144 0001188264 XXXXXXXX LIVE 0001350653 Alphatec Holdings, Inc. 000-52024 1950 CAMINO VIA ROBLE CARLSBAD CA 92008 760-431-9286 MCGINNIS KAREN K Director COMMON THE CHARLES SCHWAB CORPORATION

3000 Schwab Way Westlake TX 76262

6050 48460.50 153789305 06/11/2026 NASDAQ COMMON 06/16/2021 VESTING RSU's ISSUER N 6050 06/16/2021 N/A Y FULL ACCOUNT TITLE: R MCGINNIS & K MCGINNIS TTEE, MCGINNIS FAMILY TRUST. 06/11/2026 11/25/2025 KAREN K. MCGINNIS