| 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 |
|---|---|---|---|---|---|---|---|---|---|
Mks Inc. (MKSI) has 12 insiders with recent SEC Form 4 filings, including 0 buys and 13 sells. MKSI is classified in the Electronic Equipment, Instruments & Components industry within the Information Technology sector.
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| CEO | 144.7K | $45.30M | - | |
| VP | 53.8K | $16.84M | - | |
| Dir | 40.0K | $12.53M | - | |
| COO | 19.2K | $6.01M | - | |
| Dir | 19.1K | $5.99M | - |
Buys and sells only
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Feb 20, 2026 | Williams John Edward | EVP &Gm, Psd | Sell | 2,043 | $256.41 | $523,744.37 | -35.9% | +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 | Lee John Tseng-Chung | President &CEO | Sell | 30,000 | $256.77 | $7,703,242.04 | -4.5% | +20.8% | - | |
| Dec 2, 2025 | Mora Elizabeth57 | Director | Sell | 300 | $158.81 | $47,643.00 | -1.6% | +51.7% | - | |
| Oct 22, 2025 | Schreiner James Alan | EVP &COO | Sell | 711 | $138.68 | $98,601.48 | -3.1% | +56.7% | - | |
| Oct 1, 2025 | Moloney Jacqueline F53 | Director | Sell | 300 | $122.14 | $36,642.00 | -2.5% | +23.3% | - | |
| Sep 18, 2025 | Henry David Philip54 | EVP, Global Str Mktg &Gm, Msd | Sell | 5,000 | $130.00 | $650,000.00 | -24.3% | +14.5% | - | |
| Sep 18, 2025 | Schreiner James Alan | EVP &COO | Sell | 838 | $124.00 | $103,912.00 | -3.5% | +14.5% | - | |
| Sep 2, 2025 | Mora Elizabeth57 | Director | Sell | 300 | $99.85 | $29,955.00 | -1.5% | +53.0% | - | |
| Aug 1, 2025 | Moloney Jacqueline F53 | Director | Sell | 300 | $92.10 | $27,630.00 | -2.5% | +50.2% | +220.7% |