<SEC-DOCUMENT>0001193125-15-250360-index.html : 20150710
<SEC-HEADER>0001193125-15-250360.hdr.sgml : 20150710
<ACCEPTANCE-DATETIME>20150710161904
ACCESSION NUMBER:		0001193125-15-250360
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20150710
DATE AS OF CHANGE:		20150710
GROUP MEMBERS:		IVY INVESTMENT MANAGEMENT CO
GROUP MEMBERS:		WADDELL & REED FINANCIAL SERVICES, INC.
GROUP MEMBERS:		WADDELL & REED INVESTMENT MANAGEMENT CO
GROUP MEMBERS:		WADDELL & REED, INC.

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SEMTECH CORP
		CENTRAL INDEX KEY:			0000088941
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				952119684
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0129

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-20525
		FILM NUMBER:		15983883

	BUSINESS ADDRESS:	
		STREET 1:		200 FLYNN ROAD
		CITY:			CAMARILLO
		STATE:			CA
		ZIP:			93012-8790
		BUSINESS PHONE:		8054982111

	MAIL ADDRESS:	
		STREET 1:		200 FLYNN ROAD
		CITY:			CAMARILLO
		STATE:			CA
		ZIP:			93012-8790

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WADDELL & REED FINANCIAL INC
		CENTRAL INDEX KEY:			0001052100
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
		IRS NUMBER:				510261715
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		6300 LAMAR AVE
		CITY:			OVERLAND PARK
		STATE:			KS
		ZIP:			66202-4200
		BUSINESS PHONE:		9132362000

	MAIL ADDRESS:	
		STREET 1:		PO BOX 29217
		CITY:			SHAWNEE MISSION
		STATE:			KS
		ZIP:			66201-9217
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>d66538dsc13ga.htm
<DESCRIPTION>SEMTECH CORP.
<TEXT>
Document 1 - file: d66538dsc13ga.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1
<SEQUENCE>2
<FILENAME>d66538dex1.htm
<DESCRIPTION>JOINT FILING AGREEMENT
<TEXT>
Document 2 - file: d66538dex1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-2
<SEQUENCE>3
<FILENAME>d66538dex2.htm
<DESCRIPTION>IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY
<TEXT>
Document 3 - file: d66538dex2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-3
<SEQUENCE>4
<FILENAME>d66538dex3.htm
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
Document 4 - file: d66538dex3.htm

</DOCUMENT>
</SEC-DOCUMENT>