X0303 4 2010-04-27 0 0001092699 SPS COMMERCE INC SPSC 0001489869 CID Mezzanine Partners, L.P. 201 WEST 103RD STREET SUITE 200 INDIANAPOLIS IN 46290 0 0 1 0 0001054036 CID MEZZANINE CAPITAL L P 201 WEST 103RD STREET SUITE 200 INDIANAPOLIS IN 46290 0 0 1 0 Common Stock 2010-04-27 4 C 0 1575829 A 1575829 I By CID Mezzanine Capital, L.P. Common Stock 2010-04-27 4 S 0 427189 11.16 D 1148640 I By CID Mezzanine Capital, L.P. Series A Convertible Preferred Stock 2010-04-27 4 C 0 82102 0.00 D Common Stock 82102 0 I By CID Mezzanine Capital, L.P. Series B Convertible Preferred Stock 2010-04-27 4 C 0 1252962 0.00 D Common Stock 1252962 0 I By CID Mezzanine Capital, L.P. Series C Convertible Preferred Stock 2010-04-27 4 C 0 240765 0.00 D Common Stock 240765 0 I By CID Mezzanine Capital, L.P. The securities converted into the Issuer's Common Stock at a rate of one-for-one. Represents securities held directly by CID Mezzanine Capital, L.P, which is managed by CID Mezzanine Partners, L.P. The reporting person may be deemed to be an indirect beneficial owner of the reported securities. The reporting person disclaims any beneficial ownership of the reported securities, except to the extent of any pecuniary interest therein. This report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. The securities do not have an expiration date. Each share of Series A, Series B and Series C Convertible Preferred Stock automatically converted into shares of Common Stock in connection with the closing of the Issuer's initial public offering on April 27, 2010. Prior to its conversion into the Issuer's Common Stock, the Series A, Series B and Series C Convertible Preferred Stock was convertible at any time at the option of the holder. /s/ Ryan R. Miske, on behalf of CID Mezzanine Partners, L.P. 2010-04-29 /s/ Ryan R. Miske, on behalf of CID Mezzanine Partners, L.P., as General Partner of CID Mezzanine Capital, L.P. 2010-04-29