MKSI stock holds firm as MKS Inc. director plans Rule 144 share sale

Published on 09/02/2026 at 08:59 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

MKSI stock remains supported while a company director registers a modest Rule 144 share sale valued at just over USD 75,000, offering investors a glimpse into insider activity alongside the latest market valuation metrics.

MKSI, US55306N1046, Illustration mit AI erstellt.

MKS Inc. stock (ISIN US55306N1046) is trading around the mid-200 USD range as of early September 2026, with a recent fair-value quote of 247.45 USD and a market capitalization of about 16.8 billion USD according to data compiled by MarketBeat on September 1, 2026.

Insider share sale offers a fresh data point

According to a recent Rule 144 filing summarized by StockTitan on September 1, 2026, a director of MKS Inc. has planned the sale of 300 shares of company stock under Rule 144.

The same filing indicates an aggregate planned sale value of 75,288.00 USD for those 300 shares, implying a reference share price of about 250.96 USD for the transaction as of the filing date.

Market positioning versus peer valuations

MarketBeat data as of September 1, 2026 places MKSI at a fair-value estimate of 247.45 USD per share with a market capitalization of 16.762 billion USD, underscoring the companys scale in the technology and equipment space relative to its listed peers.

The fair-value level cited by MarketBeat, at 247.45 USD, sits slightly below the implied 250.96 USD price from the directors planned Rule 144 sale, giving investors a concrete comparison between current market assessments and insider reference pricing.

Go deeper

More MKSI stock coverage

Further reports, ad hoc announcements and background pieces on MKSI can be found in the ad-hoc-news.de topic overview for this ISIN.

All news on MKSI stock Investor Relations

Precision technology products in focus

MKS Inc. is best known for precision subsystems and process control solutions used in semiconductor manufacturing and advanced electronics, where equipment demand often tracks wafer fab investment cycles and long term technology roadmaps.

MKSI stock valuation snapshot

Based on MarketBeat data as of September 1, 2026, MKSI stock at a fair-value level of 247.45 USD corresponds to a market capitalization of 16.762 billion USD on the Nasdaq, highlighting the companys role as a sizable mid cap technology supplier in the United States equity market.