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

Dec 11, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SI-BONE, Inc. (SIBN)
CIK: 0001459839
Period of Report: 2025-12-08

Reporting Person: DUNN JEFFREY W (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-12-08	Common Stock	M	1241.00	$4.32	Acquired	11548.00	Direct
2025-12-08	Common Stock	S	1241.00	$19.3297	Disposed	10307.00	Direct
2025-12-08	Common Stock	S	18759.00	$19.3297	Disposed	110115.00	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-12-08	Stock Option (Right to Buy)	$4.32	M	1241.00	Disposed	2026-07-26	Common Stock (1241.00)	Direct

Footnotes

F1: The sale reported on this Form 4 was effected pursuant to a 10b5-1 trading plan dated May 7th, 2025.

F2: The price reported in column 4 is a weighted-average price. The shares were sold in multiple transactions ranging from $19.13 to $19.85, 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 these footnotes.

F3: Includes 10,307 shares issuable on settlement of restricted stock units granted to the Reporting Person. Each restricted stock unit represents a contingent right to receive on shares of the Issuer's common stock.

F4: Shares held by The Jeffrey W. Dunn Living Trust Dated May 17, 2012.

F5: The shares subject to the option vest in equal monthly installments over four years commencing on the vesting commencement date, subject to Reporting Person's continued service through each relevant vesting date.