X0306 4 2019-06-28 false 0001459839 SI-BONE, Inc. SIBN 0001754756 Yerby Scott A C/O SI-BONE, INC. 471 EL CAMINO REAL, SUITE 101 SANTA CLARA CA 95050 false true false false Chief Technology Officer Common Stock 2019-06-28 4 S false 30000.00 20.0001 D 144030.00 I By Trust Common Stock 2019-07-02 4 S false 376.00 20.14 D 143654.00 I By Trust Common Stock 9984.00 D The sale reported on this Form 4 was effected pursuant to a 10b5-1 trading plan. The price reported in column 4 is a weighted-average price. The shares were sold in multiple transactions ranging from $20.00 to $20.015, inclusive. The Reporting Person undertakes to provide the Issuer, any securityholder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Shares held by The Yerby Family Trust Dated May 22, 2007 Includes 9,562 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, Attorney-in-Fact for Scott A. Yerby 2019-07-02