A10 Networks, Inc. — Director's Dealing 2014

Dec 24, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: A10 Networks, Inc. (ATEN)
CIK: 0001580808
Period of Report: 2014-12-22

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

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-12-22	Performance Restricted Stock Units	$	A	80000	Acquired		Common Stock (80000)	Direct

Footnotes

F1: Each restricted stock unit represents a contingent right to receive one share of A10 Networks, Inc. common stock.

F2: This Performance Restricted Stock Unit award vests within the four year anniversary of the grant based on the achievement of certain market-related performance criteria. The number of shares reported in this Form 4 reflects the minimum number that may be acquired by the Reporting Person. The Reporting Person may acquire shares equal to an additional 200% of the minimum number depending on the potential achievement of market-related performance criteria.