| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Doraiswamy Vinayak | Chief Scientific Officer | 7555 INNOVATION WAY, MASON | /s/ Vinayak S. Doraiswamy | 30 May 2025 | 0001862458 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ATRC | Common Stock | Sale | $83,600 | -2,500 | -3.3% | $33.44 | 73,550 | 28 May 2025 | Direct |