32
$605.91K
Flammer Martina M.D.
11 May 2026
Chief Medical Officer
Sold after exercise
830
$101.18
$83.98K
Flammer Martina M.D.
11 May 2026
Chief Medical Officer
Sold after exercise
12,119
$100.35
$1.22M
Lewis William
4 May 2026
Chair and CEO
Sold after exercise
381
$139.60
$53.19K
Lewis William
4 May 2026
Chair and CEO
Sold after exercise
1,247
$139.09
$173.45K
Lewis William
4 May 2026
Chair and CEO
Sold after exercise
2,721
$137.86
$375.12K
Lewis William
4 May 2026
Chair and CEO
Sold after exercise
5,318
$137.01
$728.62K
Lewis William
4 May 2026
Chair and CEO
Sold after exercise
599
$135.18
$80.97K
Lewis William
4 May 2026
Chair and CEO
Sold after exercise
433
$134.18
$58.10K
Lewis William
16 Apr 2026
Chair and CEO
Sold after exercise
825
$145.79
$120.28K
Lewis William
16 Apr 2026
Chair and CEO
Sold after exercise
2,255
$144.66
$326.21K
Lewis William
16 Apr 2026
Chair and CEO
Sold after exercise
5,373
$143.81
$772.69K
Lewis William
16 Apr 2026
Chair and CEO
Sold after exercise
2,246
$142.99
$321.16K
Lewis William
6 Apr 2026
Chair and CEO
Sold after exercise
1,434
$164.01
$235.19K
Lewis William
6 Apr 2026
Chair and CEO
Sold after exercise
8,478
$163.23
$1.38M
Lewis William
6 Apr 2026
Chair and CEO
Sold after exercise
787
$161.73
$127.28K
Adsett Roger
1 Apr 2026
Chief Operating Officer
Sold after exercise
62,344
$164.95
$10.28M
Adsett Roger
1 Apr 2026
Chief Operating Officer
Sold after exercise
19,001
$164.11
$3.12M
Adsett Roger
1 Apr 2026
Chief Operating Officer
Sold after exercise
6,715
$163.18
$1.10M
Smith Michael Alexander
30 Mar 2026
Chief Legal Officer
Sold after exercise
19,638
$150.98
$2.96M
Lewis William
19 Mar 2026
Chair and CEO
Sold after exercise
4,533
$144.11
$653.25K
Lewis William
19 Mar 2026
Chair and CEO
Sold after exercise
4,537
$143.42
$650.70K
Lewis William
19 Mar 2026
Chair and CEO
Sold after exercise
1,629
$142.17
$231.59K
Lewis William
5 Mar 2026
Chair and CEO
Sold after exercise
2,128
$147.54
$313.97K
Lewis William
5 Mar 2026
Chair and CEO
Sold after exercise
3,899
$146.66
$571.83K
Lewis William
5 Mar 2026
Chair and CEO
Sold after exercise
2,589
$145.27
$376.10K
Lewis William
5 Mar 2026
Chair and CEO
Sold after exercise
2,083
$144.23
$300.43K
Smith Michael Alexander
24 Feb 2026
Chief Legal Officer
Sold after exercise
15,771
$156.53
$2.47M
Smith Michael Alexander
24 Feb 2026
Chief Legal Officer
Sold after exercise
4,151
$155.06
$643.65K
Smith Michael Alexander
24 Feb 2026
Chief Legal Officer
Sold after exercise
4,852
$153.93
$746.87K
Lewis William
19 Feb 2026
Chair and CEO
Sold after exercise
1,030
$153.38
$157.98K
Lewis William
19 Feb 2026
Chair and CEO
Sold after exercise
2,377
$151.92
$361.11K
Lewis William
19 Feb 2026
Chair and CEO
Sold after exercise
3,413
$151.12
$515.77K
Lewis William
19 Feb 2026
Chair and CEO
Sold after exercise
1,891
$150.10
$283.84K
Lewis William
19 Feb 2026
Chair and CEO
Sold after exercise
1,988
$149.17
$296.55K
Lewis William
9 Feb 2026
Chair and CEO
Sold after exercise
1,287
$148.83
$191.54K
Lewis William
9 Feb 2026
Chair and CEO
Sold after exercise
7,221
$148.02
$1.07M
Lewis William
9 Feb 2026
Chair and CEO
Sold after exercise
4,888
$147.17
$719.37K
Flammer Martina M.D.
2 Feb 2026
Chief Medical Officer
Sold after exercise
100
$156.86
$15.69K
Flammer Martina M.D.
2 Feb 2026
Chief Medical Officer
Sold after exercise
3,042
$155.46
$472.91K
Flammer Martina M.D.
2 Feb 2026
Chief Medical Officer
Sold after exercise
3,349
$154.56
$517.62K
Flammer Martina M.D.
2 Feb 2026
Chief Medical Officer
Sold after exercise
928
$153.16
$142.13K
Flammer Martina M.D.
2 Feb 2026
Chief Medical Officer
Sold after exercise
563
$152.06
$85.61K
Lewis William
20 Jan 2026
Chair and CEO
Sold after exercise
254
$160.70
$40.82K
Lewis William
20 Jan 2026
Chair and CEO
Sold after exercise
2,229
$159.85
$356.31K
Lewis William
20 Jan 2026
Chair and CEO
Sold after exercise
5,967
$158.99
$948.69K
Lewis William
20 Jan 2026
Chair and CEO
Sold after exercise
1,243
$158.37
$196.85K
Lewis William
20 Jan 2026
Chair and CEO
Sold after exercise
1,006
$156.80
$157.74K
Lewis William
12 Jan 2026
Chair and CEO
Sold after exercise
315
$174.86
$55.08K
Lewis William
12 Jan 2026
Chair and CEO
Sold after exercise
297
$172.36
$51.19K
Lewis William
12 Jan 2026
Chair and CEO
Sold after exercise
297
$171.31
$50.88K
Lewis William
12 Jan 2026
Chair and CEO
Sold after exercise
160
$170.24
$27.24K
Lewis William
12 Jan 2026
Chair and CEO
Sold after exercise
6,996
$169.57
$1.19M
Lewis William
12 Jan 2026
Chair and CEO
Sold after exercise
7,176
$168.63
$1.21M
Lewis William
12 Jan 2026
Chair and CEO
Sold after exercise
3,974
$167.73
$666.56K
Flammer Martina M.D.
6 Jan 2026
Chief Medical Officer
Sold after exercise
1,615
$173.33
$279.93K
Flammer Martina M.D.
6 Jan 2026
Chief Medical Officer
Sold after exercise
957
$175.01
$167.48K
Flammer Martina M.D.
6 Jan 2026
Chief Medical Officer
Sold after exercise
2,830
$174.21
$493.01K
Flammer Martina M.D.
6 Jan 2026
Chief Medical Officer
Sold after exercise
4,783
$173.47
$829.71K
Flammer Martina M.D.
5 Jan 2026
Chief Medical Officer
Sold after exercise
702
$175.73
$123.36K
Flammer Martina M.D.
5 Jan 2026
Chief Medical Officer
Sold after exercise
655
$174.28
$114.15K
Flammer Martina M.D.
5 Jan 2026
Chief Medical Officer
Sold after exercise
1,820
$173.45
$315.68K
Flammer Martina M.D.
5 Jan 2026
Chief Medical Officer
Sold after exercise
286
$171.92
$49.17K
Flammer Martina M.D.
5 Jan 2026
Chief Medical Officer
Sold after exercise
2,836
$171.19
$485.49K
Flammer Martina M.D.
5 Jan 2026
Chief Medical Officer
Sold after exercise
3,205
$170.61
$546.81K
Flammer Martina M.D.
5 Jan 2026
Chief Medical Officer
Sold after exercise
2,799
$169.29
$473.84K
Schaeffer Orlov S Nicole
2 Jan 2026
Chief People Strategy Officer
Sold after exercise
200
$177.78
$35.56K
Schaeffer Orlov S Nicole
2 Jan 2026
Chief People Strategy Officer
Sold after exercise
9,125
$177.17
$1.62M
Schaeffer Orlov S Nicole
2 Jan 2026
Chief People Strategy Officer
Sold after exercise
12,832
$176.08
$2.26M
Schaeffer Orlov S Nicole
2 Jan 2026
Chief People Strategy Officer
Sold after exercise
34,103
$175.17
$5.97M
Schaeffer Orlov S Nicole
2 Jan 2026
Chief People Strategy Officer
Sold after exercise
31,030
$174.28
$5.41M
Lewis William
18 Dec 2025
Chair and CEO
Sold after exercise
51
$171.20
$8.73K
Lewis William
18 Dec 2025
Chair and CEO
Sold after exercise
362
$170.26
$61.63K
Lewis William
18 Dec 2025
Chair and CEO
Sold after exercise
1,938
$169.58
$328.65K
Lewis William
18 Dec 2025
Chair and CEO
Sold after exercise
2,175
$168.54
$366.57K
Lewis William
18 Dec 2025
Chair and CEO
Sold after exercise
1,431
$167.29
$239.39K
Lewis William
18 Dec 2025
Chair and CEO
Sold after exercise
1,783
$166.60
$297.05K
Lewis William
18 Dec 2025
Chair and CEO
Sold after exercise
697
$165.21
$115.15K
Lewis William
18 Dec 2025
Chair and CEO
Sold after exercise
447
$164.24
$73.42K
Lewis William
18 Dec 2025
Chair and CEO
Sold after exercise
1,465
$163.19
$239.07K
Lewis William
18 Dec 2025
Chair and CEO
Sold after exercise
350
$162.26
$56.79K
Lewis William
4 Dec 2025
Chair and CEO
Sold after exercise
1,040
$207.42
$215.72K
Lewis William
4 Dec 2025
Chair and CEO
Sold after exercise
2,921
$206.49
$603.16K
Lewis William
4 Dec 2025
Chair and CEO
Sold after exercise
2,222
$205.66
$456.98K
Lewis William
4 Dec 2025
Chair and CEO
Sold after exercise
4,516
$204.62
$924.06K
Flammer Martina M.D.
1 Dec 2025
Chief Medical Officer
Sold after exercise
1,559
$207.73
$323.85K
Flammer Martina M.D.
1 Dec 2025
Chief Medical Officer
Sold after exercise
5,886
$207.03
$1.22M
Flammer Martina M.D.
1 Dec 2025
Chief Medical Officer
Sold after exercise
1,450
$205.98
$298.67K
Schaeffer Orlov S Nicole
12 Nov 2025
Chief People Strategy Officer
Sold after exercise
164
$195.88
$32.12K
Schaeffer Orlov S Nicole
12 Nov 2025
Chief People Strategy Officer
Sold after exercise
19,183
$194.44
$3.73M
Schaeffer Orlov S Nicole
12 Nov 2025
Chief People Strategy Officer
Sold after exercise
6,575
$193.64
$1.27M
Schaeffer Orlov S Nicole
12 Nov 2025
Chief People Strategy Officer
Sold after exercise
4,078
$192.45
$784.81K
Flammer Martina M.D.
11 Nov 2025
Chief Medical Officer
Sold after exercise
2,913
$191.04
$556.50K
Flammer Martina M.D.
11 Nov 2025
Chief Medical Officer
Sold after exercise
10,622
$190.33
$2.02M
Flammer Martina M.D.
11 Nov 2025
Chief Medical Officer
Sold after exercise
12,224
$189.36
$2.31M
Flammer Martina M.D.
11 Nov 2025
Chief Medical Officer
Sold after exercise
5,467
$188.38
$1.03M
Smith Michael Alexander
3 Nov 2025
Chief Legal Officer
Sold after exercise
1,400
$187.97
$263.16K
Smith Michael Alexander
3 Nov 2025
Chief Legal Officer
Sold after exercise
1,572
$187.15
$294.20K
Smith Michael Alexander
3 Nov 2025
Chief Legal Officer
Sold after exercise
3,636
$185.93
$676.04K
Smith Michael Alexander
3 Nov 2025
Chief Legal Officer
Sold after exercise
3,243
$184.91
$599.66K
Smith Michael Alexander
3 Nov 2025
Chief Legal Officer
Sold after exercise
4,032
$183.92
$741.57K
Smith Michael Alexander
3 Nov 2025
Chief Legal Officer
Sold after exercise
4,286
$182.60
$782.62K
Smith Michael Alexander
3 Nov 2025
Chief Legal Officer
Sold after exercise
7,619
$181.88
$1.39M
Smith Michael Alexander
3 Nov 2025
Chief Legal Officer
Sold after exercise
1,342
$181.01
$242.92K
Show all 169 transactions →

What was left out

Form 4 filings counted 75
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 14
Sales straight out of an exercise 121
Sales at will 34
Transactions with no price 0
Shares from compensation/vesting 1,127,959
History held since 4 Oct 2016