SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE
SECURITIES EXCHANGE ACT OF 1934
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|☐||Preliminary Proxy Statement|
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|☐||Definitive Proxy Statement|
|☒||Definitive Additional Materials|
|☐||Soliciting Material Under Rule 14a-12|
Adverum Biotechnologies, Inc.
(Name of Registrant as Specified in its Charter)
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0000376210_1 R220.127.116.11 *** Exercise Your Right to Vote ***Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on May 31, 2018 . ADVERUM BIOTECHNOLOGIES, INC. Meeting Information Meeting Type: Annual Meeting For holders as of: April 10, 2018 Date: May 31, 2018 Time: 11:00 AM PDT Location: Cooley LLP 3175 Hanover St. Palo Alto, CA 94304 For directions, please visit www.cooley.com/offices/paloalto You are receiving this communication because you hold shares in the above named company. This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side). We encourage you to access and review all of the important information contained in the proxy materials before voting. See the reverse side of this notice to obtain proxy materials and voting instructions.
0000376210_2 R18.104.22.168 Before You Vote How to Access the Proxy Materials Proxy Materials Available to VIEW or RECEIVE: 1. Annual Report 2. Notice & Proxy Statement How to View Online: Have the information that is printed in the box marked by the arrow (located on the following page) and visit: www.proxyvote.com. How to Request and Receive a PAPER or E-MAIL Copy: If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request: 1) BY INTERNET: www.proxyvote.com 2) BY TELEPHONE: 1-800-579-1639 3) BY E-MAIL*: email@example.com * If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow (located on the following page) in the subject line. Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before May 20, 2018 to facilitate timely delivery. How To Vote Please Choose One of the Following Voting Methods Vote In Person: If you choose to vote these shares in person at the meeting, you must request a legal proxy. To do so, please follow the instructions at www.proxyvote.com or request a paper copy of the materials, which will contain the appropriate instructions. Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow available and follow the instructions. Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a voting instruction form.
0000376210_3 R22.214.171.124 Voting items The Board of Directors recommends that you vote FOR the following: 1. Election of Directors Nominees 01 Paul B. Cleveland 02 Eric G. Carter 03 Thomas Woiwode The Board of Directors recommends you vote FOR the following proposal(s): 2. To ratify the selection, by the Audit Committee of our board of directors, of Ernst & Young LLP as our independent registered public accounting firm for our fiscal year ending December 31, 2018. NOTE: In their discretion, the proxyholders are authorized to vote upon such other business as may properly come before the meeting and any adjournment or postponement thereof.
Voting Instructions 0000376210_4 R126.96.36.199