<SEC-DOCUMENT>0001112325-16-000050-index.html : 20160202
<SEC-HEADER>0001112325-16-000050.hdr.sgml : 20160202
<ACCEPTANCE-DATETIME>20160201175215
ACCESSION NUMBER:		0001112325-16-000050
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20160202
DATE AS OF CHANGE:		20160201

SUBJECT COMPANY:	

	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:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-60411
		FILM NUMBER:		161378552

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RIVERBRIDGE PARTNERS LLC
		CENTRAL INDEX KEY:			0001112325
		IRS NUMBER:				411930193
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		1200 IDS CENTER
		STREET 2:		80 SOUTH EIGHTH STREET
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55402
		BUSINESS PHONE:		55402

	MAIL ADDRESS:	
		STREET 1:		1200 IDS CENTER
		STREET 2:		80 SOUTH EIGHTH STREET
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55402
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>g13ccmpamend3.txt
<DESCRIPTION>CABOT MICROELECTRONICS CORP 13G AMENDMENT #3
<TEXT>
Document 1 - file: g13ccmpamend3.txt

</DOCUMENT>
</SEC-DOCUMENT>