SI-BONE, Inc. — Director's Dealing 2025

Nov 5, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SI-BONE, Inc. (SIBN)
CIK: 0001459839
Period of Report: 2025-11-03

Reporting Person: DUNN JEFFREY W (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-11-03	Common Stock	S	293.00	$14.8038	Disposed	10831.00	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	118350.00	Indirect

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 $14.68 USD to $15.03 USD; the price reported above reflects the weighted average sale price. . The Reporting Person undertakes to provide 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: Includes 10,307 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.

F4: Reflects the transfer of shares from the Reporting Person to The Jeffrey W. Dunn Living Trust dated May 17, 2012.

F5: Shares held by The Jeffrey W. Dunn Living Trust Dated May 17, 2012.