MKS stock (MKSI)
MKS stock (MKSI) closed at $221.50 on Nov 12, 2026, up 38.6% year to date, for a market capitalization of $15.0B. Revenue of $4.8B over the last twelve months; in the latest quarter, revenue up 43.0% year on year, with a 47.7% gross margin and a 23.1% operating margin. Filed with the SEC, as of Sep 30, 2026.
- Last close
- $221.50 (2026-11-12)
- Year to date
- +38.6%
- 52-week range
- $134.74 – $447.62
- Market capitalization
- $15.0B
- Dividend yield
- 0.44%
- Revenue (TTM)
- $4.8B
- Revenue growth
- +43.0%
- Gross margin
- 47.7%
- Operating margin
- 23.1%
- Price / sales
- 3.1
- EV / revenue
- 3.8
- Figures as of
- 2026-09-30
- Named institutional holders
- 168
- Declared ownership
- 73.7% – 99.9%
- Exchange
- Nasdaq
- Headquarters
- Andover, Massachusetts
- Fiscal year ends
- December
- Industry (SEC)
- Industrial Instruments For Measurement, Display, and Control
- Registered with the SEC as
- MKS INC (CIK 1049502)
Who owns MKS?
168 institutional holders named from SEC filings, together declaring between 73.7% and 99.9% of the shares outstanding, as of Oct 30, 2026. The largest named holders of MKS stock are Vanguard (11.1%), BlackRock (10.2%), Capital Group (4.9%), Invesco (3.5%) and State Street (3.2%). From Mar 31, 2026 to Jun 30, 2026, 196 managers opened a position, 234 added, 251 reduced and 52 sold out; the biggest sellers were Fidelity (FMR) and Wellington, the biggest buyers JPMorgan and ALKEON CAPITAL MANAGEMENT LLC.
MKS shareholders: institutions, insiders and funds
MKS dividend
MKS pays a quarterly dividend: $0.97 per share over the last twelve months, a 0.44% yield at the $221.64 close of Nov 12, 2026.
About MKS
We enable technologies that transform our world. We deliver foundational technology solutions to leading edge semiconductor manufacturing, electronics and packaging, and specialty industrial applications. We apply our broad science and engineering capabilities to create instruments, subsystems, systems, process control solutions and specialty chemicals technology that improve process performance, optimize productivity and enable unique innovations for many of the world’s leading technology and industrial companies. Our solutions are critical to addressing the challenges of miniaturization and complexity in advanced device manufacturing by enabling increased power, speed, feature enhancement and optimized connectivity. Our solutions are also critical to addressing ever-increasing performance requirements across a wide array of specialty industrial applications.
MKS' own description, from its annual report (Form 10-K, filed Feb 24, 2026), Item 1. Business. Read the filing on sec.gov
MKS is headquartered in Andover, Massachusetts. It is registered with the SEC as MKS INC (CIK 1049502); its fiscal year ends in December and its shares trade on the Nasdaq. MKS is one of the artificial intelligence (AI) and semiconductor companies tracked on Silicon Floor, in the equipment & test segment, with live prices, SEC filings, financial statements, institutional ownership and dividends.
Latest reported quarter
In its quarter ended Sep 30, 2026 (filed Nov 5, 2026), MKS reported revenue of $1.4B, operating income of $326.0M and net income of $236.0M.
Latest SEC filings
- 8-K: Earnings released (2.02), Nov 4, 2026
- 8-K: Earnings released (2.02), Aug 5, 2026
- 8-K: Executive departure or appointment (5.02), May 12, 2026
- 8-K: Earnings released (2.02), May 6, 2026
More on MKS
Filed figures, quarter by quarter
- MKS revenue by quarter, with the filing behind each
- MKS gross profit by quarter, with the filing behind each
- MKS operating income by quarter, with the filing behind each
- MKS net income by quarter, with the filing behind each
