0001127602-24-015595.txt : 20240516 0001127602-24-015595.hdr.sgml : 20240516 20240516153249 ACCESSION NUMBER: 0001127602-24-015595 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240515 FILED AS OF DATE: 20240516 DATE AS OF CHANGE: 20240516 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Williams John Edward CENTRAL INDEX KEY: 0001710173 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-23621 FILM NUMBER: 24955130 MAIL ADDRESS: STREET 1: 5871 RIDGETOP CT CITY: LAKE OSWEGO STATE: OR ZIP: 97035 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: MKS INSTRUMENTS INC CENTRAL INDEX KEY: 0001049502 STANDARD INDUSTRIAL CLASSIFICATION: INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL [3823] ORGANIZATION NAME: 08 Industrial Applications and Services 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 X0508 4 2024-05-15 0001049502 MKS INSTRUMENTS INC MKSI 0001710173 Williams John Edward C/O MKS INSTRUMENTS, INC. 2 TECH DRIVE, SUITE 201 ANDOVER MA 01810 1 EVP & GM, PSD 0 Restricted Stock Unit 2024-05-15 4 A 0 2524.272 A Common Stock 2524.272 9471.205 D Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. These RSUs vest in three equal annual installments commencing on February 15, 2025, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. /s/ M. Kathryn Rickards, attorney-in-fact 2024-05-16