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Michelle M. McCarthy

CIK: 0001732461

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)3 (25.0%)

Position reduction

Option Exercises (M)5 (41.7%)

Derivative conversions

Awards (A)2 (16.7%)

Compensation grants

Other (G, F, J, C, D, …)2 (16.7%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

MKS INC logo
MKSI

MKS INC

Officer

Discretionary Trading P&L

Holdings

Transaction History (12 total)

  • MKS INC logo
    MKSI

    MKS INC

    Jun 5, 2026
    Sale(S)
    Direct
    2.4K shares at avg. $315.23$767K
  • MKS INC logo
    MKSI

    MKS INC

    Apr 15, 2026
    Award(A)

    Restricted Stock Unit

    Direct
    1.7K shares-
  • MKS INC logo
    MKSI

    MKS INC

    Apr 15, 2026
    Exercise(M)
    Direct
    968 shares-
  • MKS INC logo
    MKSI

    MKS INC

    Apr 15, 2026
    Exercise(M)
    Direct
    1.1K shares-
  • MKS INC logo
    MKSI

    MKS INC

    Apr 15, 2026
    Exercise(M)
    Direct
    1.7K shares-
  • MKS INC logo
    MKSI

    MKS INC

    Apr 15, 2026
    Tax Payment(F)
    Direct
    1.4K shares at avg. $274.15$377K
  • MKS INC logo
    MKSI

    MKS INC

    Feb 20, 2026
    Sale(S)
    Direct
    650 shares at avg. $249.57$162K
  • MKS INC logo
    MKSI

    MKS INC

    Feb 20, 2026
    Sale(S)
    Direct
    816 shares at avg. $250.35$204K
  • MKS INSTRUMENTS INC logo
    MKSI

    MKS INSTRUMENTS INC

    Apr 15, 2025
    Exercise(M)
    Direct
    1.1K shares-
  • MKS INSTRUMENTS INC logo
    MKSI

    MKS INSTRUMENTS INC

    Apr 15, 2025
    Tax Payment(F)
    Direct
    608 shares at avg. $68.48$42K
  • MKS INSTRUMENTS INC logo
    MKSI

    MKS INSTRUMENTS INC

    Apr 15, 2025
    Exercise(M)
    Direct
    968 shares-
  • MKS INSTRUMENTS INC logo
    MKSI

    MKS INSTRUMENTS INC

    Apr 15, 2025
    Award(A)

    Restricted Stock Unit

    Direct
    5.2K shares-

1-12 of 12

About McCarthy Michelle M

McCarthy Michelle M (SEC CIK 0001732461) files insider reports with the SEC as SVP & Chief Accounting Officer of MKS INC (MKSI).

Signal8 holds 4 ownership filings by McCarthy Michelle M, all Form 4s, filed between Apr 17, 2025 and Jun 8, 2026. Those filings report 12 transactions, from Apr 15, 2025 to Jun 5, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on McCarthy Michelle M's filings is in ANDOVER, MA.

Recent filings by McCarthy Michelle M

  • Jun 5, 2026: Open-market sale of MKSI shares (Form 4, code S).
  • Apr 15, 2026: Grant or award of MKSI derivative securities (Form 4, code A).
  • Apr 15, 2026: Option exercises of MKSI shares (3 lines, Form 4, code M).
  • Apr 15, 2026: Tax withholding of MKSI shares (Form 4, code F).
  • Feb 20, 2026: Open-market sales of MKSI shares (2 lines, Form 4, code S).

Other insiders filing for MKS INC (MKSI)

How to read Form 4 transaction codes