| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Acevedo Christopher P. | Chief Financial Officer | C/O OS THERAPIES INCORPORATED, 115 PULLMAN CROSSING ROAD, SUITE 103, GRASONVILLE | /s/ Christopher P. Acevedo | 19 Dec 2025 | 0002010225 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | OSTX | Common Stock | 109,375 | 21 Oct 2025 | Direct |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OSTX | Stock options (right to buy) | Award | $0 | +200,000 | $0.000000 | 200,000 | 21 Oct 2025 | Common Stock | 200,000 | $1.80 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | On October 21, 2025, the reporting person was granted options to purchase 200,000 shares of the issuer's common stock pursuant to the terms and conditions of a stock option award agreement. These options vest in full on the one-year anniversary of the date of grant, provided that the reporting person is serving as an employee of the issuer on such date. |