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

Insider buying vs selling

Have Mks Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Elizabeth MoraDirector2025-12-02300$158.81
$47.64kSell
Ramakumar MayampurathEVP CFO2025-11-172,628$142.74
$375.12kSell
Kathleen Flaherty BurkeEVP GC Secretary2025-10-31777$143.71
$111.66kSell
John Tsengchung LeePresident CEO2025-10-312,003$143.71
$287.85kSell
James Alan SchreinerEVP COO2025-10-22711$138.68
$98.60kSell
Jacqueline F. MoloneyDirector2025-10-01300$122.14
$36.64kSell
David Philip HenryEVP Global Str Mktg GM MSD2025-09-185,000$130.00
$650.00kSell
James Alan SchreinerEVP COO2025-09-18838$124.00
$103.91kSell
Elizabeth MoraDirector2025-09-02300$99.85
$29.96kSell
James Alan SchreinerEVP COO2025-08-181,249$100.22
$125.17kSell

1 of 3

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 Emerson14.72%9,889,905$1.47BInsider
Vanguard Group Inc11.54%7,752,097$1.15BInstitution
Carlyle Group Inc9.65%6,482,732$963.98MInsider
Carlyle Partners VI Cayman Holdings LP9.65%6,482,732$963.98MInsider
Blackrock Inc9.12%6,123,329$910.54MInstitution
Claire R. Bertucci6.12%4,109,967$611.15MInsider
Price T Rowe Associates Inc5.41%3,633,019$540.23MInstitution
Victory Capital Management Inc5.33%3,582,216$532.68MInstitution
Fmr LLC5.13%3,443,264$512.01MInstitution
Capital International Investors4.85%3,254,663$483.97MInstitution

1 of 3

MKSI vs Scientific & Technical Instrument Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
MKSI71.31%28.69%Net SellingNet Selling
CGNX95.52%3.77%Net SellingNet Buying
VNT98.18%1.01%Net SellingNet Buying
BMI95.57%4.29%Net Selling
ESE96.02%3.98%Net SellingNet Selling

Mks Stock Ownership FAQ

Who owns Mks?

Mks (NASDAQ: MKSI) is owned by 107.19% institutional shareholders, 43.12% Mks insiders, and 0.00% retail investors. Electric Co Emerson is the largest individual Mks shareholder, owning 9.89M shares representing 14.72% of the company. Electric Co Emerson's Mks shares are currently valued at $1.55B.

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.