X0306 4 2020-03-26 false 0001459839 SI-BONE, Inc. SIBN 0001754765 Pisetsky Michael A C/O SI-BONE, INC. 471 EL CAMINO REAL, SUITE 101 SANTA CLARA CA 95050 false true false false GC & Chief Compliance Officer Common Stock 2020-03-26 4 A false 1500.00 0.00 A 51221.00 D Reflects shares issuable on settlement of restricted stock units granted to the Reporting Person. Each restricted stock unit represents a contingent right to receive one shares of the Issuer's common stock. The shares subject to the restricted stock unit vest in lump sum on January 15, 2021, subject to the Reporting Person's continued service through relevant vesting date. Includes 42,480 shares issuable on settlement of restricted stock units granted to the Reporting Person. Each restricted stock unit represents a contingent right to receive one shares of the Issuer's common stock. /s/ Michael A. Pisetsky 2020-03-30