A10 Networks, Inc. — Director's Dealing 2017

Dec 9, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: A10 Networks, Inc. (ATEN)
CIK: 0001580808
Period of Report: 2017-12-06

Reporting Person: Reiss Gunter (VP Worldwide Mktg & Bus Dev)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-12-06	Common Stock	A	30000	$0.00	Acquired	134929	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-12-06	Employee Stock Option (right to buy)	$7.70	A	75000	Acquired	2027-12-06	Common Stock (75000)	Direct

Footnotes

F1: Each share is represented by a Restricted Stock Unit ("RSU"). One-fourth (1/4) of the total RSUs will vest on each of the first four (4) anniversaries of the Vesting Commencement Date (11/5/2017), provided that the Reporting Person continues to serve through each vesting date.

F2: One-fourth (1/4) of the shares subject to the option will vest on the first anniversary of the Vesting Commencement Date (10/23/2017), and the remaining shares will vest in equal monthly installments over the following 36 months, provided that the Reporting Person continues to serve through each vesting date.