Home About FAQ Contact Key Subscribe
 
Transaction Types Key To InsiderInsights' Infobase
 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
Reduced Version of Subscription Insider Search
Check all filing types
Uncheck all filing types
Remove The Noise What is the 'Remove The Noise' function?
Insider Portfolio Alerts
Free real time insider alerts
Top Trade Alerts
Free insider trades intra-day
Special Screens Report
Free insider special screens report
Our Input Date Search is an excellent tool to examine the latest insider trades for new long and short investment ideas, but it is only available to paid subscribers.

Click Here to Subscribe

close window
Feature available to paying subscribers only. Subscriber output is also not separated on different pages, so that print outs and Excel downloads contain all of a search's information.

Click Here to Subscribe

close window

Detailed Insider History for:
MKS INC: MKSI
Price: 5/29/26 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
$324.26 $339.00 $80.22 $21,902 68 1,206 0.3% 7.3% 104.96% 0.50%
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
<<PREV
Page
123
 NEXT>>
click column headers to sort
#
View Form
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
    
 
HENRY DAVID PHILIP
VP,SO
S
$1,886,583
6,000
---
6/1/26
---
$314.43
10,422
-36.5
D
---
6/2/26 - 3:13:26 pm
2
1y
42
29%
27%
1
MORA ELIZABETH
DIR
AS
$95,406
300
---
6/1/26
---
$318.02
19,145
-1.5
D
10b
6/2/26 - 3:08:37 pm
3
    
 
DONAHUE JOSEPH B
DIR
S
$688,703
2,100
---
5/27/26
---
$327.95
10,033
-17.3
D
---
5/28/26 - 2:07:51 pm
4
1y
61
41%
14%
2
COLELLA GERALD G
DIR
AS
$6,668,075
20,000
---
5/27/26
$330.38
$338.58
20,017
-50.0
I
10b
5/28/26 - 2:04:31 pm
5
    
 
HENRY DAVID PHILIP
VP,SO
AS
$826,250
2,500
---
5/26/26
---
$330.50
16,341
-13.3
D
10b
5/27/26 - 5:07:38 pm
6
    
 
MAYAMPURATH RAMAKUMAR
VP,CFO
AS
$2,779,379
8,810
---
5/22/26
---
$315.48
1
-100.0
D
10b
5/26/26 - 2:18:47 pm
7
1y
22
41%
25%
1
LEE JOHN TSENG CHUNG
PR,CEO,DIR
AS
$3,154,800
10,000
---
5/22/26
---
$315.48
144,696
-6.5
D
10b
5/26/26 - 2:15:39 pm
8
3m
1
0%
26%
2
CANNONE PETER III
DIR
S
$409,590
1,350
---
5/18/26
---
$303.40
7,794
-14.8
D
---
5/19/26 - 10:46:32 am
9
1y
15
33%
34%
2
MOLONEY JACQUELINE F
DIR
S
$312,197
1,000
---
5/14/26
---
$312.20
8,775
-10.2
D
---
5/15/26 - 10:04:35 am
10
1y
15
33%
34%
2
MOLONEY JACQUELINE F
DIR
S
$446,586
1,400
---
5/13/26
---
$318.99
9,775
-12.5
D
---
5/14/26 - 11:12:40 am
11
    
 
TARANTO ERIC ROBERT
VP
S
$911,328
2,849
---
5/11/26
---
$319.93
12,596
-18.4
D
---
5/12/26 - 3:19:42 pm
12
    
 
MOLONEY JACQUELINE F
DIR
JB
---
782
---
5/11/26
---
---
11,175
7.5
D
R
5/12/26 - 3:17:24 pm
13
    
 
JABRE WISSAM G
DIR
JB
---
782
---
5/11/26
---
---
5,270
17.4
D
R
5/12/26 - 3:15:28 pm
14
    
 
MORA ELIZABETH
DIR
JB
---
782
---
5/11/26
---
---
19,445
4.2
D
R
5/12/26 - 3:13:27 pm
15
1y
3
33%
-7%
1
BURKE KATHLEEN FLAHERTY
VP,GC,SEC
S
$1,393,317
4,355
---
5/11/26
---
$319.94
49,439
-8.1
D
---
5/12/26 - 3:09:12 pm
16
    
 
DONAHUE JOSEPH B
DIR
JB
---
782
---
5/11/26
---
---
12,133
6.9
D
R
5/12/26 - 3:07:00 pm
17
    
 
CANNONE PETER III
DIR
JB
---
782
---
5/11/26
---
---
9,144
9.4
D
R
5/12/26 - 3:04:35 pm
18
    
 
BATRA RAJ
DIR
JB
---
782
---
5/11/26
---
---
16,227
5.1
D
R
5/12/26 - 3:02:15 pm
19
    
 
COLELLA GERALD G
DIR
JB
---
782
---
5/11/26
---
---
8,999
9.5
D
R
5/12/26 - 2:59:34 pm
20
    
 
WILLIAMS JOHN EDWARD
VP
JS
$222,921
826
---
4/17/26
---
$269.89
4,555
-15.4
D
R
4/20/26 - 11:31:19 am
21
    
 
WILLIAMS JOHN EDWARD
VP
JB
---
1,741
---
4/17/26
---
---
5,381
47.8
D
R
4/20/26 - 11:31:19 am
22
    
 
MCCARTHY MICHELLE M
VP,CAO
JS
$377,080
1,375
---
4/15/26
---
$274.15
2,436
-36.1
D
R
4/16/26 - 3:29:01 pm
23
    
 
MCCARTHY MICHELLE M
VP,CAO
JB
---
3,811
---
4/15/26
---
---
3,811
New
D
R
4/16/26 - 3:29:01 pm
24
    
 
MOLONEY JACQUELINE F
DIR
JS
$72,705
340
---
3/12/26
---
$213.77
10,393
-3.2
D
---
3/13/26 - 10:19:51 am
25
    
 
TARANTO ERIC ROBERT
VP
S
$1,007,318
4,568
---
3/6/26
---
$220.52
15,445
-22.8
D
---
3/9/26 - 12:01:15 pm
26
1y
42
29%
27%
1
MORA ELIZABETH
DIR
AS
$71,832
300
---
3/2/26
---
$239.44
18,663
-1.6
D
10b
3/3/26 - 12:18:32 pm
27
    
 
SCHREINER JAMES ALAN
VP,COO
S
$1,045,500
4,100
---
2/24/26
---
$255.00
23,402
-14.9
D
---
2/25/26 - 11:50:07 am
28
1y
61
41%
14%
2
COLELLA GERALD G
DIR
S
$5,068,674
20,000
2/20/26
2/24/26
$252.90
$253.97
40,017
-33.3
I
---
2/24/26 - 2:26:45 pm
29
3m
1
0%
26%
2
CANNONE PETER III
DIR
S
$322,575
1,250
---
2/20/26
---
$258.06
8,362
-13.0
D
---
2/23/26 - 2:48:46 pm
30
    
 
TARANTO ERIC ROBERT
VP
S
$359,623
1,453
---
2/20/26
---
$247.55
20,013
-6.8
D
---
2/23/26 - 2:39:57 pm
31
    
 
HENRY DAVID PHILIP
VP,SO
S
$523,120
2,000
---
2/20/26
---
$261.56
18,841
-9.6
D
---
2/23/26 - 2:38:23 pm
32
3m
1
0%
26%
2
MCCARTHY MICHELLE M
VP,CAO
S
$366,503
1,466
---
2/20/26
$249.57
$250.35
---
All
D
---
2/23/26 - 2:36:47 pm
33
1y
15
33%
34%
2
MOLONEY JACQUELINE F
DIR
S
$205,219
829
---
2/20/26
---
$247.55
10,733
-7.2
D
---
2/23/26 - 2:32:15 pm
34
1y
1
100%
-16%
2
WILLIAMS JOHN EDWARD
VP
S
$523,744
2,043
---
2/20/26
---
$256.41
3,640
-35.9
D
---
2/23/26 - 2:30:07 pm
35
1y
3
33%
-7%
1
BURKE KATHLEEN FLAHERTY
VP,GC,SEC
S
$1,063,500
4,254
---
2/20/26
---
$250.00
53,794
-7.3
D
---
2/23/26 - 2:28:00 pm
36
1y
22
41%
25%
1
LEE JOHN TSENG CHUNG
PR,CEO,DIR
S
$7,703,242
30,000
---
2/20/26
$256.05
$259.70
154,696
-16.2
D
---
2/23/26 - 2:25:50 pm
37
    
 
TARANTO ERIC ROBERT
VP
JS
$707,066
2,712
---
2/17/26
---
$260.74
21,465
-11.2
D
R
2/18/26 - 5:07:34 pm
38
    
 
TARANTO ERIC ROBERT
VP
JB
---
6,473
---
2/17/26
---
---
24,177
36.6
D
R
2/18/26 - 5:07:34 pm
39
    
 
HENRY DAVID PHILIP
VP,SO
JS
$1,068,322
4,097
---
2/17/26
---
$260.74
20,841
-16.4
D
R
2/18/26 - 5:05:02 pm
40
    
 
HENRY DAVID PHILIP
VP,SO
JB
---
9,282
---
2/17/26
---
---
24,939
59.3
D
R
2/18/26 - 5:05:02 pm
41
    
 
SCHREINER JAMES ALAN
VP,COO
JS
$1,132,593
4,344
---
2/17/26
---
$260.74
27,502
-13.6
D
R
2/18/26 - 5:02:56 pm
42
    
 
SCHREINER JAMES ALAN
VP,COO
JB
---
9,225
---
2/17/26
---
---
31,846
40.8
D
R
2/18/26 - 5:02:56 pm
43
    
 
WILLIAMS JOHN EDWARD
VP
JS
$311,711
1,195
---
2/17/26
---
$260.74
5,683
-17.4
D
R
2/18/26 - 5:00:53 pm
44
    
 
WILLIAMS JOHN EDWARD
VP
JB
---
3,238
---
2/17/26
---
---
6,878
89.0
D
R
2/18/26 - 5:00:53 pm
45
    
 
MAYAMPURATH RAMAKUMAR
VP,CFO
JS
$656,006
2,516
---
2/17/26
---
$260.74
8,811
-22.2
D
R
2/18/26 - 4:58:25 pm
46
    
 
MAYAMPURATH RAMAKUMAR
VP,CFO
JB
---
5,660
---
2/17/26
---
---
11,327
99.9
D
R
2/18/26 - 4:58:25 pm
47
    
 
BURKE KATHLEEN FLAHERTY
VP,GC,SEC
JS
$1,386,563
5,318
---
2/17/26
---
$260.74
58,048
-8.4
D
R
2/18/26 - 4:55:50 pm
48
    
 
BURKE KATHLEEN FLAHERTY
VP,GC,SEC
JB
---
12,206
---
2/17/26
---
---
63,366
23.9
D
R
2/18/26 - 4:55:50 pm
49
    
 
LEE JOHN TSENG CHUNG
PR,CEO,DIR
JS
$8,486,646
32,548
---
2/17/26
---
$260.74
184,696
-15.0
D
R
2/18/26 - 4:52:34 pm
50
    
 
LEE JOHN TSENG CHUNG
PR,CEO,DIR
JB
---
69,889
---
2/17/26
---
---
217,244
47.4
D
R
2/18/26 - 4:52:34 pm
<<PREV
Page
123
 NEXT>>
Subscribe Data Module Screens Alerts Newsletter Daily Ratings Reports Free Stuff
Home About FAQ Contact Disclaimer & Terms Of Use Privacy Transaction Codes
© 2026 InsiderInsights.com