Company Description
MKS Inc. provides foundational technology solutions to semiconductor manufacturing, electronics and packaging, and specialty industrial applications in the United States, China, South Korea, Japan, Taiwan, Singapore, and internationally.
It operates through Vacuum Solutions Division (VSD), Photonics Solutions Division (PSD), and Material Solutions Division (MSD) segments.
The VSD segment provides foundational technology solutions, including pressure measurement and control, flow measurement and control, gas and vapor delivery, gas composition analysis, electronic control technology, reactive gas generation and delivery, power generation and delivery, and fiber optic temperature and position sensing.
The PSD segment offers range of solutions, which include lasers, beam measurement and profiling, precision motion control, vibration isolation systems, photonics instruments, temperature sensing, opto-mechanical components, optical elements, systems for flexible PCB laser processing, and laser-based systems, as well as high density interconnect PCB and package manufacturing.
The MSD segment develops, process, and manufactures technologies comprising advanced surface modification, electroless and electrolytic plating, and surface finishing for chemistry, equipment, and services markets, as well as high-technology applications.
In addition, the company sells its products and services through direct sales, network of independent distributors, and sales representatives, as well as websites, including product catalogs.
MKS Inc. was formerly known as MKS Instruments, Inc. and changed its name to MKS Inc. in May 2025.
The company was incorporated in 1961 and is headquartered in Andover, Massachusetts.
| Country | United States |
| Founded | 1961 |
| IPO Date | Mar 26, 1999 |
| Industry | Scientific & Technical Instruments |
| Sector | Technology |
| Employees | 10,200 |
| CEO | John T. Lee |
Contact Details
Address: 2 Tech Drive, Suite 201 Andover, Massachusetts 01810 United States | |
| Phone | 978 645 5500 |
| Website | mks.com |
Stock Details
| Ticker Symbol | MKSI |
| Exchange | NASDAQ |
| Stock Type | Common Stock |
| Fiscal Year | January - December |
| Reporting Currency | USD |
| CIK Code | 0001049502 |
| CUSIP Number | 55306N104 |
| ISIN Number | US55306N1046 |
| Employer ID | 04-2277512 |
| SIC Code | 3823 |
Key Executives
| Name | Position |
|---|---|
| Dr. John T. C. Lee Ph.D. | President, Chief Executive Officer and Director |
| Ramakumar Mayampurath | Executive Vice President and Chief Financial Officer |
| David Philip Henry | Executive Vice President of Operations and Corporate Marketing |
| Kathleen F. Burke Esq. | Executive Vice President, General Counsel and Secretary |
| James Alan Schreiner | Executive Vice President and Chief Operating Officer of Materials Solutions Division |
| Michelle M. McCarthy | Vice President and Chief Accounting Officer |
| Madhuri A. Andrews | Executive Vice President and Chief Information Officer |
| Dr. Paretosh Misra C.F.A., Ph.D. | Vice President of Investor Relations |
| Sally Ann Bouley | Executive Vice President and Chief Human Resources Officer |
| Eric Robert Taranto | Executive Vice President and GM of Vacuum Solutions Division |
Latest SEC Filings
| Date | Type | Title |
|---|---|---|
| Jul 7, 2025 | 144 | Filing |
| Jul 3, 2025 | 144 | Filing |
| Jun 2, 2025 | 144 | Filing |
| May 29, 2025 | SD | Form - SD |
| May 15, 2025 | 8-K | Current Report |
| May 8, 2025 | 10-Q | Quarterly Report |
| May 7, 2025 | 8-K | Current Report |
| Apr 1, 2025 | ARS | Filing |
| Apr 1, 2025 | DEFA14A | Additional definitive proxy soliciting materials and Rule 14(a)(12) material |
| Apr 1, 2025 | DEF 14A | Other definitive proxy statements |