SI-BONE, Inc. — Director's Dealing 2021

May 27, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SI-BONE, Inc. (SIBN)
CIK: 0001459839
Period of Report: 2021-05-24

Reporting Person: Freund John Gordon (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-24	Common Stock	S	50827.00	$32.5409	Disposed	474079.00	Indirect
2021-05-24	Common Stock	S	200.00	$32.76	Disposed	473879.00	Indirect
2021-05-25	Common Stock	S	1696.00	$32.5452	Disposed	472183.00	Indirect
2021-05-26	Common Stock	S	17138.00	$31.8493	Disposed	455045.00	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 $32.50 to $32.65, 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.

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 $32.75 to $32.77, 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: The price reported in column 4 is a weighted-average price. The shares were sold in multiple transactions ranging from $32.50 to $32.70, 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.

F5: The price reported in column 4 is a weighted-average price. The shares were sold in multiple transactions ranging from $31.55 to $32.00, 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.

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.