A10 Networks, Inc. — Director's Dealing 2022

Jan 27, 2022

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: A10 Networks, Inc. (ATEN)
CIK: 0001580808
Period of Report: 2022-01-25

Reporting Person: Becker Brian (Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2022-01-25	Common Stock	A	9395	—	Acquired	75417	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2022-01-25	Performance-based Restricted Stock Units	$0.0	A	21920	Acquired	2026-01-25	Common Stock (21920.0)	Direct

Footnotes

F1: Each share is represented by a Restricted Stock Unit ("RSU"). One-third (1/3) of the total RSUs will vest on each of the first three (3) anniversaries of February 1, 2022, provided that the Reporting Person continues to serve through each vesting date.

F2: Each share is represented by a Performance-based Restricted Stock Unit ("PSU")

F3: Grant of 21,920 Performance-Based Restricted Stock Units, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between January 25, 2022 and January 25, 2026 (each, a "Performance Milestone"). Upon achievement of a Performance Milestone, vesting is subject to continued employment with the Company through the applicable vesting date, which occurs in three equal installments with the first vesting to occur within thirty (30) days of achievement of the Performance Milestone and an additional one-third (1/3) on each of the first and second anniversaries of the date of achievement of the corresponding Performance Milestone.