X0306 4 2020-08-04 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 2020-08-04 4 S 0 8929 5.03 D 657770 D Common Stock 49874 I By IRA The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2019 to satisfy certain tax withholding obligations of the reporting person resulting from the vesting of previously granted restricted stock unit awards. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.96 to $5.07, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. /s/ Jeffrey G. Black 2020-08-06