Filing Details

Form Type:
4/A
Zero Holdings:
No
Publication Time:
2009-02-18 12:23:05
Reporting Period:
2008-05-19
Issuer
Cik Name Symbol Sector (SIC) IRS No
1049502 Mks Instruments Inc MKSI ()
Insiders
Cik Name Reported Address Insider Title Director Officer Large Shareholder Other
1202731 D William Stewart 2 Tech Drive
Andover MA 01810
No Yes No No
Reported Non-Derivative Transactions
Sec. Name Acquisiton - Disposition Date Amount Price Remaning Holdings Equity Swap Involved Form Type Code Nature of Ownership Explanation
Common Stock Disposition 2008-05-19 3,102 $25.72 12,000 No 4 S Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 S Direct