<SEC-DOCUMENT>0000950123-17-005519-index.html : 20181114
<SEC-HEADER>0000950123-17-005519.hdr.sgml : 20181114
<ACCEPTANCE-DATETIME>20170524172645
<PRIVATE-TO-PUBLIC>
ACCESSION NUMBER:		0000950123-17-005519
CONFORMED SUBMISSION TYPE:	DRSLTR
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20170524

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SI-BONE, Inc.
		CENTRAL INDEX KEY:			0001459839
		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
		IRS NUMBER:				262216351
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DRSLTR

	BUSINESS ADDRESS:	
		STREET 1:		471 EL CAMINO REAL, SUITE 101
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95050
		BUSINESS PHONE:		4082070700

	MAIL ADDRESS:	
		STREET 1:		471 EL CAMINO REAL, SUITE 101
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95050

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SI-Bone Inc.
		DATE OF NAME CHANGE:	20090326
</SEC-HEADER>
<DOCUMENT>
<TYPE>DRSLTR
<SEQUENCE>1
<FILENAME>filename1.htm
<TEXT>
Document 1 - file: filename1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g48972cooley.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g48972cooley.jpg

</DOCUMENT>
</SEC-DOCUMENT>