| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Insider activity in MKSI over the last quarter tilts toward selling: insiders offloaded a net 10,757 shares worth roughly $3.2M.
MKSI sits in the Electronic Equipment, Instruments & Components industry within the Information Technology sector, so this activity is best read against the sector's broader insider trend.
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| CEO | 134.8K | $40.70M | - | |
| VP | 49.4K | $15.82M | - | |
| Dir | 20.0K | $6.78M | - | |
| COO | 19.2K | $6.63M | - | |
| Dir | 18.8K | $4.73M | - |
Buys and sells only
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 2, 2026 | Mora Elizabeth57 | Director | Sell10b5-1 | 300 | $239.44 | $71,832.00 | -1.6% | +30.0% | - | |
| Feb 24, 2026 | Schreiner James Alan | EVP &COO | Sell | 4,100 | $255.00 | $1,045,500.00 | -14.9% | +32.9% | - | |
| Feb 24, 2026 | Colella Gerald G51 | Director | Sell | 20,000 | $253.43 | $5,068,674.00 | -33.3% | +32.9% | - | |
| Feb 20, 2026 | Cannone Peter III | Director | Sell | 1,250 | $258.06 | $322,574.50 | -13.0% | +20.8% | - | |
| Feb 20, 2026 | McCarthy Michelle M73 | VP &Chief Accounting Officer | Sell | 1,466 | $250.00 | $366,502.70 | -100% | +20.8% | - | |
| Feb 20, 2026 | Moloney Jacqueline F51 | Director | Sell | 829 | $247.55 | $205,218.95 | -7.2% | +20.8% | - | |
| Feb 20, 2026 | Burke Kathleen Flaherty46 | EVP, GC &Secretary | Sell | 4,254 | $250.00 | $1,063,500.00 | -7.3% | +20.8% | - | |
| Feb 20, 2026 | Henry David Philip54 | EVP, Global Str Mktg &Gm, Msd | Sell | 2,000 | $261.56 | $523,120.20 | -9.6% | +20.8% | - | |
| Feb 20, 2026 | Taranto Eric Robert60 | EVP &Gm, Vsd | Sell | 1,453 | $247.55 | $359,623.31 | -6.8% | +20.8% | - | |
| Feb 20, 2026 | Williams John Edward | EVP &Gm, Psd | Sell | 2,043 | $256.41 | $523,744.37 | -35.9% | +20.8% | - |