STEWART WILLIAM D 4
4 · MKS INSTRUMENTS INC · Filed Mar 1, 2012
Insider Transaction Report
Form 4
STEWART WILLIAM D
V.P. Vacuum Products & PFMC
Transactions
- Exercise/Conversion
Restricted Stock Unit
2012-02-28−1,018→ 9,437.097 total→ Common Stock (1,018 underlying) - Exercise/Conversion
Common Stock
2012-02-28+1,446.079→ 1,446.079 total - Tax Payment
Common Stock
2012-02-28$30.63/sh−767$23,493→ 1,697.079 total - Exercise/Conversion
Restricted Stock Unit
2012-02-28−1,446.079→ 10,252.158 total→ Common Stock (1,446.079 underlying) - Exercise/Conversion
Common Stock
2012-02-28+1,018→ 2,464.079 total
Holdings
- 0.552(indirect: By Spouse)
Common Stock
Footnotes (4)
- [F1]Each restricted stock unit represents the contingent right to receive one share of common stock of MKS Instruments, Inc.
- [F2]This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person.
- [F3]These RSUs are subject to the achievement of performance criteria determined in the first year of the grant and thereafter vests in equal annual installments over three years.
- [F4]The RSUs vest in equal annual installments over three years.