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Filing Details

Accession Number:: 0001179110-21-010804
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2021-12-10 06:05:25
Reporting Period:: 2021-12-07

Accepted Time:: 2021-12-10 06:05:25
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1580808	A10 Networks Inc.	ATEN	()	DE

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
830588	P L Partners Summit	222 Berkeley Street 18Th Floor Boston MA 02116	No	No	No	Yes
1018067	J Martin Mannion	C/O Summit Partners 222 Berkeley Street, 18Th Floor Boston MA 02116	Yes	No	Yes	No
1435565	Summit Investors I, Llc	222 Berkeley Street, 18Th Floor Boston MA 02116	Yes	No	Yes	No
1494616	Summit Investors I (Uk), L.p.	222 Berkeley Street, 18Th Floor Boston MA 02116	Yes	No	Yes	No
1507545	Summit Investors Management, Llc	222 Berkeley Street, 18Th Floor Boston MA 02116	No	No	No	Yes
1514386	Summit Partners Growth Equity Fund Viii-A, L.p.	222 Berkeley Street, 18Th Floor Boston MA 02116	Yes	No	Yes	No
1514388	Summit Partners Growth Equity Fund Viii-B, L.p.	222 Berkeley Street, 18Th Floor Boston MA 02116	Yes	No	Yes	No
1593029	Summit Partners Ge Viii, L.p.	222 Berkeley Street, 18Th Floor Boston MA 02116	Yes	No	No	Yes
1593948	Summit Partners Ge Viii, Llc	222 Berkeley Street, 18Th Floor Boston MA 02116	Yes	No	No	Yes

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2021-12-07	700,000	$15.05	8,877,890	No	4	S	Indirect	See Footnotes.

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	See Footnotes.

Footnotes

The Common Stock sold as follows: 510,318 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 186,436 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 2,984 shares in the name of Summit Investors I, LLC; 262 shares in the name of Summit Investors I (UK), L.P.
The Common Stock held as follows: 6,362,818 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 2,324,553 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 37,202 shares in the name of Summit Investors I, LLC; 3,273 shares in the name of Summit Investors I (UK), L.P.; 150,044 shares (including shares underlying RSUs) in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P.
Summit Partners, L.P. is the managing member of Summit Partners GE VIII, LLC, which is the general partner of Summit Partners GE VIII, L.P., which is the general partner of each of Summit Partners Growth Equity Fund VIII-A, L.P. and Summit Partners Growth Equity Fund VIII-B, L.P. Summit Master Company, LLC is the managing member of Summit Investors Management, LLC, which is the manager of Summit Investors I, LLC and the general partner of Summit Investors I (UK), L.P. Summit Partners GE VIII, LLC, as the general partner of Summit Partners GE VIII, L.P., and Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC has each delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its Investment Committee responsible for voting and investment decisions with respect to the Company.
Summit Partners, L.P., through a two-person Investment Committee responsible for voting and investment decisions with respect to the Company, currently composed of Martin J. Mannion and Mr. Chung, has voting and dispositive authority over the shares of Common Stock held by each of the entities described in the foregoing footnotes (2) and (3) and therefore may be deemed to beneficially own such shares. In addition, Mr. Chung is a member of Summit Master Company, LLC. Each of the Summit entities, Mr. Mannion and Mr. Chung disclaims beneficial ownership of the shares of Common Stock (including shares underlying RSUs) reported herein, except to the extent of their pecuniary interest therein.