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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
    
 
ZAMISKA GENE M
VP,AO
JB
---
6
---
8/21/25
---
---
36,517
0.0
D
R,10b
8/25/25 - 6:47:10 pm
2
    
 
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
3
    
 
TREGILLIS CYNTHIA L
LO,SEC
JB
---
18
---
8/21/25
---
---
153,846
0.0
D
R,10b
8/25/25 - 6:47:00 pm
4
    
 
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
5
    
 
TAN IRVING
CEO,DIR
JB
---
42
---
8/21/25
---
---
593,774
0.0
D
R
8/25/25 - 6:46:51 pm
6
    
 
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
7
    
 
GUBBI VIDYADHARA K
COO
JB
---
9
---
8/21/25
---
---
150,702
0.0
D
R
8/25/25 - 6:46:42 pm
8
    
 
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
9
    
 
DAVIS BRIAN SCOTT
SO
JB
---
8
---
8/21/25
---
---
126,505
0.0
D
R
8/25/25 - 6:46:30 pm
10
    
 
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
11
    
 
ZAMISKA GENE M
VP,CAO
JB
---
9
---
8/20/25
---
---
39,613
0.0
D
R
8/21/25 - 6:34:59 pm
12
    
 
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
13
    
 
TREGILLIS CYNTHIA L
LO,SEC
JB
---
10
---
8/20/25
---
---
156,393
0.0
D
R
8/21/25 - 6:34:51 pm
14
    
 
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
15
    
 
TAN IRVING
CEO,DIR
JB
---
101
---
8/20/25
---
---
594,937
0.0
D
R,10b
8/21/25 - 6:33:41 pm
16
    
 
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
17
    
 
GUBBI VIDYADHARA K
COO
JB
---
11
---
8/20/25
---
---
154,690
0.0
D
R
8/21/25 - 6:33:29 pm
18
    
 
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
19
    
 
DAVIS BRIAN SCOTT
SO
JB
---
14
---
8/20/25
---
---
131,333
0.0
D
R
8/21/25 - 6:33:15 pm
20
9m
1
0%
456%
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
21
    
 
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
22
    
 
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
23
    
 
TREGILLIS CYNTHIA L
LO,SEC
JB
---
5
---
7/20/25
---
---
157,689
0.0
D
R
7/22/25 - 5:27:38 pm
24
    
 
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
25
    
 
GUBBI VIDYADHARA K
COO
JB
---
28
---
6/20/25
---
---
172,441
0.0
D
R
6/24/25 - 5:38:50 pm
26
    
 
DAVIS BRIAN SCOTT
SO
JS
$442,659
7,466
---
6/20/25
---
$59.29
131,319
-5.4
D
R
6/24/25 - 5:38:43 pm
27
    
 
DAVIS BRIAN SCOTT
SO
JB
---
28
---
6/20/25
---
---
138,785
0.0
D
R
6/24/25 - 5:38:43 pm
28
    
 
TREGILLIS CYNTHIA L
LO,SEC
JS
$12,095
204
---
6/20/25
---
$59.29
157,684
-0.1
D
R
6/23/25 - 6:12:37 pm
29
    
 
TREGILLIS CYNTHIA L
LO,SEC
JB
---
---
---
6/20/25
---
---
157,888
---
D
R
6/23/25 - 6:12:37 pm
30
    
 
GUBBI VIDYADHARA K
COO
JS
$73,223
1,235
---
6/20/25
---
$59.29
172,413
-0.7
D
R
6/23/25 - 6:11:32 pm
31
    
 
GUBBI VIDYADHARA K
COO
JB
---
6
---
6/20/25
---
---
173,648
0.0
D
R
6/23/25 - 6:11:32 pm
32
    
 
DAVIS BRIAN SCOTT
SO
JS
$39,665
669
---
6/20/25
---
$59.29
138,757
-0.5
D
R
6/23/25 - 6:11:17 pm
33
    
 
DAVIS BRIAN SCOTT
SO
JB
---
3
---
6/20/25
---
---
139,426
0.0
D
R
6/23/25 - 6:11:17 pm
34
1y
16
38%
22%
2
ZAMISKA GENE M
VP,CAO
AS
$14,212
245
---
6/17/25
---
$58.01
39,604
-0.6
D
10b
6/17/25 - 7:47:04 pm
35
    
 
ZAMISKA GENE M
VP,CAO
JS
$13,368
240
---
6/14/25
---
$55.70
39,849
-0.6
D
10b
6/17/25 - 7:47:04 pm
36
1y
16
38%
22%
2
ZAMISKA GENE M
VP,CAO
S
$94,888
1,729
---
6/5/25
---
$54.88
40,089
-4.1
D
10b
6/6/25 - 5:24:36 pm
37
    
 
ZAMISKA GENE M
VP,CAO
JS
$57,871
1,142
5/25/25
5/27/25
$50.18
$51.82
41,818
-2.7
D
---
5/28/25 - 4:50:51 pm
38
    
 
TREGILLIS CYNTHIA L
LO,SEC
JS
$52,374
1,035
5/25/25
5/27/25
$50.18
$51.82
157,661
-0.7
D
---
5/28/25 - 4:50:45 pm
39
    
 
GUBBI VIDYADHARA K
COO
JS
$54,610
1,079
5/25/25
5/27/25
$50.18
$51.82
173,642
-0.6
D
---
5/28/25 - 4:50:29 pm
40
    
 
DAVIS BRIAN SCOTT
SO
JS
$49,780
982
5/25/25
5/27/25
$50.18
$51.82
139,423
-0.7
D
---
5/28/25 - 4:50:16 pm
41
    
 
TAN IRVING
CEO,DIR
JS
$99,607
1,985
5/23/25
5/25/25
---
$50.18
603,457
-0.3
D
---
5/28/25 - 4:50:38 pm
42
    
 
ZAMISKA GENE M
VP,CAO
JS
$18,227
360
---
5/20/25
---
$50.63
42,960
-0.8
D
---
5/22/25 - 4:58:01 pm
43
    
 
TREGILLIS CYNTHIA L
LO,SEC
JS
$19,189
379
---
5/20/25
---
$50.63
158,696
-0.2
D
---
5/22/25 - 4:57:54 pm
44
    
 
TAN IRVING
CEO,DIR
JS
$1,975
39
---
5/20/25
---
$50.63
605,442
-0.0
D
---
5/22/25 - 4:57:48 pm
45
    
 
GUBBI VIDYADHARA K
COO
JS
$20,860
412
---
5/20/25
---
$50.63
174,721
-0.2
D
---
5/22/25 - 4:57:40 pm
46
    
 
DAVIS BRIAN SCOTT
SO
JS
$25,214
498
---
5/20/25
---
$50.63
140,405
-0.4
D
---
5/22/25 - 4:57:29 pm
47
9m
1
0%
456%
2
TAN IRVING
CEO,DIR
AS
$548,354
11,379
---
5/13/25
---
$48.19
605,481
-1.8
D
10b
5/14/25 - 5:13:54 pm
48
    
 
SENNESAEL KRIS
VP,CFO
JB
---
171,784
---
5/12/25
---
---
171,784
New
D
R
5/14/25 - 5:13:44 pm
49
    
 
SENNESAEL KRIS
VP,CFO
3
---
---
---
5/12/25
---
---
---
---
---
---
5/14/25 - 5:13:17 pm
50
    
 
TREGILLIS CYNTHIA L
LO,SEC
JS
$42,790
1,172
---
4/20/25
---
$36.51
159,075
-0.7
D
---
4/22/25 - 6:07:07 pm
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