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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

SCHEDULE 14A INFORMATION

PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE
SECURITIES EXCHANGE ACT OF 1934
(Amendment No.   )

Filed by the Registrant ☒
Filed by a Party other than the Registrant  ☐

Check the appropriate box:
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Preliminary Proxy Statement
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Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2))
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Definitive Proxy Statement
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Definitive Additional Materials
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Soliciting Material Under Rule 14a-12

Adverum Biotechnologies, Inc.
(Name of Registrant as Specified in its Charter)

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Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.