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 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
BIOGEN INC: BIIB
Price: 3/6/26 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
$184.87 $202.41 $110.04 $27,131 147 1,718 0.0% 4.0% 98.02% 0.17%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Chemicals And Allied Products Biological Products, (No Disgnostic Substances)
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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
    
 
MURPHY NICOLE
OO,TO
B
$585
3
---
2/12/26
---
$195.03
19,611
0.0
D
R
2/17/26 - 8:16:40 pm
2
    
 
SINGHAL PRIYA
O
AS
$531,548
2,660
---
2/9/26
---
$199.83
8,043
-24.9
D
R,10b
2/10/26 - 5:05:47 pm
3
    
 
VIEHBACHER CHRISTOPHER
PR,CEO,DIR
JS
$2,208,957
10,980
---
2/6/26
---
$201.18
21,095
-34.2
D
R
2/10/26 - 5:06:49 pm
4
    
 
VIEHBACHER CHRISTOPHER
PR,CEO,DIR
JB
---
24,461
---
2/6/26
---
---
36,548
202.4
D
R
2/10/26 - 5:06:49 pm
5
    
 
SINGHAL PRIYA
O
JS
$496,512
2,468
---
2/6/26
---
$201.18
7,432
-24.9
D
R,10b
2/10/26 - 5:05:47 pm
6
    
 
SINGHAL PRIYA
O
JB
---
6,900
---
2/6/26
---
---
12,115
132.3
D
R,10b
2/10/26 - 5:05:47 pm
7
    
 
MURPHY NICOLE
OO,TO
JS
$671,740
3,339
---
2/6/26
---
$201.18
15,307
-17.9
D
R
2/10/26 - 5:03:41 pm
8
    
 
MURPHY NICOLE
OO,TO
JB
---
8,725
---
2/6/26
---
---
21,016
71.0
D
R
2/10/26 - 5:03:41 pm
9
    
 
KRAMER ROBIN
CFO
JS
$310,421
1,543
---
2/6/26
---
$201.18
8,528
-15.3
D
R
2/10/26 - 5:02:17 pm
10
    
 
KRAMER ROBIN
CFO
JB
---
5,003
---
2/6/26
---
---
12,535
66.4
D
R
2/10/26 - 5:02:17 pm
11
    
 
KEENEY ADAM
O
JS
$318,468
1,583
---
2/6/26
---
$201.18
3,597
-30.6
D
R
2/10/26 - 5:01:16 pm
12
    
 
KEENEY ADAM
O
JB
---
5,080
---
2/6/26
---
---
6,875
283.0
D
R
2/10/26 - 5:01:16 pm
13
    
 
IZZAR RACHID
O
JS
$410,005
2,038
---
2/6/26
---
$201.18
7,399
-21.6
D
R
2/10/26 - 5:00:19 pm
14
    
 
IZZAR RACHID
O
JB
---
6,889
---
2/6/26
---
---
11,786
140.7
D
R
2/10/26 - 5:00:19 pm
15
    
 
GROGAN JANE
O
JS
$199,369
991
---
2/6/26
---
$201.18
2,769
-26.4
D
R
2/10/26 - 4:59:12 pm
16
    
 
GROGAN JANE
O
JB
---
3,258
---
2/6/26
---
---
4,642
235.4
D
R
2/10/26 - 4:59:12 pm
17
    
 
GREGORY GINGER
VP,HR
JS
$520,855
2,589
---
2/6/26
---
$201.18
18,609
-12.2
D
R
2/10/26 - 4:58:07 pm
18
    
 
GREGORY GINGER
VP,HR
JB
---
7,183
---
2/6/26
---
---
23,491
44.0
D
R
2/10/26 - 4:58:07 pm
19
    
 
GODBOUT SEAN
CAO
JS
$72,224
359
---
2/6/26
---
$201.18
676
-34.7
D
R
2/10/26 - 4:56:59 pm
20
    
 
GODBOUT SEAN
CAO
JB
---
1,079
---
2/6/26
---
---
1,395
341.8
D
R
2/10/26 - 4:56:59 pm
21
    
 
ALEXANDER SUSAN H
VP,LO
JS
$704,935
3,504
---
2/6/26
---
$201.18
37,396
-8.6
D
R
2/10/26 - 4:55:45 pm
22
    
 
ALEXANDER SUSAN H
VP,LO
JB
---
9,046
---
2/6/26
---
---
43,321
26.4
D
R
2/10/26 - 4:55:45 pm
23
    
 
SINGHAL PRIYA
O
AS
$134,116
748
---
2/2/26
---
$179.30
6,271
-10.7
D
10b
2/3/26 - 5:17:50 pm
24
    
 
SINGHAL PRIYA
O
JS
$104,696
582
---
1/30/26
---
$179.89
7,019
-7.7
D
10b
2/3/26 - 5:17:50 pm
25
    
 
SINGHAL PRIYA
O
JB
---
1,829
---
1/30/26
---
---
7,601
31.7
D
10b
2/3/26 - 5:17:50 pm
26
    
 
VIEHBACHER CHRISTOPHER
PR,CEO,DIR
JS
$605,163
3,404
---
12/1/25
---
$177.78
16,443
-17.2
D
R
12/3/25 - 4:42:56 pm
27
    
 
VIEHBACHER CHRISTOPHER
PR,CEO,DIR
JB
---
7,040
---
12/1/25
---
---
19,847
55.0
D
R
12/3/25 - 4:42:56 pm
28
    
 
GROGAN JANE
O
JS
$51,989
337
---
10/31/25
---
$154.27
1,791
-15.8
D
R
11/4/25 - 4:12:56 pm
29
    
 
GROGAN JANE
O
JB
---
695
---
10/31/25
---
---
2,128
48.5
D
R
11/4/25 - 4:12:56 pm
30
    
 
GODBOUT SEAN
CAO
JS
$1,242
8
---
10/2/25
---
$155.25
495
-1.6
D
R
10/6/25 - 1:00:24 pm
31
    
 
GODBOUT SEAN
CAO
JB
---
26
---
10/2/25
---
---
503
5.5
D
R
10/6/25 - 1:00:24 pm
32
    
 
SINGHAL PRIYA
O
AS
$69,045
517
---
9/2/25
---
$133.55
5,772
-8.2
D
10b
9/2/25 - 5:56:03 pm
33
    
 
SINGHAL PRIYA
O
JS
$106,702
807
---
8/29/25
---
$132.22
6,289
-11.4
D
10b
9/2/25 - 5:56:03 pm
34
    
 
SINGHAL PRIYA
O
JB
---
1,669
---
8/29/25
---
---
7,096
30.8
D
10b
9/2/25 - 5:56:03 pm
35
    
 
IZZAR RACHID
O
AS
$300,105
2,223
---
7/8/25
---
$135.00
6,330
-26.0
D
10b
7/16/25 - 5:55:39 pm
36
    
 
MINOR LLOYD
DIR
JB
---
2,370
---
6/17/25
---
---
2,370
New
D
---
6/18/25 - 4:54:06 pm
37
    
 
PATOLAWALA MONISH D
DIR
JB
---
2,370
---
6/17/25
---
---
3,710
176.9
D
---
6/18/25 - 4:53:06 pm
38
    
 
MANTAS JESUS B
DIR
JB
---
2,370
---
6/17/25
---
---
9,758
32.1
D
---
6/18/25 - 4:47:42 pm
39
    
 
HAWKINS WILLIAM A
DIR
JB
---
2,370
---
6/17/25
---
---
8,860
36.5
D
---
6/18/25 - 4:46:55 pm
40
    
 
FREIRE MARIA C
DIR
JB
---
2,370
---
6/17/25
---
---
6,815
53.3
D
---
6/18/25 - 4:45:11 pm
41
    
 
ROWINSKY ERIC K
DIR
JB
---
2,370
---
6/17/25
---
---
24,339
10.8
D
---
6/18/25 - 4:44:15 pm
42
    
 
SHERWIN STEPHEN A
DIR
JB
---
2,370
---
6/17/25
---
---
13,688
20.9
D
---
6/18/25 - 4:42:37 pm
43
    
 
LANGER SUSAN
DIR
JB
---
2,370
---
6/17/25
---
---
5,129
85.9
D
---
6/18/25 - 4:38:00 pm
44
    
 
DORSA CAROLINE
DIR
JB
---
3,160
---
6/17/25
---
---
31,002
11.3
D
---
6/18/25 - 4:34:49 pm
45
    
 
SINGHAL PRIYA
O
AS
$480,508
3,806
---
5/19/25
---
$126.25
5,427
-41.2
D
10b
5/20/25 - 4:05:22 pm
46
1y
8
100%
92%
5
DORSA CAROLINE
DIR
B
$151,559
1,235
---
5/2/25
---
$122.72
27,842
4.6
D
---
5/5/25 - 4:17:10 pm
47
1y
8
25%
32%
5
SHERWIN STEPHEN A
DIR
S
$1,314,142
8,760
---
3/7/25
---
$150.02
11,318
-43.6
D
---
3/10/25 - 4:09:42 pm
48
    
 
GODBOUT SEAN
CAO
3
---
---
---
3/1/25
---
---
310
---
D
R
3/10/25 - 4:08:14 pm
49
    
 
SINGHAL PRIYA
O
JS
$50,887
357
---
2/10/25
---
$142.54
9,066
-3.8
D
---
2/12/25 - 5:48:14 pm
50
    
 
SINGHAL PRIYA
O
JB
---
1,212
---
2/10/25
---
---
9,423
14.8
D
---
2/12/25 - 5:48:14 pm
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