| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| ERICKSON THOMAS W | Director | 333 THREE D SYSTEMS CIRCLE, ROCK HILL | Andrew WB Wright, Attorney-in-Fact for Thomas W. Erickson | 13 Jun 2025 | 0001120226 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | DDD | Common Stock | Award | $0 | +29,069 | +9.1% | $0.000000 | 349,447 | 11 Jun 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Shares were awarded to the Reporting Person under the Issuer's 2015 Incentive Plan pursuant to the Non-Employee Director Compensation Policy. |