X0609 4 2026-08-15 0 0001453593 Xtant Medical Holdings, Inc. XTNT 0001960742 Schallenberger Mark A. false C/O XTANT MEDICAL HOLDINGS, INC. 664 CRUISER LANE BELGRADE MT 59714 0 1 0 0 Chief Operating Officer 0 Common Stock 2026-08-15 4 A 0 450000 0 A 1113157 D Common Stock 2026-08-15 4 F 0 7070 0.31 D 1106087 D These shares will vest with respect to 112,500 shares on each of August 15, 2027, August 15, 2028, August 15, 2029, and August 15, 2030 pursuant to a deferred stock unit (DSU) award granted under the Xtant Medical Holdings, Inc. Amended and Restated 2023 Equity Incentive Plan, conditioned upon the Reporting Person remaining an employee of Xtant through the applicable vesting date. The settlement of the vested shares underlying the DSU award has been deferred and will occur at a later date pursuant to the terms of the DSU award agreement. Each DSU represents a contingent right to receive one share of the Issuer's common stock. Includes an aggregate of 944,758 shares issuable upon vesting and settlement of restricted stock unit (RSU) awards or DSU awards granted under the Xtant Medical Holdings, Inc. Amended and Restated 2023 Equity Incentive Plan and 22,250 shares issuable upon vesting and settlement of RSU awards granted under the Xtant Medical Holdings, Inc. Amended and Restated 2018 Equity Incentive Plan, in each case conditioned upon the Reporting Person remaining an employee of Xtant through the applicable vesting dates. These shares were withheld by the Issuer to pay tax withholding obligations upon vesting and settlement of restricted stock unit awards. /s/ Amy Culbert, attorney-in-fact 2026-08-18