X0508 4 2025-02-18 false 0001459839 SI-BONE, Inc. SIBN 0001218802 FRANCIS LAURA C/O SI-BONE, INC. 471 EL CAMINO REAL, SUITE 101 SANTA CLARA CA 95050 true true false false Chief Executive Officer false Common Stock 2025-02-18 4 S false 1044.00 16.5608 D 551950.00 D Common Stock 2025-02-18 4 S false 2029.00 16.7451 D 549921.00 D Common Stock 2025-02-18 4 S false 2232.00 16.775 D 547689.00 D Common Stock 2025-02-18 4 S false 3197.00 16.8335 D 544492.00 D Common Stock 2025-02-18 4 S false 9781.00 17.6007 D 534711.00 D Common Stock 2025-02-18 4 S false 1566.00 16.7212 D 533145.00 D Common Stock 2025-02-18 4 S false 3016.00 17.4473 D 530129.00 D Common Stock 2025-02-18 4 S false 5135.00 17.0019 D 524994.00 D Common Stock 2025-02-18 4 S false 8185.00 17.5873 D 516809.00 D Common Stock 2025-02-18 4 S false 5017.00 17.0446 D 511792.00 D Common Stock 2025-02-18 4 S false 5031.00 17.0269 D 506761.00 D Common Stock 341462.00 I by Trust 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 $16.36 USD to $17.35 USD; the price reported above reflects the weighted average sale price. Includes 442,987 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. Shares by The David & Laura Francis Joint Rev Tr. This transaction was executed in multiple trades at prices ranging from $16.36 USD to $16.72 USD; the price reported above reflects the weighted average sale price. This transaction was executed in multiple trades at prices ranging from $16.36 USD to $16.95 USD; the price reported above reflects the weighted average sale price. This transaction was executed in multiple trades at prices ranging from $16.35 USD to $16.95 USD; the price reported above reflects the weighted average sale price. This transaction was executed in multiple trades at prices ranging from $16.36 USD to $17.33 USD; the price reported above reflects the weighted average sale price. This transaction was executed in multiple trades at prices ranging from $17.35 USD to $17.915 USD; the price reported above reflects the weighted average sale price. This transaction was executed in multiple trades at prices ranging from $17.36 USD to $17.58 USD; the price reported above reflects the weighted average sale price. This transaction was executed in multiple trades at prices ranging from $16.35 USD to $17.345 USD; the price reported above reflects the weighted average sale price. This transaction was executed in multiple trades at prices ranging from $17.35 USD to $17.835 USD; the price reported above reflects the weighted average sale price. /s/ Michael A. Pisetsky, Attorney-in-Fact for Laura A. Francis 2025-02-21