0001127602-17-017917.txt : 20170512 0001127602-17-017917.hdr.sgml : 20170512 20170512163146 ACCESSION NUMBER: 0001127602-17-017917 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20170511 FILED AS OF DATE: 20170512 DATE AS OF CHANGE: 20170512 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: BAGSHAW SETH H CENTRAL INDEX KEY: 0001192439 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-23621 FILM NUMBER: 17839128 4 1 form4.xml PRIMARY DOCUMENT X0306 4 2017-05-11 0001049502 MKS INSTRUMENTS INC MKSI 0001192439 BAGSHAW SETH H 2 TECH DRIVE, SUITE 201 ANDOVER MA 01810 1 Sr. VP, CFO & Treasurer Common Stock 2017-05-11 4 M 0 5929.791 A 31675.384 D Common Stock 2017-05-11 4 F 0 2790 80.50 D 28885.384 D Restricted Stock Unit 2017-05-11 4 M 0 5929.791 D Common Stock 5929.791 32355.59 D Each restricted stock unit represents the contingent right to receive one share of common stock of MKS Instruments, Inc. This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person. These RSUs originally were scheduled to vest in two equal installments based on the Company's achievement of certain performance criteria for the period ending June 30, 2017 and June 30, 2018. On May 10, 2017, the Compensation Committee accelerated in full the vesting of these RSUs to May 11, 2017 as a result of the Company's 100% achievement of the performance criteria. /s/ M. Kathryn Rickards, attorney-in-fact 2017-05-12