    <SEC-DOCUMENT>0001140361-20-009203-index.html : 20200417
    <SEC-HEADER>0001140361-20-009203.hdr.sgml : 20200417
    <ACCEPTANCE-DATETIME>20200417170257
    ACCESSION NUMBER:		0001140361-20-009203
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		5
    FILED AS OF DATE:		20200417
    DATE AS OF CHANGE:		20200417
    EFFECTIVENESS DATE:		20200417

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			DYNAVAX TECHNOLOGIES CORP
    		CENTRAL INDEX KEY:			0001029142
    		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
    		IRS NUMBER:				330728374
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-34207
    		FILM NUMBER:		20800406

    	BUSINESS ADDRESS:
    		STREET 1:		2100 POWELL STREET
    		STREET 2:		SUITE 900
    		CITY:			EMERYVILLE
    		STATE:			CA
    		ZIP:			94608
    		BUSINESS PHONE:		5108485100

    	MAIL ADDRESS:
    		STREET 1:		2100 POWELL STREET
    		STREET 2:		SUITE 900
    		CITY:			EMERYVILLE
    		STATE:			CA
    		ZIP:			94608
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>nc10006524x2_defa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: nc10006524x2_defa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>nc10006524x2_nc1.jpg
    <TEXT>
    Document 2 - file: nc10006524x2_nc1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>nc10006524x2_nc2.jpg
    <TEXT>
    Document 3 - file: nc10006524x2_nc2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>nc10006524x2_nc3.jpg
    <TEXT>
    Document 4 - file: nc10006524x2_nc3.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>nc10006524x2_nc4.jpg
    <TEXT>
    Document 5 - file: nc10006524x2_nc4.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>