X0306 4 2020-05-14 0 0001350653 Alphatec Holdings, Inc. ATEC 0001449439 Black Jeffrey G. C/O ALPHATEC SPINE, INC. 5818 EL CAMINO REAL CARLSBAD CA 92008 0 1 0 0 EVP & CFO Common Stock 2020-05-14 4 F 0 23774 4.06 D 666699 D Common Stock 49874 I By IRA Shares withheld by issuer to satisfy tax withholding obligations of reporting person resulting from vesting of restricted stock units. /s/ Jeffrey G. Black 2020-05-15