John Tseng-Chung Lee, Senior VP, Business Units at MKS INSTRUMENTS INC (MKSI), sold 9,128 shares at $29.55 ($270K) on 2014-06-13, disclosed to the SEC on 2014-06-16.
Seasonal sale ($270k) by Senior VP, Business Units — this insider has traded MKSI in June in at least three consecutive prior years. Pattern-driven, low signal.
Nothing distinguishes this filing.
| Filing → |
| MKSI | SELL | 2026-02-23 | $7.7M | — | Filing → |
| MKSI | SELL | 2018-02-21 | $2.9M | — | Filing → |
| MKSI | SELL | 2017-11-14 | $440K | — | Filing → |