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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: 9/5/25 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
$188.16 $189.23 $63.19 $40,017 213 3,742 1.5% 10.1% 95.72% 0.34%
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
1y
17
18%
33%
1
TEH BAN SENG
VP
S
$1,298,765
6,781
---
9/10/25
---
$191.53
5,190
-56.6
D
---
9/11/25 - 4:05:08 pm
2
    
 
ROMANO GIANLUCA
VP,CFO
JS
$1,266,027
6,608
---
9/9/25
---
$191.59
40,999
-13.9
D
---
9/11/25 - 4:05:39 pm
3
    
 
ROMANO GIANLUCA
VP,CFO
JB
---
13,072
---
9/9/25
---
---
47,534
37.9
D
---
9/11/25 - 4:05:39 pm
4
    
 
MORRIS JOHN CHRISTOPHER
VP,CTO
JS
$478,209
2,496
---
9/9/25
---
$191.59
22,730
-9.9
D
---
9/11/25 - 4:05:30 pm
5
    
 
MORRIS JOHN CHRISTOPHER
VP,CTO
JB
---
5,470
---
9/9/25
---
---
25,527
27.3
D
---
9/11/25 - 4:05:30 pm
6
    
 
MOSLEY WILLIAM D
CEO,DIR
JS
$2,520,941
13,158
---
9/9/25
---
$191.59
463,367
-2.8
D
---
9/11/25 - 4:05:24 pm
7
    
 
MOSLEY WILLIAM D
CEO,DIR
JB
---
26,034
---
9/9/25
---
---
474,421
5.8
D
---
9/11/25 - 4:05:24 pm
8
    
 
CHONG KIAN FATT
VP,OO
JB
---
3,475
---
9/9/25
---
---
4,384
382.3
D
---
9/11/25 - 4:05:16 pm
9
    
 
TEH BAN SENG
VP
JB
---
5,824
---
9/9/25
---
---
11,971
94.7
D
---
9/11/25 - 4:05:08 pm
10
    
 
CONYERS YOLANDA LEE
DIR
AS
$126,599
750
---
9/2/25
$164.64
$170.01
4,305
-14.8
D
10b
9/4/25 - 4:30:18 pm
11
1y
32
31%
26%
1
MOSLEY WILLIAM D
CEO,DIR
AS
$3,379,482
20,000
---
9/2/25
$164.80
$170.19
458,912
-4.2
D
10b
9/4/25 - 4:29:58 pm
12
    
 
SZLOSEK THOMAS A
DIR
3
---
---
---
8/23/25
---
---
---
---
---
---
8/26/25 - 6:01:00 pm
13
1y
17
18%
33%
1
TEH BAN SENG
VP
OS
$261,376
1,724
---
8/11/25
---
$151.61
6,147
-21.9
D
10b
8/12/25 - 6:15:21 pm
14
    
 
TEH BAN SENG
VP
OE
$120,483
1,724
---
8/11/25
---
$64.31
7,871
28.0
D
10b
8/12/25 - 6:15:21 pm
15
1y
9
44%
5%
3
GELDMACHER JAY L
DIR
S
$376,250
2,500
---
8/6/25
---
$150.50
352
-87.7
D
---
8/7/25 - 4:14:11 pm
16
1y
17
18%
33%
1
TEH BAN SENG
VP
S
$915,275
5,905
---
8/1/25
---
$155.00
6,147
-49.0
D
---
8/4/25 - 4:29:44 pm
17
    
 
LEE JAMES CI
LO
AS
$714,145
4,625
7/31/25
8/1/25
$148.87
$153.36
257
-94.7
D
10b
8/4/25 - 4:29:37 pm
18
1y
32
31%
26%
1
MOSLEY WILLIAM D
CEO,DIR
AS
$3,074,963
20,000
---
8/1/25
$151.63
$156.42
478,912
-4.0
D
10b
8/4/25 - 4:29:29 pm
19
    
 
LEE JAMES CI
LO
JS
$337,890
2,305
---
7/22/25
---
$146.59
1,288
-64.2
D
R
7/24/25 - 4:56:09 pm
20
    
 
LEE JAMES CI
LO
JB
---
6,930
---
7/22/25
---
---
6,238
---
D
R
7/24/25 - 4:56:09 pm
21
1y
17
18%
33%
1
TEH BAN SENG
VP
OS
$248,400
1,725
---
7/11/25
---
$144.00
12,052
-12.5
D
10b
7/15/25 - 5:19:44 pm
22
    
 
TEH BAN SENG
VP
OE
$120,552
1,725
---
7/11/25
$64.31
$87.34
13,777
14.3
D
10b
7/15/25 - 5:19:44 pm
23
1y
32
31%
26%
1
MOSLEY WILLIAM D
CEO,DIR
AS
$2,893,120
20,000
---
7/1/25
$143.41
$145.26
498,710
-3.9
D
10b
7/2/25 - 4:49:25 pm
24
1y
17
18%
33%
1
TEH BAN SENG
VP
AS
$77,870
599
---
6/16/25
---
$130.00
10,329
-5.5
D
10b
6/17/25 - 5:40:03 pm
25
1y
17
18%
33%
1
TEH BAN SENG
VP
AS
$222,353
1,723
---
6/11/25
---
$129.05
12,651
-12.0
D
A,R,10b
7/15/25 - 5:10:36 pm
26
    
 
TEH BAN SENG
VP
JB
---
988
---
6/11/25
---
---
14,374
7.4
D
A,R,10b
7/15/25 - 5:10:36 pm
27
    
 
TEH BAN SENG
VP
OE
$120,419
1,723
---
6/11/25
$64.31
$87.34
13,386
14.8
D
A,R,10b
7/15/25 - 5:10:36 pm
28
    
 
ROMANO GIANLUCA
VP,CFO
JS
$108,275
856
---
6/11/25
---
$126.49
39,393
-2.1
D
R
6/12/25 - 4:31:48 pm
29
    
 
ROMANO GIANLUCA
VP,CFO
JB
---
1,694
---
6/11/25
---
---
40,249
4.4
D
R
6/12/25 - 4:31:48 pm
30
    
 
CHONG KIAN FATT
VP,OO
JB
---
678
---
6/11/25
---
---
879
337.3
D
R
6/12/25 - 4:31:40 pm
31
    
 
MORRIS JOHN CHRISTOPHER
VP,CTO
JS
$36,429
288
---
6/11/25
---
$126.49
12,861
-2.2
D
R
6/12/25 - 4:31:25 pm
32
    
 
MORRIS JOHN CHRISTOPHER
VP,CTO
JB
---
941
---
6/11/25
---
---
13,149
7.7
D
R
6/12/25 - 4:31:25 pm
33
1y
17
18%
33%
1
TEH BAN SENG
VP
AS
$222,353
1,723
---
6/11/25
---
$129.05
10,928
-13.6
D
R,10b
6/12/25 - 4:31:12 pm
34
    
 
TEH BAN SENG
VP
JB
---
988
---
6/11/25
---
---
12,651
8.5
D
R,10b
6/12/25 - 4:31:12 pm
35
    
 
MOSLEY WILLIAM D
CEO,DIR
JS
$212,124
1,677
---
6/11/25
---
$126.49
518,710
-0.3
D
R
6/12/25 - 4:31:00 pm
36
    
 
MOSLEY WILLIAM D
CEO,DIR
JB
---
3,318
---
6/11/25
---
---
520,387
0.6
D
R
6/12/25 - 4:31:00 pm
37
    
 
CHONG KIAN FATT
VP,OO
JB
---
201
---
6/9/25
---
---
201
New
D
---
6/10/25 - 5:00:58 pm
38
1y
32
31%
26%
1
MOSLEY WILLIAM D
CEO,DIR
OS
$7,075,425
54,347
---
6/9/25
---
$130.19
515,677
-9.5
D
R,10b
6/10/25 - 5:00:48 pm
39
1y
32
31%
26%
1
MOSLEY WILLIAM D
CEO,DIR
OS
$185,102
1,422
---
6/9/25
---
$130.17
517,069
-0.3
D
R,10b
6/10/25 - 5:00:48 pm
40
    
 
MOSLEY WILLIAM D
CEO,DIR
JB
---
2,814
---
6/9/25
---
---
518,491
0.5
D
R,10b
6/10/25 - 5:00:48 pm
41
    
 
MOSLEY WILLIAM D
CEO,DIR
OE
$2,977,129
54,347
---
6/9/25
---
$54.78
570,024
10.5
D
R,10b
6/10/25 - 5:00:48 pm
42
    
 
ROMANO GIANLUCA
VP,CFO
JS
$63,132
485
---
6/9/25
---
$130.17
38,555
-1.2
D
R
6/10/25 - 5:00:37 pm
43
    
 
ROMANO GIANLUCA
VP,CFO
JB
---
958
---
6/9/25
---
---
39,040
2.5
D
R
6/10/25 - 5:00:37 pm
44
1y
17
18%
33%
1
TEH BAN SENG
VP
AS
$467,220
3,594
---
6/9/25
---
$130.00
11,064
-24.5
D
R,10b
6/10/25 - 5:00:25 pm
45
    
 
TEH BAN SENG
VP
JB
$77,972
599
---
6/9/25
---
$130.17
11,663
5.4
D
R,10b
6/10/25 - 5:00:25 pm
46
    
 
MORRIS JOHN CHRISTOPHER
VP,CTO
JS
$19,916
153
---
6/9/25
---
$130.17
12,208
-1.2
D
R
6/10/25 - 5:00:13 pm
47
    
 
MORRIS JOHN CHRISTOPHER
VP,CTO
JB
---
499
---
6/9/25
---
---
12,361
4.2
D
R
6/10/25 - 5:00:13 pm
48
    
 
TILENIUS STEPHANIE
DIR
S
$344,802
2,693
---
6/5/25
---
$128.04
12,244
-18.0
D
---
6/6/25 - 4:21:03 pm
49
1y
32
31%
26%
1
MOSLEY WILLIAM D
CEO,DIR
OS
$8,391,088
70,000
6/2/25
6/3/25
$117.94
$120.27
515,677
-12.0
D
10b
6/4/25 - 4:41:34 pm
50
    
 
MOSLEY WILLIAM D
CEO,DIR
OE
$2,739,000
50,000
---
6/3/25
---
$54.78
565,677
9.7
D
10b
6/4/25 - 4:41:34 pm
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