<SEC-DOCUMENT>0000950170-23-018878-index.html : 20230508
<SEC-HEADER>0000950170-23-018878.hdr.sgml : 20230508
<ACCEPTANCE-DATETIME>20230508164552
ACCESSION NUMBER:		0000950170-23-018878
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20230508
DATE AS OF CHANGE:		20230508

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:		23898435

	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:			Carlyle Partners VI Cayman Holdings, L.P.
		CENTRAL INDEX KEY:			0001838776
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144

	BUSINESS ADDRESS:	
		STREET 1:		C/O WALKERS CORPORATE LIMITED
		STREET 2:		CAYMAN CORPORATE CENTRE, 27 HOSPITAL RD.
		CITY:			GEORGE TOWN, GRAND CAYMAN
		STATE:			E9
		ZIP:			KY1-9008
		BUSINESS PHONE:		(201) 541-2121

	MAIL ADDRESS:	
		STREET 1:		C/O WALKERS CORPORATE LIMITED
		STREET 2:		CAYMAN CORPORATE CENTRE, 27 HOSPITAL RD.
		CITY:			GEORGE TOWN, GRAND CAYMAN
		STATE:			E9
		ZIP:			KY1-9008
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
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<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

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