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 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
SEAGATE TECHNOLOGY HOLDINGS PLC: STX
Price: 12/12/25 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
$287.64 $308.93 $63.19 $62,669 218 4,443 1.0% 6.7% 92.03% 0.31%
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
    
 
ROMANO GIANLUCA
VP,CFO
JS
$263,823
857
---
12/11/25
---
$307.85
50,351
-1.7
D
R
12/12/25 - 4:18:07 pm
2
    
 
ROMANO GIANLUCA
VP,CFO
JB
---
1,695
---
12/11/25
---
---
51,208
3.4
D
R
12/12/25 - 4:18:07 pm
3
    
 
CHONG KIAN FATT
VP,OO
JB
---
678
---
12/11/25
---
---
1,258
116.9
D
R
12/12/25 - 4:18:01 pm
4
    
 
MORRIS JOHN CHRISTOPHER
VP,CTO
JS
$132,373
430
---
12/11/25
---
$307.85
14,363
-2.9
D
R
12/12/25 - 4:17:55 pm
5
    
 
MORRIS JOHN CHRISTOPHER
VP,CTO
JB
---
941
---
12/11/25
---
---
14,793
6.8
D
R
12/12/25 - 4:17:55 pm
6
1y
18
17%
37%
1
TEH BAN SENG
VP
OS
$594,759
2,010
---
12/11/25
---
$295.90
13,693
-12.8
D
R,10b
12/12/25 - 4:17:48 pm
7
    
 
TEH BAN SENG
VP
JB
---
989
---
12/11/25
---
---
14,292
7.4
D
R,10b
12/12/25 - 4:17:48 pm
8
    
 
TEH BAN SENG
VP
OE
$93,146
1,411
---
12/11/25
---
$64.31
15,703
9.9
D
R,10b
12/12/25 - 4:17:48 pm
9
    
 
MOSLEY WILLIAM D
CEO,DIR
JS
$516,564
1,678
---
12/11/25
---
$307.85
449,895
-0.4
D
R
12/12/25 - 4:17:41 pm
10
    
 
MOSLEY WILLIAM D
CEO,DIR
JB
---
3,319
---
12/11/25
---
---
451,573
0.7
D
R
12/12/25 - 4:17:41 pm
11
    
 
TEH BAN SENG
VP
JB
---
1,262
---
12/9/25
---
---
13,303
10.5
D
---
12/11/25 - 4:05:06 pm
12
    
 
CHONG KIAN FATT
VP,OO
JB
---
580
---
12/9/25
---
---
580
New
D
---
12/11/25 - 4:04:57 pm
13
    
 
MORRIS JOHN CHRISTOPHER
VP,CTO
JS
$145,956
516
---
12/9/25
---
$282.86
13,509
-3.7
D
---
12/11/25 - 4:04:51 pm
14
    
 
MORRIS JOHN CHRISTOPHER
VP,CTO
JB
---
1,130
---
12/9/25
---
---
14,140
8.7
D
---
12/11/25 - 4:04:51 pm
15
    
 
ROMANO GIANLUCA
VP,CFO
JS
$353,858
1,251
---
12/9/25
---
$282.86
48,764
-2.5
D
---
12/11/25 - 4:04:43 pm
16
    
 
ROMANO GIANLUCA
VP,CFO
JB
---
2,473
---
12/9/25
---
---
50,279
5.2
D
---
12/11/25 - 4:04:43 pm
17
    
 
MOSLEY WILLIAM D
CEO,DIR
JS
$747,882
2,644
---
12/9/25
---
$282.86
447,060
-0.6
D
---
12/11/25 - 4:04:36 pm
18
    
 
MOSLEY WILLIAM D
CEO,DIR
JB
---
5,230
---
12/9/25
---
---
449,475
1.2
D
---
12/11/25 - 4:04:36 pm
19
    
 
CONYERS YOLANDA LEE
DIR
AS
$204,683
750
---
12/2/25
---
$272.91
5,601
-11.8
D
10b
12/2/25 - 5:32:35 pm
20
1y
36
28%
38%
1
MOSLEY WILLIAM D
CEO,DIR
AS
$5,420,577
20,000
---
12/1/25
$267.27
$274.89
445,668
-4.3
D
10b
12/2/25 - 5:32:29 pm
21
    
 
ROMANO GIANLUCA
VP,CFO
OS
$2,134,046
8,002
---
11/13/25
$260.03
$275.69
48,291
-14.2
D
10b
11/14/25 - 4:09:09 pm
22
    
 
ROMANO GIANLUCA
VP,CFO
OS
$15,404,707
54,021
---
11/12/25
$279.69
$296.09
56,293
-49.0
D
10b
11/14/25 - 4:09:01 pm
23
    
 
ROMANO GIANLUCA
VP,CFO
OE
$4,246,439
52,529
---
11/12/25
$64.31
$101.34
110,314
90.9
D
10b
11/14/25 - 4:09:01 pm
24
    
 
LEE JAMES CI
VP,LO
AS
$201,419
697
---
11/11/25
---
$288.98
257
-73.1
D
10b
11/12/25 - 4:39:12 pm
25
1y
18
17%
37%
1
TEH BAN SENG
VP
OS
$408,040
1,412
---
11/11/25
---
$288.98
12,041
-10.5
D
10b
11/12/25 - 4:39:04 pm
26
    
 
TEH BAN SENG
VP
OE
$93,215
1,412
---
11/11/25
---
$64.31
13,453
11.7
D
10b
11/12/25 - 4:39:04 pm
27
    
 
ARUMUGAVELU SHANKAR
DIR
S
$1,472,825
5,000
---
11/10/25
---
$294.56
7,626
-39.6
D
---
11/12/25 - 4:38:47 pm
28
1y
18
17%
37%
1
TEH BAN SENG
VP
S
$1,620,000
6,000
---
11/5/25
---
$270.00
12,041
-33.3
D
---
11/5/25 - 4:33:45 pm
29
    
 
TILENIUS STEPHANIE
DIR
S
$545,084
2,046
---
11/3/25
---
$266.41
12,244
-14.3
D
---
11/5/25 - 4:33:36 pm
30
1y
36
28%
38%
1
MOSLEY WILLIAM D
CEO,DIR
AS
$5,256,463
20,000
---
11/3/25
$254.44
$268.65
465,668
-4.1
D
10b
11/5/25 - 4:33:27 pm
31
1y
10
40%
17%
3
GELDMACHER JAY L
DIR
S
$336,375
1,250
---
10/31/25
---
$269.10
1,148
-52.1
D
---
11/3/25 - 4:07:29 pm
32
    
 
CHONG KIAN FATT
VP,OO
S
$1,926,209
7,078
---
10/30/25
---
$272.14
---
All
D
---
11/3/25 - 4:07:37 pm
33
    
 
SZLOSEK THOMAS A
DIR
JS
$26,456
113
---
10/25/25
---
$234.12
357
-24.0
D
A,R
11/12/25 - 4:38:55 pm
34
    
 
SZLOSEK THOMAS A
DIR
JB
---
470
---
10/25/25
---
---
470
New
D
A,R
11/12/25 - 4:38:55 pm
35
    
 
LEE JAMES CI
VP,LO
JS
$116,127
540
---
10/22/25
---
$215.05
954
-36.1
D
R
10/24/25 - 4:15:21 pm
36
    
 
LEE JAMES CI
VP,LO
JB
---
1,237
---
10/22/25
---
---
1,494
481.3
D
R
10/24/25 - 4:15:21 pm
37
    
 
ARUMUGAVELU SHANKAR
DIR
JS
$145,834
647
---
10/19/25
---
$225.40
12,626
-4.9
D
R
10/21/25 - 4:04:54 pm
38
    
 
ARUMUGAVELU SHANKAR
DIR
JB
---
2,693
---
10/19/25
---
---
13,273
25.5
D
R
10/21/25 - 4:04:54 pm
39
    
 
BRUNER JUDY
DIR
JS
$145,834
647
---
10/19/25
---
$225.40
14,314
-4.3
I
R
10/21/25 - 4:04:48 pm
40
    
 
BRUNER JUDY
DIR
JB
---
2,693
---
10/19/25
---
---
14,961
22.0
I
R
10/21/25 - 4:04:48 pm
41
    
 
CANNON MICHAEL R
DIR
JS
$185,504
823
---
10/19/25
---
$225.40
13,439
-5.8
D
R
10/21/25 - 4:04:42 pm
42
    
 
CANNON MICHAEL R
DIR
JB
---
3,427
---
10/19/25
---
---
14,262
31.6
D
R
10/21/25 - 4:04:42 pm
43
    
 
BHATT PRAT
DIR
JS
$145,834
647
---
10/19/25
---
$225.40
13,869
-4.5
D
R
10/21/25 - 4:04:36 pm
44
    
 
BHATT PRAT
DIR
JB
---
2,693
---
10/19/25
---
---
14,516
22.8
D
R
10/21/25 - 4:04:36 pm
45
    
 
HAGGART DYLAN G
DIR
JS
$145,834
647
---
10/19/25
---
$225.40
14,515
-4.3
D
R
10/21/25 - 4:04:30 pm
46
    
 
HAGGART DYLAN G
DIR
JB
---
2,693
---
10/19/25
---
---
15,162
21.6
D
R
10/21/25 - 4:04:30 pm
47
    
 
TILENIUS STEPHANIE
DIR
JS
$145,834
647
---
10/19/25
---
$225.40
14,290
-4.3
D
R
10/21/25 - 4:04:24 pm
48
    
 
TILENIUS STEPHANIE
DIR
JB
---
2,693
---
10/19/25
---
---
14,937
22.0
D
R
10/21/25 - 4:04:24 pm
49
    
 
CLEMMER RICHARD L
DIR
JS
$145,834
647
---
10/19/25
---
$225.40
29,704
-2.1
D
R
10/21/25 - 4:04:18 pm
50
    
 
CLEMMER RICHARD L
DIR
JB
---
2,693
---
10/19/25
---
---
30,351
9.7
D
R
10/21/25 - 4:04:18 pm
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