SCHEDULE 14A
(Rule 14a-101)
INFORMATION REQUIRED IN PROXY STATEMENT
SCHEDULE 14A INFORMATION
PROXY STATEMENT PURSUANT TO SECTION 14(a) OF
THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No.  )

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Adverum Biotechnologies, Inc.
(Name of registrant as specified in its charter)

THE SONIC FUND II, L.P.
LAWRENCE KAM
JEAN BENNETT
JODI COOK
HERBERT HUGHES


 (Name of person(s) filing proxy statement, if other than the registrant)


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The Sonic Fund II, L.P., together with the other participants named herein (collectively, “Sonic”), has filed with the Securities and Exchange Commission a definitive proxy statement and an accompanying proxy card to be used to solicit votes for the election of its slate of director nominees for the Board of Directors of Adverum Biotechnologies, Inc., a Delaware corporation (the “Issuer”) at the Issuer’s 2021 annual meeting of stockholders.

On April 26, 2021, Sonic and its affiliates issued a presentation on the Issuer, a copy of which is attached hereto as Exhibit 99.1 (the “Presentation”). The Presentation was distributed via a press release, which is attached hereto as Exhibit 99.2, and via Sonic’s website (www.saveadverum.com), as described more fully in the definitive additional materials on Schedule 14A to be filed with the Securities and Exchange Commission on the date hereof.



Exhibit 99.2

THE SONIC FUND II, L.P. ISSUES PRESENTATION CORRECTING ADVERUM’S MISSTATEMENTS

Highlights Numerous Mischaracterizations in Adverum’s Recent Investor Presentation
Sonic’s Sole Aim in this Contest is for Adverum to Have Best Board Possible to Ensure Development and Approval of Company’s Potentially Life-Changing Treatment
Urges Stockholders to Vote on the GREEN Proxy Card Today to Elect Sonic’s Three Independent Director Nominees to Drastically Improve Board
Honolulu, HI – April 26, 2021 – The Sonic Fund II, L.P. (“Sonic”), which beneficially owns approximately 6.8% of the outstanding common stock of Adverum Biotechnologies, Inc. (NASDAQ: ADVM) (the “Company” or “Adverum”), today issued a supplemental presentation detailing – and correcting – a number of the Company’s recent misstatements. Sonic has nominated three independent, highly qualified director candidates – Jean Bennett, Jodi Cook and Herbert Hughes (the “Nominees”) – for election to the Adverum Board of Directors (the “Board”) at the 2021 Annual Meeting of Stockholders (the “2021 Annual Meeting”).

The presentation, entitled “Adverum’s Myths: Correcting the Record,” is available at: https://www.saveadverum.com/investor-materials.

Vote on the GREEN proxy card today
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