0001127602-17-034012.txt : 20171206 0001127602-17-034012.hdr.sgml : 20171206 20171206122542 ACCESSION NUMBER: 0001127602-17-034012 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20171205 FILED AS OF DATE: 20171206 DATE AS OF CHANGE: 20171206 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: 171241657 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 X0306 4 2017-12-05 0001049502 MKS INSTRUMENTS INC MKSI 0001185717 HANLEY PETER 2 TECH DRIVE, SUITE 201 ANDOVER MA 01810 1 Common Stock 2017-12-05 4 S 0 200 92.576 D 2872.102 D This transaction was executed in multiple trades at prices ranging from $92.575 to $92.577. 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/ M. Kathryn Rickards, attorney-in-fact 2017-12-06