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

Dec 4, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SI-BONE, Inc. (SIBN)
CIK: 0001459839
Period of Report: 2020-12-02

Reporting Person: Freund John Gordon (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-12-02	Common Stock	S	100000.00	$23.2848	Disposed	1529932.00	Indirect
2020-12-03	Common Stock	S	47886.00	$23.393	Disposed	1482046.00	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	100570.00	Indirect

Footnotes

F1: The price reported in column 4 is a weighted-average price. The shares were sold in multiple transactions ranging from $22.45 to $23.43, 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 this footnote.

F2: Shares held by 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: The price reported in column 4 is a weighted-average price. The shares were sold in multiple transactions ranging from $22.95 to $23.6950, 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.

F4: Reflects a previous pro rata distribution by Skyline Venture Partners V, L.P. ("SVP V") of 500,000 shares, for no consideration.

F5: Includes shares acquired in a pro rata distribution from Skyline Venture Partners V, L.P.

F6: 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.