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 S  AS  JS*  OS  OS*  3
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 JS
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Detailed Insider History for:
INSMED INC: INSM
Price: 12/5/25 52-Wk
High		 52-Wk
Low		 Mkt Cap (mm) Shrs Out (mm) 3-Mth Ave
Vol (m)		 Ind. Yield Short Int
% Float		 Inst. Owned Insider Owned
$204.00 $212.75 $60.40 $43,508 213 2,299 0.0% 4.6% 101.34% 0.57%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Chemicals And Allied Products Pharmaceutical Preparations
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Insider Statistics
T N H M S
Filer Name
Insider Title
Trans Type
Dollar Value
Shares Traded
Trans Date From
Trans Date To
Trans Price From
Trans Price To
Total Holdings
Delta % Owned
Owned
Other Info
Input Date
1
1y
19
53%
28%
2
LEWIS WILLIAM
CB,CEO,DIR
OS
$2,199,915
10,699
---
12/4/25
$204.62
$207.42
303,911
-3.4
D
10b
12/5/25 - 4:11:22 pm
2
    
 
LEWIS WILLIAM
CB,CEO,DIR
OE
$266,840
10,699
---
12/4/25
---
$17.16
314,610
3.5
D
10b
12/5/25 - 4:11:22 pm
3
    
 
FLAMMER MARTINA M D
O
OS
$1,841,101
8,895
---
12/1/25
$205.98
$207.73
83,111
-9.7
D
10b
12/3/25 - 4:01:49 pm
4
    
 
FLAMMER MARTINA M D
O
OE
$229,758
8,895
---
12/1/25
---
$25.83
92,006
10.7
D
10b
12/3/25 - 4:01:49 pm
5
    
 
ANDERSON ELIZABETH M
DIR
S
$1,022,900
5,000
---
11/24/25
---
$204.58
58,729
-7.8
D
---
11/26/25 - 4:31:41 pm
6
    
 
LEE LEO
DIR
S
$14,692,249
75,000
---
11/17/25
$193.51
$197.40
54,677
-57.8
D
---
11/18/25 - 4:21:46 pm
7
    
 
ANDERSON ELIZABETH M
DIR
S
$1,958,700
10,000
---
11/14/25
---
$195.87
63,729
-13.6
D
---
11/18/25 - 4:20:06 pm
8
1y
21
33%
48%
2
SCHAEFFER ORLOV S NICOLE
HR
OS
$5,820,061
30,000
---
11/12/25
$192.45
$195.88
36,461
-45.1
D
---
11/14/25 - 4:12:56 pm
9
    
 
SCHAEFFER ORLOV S NICOLE
HR
OE
$793,800
30,000
---
11/12/25
---
$26.46
66,461
82.3
D
---
11/14/25 - 4:12:56 pm
10
    
 
FLAMMER MARTINA M D
O
OS
$5,922,795
31,226
---
11/11/25
$188.38
$191.04
83,111
-27.3
D
10b
11/13/25 - 4:32:14 pm
11
    
 
FLAMMER MARTINA M D
O
OE
$567,389
31,226
---
11/11/25
$17.07
$18.95
114,337
37.6
D
10b
11/13/25 - 4:32:14 pm
12
    
 
BRENNAN DAVID R
DIR
JS
---
60,000
---
11/6/25
---
---
66,933
-47.3
D
---
11/10/25 - 4:42:41 pm
13
    
 
BRENNAN DAVID R
DIR
JB
---
60,000
---
11/6/25
---
---
60,000
New
I
---
11/10/25 - 4:42:41 pm
14
    
 
SMITH MICHAEL ALEXANDER
LO
OS
$4,985,911
27,130
---
11/3/25
$181.01
$187.97
54,902
-33.1
D
10b
11/5/25 - 4:08:19 pm
15
    
 
SMITH MICHAEL ALEXANDER
LO
OE
$644,338
27,130
---
11/3/25
---
$23.75
82,032
49.4
D
10b
11/5/25 - 4:08:19 pm
16
1y
21
33%
48%
2
SCHAEFFER ORLOV S NICOLE
HR
OS
$11,129,927
76,520
---
9/12/25
$144.60
$147.46
36,461
-67.7
D
10b
9/15/25 - 4:23:09 pm
17
    
 
SCHAEFFER ORLOV S NICOLE
HR
OE
$1,342,350
56,520
---
9/12/25
---
$23.75
112,981
100.1
D
10b
9/15/25 - 4:23:09 pm
18
1y
6
100%
-25%
2
SHAROKY MELVIN MD
DIR
S
$1,453,900
10,000
---
9/12/25
---
$145.39
262,675
-3.7
D
---
9/15/25 - 4:22:21 pm
19
    
 
SHAROKY MELVIN MD
DIR
JS
---
2,000
---
9/11/25
---
---
272,516
-0.7
D
---
9/15/25 - 4:22:21 pm
20
    
 
SHAROKY MELVIN MD
DIR
JS
---
159
---
9/11/25
---
---
741
-17.7
I
---
9/15/25 - 4:22:21 pm
21
    
 
SHAROKY MELVIN MD
DIR
JB
---
159
---
9/11/25
---
---
272,675
0.1
D
---
9/15/25 - 4:22:21 pm
22
    
 
SCHAEFFER ORLOV S NICOLE
HR
JS
---
23,303
---
9/4/25
---
---
56,461
-29.2
D
---
9/5/25 - 4:25:45 pm
23
    
 
SMITH MICHAEL ALEXANDER
LO
OS
$3,492,378
24,272
---
9/2/25
$141.16
$145.89
54,902
-30.7
D
10b
9/4/25 - 5:26:29 pm
24
    
 
SMITH MICHAEL ALEXANDER
LO
OE
$389,279
12,780
---
9/2/25
---
$30.46
79,174
19.2
D
10b
9/4/25 - 5:26:29 pm
25
    
 
FLAMMER MARTINA M D
O
OS
$26,941,272
186,648
---
9/2/25
$141.27
$146.05
83,111
-69.2
D
10b
9/4/25 - 5:24:22 pm
26
    
 
FLAMMER MARTINA M D
O
OE
$4,366,789
186,648
---
9/2/25
$17.07
$25.83
269,759
224.6
D
10b
9/4/25 - 5:24:22 pm
27
1y
6
100%
-25%
2
SHAROKY MELVIN MD
DIR
S
$1,295,000
10,000
---
8/20/25
---
$129.50
274,516
-3.5
D
---
8/21/25 - 5:07:31 pm
28
1y
13
23%
83%
1
ADSETT ROGER
COO
S
$3,189,586
25,000
---
8/19/25
$127.42
$128.27
105,637
-19.1
D
---
8/21/25 - 5:05:56 pm
29
1y
19
53%
28%
2
LEWIS WILLIAM
CB,CEO,DIR
OS
$881,470
6,865
---
8/18/25
$127.59
$129.47
233,924
-2.9
I
10b
8/20/25 - 4:28:49 pm
30
    
 
LEWIS WILLIAM
CB,CEO,DIR
OE
$74,485
6,865
---
8/18/25
---
$10.85
240,789
2.9
I
10b
8/20/25 - 4:28:49 pm
31
1y
21
33%
48%
2
SCHAEFFER ORLOV S NICOLE
HR
S
$1,273,364
10,000
---
8/14/25
$126.57
$128.16
79,764
-11.1
D
---
8/18/25 - 4:19:48 pm
32
    
 
SHAROKY MELVIN MD
DIR
JS
---
15,000
---
8/13/25
---
---
900
-94.3
I
---
8/14/25 - 4:21:46 pm
33
    
 
SHAROKY MELVIN MD
DIR
JS
---
6,100
---
8/13/25
---
---
284,516
-2.1
D
---
8/14/25 - 4:21:46 pm
34
    
 
SHAROKY MELVIN MD
DIR
JB
---
5,000
---
8/13/25
---
---
6,847
270.7
I
---
8/14/25 - 4:21:46 pm
35
1y
6
100%
-25%
2
SHAROKY MELVIN MD
DIR
S
$1,215,800
10,000
---
8/12/25
---
$121.58
290,616
-3.3
D
---
8/14/25 - 4:21:46 pm
36
1y
19
53%
28%
2
LEWIS WILLIAM
CB,CEO,DIR
OS
$750,008
6,830
---
8/4/25
$108.80
$110.91
233,924
-2.8
I
10b
8/6/25 - 4:21:35 pm
37
    
 
LEWIS WILLIAM
CB,CEO,DIR
OE
$74,106
6,830
---
8/4/25
---
$10.85
240,754
2.9
I
10b
8/6/25 - 4:21:35 pm
38
    
 
FLAMMER MARTINA M D
O
OS
$954,293
8,715
---
8/4/25
---
$109.50
83,111
-9.5
D
10b
8/6/25 - 4:19:29 pm
39
    
 
FLAMMER MARTINA M D
O
OE
$172,034
8,715
---
8/4/25
---
$19.74
91,826
10.5
D
10b
8/6/25 - 4:19:29 pm
40
1y
8
25%
64%
3
BONSTEIN SARA
CFO
OS
$5,996,094
58,400
---
7/21/25
$102.38
$103.03
73,505
-44.3
D
10b
7/23/25 - 4:35:37 pm
41
    
 
BONSTEIN SARA
CFO
OE
$1,466,711
47,888
---
7/21/25
$26.46
$34.03
131,905
57.0
D
10b
7/23/25 - 4:35:37 pm
42
1y
19
53%
28%
2
LEWIS WILLIAM
CB,CEO,DIR
OS
$699,220
6,830
---
7/15/25
$101.71
$103.32
233,924
-2.8
I
10b
7/15/25 - 5:53:29 pm
43
    
 
LEWIS WILLIAM
CB,CEO,DIR
OE
$74,106
6,830
---
7/15/25
---
$10.85
240,754
2.9
I
10b
7/15/25 - 5:53:29 pm
44
    
 
SMITH MICHAEL ALEXANDER
LO
AS
$167,757
1,681
7/11/25
7/15/25
$96.41
$102.51
66,394
-2.5
D
R,10b
7/15/25 - 5:52:26 pm
45
1y
8
25%
64%
3
BONSTEIN SARA
CFO
OS
$5,537,460
57,764
---
7/7/25
$95.66
$96.19
84,017
-40.7
D
10b
7/9/25 - 4:18:19 pm
46
    
 
BONSTEIN SARA
CFO
OE
$1,216,773
47,888
---
7/7/25
$19.74
$26.46
141,781
51.0
D
10b
7/9/25 - 4:18:19 pm
47
1y
19
53%
28%
2
LEWIS WILLIAM
CB,CEO,DIR
OS
$671,612
6,830
---
7/1/25
$97.73
$99.61
233,924
-2.8
I
10b
7/2/25 - 4:06:05 pm
48
    
 
LEWIS WILLIAM
CB,CEO,DIR
OE
$74,106
6,830
---
7/1/25
---
$10.85
240,754
2.9
I
10b
7/2/25 - 4:06:05 pm
49
1y
8
25%
64%
3
BONSTEIN SARA
CFO
OS
$5,879,089
57,765
---
6/23/25
$101.71
$102.15
93,536
-38.2
D
10b
6/25/25 - 4:18:35 pm
50
    
 
BONSTEIN SARA
CFO
OE
$917,479
47,889
---
6/23/25
$18.95
$19.74
151,301
46.3
D
10b
6/25/25 - 4:18:35 pm
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