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Detailed Insider History for:
IONIS PHARMACEUTICALS INC: IONS
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
$74.04 $86.74 $23.95 $12,231 165 2,140 0.0% 12.6% 105.62% 0.71%
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
1
0%
92%
2
LOSCALZO JOSEPH
DIR
OS
$82,833
1,032
3/3/26
3/4/26
---
$80.00
36,330
-2.8
D
10b
3/5/26 - 6:14:30 pm
2
    
 
LOSCALZO JOSEPH
DIR
OE
$39,278
1,032
3/3/26
3/4/26
---
$38.06
37,162
2.9
D
10b
3/5/26 - 6:14:30 pm
3
    
 
BAROLDI JOSEPH
VP
OS
$205,928
2,563
3/3/26
3/4/26
---
$80.00
4,347
-37.1
I
10b
3/5/26 - 6:13:53 pm
4
    
 
BAROLDI JOSEPH
VP
OE
$95,281
2,138
3/3/26
3/4/26
---
$32.60
6,471
49.3
I
10b
3/5/26 - 6:13:53 pm
5
1y
25
72%
-33%
8
KLEIN JOSEPH III
DIR
OS
$1,696,181
21,332
---
3/3/26
$79.17
$80.82
11,014
-65.9
D
10b
3/5/26 - 6:14:23 pm
6
    
 
KLEIN JOSEPH III
DIR
OE
$652,120
16,000
---
3/3/26
$40.05
$42.88
32,346
97.9
D
10b
3/5/26 - 6:14:23 pm
7
    
 
DIAZ ALLENE M
DIR
OS
$4,354,428
54,878
---
3/3/26
$79.11
$80.80
3,811
-93.5
D
10b
3/5/26 - 6:14:15 pm
8
    
 
DIAZ ALLENE M
DIR
OE
$1,601,607
40,321
---
3/3/26
$38.06
$40.05
58,689
219.5
D
10b
3/5/26 - 6:14:15 pm
9
    
 
DEVERS SHANNON L
VP,HR
OS
$1,596,433
20,106
---
3/3/26
$79.11
$80.84
22,541
-47.1
D
10b
3/5/26 - 6:14:06 pm
10
    
 
DEVERS SHANNON L
VP,HR
OE
$723,254
20,106
---
3/3/26
$32.60
$52.87
42,647
89.2
D
10b
3/5/26 - 6:14:06 pm
11
1y
31
45%
-2%
1
BENNETT C FRANK
VP
OS
$6,741,669
85,089
---
3/3/26
$79.10
$80.76
80,554
-51.4
D
10b
3/5/26 - 6:13:59 pm
12
    
 
BENNETT C FRANK
VP
OE
$3,497,531
65,089
---
3/3/26
$32.60
$60.89
165,643
64.7
D
10b
3/5/26 - 6:13:59 pm
13
    
 
BAROLDI JOSEPH
VP
AS
$325,059
4,096
---
3/3/26
---
$79.36
41,317
-9.0
D
10b
3/5/26 - 6:13:53 pm
14
    
 
SWAYZE ERIC
VP
JB
$12,510
256
---
2/27/26
---
$48.87
32,361
0.8
D
---
3/3/26 - 5:29:14 pm
15
    
 
O NEIL PATRICK R
VP,LO,GC
JB
$18,374
376
---
2/27/26
---
$48.87
72,359
0.5
D
---
3/3/26 - 5:29:07 pm
16
    
 
MONIA BRETT P
CEO,DIR
JB
$23,651
484
---
2/27/26
---
$48.87
254,981
0.2
D
---
3/3/26 - 5:28:55 pm
17
    
 
BIRCHLER BRIAN
VP,OO
JB
$17,152
351
---
2/27/26
---
$48.87
66,598
0.5
D
---
3/3/26 - 5:28:43 pm
18
    
 
BENNETT C FRANK
VP
JB
$12,754
261
---
2/27/26
---
$48.87
100,554
0.3
D
---
3/3/26 - 5:28:34 pm
19
    
 
SWAYZE ERIC
VP
AS
$1,278,914
15,642
---
2/13/26
$81.56
$82.07
32,105
-32.8
D
10b
2/13/26 - 7:40:24 pm
20
1y
23
70%
-34%
3
PARSHALL B LYNNE
DIR
AS
$413,589
5,000
---
2/11/26
---
$82.72
56,344
-8.2
D
10b
2/13/26 - 7:40:10 pm
21
1y
36
67%
-23%
1
MONIA BRETT P
CEO,DIR
AS
$2,524,820
29,430
---
2/6/26
---
$85.79
254,497
-10.4
D
10b
2/10/26 - 5:04:29 pm
22
    
 
BENNETT C FRANK
VP
JS
---
---
---
2/2/26
---
---
100,293
---
D
A
2/13/26 - 7:40:36 pm
23
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
24
    
 
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
25
    
 
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
26
    
 
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
27
1y
42
76%
-45%
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
28
1y
36
67%
-23%
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
29
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
30
    
 
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
31
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
32
    
 
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
33
    
 
SWAYZE ERIC
VP
JB
---
11,991
---
1/29/26
---
---
53,926
28.6
D
R
2/2/26 - 8:52:12 pm
34
    
 
SCHNEIDER EUGENE
VP
JB
---
11,991
---
1/29/26
---
---
75,881
18.8
D
R
2/2/26 - 8:52:06 pm
35
    
 
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
36
    
 
MONIA BRETT P
CEO,DIR
JB
---
122,214
---
1/29/26
---
---
346,897
54.4
D
R
2/2/26 - 8:51:49 pm
37
    
 
HOUGEN ELIZABETH L
VP,CFO
JB
---
13,562
---
1/29/26
---
---
139,869
10.7
D
R
2/2/26 - 8:51:38 pm
38
    
 
BIRCHLER BRIAN
VP,OO
JB
---
11,991
---
1/29/26
---
---
72,426
19.8
D
R
2/2/26 - 8:51:32 pm
39
    
 
BENNETT C FRANK
VP
JB
---
11,421
---
1/29/26
---
---
106,178
12.1
D
R
2/2/26 - 8:51:27 pm
40
    
 
BAROLDI JOSEPH
VP
JB
---
10,278
---
1/29/26
---
---
50,709
25.4
D
R
2/2/26 - 8:51:21 pm
41
    
 
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
42
    
 
SWAYZE ERIC
VP
S
$3,723
49
---
1/16/26
---
$75.97
318
-13.4
I
R
1/20/26 - 8:21:37 pm
43
    
 
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
44
    
 
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
45
1y
42
76%
-45%
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
46
1y
36
67%
-23%
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
47
    
 
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
48
    
 
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
49
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
50
    
 
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
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