Karen S. Thomas - Jan 30, 2024 Form 4 Insider Report for A10 Networks, Inc. (ATEN)

Role: EVP, Worldwide Sales and Mkt
Signature: /s/ Jill Osato, Attorney-in-fact
Stock symbol: ATEN
Transactions as of: Jan 30, 2024
Transactions value $: $0
Form type: 4
Date filed: 1/31/2024, 04:12 PM
Previous filing: Sep 22, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ATEN	Common Stock	Award	$0	+4.42K	+17.1%	$0.00	30.3K	Jan 30, 2024	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ATEN	Performance-based Restricted Stock Units	Award	$0	+6.63K		$0.00	6.63K	Jan 30, 2024	Common Stock	6.63K		Direct	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
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 the Vesting Commencement Date (2/1/2024), provided that the Reporting Person continues to serve through each such vesting date.
F2	Each share is represented by a Performance-based Restricted Stock Unit ("PSU").
F3	Grant of 6,627 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 period between January 30, 2024 and January 30, 2028. Vesting is subject to continued employment with the Company through the applicable vesting date, which occurs in three equal annual installments beginning on the date of achievement of the milestone and the balance on the first and second anniversaries of the corresponding performance milestone.