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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:
CYTEK BIOSCIENCES INC: CTKB
Price: 10/10/25 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
$3.85 $7.63 $2.37 $490 127 990 0.0% 6.5% 63.33% 9.24%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks Laboratory Analytical Instruments
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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
    
 
YAN MING
CTO,DIR
JS
$23,296
5,738
---
8/18/25
---
$4.06
6,043,519
-0.1
D
R
8/20/25 - 5:58:33 pm
2
    
 
YAN MING
CTO,DIR
JB
---
21,031
---
8/18/25
---
---
6,058,887
0.3
D
R
8/20/25 - 5:58:33 pm
3
    
 
BUSQUE PHILIPPE
VP,SO
JS
$11,660
2,872
---
8/18/25
---
$4.06
19,854
-12.6
D
R
8/20/25 - 5:56:53 pm
4
    
 
BUSQUE PHILIPPE
VP,SO
JB
---
7,371
---
8/18/25
---
---
24,828
42.2
D
R
8/20/25 - 5:56:53 pm
5
    
 
BARNETT VALERIE
LO
JS
$35,846
8,829
---
8/18/25
---
$4.06
84,903
-9.4
D
R
8/20/25 - 5:49:35 pm
6
    
 
BARNETT VALERIE
LO
JB
---
24,307
---
8/18/25
---
---
102,760
31.0
D
R
8/20/25 - 5:49:35 pm
7
    
 
JIANG WENBIN
PR,CEO,DIR
JS
$68,854
16,959
---
8/18/25
---
$4.06
5,266,847
-0.3
D
R
8/20/25 - 5:47:07 pm
8
    
 
JIANG WENBIN
PR,CEO,DIR
JB
---
69,641
---
8/18/25
---
---
5,321,479
1.3
D
R
8/20/25 - 5:47:07 pm
9
    
 
MCCOMBE WILLIAM D
CFO
JS
$30,637
7,546
---
8/18/25
---
$4.06
59,604
-11.2
D
R
8/20/25 - 5:45:21 pm
10
    
 
MCCOMBE WILLIAM D
CFO
JB
---
19,371
---
8/18/25
---
---
72,655
36.4
D
R
8/20/25 - 5:45:21 pm
11
    
 
HOLDER MICHAEL
DIR
JB
---
2,181
---
8/18/25
---
---
10,178
27.3
D
R
8/20/25 - 5:43:04 pm
12
    
 
CHIN RICHARD
DIR
JB
---
4,071
---
8/18/25
---
---
4,071
New
D
R
8/20/25 - 5:41:22 pm
13
    
 
CHIN RICHARD
DIR
3
---
---
---
6/18/25
---
---
---
---
---
---
6/20/25 - 4:27:18 pm
14
    
 
IMPER VERA
DIR
JB
---
15,706
---
6/5/25
---
---
15,706
New
D
R
6/9/25 - 5:11:39 pm
15
    
 
HARDISON DON M
DIR
JB
---
15,706
---
6/5/25
---
---
15,706
New
D
R
6/9/25 - 5:08:59 pm
16
    
 
BALL JACK
DIR
JB
---
15,706
---
6/5/25
---
---
42,705
58.2
D
R
6/9/25 - 5:04:32 pm
17
    
 
NEFF DEBORAH J
DIR
JB
---
15,706
---
6/5/25
---
---
15,706
New
D
R
6/9/25 - 4:57:14 pm
18
    
 
MCCOMBE WILLIAM D
CFO
B
$97,300
35,000
---
6/2/25
---
$2.78
55,746
168.7
D
---
6/3/25 - 5:39:17 pm
19
    
 
MCCOMBE WILLIAM D
CFO
JS
$35,608
13,237
---
5/19/25
---
$2.69
15,435
-46.2
D
R
5/21/25 - 5:57:08 pm
20
    
 
MCCOMBE WILLIAM D
CFO
JB
---
33,983
---
5/19/25
---
---
25,283
---
D
R
5/21/25 - 5:57:08 pm
21
    
 
JIANG WENBIN
PR,CEO,DIR
JS
$31,890
11,855
---
5/19/25
---
$2.69
5,230,023
-0.2
D
R
5/21/25 - 5:55:40 pm
22
    
 
JIANG WENBIN
PR,CEO,DIR
JB
---
48,679
---
5/19/25
---
---
5,266,443
0.9
D
R
5/21/25 - 5:55:40 pm
23
    
 
BARNETT VALERIE
LO
JS
$17,687
6,575
---
5/19/25
---
$2.69
74,602
-8.1
D
R
5/21/25 - 5:54:08 pm
24
    
 
BARNETT VALERIE
LO
JB
---
16,876
---
5/19/25
---
---
86,497
24.2
D
R
5/21/25 - 5:54:08 pm
25
    
 
BUSQUE PHILIPPE
VP,SO
JS
$5,151
1,915
---
5/19/25
---
$2.69
16,544
-10.4
D
R
5/21/25 - 5:52:38 pm
26
    
 
BUSQUE PHILIPPE
VP,SO
JB
---
4,913
---
5/19/25
---
---
19,859
32.9
D
R
5/21/25 - 5:52:38 pm
27
    
 
YAN MING
CTO,DIR
JS
$11,718
4,356
---
5/19/25
---
$2.69
6,033,195
-0.1
D
R
5/21/25 - 5:50:09 pm
28
    
 
YAN MING
CTO,DIR
JB
---
14,680
---
5/19/25
---
---
6,043,345
0.2
D
R
5/21/25 - 5:50:09 pm
29
    
 
HOLDER MICHAEL
DIR
JB
---
1,454
---
5/19/25
---
---
7,997
22.2
D
R
5/21/25 - 5:48:03 pm
30
    
 
BARNETT VALERIE
LO
JS
$25,850
5,929
---
3/10/25
---
$4.36
67,076
-8.1
D
R
3/12/25 - 5:55:49 pm
31
    
 
BARNETT VALERIE
LO
JB
---
15,221
---
3/10/25
---
---
77,389
24.5
D
R
3/12/25 - 5:55:49 pm
32
    
 
BUSQUE PHILIPPE
VP,SO
JS
$8,489
1,947
---
3/10/25
---
$4.36
14,121
-12.1
D
R
3/12/25 - 5:53:58 pm
33
    
 
BUSQUE PHILIPPE
VP,SO
JB
---
4,995
---
3/10/25
---
---
17,067
41.4
D
R
3/12/25 - 5:53:58 pm
34
    
 
JIANG WENBIN
PR,CEO,DIR
JS
$55,180
12,656
---
3/10/25
---
$4.36
5,203,442
-0.2
D
R
3/12/25 - 5:51:55 pm
35
    
 
JIANG WENBIN
PR,CEO,DIR
JB
---
45,175
---
3/10/25
---
---
5,232,909
0.9
D
R
3/12/25 - 5:51:55 pm
36
    
 
YAN MING
CTO,DIR
JS
$22,219
5,096
---
3/10/25
---
$4.36
6,026,621
-0.1
D
R
3/12/25 - 5:49:34 pm
37
    
 
YAN MING
CTO,DIR
JB
---
17,183
---
3/10/25
---
---
6,033,987
0.3
D
R
3/12/25 - 5:49:34 pm
38
    
 
HOLDER MICHAEL
DIR
JB
---
2,908
---
3/10/25
---
---
6,543
80.0
D
R
3/12/25 - 5:47:59 pm
39
    
 
BARNETT VALERIE
LO
JS
$4,174
786
---
2/18/25
---
$5.31
64,080
-1.2
D
R
2/20/25 - 6:12:56 pm
40
    
 
BARNETT VALERIE
LO
JB
---
2,016
---
2/18/25
---
---
64,866
3.2
D
R
2/20/25 - 6:12:56 pm
41
    
 
YAN MING
CTO,DIR
JS
$3,122
588
---
2/18/25
---
$5.31
6,019,715
-0.0
D
R
2/20/25 - 6:11:31 pm
42
    
 
YAN MING
CTO,DIR
JB
---
1,981
---
2/18/25
---
---
6,020,303
0.0
D
R
2/20/25 - 6:11:31 pm
43
    
 
JIANG WENBIN
PR,CEO,DIR
JS
$10,641
2,004
---
2/18/25
---
$5.31
5,192,392
-0.0
D
R
2/20/25 - 6:09:52 pm
44
    
 
JIANG WENBIN
PR,CEO,DIR
JB
---
6,758
---
2/18/25
---
---
5,194,396
0.1
D
R
2/20/25 - 6:09:52 pm
45
    
 
BUSQUE PHILIPPE
VP,SO
JS
$8,804
1,460
---
11/18/24
---
$6.03
11,522
-11.2
D
R
11/20/24 - 6:25:33 pm
46
    
 
BUSQUE PHILIPPE
VP,SO
JB
---
3,746
---
11/18/24
---
---
13,732
37.5
D
R
11/20/24 - 6:25:33 pm
47
    
 
BARNETT VALERIE
LO
JS
$27,129
4,499
---
11/18/24
---
$6.03
55,272
-7.5
D
R
11/20/24 - 6:23:24 pm
48
    
 
BARNETT VALERIE
LO
JB
---
13,432
---
11/18/24
---
---
65,453
25.8
D
R
11/20/24 - 6:23:24 pm
49
    
 
JIANG WENBIN
PR,CEO,DIR
JS
$59,679
9,897
---
11/18/24
---
$6.03
5,162,008
-0.2
D
R
11/20/24 - 6:21:25 pm
50
    
 
JIANG WENBIN
PR,CEO,DIR
JB
---
40,639
---
11/18/24
---
---
5,193,020
0.8
D
R
11/20/24 - 6:21:25 pm
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