Dhrupad Trivedi - 15 May 2026 Form 4/A - Amendment Insider Report for A10 Networks, Inc. (ATEN)

Reporting relationship: Chief Executive Officer, Director
Issuer ticker: ATEN
Reported as of: 15 May 2026
Net transaction value: $0
SEC form: 4/A - Amendment
Accepted by SEC: 15 May 2026, 19:18:51 UTC
Original report date: 15 May 2026
Prior SEC filing: 15 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Jill Osato, Attorney-in-fact

Key filing fact

Dhrupad Trivedi filed Form 4/A - Amendment for A10 Networks, Inc. (ATEN) on 15 May 2026.

Key facts

This page summarizes Dhrupad Trivedi's Form 4/A - Amendment filing for A10 Networks, Inc. (ATEN).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 15 May 2026, 19:18.

Change

Previous filing in this sequence was filed on 15 May 2026.
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/A - Amendment disclosures.

View source filing

Reporting Owners (1)

CIK 0001570462 Primary reporting owner

Trivedi Dhrupad

Relationship: Chief Executive Officer, Director
Address: C/O A10 NETWORKS, INC., 2300 ORCHARD PARKWAY, SAN JOSE
Signature: /s/ Jill Osato, Attorney-in-fact
Signature date: 15 May 2026

Reported non-derivative transactions

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

ATEN transaction

Common Stock

Tax liability

Transaction value
Shares: -32,858
Change %: -3.6%
Price: $28.03^*
Shares after: 887,847
Date: 15 May 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

This amendment to the original Form 4 filed on May 15, 2026 is being filed to correct the price reported in Column 4 of Table I in connection with the shares withheld, on a non-discretionary basis, for tax purposes related to a February 6, 2025 performance-based restricted stock unit grant and a February 12, 2026 performance-based restricted stock unti grant, each that vested on May 14, 2026.