MKS Inc. (MKSI)
NasdaqGS
Price as at 10 Aug 2026, 12:18 UTC. Quotes are delayed.
Fundamentals
Valuation and ratings
MKS Inc. trades at USD304.99. We do not hold enough of the inputs to value this company with the confidence the estimate implies, so we publish no fair value for it rather than a number we would not defend.
About MKS Inc.
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. The company operates through Vacuum Solutions Division (VSD), Photonics Solutions Division (PSD), and Material Solutions Division (MSD) segments. Its 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, photonics, optics, precision motion control, and vibration control. Its 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 based in Andover, Massachusetts.
Company profile, industry and headcount are as reported by our data provider and can lag a company's own filings by a reporting period. The annual report is the authority.
Super investor ownership
17 of the funds we track reported a position in their latest SEC 13F filing. Largest first:
- Steve Cohen, Point72 Asset Management, L.P.$888.20M · 1.0% of book
- Whale Rock Capital, Whale Rock Capital Management LLC$565.51M · 4.5% of book
- Scott Ferguson, Sachem Head Capital Management LP$361.49M · 7.5% of book
- Ken Griffin, CITADEL ADVISORS LLC$310.32M · 0.0% of book
- Israel Englander, MILLENNIUM MANAGEMENT LLC$286.93M · 0.1% of book
A word of warning on reading these figures: a 13F reports the market value of a holding, so a fund that traded nothing at all still appears to have sold when the price fell. We found 102 companies where the standard reading gives the opposite answer. Only the share count is honest.
Common questions
Which funds own MKSI?
17 of the institutions we track reported a position in MKSI in their most recent SEC 13F filing. A 13F is filed up to 45 days after quarter end, so it tells you what a fund held then, not what it holds now.
Where does SteadyShares get its MKSI data?
Fundamentals for MKSI come from company filings and exchange data, as listed on NasdaqGS; institutional ownership comes from SEC 13F filings. The share price shown was last refreshed on 10 Aug 2026, 12:18 UTC and is delayed. Metrics we do not hold are left out of the page rather than estimated.
The full research page for MKSI, with financial statements, ownership detail, peer comparison and alerts, is free inside the app.
Data from company filings, exchange quotes and SEC EDGAR 13F disclosures. Quotes are delayed. Metrics we do not have are left out rather than estimated. Educational information, not financial advice.