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Detailed Insider History for:
WESTERN DIGITAL CORP: WDC
Price: 2/20/26 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
$285.52 $307.50 $28.83 $97,619 339 9,206 0.2% 10.5% 103.41% 0.55%
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
    
 
TREGILLIS CYNTHIA L
LO,SEC
AS
$123,662
438
2/23/26
2/24/26
---
$281.70
134,759
-0.3
D
R,10b
2/24/26 - 5:44:14 pm
2
    
 
TREGILLIS CYNTHIA L
LO,SEC
JS
$386,309
1,353
2/20/26
2/21/26
---
$285.52
135,197
-1.0
D
R,10b
2/24/26 - 5:44:14 pm
3
    
 
TREGILLIS CYNTHIA L
LO,SEC
JB
---
12
2/20/26
2/21/26
---
---
136,541
0.0
D
R,10b
2/24/26 - 5:44:14 pm
4
    
 
TAN IRVING
CEO,DIR
JS
$187,587
657
2/20/26
2/21/26
---
$285.52
622,961
-0.1
D
R
2/24/26 - 5:44:08 pm
5
    
 
TAN IRVING
CEO,DIR
JB
---
32
2/20/26
2/21/26
---
---
623,597
0.0
D
R
2/24/26 - 5:44:08 pm
6
    
 
GUBBI VIDYADHARA K
COO
JS
$262,678
920
2/20/26
2/21/26
---
$285.52
125,952
-0.7
D
R
2/24/26 - 5:43:58 pm
7
    
 
GUBBI VIDYADHARA K
COO
JB
---
8
2/20/26
2/21/26
---
---
126,868
0.0
D
R
2/24/26 - 5:43:58 pm
8
    
 
DAVIS BRIAN SCOTT
SO
JS
$267,247
936
2/20/26
2/21/26
---
$285.52
120,864
-0.8
D
R
2/24/26 - 5:43:46 pm
9
    
 
DAVIS BRIAN SCOTT
SO
JB
---
8
2/20/26
2/21/26
---
---
121,796
0.0
D
R
2/24/26 - 5:43:46 pm
10
    
 
DAVIS BRIAN SCOTT
SO
AS
$2,791,603
10,000
---
2/17/26
$272.97
$285.01
121,792
-7.6
D
10b
2/19/26 - 5:25:40 pm
11
    
 
KIDDOO BRUCE E
DIR
JS
---
910
---
2/12/26
---
---
4,753
-16.1
D
---
2/13/26 - 6:18:23 pm
12
    
 
TREGILLIS CYNTHIA L
LO,SEC
S
$1,833,922
6,780
---
2/6/26
---
$270.49
136,538
-4.7
D
---
2/6/26 - 6:09:36 pm
13
1y
26
50%
7%
2
MASSENGILL MATTHEW E
DIR
AS
$9,616,466
36,926
---
2/5/26
$256.63
$268.06
---
All
I
10b
2/6/26 - 6:09:23 pm
14
9m
1
0%
456%
2
TAN IRVING
CEO,DIR
AS
$5,108,831
20,000
---
2/2/26
$242.23
$250.71
623,586
-3.1
D
10b
2/4/26 - 6:17:08 pm
15
    
 
TREGILLIS CYNTHIA L
LO,SEC
AS
$102,363
447
---
1/21/26
---
$229.00
143,318
-0.3
D
R,10b
1/21/26 - 5:14:28 pm
16
    
 
TREGILLIS CYNTHIA L
LO,SEC
JS
$187,741
842
---
1/20/26
---
$222.97
143,765
-0.6
D
R,10b
1/21/26 - 5:14:28 pm
17
    
 
TREGILLIS CYNTHIA L
LO,SEC
JB
---
11
---
1/20/26
---
---
144,607
0.0
D
R,10b
1/21/26 - 5:14:28 pm
18
    
 
TAN IRVING
CEO,DIR
JS
$175,104
967
---
12/20/25
---
$181.08
643,586
-0.2
D
R
12/22/25 - 4:51:49 pm
19
    
 
TAN IRVING
CEO,DIR
JB
---
43
---
12/20/25
---
---
644,553
0.0
D
R
12/22/25 - 4:51:49 pm
20
    
 
DAVIS BRIAN SCOTT
SO
JS
$174,199
962
---
12/20/25
---
$181.08
131,792
-0.7
D
R
12/22/25 - 4:50:16 pm
21
    
 
DAVIS BRIAN SCOTT
SO
JB
---
6
---
12/20/25
---
---
132,754
0.0
D
R
12/22/25 - 4:50:16 pm
22
    
 
GUBBI VIDYADHARA K
COO
S
$3,723,223
22,820
12/4/25
12/5/25
$159.94
$168.54
126,864
-15.2
D
---
12/8/25 - 4:12:14 pm
23
1y
2
100%
-35%
6
ALEXY KIMBERLY
DIR
S
$320,165
2,000
---
12/4/25
---
$160.08
1,585
-55.8
D
---
12/8/25 - 4:12:01 pm
24
    
 
TREGILLIS CYNTHIA L
LO,SEC
S
$449,752
2,801
---
12/2/25
---
$160.57
144,596
-1.9
D
---
12/3/25 - 6:13:33 pm
25
3m
1
0%
59%
3
COLE MARTIN I
DIR
AS
$975,696
6,000
---
12/1/25
$157.50
$164.95
35,433
-14.5
D
10b
12/3/25 - 6:13:25 pm
26
    
 
TREGILLIS CYNTHIA L
LO,SEC
JS
$119,666
770
---
11/25/25
---
$155.41
147,332
-0.5
D
R
11/26/25 - 4:36:39 pm
27
    
 
TREGILLIS CYNTHIA L
LO,SEC
JB
---
5
---
11/25/25
---
---
148,102
0.0
D
R
11/26/25 - 4:36:39 pm
28
    
 
TAN IRVING
CEO,DIR
JS
$58,123
374
---
11/25/25
---
$155.41
644,510
-0.1
D
R
11/26/25 - 4:36:31 pm
29
    
 
TAN IRVING
CEO,DIR
JB
---
21
---
11/25/25
---
---
644,884
0.0
D
R
11/26/25 - 4:36:31 pm
30
3m
1
0%
78%
4
OULMAN ROXANNE
DIR
S
$277,956
1,800
---
11/25/25
---
$154.42
3,863
-31.8
D
---
11/26/25 - 4:36:22 pm
31
    
 
GUBBI VIDYADHARA K
COO
JS
$177,478
1,142
---
11/25/25
---
$155.41
149,181
-0.8
D
R
11/26/25 - 4:36:10 pm
32
    
 
GUBBI VIDYADHARA K
COO
JB
---
6
---
11/25/25
---
---
150,323
0.0
D
R
11/26/25 - 4:36:10 pm
33
    
 
DAVIS BRIAN SCOTT
SO
JS
$150,903
971
---
11/25/25
---
$155.41
132,748
-0.7
D
R
11/26/25 - 4:36:00 pm
34
    
 
DAVIS BRIAN SCOTT
SO
JB
---
5
---
11/25/25
---
---
133,719
0.0
D
R
11/26/25 - 4:36:00 pm
35
1y
2
100%
-35%
6
ALEXY KIMBERLY
DIR
S
$272,272
1,768
---
11/25/25
---
$154.00
3,585
-33.0
D
---
11/26/25 - 4:35:48 pm
36
    
 
TREGILLIS CYNTHIA L
LO,SEC
JS
$207,370
1,487
11/20/25
11/21/25
---
$139.19
148,097
-1.0
D
R
11/24/25 - 5:45:54 pm
37
    
 
TREGILLIS CYNTHIA L
LO,SEC
JB
---
9
11/20/25
11/21/25
---
---
149,577
0.0
D
R
11/24/25 - 5:45:54 pm
38
    
 
TAN IRVING
CEO,DIR
JS
$87,519
628
11/20/25
11/21/25
---
$139.19
644,863
-0.1
D
R
11/24/25 - 5:45:47 pm
39
    
 
TAN IRVING
CEO,DIR
JB
---
24
11/20/25
11/21/25
---
---
645,475
0.0
D
R
11/24/25 - 5:45:47 pm
40
    
 
GUBBI VIDYADHARA K
COO
JS
$179,475
1,285
11/20/25
11/21/25
---
$139.19
150,317
-0.8
D
R
11/24/25 - 5:45:31 pm
41
    
 
GUBBI VIDYADHARA K
COO
JB
---
6
11/20/25
11/21/25
---
---
151,599
0.0
D
R
11/24/25 - 5:45:31 pm
42
    
 
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
43
    
 
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
44
    
 
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
45
    
 
SENNESAEL KRIS
CFO
JB
---
99
---
11/20/25
---
---
206,646
0.0
D
R
11/24/25 - 5:45:39 pm
46
    
 
FELLER BRAD
VP,CAO
JB
---
9,907
---
11/20/25
---
---
9,907
New
D
R
11/24/25 - 5:45:14 pm
47
    
 
STREETER STEPHANIE A
DIR
JB
---
1,585
---
11/20/25
---
---
1,585
New
D
R
11/21/25 - 5:57:04 pm
48
    
 
MASSENGILL MATTHEW E
DIR
JB
---
1,585
---
11/20/25
---
---
28,897
5.8
D
R
11/21/25 - 5:31:55 pm
49
    
 
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
50
    
 
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
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