X0306 4 2023-01-25 0 0001350653 Alphatec Holdings, Inc. ATEC 0001733085 L-5 Healthcare Partners, LLC C/O LS POWER DEVELOPMENT, LLC 1700 BROADWAY, 35TH FLOOR NEW YORK NY 10019 0 0 1 1 Director by deputization 0001427470 Segal Paul C/O LS POWER DEVELOPMENT, LLC 1700 BROADWAY, 35TH FLOOR NEW YORK NY 10019 0 0 1 1 Director by deputization Common Stock 2023-01-25 4 M 0 2000000 3.50 A 11530346 D Common Stock 2023-01-25 4 F 0 532513 13.14 D 10997833 D Warrants to Purchase Common Stock 3.50 2023-01-25 4 X 0 2000000 0 D 2018-05-17 2023-05-17 Common Stock 2000000 2346032 D Each of Andy Barnett and Evan Bakst serve on the board of directors of the issuer as a representative of the reporting persons. As a result, each reporting person herein may be deemed a director by deputization for the purposes of Section 16 of the Exchange Act. Paul Segal directly (through his position as manager of L-5 Healthcare Partners, LLC ("L-5")) may be deemed to control L-5 and to have shared voting and investment power with respect to the shares beneficially owned by L-5. As such, Mr. Segal may be deemed to have shared beneficial ownership of the shares beneficially owned by L-5. Mr. Segal, however, disclaims beneficial ownership of such shares, except to the extent of his indirect pecuniary interest therein. Represents a "cashless exercise" of outstanding warrants. The reporting person received 1,467,487 shares of Common Stock on cashless exercise of warrants to purchase 2,000,000 shares of Common Stock. The Company withheld 532,513 shares of Common Stock underlying the warrants for payment of the exercise price, using the VWAP on January 24, 2023 of approximately $13.14, pursuant to the terms of the warrant. Paul Segal separately is the direct beneficial owner of 338,825 shares of Common Stock of the Issuer. L-5 Healthcare Partners, LLC, /s/ Paul Segal, Manager 2023-01-26 /s/ Paul Segal 2023-01-26