    <SEC-DOCUMENT>0001140361-22-018659-index.html : 20220511
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    <ACCEPTANCE-DATETIME>20220511161955
    ACCESSION NUMBER:		0001140361-22-018659
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		3
    FILED AS OF DATE:		20220511
    DATE AS OF CHANGE:		20220511

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			A10 Networks, Inc.
    		CENTRAL INDEX KEY:			0001580808
    		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER COMMUNICATIONS EQUIPMENT [3576]
    		IRS NUMBER:				201446869
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-36343
    		FILM NUMBER:		22914007

    	BUSINESS ADDRESS:
    		STREET 1:		2300 ORCHARD PKWY
    		CITY:			SAN JOSE
    		STATE:			CA
    		ZIP:			95131
    		BUSINESS PHONE:		(408) 325-8668

    	MAIL ADDRESS:
    		STREET 1:		2300 ORCHARD PKWY
    		CITY:			SAN JOSE
    		STATE:			CA
    		ZIP:			95131
    </SEC-HEADER>
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    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>ny20002414x3_defa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: ny20002414x3_defa14a.htm

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    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>ny20002414x3_nc1.jpg
    <TEXT>
    Document 2 - file: ny20002414x3_nc1.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>ny20002414x3_nc2.jpg
    <TEXT>
    Document 3 - file: ny20002414x3_nc2.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>