InsiderClue
Stocks · Technology · Industrial Instruments For Measurement, Display, and Control

MKS INC

MKSI Clue Score38
United States Fiscal year ends December CIK 0001049502 Results filed 4 Nov 2026
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What the insiders did Net selling

Individual transactions

198
Insider
Date
Role
Action
Shares
Price
Amount
Elizabeth Mora
1 Sep 2026
Director
Sold on a plan
300
$250.96
$75.29K
John Tseng-Chung Lee
14 Aug 2026
President & CEO
Sold on a plan
10,000
$302.01
$3.02M
John Edward Williams
3 Aug 2026
EVP & Gm, Psd
Sold on a plan
457
$288.31
$131.76K
James Alan Schreiner
12 Jun 2026
EVP & COO
Sell
217
$347.00
$75.30K
James Alan Schreiner
12 Jun 2026
EVP & COO
Sell
812
$346.41
$281.28K
James Alan Schreiner
12 Jun 2026
EVP & COO
Sell
2,471
$345.52
$853.79K
James Alan Schreiner
10 Jun 2026
EVP & COO
Sold on a plan
781
$317.42
$247.91K
Michelle M McCarthy
5 Jun 2026
SVP & Chief Accounting Officer
Sold on a plan
2,434
$315.23
$767.27K
Elizabeth Mora
1 Jun 2026
Director
Sold on a plan
300
$318.02
$95.41K
David Philip Henry
1 Jun 2026
EVP, Global Str Mktg & GM, MSD
Sell
6,000
$314.43
$1.89M
Gerald G Colella
27 May 2026
Director
Sold on a plan indirect
2,800
$338.58
$948.02K
Gerald G Colella
27 May 2026
Director
Sold on a plan indirect
213
$337.05
$71.79K
Gerald G Colella
27 May 2026
Director
Sold on a plan indirect
1,626
$336.54
$547.22K
Gerald G Colella
27 May 2026
Director
Sold on a plan indirect
1,811
$335.46
$607.51K
Gerald G Colella
27 May 2026
Director
Sold on a plan indirect
4,876
$332.04
$1.62M
Gerald G Colella
27 May 2026
Director
Sold on a plan indirect
8,210
$331.45
$2.72M
Gerald G Colella
27 May 2026
Director
Sold on a plan indirect
464
$330.38
$153.30K
Joseph B Donahue
27 May 2026
Director
Sell
2,100
$327.95
$688.70K
David Philip Henry
26 May 2026
EVP, Global Str Mktg & GM, MSD
Sold on a plan
2,500
$330.50
$826.25K
John Tseng-Chung Lee
22 May 2026
President & CEO
Sold on a plan
10,000
$315.48
$3.15M
Ramakumar Mayampurath
22 May 2026
EVP & CFO
Sold on a plan
8,810
$315.48
$2.78M
Peter Cannone III
18 May 2026
Director
Sell
1,350
$303.40
$409.59K
Jacqueline F Moloney
14 May 2026
Director
Sell
1,000
$312.20
$312.20K
Jacqueline F Moloney
13 May 2026
Director
Sell
1,400
$318.99
$446.59K
Kathleen Flaherty Burke
11 May 2026
EVP, GC & Secretary
Sell
4,355
$319.94
$1.39M
Eric Robert Taranto
11 May 2026
EVP & Gm, Vsd
Sell
2,849
$319.93
$911.33K
Jacqueline F Moloney
12 Mar 2026
Director
Sell
340
$213.77
$72.71K
Eric Robert Taranto
6 Mar 2026
EVP & Gm, Vsd
Sell
4,568
$220.52
$1.01M
Elizabeth Mora
2 Mar 2026
Director
Sold on a plan
300
$239.44
$71.83K
Gerald G Colella
24 Feb 2026
Director
Sell indirect
10,000
$253.97
$2.54M
James Alan Schreiner
24 Feb 2026
EVP & COO
Sell
4,100
$255.00
$1.05M
John Tseng-Chung Lee
20 Feb 2026
President & CEO
Sell
1,890
$259.70
$490.84K
John Tseng-Chung Lee
20 Feb 2026
President & CEO
Sell
1,988
$257.81
$512.52K
John Tseng-Chung Lee
20 Feb 2026
President & CEO
Sell
12,812
$256.93
$3.29M
John Tseng-Chung Lee
20 Feb 2026
President & CEO
Sell
13,310
$256.05
$3.41M
Kathleen Flaherty Burke
20 Feb 2026
EVP, GC & Secretary
Sell
4,254
$250.00
$1.06M
John Edward Williams
20 Feb 2026
EVP & Gm, Psd
Sell
2,043
$256.41
$523.74K
Jacqueline F Moloney
20 Feb 2026
Director
Sell
829
$247.55
$205.22K
Michelle M McCarthy
20 Feb 2026
VP & Chief Accounting Officer
Sell
816
$250.35
$204.28K
Michelle M McCarthy
20 Feb 2026
VP & Chief Accounting Officer
Sell
650
$249.57
$162.22K
David Philip Henry
20 Feb 2026
EVP, Global Str Mktg & GM, MSD
Sell
2,000
$261.56
$523.12K
Eric Robert Taranto
20 Feb 2026
EVP & Gm, Vsd
Sell
1,453
$247.55
$359.62K
Peter Cannone III
20 Feb 2026
Director
Sell
1,250
$258.06
$322.57K
Gerald G Colella
20 Feb 2026
Director
Sell indirect
10,000
$252.90
$2.53M
Elizabeth Mora
2 Dec 2025
Director
Sold on a plan
300
$158.81
$47.64K
James Alan Schreiner
22 Oct 2025
EVP & COO
Sold on a plan
711
$138.68
$98.60K
Jacqueline F Moloney
1 Oct 2025
Director
Sold on a plan
300
$122.14
$36.64K
David Philip Henry
18 Sep 2025
EVP, Global Str Mktg & GM, MSD
Sold on a plan
5,000
$130.00
$650.00K
James Alan Schreiner
18 Sep 2025
EVP & COO
Sold on a plan
838
$124.00
$103.91K
Elizabeth Mora
2 Sep 2025
Director
Sold on a plan
300
$99.85
$29.96K
Jacqueline F Moloney
1 Aug 2025
Director
Sold on a plan
300
$92.10
$27.63K
James Alan Schreiner
7 Jul 2025
EVP & COO, Msd
Sold on a plan
957
$102.44
$98.04K
David Philip Henry
3 Jul 2025
EVP, Operations & Corp Mktg
Sold on a plan
2,000
$105.00
$210.00K
Elizabeth Mora
2 Jun 2025
Director
Sold on a plan
300
$81.78
$24.53K
Jacqueline F Moloney
3 Mar 2025
Director
Sold on a plan
300
$92.46
$27.74K
Elizabeth Mora
3 Mar 2025
Director
Sold on a plan
275
$92.46
$25.43K
Gerald G Colella
18 Feb 2025
Director
Sell indirect
8,000
$104.53
$836.22K
Jacqueline F Moloney
10 Dec 2024
Director
Sold on a plan
300
$114.80
$34.44K
Elizabeth Mora
2 Dec 2024
Director
Sold on a plan
275
$113.41
$31.19K
Jacqueline F Moloney
1 Oct 2024
Director
Sold on a plan
250
$108.90
$27.23K
Elizabeth Mora
3 Sep 2024
Director
Sold on a plan
275
$115.97
$31.89K
John Edward Williams
16 Aug 2024
EVP & Gm, Psd
Sell
1,800
$118.71
$213.68K
Jacqueline F Moloney
1 Aug 2024
Director
Sold on a plan
250
$123.46
$30.87K
Elizabeth Mora
3 Jun 2024
Director
Sold on a plan
275
$129.41
$35.59K
Elizabeth Mora
1 Apr 2024
Director
Sold on a plan
250
$133.00
$33.25K
Kathleen Flaherty Burke
1 Mar 2024
EVP, GC & Secretary
Sell
7,411
$122.89
$910.74K
Jacqueline F Moloney
1 Mar 2024
Director
Sold on a plan
250
$122.89
$30.72K
Seth H Bagshaw
22 Feb 2024
EVP, CFO & Treasurer
Sell
1,000
$124.56
$124.56K
Seth H Bagshaw
22 Feb 2024
EVP, CFO & Treasurer
Sell
11,612
$124.02
$1.44M
Seth H Bagshaw
22 Feb 2024
EVP, CFO & Treasurer
Sell
20,253
$122.79
$2.49M
Jacqueline F Moloney
16 Feb 2024
Director
Sell
1,917
$124.10
$237.93K
Gerald G Colella
9 Feb 2024
Director
Sold on a plan indirect
10,000
$120.00
$1.20M
Gerald G Colella
22 Jan 2024
Director
Sold on a plan indirect
10,000
$110.00
$1.10M
Elizabeth Mora
2 Jan 2024
Director
Sold on a plan
250
$100.90
$25.23K
Jacqueline F Moloney
1 Dec 2023
Director
Sold on a plan
250
$82.23
$20.56K
David Philip Henry
7 Nov 2023
EVP, Operations & Corp Mktg
Buy
2,500
$68.34
$170.86K
Elizabeth Mora
2 Oct 2023
Director
Sold on a plan
250
$87.15
$21.79K
Seth H Bagshaw
6 Sep 2023
EVP, CFO & Treasurer
Sell
7,073
$97.66
$690.77K
Seth H Bagshaw
6 Sep 2023
EVP, CFO & Treasurer
Sell
17,927
$97.16
$1.74M
Gerald G Colella
31 Aug 2023
Director
Sold on a plan indirect
10,000
$100.01
$1.00M
Jacqueline F Moloney
28 Aug 2023
Director
Sell
250
$95.26
$23.81K
Kathleen Flaherty Burke
7 Aug 2023
EVP, GC & Secretary
Sell
5,377
$101.40
$545.24K
Kathleen Flaherty Burke
7 Aug 2023
EVP, GC & Secretary
Sell
6,186
$101.08
$625.30K
Elizabeth Mora
3 Jul 2023
Director
Sold on a plan
250
$108.49
$27.12K
Jacqueline F Moloney
1 Jun 2023
Director
Sold on a plan
225
$97.16
$21.86K
Elizabeth Mora
1 Jun 2023
Director
Sold on a plan
200
$97.16
$19.43K
Carlyle Group Inc.
8 May 2023
10% owner
Sell indirect
2,000,000
$86.13
$172.25M
Carlyle Partners VI Cayman Holdings, L.P.
8 May 2023
10% owner
Sell indirect
2,000,000
$86.13
$172.25M
Jacqueline F Moloney
15 Mar 2023
Director
Sell
225
$86.67
$19.50K
Elizabeth Mora
15 Mar 2023
Director
Sell
200
$86.67
$17.33K
Jacqueline F Moloney
1 Dec 2022
Director
Sell
225
$83.86
$18.87K
Elizabeth Mora
1 Dec 2022
Director
Sell
200
$83.86
$16.77K
Jacqueline F Moloney
3 Oct 2022
Director
Sell
225
$84.14
$18.93K
Elizabeth Mora
1 Sep 2022
Director
Sell
200
$96.72
$19.34K
Gerald G Colella
1 Aug 2022
Director
Buy indirect
1,000
$117.51
$117.51K
Peter Cannone III
1 Aug 2022
Director
Buy
250
$120.06
$30.01K
Elizabeth Mora
1 Mar 2022
Director
Sell
300
$149.99
$45.00K
Elizabeth Mora
1 Dec 2021
Director
Sell
300
$155.91
$46.77K
Gerald G Colella
4 Nov 2021
Director
Sell indirect
3,000
$155.16
$465.49K
Elizabeth Mora
1 Sep 2021
Director
Sell
300
$148.10
$44.43K
Elizabeth Mora
1 Jun 2021
Director
Sell
300
$190.00
$57.00K
David Philip Henry
20 May 2021
SVP, Corp Mkt, PMO & Glob Svc
Sell
284
$186.70
$53.02K
Mark Milton Gitin
30 Apr 2021
SVP & GM, L&M Division
Sell
1,301
$181.79
$236.51K
Eric Robert Taranto
29 Apr 2021
SVP & GM, V&A Division
Sell
1,788
$185.29
$331.30K
Seth H Bagshaw
15 Apr 2021
Sr. VP, CFO & Treasurer
Sell
200
$188.40
$37.68K
Seth H Bagshaw
15 Apr 2021
Sr. VP, CFO & Treasurer
Sell
4,955
$187.78
$930.45K
Seth H Bagshaw
15 Apr 2021
Sr. VP, CFO & Treasurer
Sell
1,741
$186.65
$324.96K
Seth H Bagshaw
15 Apr 2021
Sr. VP, CFO & Treasurer
Sell
704
$185.39
$130.51K
Seth H Bagshaw
15 Apr 2021
Sr. VP, CFO & Treasurer
Sell
1,400
$184.36
$258.11K
Elizabeth Mora
1 Mar 2021
Director
Sell
450
$168.00
$75.60K
Elizabeth Mora
1 Dec 2020
Director
Sell
450
$139.54
$62.79K
Elizabeth Mora
1 Sep 2020
Director
Sell
450
$120.28
$54.13K
Gerald G Colella
3 Aug 2020
Director
Sell indirect
6,000
$128.37
$770.24K
Seth H Bagshaw
23 Jul 2020
Sr. VP, CFO & Treasurer
Sell
1,440
$126.07
$181.54K
Seth H Bagshaw
23 Jul 2020
Sr. VP, CFO & Treasurer
Sell
1,493
$125.09
$186.76K
Seth H Bagshaw
23 Jul 2020
Sr. VP, CFO & Treasurer
Sell
2,062
$123.57
$254.80K
Seth H Bagshaw
22 Jul 2020
Sr. VP, CFO & Treasurer
Sell
5
$123.00
$615.00
Seth H Bagshaw
6 Jul 2020
Sr. VP, CFO & Treasurer
Sell
5,000
$116.84
$584.20K
Elizabeth Mora
1 Jun 2020
Director
Sell
450
$105.09
$47.29K
Gerald G Colella
19 May 2020
Director
Sell indirect
5,000
$100.17
$500.86K
Elizabeth Mora
5 May 2020
Director
Sell
1,005
$96.77
$97.25K
Gregory R Beecher
5 May 2020
Director
Sell
18,143
$95.95
$1.74M
Gerald G Colella
1 May 2020
Director
Sell indirect
5,000
$96.55
$482.75K
Jacqueline F Moloney
16 Mar 2020
Director
Sell
107
$81.47
$8.72K
Jacqueline F Moloney
16 Mar 2020
Director
Sell
200
$81.44
$16.29K
Elizabeth Mora
2 Mar 2020
Director
Sell
400
$100.68
$40.27K
Gerald G Colella
4 Feb 2020
Director
Sell indirect
7,000
$113.05
$791.35K
Elizabeth Mora
2 Dec 2019
Director
Sell
400
$106.92
$42.77K
Kathleen Flaherty Burke
30 Oct 2019
Sr. VP, GC & Secretary
Sell
10,384
$110.55
$1.15M
Seth H Bagshaw
29 Oct 2019
Sr. VP, CFO & Treasurer
Sell
18,000
$112.08
$2.02M
Gerald G Colella
28 Oct 2019
CEO, Director
Sell indirect
5,000
$111.03
$555.15K
Elizabeth Mora
3 Sep 2019
Director
Sell
400
$77.00
$30.80K
Jacqueline F Moloney
2 Aug 2019
Director
Sell
603
$81.98
$49.43K
Gerald G Colella
11 Jun 2019
CEO, Director
Sell indirect
5,000
$75.82
$379.09K
Elizabeth Mora
3 Jun 2019
Director
Sell
400
$71.93
$28.77K
Richard S Chute
8 May 2019
Director
Sell
1,499
$86.03
$128.96K
Jacqueline F Moloney
8 May 2019
Director
Sell
256
$85.86
$21.98K
Elizabeth Mora
1 Mar 2019
Director
Sell
375
$83.90
$31.46K
Elizabeth Mora
3 Dec 2018
Director
Sell
375
$79.90
$29.96K
Elizabeth Mora
4 Sep 2018
Director
Sell
375
$92.50
$34.69K
Peter Hanley
7 Aug 2018
Director
Sell
1,240
$94.39
$117.04K
Jacqueline F Moloney
11 Jun 2018
Director
Sell
750
$100.20
$75.15K
Peter Hanley
6 Jun 2018
Director
Sell
500
$117.99
$59.00K
John R Abrams
6 Jun 2018
Sr. VP, Global Sales
Sell
133
$117.77
$15.66K
Elizabeth Mora
1 Jun 2018
Director
Sell
375
$113.40
$42.53K
Elizabeth Mora
16 May 2018
Director
Sell
516
$116.42
$60.07K
Peter Hanley
11 May 2018
Director
Sell
250
$113.70
$28.43K
Richard S Chute
9 May 2018
Director
Sell
1,988
$110.75
$220.17K
Brian Charles Quirk
7 May 2018
Sr. VP, Global Operations
Sell
2,000
$109.40
$218.80K
Gerald G Colella
1 May 2018
CEO, President, Director
Sell indirect
10,000
$101.92
$1.02M
Peter Hanley
14 Mar 2018
Director
Sell
430
$123.40
$53.06K
Elizabeth Mora
1 Mar 2018
Director
Sell
300
$111.10
$33.33K
John R Abrams
21 Feb 2018
Sr. VP, Global Sales & Service
Sell
9,831
$114.94
$1.13M
Peter Hanley
20 Feb 2018
Director
Sell
350
$115.10
$40.29K
Seth H Bagshaw
20 Feb 2018
Sr. VP, CFO & Treasurer
Sell
5,000
$115.21
$576.07K
John Tseng-Chung Lee
20 Feb 2018
Sr. VP & COO
Sell
1,600
$115.91
$185.46K
John Tseng-Chung Lee
20 Feb 2018
Sr. VP & COO
Sell
11,832
$115.31
$1.36M
Robert J Phillippy
15 Feb 2018
Director
Sell indirect
10,000
$109.15
$1.09M
Peter Hanley
14 Feb 2018
Director
Sell
100
$107.06
$10.71K
Brian Charles Quirk
5 Feb 2018
Sr. VP, Global Operations
Sell
2,000
$105.10
$210.20K
Gerald G Colella
12 Jan 2018
CEO, President, Director
Sell indirect
10,000
$96.30
$963.02K
Seth H Bagshaw
8 Jan 2018
Sr. VP, CFO & Treasurer
Sell
10,000
$102.07
$1.02M
Dennis L Werth
15 Dec 2017
Sr. VP, Business Units
Sold after exercise
2,022
$97.90
$197.95K
Gerald G Colella
14 Dec 2017
CEO, President, Director
Sell indirect
5,000
$95.26
$476.30K
Dennis L Werth
14 Dec 2017
Sr. VP, Business Units
Sold after exercise
1,617
$95.62
$154.61K
Peter Hanley
5 Dec 2017
Director
Sell
200
$92.58
$18.52K
Elizabeth Mora
1 Dec 2017
Director
Sell
300
$94.10
$28.23K
John Tseng-Chung Lee
13 Nov 2017
Sr. VP & COO
Sell
2,113
$104.02
$219.78K
Brian Charles Quirk
6 Nov 2017
Sr. VP, Global Operations
Sell
2,000
$107.90
$215.80K
Seth H Bagshaw
13 Sep 2017
Sr. VP, CFO & Treasurer
Sell
7,500
$85.80
$643.49K
Peter Hanley
6 Sep 2017
Director
Sell
300
$83.15
$24.95K
Elizabeth Mora
1 Sep 2017
Director
Sell
300
$82.80
$24.84K
Brian Charles Quirk
8 Aug 2017
Sr. VP, Global Operations
Sell
2,000
$79.30
$158.60K
Peter Hanley
28 Jul 2017
Director
Sell
1,000
$83.22
$83.22K
Peter Hanley
15 Jun 2017
Director
Sell
250
$72.95
$18.24K
Elizabeth Mora
1 Jun 2017
Director
Sell
300
$81.90
$24.57K
Gerald G Colella
19 May 2017
CEO, President, Director
Sell indirect
2,500
$79.30
$198.26K
Peter Hanley
15 May 2017
Director
Sell
1,200
$81.51
$97.81K
Brian Charles Quirk
10 May 2017
Sr. VP, Global Operations
Sell
2,000
$80.00
$160.00K
Richard S Chute
10 May 2017
Director
Sell
3,000
$80.00
$240.00K
Gregory R Beecher
4 May 2017
Director
Sell
3,960
$80.87
$320.25K
Elizabeth Mora
3 May 2017
Director
Sell
200
$80.00
$16.00K
Gregory R Beecher
1 May 2017
Director
Sell
18,400
$78.58
$1.45M
Gerald G Colella
3 Apr 2017
CEO, President, Director
Sell
10,000
$68.61
$686.06K
Brian Charles Quirk
3 Apr 2017
Sr. VP, Global Operations
Sell
1,000
$68.75
$68.75K
Seth H Bagshaw
15 Mar 2017
Vice President, CFO, Treasurer
Sell
5,000
$68.27
$341.35K
John R Abrams
14 Mar 2017
Sr. VP, Global Sales & Service
Sell
12,066
$67.09
$809.54K
Robert R Anderson
13 Mar 2017
Director
Sell indirect
2,500
$67.01
$167.52K
Seth H Bagshaw
27 Feb 2017
Vice President, CFO, Treasurer
Sell
7,500
$67.00
$502.50K
John Tseng-Chung Lee
22 Feb 2017
Sr. VP & COO
Sell
14,734
$67.99
$1.00M
Brian Charles Quirk
1 Feb 2017
Sr. VP, Global Operations
Sell
1,000
$66.60
$66.60K
Elizabeth Mora
1 Feb 2017
Director
Sell
200
$66.60
$13.32K
John R Abrams
2 Dec 2016
Sr. VP, Global Sales & Service
Sell
302
$54.05
$16.32K
Brian Charles Quirk
1 Dec 2016
Sr. VP, Global Operations
Sell
1,000
$57.40
$57.40K
Robert R Anderson
22 Nov 2016
Director
Sell
2,500
$56.76
$141.90K
Dennis L Werth
17 Nov 2016
Sr. VP, Business Units
Sold after exercise
2,333
$56.41
$131.60K
Gerald G Colella
16 Nov 2016
CEO, President, Director
Sell
2,500
$55.86
$139.65K
Seth H Bagshaw
16 Nov 2016
Vice President, CFO, Treasurer
Sell
10,000
$55.45
$554.50K

What was left out

Form 4 filings counted 444
Amendments (4/A) skipped 1
Filings about a different issuer 0
Unreadable filings 0
Joint filings 2
Sales on a Rule 10b5-1 plan 46
Sales straight out of an exercise 3
Sales at will 146
Transactions with no price 0
Shares from compensation/vesting 2,117,677
Sales filed before the plan box existed 105
History held since 3 Oct 2006