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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: 8/21/26 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
$4.81 $6.18 $3.28 $625 130 1,336 0.0% 4.8% 63.13% 8.47%
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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#
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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
    
 
JIANG WENBIN
PR,CEO,DIR
JS
$169,376
36,269
---
8/18/26
---
$4.67
5,486,115
-0.7
D
R
8/20/26 - 4:35:16 pm
2
    
 
JIANG WENBIN
PR,CEO,DIR
JB
---
120,095
---
8/18/26
---
---
5,581,985
2.2
D
R
8/20/26 - 4:35:16 pm
3
    
 
MCCOMBE WILLIAM D
CFO
JS
$55,592
11,904
---
8/18/26
---
$4.67
115,386
-9.4
D
R
8/20/26 - 4:34:02 pm
4
    
 
MCCOMBE WILLIAM D
CFO
JB
---
35,420
---
8/18/26
---
---
140,094
33.8
D
R
8/20/26 - 4:34:02 pm
5
    
 
MUIR GLENN P
DIR
JB
---
3,086
---
8/18/26
---
---
3,086
New
D
R
8/20/26 - 4:31:29 pm
6
    
 
HOLDER MICHAEL
DIR
JB
---
2,181
---
8/18/26
---
---
62,875
3.6
D
R
8/20/26 - 4:28:33 pm
7
    
 
CHIN RICHARD
DIR
JB
---
6,107
---
8/18/26
---
---
28,499
27.3
D
R
8/20/26 - 4:27:05 pm
8
    
 
YAN MING
CTO,DIR
JS
$37,771
8,088
---
8/18/26
---
$4.67
4,802,273
-0.2
D
R
8/20/26 - 4:22:56 pm
9
    
 
YAN MING
CTO,DIR
JB
---
33,270
---
8/18/26
---
---
4,825,333
0.7
D
R
8/20/26 - 4:22:56 pm
10
    
 
FEUCHTWANG ILAN
LO,SEC
3
---
---
---
6/29/26
---
---
---
---
---
---
6/30/26 - 9:07:27 pm
11
    
 
YAN MING
CTO,DIR
JS
---
135,892
---
6/12/26
---
---
4,796,688
-2.8
D
---
6/16/26 - 4:59:02 pm
12
    
 
BALL JACK
DIR
JB
---
43,973
---
6/10/26
---
---
86,678
103.0
D
R
6/12/26 - 7:34:18 pm
13
    
 
MUIR GLENN P
DIR
3
---
---
---
6/10/26
---
---
---
---
---
---
6/12/26 - 7:29:34 pm
14
    
 
IMPER VERA
DIR
JB
---
43,973
---
6/10/26
---
---
59,679
280.0
D
R
6/12/26 - 7:25:57 pm
15
    
 
NEFF DEBORAH J
DIR
JB
---
43,973
---
6/10/26
---
---
59,679
280.0
D
R
6/12/26 - 7:23:55 pm
16
    
 
HOLDER MICHAEL
DIR
JB
---
43,973
---
6/10/26
---
---
60,694
263.0
D
R
6/12/26 - 7:22:00 pm
17
    
 
HOLDER MICHAEL
DIR
JB
---
1,454
---
5/18/26
---
---
16,721
9.5
D
R
5/20/26 - 6:01:31 pm
18
    
 
CHIN RICHARD
DIR
JB
---
6,107
---
5/18/26
---
---
22,392
37.5
D
R
5/20/26 - 5:59:27 pm
19
    
 
YAN MING
CTO,DIR
JS
$19,639
5,532
---
5/18/26
---
$3.55
4,919,617
-0.1
D
R
5/20/26 - 5:56:22 pm
20
    
 
YAN MING
CTO,DIR
JB
---
22,179
---
5/18/26
---
---
4,934,944
0.5
D
R
5/20/26 - 5:56:22 pm
21
    
 
BUSQUE PHILIPPE
VP,SO
JS
$9,532
2,685
---
5/18/26
---
$3.55
36,448
-6.9
D
R
5/20/26 - 5:53:08 pm
22
    
 
BUSQUE PHILIPPE
VP,SO
JB
---
10,464
---
5/18/26
---
---
44,890
30.4
D
R
5/20/26 - 5:53:08 pm
23
    
 
JIANG WENBIN
PR,CEO,DIR
JS
$90,674
25,542
---
5/18/26
---
$3.55
5,428,624
-0.5
D
R
5/20/26 - 5:50:32 pm
24
    
 
JIANG WENBIN
PR,CEO,DIR
JB
---
80,062
---
5/18/26
---
---
5,492,212
1.5
D
R
5/20/26 - 5:50:32 pm
25
    
 
MCCOMBE WILLIAM D
CFO
JS
$32,763
9,229
---
5/18/26
---
$3.55
98,739
-8.5
D
R
5/20/26 - 5:48:07 pm
26
    
 
MCCOMBE WILLIAM D
CFO
JB
---
25,719
---
5/18/26
---
---
115,016
28.8
D
R
5/20/26 - 5:48:07 pm
27
    
 
BARNETT VALERIE
LO
JS
$30,952
8,719
---
5/18/26
---
$3.55
136,009
-6.0
D
R
5/20/26 - 5:45:03 pm
28
    
 
BARNETT VALERIE
LO
JB
---
24,295
---
5/18/26
---
---
153,398
18.8
D
R
5/20/26 - 5:45:03 pm
29
    
 
YAN MING
CTO,DIR
JS
---
1,176,000
---
3/13/26
---
---
4,915,933
-19.3
D
---
3/13/26 - 6:30:47 pm
30
    
 
CHIN RICHARD
DIR
JB
---
6,107
---
3/10/26
---
---
16,285
60.0
D
R
3/12/26 - 4:41:17 pm
31
    
 
BARNETT VALERIE
LO
JS
$49,694
11,748
---
3/10/26
---
$4.23
119,609
-8.9
D
R
3/12/26 - 4:40:22 pm
32
    
 
BARNETT VALERIE
LO
JB
---
29,722
---
3/10/26
---
---
140,176
26.9
D
R
3/12/26 - 4:40:22 pm
33
    
 
BUSQUE PHILIPPE
VP,SO
JS
$12,872
3,043
---
3/10/26
---
$4.23
30,316
-9.1
D
R
3/12/26 - 4:39:06 pm
34
    
 
BUSQUE PHILIPPE
VP,SO
JB
---
9,828
---
3/10/26
---
---
37,183
35.9
D
R
3/12/26 - 4:39:06 pm
35
    
 
JIANG WENBIN
PR,CEO,DIR
JS
$88,779
20,988
---
3/10/26
---
$4.23
5,371,710
-0.4
D
R
3/12/26 - 4:38:19 pm
36
    
 
JIANG WENBIN
PR,CEO,DIR
JB
---
83,844
---
3/10/26
---
---
5,432,099
1.6
D
R
3/12/26 - 4:38:19 pm
37
    
 
MCCOMBE WILLIAM D
CFO
JS
$41,234
9,748
---
3/10/26
---
$4.23
84,431
-10.4
D
R
3/12/26 - 4:37:27 pm
38
    
 
MCCOMBE WILLIAM D
CFO
JB
---
23,721
---
3/10/26
---
---
101,832
30.4
D
R
3/12/26 - 4:37:27 pm
39
    
 
YAN MING
CTO,DIR
JS
$32,702
7,731
---
3/10/26
---
$4.23
6,081,034
-0.1
D
R
3/12/26 - 4:36:24 pm
40
    
 
YAN MING
CTO,DIR
JB
---
25,400
---
3/10/26
---
---
6,094,330
0.4
D
R
3/12/26 - 4:36:24 pm
41
    
 
HOLDER MICHAEL
DIR
JB
---
2,908
---
3/10/26
---
---
15,267
23.5
D
R
3/12/26 - 4:34:49 pm
42
    
 
JIANG WENBIN
PR,CEO,DIR
JS
$5,624
1,339
---
2/18/26
---
$4.20
5,359,827
-0.0
D
R
2/20/26 - 5:50:57 pm
43
    
 
JIANG WENBIN
PR,CEO,DIR
JB
---
4,514
---
2/18/26
---
---
5,361,166
0.1
D
R
2/20/26 - 5:50:57 pm
44
    
 
YAN MING
CTO,DIR
JS
$1,659
395
---
2/18/26
---
$4.20
6,074,264
-0.0
D
R
2/20/26 - 5:47:59 pm
45
    
 
YAN MING
CTO,DIR
JB
---
1,332
---
2/18/26
---
---
6,074,659
0.0
D
R
2/20/26 - 5:47:59 pm
46
    
 
BARNETT VALERIE
LO
JS
$2,205
525
---
2/18/26
---
$4.20
116,462
-0.4
D
R
2/20/26 - 5:44:36 pm
47
    
 
BARNETT VALERIE
LO
JB
---
1,346
---
2/18/26
---
---
116,987
1.2
D
R
2/20/26 - 5:44:36 pm
48
    
 
YAN MING
CTO,DIR
JS
$28,330
5,123
---
11/18/25
---
$5.53
6,058,917
-0.1
D
R
11/20/25 - 7:09:01 pm
49
    
 
YAN MING
CTO,DIR
JB
---
21,031
---
11/18/25
---
---
6,074,828
0.3
D
R
11/20/25 - 7:09:01 pm
50
    
 
BUSQUE PHILIPPE
VP,SO
JS
$10,424
1,885
---
11/18/25
---
$5.53
24,559
-7.1
D
R
11/20/25 - 7:07:37 pm
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