| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| CASAMENTO CHARLES J | Director | C/O GT BIOPHARMA, INC., 505 MONTGOMERY STREET, 10TH FLOOR, SAN FRANCISCO | /s/ Charles J. Casamento | 08 Sep 2025 | 0001117167 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | GTBP | Option to purchase Common Stock | Award | $0 | +62,500 | $0.000000 | 62,500 | 04 Sep 2025 | Common Stock | 62,500 | $1.33 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | The options are fully vested and exercisable. |