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Filing Details

Accession Number:: 0001209191-18-055701
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2018-10-19 16:52:36
Reporting Period:: 2018-10-19

Accepted Time:: 2018-10-19 16:52:36
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1459839	Si-Bone Inc.	SIBN	()	DE

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1055951	Orbimed Advisors Llc	601 Lexington Avenue, 54Th Floor New York NY 10022		Yes	No	No	No
1615374	Orbimed Capital Gp V Llc	601 Lexington Avenue, 54Th Floor New York NY 10022		Yes	No	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2018-10-19	605,964	$0.00	605,964	No	4	C	Indirect	By OrbiMed Private Investments V, LP
Common Stock	Acquisiton	2018-10-19	179,404	$0.00	785,368	No	4	C	Indirect	By OrbiMed Private Investments V, LP
Common Stock	Acquisiton	2018-10-19	200,000	$15.00	985,368	No	4	P	Indirect	By OrbiMed Private Investments V, LP

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	C	Indirect	By OrbiMed Private Investments V, LP
No	4	C	Indirect	By OrbiMed Private Investments V, LP
No	4	P	Indirect	By OrbiMed Private Investments V, LP

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Series 6 Preferred Stock	Disposition	2018-10-19	572,326	$0.00	605,964	$0.00
Common Stock	Series 7 Preferred Stock	Disposition	2018-10-19	179,404	$0.00	179,404	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0			No	4	C	Indirect
0			No	4	C	Indirect

Footnotes

The Issuer's Series 6 Preferred Stock automatically converted into approximately 1.05878 shares of Issuer's common stock immediately uponthe closing of the Issuer's initial public offering and has no expiration date.
Shares held by OrbiMed Private Investments V, LP. ("OPI V"). OrbiMed Capital GP V LLC ("GP V") is the general partner of OPI V and OrbiMed Advisors LLC ("OrbiMed Advisors") is the managing member of GP V. By virtue of such relationships, GP V and OrbiMed Advisors may be deemed to have voting and investment power with respect to the shares held by OPI V and as a result may be deemed to have have beneficial ownership of such shares. OrbiMed Advisors exercises investment and voting power through a management committee comprised of Carl L. Gordon, Sven H. Borho, and Jonathan T. Silverstein. David P. Bonita, a member of the Issuer's board of directors, is an employee of OrbiMed Advisors.
This report on Form 4 is jointly filed by GP V and OrbiMed Advisors. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any such entity is a beneficial owner of such securities for purpose of Section 16 of the Exchange Act, or for any other purpose.
The Issuer's Series 7 Preferred Stock automatically converted into an equal number of shares of Issuer's common stock immediately upon the closing of the Issuer's initial public offering and has no expiration date.