0001127602-21-011393.txt : 20210318 0001127602-21-011393.hdr.sgml : 20210318 20210318154711 ACCESSION NUMBER: 0001127602-21-011393 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210317 FILED AS OF DATE: 20210318 DATE AS OF CHANGE: 20210318 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Moloney Jacqueline F CENTRAL INDEX KEY: 0001501968 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-23621 FILM NUMBER: 21754231 MAIL ADDRESS: STREET 1: 222 MERRIMACK STREET CITY: LOWELL STATE: MA ZIP: 01852 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 2021-03-17 0001049502 MKS INSTRUMENTS INC MKSI 0001501968 Moloney Jacqueline F C/O MKS INSTRUMENTS, INC. 2 TECH DRIVE, SUITE 201 ANDOVER MA 01810 1 Common Stock 2021-03-17 5 G 0 E 285 0 D 7791.49 D /s/ M. Kathryn Rickards, attorney-in-fact 2021-03-18