James A. Schreiner
COO
Mks Inc (MKSI)Equibles does not estimate personal net worth.
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James A. Schreiner is recorded as COO at Mks Inc (MKSI). The newest filing on record that lists James A. Schreiner as COO at Mks Inc (MKSI) is dated March 31, 2026. Mks Inc reported in an 8-K filed May 15, 2025 that James A. Schreiner was appointed Executive Vice President and Chief Operating Officer, effective August 1, 2025. Mks Inc reported in an 8-K filed August 17, 2022 that James A. Schreiner was appointed Senior Vice President and Chief Operating Officer, Materials Solutions Division, effective August 17, 2022. The proxy statement of Mks Inc reports total compensation of $2,870,835 for James A. Schreiner in fiscal 2025, including a base salary of $541,447. Disclosed compensation is on record for 6 fiscal years. Mks Inc is classified in the Scientific & Technical Instruments industry within the Technology sector. Other leadership on record at Mks Inc includes John T. C. Lee (CEO and Board Member), Ramakumar Mayampurath (CFO), Michelle M. McCarthy (Chief Accounting Officer) and 5 others.
“On May 12, 2025, the Board of Directors (the "Board") of MKS Instruments, Inc. (the "Company") appointed James A. Schreiner, age 63, who currently serves as Executive Vice President and Chief Operating Officer, Materials Solutions Division, to serve as Executive Vice President and Chief Operating Officer, effective as of August 1, 2025.”
“On the Effective Date, in connection with the completion of the Acquisition and pursuant to the employment agreement, dated September 16, 2019, by and between the Company and James A. Schreiner, as amended on October 25, 2021, Mr. Schreiner's appointment as Senior Vice President and Chief Operating Officer, Materials Solutions Division, became effective.”
Affiliation history
-
Current
Start not stated–present
Last confirmed March 31, 2026
Company network
Leadership on record at Mks Inc
- John T. C. Lee CEO, Board Member
- Ramakumar Mayampurath CFO
- Michelle M. McCarthy Chief Accounting Officer
- Elizabeth A. Mora Board Member
- Geoff Wild Board Member
- Jacqueline F. Moloney Board Member
- Rajeev Batra Board Member
- Wissam Jabre Board Member
Executive compensation
Compensation components disclosed in company proxy statements. Amounts are nominal USD; total is the company-reported figure.
| Fiscal year | Company | Role | Salary | Total |
|---|---|---|---|---|
| 2025 | Mks Inc (MKSI) | EVP and COO | $541,447 | $2,870,835 |
| 2024 | Mks Inc (MKSI) | EVP and COO, Materials Solutions Division | $477,900 | $2,672,625 |
| 2023 | Mks Inc (MKSI) | EVP and COO, Materials Solutions Division | $465,718 | $2,007,561 |
| 2022 | Mks Inc (MKSI) | EVP and COO, Materials Solutions Division | $457,598 | $1,588,376 |
| 2021 | Mks Inc (MKSI) | EVP and COO, Materials Solutions Division | $433,543 | $1,809,765 |
| 2020 | Mks Inc (MKSI) | EVP and COO, Materials Solutions Division | $407,769 | $1,522,385 |