Mary C. Henry - 05 Oct 2026 Form 4 Insider Report for A10 Networks, Inc. (ATEN)

Reporting relationship: Director
Issuer ticker: ATEN
Reported as of: 05 Oct 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 07 Oct 2026, 16:06:40 UTC
Source filing: View source filing
Reporting owner signature: /s/ Jill Osato, as Attorney-in-Fact

Filing notes and source

Key filing fact

Mary C. Henry filed Form 4 for A10 Networks, Inc. (ATEN) on 07 Oct 2026.

Key facts

This page summarizes Mary C. Henry's Form 4 filing for A10 Networks, Inc. (ATEN).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 07 Oct 2026, 16:06.

Change

No earlier filing in this sequence is available for direct comparison.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001784794 Primary reporting owner

Henry Mary C

Relationship: Director
Address: C/O A10 NETWORKS, 2300 ORCHARD PARKWAY, SAN JOSE
Signature: /s/ Jill Osato, as Attorney-in-Fact
Signature date: 07 Oct 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ATEN transaction

Common Stock

Award

Transaction value
Shares: +7,981
Change %
Price: $0.000000^*
Shares after: 7,981
Date: 05 Oct 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote 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 (10/5/2026), provided that the Reporting Person continues to serve through each vesting date.