| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| CARREL MICHAEL H | President, CEO, & Director, Director | 7555 INNOVATION WAY, MASON | /s/ Michael H. Carrel | 12 Aug 2025 | 0001230584 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ATRC | Common Stock | Gift | $0 | -10,000 | -1.4% | $0.000000 | 697,377 | 08 Aug 2025 | Direct | F1 |
| holding | ATRC | Common Stock | 9,310 | 08 Aug 2025 | Held by reporting person's children | F2 | |||||
| holding | ATRC | Common Stock | 2,250 | 08 Aug 2025 | Held by reporting person's parents | F2 |
| Id | Content |
|---|---|
| F1 | No consideration was received in connection with this charitable gift. |
| F2 | The reporting person disclaims beneficial ownership of these securities, except as to his pecuniary interest therein. |