X0306 4 2020-01-03 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 2020-01-03 4 A false 32430.00 0.00 A 50013.00 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 will be vesting over four years beginning on January 1, 2020 and will be released in quarterly installments commencing on May 15, 2020, subject to the Reporting Person's continued service through each relevant vesting date. Includes 41,692 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 2020-01-07