| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| CARREL MICHAEL H | President, CEO, & Director, Director | 7555 INNOVATION WAY, MASON | /s/ Michael H. Carrel | 2025-11-17 | 0001230584 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ATRC | Common Stock | Gift | $0 | -6K | -0.86% | $0.00 | 691K | Nov 13, 2025 | Direct | F1 |
| holding | ATRC | Common Stock | 9.31K | Nov 13, 2025 | Held by reporting person's children | F2 | |||||
| holding | ATRC | Common Stock | 2.25K | Nov 13, 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. |