X0306 4 2022-01-26 0 0001092699 SPS COMMERCE INC SPSC 0001489265 Frome James J. 333 SOUTH SEVENTH STREET SUITE 1000 MINNEAPOLIS MN 55402 0 1 0 0 President & COO Common Stock 2022-01-26 4 A 0 12832 0.00 A 51795 D Common Stock 2022-01-27 4 S 0 1811 113.5652 D 49984 D Common Stock 2022-01-27 4 S 0 1200 114.9067 D 48784 D Common Stock 2022-01-27 4 S 0 700 115.73 D 48084 D Common Stock 2022-01-27 4 S 0 598 116.9141 D 47486 D Common Stock 2022-01-27 4 S 0 300 118.06 D 47186 D Common Stock 2022-01-27 4 S 0 100 119.00 D 47086 D Common Stock 338.039 I By 401(k) Plan On February 19, 2019, the reporting person was granted performance stock units ("PSUs"), with the number of PSUs earned to be determined based on the extent to which certain performance conditions were achieved for a three-year performance period of 2019-2021. As determined on January 26, 2022, based on actual performance, the reporting person earned the number of PSUs indicated, which PSUs were fully vested on that date. Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 7, 2021. Reflects the weighted average price of 1,811 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on January 27, 2022 with sales prices ranging from $113.15 to $114.05 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. Reflects the weighted average price of 1,200 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on January 27, 2022 with sales prices ranging from $114.39 to $115.36 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. Reflects the weighted average price of 700 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on January 27, 2022 with sales prices ranging from $115.41 to $116.21 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. Reflects the weighted average price of 598 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on January 27, 2022 with sales prices ranging from $116.46 to $117.40 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. Reflects the weighted average price of 300 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on January 27, 2022 with sales prices ranging from $117.49 to $118.35 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. /s/ Jonathan R. Zimmerman, attorney-in-fact for James J. Frome 2022-01-28