Brian Becker - Dec 26, 2024 Form 4 Insider Report for A10 Networks, Inc. (ATEN)

Role: Chief Financial Officer
Signature: /s/ Jill Osato, Attorney-in-fact
Stock symbol: ATEN
Transactions as of: Dec 26, 2024
Transactions value $: -$60,531
Form type: 4
Date filed: 12/30/2024, 08:11 PM
Previous filing: Nov 29, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ATEN	Common Stock	Options Exercise	$0	+12.7K	+38.92%	$0.00	45.3K	Dec 26, 2024	Direct	F1
transaction	ATEN	Common Stock	Tax liability	-$60.5K	-3.22K	-7.1%	$18.81	42.1K	Dec 26, 2024	Direct	F2

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	Options Exercise	$0	-12.7K	-50%	$0.00	12.7K	Dec 26, 2024	Common Stock	12.7K		Direct	F1

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

Explanation of Responses:

Id	Content
F1	Performance-Based Restricted Stock Units were previously reported on January 31, 2024, 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 30, 2024 and January 30, 2028. The first achievement date occurred on December 13, 2024, as certified by the compensation committee of ATEN, resulting in 12,703 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on December 26, 2024 and an additional one-fourth (1/4) on each of the first and second anniversaries of December 13, 2024, subject to continued employment. These shares are reflected on Table I.
F2	Shares automatically withheld, on a non-discretionary basis, for tax purposes related to January 30, 2024 performance restricted stock unit grant that vested on December 26, 2024.

Content

Performance-Based Restricted Stock Units were previously reported on January 31, 2024, 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 30, 2024 and January 30, 2028. The first achievement date occurred on December 13, 2024, as certified by the compensation committee of ATEN, resulting in 12,703 units meeting the appropriate performance-based conditions. However, these shares remain subject to time-based vesting conditions and will therefore vest as to one-half (1/2) on December 26, 2024 and an additional one-fourth (1/4) on each of the first and second anniversaries of December 13, 2024, subject to continued employment. These shares are reflected on Table I.

Shares automatically withheld, on a non-discretionary basis, for tax purposes related to January 30, 2024 performance restricted stock unit grant that vested on December 26, 2024.