NASDAQ: MKSI
Mks Inc Stock Ownership - Who owns Mks?

Insider buying vs selling

Have Mks Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Jacqueline F. MoloneyDirector2026-03-12340$213.77
$72.68kSell
Eric Robert TarantoEVP GM VSD2026-03-064,567$220.52
$1.01MSell
Elizabeth MoraDirector2026-03-02300$239.44
$71.83kSell
Gerald G. ColellaDirector2026-02-2410,000$253.97
$2.54MSell
James Alan SchreinerEVP COO2026-02-244,100$255.00
$1.05MSell
Jacqueline F. MoloneyDirector2026-02-20829$247.55
$205.22kSell
Eric Robert TarantoEVP GM VSD2026-02-201,452$247.55
$359.44kSell
Michelle M. McCarthyVP Chief Accounting Officer2026-02-20816$250.35
$204.28kSell
Kathleen Flaherty BurkeEVP GC Secretary2026-02-204,254$250.00
$1.06MSell
David Philip HenryEVP Global Str Mktg GM MSD2026-02-202,000$261.56
$523.12kSell

1 of 5

MKSI insiders have sold more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when MKSI insiders and whales buy or sell their stock.

MKSI Shareholders

What type of owners hold Mks Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Electric Co Emerson14.71%9,889,905$2.32BInsider
Vanguard Group Inc11.13%7,487,305$1.76BInstitution
Carlyle Partners VI Cayman Holdings LP9.64%6,482,732$1.52BInsider
Carlyle Group Inc9.64%6,482,732$1.52BInsider
Blackrock Inc9.13%6,138,839$1.44BInstitution
Claire R. Bertucci6.11%4,109,967$964.44MInsider
Invesco Ltd5.73%3,855,511$904.73MInstitution
Capital International Investors4.82%3,239,230$760.12MInstitution
Fmr LLC4.76%3,198,335$750.52MInstitution
Price T Rowe Associates Inc4.10%2,753,850$646.22MInstitution

1 of 3

MKSI vs Scientific & Technical Instrument Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
MKSI70.89%29.11%Net SellingNet Selling
TRMB96.85%1.22%Net SellingNet Selling
FTV86.62%13.38%Net SellingNet Selling
CGNX96.11%3.89%Net SellingNet Selling
ESE95.97%4.03%Net SellingNet Buying

Mks Stock Ownership FAQ

Who owns Mks?

Mks (NASDAQ: MKSI) is owned by 105.10% institutional shareholders, 43.16% Mks insiders, and 0.00% retail investors. Electric Co Emerson is the largest individual Mks shareholder, owning 9.89M shares representing 14.71% of the company. Electric Co Emerson's Mks shares are currently valued at $2.34B.

If you're new to stock investing, here's how to buy Mks stock.
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.