| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Trivedi Dhrupad | Chief Executive Officer, Director | C/O A10 NETWORKS, INC., 2300 ORCHARD PARKWAY, SAN JOSE | /s/ Jill Osato, Attorney-in-fact | 03 Feb 2026 | 0001570462 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ATEN | Common Stock | Tax liability | $176,179 | -10,102 | -1.3% | $17.44 | 752,287 | 31 Jan 2026 | Direct | F1 |
| transaction | ATEN | Common Stock | Tax liability | $1,080,321 | -61,945 | -8.2% | $17.44 | 690,342 | 01 Feb 2026 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | Shares automatically withheld, on a non-discretionary basis, for tax purposes related to performance-based restricted stock units granted on February 21, 2023, which vested on January 31, 2026. |
| F2 | Shares automatically withheld, on a non-discretionary basis, for tax purposes related to restricted stock units granted on February 21, 2023, January 30, 2024 and February 6, 2025, each of which vested on February 1, 2026. |