<SEC-DOCUMENT>0000950123-18-009069-index.html : 20181025
<SEC-HEADER>0000950123-18-009069.hdr.sgml : 20181025
<ACCEPTANCE-DATETIME>20180820211540
<PRIVATE-TO-PUBLIC>
ACCESSION NUMBER:		0000950123-18-009069
CONFORMED SUBMISSION TYPE:	DRSLTR
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20180820

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:		DRSLTR

	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>
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<TYPE>DRSLTR
<SEQUENCE>1
<FILENAME>filename1.htm
<TEXT>
Document 1 - file: filename1.htm

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<SEQUENCE>2
<FILENAME>g553197g15v08.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g553197g15v08.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g553197g37j79.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g553197g37j79.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g553197g61n45.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g553197g61n45.jpg

</DOCUMENT>
</SEC-DOCUMENT>