<SEC-DOCUMENT>0001193125-20-016972-index.html : 20200128
<SEC-HEADER>0001193125-20-016972.hdr.sgml : 20200128
<ACCEPTANCE-DATETIME>20200128162003
ACCESSION NUMBER:		0001193125-20-016972
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20200128
DATE AS OF CHANGE:		20200128
GROUP MEMBERS:		MARTIN J. MANNION
GROUP MEMBERS:		PETER Y. CHUNG
GROUP MEMBERS:		SUMMIT INVESTORS I (UK), L.P.
GROUP MEMBERS:		SUMMIT INVESTORS I, LLC
GROUP MEMBERS:		SUMMIT INVESTORS MANAGEMENT, LLC
GROUP MEMBERS:		SUMMIT MASTER COMPANY, LLC
GROUP MEMBERS:		SUMMIT PARTNERS GE VIII, L.P.
GROUP MEMBERS:		SUMMIT PARTNERS GE VIII, LLC
GROUP MEMBERS:		SUMMIT PARTNERS GROWTH EQUITY FUND VIII-A, L.P.
GROUP MEMBERS:		SUMMIT PARTNERS GROWTH EQUITY FUND VIII-B, L.P.

SUBJECT COMPANY:	

	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:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-88506
		FILM NUMBER:		20554485

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SUMMIT PARTNERS L P
		CENTRAL INDEX KEY:			0000830588
		IRS NUMBER:				043478657
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		222 BERKELEY STREET
		STREET 2:		18TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		6178241094

	MAIL ADDRESS:	
		STREET 1:		222 BERKELEY STREET
		STREET 2:		18TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>d857180dsc13ga.htm
<DESCRIPTION>SC 13G/A
<TEXT>
Document 1 - file: d857180dsc13ga.htm

</DOCUMENT>
</SEC-DOCUMENT>