MKS INC

By person

15 insiders · 49 transactions

32.5×

John T.C. Lee holds 32.5 times base salary in stock. $33.82M of shares against $1.04M in salary for 2025.

Salary from the company's own proxy. The shares are what John T.C. Lee last reported holding, valued at $250.96, the price Common Stock was last bought or sold at on the open market here, on 1 Sep 2026.

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Lee John Tseng-Chung

President & CEO

—

$13.88M (6)

−$13.88M

134,776

0.1993%

$33.82M

+19.3%

COLELLA GERALD G

Director

—

$11.74M (9) scheduled

−$11.74M

29,016

0.0429%

$7.28M

−60.7%

Henry David Philip

EVP, Global Str Mktg & GM, MSD

—

$3.89M (4)

−$3.89M

10,422

0.0154%

$2.62M

−39.0%

Mayampurath Ramakumar

EVP & CFO

—

$2.78M (1) scheduled

−$2.78M

<0.0001%

$285.84

—

Schreiner James Alan

EVP & COO

—

$2.71M (7)

−$2.71M

19,201

0.0284%

$4.82M

+0.4%

Burke Kathleen Flaherty

EVP, GC & Secretary

—

$2.46M (2)

−$2.46M

49,439

0.0731%

$12.41M

+13.7%

Taranto Eric Robert

EVP & GM, VSD

—

$2.28M (3)

−$2.28M

12,596

0.0186%

$3.16M

−7.0%

McCarthy Michelle M

SVP & Chief Accounting Officer

—

$1.13M (3) scheduled

−$1.13M

<0.0001%

$388.74

—

Moloney Jacqueline F

Director

—

$1.07M (5)

−$1.07M

8,775

0.0130%

$2.20M

−16.7%

CANNONE PETER III

Director

—

$732.16K (2)

−$732.16K

7,794

0.0115%

$1.96M

+9.3%

Donahue Joseph B

Director

—

$688.70K (1)

−$688.70K

10,033

0.0148%

$2.52M

+13.1%

Williams John Edward

EVP & GM, PSD

—

$655.50K (2)

−$655.50K

4,098

0.0061%

$1.03M

+31,422%

Mora Elizabeth

Director

—

$290.17K (4) scheduled

−$290.17K

18,845

0.0279%

$4.73M

+5.1%

Batra Raj

Director

—

16,227

0.0240%

$4.07M

+25.2%

JABRE WISSAM G

Director

—

5,270

0.0078%

$1.32M

—

Individual transactions

Insider

Date

Role

Action

Price

Amount

Mora Elizabeth

1 Sep 2026

Director

Sold on a plan

300

$250.96

$75.29K

Lee John Tseng-Chung

14 Aug 2026

President & CEO

Sold on a plan

10,000

$302.01

$3.02M

Williams John Edward

3 Aug 2026

EVP & GM, PSD

Sold on a plan

457

$288.31

$131.76K

Schreiner James Alan

12 Jun 2026

EVP & COO

Sell

217

$347.00

$75.30K

Schreiner James Alan

12 Jun 2026

EVP & COO

Sell

812

$346.41

$281.28K

Schreiner James Alan

12 Jun 2026

EVP & COO

Sell

2,471

$345.52

$853.79K

Schreiner James Alan

10 Jun 2026

EVP & COO

Sold on a plan

781

$317.42

$247.91K

McCarthy Michelle M

5 Jun 2026

SVP & Chief Accounting Officer

Sold on a plan

2,434

$315.23

$767.27K

Mora Elizabeth

1 Jun 2026

Director

Sold on a plan

300

$318.02

$95.41K

Henry David Philip

1 Jun 2026

EVP, Global Str Mktg & GM, MSD

Sell

6,000

$314.43

$1.89M

COLELLA GERALD G

27 May 2026

Director

Sold on a plan indirect

2,800

$338.58

$948.02K

COLELLA GERALD G

27 May 2026

Director

Sold on a plan indirect

213

$337.05

$71.79K

COLELLA GERALD G

27 May 2026

Director

Sold on a plan indirect

1,626

$336.54

$547.22K

COLELLA GERALD G

27 May 2026

Director

Sold on a plan indirect

1,811

$335.46

$607.51K

COLELLA GERALD G

27 May 2026

Director

Sold on a plan indirect

4,876

$332.04

$1.62M

COLELLA GERALD G

27 May 2026

Director

Sold on a plan indirect

8,210

$331.45

$2.72M

COLELLA GERALD G

27 May 2026

Director

Sold on a plan indirect

464

$330.38

$153.30K

Donahue Joseph B

27 May 2026

Director

Sell

2,100

$327.95

$688.70K

Henry David Philip

26 May 2026

EVP, Global Str Mktg & GM, MSD

Sold on a plan

2,500

$330.50

$826.25K

Lee John Tseng-Chung

22 May 2026

President & CEO

Sold on a plan

10,000

$315.48

$3.15M

Mayampurath Ramakumar

22 May 2026

EVP & CFO

Sold on a plan

8,810

$315.48

$2.78M

CANNONE PETER III

18 May 2026

Director

Sell

1,350

$303.40

$409.59K

Moloney Jacqueline F

14 May 2026

Director

Sell

1,000

$312.20

$312.20K

Moloney Jacqueline F

13 May 2026

Director

Sell

1,400

$318.99

$446.59K

Burke Kathleen Flaherty

11 May 2026

EVP, GC & Secretary

Sell

4,355

$319.94

$1.39M

Taranto Eric Robert

11 May 2026

EVP & GM, VSD

Sell

2,849

$319.93

$911.33K

Moloney Jacqueline F

12 Mar 2026

Director

Sell

340

$213.77

$72.71K

Taranto Eric Robert

6 Mar 2026

EVP & GM, VSD

Sell

4,568

$220.52

$1.01M

Mora Elizabeth

2 Mar 2026

Director

Sold on a plan

300

$239.44

$71.83K

COLELLA GERALD G

24 Feb 2026

Director

Sell indirect

10,000

$253.97

$2.54M

Schreiner James Alan

24 Feb 2026

EVP & COO

Sell

4,100

$255.00

$1.05M

Lee John Tseng-Chung

20 Feb 2026

President & CEO

Sell

1,890

$259.70

$490.84K

Lee John Tseng-Chung

20 Feb 2026

President & CEO

Sell

1,988

$257.81

$512.52K

Lee John Tseng-Chung

20 Feb 2026

President & CEO

Sell

12,812

$256.93

$3.29M

Lee John Tseng-Chung

20 Feb 2026

President & CEO

Sell

13,310

$256.05

$3.41M

Burke Kathleen Flaherty

20 Feb 2026

EVP, GC & Secretary

Sell

4,254

$250.00

$1.06M

Williams John Edward

20 Feb 2026

EVP & GM, PSD

Sell

2,043

$256.41

$523.74K

Moloney Jacqueline F

20 Feb 2026

Director

Sell

829

$247.55

$205.22K

McCarthy Michelle M

20 Feb 2026

VP & Chief Accounting Officer

Sell

816

$250.35

$204.28K

McCarthy Michelle M

20 Feb 2026

VP & Chief Accounting Officer

Sell

650

$249.57

$162.22K

Henry David Philip

20 Feb 2026

EVP, Global Str Mktg & GM, MSD

Sell

2,000

$261.56

$523.12K

Taranto Eric Robert

20 Feb 2026

EVP & GM, VSD

Sell

1,453

$247.55

$359.62K

CANNONE PETER III

20 Feb 2026

Director

Sell

1,250

$258.06

$322.57K

COLELLA GERALD G

20 Feb 2026

Director

Sell indirect

10,000

$252.90

$2.53M

Mora Elizabeth

2 Dec 2025

Director

Sold on a plan

300

$158.81

$47.64K

Schreiner James Alan

22 Oct 2025

EVP & COO

Sold on a plan

711

$138.68

$98.60K

Moloney Jacqueline F

1 Oct 2025

Director

Sold on a plan

300

$122.14

$36.64K

Henry David Philip

18 Sep 2025

EVP, Global Str Mktg & GM, MSD

Sold on a plan

5,000

$130.00

$650.00K

Schreiner James Alan

18 Sep 2025

EVP & COO

Sold on a plan

838

$124.00

$103.91K

By person

Individual transactions

What was left out