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( Mark One ) ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended : December 31 , 2020 or □ UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - K TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from ____to Commission file number 001-34702 Title of each class Common Stock , par value $ 0.001 per share Delaware ( State or Other Jurisdiction of Incorporation or Organization ) SPS COMMERCE , INC . Large Accelerated Filer Non - Accelerated Filer EPG TM ☐ X ( Exact Name of Registrant as Specified in its Charter ) 333 South Seventh Street , Suite 1000 , Minneapolis , MN 55402 ( Address of Principal Executive Offices , Including Zip Code ) ( 612 ) 435-9400 ( Registrant's Telephone Number , Including Area Code ) Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol SPSC Securities registered pursuant to Section 12 ( g ) of the Act : None Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes > No Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15 ( d ) of the Act . Yes No 41-2015127 ( I.R.S. Employer Identification No. ) Name of exchange on which registered The Nasdaq Stock Market LLC ( Nasdaq Global Market ) Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes No Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T ( §232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes No Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company , or an emerging growth company . See the definitions of " large accelerated filer , " " accelerated filer , " " smaller reporting company , " and " emerging growth company " in Rule 12b - 2 of the Exchange Act . Accelerated Filer Smaller Reporting Company Emerging Growth Company ooo 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 . Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report . Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Exchange Act ) . Yes No > As of June 30 , 2020 , the last business day of the registrant's most recently completed second fiscal quarter , the aggregate market value of shares of the registrant's common stock held by non - affiliates of the registrant ( based upon the split adjusted closing sale price of $ 75.12 per share on the Nasdaq Global Market on such date ) was approximately $ 2.6 billion . The number of shares of the registrant's common stock , par value $ 0.001 per share , outstanding as of February 10 , 2021 was 35,583,977 shares . DOCUMENTS INCORPORATED BY REFERENCE Portions of the Company's definitive Proxy Statement for the Annual Meeting of Stockholders to be held on May 19 , 2021 ( the " 2021 Proxy Statement " ) , which is expected to be filed within 120 days after the end of the fiscal year covered by this Annual Report on Form 10 - K , are incorporated by reference in Part III of this Annual Report on Form 10 - K .