0001127602-16-038163.txt : 20160128 0001127602-16-038163.hdr.sgml : 20160128 20160128113018 ACCESSION NUMBER: 0001127602-16-038163 CONFORMED SUBMISSION TYPE: 4/A PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20140130 FILED AS OF DATE: 20160128 DATE AS OF CHANGE: 20160128 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: COLELLA GERARD G CENTRAL INDEX KEY: 0001256715 FILING VALUES: FORM TYPE: 4/A SEC ACT: 1934 Act SEC FILE NUMBER: 000-23621 FILM NUMBER: 161367340 MAIL ADDRESS: STREET 1: 6 SHATTUCK RD CITY: ANDOVER STATE: MA ZIP: 01810 4/A 1 form4a.xml PRIMARY DOCUMENT X0306 4/A 2014-01-30 2014-02-03 0001049502 MKS INSTRUMENTS INC MKSI 0001256715 COLELLA GERARD G 2 TECH DRIVE ANDOVER MA 01810 1 1 CEO, President, Director Restricted Stock Unit 2014-01-30 4 J 0 2080.238 D Common Stock 2080.238 32716.903 D Each restricted stock unit represents the contingent right to receive one share of common stock of MKS Instruments, Inc. This transaction reflects the forfeiture of RSUs due to performance criteria. On February 3, 2014, the reporting person mistakenly filed a Form 4 reporting an acquisition of restricted stock units instead of a disposition of restricted stock units. 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. /s/Renee M. Donlan POA 2016-01-28