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$ Value

$162K

Shares

650

Price

$250

Filed

Feb 23

Insider

Name

McCarthy Michelle M

Title

VP & Chief Accounting Officer

CIK

0001732461

Roles

Officer

Transaction Details

Transaction Date

2026-02-20

Code

S

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

816

Footnotes

This transaction was executed in multiple trades at prices ranging from $249.070 to $250.030. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide, upon request, the full information regarding the number of shares and prices at which the transaction was effected. | This transaction was executed in multiple trades at prices ranging from $250.160 to $250.790. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide, upon request, the full information regarding the number of shares and prices at which the transaction was effected.

Filing Info

Accession No.

0001049502-26-000038

Form Type

4

Issuer CIK

0001049502

McCarthy Michelle M's History

Date Ticker Type Value
2026-04-15 MKSI M
2026-04-15 MKSI M
2026-04-15 MKSI M
2026-04-15 MKSI F $377K
2026-04-15 MKSI A
2026-04-15 MKSI M
2026-04-15 MKSI M
2026-04-15 MKSI M
2026-02-20 MKSI $162K
2026-02-20 MKSI $204K

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