A10 Networks, Inc. — Director's Dealing 2014

May 29, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: A10 Networks, Inc. (ATEN)
CIK: 0001580808
Period of Report: 2014-05-27

Reporting Person: CHEN LEE (Director, CEO and President, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-05-27	Common Stock	P	3000	$10.8401	Acquired	3000	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	10566222	Direct

Footnotes

F1: This is the weighted average price of the purchased shares, which ranged from $10.78 to $10.85 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares purchased at each separate price within the range set forth in this Form 4.

F2: Shares held of record by the U/A DTD 07/25/2000 Lee Chen Family Trust, for which the Reporting Person serves as a trustee.