<SEC-DOCUMENT>0001144204-19-006659-index.html : 20190212
<SEC-HEADER>0001144204-19-006659.hdr.sgml : 20190212
<ACCEPTANCE-DATETIME>20190212163034
ACCESSION NUMBER:		0001144204-19-006659
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20190212
DATE AS OF CHANGE:		20190212
GROUP MEMBERS:		ALTA PARTNERS MANAGEMENT VIII, LLC
GROUP MEMBERS:		DANIEL JANNEY
GROUP MEMBERS:		FARAH CHAMPSI
GROUP MEMBERS:		GUY NOHRA

SUBJECT COMPANY:	

	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:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-90656
		FILM NUMBER:		19591292

	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

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SUTRO BIOPHARMA INC
		DATE OF NAME CHANGE:	20061127

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Alta Partners VIII, L.P.
		CENTRAL INDEX KEY:			0001399763
		IRS NUMBER:				204774702
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		ONE EMBARCADERO CENTER, SUITE 3700
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94111
		BUSINESS PHONE:		415-362-4022

	MAIL ADDRESS:	
		STREET 1:		ONE EMBARCADERO CENTER, SUITE 3700
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94111
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>tv512846_sc13g.htm
<DESCRIPTION>SC 13G
<TEXT>
Document 1 - file: tv512846_sc13g.htm

</DOCUMENT>
</SEC-DOCUMENT>