<SEC-DOCUMENT>0001193125-21-145236-index.html : 20210430
<SEC-HEADER>0001193125-21-145236.hdr.sgml : 20210430
<ACCEPTANCE-DATETIME>20210430163033
ACCESSION NUMBER:		0001193125-21-145236
CONFORMED SUBMISSION TYPE:	NT 20-F
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20201231
FILED AS OF DATE:		20210430
DATE AS OF CHANGE:		20210430
EFFECTIVENESS DATE:		20210430

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Silicon Motion Technology CORP
		CENTRAL INDEX KEY:			0001329394
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		NT 20-F
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-51380
		FILM NUMBER:		21878623

	BUSINESS ADDRESS:	
		STREET 1:		UNIT B,16/F, CENTRE 600,82 KING LAM ST,
		STREET 2:		CHEUNG SHA WAN
		CITY:			KOWLOON
		STATE:			K3
		ZIP:			000
		BUSINESS PHONE:		886-3-552-6888

	MAIL ADDRESS:	
		STREET 1:		UNIT B,16/F, CENTRE 600,82 KING LAM ST,
		STREET 2:		CHEUNG SHA WAN
		CITY:			KOWLOON
		STATE:			K3
		ZIP:			000
</SEC-HEADER>
<DOCUMENT>
<TYPE>NT 20-F
<SEQUENCE>1
<FILENAME>d141088dnt20f.htm
<DESCRIPTION>NT 20-F
<TEXT>
Document 1 - file: d141088dnt20f.htm

</DOCUMENT>
</SEC-DOCUMENT>