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4//SEC Filing

STEWART WILLIAM D 4

Accession 0001127602-12-012641

CIK 0001049502other

Filed

Apr 2, 8:00 PM ET

Accepted

Apr 3, 10:27 AM ET

Size

12.2 KB

Accession

0001127602-12-012641

Insider Transaction Report

Form 4
Period: 2012-04-02
STEWART WILLIAM D
V.P. Vacuum Products & PFMC
Transactions
  • Tax Payment

    Common Stock

    2012-04-02$29.70/sh3,617$107,42515,261.334 total
  • Exercise/Conversion

    Common Stock

    2012-04-02+5,592.15812,841.237 total
  • Exercise/Conversion

    Restricted Stock Unit

    2012-04-025,592.1580 total
    Common Stock (5,592.158 underlying)
  • Exercise/Conversion

    Common Stock

    2012-04-02+6,037.09718,878.334 total
  • Exercise/Conversion

    Restricted Stock Unit

    2012-04-026,037.0970 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.

Issuer

MKS INSTRUMENTS INC

CIK 0001049502

Entity typeother

Related Parties

1
  • filerCIK 0001202731

Filing Metadata

Form type
4
Filed
Apr 2, 8:00 PM ET
Accepted
Apr 3, 10:27 AM ET
Size
12.2 KB