🕵️ A10 Networks, Inc. ($ATEN)
SEC insider & ownership activity, last 12 months · CIK 1580808 · every row links its SEC filing
Over the last 12 months insiders sold $3.2M with no open-market buying against it. Trivedi Dhrupad sold $2.1M through a 10b5-1 trading plan in 3 lots (Feb). No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 4 sellers, $3.2M (6 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Trivedi Dhrupad | 0 | – | 3 | $2.1M | Feb 13, 2026 |
| Singer Eric | 0 | – | 1 | $672K | May 5, 2026 |
| Weber Robert Scott | 0 | – | 1 | $392K | Aug 11, 2026 |
| Wolf Dana Elizabeth | 0 | – | 1 | $68K | Aug 25, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| First Trust Portfolios L.P. | 6.7% | 13G | Jul 30, 2026 | filing ↗ | |
| First Trust Advisors L.P. | 6.7% | 13G | Jul 30, 2026 | filing ↗ | |
| The Charger Corporation | 6.7% | 13G | Jul 30, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.1% | 13G | Apr 29, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Dana Elizabeth Wolf | $68K | Aug 25, 2026 | filing ↗ |
| Robert S. Weber | $392K | Aug 11, 2026 | filing ↗ |
| Sheen Khoury | $184K | Jul 2, 2026 | filing ↗ |
| Sheen Khoury | $221K | Jun 10, 2026 | filing ↗ |
| Eric Singer | $672K | May 5, 2026 | filing ↗ |
| Dhrupad Trivedi | $685K | Feb 13, 2026 | filing ↗ |
| Dhrupad Trivedi | $685K | Feb 12, 2026 | filing ↗ |
| Dhrupad Trivedi | $690K | Feb 11, 2026 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Officer/director changes (5.02) | Sep 9, 2026 | filing ↗ |
| Other events (8.01) | Aug 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 6, 2026 | filing ↗ |
| Earnings (2.02) | Aug 5, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Aug 5, 2026 | filing ↗ |
| Other events (8.01) | Aug 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 5, 2026 | filing ↗ |
| Material agreement (1.01) | Aug 3, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Aug 3, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 3, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 2, 2026 | filing ↗ |
| Earnings (2.02) | Apr 28, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 28, 2026 | filing ↗ |
| Other events (8.01) | Apr 28, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 28, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 27, 2026 | filing ↗ |
| Shareholder vote (5.07) | Apr 22, 2026 | filing ↗ |
| Earnings (2.02) | Feb 4, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 4, 2026 | filing ↗ |
| Other events (8.01) | Feb 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 4, 2026 | filing ↗ |
| Earnings (2.02) | Nov 4, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 4, 2025 | filing ↗ |
| Other events (8.01) | Nov 4, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 4, 2025 | filing ↗ |