A10 Networks, Inc. SEC filings ATEN
A10 Networks, Inc. has 910 filings in SEC EDGAR's recent list, going back to Jul 10, 2013. Its latest annual report, Form ARS, was filed on Mar 10, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 6, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 14, 2026 (officer or director change). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 30, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 30, 2026 | — |
| 4 | Insider transaction | Oct 7, 2026 | Oct 5, 2026 |
| 4 | Insider transaction | Oct 7, 2026 | Oct 5, 2026 |
| 3 | Initial insider ownership | Oct 7, 2026 | Oct 5, 2026 |
| 8-K |
Current report
Officer or director change
|
Sep 14, 2026 | Sep 9, 2026 |
| 4 | Insider transaction | Aug 25, 2026 | Aug 25, 2026 |
| 144 | Notice of proposed sale | Aug 25, 2026 | — |
| 4 | Insider transaction | Aug 12, 2026 | Aug 11, 2026 |
| 144 | Notice of proposed sale | Aug 11, 2026 | — |
| 8-K |
Current report
Other events
|
Aug 7, 2026 | Aug 6, 2026 |
| 424B7 | Filing | Aug 7, 2026 | — |
| S-3ASR | Automatic shelf registration | Aug 7, 2026 | — |
| 10-Q | Quarterly report | Aug 6, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Aug 5, 2026 | Aug 5, 2026 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Aug 5, 2026 | Aug 3, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 30, 2026 | — |
| 4 | Insider transaction | Jul 6, 2026 | Jul 6, 2026 |
| 144 | Notice of proposed sale | Jul 2, 2026 | — |
| 144 | Notice of proposed sale | Jun 10, 2026 | — |
| SD | Specialized disclosure (conflict minerals) | May 21, 2026 | — |
| 4/A | Form 4/a | May 15, 2026 | May 15, 2026 |
| 4/A | Form 4/a | May 15, 2026 | May 15, 2026 |
| 4/A | Form 4/a | May 15, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 14, 2026 |
| 8-K |
Current report
Officer or director change
|
May 7, 2026 | May 2, 2026 |
| 10-Q | Quarterly report | May 7, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | May 6, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 6, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 6, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 6, 2026 | May 5, 2026 |
| 144 | Notice of proposed sale | May 5, 2026 | — |
| 8-K |
Current report
Officer or director change
|
May 1, 2026 | Apr 27, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Apr 28, 2026 | Apr 28, 2026 |
| 4 | Insider transaction | Apr 24, 2026 | Apr 22, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Apr 23, 2026 | Apr 22, 2026 |
| 4 | Insider transaction | Apr 23, 2026 | Apr 22, 2026 |
| 4 | Insider transaction | Apr 23, 2026 | Apr 22, 2026 |
| 4 | Insider transaction | Apr 23, 2026 | Apr 22, 2026 |
| DEFA14A | Additional proxy material | Apr 8, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| ARS | Annual report to shareholders | Mar 10, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Mar 10, 2026 | — |
| DEF 14A | Proxy statement | Mar 10, 2026 | Apr 22, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Feb 28, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Feb 28, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 10-K | Annual report | Feb 25, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Feb 13, 2026 | Feb 11, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Feb 12, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Feb 12, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Feb 12, 2026 |
| 144 | Notice of proposed sale | Feb 13, 2026 | — |
| 4 | Insider transaction | Feb 12, 2026 | Feb 10, 2026 |
| 4 | Insider transaction | Feb 12, 2026 | Feb 10, 2026 |
| 144 | Notice of proposed sale | Feb 12, 2026 | — |
| 144 | Notice of proposed sale | Feb 11, 2026 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Feb 4, 2026 | Feb 4, 2026 |
| 4 | Insider transaction | Feb 3, 2026 | Jan 31, 2026 |
| 4 | Insider transaction | Feb 3, 2026 | Jan 31, 2026 |
| 4 | Insider transaction | Jan 16, 2026 | Jan 15, 2026 |
| 4 | Insider transaction | Jan 16, 2026 | Jan 15, 2026 |
| 4 | Insider transaction | Dec 16, 2025 | Dec 15, 2025 |
| 4 | Insider transaction | Dec 16, 2025 | Dec 12, 2025 |
| 10-Q | Quarterly report | Nov 4, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Nov 4, 2025 | Nov 4, 2025 |
| 4 | Insider transaction | Oct 2, 2025 | Sep 30, 2025 |
| 3 | Initial insider ownership | Sep 26, 2025 | Sep 24, 2025 |
| 8-K |
Current report
Officer or director change
|
Sep 5, 2025 | Sep 2, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 18, 2025 |
| 4 | Insider transaction | Aug 14, 2025 | Aug 13, 2025 |
| 144 | Notice of proposed sale | Aug 13, 2025 | — |
| 10-Q | Quarterly report | Aug 5, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Aug 5, 2025 | Aug 5, 2025 |
| 4 | Insider transaction | Jul 15, 2025 | Jul 14, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 9, 2025 | — |
| 4 | Insider transaction | Jul 7, 2025 | Jul 7, 2025 |
| 3 | Initial insider ownership | Jul 2, 2025 | Jun 2, 2025 |
| 4 | Insider transaction | May 28, 2025 | May 27, 2025 |
| 144 | Notice of proposed sale | May 28, 2025 | — |
| SD | Specialized disclosure (conflict minerals) | May 22, 2025 | — |
| S-8 | Employee stock plan registration | May 8, 2025 | — |
| 10-Q | Quarterly report | May 6, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
May 1, 2025 | May 1, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Apr 18, 2025 | Apr 17, 2025 |
| 4 | Insider transaction | Apr 18, 2025 | Apr 17, 2025 |
| 4 | Insider transaction | Apr 18, 2025 | Apr 17, 2025 |
| 4 | Insider transaction | Apr 18, 2025 | Apr 17, 2025 |
| 4 | Insider transaction | Apr 18, 2025 | Apr 17, 2025 |
| DEFA14A | Additional proxy material | Apr 9, 2025 | — |
| 8-K |
Current report
New debt, Unregistered share sale
|
Mar 20, 2025 | Mar 20, 2025 |
| 8-K/A |
Amended current report
Material agreement, New debt, Unregistered share sale, Other events
|
Mar 20, 2025 | Mar 13, 2025 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale, Other events
|
Mar 17, 2025 | Mar 13, 2025 |
| 8-K |
Current report
Other events
|
Mar 12, 2025 | Mar 12, 2025 |
| 4 | Insider transaction | Mar 11, 2025 | Mar 10, 2025 |
| 4 | Insider transaction | Mar 11, 2025 | Mar 10, 2025 |
| 4 | Insider transaction | Mar 11, 2025 | Mar 10, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 6, 2025 | — |
| ARS | Annual report to shareholders | Mar 5, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Mar 5, 2025 | — |
| DEF 14A | Proxy statement | Mar 5, 2025 | Apr 17, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Feb 28, 2025 |
| 144 | Notice of proposed sale | Mar 4, 2025 | — |
| 144 | Notice of proposed sale | Mar 3, 2025 | — |
| 4/A | Form 4/a | Feb 28, 2025 | Feb 14, 2025 |
| 144 | Notice of proposed sale | Feb 28, 2025 | — |
| 10-K | Annual report | Feb 25, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 18, 2025 | Feb 13, 2025 |
| 4 | Insider transaction | Feb 18, 2025 | Feb 13, 2025 |
| 4 | Insider transaction | Feb 18, 2025 | Feb 13, 2025 |
| 4 | Insider transaction | Feb 10, 2025 | Feb 6, 2025 |
| 4 | Insider transaction | Feb 10, 2025 | Feb 6, 2025 |
| 4 | Insider transaction | Feb 10, 2025 | Feb 6, 2025 |
| 144 | Notice of proposed sale | Feb 6, 2025 | — |
| 4 | Insider transaction | Feb 4, 2025 | Feb 3, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Feb 3, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Feb 3, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Feb 4, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Jan 27, 2025 | Jan 23, 2025 |
| 4 | Insider transaction | Jan 27, 2025 | Jan 23, 2025 |
| 4 | Insider transaction | Jan 27, 2025 | Jan 23, 2025 |
| 4 | Insider transaction | Dec 30, 2024 | Dec 26, 2024 |
| 4 | Insider transaction | Dec 30, 2024 | Dec 26, 2024 |
| 4 | Insider transaction | Dec 30, 2024 | Dec 26, 2024 |
| 4 | Insider transaction | Dec 30, 2024 | Dec 26, 2024 |
| 4 | Insider transaction | Dec 9, 2024 | Dec 6, 2024 |
| 4 | Insider transaction | Nov 29, 2024 | Nov 27, 2024 |
| 8-K |
Current report
Officer or director change
|
Nov 22, 2024 | Nov 18, 2024 |
| 4 | Insider transaction | Nov 18, 2024 | Nov 14, 2024 |
| 4 | Insider transaction | Nov 15, 2024 | Nov 13, 2024 |
| 4 | Insider transaction | Nov 13, 2024 | Nov 12, 2024 |
| 144 | Notice of proposed sale | Nov 13, 2024 | — |
| 144 | Notice of proposed sale | Nov 13, 2024 | — |
| 144 | Notice of proposed sale | Nov 13, 2024 | — |
| 144 | Notice of proposed sale | Nov 13, 2024 | — |
| 144 | Notice of proposed sale | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 8, 2024 | — |
| 10-Q | Quarterly report | Nov 7, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Nov 7, 2024 | Nov 7, 2024 |
| 4 | Insider transaction | Sep 9, 2024 | Sep 6, 2024 |
| 4 | Insider transaction | Aug 8, 2024 | Aug 6, 2024 |
| 4 | Insider transaction | Aug 8, 2024 | Aug 6, 2024 |
| 10-Q | Quarterly report | Jul 30, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Jul 30, 2024 | Jul 30, 2024 |
| 4 | Insider transaction | Jul 9, 2024 | Jul 8, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 8, 2024 | — |
| SD | Specialized disclosure (conflict minerals) | May 29, 2024 | — |
| 4 | Insider transaction | May 22, 2024 | May 20, 2024 |
| 144 | Notice of proposed sale | May 20, 2024 | — |
| 144 | Notice of proposed sale | May 20, 2024 | — |
| 144 | Notice of proposed sale | May 20, 2024 | — |
| 144 | Notice of proposed sale | May 20, 2024 | — |
| 4 | Insider transaction | May 10, 2024 | May 9, 2024 |
| 4 | Insider transaction | May 10, 2024 | May 9, 2024 |
| 4 | Insider transaction | May 10, 2024 | May 9, 2024 |
| 4 | Insider transaction | May 10, 2024 | May 9, 2024 |
| 8-K |
Current report
Shareholder vote results
|
May 10, 2024 | May 9, 2024 |
| 10-Q | Quarterly report | May 3, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Apr 30, 2024 | Apr 30, 2024 |
| 144/A | Filing | Apr 23, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Apr 8, 2024 | — |
| ARS | Annual report to shareholders | Mar 27, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Mar 27, 2024 | — |
| DEF 14A | Proxy statement | Mar 27, 2024 | May 9, 2024 |
| 4 | Insider transaction | Mar 14, 2024 | Mar 12, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 10-K/A | Amended annual report | Mar 7, 2024 | Dec 31, 2023 |
| 144 | Notice of proposed sale | Mar 5, 2024 | — |
| 10-K | Annual report | Feb 29, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Feb 15, 2024 | Feb 13, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| 144 | Notice of proposed sale | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 7, 2024 | — |
| 4 | Insider transaction | Feb 6, 2024 | Feb 2, 2024 |
| 4 | Insider transaction | Feb 6, 2024 | Feb 2, 2024 |
| 4 | Insider transaction | Feb 6, 2024 | Feb 2, 2024 |
| 4/A | Form 4/a | Feb 6, 2024 | Jan 30, 2024 |
| 144 | Notice of proposed sale | Feb 6, 2024 | — |
| 144 | Notice of proposed sale | Feb 6, 2024 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Feb 6, 2024 | Feb 6, 2024 |
| 144 | Notice of proposed sale | Feb 2, 2024 | — |
| 144 | Notice of proposed sale | Feb 2, 2024 | — |
| 144 | Notice of proposed sale | Feb 2, 2024 | — |
| 4 | Insider transaction | Jan 31, 2024 | Jan 29, 2024 |
| 4 | Insider transaction | Jan 31, 2024 | Jan 30, 2024 |
| 4 | Insider transaction | Jan 31, 2024 | Jan 30, 2024 |
| 4 | Insider transaction | Jan 31, 2024 | Jan 30, 2024 |
| 144 | Notice of proposed sale | Jan 29, 2024 | — |
| 4 | Insider transaction | Jan 26, 2024 | Jan 24, 2024 |
| 4 | Insider transaction | Jan 26, 2024 | Jan 24, 2024 |
| 144 | Notice of proposed sale | Jan 24, 2024 | — |
| 144 | Notice of proposed sale | Jan 24, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 19, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 12, 2024 | — |
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Company profile
- Industry
- Computer Communications Equipment (SIC 3576)
- Listed as
- ATEN (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- San Jose, CA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1580808
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.