0001127602-15-010560.txt : 20150309 0001127602-15-010560.hdr.sgml : 20150309 20150309092246 ACCESSION NUMBER: 0001127602-15-010560 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20150306 FILED AS OF DATE: 20150309 DATE AS OF CHANGE: 20150309 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 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: HANLEY PETER CENTRAL INDEX KEY: 0001185717 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-23621 FILM NUMBER: 15683725 4 1 form4.xml PRIMARY DOCUMENT X0306 4 2015-03-06 0001049502 MKS INSTRUMENTS INC MKSI 0001185717 HANLEY PETER 2 TECH DRIVE ANDOVER MA 01810 1 Common Stock 2015-03-06 4 S 0 325 34.98 D 4848.548 D This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person. /s/Renee M. Donlan POA 2015-03-08