0001127602-23-022181.txt : 20230808 0001127602-23-022181.hdr.sgml : 20230808 20230808122159 ACCESSION NUMBER: 0001127602-23-022181 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230807 FILED AS OF DATE: 20230808 DATE AS OF CHANGE: 20230808 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Burke Kathleen Flaherty CENTRAL INDEX KEY: 0001775435 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-23621 FILM NUMBER: 231150157 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 1 form4.xml PRIMARY DOCUMENT X0508 4 2023-08-07 0001049502 MKS INSTRUMENTS INC MKSI 0001775435 Burke Kathleen Flaherty C/O MKS INSTRUMENTS, INC. 2 TECH DRIVE, SUITE 201 ANDOVER MA 01810 1 EVP, GC & Secretary 0 Common Stock 2023-08-07 4 S 0 6186 101.0837 D 48114.675 D Common Stock 2023-08-07 4 S 0 5377.067 101.4008 D 42737.608 D This transaction was executed in multiple trades at prices ranging from $101.080 to $101.260. 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. This transaction was executed in multiple trades at prices ranging from $101.350 to $101.485. 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 2023-08-08