18 insiders have filed at MKSI since 2023Q3: names, roles, reported stakes, and each person's buying and selling record from SEC Form 3/4/5 filings.
| name | role | reported stake | % of company | buys (3y) | sells (3y) |
|---|---|---|---|---|---|
| Lee John Tseng-Chung | President & CEO | 154.7k | 0.218% | 4 sells $7.7M | |
| Burke Kathleen Flaherty | EVP, Gc & Secretary | 53.8k | 0.076% | 4 sells $3.1M | |
| Colella Gerald G | Director | 48.2k | 0.068% | 6 sells $9.2M | |
| Schreiner James Alan | EVP & COO | 23.4k | 0.033% | 4 sells $1.3M | |
| Henry David Philip | EVP, Global Str Mktg & Gm, Msd | 18.8k | 0.026% | 1 buys $171k | 3 sells $1.4M |
| Mora Elizabeth | Director | 18.7k | 0.026% | 12 sells $405k | |
| Gitin Mark Milton | EVP & Gm, Psd | 16.1k | 0.023% | ||
| Taranto Eric Robert | EVP & Gm, Vsd | 15.4k | 0.022% | 2 sells $1.4M | |
| Batra Raj | Director | 15.4k | 0.022% | ||
| Donahue Joseph B | Director | 11.4k | 0.016% | ||
| Warner Michelle M | Director | 10.9k | 0.015% | ||
| Moloney Jacqueline F | Director | 10.4k | 0.015% | 12 sells $775k | |
| Mayampurath Ramakumar | EVP & CFO | 8.8k | 0.012% | ||
| Cannone Peter III | Director | 8.4k | 0.012% | 1 sells $323k | |
| Jabre Wissam G | Director | 4.5k | <0.01% | ||
| Williams John Edward | EVP & Gm, Psd | 3.6k | <0.01% | 2 sells $737k | |
| Bagshaw Seth H | EVP, CFO & Treasurer | 1 | <0.01% | 5 sells $6.5M | |
| Mccarthy Michelle M | VP & Chief Accounting Officer | 2 sells $367k |
Full register at boothcheck.com/insiders/MKSI. Stakes are the newest reported Form 3/4/5 balances (they update only when insiders file). Sales counted include pre-scheduled plan sales, labeled. A filed record, not a forecast. Nothing here is investment advice.