0001127602-21-028619.txt : 20211108 0001127602-21-028619.hdr.sgml : 20211108 20211108174036 ACCESSION NUMBER: 0001127602-21-028619 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20211104 FILED AS OF DATE: 20211108 DATE AS OF CHANGE: 20211108 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: COLELLA GERARD G CENTRAL INDEX KEY: 0001256715 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-23621 FILM NUMBER: 211389126 MAIL ADDRESS: STREET 1: 6 SHATTUCK RD 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 1 form4.xml PRIMARY DOCUMENT X0306 4 2021-11-04 0001049502 MKS INSTRUMENTS INC MKSI 0001256715 COLELLA GERARD G C/O MKS INSTRUMENTS, INC. 2 TECH DRIVE, SUITE 201 ANDOVER MA 01810 1 Common Stock 2021-11-04 4 S 0 3000 155.1625 D 97000 I By The Gerald G. Colella Living Trust Common Stock 1148.636 D This transaction was executed in multiple trades at prices ranging from $153.03 to $156.95. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide, upon request, the full information regarding the number of shares and prices at which the transaction was effected. /s/ M. Kathryn Rickards, attorney-in-fact 2021-11-05