McCarthy Michelle M
SEC insider (Form 3/4/5 filer). CIK 0001732461. SVP & Chief Accounting Officer at MKS INC (MKSI). 12 reported Form 4/5 transactions since Sep 2024; latest on Jun 5, 2026. Located in ANDOVER, MA.
Companies McCarthy Michelle M has filed insider reports for
- MKS INC (MKSI): Officer, SVP & Chief Accounting Officer
McCarthy Michelle M
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)
MKSI
MKS INC
Officer
Discretionary Trading P&L
Holdings
Transaction History (12 total)
- Jun 5, 2026MKSI
MKS INC
SaleDirect2.4K shares at avg. $315.23$767K - Apr 15, 2026MKSI
MKS INC
AwardDirectRestricted Stock Unit
1.7K shares- - Apr 15, 2026MKSI
MKS INC
ExerciseDirect968 shares- - Apr 15, 2026MKSI
MKS INC
ExerciseDirect1.1K shares- - Apr 15, 2026MKSI
MKS INC
ExerciseDirect1.7K shares- - Apr 15, 2026MKSI
MKS INC
Tax PaymentDirect1.4K shares at avg. $274.15$377K - Feb 20, 2026MKSI
MKS INC
SaleDirect650 shares at avg. $249.57$162K - Feb 20, 2026MKSI
MKS INC
SaleDirect816 shares at avg. $250.35$204K - Apr 15, 2025MKSI
MKS INSTRUMENTS INC
ExerciseDirect1.1K shares- - Apr 15, 2025MKSI
MKS INSTRUMENTS INC
Tax PaymentDirect608 shares at avg. $68.48$42K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 5, 2026 | MKSI MKS INC | Sale | 2,434 | $315.23 | $767,270 | Direct |
| Apr 15, 2026 | MKSI MKS INC | Award Restricted Stock Unit | 1,673 | - | - | Direct |
| Apr 15, 2026 | MKSI MKS INC | Exercise | 968 | - | $0 | Direct |
| Apr 15, 2026 | MKSI MKS INC | Exercise | 1,107 | - | $0 | Direct |
| Apr 15, 2026 | MKSI MKS INC | Exercise | 1,736 | - | $0 | Direct |
| Apr 15, 2026 | MKSI MKS INC | Tax Payment | 1,375 | $274.15 | $377,080 | Direct |
| Feb 20, 2026 | MKSI MKS INC | Sale | 650 | $249.57 | $162,219 | Direct |
| Feb 20, 2026 | MKSI MKS INC | Sale | 816 | $250.35 | $204,284 | Direct |
| Apr 15, 2025 | MKSI MKS INSTRUMENTS INC | Exercise | 1,106 | - | - | Direct |
| Apr 15, 2025 | MKSI MKS INSTRUMENTS INC | Tax Payment | 608 | $68.48 | $41,636 | Direct |
1-10 of 12 transactions