UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE

SECURITIES EXCHANGE ACT OF 1934

Filed by the Registrant  x                            Filed by a Party other than the Registrant  ¨

Check the appropriate box:

¨ Preliminary Proxy Statement

¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

¨ Definitive Proxy Statement

x Definitive Additional Materials

¨ Soliciting Material Pursuant to §240.14a-11(c) or §240.14a-2

BARRACUDA NETWORKS, INC.

(Name of Registrant as Specified In Its Charter)

Payment of Filing Fee (Check the appropriate box):

x	No fee required.
¨	Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.
	(1)	Title of each class of securities to which transaction applies:
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	(5)	Total fee paid:
¨	Fee paid previously with preliminary materials.
¨	Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.
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	(2)	Form, Schedule or Registration Statement No.:
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Important Notice of Availability of Proxy Materials for the Stockholder Meeting of
BARRACUDA NETWORKS, INC.
To Be Held On:
August 10, 2016 at 1:00 p.m.
at 3175 S. Winchester Blvd., Campbell, CA 95008
COMPANY NUMBER
ACCOUNT NUMBER
CONTROL NUMBER
This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting.
If you want to receive a paper or e-mail copy of the proxy materials you must request one. There is no charge to you for requesting a copy. To facilitate timely delivery please make the request as instructed below before 7/29/16.
Please visit http://www.astproxyportal.com/ast/18596/, where the following materials are available for view:
TO REQUEST MATERIAL:
TO VOTE:
Notice of Annual Meeting of Stockholders
Proxy Statement
Form of Electronic Proxy Card
Annual Report on Form 10-K
TELEPHONE: 888-Proxy-NA (888-776-9962) 718-921-8562 (for international callers)
E-MAIL: info@amstock.com
WEBSITE: http://www.amstock.com/proxyservices/requestmaterials.asp
ONLINE: To access your online proxy card, please visit www.voteproxy.com and follow the on-screen instructions or scan the QR code with your smartphone. You may enter your voting instructions at www.voteproxy.com up until 11:59 PM Eastern Time the day before the cut-off or meeting date.
IN PERSON: You may vote your shares in person by attending the Annual Meeting.
TELEPHONE: To vote by telephone, please visit www.voteproxy.com to view the materials and to obtain the toll free number to call.
MAIL: You may request a card by following the instructions above.
1. To elect the following Class III Director Nominees
NOMINEES:
Jeffry R. Allen
David R. Golob
John H. Kispert
Please note that you cannot use this notice to vote by mail.
2. To ratify the appointment of Ernst & Young LLP as Barracuda Networks independent registered public accounting firm for the fiscal year ending February 28, 2017.
NOTE: The proxies are authorized to vote on such other business as may properly come before the meeting or any adjournment thereof.