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

Insider buying vs selling

Have Mks Instruments Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
James Alan SchreinerEVP COO2025-08-181,249$100.22
$125.17kSell
John Edward WilliamsEVP GM PSD2025-08-15308$104.73
$32.26kSell
Jacqueline F. MoloneyDirector2025-08-01300$92.10
$27.63kSell
James Alan SchreinerEVP COO MSD2025-07-07957$102.44
$98.04kSell
David Philip HenryEVP Operations Corp Mktg2025-07-032,000$105.00
$210.00kSell
Elizabeth MoraDirector2025-06-02300$81.78
$24.53kSell
John Edward WilliamsEVP GM PSD2025-04-17565$63.69
$35.98kSell
Michelle M. McCarthyVP Chief Accounting Officer2025-04-15608$68.48
$41.64kSell
Elizabeth MoraDirector2025-03-03275$92.46
$25.43kSell
Jacqueline F. MoloneyDirector2025-03-03300$92.46
$27.74kSell

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Net Insider Buy/Sell (L12M) Ownership

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MKSI Shareholders

What type of owners hold Mks Instruments Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Electric Co Emerson14.73%9,889,905$983.25MInsider
Vanguard Group Inc11.10%7,456,617$741.34MInstitution
Blackrock Inc10.89%7,316,563$727.41MInstitution
Carlyle Group Inc9.65%6,482,732$644.51MInsider
Carlyle Partners VI Cayman Holdings LP9.65%6,482,732$644.51MInsider
Price T Rowe Associates Inc6.15%4,129,128$410.52MInstitution
Claire R. Bertucci6.12%4,109,967$408.61MInsider
Victory Capital Management Inc5.76%3,866,182$384.38MInstitution
Fmr LLC5.70%3,829,376$380.72MInstitution
Capital International Investors4.84%3,252,586$323.37MInstitution

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MKSI vs Scientific & Technical Instrument Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
MKSI72.05%27.95%Net SellingNet Selling
CGNX91.59%3.77%Net SellingNet Selling
VNT99.00%1.00%Net SellingNet Buying
ITRI83.63%16.37%Net SellingNet Selling
BMI95.09%4.29%Net Selling

Mks Instruments Stock Ownership FAQ

Who owns Mks Instruments?

Mks Instruments (NASDAQ: MKSI) is owned by 111.19% institutional shareholders, 43.13% Mks Instruments insiders, and 0.00% retail investors. Electric Co Emerson is the largest individual Mks Instruments shareholder, owning 9.89M shares representing 14.73% of the company. Electric Co Emerson's Mks Instruments shares are currently valued at $1.04B.

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