X0306 4 2021-06-10 false 0001459839 SI-BONE, Inc. SIBN 0001216628 HILLEMAN JERYL L C/O SI-BONE, INC. 471 EL CAMINO REAL, SUITE 101 SANTA CLARA CA 95050 true false false false Common Stock 2021-06-10 4 A false 3848.00 0.00 A 12645.00 D Reflects shares issuable on the settlement of restricted stock units granted to the Reporting Person. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. The shares subject to the restricted stock unit will be vesting 100% upon the earlier of (i) the next annual general meeting of the stockholders of the Company or (ii) the date one year from the Vesting Commencement Date, subject to the Reporting Person's continuous service as a member of the Company's Board of Directors until such date. Includes 3,848 shares issuable on settlement of restricted stock units granted to the Reporting Person. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. /s /Michael Pisetsky, Attorney-in-Fact for Jeryl L Hilleman 2021-06-14