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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
________________
FORM 8-K
________________
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of report (Date of earliest event reported): April 28, 2021
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ServiceSource International, Inc.
(Exact name of Registrant as specified in its charter)
________________
Delaware001-3510881-0578975
(State or other jurisdiction of incorporation)(Commission File Number)(IRS Employer Identification No.)

707 17th Street, 25th Floor
Denver, CO 80202
(Address of principal executive offices, including zip code)
(720889-8500
(Registrant's telephone number, including area code)
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Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the Registrant under any of the following provisions:
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))



Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. 
Securities registered pursuant to Section 12(b) of the Act:
(Title of each class)(Trading Symbol)(Name of each exchange on which registered)
Common Stock, $0.0001 Par ValueSREVThe Nasdaq Stock Market LLC
Item 2.02 Results of Operations and Financial Condition.
On April 28, 2021, ServiceSource International, Inc. issued a press release announcing its results for the quarter ended March 31, 2021. A copy of the press release is attached as Exhibit 99.1 to this current report on Form 8-K and is incorporated by reference herein.
The information contained in Item 2.02 of this current report on Form 8-K and the Exhibit 99.1 attached hereto shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act") or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits
Exhibit No.Description
Press release dated April 28, 2021 and entitled ''ServiceSource Reports First Quarter 2021 Financial Results''



SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: April 28, 2021
SERVICESOURCE INTERNATIONAL, INC.
By: /s/ MEGAN FINE
Name: Megan Fine
Title: General Counsel