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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:
WESTERN DIGITAL CORP: WDC
Price: 2/27/26 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
$279.70 $309.90 $28.83 $95,629 339 9,460 0.2% 10.5% 103.54% 0.58%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Industrial And Commercial Machinery And Computer Equipment Computer Storage Devices
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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
    
 
DAVIS BRIAN SCOTT
SO
JS
$182,665
1,307
11/20/25
11/21/25
---
$139.19
133,714
-1.0
D
R
11/24/25 - 5:45:06 pm
2
    
 
DAVIS BRIAN SCOTT
SO
JB
---
6
11/20/25
11/21/25
---
---
135,018
0.0
D
R
11/24/25 - 5:45:06 pm
3
    
 
SENNESAEL KRIS
CFO
JS
$2,619,497
18,680
---
11/20/25
---
$140.23
187,966
-9.0
D
R
11/24/25 - 5:45:39 pm
4
    
 
SENNESAEL KRIS
CFO
JB
---
99
---
11/20/25
---
---
206,646
0.0
D
R
11/24/25 - 5:45:39 pm
5
    
 
FELLER BRAD
VP,CAO
JB
---
9,907
---
11/20/25
---
---
9,907
New
D
R
11/24/25 - 5:45:14 pm
6
    
 
STREETER STEPHANIE A
DIR
JB
---
1,585
---
11/20/25
---
---
1,585
New
D
R
11/21/25 - 5:57:04 pm
7
    
 
MASSENGILL MATTHEW E
DIR
JB
---
1,585
---
11/20/25
---
---
28,897
5.8
D
R
11/21/25 - 5:31:55 pm
8
    
 
OULMAN ROXANNE
DIR
JB
---
1,595
11/19/25
11/20/25
---
---
5,663
39.2
D
R
11/21/25 - 5:31:44 pm
9
    
 
KIDDOO BRUCE E
DIR
JB
---
1,595
11/19/25
11/20/25
---
---
5,663
39.2
D
R
11/21/25 - 5:31:36 pm
10
    
 
DOLUCA TUNC
DIR
JB
---
1,585
---
11/20/25
---
---
1,585
New
D
R
11/21/25 - 5:31:26 pm
11
    
 
COLE MARTIN I
DIR
JB
---
1,929
11/19/25
11/20/25
---
---
41,433
4.9
D
R
11/21/25 - 5:31:10 pm
12
    
 
ALEXY KIMBERLY
DIR
JB
---
1,594
11/19/25
11/20/25
---
---
5,353
42.4
D
R
11/21/25 - 5:30:57 pm
13
    
 
STREETER STEPHANIE A
DIR
JB
---
16
---
11/19/25
---
---
40,407
0.0
I
R
11/21/25 - 5:57:04 pm
14
    
 
DOLUCA TUNC
DIR
JB
---
14
---
11/19/25
---
---
37,849
0.0
I
R
11/21/25 - 5:31:26 pm
15
    
 
FELLER BRAD
VP,CAO
3
---
---
---
11/14/25
---
---
---
---
---
---
11/24/25 - 5:44:54 pm
16
3m
1
0%
59%
3
COLE MARTIN I
DIR
AS
$1,613,212
10,000
---
11/5/25
$152.99
$164.99
39,504
-20.2
D
10b
11/6/25 - 7:50:10 pm
17
9m
1
0%
456%
2
TAN IRVING
CEO,DIR
AS
$3,013,784
20,000
---
11/3/25
$149.02
$153.93
645,467
-3.0
D
10b
11/5/25 - 6:14:03 pm
18
    
 
TREGILLIS CYNTHIA L
LO,SEC
JS
$158,840
1,307
---
10/20/25
---
$121.53
149,575
-0.9
D
R
10/21/25 - 6:36:42 pm
19
    
 
TREGILLIS CYNTHIA L
LO,SEC
JB
---
8
---
10/20/25
---
---
150,882
0.0
D
R
10/21/25 - 6:36:42 pm
20
    
 
TAN IRVING
CEO,DIR
JS
$83,065
779
---
9/20/25
---
$106.63
665,467
-0.1
D
R
9/22/25 - 6:26:07 pm
21
    
 
TAN IRVING
CEO,DIR
JB
---
34
---
9/20/25
---
---
666,246
0.0
D
R
9/22/25 - 6:26:07 pm
22
    
 
DAVIS BRIAN SCOTT
SO
JS
$102,471
961
---
9/20/25
---
$106.63
135,015
-0.7
D
R
9/22/25 - 6:24:29 pm
23
    
 
DAVIS BRIAN SCOTT
SO
JB
---
5
---
9/20/25
---
---
135,976
0.0
D
R
9/22/25 - 6:24:29 pm
24
    
 
GUBBI VIDYADHARA K
COO
S
$1,024,162
11,343
---
9/4/25
---
$90.29
151,596
-7.0
D
---
9/5/25 - 7:57:45 pm
25
1y
16
38%
22%
2
ZAMISKA GENE M
VP,CAO
AS
$28,558
353
---
8/28/25
---
$80.90
27,425
-1.3
D
R,10b
8/28/25 - 6:26:42 pm
26
    
 
ZAMISKA GENE M
VP,CAO
JS
$27,831
345
---
8/27/25
---
$80.67
27,778
-1.2
D
R,10b
8/28/25 - 6:26:42 pm
27
    
 
ZAMISKA GENE M
VP,CAO
JB
---
1
---
8/27/25
---
---
28,123
0.0
D
R,10b
8/28/25 - 6:26:42 pm
28
    
 
TREGILLIS CYNTHIA L
LO,SEC
JS
$21,458
266
---
8/27/25
---
$80.67
150,874
-0.2
D
R
8/28/25 - 6:26:33 pm
29
    
 
TREGILLIS CYNTHIA L
LO,SEC
JB
---
16,555
8/26/25
8/27/25
---
---
151,140
12.3
D
R
8/28/25 - 6:26:33 pm
30
    
 
GUBBI VIDYADHARA K
COO
JS
$32,913
408
---
8/27/25
---
$80.67
162,939
-0.2
D
R
8/28/25 - 6:25:42 pm
31
    
 
GUBBI VIDYADHARA K
COO
JB
---
16,555
8/26/25
8/27/25
---
---
163,347
11.3
D
R
8/28/25 - 6:25:42 pm
32
    
 
DAVIS BRIAN SCOTT
SO
JS
$35,575
441
---
8/27/25
---
$80.67
135,971
-0.3
D
R
8/28/25 - 6:25:24 pm
33
    
 
DAVIS BRIAN SCOTT
SO
JB
---
13,244
8/26/25
8/27/25
---
---
136,412
10.8
D
R
8/28/25 - 6:25:24 pm
34
    
 
TAN IRVING
CEO,DIR
JB
---
74,162
---
8/26/25
---
---
666,212
12.5
D
R
8/28/25 - 6:26:19 pm
35
    
 
SHIHAB AHMED MOHAMMED
O
JB
---
27,810
---
8/26/25
---
---
184,234
17.8
D
R
8/28/25 - 6:26:12 pm
36
    
 
SENNESAEL KRIS
CFO
JB
---
34,763
---
8/26/25
---
---
206,547
20.2
D
R
8/28/25 - 6:25:49 pm
37
1y
16
38%
22%
2
ZAMISKA GENE M
VP,CAO
AS
$64,387
814
---
8/26/25
---
$79.10
28,122
-2.8
D
R,10b
8/27/25 - 5:47:45 pm
38
    
 
ZAMISKA GENE M
VP,CAO
JS
$63,218
798
---
8/25/25
---
$79.22
28,936
-2.7
D
R,10b
8/27/25 - 5:47:45 pm
39
    
 
ZAMISKA GENE M
VP,CAO
JB
---
2
---
8/25/25
---
---
29,734
0.0
D
R,10b
8/27/25 - 5:47:45 pm
40
    
 
TREGILLIS CYNTHIA L
LO,SEC
JS
$60,920
769
---
8/25/25
---
$79.22
134,585
-0.6
D
R
8/27/25 - 5:47:34 pm
41
    
 
TREGILLIS CYNTHIA L
LO,SEC
JB
---
3
---
8/25/25
---
---
135,354
0.0
D
R
8/27/25 - 5:47:34 pm
42
    
 
TAN IRVING
CEO,DIR
JS
$19,567
247
---
8/25/25
---
$79.22
592,050
-0.0
D
R
8/27/25 - 5:47:22 pm
43
    
 
TAN IRVING
CEO,DIR
JB
---
13
---
8/25/25
---
---
592,297
0.0
D
R
8/27/25 - 5:47:22 pm
44
    
 
GUBBI VIDYADHARA K
COO
JS
$90,311
1,140
---
8/25/25
---
$79.22
146,792
-0.8
D
R
8/27/25 - 5:47:15 pm
45
    
 
GUBBI VIDYADHARA K
COO
JB
---
3
---
8/25/25
---
---
147,932
0.0
D
R
8/27/25 - 5:47:15 pm
46
    
 
DAVIS BRIAN SCOTT
SO
JS
$76,764
969
---
8/25/25
---
$79.22
123,168
-0.8
D
R
8/27/25 - 5:47:04 pm
47
    
 
DAVIS BRIAN SCOTT
SO
JB
---
3
---
8/25/25
---
---
124,137
0.0
D
R
8/27/25 - 5:47:04 pm
48
1y
16
38%
22%
2
ZAMISKA GENE M
VP,AO
AS
$375,847
4,988
8/21/25
8/22/25
---
$74.78
29,732
-14.4
D
R,10b
8/25/25 - 6:47:10 pm
49
    
 
TREGILLIS CYNTHIA L
LO,SEC
AS
$1,051,930
14,067
---
8/22/25
---
$74.78
135,351
-9.4
D
R,10b
8/25/25 - 6:47:00 pm
50
    
 
ZAMISKA GENE M
VP,AO
JS
$134,164
1,797
---
8/21/25
---
$74.66
34,720
-4.9
D
R,10b
8/25/25 - 6:47:10 pm
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