STEWART WILLIAM D 4
4 · MKS INSTRUMENTS INC · Filed Apr 3, 2012
Insider Transaction Report
Form 4
STEWART WILLIAM D
V.P. Vacuum Products & PFMC
Transactions
- Tax Payment
Common Stock
2012-04-02$29.70/sh−3,617$107,425→ 15,261.334 total - Exercise/Conversion
Common Stock
2012-04-02+5,592.158→ 12,841.237 total - Exercise/Conversion
Restricted Stock Unit
2012-04-02−5,592.158→ 0 total→ Common Stock (5,592.158 underlying) - Exercise/Conversion
Common Stock
2012-04-02+6,037.097→ 18,878.334 total - Exercise/Conversion
Restricted Stock Unit
2012-04-02−6,037.097→ 0 total→ Common Stock (6,037.097 underlying)
Footnotes (5)
- [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]Mr. Stewart resigned from the Company on April 2, 2012. Upon Mr. Stewart's resignation for good cause, 100% of unvested RSUs vest per agreement with Company.
- [F4]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.
- [F5]The RSUs vest in equal annual installments over three years.