<SEC-DOCUMENT>0001280263-23-000019.txt : 20230317
<SEC-HEADER>0001280263-23-000019.hdr.sgml : 20230317
<ACCEPTANCE-DATETIME>20230317205246
ACCESSION NUMBER:		0001280263-23-000019
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20230315
FILED AS OF DATE:		20230317
DATE AS OF CHANGE:		20230317

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Ju Chi-Hong
		CENTRAL INDEX KEY:			0001882831

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35667
		FILM NUMBER:		23744690

	MAIL ADDRESS:	
		STREET 1:		3101 JAY STREET
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95054

ISSUER:		

	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

	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>
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    <footnotes>
        <footnote id="F1">Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares.</footnote>
        <footnote id="F2">Includes 191 shares acquired under the Company's employee stock purchase plan on March 15, 2023.</footnote>
        <footnote id="F3">Shares sold to pay tax obligations resulting from the vesting of restricted stock units.</footnote>
        <footnote id="F4">On March 25, 2020, reporting person was granted a performance-based RSU award covering a target number of ordinary shares (the &quot;Target RSU Number&quot;).  Pursuant to time-based vesting requirements, the award would vest in full on March 15, 2023, subject to continued service requirements through such date.  In addition, the number of shares subject to the award could be increased or decreased by up to 100% of the Target RSU Number, based on attainment of specified levels of the Company's total stockholder return over the period of February 1, 2020 through January 31, 2023 (the &quot;TSR Period&quot;). As a result of the Company's TSR performance over the TSR Period, the number of shares eligible to vest was 69.78% of the Target RSU Number.</footnote>
        <footnote id="F5">The restricted stock units vest at the rate of 1/12 per quarter commencing on March 15, 2020.</footnote>
        <footnote id="F6">The restricted stock units vest at the rate of 1/12 per quarter commencing on March 15, 2021.</footnote>
        <footnote id="F7">The restricted stock units vest at the rate of 1/12 per quarter commencing on March 15, 2022.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: /s/ Michael Morehead, Attorney-in-Fact For: Chi-Hong Ju</signatureName>
        <signatureDate>2023-03-17</signatureDate>
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</SEC-DOCUMENT>
