WEIGNER RONALD 4
4 · MKS INSTRUMENTS INC · Filed Mar 4, 2009
Insider Transaction Report
Form 4
WEIGNER RONALD
V.P., C.F.O & Treasurer
Transactions
- Exercise/Conversion
Common Stock
2009-03-02+3,156→ 10,205.342 total - Exercise/Conversion
Restricted Stock Unit
2009-03-02−3,156→ 13,156 total→ Common Stock (3,156 underlying) - Sale
Common Stock
2009-03-02$11.89/sh−1,003$11,926→ 9,202.342 total
Footnotes (2)
- [F1]Each restricted stock unit represents the contingent right to receive one share of common stock of MKS Instruments, Inc.
- [F2]One half of RSUs shall vest in equal annual installments over three years, and the other half shall be subject to the achievement of performance criteria, and thereafter shall vest in equal annual installments over three years.