    <SEC-DOCUMENT>0001140361-23-020185-index.html : 20230425
    <SEC-HEADER>0001140361-23-020185.hdr.sgml : 20230425
    <ACCEPTANCE-DATETIME>20230425160207
    ACCESSION NUMBER:		0001140361-23-020185
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		9
    CONFORMED PERIOD OF REPORT:	20230609
    FILED AS OF DATE:		20230425
    DATE AS OF CHANGE:		20230425

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Adverum Biotechnologies, Inc.
    		CENTRAL INDEX KEY:			0001501756
    		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
    		IRS NUMBER:				205258327
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-36579
    		FILM NUMBER:		23844783

    	BUSINESS ADDRESS:
    		STREET 1:		100 CARDINAL WAY
    		CITY:			REDWOOD CITY
    		STATE:			CA
    		ZIP:			94063
    		BUSINESS PHONE:		(650) 649-1004

    	MAIL ADDRESS:
    		STREET 1:		100 CARDINAL WAY
    		CITY:			REDWOOD CITY
    		STATE:			CA
    		ZIP:			94063

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	Avalanche Biotechnologies, Inc.
    		DATE OF NAME CHANGE:	20100921
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>ny20007145x2_def14a.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: ny20007145x2_def14a.htm

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>ny20007145x2_barchart01.jpg
    <TEXT>
    Document 2 - file: ny20007145x2_barchart01.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>ny20007145x2_barchart02.jpg
    <TEXT>
    Document 3 - file: ny20007145x2_barchart02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>ny20007145x2_barchart03.jpg
    <TEXT>
    Document 4 - file: ny20007145x2_barchart03.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>ny20007145x2_pc01.jpg
    <TEXT>
    Document 5 - file: ny20007145x2_pc01.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>ny20007145x2_pc02.jpg
    <TEXT>
    Document 6 - file: ny20007145x2_pc02.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>ny20007145x2_piechart01.jpg
    <TEXT>
    Document 7 - file: ny20007145x2_piechart01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>ny20007145x2_piechart02.jpg
    <TEXT>
    Document 8 - file: ny20007145x2_piechart02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>ny20007145x2_piechart03.jpg
    <TEXT>
    Document 9 - file: ny20007145x2_piechart03.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>