Ownership Submission
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 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 *
FENTON PETER H
   2. Issuer Name and Ticker or Trading Symbol
SERVICESOURCE INTERNATIONAL, INC. [SREV] 		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)
2480 SAND HILL ROAD, SUITE 200		 3. Date of Earliest Transaction (Month/Day/Year)
12/06/2011
(Street)

MENLO PARK, CA 94025		 4. If Amendment, Date Original Filed(Month/Day/Year)
 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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 12/06/2011   J(1)   1,800,000 D $ 0 9,350,740 I See footnote (2)

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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 (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 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
(Month/Day/Year)		 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
FENTON PETER H
2480 SAND HILL ROAD
SUITE 200
MENLO PARK, CA 94025		     X    
LASKY MITCHELL
2480 SAND HILL ROAD
SUITE 200
MENLO PARK, CA 94025		     X    

Signatures

 /s/ Steven M. Spurlock, by power of attorney for Peter H. Fenton   12/07/2011
**Signature of Reporting Person Date
 /s/ Steven M. Spurlock, by power of attorney for Mitchell H. Lasky   12/07/2011
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(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) Represents a pro-rata in-kind distribution of Common Stock of the Issuer by Benchmark Capital Partners V, L.P. ("BCP V") without consideration to its partners.
(2) Benchmark Capital Management Co. V, LLC ("BCMC V"), the general partner of each of BCP V, Benchmark Founders' Fund V, L.P. ("BFF V"), Benchmark Founders' Fund V-A, L.P. ("BFF V-A") and Benchmark Founders' Fund V-B, L.P. ("BFF V-B"), may be deemed to have the sole voting and dispositive power over 9,350,740 shares of the Issuer's common stock. BCMC V and each of its managing members disclaim beneficial ownership of these shares of Issuer's common stock except to the extent of any pecuniary interest therein, and the filing of this report is not an admission that BCMC V and each of its managing members is the beneficial owner of these shares for purposes of Section 16 or for any other purpose.
 
Remarks:
Alexandre Balkanski, Bruce W. Dunlevie, J. William Gurley, Kevin R. Harvey, Robert C. Kagle, Steven M. Spurlock, Peter H. Fenton and
Mitchell H. Lasky are the managing members of BCMC V, which serves as the general partner to each of BCP V, BFF V, BFF V-A and BFF
V-B. Each reporting person disclaims the existence of a "group" and disclaims beneficial ownership of any securities except
to the extent of such reporting person's pecuniary interest in such securities. *This report is one of three reports, each on a separate
Form 4, but relating to the same transaction being filed by BCMC V, its managing members and the Benchmark V Funds.

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