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 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
MKS INSTRUMENTS INC: MKSI
Price: 12/20/24 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
$103.53 $147.40 $95.71 $6,967 67 830 0.9% 4.0% 104.99% 0.52%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks Industrial Instruments For Measurement, Display,and Control
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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
9
22%
35%
2
MOLONEY JACQUELINE F
DIR
AS
$34,440
300
---
12/10/24
---
$114.80
9,983
-2.9
D
10b
12/11/24 - 2:11:44 pm
2
    
 
LEE JOHN TSENG CHUNG
PR,CEO,DIR
JS
$343,112
2,994
---
12/6/24
---
$114.60
112,689
-2.6
D
R
12/10/24 - 3:06:13 pm
3
    
 
LEE JOHN TSENG CHUNG
PR,CEO,DIR
JB
---
2,994
---
12/6/24
---
---
115,683
2.7
D
R
12/10/24 - 3:06:13 pm
4
1y
35
26%
20%
1
MORA ELIZABETH
DIR
AS
$31,188
275
---
12/2/24
---
$113.41
17,659
-1.5
D
10b
12/3/24 - 2:40:50 pm
5
    
 
JABRE WISSAM G
DIR
JB
---
2,009
---
11/4/24
---
---
2,009
New
D
R
11/5/24 - 4:29:59 pm
6
    
 
JABRE WISSAM G
DIR
3
---
---
---
11/4/24
---
---
---
---
---
---
11/5/24 - 4:27:04 pm
7
    
 
MAYAMPURATH RAMAKUMAR
VP,CFO,TR
3
---
---
---
10/14/24
---
---
---
---
---
---
10/16/24 - 3:59:54 pm
8
1y
9
22%
35%
2
MOLONEY JACQUELINE F
DIR
AS
$27,225
250
---
10/1/24
---
$108.90
10,283
-2.4
D
10b
10/2/24 - 2:16:52 pm
9
1y
35
26%
20%
1
MORA ELIZABETH
DIR
AS
$31,892
275
---
9/3/24
---
$115.97
17,934
-1.5
D
10b
9/4/24 - 1:28:12 pm
10
    
 
SCHREINER JAMES ALAN
VP,COO
JS
$223,056
1,873
---
8/19/24
---
$119.09
18,705
-9.1
D
R
8/20/24 - 1:45:21 pm
11
    
 
SCHREINER JAMES ALAN
VP,COO
JB
---
3,961
---
8/19/24
---
---
20,578
23.8
D
R
8/20/24 - 1:45:21 pm
12
3m
1
100%
-10%
2
WILLIAMS JOHN EDWARD
VP
S
$213,678
1,800
---
8/16/24
---
$118.71
13
-99.3
D
---
8/19/24 - 11:59:11 am
13
    
 
WILLIAMS JOHN EDWARD
VP
JS
$34,970
307
---
8/15/24
---
$113.91
1,813
-14.5
D
R
8/16/24 - 11:46:59 am
14
    
 
WILLIAMS JOHN EDWARD
VP
JB
---
946
---
8/15/24
---
---
2,120
80.6
D
R
8/16/24 - 11:46:59 am
15
1y
9
22%
35%
2
MOLONEY JACQUELINE F
DIR
AS
$30,865
250
---
8/1/24
---
$123.46
10,533
-2.3
D
10b
8/2/24 - 12:13:59 pm
16
1y
35
26%
20%
1
MORA ELIZABETH
DIR
AS
$35,588
275
---
6/3/24
---
$129.41
18,209
-1.5
D
10b
6/4/24 - 1:45:16 pm
17
    
 
WILLIAMS JOHN EDWARD
VP
3
---
---
---
5/12/24
---
---
1,174
---
D
R
5/15/24 - 3:58:36 pm
18
    
 
WARNER MICHELLE M
DIR
JB
---
1,622
---
5/7/24
---
---
10,852
17.6
D
R
5/8/24 - 5:33:32 pm
19
    
 
MOLONEY JACQUELINE F
DIR
JB
---
1,622
---
5/7/24
---
---
10,783
17.7
D
R
5/8/24 - 5:30:03 pm
20
    
 
MORA ELIZABETH
DIR
JB
---
1,622
---
5/7/24
---
---
18,484
9.6
D
R
5/8/24 - 5:27:05 pm
21
    
 
DONAHUE JOSEPH B
DIR
JB
---
1,622
---
5/7/24
---
---
8,871
22.4
D
R
5/8/24 - 5:24:10 pm
22
    
 
CANNONE PETER III
DIR
JB
---
1,622
---
5/7/24
---
---
7,133
29.4
D
R
5/8/24 - 5:19:36 pm
23
    
 
BATRA RAJ
DIR
JB
---
1,622
---
5/7/24
---
---
12,966
14.3
D
R
5/8/24 - 5:16:46 pm
24
    
 
COLELLA GERARD G
DIR
JB
---
1,622
---
5/7/24
---
---
5,738
39.4
D
R
5/8/24 - 5:13:43 pm
25
1y
35
26%
20%
1
MORA ELIZABETH
DIR
AS
$33,250
250
---
4/1/24
---
$133.00
16,862
-1.5
D
10b
4/2/24 - 11:36:14 am
26
    
 
MCCARTHY MICHELLE M
VP,CAO
3
---
---
---
3/4/24
---
---
---
---
---
---
3/7/24 - 10:51:44 am
27
1y
9
22%
35%
2
MOLONEY JACQUELINE F
DIR
AS
$30,723
250
---
3/1/24
---
$122.89
9,161
-2.7
D
10b
3/4/24 - 11:43:53 am
28
1y
2
0%
6%
1
BURKE KATHLEEN FLAHERTY
VP,GC,SEC
S
$910,738
7,411
---
3/1/24
---
$122.89
42,999
-14.7
D
---
3/4/24 - 11:39:32 am
29
1y
30
53%
20%
2
BAGSHAW SETH H
VP,CFO,TR
S
$4,051,629
32,865
---
2/22/24
$122.79
$124.56
---
-100.0
D
---
2/26/24 - 11:51:10 am
30
1y
9
22%
35%
2
MOLONEY JACQUELINE F
DIR
S
$237,933
1,917
---
2/16/24
---
$124.10
9,411
-16.9
D
---
2/20/24 - 3:21:32 pm
31
    
 
TARANTO ERIC ROBERT
VP
JS
$206,922
1,694
---
2/15/24
---
$122.15
13,055
-11.5
D
R
2/16/24 - 3:21:48 pm
32
    
 
TARANTO ERIC ROBERT
VP
JB
---
5,762
---
2/15/24
---
---
14,749
64.1
D
R
2/16/24 - 3:21:48 pm
33
    
 
SCHREINER JAMES ALAN
VP,COO
JS
$458,795
3,756
---
2/15/24
---
$122.15
16,468
-18.6
D
R
2/16/24 - 3:18:13 pm
34
    
 
SCHREINER JAMES ALAN
VP,COO
JB
---
8,657
---
2/15/24
---
---
20,224
74.8
D
R
2/16/24 - 3:18:13 pm
35
    
 
HENRY DAVID PHILIP
VP,OO,SO
JS
$328,828
2,692
---
2/15/24
---
$122.15
16,530
-14.0
D
R
2/16/24 - 3:13:49 pm
36
    
 
HENRY DAVID PHILIP
VP,OO,SO
JB
---
8,022
---
2/15/24
---
---
19,222
71.6
D
R
2/16/24 - 3:13:49 pm
37
    
 
GITIN MARK MILTON
VP
JS
$311,727
2,552
---
2/15/24
---
$122.15
16,134
-13.7
D
R
2/16/24 - 3:10:39 pm
38
    
 
GITIN MARK MILTON
VP
JB
---
6,841
---
2/15/24
---
---
18,686
57.8
D
R
2/16/24 - 3:10:39 pm
39
    
 
BURKE KATHLEEN FLAHERTY
VP,GC,SEC
JS
$600,001
4,912
---
2/15/24
---
$122.15
50,410
-8.9
D
R
2/16/24 - 3:05:47 pm
40
    
 
BURKE KATHLEEN FLAHERTY
VP,GC,SEC
JB
---
12,458
---
2/15/24
---
---
55,322
29.1
D
R
2/16/24 - 3:05:47 pm
41
    
 
BAGSHAW SETH H
VP,CFO,TR
JS
$1,120,482
9,173
---
2/15/24
---
$122.15
32,866
-21.8
D
R
2/16/24 - 3:02:30 pm
42
    
 
BAGSHAW SETH H
VP,CFO,TR
JB
---
21,366
---
2/15/24
---
---
42,039
103.4
D
R
2/16/24 - 3:02:30 pm
43
    
 
LEE JOHN TSENG CHUNG
PR,CEO,DIR
JS
$3,692,717
30,231
---
2/15/24
---
$122.15
112,441
-21.2
D
R
2/16/24 - 2:58:40 pm
44
    
 
LEE JOHN TSENG CHUNG
PR,CEO,DIR
JB
---
64,534
---
2/15/24
---
---
142,672
82.6
D
R
2/16/24 - 2:58:40 pm
45
1y
58
41%
12%
1
COLELLA GERARD G
DIR
AS
$1,200,003
10,000
---
2/9/24
---
$120.00
68,017
-12.8
I
10b
2/12/24 - 12:21:00 pm
46
1y
58
41%
12%
1
COLELLA GERARD G
DIR
AS
$1,100,004
10,000
---
1/22/24
---
$110.00
78,017
-11.4
I
10b
1/23/24 - 1:45:08 pm
47
1y
35
26%
20%
1
MORA ELIZABETH
DIR
AS
$25,225
250
---
1/2/24
---
$100.90
17,112
-1.4
D
10b
1/3/24 - 1:54:30 pm
48
    
 
BAGSHAW SETH H
VP,CFO,TR
JS
$58,849
699
---
12/1/23
---
$84.19
20,673
-3.3
D
R
12/5/23 - 2:40:05 pm
49
    
 
BAGSHAW SETH H
VP,CFO,TR
JB
---
699
---
12/1/23
---
---
21,372
3.4
D
R
12/5/23 - 2:40:05 pm
50
    
 
LEE JOHN TSENG CHUNG
PR,CEO,DIR
JS
$275,722
3,275
---
12/1/23
---
$84.19
78,139
-4.0
D
R
12/5/23 - 2:36:50 pm
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