SI-BONE, Inc. — Director's Dealing 2023

May 18, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SI-BONE, Inc. (SIBN)
CIK: 0001459839
Period of Report: 2023-05-16

Reporting Person: Maheshwari Anshul (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-05-16	Common Stock	S	905.00	$24.6766	Disposed	158792.00	Direct
2023-05-16	Common Stock	S	828.00	$24.4566	Disposed	157964.00	Direct
2023-05-16	Common Stock	S	1891.00	$24.3908	Disposed	157964.00	Direct

Footnotes

F1: 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.

F2: 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.

F3: 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.

F4: The sale reported on this Form 4 was effected pursuant to a 10b5-1 trading plan.

F5: Included 1,891 shares acquired under the SI-BONE Employee Stock Purchase Plan on May 15, 2023.

F6: 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