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Detailed Insider History for:
CYTOKINETICS INC: CYTK
Price: 1/9/26 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
$62.51 $70.98 $29.31 $7,643 122 1,942 0.0% 14.1% 118.44% 0.74%
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
9m
7
0%
46%
1
CALLOS ANDREW
VP
OS
$904,200
15,000
---
1/5/26
---
$60.28
50,440
-22.9
D
10b
1/5/26 - 4:26:59 pm
2
    
 
CALLOS ANDREW
VP
OE
$348,900
15,000
---
1/5/26
---
$23.26
65,440
29.7
D
10b
1/5/26 - 4:26:59 pm
3
9m
7
0%
46%
1
CALLOS ANDREW
VP
OS
$112,585
1,798
---
1/2/26
$62.09
$63.16
50,440
-3.4
D
10b
1/2/26 - 6:01:33 pm
4
    
 
CALLOS ANDREW
VP
OE
$33,303
885
---
1/2/26
---
$37.63
51,325
1.8
D
10b
1/2/26 - 6:01:33 pm
5
9m
7
0%
46%
1
CALLOS ANDREW
VP
AS
$112,954
1,809
---
12/29/25
---
$62.44
51,353
-3.4
D
10b
12/30/25 - 4:34:40 pm
6
    
 
BLUM ROBERT I
PR,CEO,DIR
JS
$184,083
2,935
---
12/22/25
---
$62.72
399,604
-0.7
D
---
12/29/25 - 4:09:03 pm
7
    
 
BLUM ROBERT I
PR,CEO,DIR
JB
---
11,530
---
12/22/25
---
---
402,539
2.9
D
---
12/29/25 - 4:09:03 pm
8
    
 
MALIK FADY IBRAHAM
VP
JS
$63,724
1,016
---
12/22/25
---
$62.72
141,536
-0.7
D
---
12/29/25 - 4:06:38 pm
9
    
 
MALIK FADY IBRAHAM
VP
JB
---
4,000
---
12/22/25
---
---
142,552
2.9
D
---
12/29/25 - 4:06:38 pm
10
    
 
CALLOS ANDREW
VP
JS
$42,336
675
---
12/22/25
---
$62.72
53,162
-1.3
D
---
12/29/25 - 4:04:58 pm
11
    
 
CALLOS ANDREW
VP
JB
---
3,177
---
12/22/25
---
---
53,837
6.3
D
---
12/29/25 - 4:04:58 pm
12
    
 
LEE SUNG
VP,CFO
JS
$50,490
805
---
12/22/25
---
$62.72
71,416
-1.1
D
---
12/29/25 - 4:03:39 pm
13
    
 
LEE SUNG
VP,CFO
JB
---
4,304
---
12/22/25
---
---
72,221
6.3
D
---
12/29/25 - 4:03:39 pm
14
1y
128
30%
34%
2
BLUM ROBERT I
PR,CEO,DIR
OS
$2,074,445
30,426
---
12/22/25
---
$68.18
374,503
-7.5
D
---
12/23/25 - 4:26:45 pm
15
    
 
BLUM ROBERT I
PR,CEO,DIR
OE
$475,124
71,233
---
12/22/25
---
$6.67
404,929
21.3
D
---
12/23/25 - 4:26:45 pm
16
    
 
WIERENGA WENDELL
DIR
OS
$1,322,800
20,000
---
12/22/25
---
$66.14
32,444
-38.1
D
10b
12/23/25 - 4:13:49 pm
17
    
 
WIERENGA WENDELL
DIR
OE
$152,200
20,000
---
12/22/25
---
$7.61
52,444
61.6
D
10b
12/23/25 - 4:13:49 pm
18
1y
82
30%
36%
1
MALIK FADY IBRAHAM
VP
OS
$134,728
2,200
---
12/16/25
---
$61.24
138,552
-1.6
D
10b
12/16/25 - 4:29:38 pm
19
    
 
MALIK FADY IBRAHAM
VP
OE
$23,320
2,200
---
12/16/25
---
$10.60
140,752
1.6
D
10b
12/16/25 - 4:29:38 pm
20
9m
7
0%
46%
1
CALLOS ANDREW
VP
OS
$68,730
1,042
---
12/8/25
---
$65.96
50,660
-2.0
D
10b
12/8/25 - 5:28:16 pm
21
    
 
CALLOS ANDREW
VP
OE
$40,773
1,042
---
12/8/25
---
$39.13
51,702
2.1
D
10b
12/8/25 - 5:28:16 pm
22
9m
7
0%
46%
1
CALLOS ANDREW
VP
OS
$3,461,452
52,486
---
12/5/25
---
$65.95
50,660
-50.9
D
10b
12/5/25 - 5:35:15 pm
23
    
 
CALLOS ANDREW
VP
OE
$1,775,998
52,486
---
12/5/25
$23.26
$37.63
103,146
103.6
D
10b
12/5/25 - 5:35:15 pm
24
    
 
LEE SUNG
VP,CFO
JS
$101,431
1,560
---
12/3/25
---
$65.02
67,917
-2.2
D
---
12/5/25 - 4:25:28 pm
25
    
 
CALLOS ANDREW
VP
JS
$88,947
1,368
---
12/3/25
---
$65.02
50,660
-2.6
D
---
12/5/25 - 4:23:02 pm
26
    
 
MALIK FADY IBRAHAM
VP
JS
$133,811
2,058
---
12/3/25
---
$65.02
138,552
-1.5
D
---
12/5/25 - 4:20:24 pm
27
    
 
BLUM ROBERT I
PR,CEO,DIR
JS
$385,569
5,930
---
12/3/25
---
$65.02
350,202
-1.7
D
---
12/5/25 - 4:17:14 pm
28
1y
10
50%
11%
3
HENDERSON JOHN T
DIR
OS
$559,125
8,750
---
12/2/25
---
$63.90
74,578
-10.5
D
10b
12/2/25 - 5:14:16 pm
29
    
 
HENDERSON JOHN T
DIR
OE
$87,500
8,750
---
12/2/25
---
$10.00
83,328
11.7
D
10b
12/2/25 - 5:14:16 pm
30
1y
82
30%
36%
1
MALIK FADY IBRAHAM
VP
OS
$140,558
2,200
---
12/2/25
---
$63.89
140,610
-1.5
D
10b
12/2/25 - 5:10:17 pm
31
    
 
MALIK FADY IBRAHAM
VP
OE
$23,320
2,200
---
12/2/25
---
$10.60
142,810
1.6
D
10b
12/2/25 - 5:10:17 pm
32
1y
3
33%
-3%
3
KAYE EDWARD M MD
DIR
OS
$1,872,430
28,064
---
12/1/25
---
$66.72
9,977
-73.8
D
10b
12/2/25 - 9:18:44 am
33
    
 
KAYE EDWARD M MD
DIR
OE
$384,994
28,064
---
12/1/25
$12.40
$14.25
38,041
281.3
D
10b
12/2/25 - 9:18:44 am
34
1y
2
100%
-40%
1
HARRINGTON ROBERT ARTHUR
DIR
AS
$143,620
2,150
---
12/1/25
---
$66.80
18,542
-10.4
D
10b
12/2/25 - 9:13:30 am
35
1y
13
85%
-19%
3
PARSHALL B LYNNE
DIR
AS
$323,650
5,000
---
11/19/25
---
$64.73
22,933
-17.9
D
10b
11/19/25 - 6:57:42 pm
36
1y
82
30%
36%
1
MALIK FADY IBRAHAM
VP
OS
$146,190
2,200
---
11/18/25
---
$66.45
140,610
-1.5
D
10b
11/18/25 - 4:23:49 pm
37
    
 
MALIK FADY IBRAHAM
VP
OE
$23,320
2,200
---
11/18/25
---
$10.60
142,810
1.6
D
10b
11/18/25 - 4:23:49 pm
38
    
 
HESSEKIEL JEFFREY
LO
JB
---
87,297
---
11/14/25
---
---
87,297
New
D
R
11/17/25 - 4:02:48 pm
39
    
 
HESSEKIEL JEFFREY
LO
3
---
---
---
11/13/25
---
---
---
---
D
---
11/14/25 - 9:56:01 pm
40
1y
3
33%
-3%
3
KAYE EDWARD M MD
DIR
OS
$336,789
5,175
---
11/11/25
---
$65.08
9,977
-34.2
D
10b
11/12/25 - 6:50:52 pm
41
    
 
KAYE EDWARD M MD
DIR
OE
$49,991
5,175
---
11/11/25
---
$9.66
15,152
51.9
D
10b
11/12/25 - 6:50:52 pm
42
    
 
BLUM ROBERT I
PR,CEO,DIR
JS
---
2,000
---
11/5/25
---
---
356,108
-0.6
D
---
11/5/25 - 4:22:20 pm
43
1y
82
30%
36%
1
MALIK FADY IBRAHAM
VP
AS
$136,667
2,295
---
11/4/25
---
$59.55
140,610
-1.6
D
10b
11/4/25 - 7:23:31 pm
44
    
 
MALIK FADY IBRAHAM
VP
OE
$24,327
2,295
---
11/4/25
---
$10.60
142,905
1.6
D
10b
11/4/25 - 7:23:31 pm
45
1y
128
30%
34%
2
BLUM ROBERT I
PR,CEO,DIR
AS
$314,300
5,000
---
10/30/25
---
$62.86
358,108
-1.4
D
10b
10/30/25 - 4:25:46 pm
46
    
 
WIERENGA WENDELL
DIR
OS
$256,725
4,375
---
10/27/25
---
$58.68
32,444
-11.9
D
10b
10/27/25 - 5:59:36 pm
47
    
 
WIERENGA WENDELL
DIR
OE
$43,750
4,375
---
10/27/25
---
$10.00
36,819
13.5
D
10b
10/27/25 - 5:59:36 pm
48
1y
82
30%
36%
1
MALIK FADY IBRAHAM
VP
OS
$122,553
2,105
---
10/21/25
---
$58.22
140,610
-1.5
D
10b
10/21/25 - 6:18:38 pm
49
    
 
MALIK FADY IBRAHAM
VP
OE
$22,313
2,105
---
10/21/25
---
$10.60
142,715
1.5
D
10b
10/21/25 - 6:18:38 pm
50
1y
128
30%
34%
2
BLUM ROBERT I
PR,CEO,DIR
AS
$300,150
5,000
---
10/16/25
---
$60.03
363,108
-1.4
D
10b
10/16/25 - 5:05:27 pm
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