<SEC-DOCUMENT>0001127602-18-027641-index.html : 20180917
<SEC-HEADER>0001127602-18-027641.hdr.sgml : 20180917
<ACCEPTANCE-DATETIME>20180917090605
ACCESSION NUMBER:		0001127602-18-027641
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180917
FILED AS OF DATE:		20180917
DATE AS OF CHANGE:		20180917

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Thorp Eleanor Kate
		CENTRAL INDEX KEY:			0001752950

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-30205
		FILM NUMBER:		181072531

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

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CABOT MICROELECTRONICS CORP
		CENTRAL INDEX KEY:			0001102934
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				364324765
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>form3.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
Document 1 - file: form3.html

Document 1 - RAW XML: form3.xml

</DOCUMENT>
</SEC-DOCUMENT>