<SEC-DOCUMENT>0001140361-21-042078-index.html : 20211216
<SEC-HEADER>0001140361-21-042078.hdr.sgml : 20211216
<ACCEPTANCE-DATETIME>20211216165329
ACCESSION NUMBER:		0001140361-21-042078
CONFORMED SUBMISSION TYPE:	425
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20211216
DATE AS OF CHANGE:		20211216

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CMC Materials, Inc.
		CENTRAL INDEX KEY:			0001102934
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				364324765
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		425
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-30205
		FILM NUMBER:		211498337

	BUSINESS ADDRESS:	
		STREET 1:		870 NORTH COMMONS DRIVE
		CITY:			AURORA
		STATE:			IL
		ZIP:			60504
		BUSINESS PHONE:		6303755461

	MAIL ADDRESS:	
		STREET 1:		870 N COMMONS DR
		CITY:			AURORA
		STATE:			IL
		ZIP:			60504

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CABOT MICROELECTRONICS CORP
		DATE OF NAME CHANGE:	20000110

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CMC Materials, Inc.
		CENTRAL INDEX KEY:			0001102934
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				364324765
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		425

	BUSINESS ADDRESS:	
		STREET 1:		870 NORTH COMMONS DRIVE
		CITY:			AURORA
		STATE:			IL
		ZIP:			60504
		BUSINESS PHONE:		6303755461

	MAIL ADDRESS:	
		STREET 1:		870 N COMMONS DR
		CITY:			AURORA
		STATE:			IL
		ZIP:			60504

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CABOT MICROELECTRONICS CORP
		DATE OF NAME CHANGE:	20000110
</SEC-HEADER>
<DOCUMENT>
<TYPE>425
<SEQUENCE>1
<FILENAME>ny20001672x10_425.htm
<DESCRIPTION>425
<TEXT>
Document 1 - file: ny20001672x10_425.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>ny20001672x10_img01.jpg
<TEXT>
Document 2 - file: ny20001672x10_img01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>ny20001672x10_img02.jpg
<TEXT>
Document 3 - file: ny20001672x10_img02.jpg

</DOCUMENT>
</SEC-DOCUMENT>