X0508 4 2024-02-14 0001092699 SPS COMMERCE INC SPSC 0001205069 WEHRWEIN SVEN 333 SOUTH SEVENTH STREET SUITE 1000 MINNEAPOLIS MN 55402 1 0 Common Stock 2024-02-14 4 M 0 3000 59 A 20387 D Common Stock 2024-02-14 4 S 0 958 192.2188 D 19429 D Common Stock 2024-02-14 4 S 0 800 193.6435 D 18629 D Common Stock 2024-02-14 4 S 0 842 194.8785 D 17787 D Common Stock 2024-02-14 4 S 0 400 195.7138 D 17387 D Common Stock 2024-02-15 4 M 0 768 59 A 18155 D Common Stock 2024-02-15 4 S 0 768 194.0812 D 17387 D Common Stock 2024-02-15 4 S 0 1640 198.4133 D 15747 D Stock Option (right to buy) 59 2024-02-14 4 M 0 3000 0 D 2027-05-18 Common Stock 3000 768 D Stock Option (right to buy) 59 2024-02-15 4 M 0 768 0 D 2027-05-18 Common Stock 768 0 D Reflects the weighted average price of 958 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on February 14, 2024, with sales prices ranging from $192.03 to $192.65 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 800 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on February 14, 2024, with sales prices ranging from $193.31 to $194.17 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 842 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on February 14, 2024, with sales prices ranging from $194.32 to $195.23 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 400 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on February 14, 2024, with sales prices ranging from $195.45 to $196.08 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. Fully vested. /s/ Jonathan R. Zimmerman, Attorney-in-Fact for Sven Wehrwein 2024-02-16