Sec Form 4 Filing - SCGF III MANAGEMENT LLC @ BARRACUDA NETWORKS INC - 2015-05-15

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP 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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1. Name and Address of Reporting Person SCGF III MANAGEMENT LLC 2. Issuer Name and Ticker or Trading Symbol BARRACUDA NETWORKS INC [ CUDA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 2800 SAND HILL ROAD, SUITE 101 3. Date of Earliest Transaction (MM/DD/YY) 05/15/2015 (Street) MENLO PARK, CA94025 4. If Amendment, Date Original Filed (MM/DD/YY) 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 Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 05/15/2015 J( 1 ) 1,553,495 D 3,883,737 I By Sequoia Capital Growth Fund III, L.P. ( 2 ) Common Stock 05/15/2015 J( 1 ) 52,754 D 131,885 I By Sequoia Capital Growth III Principals Fund, LLC ( 2 ) Common Stock 05/15/2015 J( 1 ) 11,684 D 29,210 I By Sequoia Capital Growth Partners III, LP ( 2 ) Common Stock 05/15/2015 J( 1 ) 330,384 D 825,958 I By Sequoia Capital Franchise Fund, L.P ( 3 ) Common Stock 05/15/2015 J( 1 ) 45,054 D 112,633 I By Sequoia Capital Franchise Partners, L.P. ( 3 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other SCGF III MANAGEMENT LLC 2800 SAND HILL ROAD, SUITE 101 MENLO PARK, CA94025 X SEQUOIA CAPITAL GROWTH FUND III 2800 SAND HILL ROAD, SUITE 101 MENLO PARK, CA94025 X SEQUOIA CAPITAL GROWTH III PRINCIPALS FUND 2800 SAND HILL ROAD, SUITE 101 MENLO PARK, CA94025 X SEQUOIA CAPITAL GROWTH PARTNERS III 2800 SAND HILL ROAD, SUITE 101 MENLO PARK, CA94025 X SCFF MANAGEMENT LLC 2800 SAND HILL ROAD, SUITE 101 MENLO PARK, CA94025 X SEQUOIA CAPITAL FRANCHISE FUND LP 2800 SAND HILL ROAD, SUITE 101 MENLO PARK, CA94025 X SEQUOIA CAPITAL FRANCHISE PARTNERS LP 2800 SAND HILL ROAD, SUITE 101 MENLO PARK, CA94025 X Signatures By: /s/ Melinda Dunn, by power of attorney for Douglas Leone, a Managing Member of SCGF III Management, LLC 05/18/2015 Signature of Reporting Person Date By: /s/ Melinda Dunn, by power of attorney for Douglas Leone, a Managing Member of SCGF III Management, LLC, the General Partner of Sequoia Capital Growth Fund III, L.P. 05/18/2015 Signature of Reporting Person Date By: /s/ Melinda Dunn, by power of attorney for Douglas Leone, a Managing Member of SCGF III Management, LLC, the Managing Member of Sequoia Capital Growth III Principals Fund LLC 05/18/2015 Signature of Reporting Person Date By: /s/ Melinda Dunn, by power of attorney for Douglas Leone, a Managing Member of SCGF III Management, LLC, the General Partner of Sequoia Capital Growth Partners III, L.P. 05/18/2015 Signature of Reporting Person Date By: /s/ Melinda Dunn, by power of attorney for Douglas Leone, a Managing Member of SCFF Management, LLC 05/18/2015 Signature of Reporting Person Date By: /s/ Melinda Dunn, by power of attorney for Douglas Leone, a Managing Member of SCFF Management, LLC, the General Partner of Sequoia Capital Franchise Fund, L.P. 05/18/2015 Signature of Reporting Person Date By: /s/ Melinda Dunn, by power of attorney for Douglas Leone, a Managing Member of SCFF Management, LLC, the General Partner of Sequoia Capital Franchise Partners, L.P. 05/18/2015 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents a pro rata in-kind distribution of Common Stock of the Issuer to partners or members and includes subsequent distributions by general partners or managing members to their respective partners or members. ( 2 )SCGF III Management, LLC ("SCGF III Management") is the general partner of Sequoia Capital Growth Fund III, L.P. and Sequoia Capital Growth Partners III, L.P., and is the managing member of Sequoia Capital Growth III Principals Fund, LLC. As a result, SCGF III Management may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Capital Growth Fund III, L.P., Sequoia Capital Growth Partners III, L.P. and Sequoia Capital Growth III Principals Fund, LLC. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. ( 3 )SCFF Management, LLC ("SCFF Management") is the general partner of Sequoia Capital Franchise Fund, L.P. and Sequoia Capital Franchise Partners, L.P. As a result, SCFF Management may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Capital Franchise Fund, L.P. and Sequoia Capital Franchise Partners, L.P. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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