<SEC-DOCUMENT>0001193125-18-284330-index.html : 20180927
<SEC-HEADER>0001193125-18-284330.hdr.sgml : 20180927
<ACCEPTANCE-DATETIME>20180926202721
ACCESSION NUMBER:		0001193125-18-284330
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20180927
DATE AS OF CHANGE:		20180926
EFFECTIVENESS DATE:		20180927

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SUTRO BIOPHARMA INC
		CENTRAL INDEX KEY:			0001382101
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				452441988
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-227551
		FILM NUMBER:		181089248

	BUSINESS ADDRESS:	
		STREET 1:		310 UTAH AVE., SUITE 150
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080
		BUSINESS PHONE:		650-392-8412

	MAIL ADDRESS:	
		STREET 1:		310 UTAH AVE., SUITE 150
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-8
<SEQUENCE>1
<FILENAME>d596360ds8.htm
<DESCRIPTION>FORM S-8
<TEXT>
Document 1 - file: d596360ds8.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>d596360dex51.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 2 - file: d596360dex51.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.2
<SEQUENCE>3
<FILENAME>d596360dex232.htm
<DESCRIPTION>EX-23.2
<TEXT>
Document 3 - file: d596360dex232.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g596360g11k09.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g596360g11k09.gif

</DOCUMENT>
</SEC-DOCUMENT>