<SEC-DOCUMENT>0001193125-16-435003-index.html : 20160122
<SEC-HEADER>0001193125-16-435003.hdr.sgml : 20160122
<ACCEPTANCE-DATETIME>20160122061038
ACCESSION NUMBER:		0001193125-16-435003
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20160308
FILED AS OF DATE:		20160122
DATE AS OF CHANGE:		20160122
EFFECTIVENESS DATE:		20160122

FILER:

	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

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-30205
		FILM NUMBER:		161354671

	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>DEF 14A
<SEQUENCE>1
<FILENAME>d126735ddef14a.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: d126735ddef14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g126735g31x04.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g126735g31x04.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g126735g36c11.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g126735g36c11.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g126735img1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g126735img1.jpg

</DOCUMENT>
</SEC-DOCUMENT>