0001971857-23-000598.txt : 20230831 0001971857-23-000598.hdr.sgml : 20230831 20230831124029 ACCESSION NUMBER: 0001971857-23-000598 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230831 DATE AS OF CHANGE: 20230831 SUBJECT COMPANY: 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 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 000-23621 FILM NUMBER: 231227933 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 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: COLELLA GERARD G CENTRAL INDEX KEY: 0001256715 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: 6 SHATTUCK RD CITY: ANDOVER STATE: MA ZIP: 01810 144 1 primary_doc.xml 144 0001256715 XXXXXXXX LIVE 0001049502 MKS INSTRUMENTS INC 000-23621 2 TECH DRIVE SUITE 201 ANDOVER MA 01810 978-645-5500 COLELLA GERARD G Director COMMON MERRILL LYNCH

25 BURLINGTON MALL RD SUITE 201 BURLINGTON MA 01803

10000 1000000.00 66862788 08/31/2023 NASDAQ COMMON 07/02/2020 STOCK OPTION MKS INSTRUMENTS N 10000 07/02/2020 CASH Y SHARES SOLD VIA GERALD G COLLELA TRUST 08/31/2023 05/08/2023 GERALD G COLLELA