<SEC-DOCUMENT>0001193125-19-025881-index.html : 20190201
<SEC-HEADER>0001193125-19-025881.hdr.sgml : 20190201
<ACCEPTANCE-DATETIME>20190201161539
ACCESSION NUMBER:		0001193125-19-025881
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		9
CONFORMED PERIOD OF REPORT:	20190201
ITEM INFORMATION:		Entry into a Material Definitive Agreement
ITEM INFORMATION:		Termination of a Material Definitive Agreement
ITEM INFORMATION:		Completion of Acquisition or Disposition of Assets
ITEM INFORMATION:		Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20190201
DATE AS OF CHANGE:		20190201

FILER:

	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:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-23621
		FILM NUMBER:		19560015

	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
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Document 1 - file: d699437d8k.htm

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Document 2 - file: d699437dex101.htm

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<DESCRIPTION>EX-10.2
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Document 3 - file: d699437dex102.htm

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<DESCRIPTION>EX-99.1
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Document 4 - file: d699437dex991.htm

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Document 6 - file: g699437graphic02.jpg

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<DESCRIPTION>GRAPHIC
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Document 7 - file: g699437graphic03.jpg

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Document 8 - file: g699437msk2.jpg

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Document 9 - file: g699437page226.jpg

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