Robert Scott Weber - 11 Aug 2026 Form 4 Insider Report for A10 Networks, Inc. (ATEN)

Reporting relationship: General Counsel
Issuer ticker: ATEN
Reported as of: 11 Aug 2026
Net transaction value: -$392,436
SEC form: 4
Accepted by SEC: 12 Aug 2026, 16:25:46 UTC
Prior SEC filing: 06 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/ Jill Osato, Attorney-in-fact

Key filing fact

Robert Scott Weber filed Form 4 for A10 Networks, Inc. (ATEN) on 12 Aug 2026.

Key facts

This page summarizes Robert Scott Weber's Form 4 filing for A10 Networks, Inc. (ATEN).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 12 Aug 2026, 16:25.

Change

Previous filing in this sequence was filed on 06 Jul 2026.
Current net transaction value: -$392,436.

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 0001936128 Primary reporting owner

Weber Robert Scott

Relationship: General Counsel
Address: C/O A10 NETWORKS, INC., 2300 ORCHARD PARKWAY, SAN JOSE
Signature: /s/ Jill Osato, Attorney-in-fact
Signature date: 12 Aug 2026

Reported non-derivative transactions

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

ATEN transaction

Common Stock

Sale

Transaction value: $392,436
Shares: -14,086
Change %: -22%
Price: $27.86
Shares after: 50,586
Date: 11 Aug 2026
Ownership: Direct
Footnotes: F1, F2

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

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 2 footnotes

Footnote F1

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 9, 2026.

Footnote F2

This is the weighted average price of the shares sold, which ranged from $27.55 to $28.46 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.