John Tseng-Chung Lee, Group VP at MKS INSTRUMENTS INC (MKSI), sold 5,734 shares at $29.31 ($167K) on 2011-03-17, disclosed to the SEC on 2011-03-18.
Scheduled sale ($167k) by Group VP under a pre-arranged 10b5-1 plan. Pre-set trade — not a discretionary signal on the stock.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $28.51 | 1,285 | $37K | 21.9% |
| 2 | $29.31 | 4,449 | $130K | 78.1% |
| Total | $29.13 avg | 5,734 | $167K | 100% |
| Filing → |
| MKSI | SELL | 2026-02-23 | $7.7M | — | Filing → |
| MKSI | SELL | 2018-02-21 | $2.9M | — | Filing → |
| MKSI | SELL | 2017-11-14 | $440K | — | Filing → |