<SEC-DOCUMENT>0001193125-18-103328-index.html : 20180330
<SEC-HEADER>0001193125-18-103328.hdr.sgml : 20180330
<ACCEPTANCE-DATETIME>20180330160255
ACCESSION NUMBER:		0001193125-18-103328
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20180330
DATE AS OF CHANGE:		20180330
EFFECTIVENESS DATE:		20180330

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AMBARELLA INC
		CENTRAL INDEX KEY:			0001280263
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				980459628
		FISCAL YEAR END:			0131

	FILING VALUES:
		FORM TYPE:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-224052
		FILM NUMBER:		18726165

	BUSINESS ADDRESS:	
		STREET 1:		3101 JAY STREET
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95054
		BUSINESS PHONE:		408-734-8888

	MAIL ADDRESS:	
		STREET 1:		3101 JAY STREET
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95054
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-8
<SEQUENCE>1
<FILENAME>d540497ds8.htm
<DESCRIPTION>S-8
<TEXT>
Document 1 - file: d540497ds8.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>d540497dex51.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 2 - file: d540497dex51.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>d540497dex231.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 3 - file: d540497dex231.htm

</DOCUMENT>
</SEC-DOCUMENT>