0001127602-11-009578.txt : 20110309
0001127602-11-009578.hdr.sgml : 20110309
20110309115753
ACCESSION NUMBER: 0001127602-11-009578
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20110308
FILED AS OF DATE: 20110309
DATE AS OF CHANGE: 20110309
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Lee John Tseng-Chung
CENTRAL INDEX KEY: 0001414656
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 000-23621
FILM NUMBER: 11674214
MAIL ADDRESS:
STREET 1: 90 INDUSTRIAL WAY
CITY: WILMINGTON
STATE: MA
ZIP: 01887
ISSUER:
COMPANY DATA:
COMPANY CONFORMED NAME: MKS INSTRUMENTS INC
CENTRAL INDEX KEY: 0001049502
STANDARD INDUSTRIAL CLASSIFICATION: INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL [3823]
IRS NUMBER: 042277512
STATE OF INCORPORATION: MA
FISCAL YEAR END: 1231
BUSINESS ADDRESS:
STREET 1: 2 TECH DRIVE
STREET 2: SUITE 201
CITY: ANDOVER
STATE: MA
ZIP: 01810
BUSINESS PHONE: 978-645-5500
MAIL ADDRESS:
STREET 1: 2 TECH DRIVE
STREET 2: SUITE 201
CITY: ANDOVER
STATE: MA
ZIP: 01810
4
1
form4.xml
PRIMARY DOCUMENT
X0303
4
2011-03-08
0001049502
MKS INSTRUMENTS INC
MKSI
0001414656
Lee John Tseng-Chung
2 TECH DRIVE
ANDOVER
MA
01810
1
Group VP, CIT and PFMC
Common Stock
2011-03-08
4
S
0
6129
31.82
D
0.147
D
This transaction was executed in multiple trades at prices ranging from $31.80 to $31.89 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide, upon request, the full information regarding the number of shares and prices at which the transaction was effected.
/s/Renee M. Donlan POA
2011-03-09