X0407 4 2023-05-16 false 0001459839 SI-BONE, Inc. SIBN 0001853089 Maheshwari Anshul C/O SI-BONE, INC 471 EL CAMINO REAL, SUITE 101 SANTA CLARA CA 95050 false true false false Chief Financial Officer true Common Stock 2023-05-16 4 S false 905.00 24.6766 D 158792.00 D Common Stock 2023-05-16 4 S false 828.00 24.4566 D 157964.00 D Common Stock 2023-05-16 4 S false 1891.00 24.3908 D 157964.00 D The sale reported on this Form 4 represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. The sale satisfies the tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary trade by the Reporting Person. This transaction was executed in multiple trades at prices ranging from $24.14 USD to $24.83 USD; the price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide the Issuer, any security holder 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. This transaction was executed in multiple trades at prices ranging from $24.02 USD to $24.78 USD; the price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide the Issuer, any security holder 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. The sale reported on this Form 4 was effected pursuant to a 10b5-1 trading plan. Included 1,891 shares acquired under the SI-BONE Employee Stock Purchase Plan on May 15, 2023. Includes 130,194 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'scommon stock /s /Michael Pisetsky, Attorney-in-Fact for Anshul Maheshwari 2023-05-18