MKS Inc.
Organization details
- Legal name
- MKS Inc.
- Former names
- MKS Instruments Inc
- Ownership
- Public
- Status
- Active
- Sector (GICS)
- Information Technology
- SIC code
- 3823 — Industrial Instruments For Measurement, Display, and Control
- Jurisdiction of incorporation
- Massachusetts
- Headquarters city
- Andover
- Headquarters state / province
- Massachusetts
- Headquarters country
- United States
- Fiscal year end
- December
- Ticker symbol
- MKSI
- Primary stock exchange
- Nasdaq
Identifiers
- SEC CIK
- 0001049502
- EIN
- 04-2277512
Board of directors
- Since 2023
-
Gerard G. Colella · DirectorSince 2023
-
Jacqueline F. Moloney · DirectorSince 2023
-
John Tseng-Chung Lee · Director · President & CEOSince 2023
-
Joseph B. Donahue · DirectorSince 2023
-
Michelle M. Warner · DirectorSince 2023
-
Peter Cannone III · DirectorSince 2023
-
Raj Batra · DirectorSince 2023
-
Wissam G. Jabre · DirectorSince 2024
Chief executives
Director election results
Annual meeting of May 11, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
94.1%
-
99.2%
-
99.2%
Board connections
3 of this board's directors also sit on 6 other boards. 2 are in the same sector.
-
Cognex Corporation Same sectorvia John Tseng-Chung Lee
- via Gerard G. Colella
- via Elizabeth Mora
- via Elizabeth Mora
- via Elizabeth Mora
-
Smartbird Inc. Same sectorvia Elizabeth Mora
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $0
- 0 purchases by 0 insiders
- Sold, last 12 months
- $43,406,067
- 45 sales by 13 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Oct 30, 2026 | John Tseng-Chung Lee Director, Officer (President & CEO) | Option exercise | +1,479 | — | — |
| Oct 30, 2026 | John Tseng-Chung Lee Director, Officer (President & CEO) | Option exercise | +679 | — | — |
| Oct 30, 2026 | John Tseng-Chung Lee Director, Officer (President & CEO) | Shares withheld for tax | −2,157 | $202.04 | $435,890 |
| Sep 1, 2026 | Elizabeth Mora Director | Open-market sale | −300 | $250.96 | $75,288 |
| Aug 14, 2026 | John Tseng-Chung Lee Director, Officer (President & CEO) | Open-market sale | −10,000 | $302.01 | $3,020,100 |
| Aug 3, 2026 | Williams John Edward Officer (EVP & GM, PSD) | Open-market sale | −457 | $288.31 | $131,758 |
| Jun 12, 2026 | Schreiner James Alan Officer (EVP & COO) | Open-market sale | −2,471 | $345.52 | $853,780 |
| Jun 12, 2026 | Schreiner James Alan Officer (EVP & COO) | Open-market sale | −812 | $346.41 | $281,285 |
| Jun 12, 2026 | Schreiner James Alan Officer (EVP & COO) | Open-market sale | −217 | $347.00 | $75,299 |
| Jun 10, 2026 | Schreiner James Alan Officer (EVP & COO) | Open-market sale | −781 | $317.42 | $247,905 |
| Jun 5, 2026 | McCarthy Michelle M Officer (SVP & Chief Accounting Officer) | Open-market sale | −2,434 | $315.23 | $767,270 |
| Jun 1, 2026 | Henry David Philip Officer (EVP, Global Str Mktg & GM, MSD) | Open-market sale | −6,000 | $314.43 | $1,886,580 |
| Jun 1, 2026 | Elizabeth Mora Director | Open-market sale | −300 | $318.02 | $95,406 |
| May 27, 2026 | Joseph B. Donahue Director | Open-market sale | −2,100 | $327.95 | $688,695 |
| May 27, 2026 | Gerard G. Colella Director | Open-market sale | −464 | $330.38 | $153,296 |
Peers
Compare boardsOrganizations in the same sector, closest in location and size first.
Questions about MKS Inc.
Who is the CEO of MKS Inc.?
John Tseng-Chung Lee is MKS Inc.'s President & CEO.
How many directors are on MKS Inc.'s board?
MKS Inc.'s board has 9 directors: Elizabeth Mora, Gerard G. Colella, Jacqueline F. Moloney, John Tseng-Chung Lee, Joseph B. Donahue, Michelle M. Warner, Peter Cannone III, Raj Batra and Wissam G. Jabre.
Are MKS Inc. insiders buying or selling shares?
Over the last 12 months, MKS Inc. insiders made no open-market purchases and sold $43.4 million of shares in 45 sales on the open market, as reported to the SEC on Forms 4 and 5.
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