| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Demski David M | Director | C/O ALPHATEC SPINE, INC., 1950 CAMINO VIDA ROBLE, CARLSBAD | /s/ Tyson E. Marshall, Attorney-in-Fact | 12 Dec 2025 | 0001555392 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ATEC | Common Stock | Sale | $636,000 | -30,000 | -7% | $21.20 | 399,623 | 11 Dec 2025 | Direct |