A10 Networks, Inc. — Director's Dealing 2017

Oct 27, 2017

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: A10 Networks, Inc. (ATEN)
CIK: 0001580808
Period of Report: 2017-10-23

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

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	109642	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option (right to buy)	$4.40	2024-12-22	Common Stock (40000)		Direct

Footnotes

F1: Includes 76,337 shares represented by Restricted Stock Units (each, an "RSU") that are subject to vesting, provided that the Reporting Person is a Service Provider through each vesting date. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement.

F2: One forty-eighth (1/48) of the shares subject to the option vest monthly, provided that the Reporting Person continues to serve through each vesting date.