Updated Jul 16, 2026 · Last SEC filing 2026-07-06
A10 Networks, Inc. (ATEN) has filed 12 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-06. 4 Form 8-K material event filings were reported by ATEN in the last 90 days. 3 Form 144 notices of proposed sale were filed for ATEN stock. InsiderAlpha tracks every ATEN SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Computer Communications Equipment (SIC 3576) |
|---|---|
| SEC CIK | 0001580808 |
| Form 4 filings (90d) | 12 |
|---|---|
| Form 8-K filings (90d) | 4 |
| Form 144 notices (90d) | 3 |
| Latest Form 4 filing | 2026-07-06 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Weber Robert Scott | General Counsel | F — Tax withholding / forfeiture | 1.9K | $36.30 | $69K | SEC | |
| Trivedi Dhrupad | Chief Executive Officer | F — Tax withholding / forfeiture | 32.9K | $27.00 | $887K | SEC | |
| Caron Michelle Elizabeth | Chief Financial Officer | F — Tax withholding / forfeiture | 748 | $27.00 | $20K | SEC | |
| Weber Robert Scott | General Counsel | F — Tax withholding / forfeiture | 1.9K | $27.00 | $52K | SEC | |
| Trivedi Dhrupad | Chief Executive Officer | M — Option exercise | 63.4K | $0.00 | — | SEC | |
| Weber Robert Scott | General Counsel | M — Option exercise | 3.7K | $0.00 | — | SEC | |
| Caron Michelle Elizabeth | Chief Financial Officer | M — Option exercise | 3.0K | $0.00 | — | SEC | |
| Trivedi Dhrupad | Chief Executive Officer | M — Option exercise | 65.8K | $0.00 | — | SEC | |
| Weber Robert Scott | General Counsel | M — Option exercise | 3.9K | $0.00 | — | SEC | |
| Caron Michelle Elizabeth | Chief Financial Officer | F — Tax withholding / forfeiture | 3.0K | $27.13 | $81K | SEC | |
| Trivedi Dhrupad | Chief Executive Officer | F — Tax withholding / forfeiture | 32.9K | $27.13 | $891K | SEC | |
| Weber Robert Scott | General Counsel | F — Tax withholding / forfeiture | 1.9K | $27.13 | $52K | SEC | |
| Caron Michelle Elizabeth | Chief Financial Officer | M — Option exercise | 3.0K | $0.00 | — | SEC | |
| Trivedi Dhrupad | Chief Executive Officer | M — Option exercise | 65.8K | $0.00 | — | SEC | |
| Caron Michelle Elizabeth | Chief Financial Officer | M — Option exercise | 13.7K | $0.00 | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for A10 Networks, Inc. (ATEN). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Weber Robert Scott | 11 | $173K |
| Trivedi Dhrupad | 10 | $1.78M |
| Caron Michelle Elizabeth | 8 | $101K |
| Singer Eric | 2 | $672K |
| CHUNG PETER Y | 1 | — |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in ATEN insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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