X0508 4 2023-08-15 0 0001453593 Xtant Medical Holdings, Inc. XTNT 0001902610 Neils Scott C 664 CRUISER LANE BELGRADE MT 59714 0 1 0 0 Chief Financial Officer 0 Common Stock 2023-08-15 4 A 0 116144 0 A 520104 D Common Stock 2023-08-15 4 F 0 25246 1.18 D 494858 D Stock Option (right to buy) 1.2 2023-08-15 4 A 0 135501 0 A 2033-08-15 Common Stock 135501 135501 D These shares will vest and be issued with respect to 29,036 shares on each of August 15, 2024, August 15, 2025, August 15, 2026 and August 15, 2027 pursuant to a restricted stock unit granted under the Xtant Medical Holdings, Inc. 2023 Equity Incentive Plan, conditioned upon the Reporting Person remaining an employee of Xtant through the vesting date. Includes 116,144 shares to be issued upon vesting pursuant to a restricted stock unit award granted under the Xtant Medical Holdings, Inc. 2023 Equity Incentive Plan and 227,985 shares to be issued upon vesting pursuant to restricted stock unit awards granted under the Xtant Medical Holdings, Inc. Amended and Restated 2018 Equity Incentive Plan, all conditioned upon the Reporting Person remaining an employee of Xtant through the vesting dates. This option vests with respect to 33,875 shares on August 15, 2024 and with respect to the remaining 75% of such shares over the three-year period thereafter in 12 as nearly equal as possible quarterly installments, conditioned upon the Reporting Person remaining an employee of Xtant through the vesting date. /s/ Amy E. Culbert, attorney-in-fact 2023-08-17