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Detailed Insider History for:
IONIS PHARMACEUTICALS INC: IONS
Price: 1/30/26 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
$82.67 $86.15 $23.95 $13,390 162 2,458 0.0% 11.2% 109.28% 0.63%
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
31
45%
-2%
1
BENNETT C FRANK
VP
OS
$7,056,216
85,089
---
2/2/26
$82.60
$83.03
80,293
-51.4
D
10b
2/4/26 - 4:06:04 pm
2
    
 
BENNETT C FRANK
VP
OE
$3,497,531
65,089
---
2/2/26
---
$32.60
128,919
102.0
D
10b
2/4/26 - 4:06:04 pm
3
    
 
SWAYZE ERIC
VP
S
$512,446
6,179
---
1/30/26
---
$82.93
47,747
-11.5
D
R
2/2/26 - 8:52:12 pm
4
    
 
SCHNEIDER EUGENE
VP
S
$515,630
6,179
---
1/30/26
---
$83.45
69,702
-8.1
D
R
2/2/26 - 8:52:06 pm
5
1y
41
78%
-49%
1
O NEIL PATRICK R
VP,LO,GC
S
$516,154
6,179
---
1/30/26
---
$83.53
71,983
-7.9
D
R
2/2/26 - 8:51:59 pm
6
1y
36
67%
-24%
1
MONIA BRETT P
CEO,DIR
S
$5,208,979
62,970
---
1/30/26
---
$82.72
283,927
-18.2
D
R
2/2/26 - 8:51:49 pm
7
1y
24
67%
-37%
1
HOUGEN ELIZABETH L
VP,CFO
S
$581,702
6,988
---
1/30/26
---
$83.24
132,881
-5.0
D
R
2/2/26 - 8:51:38 pm
8
    
 
BIRCHLER BRIAN
VP,OO
S
$513,048
6,179
---
1/30/26
---
$83.03
66,247
-8.5
D
R
2/2/26 - 8:51:32 pm
9
1y
31
45%
-2%
1
BENNETT C FRANK
VP
S
$488,141
5,885
---
1/30/26
---
$82.95
100,293
-5.5
D
R
2/2/26 - 8:51:27 pm
10
    
 
BAROLDI JOSEPH
VP
S
$439,364
5,296
---
1/30/26
---
$82.96
45,413
-10.4
D
R
2/2/26 - 8:51:21 pm
11
    
 
SWAYZE ERIC
VP
JB
---
11,991
---
1/29/26
---
---
53,926
28.6
D
R
2/2/26 - 8:52:12 pm
12
    
 
SCHNEIDER EUGENE
VP
JB
---
11,991
---
1/29/26
---
---
75,881
18.8
D
R
2/2/26 - 8:52:06 pm
13
    
 
O NEIL PATRICK R
VP,LO,GC
JB
---
11,991
---
1/29/26
---
---
78,162
18.1
D
R
2/2/26 - 8:51:59 pm
14
    
 
MONIA BRETT P
CEO,DIR
JB
---
122,214
---
1/29/26
---
---
346,897
54.4
D
R
2/2/26 - 8:51:49 pm
15
    
 
HOUGEN ELIZABETH L
VP,CFO
JB
---
13,562
---
1/29/26
---
---
139,869
10.7
D
R
2/2/26 - 8:51:38 pm
16
    
 
BIRCHLER BRIAN
VP,OO
JB
---
11,991
---
1/29/26
---
---
72,426
19.8
D
R
2/2/26 - 8:51:32 pm
17
    
 
BENNETT C FRANK
VP
JB
---
11,421
---
1/29/26
---
---
106,178
12.1
D
R
2/2/26 - 8:51:27 pm
18
    
 
BAROLDI JOSEPH
VP
JB
---
10,278
---
1/29/26
---
---
50,709
25.4
D
R
2/2/26 - 8:51:21 pm
19
    
 
DEVERS SHANNON L
VP,HR
AS
$323,490
3,977
---
1/22/26
---
$81.34
22,541
-15.0
D
10b
1/23/26 - 5:51:50 pm
20
    
 
SWAYZE ERIC
VP
S
$744,661
9,884
---
1/16/26
---
$75.34
41,935
-19.1
D
R
1/20/26 - 8:21:37 pm
21
    
 
SWAYZE ERIC
VP
S
$3,723
49
---
1/16/26
---
$75.97
318
-13.4
I
R
1/20/26 - 8:21:37 pm
22
    
 
SCHNEIDER EUGENE
VP
S
$703,138
9,302
---
1/16/26
---
$75.59
63,890
-12.7
D
R
1/20/26 - 8:21:31 pm
23
1y
41
78%
-49%
1
O NEIL PATRICK R
VP,LO,GC
S
$697,045
9,191
---
1/16/26
---
$75.84
66,171
-12.2
D
R
1/20/26 - 8:20:29 pm
24
1y
36
67%
-24%
1
MONIA BRETT P
CEO,DIR
S
$3,294,624
44,034
---
1/16/26
---
$74.82
224,683
-16.4
D
R
1/20/26 - 8:20:23 pm
25
    
 
KORDASIEWICZ HOLLY B
VP
S
$313,308
4,141
---
1/16/26
---
$75.66
14,718
-22.0
D
R
1/20/26 - 8:18:47 pm
26
    
 
JENNE KYLE
VP
S
$138,475
1,823
---
1/16/26
---
$75.96
16,389
-10.0
D
R
1/20/26 - 8:18:39 pm
27
1y
24
67%
-37%
1
HOUGEN ELIZABETH L
VP,CFO
S
$971,993
12,922
---
1/16/26
---
$75.22
126,307
-9.3
D
R
1/20/26 - 8:18:32 pm
28
    
 
DEVERS SHANNON L
VP,HR
S
$634,410
8,353
---
1/16/26
---
$75.95
26,518
-24.0
D
R
1/20/26 - 8:18:26 pm
29
    
 
BIRCHLER BRIAN
VP,OO
S
$636,933
8,480
---
1/16/26
---
$75.11
60,435
-12.3
D
R
1/20/26 - 8:18:16 pm
30
1y
31
45%
-2%
1
BENNETT C FRANK
VP
S
$674,622
8,977
---
1/16/26
---
$75.15
94,757
-8.7
D
R
1/20/26 - 8:18:10 pm
31
    
 
BAROLDI JOSEPH
VP
S
$523,205
6,907
---
1/16/26
---
$75.75
40,431
-14.6
D
R
1/20/26 - 8:18:04 pm
32
    
 
BAROLDI JOSEPH
VP
S
$87,071
1,149
---
1/16/26
---
$75.78
4,772
-19.4
I
R
1/20/26 - 8:18:04 pm
33
    
 
YANG MICHAEL J
DIR
JB
---
1,930
---
1/15/26
---
---
7,940
32.1
D
R
1/20/26 - 8:21:43 pm
34
    
 
SWAYZE ERIC
VP
JB
---
21,366
---
1/15/26
---
---
51,819
70.2
D
R
1/20/26 - 8:21:37 pm
35
    
 
SWAYZE ERIC
VP
JB
---
111
---
1/15/26
---
---
367
43.4
I
R
1/20/26 - 8:21:37 pm
36
    
 
SCHNEIDER EUGENE
VP
JB
---
21,685
---
1/15/26
---
---
73,192
42.1
D
R
1/20/26 - 8:21:31 pm
37
    
 
O NEIL PATRICK R
VP,LO,GC
JB
---
21,473
---
1/15/26
---
---
75,362
39.8
D
R
1/20/26 - 8:20:29 pm
38
    
 
MONIA BRETT P
CEO,DIR
JB
---
89,145
---
1/15/26
---
---
268,717
49.6
D
R
1/20/26 - 8:20:23 pm
39
    
 
KORDASIEWICZ HOLLY B
VP
JB
---
11,119
---
1/15/26
---
---
18,859
143.7
D
R
1/20/26 - 8:18:47 pm
40
    
 
JENNE KYLE
VP
JB
---
7,013
---
1/15/26
---
---
18,212
62.6
D
R
1/20/26 - 8:18:39 pm
41
    
 
HOUGEN ELIZABETH L
VP,CFO
JB
---
28,729
---
1/15/26
---
---
139,229
26.0
D
R
1/20/26 - 8:18:32 pm
42
    
 
DEVERS SHANNON L
VP,HR
JB
---
17,377
---
1/15/26
---
---
34,871
99.3
D
R
1/20/26 - 8:18:26 pm
43
    
 
BIRCHLER BRIAN
VP,OO
JB
---
20,089
---
1/15/26
---
---
68,915
41.1
D
R
1/20/26 - 8:18:16 pm
44
    
 
BENNETT C FRANK
VP
JB
---
21,055
---
1/15/26
---
---
103,734
25.5
D
R
1/20/26 - 8:18:10 pm
45
    
 
BAROLDI JOSEPH
VP
JB
---
17,037
---
1/15/26
---
---
47,338
56.2
D
R
1/20/26 - 8:18:04 pm
46
    
 
BAROLDI JOSEPH
VP
JB
---
2,850
---
1/15/26
---
---
5,921
92.8
I
R
1/20/26 - 8:18:04 pm
47
    
 
DEVERS SHANNON L
VP,HR
OS
$3,760,578
44,199
---
1/7/26
---
$84.62
17,494
-71.6
D
10b
1/9/26 - 5:08:28 pm
48
    
 
DEVERS SHANNON L
VP,HR
OE
$2,265,415
44,199
---
1/7/26
$32.60
$52.87
43,039
---
D
10b
1/9/26 - 5:08:28 pm
49
    
 
SWAYZE ERIC
VP
OS
$1,856,325
23,463
---
1/2/26
$78.57
$79.27
30,453
-43.5
D
10b
1/6/26 - 5:35:26 pm
50
    
 
SWAYZE ERIC
VP
OE
$1,428,662
23,463
---
1/2/26
---
$60.89
48,791
92.6
D
10b
1/6/26 - 5:35:26 pm
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