SI-BONE, Inc. — Director's Dealing 2020

Oct 21, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SI-BONE, Inc. (SIBN)
CIK: 0001459839
Period of Report: 2020-10-19

Reporting Person: Freund John Gordon (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-10-19	Common Stock	S	190053.00	$22.00	Disposed	2129932.00	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	50285.00	Indirect

Footnotes

F1: Shares were sold in conjunction with the Issuer's public offering of common stock announced on October 14, 2020.

F2: Shares held by Skyline Venture Partners V, L.P. ("SVP V"). Skyline Venture Management V, LLC ("LLC") is the general partner of SVP V and as
such may be deemed to have voting and investment power with respect to the securities of SVP V. Reporting Person, a member of Issuer's
board of directors, is a managing director of LLC and may be deemed to have voting and investment power with respect to the securities held by
SVP V. Reporting Person disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

F3: Reflects shares acquired in a pro rata distribution from Skyline Venture Partners V, L.P.

F4: Shares held by John Freund Family Partnership IV, L.P. ("Family LP"). Reporting Person, a member of Issuer's board of directors, is a general
partner of Family LP and may be deemed to have voting and investment power with respect to the securities held by Family LP. Reporting
Person disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.