McCarthy Michelle M (CIK 1732461) reported 10 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-08). Recent activity: Sell MKSI (2,434 shares), Buy MKSI (968 shares), Buy MKSI (1,107 shares), Buy MKSI (1,736 shares), Sell MKSI (1,375 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-08 | MKS INC (MKSI) | SVP & Chief Accounting Officer | Sell | 2,434 | $767,270 |
| 2026-04-16 | MKS INC (MKSI) | SVP & Chief Accounting Officer | Buy | 968 | $0 |
| 2026-04-16 | MKS INC (MKSI) | SVP & Chief Accounting Officer | Buy | 1,107 | $0 |
| 2026-04-16 | MKS INC (MKSI) | SVP & Chief Accounting Officer | Buy | 1,736 | $0 |
| 2026-04-16 | MKS INC (MKSI) | SVP & Chief Accounting Officer | Sell | 1,375 | $377,080 |
| 2026-02-23 | MKS INC (MKSI) | VP & Chief Accounting Officer | Sell | 650 | $162,220 |
| 2026-02-23 | MKS INC (MKSI) | VP & Chief Accounting Officer | Sell | 816 | $204,286 |
| 2025-04-17 | MKS INSTRUMENTS INC (MKSI) | VP & Chief Accounting Officer | Buy | 968 | $0 |
| 2025-04-17 | MKS INSTRUMENTS INC (MKSI) | VP & Chief Accounting Officer | Buy | 1,106 | $0 |
| 2025-04-17 | MKS INSTRUMENTS INC (MKSI) | VP & Chief Accounting Officer | Sell | 608 | $41,636 |
Source: SEC Form 4 filings · as of 2026-06-08