Mayampurath Ramakumar (CIK 1859332) reported 6 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-26). Recent activity: Sell MKSI (8,810 shares), Buy MKSI (2,958 shares), Buy MKSI (2,702 shares), Sell MKSI (2,516 shares), Buy MKSI (8,295 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-26 | MKS INC (MKSI) | EVP & CFO | Sell | 8,810 | $2.8M |
| 2026-02-18 | MKS INC (MKSI) | EVP & CFO | Buy | 2,958 | $0 |
| 2026-02-18 | MKS INC (MKSI) | EVP & CFO | Buy | 2,702 | $0 |
| 2026-02-18 | MKS INC (MKSI) | EVP & CFO | Sell | 2,516 | $656,006 |
| 2025-11-18 | MKS INC (MKSI) | EVP & CFO | Buy | 8,295 | $0 |
| 2025-11-18 | MKS INC (MKSI) | EVP & CFO | Sell | 2,628 | $375,121 |
Source: SEC Form 4 filings · as of 2026-05-26