SEC Form 4

FORM 4		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 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
X	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* Housatonic Micro Fund SBIC, L.P. (Last) (First) (Middle) C/O HOUSATONIC PARTNERS 44 MONTGOMERY STREET, SUITE 4010 (Street) SAN FRANCISCO CA 94104 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol SERVICESOURCE INTERNATIONAL, INC. [ SREV ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner Officer (give title below) X Other (specify below) Former 10% Owner
	3. Date of Earliest Transaction (Month/Day/Year) 02/13/2012
	4. If Amendment, Date of 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

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	02/13/2012		S		204,449	D	$16.92	710,671	I	By Housatonic Equity Investors SBIC, LP(1)
Common Stock	02/13/2012		S		1,114,577	D	$16.92	3,874,303	I	By Housatonic Micro Fund SBIC, LP(2)
Common Stock	02/13/2012		S		411,981	D	$16.92	1,432,059	I	By Housatonic Equity Investors IV, LP(3)
Common Stock	02/13/2012		S		18,993	D	$16.92	66,018	I	By Housatonic Equity Affiliates IV, LP(4)

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 Securities Underlying Derivative Security (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: 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

1. Name and Address of Reporting Person* Housatonic Micro Fund SBIC, L.P. (Last) (First) (Middle) C/O HOUSATONIC PARTNERS 44 MONTGOMERY STREET, SUITE 4010 (Street) SAN FRANCISCO CA 94104 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Former 10% Owner

1. Name and Address of Reporting Person* Housatonic Micro Partners SBIC, L.L.C. (Last) (First) (Middle) C/O HOUSATONIC PARTNERS 44 MONTGOMERY STREET, SUITE 4010 (Street) SAN FRANCISCO CA 94104 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Former 10% Owner

1. Name and Address of Reporting Person* Housatonic Equity Investors IV LP (Last) (First) (Middle) C/O HOUSATONIC PARTNERS 44 MONTGOMERY STREET, SUITE 4010 (Street) SAN FRANCISCO CA 94104 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Former 10% Owner

1. Name and Address of Reporting Person* Housatonic Equity Affiliates IV LP (Last) (First) (Middle) C/O HOUSATONIC PARTNERS 44 MONTGOMERY STREET, SUITE 4010 (Street) SAN FRANCISCO CA 94104 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Former 10% Owner

1. Name and Address of Reporting Person* Housatonic Equity Partners IV, L.L.C. (Last) (First) (Middle) C/O HOUSATONIC PARTNERS 44 MONTGOMERY STREET, SUITE 4010 (Street) SAN FRANCISCO CA 94104 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Former 10% Owner

1. Name and Address of Reporting Person* Housatonic Equity Investors SBIC, L.P. (Last) (First) (Middle) C/O HOUSATONIC PARTNERS 44 MONTGOMERY STREET, SUITE 4010 (Street) SAN FRANCISCO CA 94104 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Former 10% Owner

1. Name and Address of Reporting Person* Housatonic Equity Partners SBIC, L.L.C. (Last) (First) (Middle) C/O HOUSATONIC PARTNERS 44 MONTGOMERY STREET, SUITE 4010 (Street) SAN FRANCISCO CA 94104 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Former 10% Owner

Explanation of Responses:

1. The securities are owned by Housatonic Equity Investors SBIC, L.P. ("HEI SBIC"). Housatonic Equity Partners SBIC, L.L.C. ("HEP SBIC") serves as the general partner of HEI SBIC. As such, HEP SBIC possesses sole voting and investment control over the shares owned by HEI SBIC and may be deemed to have indirect beneficial ownership of the shares held by HEI SBIC. HEP SBIC owns no securities of the Issuer directly. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of its pecuniary interest therein.

2. The securities are owned by Housatonic Micro Fund SBIC, L.P. ("HMF SBIC"). Housatonic Micro Partners SBIC, L.L.C. ("HMP SBIC") serves as the general partner of HMF SBIC. As such, HMP SBIC possesses sole voting and investment control over the shares owned by HMF SBIC and may be deemed to have indirect beneficial ownership of the shares held by HMF SBIC. HMP SBIC owns no securities of the Issuer directly. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of its pecuniary interest therein.

3. The securities are owned by Housatonic Equity Investors IV, L.P. ("HEI IV"). Housatonic Equity Partners IV, L.L.C. ("HEP IV") serves as the general partner of HEI IV. As such, HEP IV possesses sole voting and investment control over the shares owned by HEI IV and may be deemed to have indirect beneficial ownership of the shares held by HEI IV. HEP IV owns no securities of the Issuer directly. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of its pecuniary interest therein.

4. The securities are owned by Housatonic Equity Affiliates IV, L.P. ("HEA IV"). HEP IV serves as the general partner of HEA IV. As such, HEP IV possesses sole voting and investment control over the shares owned by HEA IV and may be deemed to have indirect beneficial ownership of the shares held by HEA IV. HEP IV owns no securities of the Issuer directly. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of its pecuniary interest therein.

	/s/ Barry D. Reynolds, Manager of Housatonic Micro Partners SBIC, LLC, which serves as the general partner of Housatonic Micro Fund SBIC, L.P.	02/15/2012
	/s/ Barry D. Reynolds, Manager of Housatonic Micro Partners SBIC, LLC	02/15/2012
	/s/ Barry D. Reynolds, Manager of Housatonic Equity Partners IV, LLC, which serves as the general partner of Housatonic Equity Investors IV, LP and Housatonic Equity Affiliates IV, LP	02/15/2012
	/s/ Barry D. Reynolds, Manager of Housatonic Equity Partners IV, LLC	02/15/2012
	/s/ Barry D. Reynolds, Manager of Housatonic Equity Partners SBIC, LLC, which serves as the general partner of Housatonic Equity Investors SBIC, LP	02/15/2012
	/s/ Barry D. Reynolds, Manager of Housatonic Equity Partners SBIC, LLC	02/15/2012
	** Signature of Reporting Person	Date
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).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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