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MKSI US
Mks Inc
(MKSI US)
$196.55
+0.44
0.22%
Ext:
$194.98
-1.57
0.80%
(Market Closed · 23:47:22 UTC)
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Financials
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Short Interest
Employees
SEC Filings by Owner
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Insider Ownership
BERTUCCI JOHN R
(168)
Expand
4
PRIMARY DOCUMENT
9 May 2019
4
PRIMARY DOCUMENT
11 Oct 2018
4
PRIMARY DOCUMENT
23 May 2018
4
PRIMARY DOCUMENT
10 May 2018
4
PRIMARY DOCUMENT
4 May 2018
4
PRIMARY DOCUMENT
11 May 2017
4
PRIMARY DOCUMENT
4 May 2016
4
PRIMARY DOCUMENT
5 Feb 2016
4
PRIMARY DOCUMENT
22 Jun 2015
4
PRIMARY DOCUMENT
6 May 2015
COLELLA GERALD G
(138)
Expand
4
PRIMARY DOCUMENT
28 May
4
PRIMARY DOCUMENT
12 May
4
PRIMARY DOCUMENT
24 Feb
4
PRIMARY DOCUMENT
13 May 2025
4
PRIMARY DOCUMENT
19 Feb 2025
4
PRIMARY DOCUMENT
8 May 2024
4
PRIMARY DOCUMENT
12 Feb 2024
4
PRIMARY DOCUMENT
23 Jan 2024
4
PRIMARY DOCUMENT
1 Sep 2023
4
PRIMARY DOCUMENT
17 May 2023
BERTUCCI CLAIRE R
(119)
Expand
4
Statement of changes in beneficial ownership
1 May 2008
4
Statement of changes in beneficial ownership
1 May 2008
4
Statement of changes in beneficial ownership
7 Apr 2008
4
Statement of changes in beneficial ownership
4 Apr 2008
4
Statement of changes in beneficial ownership
11 Mar 2008
4
Statement of changes in beneficial ownership
10 Mar 2008
4
Statement of changes in beneficial ownership
6 Feb 2008
4
Statement of changes in beneficial ownership
5 Feb 2008
4
Statement of changes in beneficial ownership
10 Jan 2008
4
Statement of changes in beneficial ownership
7 Jan 2008
Lee John Tseng-Chung
(101)
Expand
4
PRIMARY DOCUMENT
17 Aug
4
PRIMARY DOCUMENT
26 May
4
PRIMARY DOCUMENT
23 Feb
4
PRIMARY DOCUMENT
18 Feb
4
PRIMARY DOCUMENT
9 Feb
4
PRIMARY DOCUMENT
4 Nov 2025
4
PRIMARY DOCUMENT
19 Feb 2025
4
PRIMARY DOCUMENT
11 Feb 2025
4
PRIMARY DOCUMENT
10 Dec 2024
4
PRIMARY DOCUMENT
16 Feb 2024
WEIGNER RONALD
(100)
Expand
5
PRIMARY DOCUMENT
12 Feb 2010
4
PRIMARY DOCUMENT
18 Mar 2009
4
PRIMARY DOCUMENT
12 Mar 2009
4
PRIMARY DOCUMENT
4 Mar 2009
4
PRIMARY DOCUMENT
18 Feb 2009
4
Statement of changes in beneficial ownership
6 Jun 2008
4
Statement of changes in beneficial ownership
12 May 2008
4
Statement of changes in beneficial ownership
11 Mar 2008
4
Statement of changes in beneficial ownership
4 Mar 2008
4
Statement of changes in beneficial ownership
5 Dec 2007
BAGSHAW SETH H
(89)
Expand
4
PRIMARY DOCUMENT
26 Feb 2024
4
PRIMARY DOCUMENT
16 Feb 2024
4
PRIMARY DOCUMENT
6 Feb 2024
4
PRIMARY DOCUMENT
5 Dec 2023
4
PRIMARY DOCUMENT
7 Sep 2023
4
PRIMARY DOCUMENT
16 Feb 2023
4
PRIMARY DOCUMENT
9 Feb 2023
4
PRIMARY DOCUMENT
5 Dec 2022
4
PRIMARY DOCUMENT
31 Oct 2022
4
PRIMARY DOCUMENT
2 May 2022
EMERSON ELECTRIC CO
(74)
Expand
4
Statement of changes in beneficial ownership
21 Sep 2006
4
Statement of changes in beneficial ownership
19 Sep 2006
4
Statement of changes in beneficial ownership
8 Sep 2006
4
Statement of changes in beneficial ownership
6 Sep 2006
4
Statement of changes in beneficial ownership
1 Sep 2006
4
Statement of changes in beneficial ownership
30 Aug 2006
4
Statement of changes in beneficial ownership
28 Aug 2006
4
Statement of changes in beneficial ownership
22 Aug 2006
4
Statement of changes in beneficial ownership
18 Aug 2006
4
Statement of changes in beneficial ownership
16 Aug 2006
Mora Elizabeth
(62)
Expand
4
PRIMARY DOCUMENT
2 Sep
4
PRIMARY DOCUMENT
2 Jun
4
PRIMARY DOCUMENT
12 May
4
PRIMARY DOCUMENT
3 Mar
4
PRIMARY DOCUMENT
3 Dec 2025
4
PRIMARY DOCUMENT
3 Sep 2025
4
PRIMARY DOCUMENT
3 Jun 2025
4
PRIMARY DOCUMENT
13 May 2025
4
PRIMARY DOCUMENT
4 Mar 2025
4
PRIMARY DOCUMENT
3 Dec 2024
STEWART WILLIAM D
(61)
Expand
4
PRIMARY DOCUMENT
24 Apr 2012
4
PRIMARY DOCUMENT
3 Apr 2012
4
PRIMARY DOCUMENT
19 Mar 2012
4
PRIMARY DOCUMENT
6 Mar 2012
4
PRIMARY DOCUMENT
1 Mar 2012
4/A
PRIMARY DOCUMENT
27 Feb 2012
4
PRIMARY DOCUMENT
27 Feb 2012
4
PRIMARY DOCUMENT
14 Feb 2012
5
PRIMARY DOCUMENT
20 Jan 2012
5/A
PRIMARY DOCUMENT
12 Apr 2012
HANLEY PETER
(60)
Expand
4
PRIMARY DOCUMENT
8 Aug 2018
4
PRIMARY DOCUMENT
7 Jun 2018
4
PRIMARY DOCUMENT
14 May 2018
4
PRIMARY DOCUMENT
10 May 2018
4
PRIMARY DOCUMENT
15 Mar 2018
4
PRIMARY DOCUMENT
21 Feb 2018
4
PRIMARY DOCUMENT
15 Feb 2018
4
PRIMARY DOCUMENT
6 Dec 2017
4
PRIMARY DOCUMENT
7 Sep 2017
4
PRIMARY DOCUMENT
31 Jul 2017
BERLINGHIERI LEO
(58)
Expand
4
PRIMARY DOCUMENT
2 Jan 2014
4
PRIMARY DOCUMENT
17 Dec 2013
4
PRIMARY DOCUMENT
21 Oct 2013
4
PRIMARY DOCUMENT
5 Mar 2013
4
PRIMARY DOCUMENT
4 Mar 2013
4
PRIMARY DOCUMENT
26 Feb 2013
4
PRIMARY DOCUMENT
1 Feb 2013
4
PRIMARY DOCUMENT
19 Mar 2012
4
PRIMARY DOCUMENT
6 Mar 2012
4
PRIMARY DOCUMENT
1 Mar 2012
SMITH JOHN ALEXANDER
(58)
Expand
4
PRIMARY DOCUMENT
8 Jul 2013
4
PRIMARY DOCUMENT
6 Mar 2013
4
PRIMARY DOCUMENT
5 Mar 2013
4
PRIMARY DOCUMENT
4 Mar 2013
4
PRIMARY DOCUMENT
28 Feb 2013
4
PRIMARY DOCUMENT
26 Feb 2013
4
PRIMARY DOCUMENT
1 Feb 2013
4
PRIMARY DOCUMENT
2 May 2012
4
PRIMARY DOCUMENT
19 Mar 2012
4
PRIMARY DOCUMENT
7 Mar 2012
ANDERSON ROBERT R
(53)
Expand
4
PRIMARY DOCUMENT
18 May 2017
4
PRIMARY DOCUMENT
15 Mar 2017
4
PRIMARY DOCUMENT
11 Jan 2017
4
PRIMARY DOCUMENT
23 Nov 2016
4
PRIMARY DOCUMENT
9 May 2016
4
PRIMARY DOCUMENT
4 May 2016
4
PRIMARY DOCUMENT
4 Jan 2016
4
PRIMARY DOCUMENT
29 May 2015
4
PRIMARY DOCUMENT
22 May 2015
4
PRIMARY DOCUMENT
15 May 2015
ASTEC AMERICA INC
(47)
Expand
4
Statement of changes in beneficial ownership
7 Jul 2006
4
Statement of changes in beneficial ownership
5 Jul 2006
4
Statement of changes in beneficial ownership
30 Jun 2006
4
Statement of changes in beneficial ownership
28 Jun 2006
4
Statement of changes in beneficial ownership
26 Jun 2006
4
Statement of changes in beneficial ownership
22 Jun 2006
4
Statement of changes in beneficial ownership
21 Jun 2006
4
Statement of changes in beneficial ownership
19 Jun 2006
4
Statement of changes in beneficial ownership
15 Jun 2006
4
Statement of changes in beneficial ownership
13 Jun 2006
KLIMM ROBERT L
(41)
Expand
4
Statement of changes in beneficial ownership
1 May 2007
4
Statement of changes in beneficial ownership
1 May 2007
4
Statement of changes in beneficial ownership
24 Apr 2007
4
Statement of changes in beneficial ownership
5 Mar 2007
4
Statement of changes in beneficial ownership
5 Mar 2007
4
Statement of changes in beneficial ownership
16 Feb 2007
4
Statement of changes in beneficial ownership
31 Jan 2007
4
Statement of changes in beneficial ownership
12 Jan 2007
4
Statement of changes in beneficial ownership
19 Dec 2006
4
Statement of changes in beneficial ownership
18 Dec 2006
Moloney Jacqueline F
(38)
Expand
4
PRIMARY DOCUMENT
15 May
4
PRIMARY DOCUMENT
14 May
4
PRIMARY DOCUMENT
12 May
4
PRIMARY DOCUMENT
13 Mar
4
PRIMARY DOCUMENT
23 Feb
4
PRIMARY DOCUMENT
2 Oct 2025
4
PRIMARY DOCUMENT
4 Aug 2025
4
PRIMARY DOCUMENT
13 May 2025
4
PRIMARY DOCUMENT
4 Mar 2025
4
PRIMARY DOCUMENT
11 Dec 2024
Quirk Brian Charles
(37)
Expand
4
PRIMARY DOCUMENT
8 May 2018
4
PRIMARY DOCUMENT
16 Feb 2018
4
PRIMARY DOCUMENT
13 Feb 2018
4
PRIMARY DOCUMENT
6 Feb 2018
4
PRIMARY DOCUMENT
7 Nov 2017
4
PRIMARY DOCUMENT
9 Aug 2017
4
PRIMARY DOCUMENT
12 May 2017
4
PRIMARY DOCUMENT
11 May 2017
4
PRIMARY DOCUMENT
4 Apr 2017
4
PRIMARY DOCUMENT
16 Feb 2017
CHUTE RICHARD S
(30)
Expand
4
PRIMARY DOCUMENT
9 May 2019
4
PRIMARY DOCUMENT
10 May 2018
4
PRIMARY DOCUMENT
11 May 2017
4
PRIMARY DOCUMENT
10 May 2016
4
PRIMARY DOCUMENT
4 May 2016
4
PRIMARY DOCUMENT
16 Jul 2015
4
PRIMARY DOCUMENT
6 May 2015
4
PRIMARY DOCUMENT
3 Mar 2015
4
PRIMARY DOCUMENT
5 Jun 2014
4
PRIMARY DOCUMENT
12 May 2014
Abrams John R
(29)
Expand
4
PRIMARY DOCUMENT
19 Feb 2019
4
PRIMARY DOCUMENT
30 Jan 2019
4
PRIMARY DOCUMENT
7 Jun 2018
4
PRIMARY DOCUMENT
22 Feb 2018
4
PRIMARY DOCUMENT
16 Feb 2018
4
PRIMARY DOCUMENT
13 Feb 2018
4
PRIMARY DOCUMENT
12 May 2017
4
PRIMARY DOCUMENT
15 Mar 2017
4
PRIMARY DOCUMENT
16 Feb 2017
4
PRIMARY DOCUMENT
14 Feb 2017
Schreiner James Alan
(29)
Expand
4
PRIMARY DOCUMENT
16 Jun
4
PRIMARY DOCUMENT
11 Jun
4
PRIMARY DOCUMENT
25 Feb
4
PRIMARY DOCUMENT
18 Feb
4
PRIMARY DOCUMENT
9 Feb
4
PRIMARY DOCUMENT
23 Oct 2025
4
PRIMARY DOCUMENT
19 Sep 2025
4
PRIMARY DOCUMENT
19 Aug 2025
4
PRIMARY DOCUMENT
5 Aug 2025
4
PRIMARY DOCUMENT
8 Jul 2025
Amon Cristina
(28)
Expand
4
PRIMARY DOCUMENT
17 Dec 2015
4
PRIMARY DOCUMENT
6 May 2015
4
PRIMARY DOCUMENT
4 Nov 2014
4
PRIMARY DOCUMENT
12 May 2014
4
PRIMARY DOCUMENT
5 Mar 2014
4
PRIMARY DOCUMENT
8 May 2013
4
PRIMARY DOCUMENT
8 May 2012
4
PRIMARY DOCUMENT
14 Nov 2011
4
PRIMARY DOCUMENT
3 May 2011
4
PRIMARY DOCUMENT
18 Feb 2011
Hadar Ron
(25)
Expand
4
Statement of changes in beneficial ownership
7 Jun 2007
4
Statement of changes in beneficial ownership
6 Jun 2007
4
Statement of changes in beneficial ownership
26 Apr 2007
4
Statement of changes in beneficial ownership
23 Apr 2007
4
Statement of changes in beneficial ownership
16 Apr 2007
4
Statement of changes in beneficial ownership
9 Mar 2007
4
Statement of changes in beneficial ownership
5 Mar 2007
4
Statement of changes in beneficial ownership
10 May 2006
4
Statement of changes in beneficial ownership
10 May 2006
4
Statement of changes in beneficial ownership
16 Mar 2006
Burke Kathleen Flaherty
(25)
Expand
4
PRIMARY DOCUMENT
12 May
4
PRIMARY DOCUMENT
23 Feb
4
PRIMARY DOCUMENT
18 Feb
4
PRIMARY DOCUMENT
9 Feb
4
PRIMARY DOCUMENT
4 Nov 2025
4
PRIMARY DOCUMENT
19 Feb 2025
4
PRIMARY DOCUMENT
11 Feb 2025
4
PRIMARY DOCUMENT
4 Mar 2024
4
PRIMARY DOCUMENT
16 Feb 2024
4
PRIMARY DOCUMENT
6 Feb 2024
Henry David Philip
(24)
Expand
4
PRIMARY DOCUMENT
2 Jun
4
PRIMARY DOCUMENT
27 May
4
PRIMARY DOCUMENT
23 Feb
4
PRIMARY DOCUMENT
18 Feb
4
PRIMARY DOCUMENT
9 Feb
4
PRIMARY DOCUMENT
19 Sep 2025
4
PRIMARY DOCUMENT
7 Jul 2025
4
PRIMARY DOCUMENT
19 Feb 2025
4
PRIMARY DOCUMENT
11 Feb 2025
4
PRIMARY DOCUMENT
16 Feb 2024
VALENTE LOUIS P
(22)
Expand
4
PRIMARY DOCUMENT
7 Feb 2012
4
PRIMARY DOCUMENT
7 Nov 2011
4
PRIMARY DOCUMENT
29 Jul 2011
4
PRIMARY DOCUMENT
9 May 2011
4
PRIMARY DOCUMENT
3 May 2011
4
PRIMARY DOCUMENT
20 Dec 2010
4
PRIMARY DOCUMENT
19 May 2010
4
PRIMARY DOCUMENT
5 May 2010
4
PRIMARY DOCUMENT
4 Aug 2009
4
PRIMARY DOCUMENT
6 May 2009
Beecher Gregory R
(22)
Expand
4
PRIMARY DOCUMENT
6 May 2020
4
PRIMARY DOCUMENT
20 Nov 2019
4
PRIMARY DOCUMENT
9 May 2019
4
PRIMARY DOCUMENT
10 May 2018
4
PRIMARY DOCUMENT
11 May 2017
4
PRIMARY DOCUMENT
5 May 2017
4
PRIMARY DOCUMENT
2 May 2017
4
PRIMARY DOCUMENT
4 May 2016
4
PRIMARY DOCUMENT
6 May 2015
4
PRIMARY DOCUMENT
12 May 2014
Taranto Eric Robert
(22)
Expand
4
PRIMARY DOCUMENT
12 May
4
PRIMARY DOCUMENT
9 Mar
4
PRIMARY DOCUMENT
23 Feb
4
PRIMARY DOCUMENT
18 Feb
4
PRIMARY DOCUMENT
9 Feb
4
PRIMARY DOCUMENT
19 Feb 2025
4
PRIMARY DOCUMENT
11 Feb 2025
4
PRIMARY DOCUMENT
16 Feb 2024
4
PRIMARY DOCUMENT
6 Feb 2024
4
PRIMARY DOCUMENT
19 Apr 2023
KAHL HANS JOCHEN
(21)
Expand
4
PRIMARY DOCUMENT
3 May 2011
4
PRIMARY DOCUMENT
5 May 2010
4
PRIMARY DOCUMENT
28 Apr 2010
4
PRIMARY DOCUMENT
6 May 2009
4
Statement of changes in beneficial ownership
15 May 2008
4
Statement of changes in beneficial ownership
9 May 2008
4
Statement of changes in beneficial ownership
6 May 2008
5
Annual statement of beneficial ownership
6 Feb 2007
4
Statement of changes in beneficial ownership
15 May 2007
4
Statement of changes in beneficial ownership
8 May 2007
Eyerman Paul
(18)
Expand
4
PRIMARY DOCUMENT
3 Feb 2014
4
PRIMARY DOCUMENT
4 Dec 2013
4
PRIMARY DOCUMENT
4 Jun 2013
4
PRIMARY DOCUMENT
12 Apr 2013
4
PRIMARY DOCUMENT
11 Apr 2013
4
PRIMARY DOCUMENT
26 Feb 2013
4
PRIMARY DOCUMENT
1 Feb 2013
4
PRIMARY DOCUMENT
6 Dec 2012
4
PRIMARY DOCUMENT
7 Jun 2012
4
PRIMARY DOCUMENT
30 May 2012
Loomis Paul
(16)
Expand
4
PRIMARY DOCUMENT
3 Feb 2014
4
PRIMARY DOCUMENT
31 May 2013
4
PRIMARY DOCUMENT
15 Apr 2013
4
PRIMARY DOCUMENT
12 Apr 2013
4
PRIMARY DOCUMENT
11 Apr 2013
4
PRIMARY DOCUMENT
26 Feb 2013
4
PRIMARY DOCUMENT
1 Feb 2013
4
PRIMARY DOCUMENT
30 May 2012
4
PRIMARY DOCUMENT
12 Apr 2012
4
PRIMARY DOCUMENT
24 Feb 2012
Gitin Mark Milton
(16)
Expand
4
PRIMARY DOCUMENT
16 Feb 2024
4
PRIMARY DOCUMENT
6 Feb 2024
4
PRIMARY DOCUMENT
19 Apr 2023
4
PRIMARY DOCUMENT
16 Feb 2023
4
PRIMARY DOCUMENT
9 Feb 2023
4
PRIMARY DOCUMENT
2 May 2022
4
PRIMARY DOCUMENT
19 Apr 2022
4
PRIMARY DOCUMENT
16 Feb 2022
4
PRIMARY DOCUMENT
24 Jan 2022
4
PRIMARY DOCUMENT
12 Jan 2022
Williams John Edward
(13)
Expand
4
PRIMARY DOCUMENT
4 Aug
4
PRIMARY DOCUMENT
20 Apr
4
PRIMARY DOCUMENT
23 Feb
4
PRIMARY DOCUMENT
18 Feb
4
PRIMARY DOCUMENT
9 Feb
4
PRIMARY DOCUMENT
18 Aug 2025
4
PRIMARY DOCUMENT
18 Apr 2025
4
PRIMARY DOCUMENT
19 Feb 2025
4
PRIMARY DOCUMENT
11 Feb 2025
4
PRIMARY DOCUMENT
19 Aug 2024
Werth Dennis L
(11)
Expand
4
PRIMARY DOCUMENT
3 Apr 2018
4
PRIMARY DOCUMENT
16 Feb 2018
4
PRIMARY DOCUMENT
13 Feb 2018
4
PRIMARY DOCUMENT
18 Dec 2017
4
PRIMARY DOCUMENT
19 Jun 2017
4
PRIMARY DOCUMENT
3 Apr 2017
4
PRIMARY DOCUMENT
17 Feb 2017
4
PRIMARY DOCUMENT
14 Feb 2017
4
PRIMARY DOCUMENT
21 Nov 2016
4
PRIMARY DOCUMENT
2 Jun 2016
CANNONE PETER III
(10)
Expand
4
PRIMARY DOCUMENT
19 May
4
PRIMARY DOCUMENT
12 May
4
PRIMARY DOCUMENT
23 Feb
4
PRIMARY DOCUMENT
13 May 2025
4
PRIMARY DOCUMENT
8 May 2024
4
PRIMARY DOCUMENT
17 May 2023
4
PRIMARY DOCUMENT
2 Aug 2022
4
PRIMARY DOCUMENT
11 May 2022
3
PRIMARY DOCUMENT
12 May 2021
4
PRIMARY DOCUMENT
12 May 2021
Batra Raj
(10)
Expand
4
PRIMARY DOCUMENT
12 May
4
PRIMARY DOCUMENT
13 May 2025
4
PRIMARY DOCUMENT
8 May 2024
4
PRIMARY DOCUMENT
17 May 2023
4
PRIMARY DOCUMENT
11 May 2022
4
PRIMARY DOCUMENT
12 May 2021
4
PRIMARY DOCUMENT
12 May 2020
4
PRIMARY DOCUMENT
9 May 2019
4
PRIMARY DOCUMENT
2 Oct 2018
3
PRIMARY DOCUMENT
2 Oct 2018
Schneider Frank
(9)
Expand
4
Statement of changes in beneficial ownership
27 Aug 2007
4
Statement of changes in beneficial ownership
24 May 2007
4
Statement of changes in beneficial ownership
5 Mar 2007
4
Statement of changes in beneficial ownership
26 Feb 2007
4
Statement of changes in beneficial ownership
4 Dec 2006
4
Statement of changes in beneficial ownership
27 Nov 2006
4
Statement of changes in beneficial ownership
24 Aug 2006
4
Statement of changes in beneficial ownership
23 Feb 2006
3
Initial statement of beneficial ownership
13 Jan 2006
Donahue Joseph B
(9)
Expand
4
PRIMARY DOCUMENT
28 May
4
PRIMARY DOCUMENT
12 May
4
PRIMARY DOCUMENT
13 May 2025
4
PRIMARY DOCUMENT
8 May 2024
4
PRIMARY DOCUMENT
17 May 2023
4
PRIMARY DOCUMENT
11 May 2022
4
PRIMARY DOCUMENT
12 May 2021
4
PRIMARY DOCUMENT
12 May 2020
3
PRIMARY DOCUMENT
12 May 2020
SMITH DONALD K
(8)
Expand
4
Statement of changes in beneficial ownership
6 Jan 2004
5
Annual statement of beneficial ownership
4 Feb 2004
4
Statement of changes in beneficial ownership
12 Dec 2003
4
Statement of changes in beneficial ownership
13 Nov 2003
4
Statement of changes in beneficial ownership
5 Nov 2003
4/A
Statement of changes in beneficial ownership (amendment)
23 Jul 2003
4
Statement of changes in beneficial ownership
2 Jul 2003
4
Statement of changes in beneficial ownership
12 Nov 2003
Warner Michelle M
(7)
Expand
4
PRIMARY DOCUMENT
8 May 2024
4
PRIMARY DOCUMENT
17 May 2023
4
PRIMARY DOCUMENT
11 May 2022
4
PRIMARY DOCUMENT
12 May 2021
4
PRIMARY DOCUMENT
12 May 2020
4
PRIMARY DOCUMENT
9 May 2019
3
PRIMARY DOCUMENT
9 May 2019
McCarthy Michelle M
(7)
Expand
4
PRIMARY DOCUMENT
8 Jun
4
PRIMARY DOCUMENT
16 Apr
4
PRIMARY DOCUMENT
23 Feb
4
PRIMARY DOCUMENT
17 Apr 2025
4
PRIMARY DOCUMENT
19 Aug 2024
4
PRIMARY DOCUMENT
16 Apr 2024
3
PRIMARY DOCUMENT
7 Mar 2024
Mayampurath Ramakumar
(7)
Expand
4
PRIMARY DOCUMENT
26 May
4
PRIMARY DOCUMENT
18 Feb
4
PRIMARY DOCUMENT
9 Feb
4
PRIMARY DOCUMENT
18 Nov 2025
4
PRIMARY DOCUMENT
19 Feb 2025
4
PRIMARY DOCUMENT
18 Nov 2024
3
PRIMARY DOCUMENT
16 Oct 2024
ROBBINS OWEN W
(5)
Expand
4
Statement of changes in beneficial ownership
10 May 2006
4
Statement of changes in beneficial ownership
6 Mar 2006
4
Statement of changes in beneficial ownership
10 May 2005
4
Statement of changes in beneficial ownership
14 May 2004
5
Annual statement of beneficial ownership
4 Feb 2004
PHILLIPPY ROBERT J
(4)
Expand
4
PRIMARY DOCUMENT
16 Feb 2018
4
PRIMARY DOCUMENT
11 May 2017
3
PRIMARY DOCUMENT
6 Jul 2016
4
PRIMARY DOCUMENT
6 Jul 2016
Hess Rick D
(4)
Expand
4
PRIMARY DOCUMENT
9 May 2019
4
PRIMARY DOCUMENT
10 May 2018
4
PRIMARY DOCUMENT
11 May 2017
3
PRIMARY DOCUMENT
10 May 2017
JABRE WISSAM G
(4)
Expand
4
PRIMARY DOCUMENT
12 May
4
PRIMARY DOCUMENT
13 May 2025
4
PRIMARY DOCUMENT
5 Nov 2024
3
PRIMARY DOCUMENT
5 Nov 2024
HENRY JANICE K
(2)
Expand
4
PRIMARY DOCUMENT
12 May 2020
3
PRIMARY DOCUMENT
12 May 2020
WILD GEOFFREY
(2)
Expand
4
PRIMARY DOCUMENT
18 Aug 2022
3
PRIMARY DOCUMENT
18 Aug 2022
TC Group Cayman Investment Holdings, L.P.
(2)
Expand
4
Statement of changes in beneficial ownership
10 May 2023
3
Initial statement of beneficial ownership
29 Aug 2022
Carlyle Group Inc.
(2)
Expand
4
Statement of changes in beneficial ownership
10 May 2023
3
Initial statement of beneficial ownership
29 Aug 2022
Carlyle Holdings II GP L.L.C.
(2)
Expand
4
Statement of changes in beneficial ownership
10 May 2023
3
Initial statement of beneficial ownership
29 Aug 2022
Carlyle Holdings II L.L.C.
(2)
Expand
4
Statement of changes in beneficial ownership
10 May 2023
3
Initial statement of beneficial ownership
29 Aug 2022
TC Group Cayman Investment Holdings Sub L.P.
(2)
Expand
4
Statement of changes in beneficial ownership
10 May 2023
3
Initial statement of beneficial ownership
29 Aug 2022
CG Subsidiary Holdings L.L.C.
(2)
Expand
4
Statement of changes in beneficial ownership
10 May 2023
3
Initial statement of beneficial ownership
29 Aug 2022
TC Group VI Cayman, L.L.C.
(2)
Expand
4
Statement of changes in beneficial ownership
10 May 2023
3
Initial statement of beneficial ownership
29 Aug 2022
Carlyle Partners VI Cayman Holdings, L.P.
(2)
Expand
4
Statement of changes in beneficial ownership
10 May 2023
3
Initial statement of beneficial ownership
29 Aug 2022
TC Group VI Cayman, L.P.
(2)
Expand
4
Statement of changes in beneficial ownership
10 May 2023
3
Initial statement of beneficial ownership
29 Aug 2022
Gamma Holding Co Ltd
(2)
Expand
4
Statement of changes in beneficial ownership
10 May 2023
3
Initial statement of beneficial ownership
29 Aug 2022
CEP IV Participations, S.a R.l. SICAR
(2)
Expand
4
Statement of changes in beneficial ownership
10 May 2023
3
Initial statement of beneficial ownership
29 Aug 2022
CEP IV Managing GP, L.P.
(2)
Expand
4
Statement of changes in beneficial ownership
10 May 2023
3
Initial statement of beneficial ownership
29 Aug 2022
CEP IV Managing GP Holdings, Ltd.
(2)
Expand
4
Statement of changes in beneficial ownership
10 May 2023
3
Initial statement of beneficial ownership
29 Aug 2022
Donlan Renee Martel
(2)
Expand
4
PRIMARY DOCUMENT
18 Aug
3
PRIMARY DOCUMENT
4 Jun
BERGES JAMES G
(1)
Expand
4
Statement of changes in beneficial ownership
10 May 2006
Carlyle Asia Partners IV, L.P.
(1)
Expand
4
Statement of changes in beneficial ownership
10 May 2023
CAP IV General Partner, L.P.
(1)
Expand
4
Statement of changes in beneficial ownership
10 May 2023
CAP IV, L.L.C.
(1)
Expand
4
Statement of changes in beneficial ownership
10 May 2023
≥5% Ownership
VANGUARD GROUP INC
(17)
Expand
SC 13G/A
Mks Inc
27 Mar
SC 13G/A
Mks Inc
31 Oct 2025
SC 13G/A
Mks Instruments Inc
13 Feb 2024
SC 13G/A
Mks Instruments Inc
9 Jun 2023
SC 13G/A
Mks Instruments Inc
9 Feb 2023
SC 13G/A
Mks Instruments Inc
10 Feb 2022
SC 13G/A
Mks Instruments Inc
10 Jun 2021
SC 13G/A
Mks Instruments Inc
10 Feb 2021
SC 13G/A
Mks Instruments Inc
12 Feb 2020
SC 13G/A
Mks Instruments Inc
11 Feb 2019
EMERSON ELECTRIC CO
(16)
Expand
SC 13D/A
Mks Instruments Inc
17 Jan 2007
SC 13D/A
Mks Instruments Inc
20 Dec 2006
SC 13D/A
Mks Instruments Inc
11 Dec 2006
SC 13D/A
Mks Instruments Inc
12 Oct 2006
SC 13D/A
Mks Instruments Inc
8 Sep 2006
SC 13D/A
Mks Instruments Inc
15 Aug 2006
SC 13D/A
Mks Instruments Inc
2 Aug 2006
SC 13D/A
Mks Instruments Inc
28 Jun 2006
SC 13D/A
Mks Instruments Inc
1 Jun 2006
SC 13D/A
Mks Instruments Inc
10 May 2006
BlackRock Inc.
(16)
Expand
SC 13G/A
Mks Instruments Inc
24 Jan 2024
SC 13G/A
Mks Instruments Inc
7 Feb 2023
SC 13G/A
Mks Instruments Inc
1 Feb 2022
SC 13G/A
Mks Instruments Inc
29 Jan 2021
SC 13G/A
Mks Instruments Inc
5 Feb 2020
SC 13G/A
Mks Instruments Inc
6 Feb 2019
SC 13G/A
Mks Instruments Inc
23 Jan 2018
SC 13G/A
Mks Instruments Inc
12 Jan 2017
SC 13G/A
Mks Instruments Inc
7 Oct 2016
SC 13G/A
Mks Instruments Inc
26 Jan 2016
DIMENSIONAL FUND ADVISORS LP
(14)
Expand
SC 13G/A
Mks Instruments Inc
9 Feb 2018
SC 13G/A
Mks Instruments Inc
9 Feb 2017
SC 13G/A
Mks Instruments Inc
9 Feb 2016
SC 13G/A
Mks Instruments Inc
5 Feb 2015
SC 13G/A
Mks Instruments Inc
10 Feb 2014
SC 13G/A
Mks Instruments Inc
11 Feb 2013
SC 13G/A
Mks Instruments Inc
14 Feb 2012
SC 13G/A
Mks Instruments Inc
11 Feb 2011
SC 13G/A
Mks Instruments Inc
8 Feb 2010
SC 13G/A
Mks Instruments Inc
9 Feb 2009
BERTUCCI JOHN R
(13)
Expand
SC 13G/A
Mks Instruments Inc
11 Feb 2011
SC 13G/A
Mks Instruments Inc
16 Feb 2010
SC 13G/A
Mks Instruments Inc
13 Feb 2009
SC 13G/A
Mks Instruments Inc
7 Feb 2008
SC 13G/A
Mks Instruments Inc
12 Feb 2007
SC 13G/A
Mks Instruments Inc
22 Dec 2006
SC 13G/A
Mks Instruments Inc
9 Feb 2006
SC 13G/A
Mks Instruments Inc
15 Feb 2005
SC 13G/A
Mks Instruments Inc
13 Feb 2004
SC 13G/A
Mks Instruments Inc
12 Feb 2003
ROYCE & ASSOCIATES LP
(12)
Expand
SC 13G/A
Mks Instruments Inc
1 Feb 2017
SC 13G/A
Mks Instruments Inc
19 Jan 2016
SC 13G/A
Mks Instruments Inc
13 Jan 2015
SC 13G/A
Mks Instruments Inc
5 Feb 2014
SC 13G/A
Mks Instruments Inc
13 Jan 2014
SC 13G/A
Mks Instruments Inc
14 Jan 2013
SC 13G/A
Mks Instruments Inc
18 Jan 2012
SC 13G/A
Mks Instruments Inc
14 Jan 2011
SC 13G/A
Mks Instruments Inc
25 Jan 2010
SC 13G/A
Mks Instruments Inc
26 Jan 2009
PRICE T ROWE ASSOCIATES INC /MD/
(10)
Expand
SC 13G/A
Mks Inc
17 Feb
SC 13G/A
Mks Inc
14 Aug 2025
SC 13G/A
Mks Instruments Inc
14 Feb 2025
SC 13G/A
Mks Instruments Inc
14 Nov 2024
SC 13G/A
Mks Instruments Inc
10 Sep 2024
SC 13G
Mks Instruments Inc
10 Jan 2024
SC 13G/A
Mks Instruments Inc
13 Feb 2007
SC 13G/A
Mks Instruments Inc
14 Feb 2006
SC 13G/A
Mks Instruments Inc
11 Feb 2005
SC 13G
Mks Instruments Inc
9 Feb 2004
WELLINGTON MANAGEMENT GROUP LLP
(9)
Expand
SC 13G/A
Mks Instruments Inc
6 Feb 2023
SC 13G/A
Mks Instruments Inc
4 Feb 2022
SC 13G/A
Mks Instruments Inc
4 Feb 2021
SC 13G
Mks Instruments Inc
30 Jan 2020
SC 13G/A
Mks Instruments Inc
12 Feb 2019
SC 13G/A
Mks Instruments Inc
8 Feb 2018
SC 13G/A
Mks Instruments Inc
10 Oct 2017
SC 13G/A
Mks Instruments Inc
10 Feb 2017
SC 13G
Mks Instruments Inc
9 Feb 2017
BERTUCCI CLAIRE R
(9)
Expand
SC 13G/A
Mks Instruments Inc
11 Feb 2011
SC 13G/A
Mks Instruments Inc
16 Feb 2010
SC 13G/A
Mks Instruments Inc
13 Feb 2009
SC 13G/A
Mks Instruments Inc
7 Feb 2008
SC 13G/A
Mks Instruments Inc
12 Feb 2007
SC 13G/A
Mks Instruments Inc
22 Dec 2006
SC 13G/A
Mks Instruments Inc
15 Feb 2005
SC 13G/A
Mks Instruments Inc
13 Feb 2004
SC 13G/A
Mks Instruments Inc
12 Feb 2003
KORNITZER CAPITAL MANAGEMENT INC /KS
(7)
Expand
SC 13G/A
Mks Instruments Inc
16 Jan 2014
SC 13G/A
Mks Instruments Inc
24 Jan 2013
SC 13G/A
Mks Instruments Inc
20 Jan 2012
SC 13G/A
Mks Instruments Inc
21 Jan 2011
SC 13G/A
Mks Instruments Inc
22 Jan 2010
SC 13G
Mks Instruments Inc
9 Jan 2009
SC 13G
Mks Instruments Inc
19 Feb 2008
Capital International Investors
(7)
Expand
SC 13G/A
Mks Instruments Inc
7 Feb 2025
SC 13G/A
Mks Instruments Inc
9 Feb 2024
SC 13G/A
Mks Instruments Inc
10 Feb 2023
SC 13G/A
Mks Instruments Inc
10 Feb 2023
SC 13G/A
Mks Instruments Inc
11 Feb 2022
SC 13G/A
Mks Instruments Inc
16 Feb 2021
SC 13G
Mks Instruments Inc
14 Feb 2020
FMR LLC
(6)
Expand
SC 13G/A
Mks Inc
6 May
SC 13G
Mks Instruments Inc
9 Feb 2024
SC 13G/A
Mks Instruments Inc
10 Oct 2007
SC 13G/A
Mks Instruments Inc
14 Feb 2007
SC 13G/A
Mks Instruments Inc
14 Feb 2006
SC 13G
Mks Instruments Inc
10 Jun 2005
VICTORY CAPITAL MANAGEMENT INC
(5)
Expand
SC 13G/A
Mks Inc
24 Jul
SC 13G/A
Mks Inc
8 Aug 2025
SC 13G
Mks Inc
8 Aug 2025
SC 13G/A
Mks Instruments Inc
7 Feb 2024
SC 13G
Mks Instruments Inc
2 Feb 2023
BARCLAYS GLOBAL INVESTORS NA /CA/
(3)
Expand
SC 13G
Mks Instruments Inc
5 Feb 2009
SC 13G
Mks Instruments Inc
5 Feb 2008
SC 13G
Mks Instruments Inc
23 Jan 2007
JPMORGAN CHASE & CO
(2)
Expand
SC 13G/A
Mks Inc
3 Sep
SC 13G
Mks Inc
16 Jul
TCW GROUP INC
(2)
Expand
SC 13G/A
Mks Instruments Inc
13 Feb 2006
SC 13G
Mks Instruments Inc
14 Feb 2005
SNYDER JENNIFER C
(2)
Expand
SC 13G/A
Mks Instruments Inc
13 Feb 2004
SC 13G
Mks Instruments Inc
12 Feb 2003
Carlyle Group Inc.
(2)
Expand
SC 13G/A
Mks Instruments Inc
12 Feb 2024
SC 13G
Mks Instruments Inc
29 Aug 2022
BlackRock, Inc.
(2)
Expand
SC 13G/A
Mks Inc
17 Oct 2025
SC 13G/A
Mks Instruments Inc
7 Nov 2024
KOPP INVESTMENT ADVISORS INC
(1)
Expand
SC 13G
Mks Instruments Inc
8 May 2001
Invesco Ltd.
(1)
Expand
SC 13G
Mks Inc
12 Feb
MKS INSTRUMENTS INC
(1)
Expand
SC 13D
Applied Science & Technology Inc
11 Oct 2000
VANGUARD CAPITAL MANAGEMENT LLC
(1)
Expand
SC 13G
Mks Inc
30 Apr
VANGUARD PORTFOLIO MANAGEMENT LLC
(1)
Expand
SC 13G
Mks Inc
29 Apr
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