0001127602-21-014262.txt : 20210422 0001127602-21-014262.hdr.sgml : 20210422 20210422150339 ACCESSION NUMBER: 0001127602-21-014262 CONFORMED SUBMISSION TYPE: 4/A PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210413 FILED AS OF DATE: 20210422 DATE AS OF CHANGE: 20210422 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Gitin Mark Milton CENTRAL INDEX KEY: 0001842711 FILING VALUES: FORM TYPE: 4/A SEC ACT: 1934 Act SEC FILE NUMBER: 000-23621 FILM NUMBER: 21844467 MAIL ADDRESS: STREET 1: MKS INSTRUMENTS, INC., 2 TECH DRIVE STREET 2: SUITE 201 CITY: ANDOVER STATE: MA ZIP: 01810 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/A 1 form4a.xml PRIMARY DOCUMENT X0306 4/A 2021-04-13 2021-04-14 0001049502 MKS INSTRUMENTS INC MKSI 0001842711 Gitin Mark Milton C/O MKS INSTRUMENTS, INC. 2 TECH DRIVE, SUITE 201 ANDOVER MA 01810 1 SVP & GM, L&M Division Common Stock 2021-04-13 4 F 0 317 186.52 D 4733.054 D This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person. The original Form 4 filed on April 14, 2021 (the "Original Form 4"), is hereby amended solely to correct an error in the number of shares of common stock of MKS Instruments, Inc. that were withheld from the reporting person for the payment of tax liabilities. Please note that the 70 additional shares that should have been reported as withheld for the payment of tax liabilities on the Original Form 4 were included in the reporting person's holdings in a subsequent Form 4 filed on April 21, 2021. The reporting person will exclude these shares from the reporting person's holdings in future filings. /s/ M. Kathryn Rickards, attorney-in-fact 2021-04-22