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Detailed Insider History for:
WESTERN DIGITAL CORP: WDC
Price: 8/29/25 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
$80.34 $82.32 $28.83 $27,872 347 6,596 0.5% 10.8% 106.86% 0.79%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Industrial And Commercial Machinery And Computer Equipment Computer Storage Devices
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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
11
55%
-10%
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
2
    
 
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
3
    
 
ZAMISKA GENE M
VP,CAO
JB
---
1
---
8/27/25
---
---
28,123
0.0
D
R,10b
8/28/25 - 6:26:42 pm
4
    
 
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
5
    
 
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
6
    
 
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
7
    
 
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
8
    
 
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
9
    
 
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
10
    
 
TAN IRVING
CEO,DIR
JB
---
74,162
---
8/26/25
---
---
666,212
12.5
D
R
8/28/25 - 6:26:19 pm
11
    
 
SHIHAB AHMED MOHAMMED
O
JB
---
27,810
---
8/26/25
---
---
184,234
17.8
D
R
8/28/25 - 6:26:12 pm
12
    
 
SENNESAEL KRIS
CFO
JB
---
34,763
---
8/26/25
---
---
206,547
20.2
D
R
8/28/25 - 6:25:49 pm
13
1y
11
55%
-10%
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
14
    
 
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
15
    
 
ZAMISKA GENE M
VP,CAO
JB
---
2
---
8/25/25
---
---
29,734
0.0
D
R,10b
8/27/25 - 5:47:45 pm
16
    
 
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
17
    
 
TREGILLIS CYNTHIA L
LO,SEC
JB
---
3
---
8/25/25
---
---
135,354
0.0
D
R
8/27/25 - 5:47:34 pm
18
    
 
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
19
    
 
TAN IRVING
CEO,DIR
JB
---
13
---
8/25/25
---
---
592,297
0.0
D
R
8/27/25 - 5:47:22 pm
20
    
 
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
21
    
 
GUBBI VIDYADHARA K
COO
JB
---
3
---
8/25/25
---
---
147,932
0.0
D
R
8/27/25 - 5:47:15 pm
22
    
 
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
23
    
 
DAVIS BRIAN SCOTT
SO
JB
---
3
---
8/25/25
---
---
124,137
0.0
D
R
8/27/25 - 5:47:04 pm
24
1y
11
55%
-10%
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
25
    
 
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
26
    
 
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
27
    
 
ZAMISKA GENE M
VP,AO
JB
---
6
---
8/21/25
---
---
36,517
0.0
D
R,10b
8/25/25 - 6:47:10 pm
28
    
 
TREGILLIS CYNTHIA L
LO,SEC
JS
$330,594
4,428
---
8/21/25
---
$74.66
149,418
-2.9
D
R,10b
8/25/25 - 6:47:00 pm
29
    
 
TREGILLIS CYNTHIA L
LO,SEC
JB
---
18
---
8/21/25
---
---
153,846
0.0
D
R,10b
8/25/25 - 6:47:00 pm
30
    
 
TAN IRVING
CEO,DIR
JS
$111,243
1,490
---
8/21/25
---
$74.66
592,284
-0.3
D
R
8/25/25 - 6:46:51 pm
31
    
 
TAN IRVING
CEO,DIR
JB
---
42
---
8/21/25
---
---
593,774
0.0
D
R
8/25/25 - 6:46:51 pm
32
    
 
GUBBI VIDYADHARA K
COO
JS
$207,032
2,773
---
8/21/25
---
$74.66
147,929
-1.8
D
R
8/25/25 - 6:46:42 pm
33
    
 
GUBBI VIDYADHARA K
COO
JB
---
9
---
8/21/25
---
---
150,702
0.0
D
R
8/25/25 - 6:46:42 pm
34
    
 
DAVIS BRIAN SCOTT
SO
JS
$177,019
2,371
---
8/21/25
---
$74.66
124,134
-1.9
D
R
8/25/25 - 6:46:30 pm
35
    
 
DAVIS BRIAN SCOTT
SO
JB
---
8
---
8/21/25
---
---
126,505
0.0
D
R
8/25/25 - 6:46:30 pm
36
    
 
ZAMISKA GENE M
VP,CAO
JS
$234,635
3,102
---
8/20/25
---
$75.64
36,511
-7.8
D
R
8/21/25 - 6:34:59 pm
37
    
 
ZAMISKA GENE M
VP,CAO
JB
---
9
---
8/20/25
---
---
39,613
0.0
D
R
8/21/25 - 6:34:59 pm
38
    
 
TREGILLIS CYNTHIA L
LO,SEC
JS
$194,017
2,565
---
8/20/25
---
$75.64
153,828
-1.6
D
R
8/21/25 - 6:34:51 pm
39
    
 
TREGILLIS CYNTHIA L
LO,SEC
JB
---
10
---
8/20/25
---
---
156,393
0.0
D
R
8/21/25 - 6:34:51 pm
40
    
 
TAN IRVING
CEO,DIR
JS
$91,146
1,205
---
8/20/25
---
$75.64
593,732
-0.2
D
R,10b
8/21/25 - 6:33:41 pm
41
    
 
TAN IRVING
CEO,DIR
JB
---
101
---
8/20/25
---
---
594,937
0.0
D
R,10b
8/21/25 - 6:33:41 pm
42
    
 
GUBBI VIDYADHARA K
COO
JS
$302,333
3,997
---
8/20/25
---
$75.64
150,693
-2.6
D
R
8/21/25 - 6:33:29 pm
43
    
 
GUBBI VIDYADHARA K
COO
JB
---
11
---
8/20/25
---
---
154,690
0.0
D
R
8/21/25 - 6:33:29 pm
44
    
 
DAVIS BRIAN SCOTT
SO
JS
$365,795
4,836
---
8/20/25
---
$75.64
126,497
-3.7
D
R
8/21/25 - 6:33:15 pm
45
    
 
DAVIS BRIAN SCOTT
SO
JB
---
14
---
8/20/25
---
---
131,333
0.0
D
R
8/21/25 - 6:33:15 pm
46
3m
1
0%
54%
2
TAN IRVING
CEO,DIR
AS
$654,334
8,621
---
8/19/25
---
$75.90
594,836
-1.4
D
R,10b
8/21/25 - 6:33:41 pm
47
    
 
GUBBI VIDYADHARA K
COO
S
$722,359
9,544
8/11/25
8/13/25
$74.88
$76.26
154,679
-5.8
D
---
8/13/25 - 6:06:37 pm
48
    
 
TREGILLIS CYNTHIA L
LO,SEC
JS
$88,808
1,306
---
7/20/25
---
$68.00
156,383
-0.8
D
R
7/22/25 - 5:27:38 pm
49
    
 
TREGILLIS CYNTHIA L
LO,SEC
JB
---
5
---
7/20/25
---
---
157,689
0.0
D
R
7/22/25 - 5:27:38 pm
50
    
 
GUBBI VIDYADHARA K
COO
JS
$487,245
8,218
---
6/20/25
---
$59.29
164,223
-4.8
D
R
6/24/25 - 5:38:50 pm
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