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

Insider buying vs selling

Have Mks Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
James Alan SchreinerEVP COO2026-06-122,471$345.52
$853.79kSell
James Alan SchreinerEVP COO2026-06-12812$346.41
$281.28kSell
James Alan SchreinerEVP COO2026-06-12217$347.00
$75.30kSell
James Alan SchreinerEVP COO2026-06-10781$317.42
$247.91kSell
Michelle M. McCarthySVP Chief Accounting Officer2026-06-052,434$315.23
$767.27kSell
David Philip HenryEVP Global Str Mktg GM MSD2026-06-016,000$314.43
$1.89MSell
Elizabeth MoraDirector2026-06-01300$318.02
$95.41kSell
Joseph B. DonahueDirector2026-05-272,100$327.95
$688.70kSell
Gerald G. ColellaDirector2026-05-278,210$331.45
$2.72MSell
Gerald G. ColellaDirector2026-05-274,876$332.04
$1.62MSell

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Net Insider Buy/Sell (L12M) Ownership

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MKSI Shareholders

What type of owners hold Mks Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Electric Co Emerson14.64%9,889,905$3.71BInsider
Blackrock Inc9.83%6,641,730$2.49BInstitution
Carlyle Partners VI Cayman Holdings LP9.60%6,482,732$2.43BInsider
Carlyle Group Inc9.60%6,482,732$2.43BInsider
Claire R. Bertucci6.08%4,109,967$1.54BInsider
Invesco Ltd5.51%3,721,459$1.40BInstitution
Vanguard Portfolio Management LLC5.46%3,685,493$1.38BInstitution
Vanguard Capital Management LLC4.46%3,014,201$1.13BInstitution
Jpmorgan Chase Co3.10%2,096,342$786.80MInstitution
State Street Corp3.05%2,057,732$772.31MInstitution

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MKSI vs Scientific & Technical Instrument Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
MKSI70.42%29.58%Net SellingNet Selling
TDY94.94%5.06%Net Selling
FTV86.35%13.65%Net BuyingNet Buying
TRMB94.22%1.30%Net BuyingNet Buying
CGNX94.65%3.89%Net SellingNet Selling

Mks Stock Ownership FAQ

Who owns Mks?

Mks (NASDAQ: MKSI) is owned by 102.12% institutional shareholders, 42.90% Mks insiders, and 0.00% retail investors. Electric Co Emerson is the largest individual Mks shareholder, owning 9.89M shares representing 14.64% of the company. Electric Co Emerson's Mks shares are currently valued at $3.62B.

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