| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Gianoni Michael P | Director | C/O TERADATA CORPORATION, 17095 VIA DEL CAMPO, SAN DIEGO | /s/ Juliet C. Shadoan, Attorney-in-fact for Michael P. Gianoni | 25 Feb 2026 | 0001365837 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | TDC | Common Stock | Sale | $749,125 | -25,000 | -44% | $29.96 | 31,523 | 24 Feb 2026 | Direct |