Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Francisco Partners GP, LLC
2. Date of Event Requiring Statement (Month/Day/Year)
11/05/2013
3. Issuer Name and Ticker or Trading Symbol
BARRACUDA NETWORKS INC [CUDA]
(Last)
(First)
(Middle)
ONE LETTERMAN DRIVE, BUILDING C, SUITE 410
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

SAN FRANCISCO, CA 94129
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 1,143,075
I
See footnote (1)
Common Stock 5,629
I
See footnote (2)
Common Stock 722
I
See footnote (3)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Series A Convertible Preferred Stock   (4)   (4) Common Stock 6,245,946 $ (4) I See footnote (1)
Series A Convertible Preferred Stock   (4)   (4) Common Stock 30,756 $ (4) I See footnote (2)
Series A Convertible Preferred Stock   (4)   (4) Common Stock 4,707 $ (4) I See footnote (3)

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Francisco Partners GP, LLC
ONE LETTERMAN DRIVE
BUILDING C, SUITE 410
SAN FRANCISCO, CA 94129
    X    
Francisco Partners, LP
ONE LETTERMAN DRIVE
BUILDING C, SUITE 410
SAN FRANCISCO, CA 94129
    X    
Francisco Partners Fund A, L.P.
ONE LETTERMAN DRIVE
BUILDING C, SUITE 410
SAN FRANCISCO, CA 94129
    X    
Francisco Partners Management, LP
ONE LETTERMAN DRIVE
BUILDING C, SUITE 410
SAN FRANCISCO, CA 94129
    X    
FP Annual Fund Investors, LLC
ONE LETTERMAN DRIVE
BUILDING C, SUITE 410
SAN FRANCISCO, CA 94129
    X    

Signatures

/s/ David R. Golob, a Manager of Francisco Partners GP, LLC 11/05/2013
**Signature of Reporting Person Date

/s/ David R. Golob, a Manager of Francisco Partners GP, LLC, the General Partner of Francisco Partners, L.P. 11/05/2013
**Signature of Reporting Person Date

/s/ David R. Golob, a Manager of Francisco Partners GP, LLC, the General Partner of Francisco Partners Fund A, L.P. 11/05/2013
**Signature of Reporting Person Date

/s/ David R. Golob, a Partner of Francisco Partners Management, LP 11/05/2013
**Signature of Reporting Person Date

/s/ David R. Golob, a Partner of Francisco Partners Management, LP, the Manager of FP Annual Fund Investors, LLC 11/05/2013
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The shares are held directly by Francisco Partners, L.P. ("FP I"). Francisco Partners GP, LLC ("FP GP LLC"), the general partner of FP I, shares voting and dispositive power with respect to the securities held by FP I. Dipanjan Deb, David R. Golob, Keith Geeslin and Ezra Perlman, certain of the managers of FP GP LLC, share voting and dispositive power with respect to the shares held by FP I. Such persons and entities disclaim beneficial ownership of the securities held by FP I except to the extent of any pecuniary interest therein.
(2) The shares are held directly by Francisco Partners Fund A, L.P. ("FPFA"). FP GP LLC, the general partner of FPFA, shares voting and dispositive power with respect to the securities held by FPFA. Messrs. Deb, Golob, Geeslin and Perlman, certain of the managers of FP GP LLC, share voting and dispositive power with respect to the shares held by FPFA. Such persons and entities disclaim beneficial ownership of the securities held by FPFA except to the extent of any pecuniary interest therein.
(3) The shares are held directly by FP Annual Fund Investors, LLC ("FPAFI"). Francisco Partners Management, LP ("FPM LP"), the manager of FPAFI, shares voting and dispositive power with respect to the securities held by FPAFI. Messrs. Deb, Golob, Geeslin and Perlman, certain of the partners of FPM LP, share voting and dispositive power with respect to the shares held by FPAFI. Such persons and entities disclaim beneficial ownership of the securities held by FPAFI except to the extent of any pecuniary interest therein.
(4) Each share of the Series A Convertible Preferred Stock and Series B Convertible Preferred Stock shall automatically convert into Common Stock on a one-for-one basis immediately prior to the completion of the Issuer's initial public offering of Common Stock and has no expiration date.
 
Remarks:
This report is one of four reports, each on a separate Form 3, but relating to the same transaction being filed by the Francisco Partners and certain of its affiliated funds and partners.

The Reporting Persons may be deemed to be, but do not concede to being, members of a group holding over 10% of the outstanding common stock of the Issuer for purposes of Section 13(d)(3) of the Securities Exchange Act of 1934.

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