X0508 4 2024-08-19 0001092699 SPS COMMERCE INC SPSC 0001489097 Nelson Kimberly K. 333 SOUTH SEVENTH STREET SUITE 1000 MINNEAPOLIS MN 55402 1 EVP & CFO 1 Common Stock 2024-08-19 4 M 0 3000 27.34 A 150002 D Common Stock 2024-08-19 4 S 0 600 194.6721 D 149402 D Common Stock 2024-08-19 4 S 0 1000 195.62 D 148402 D Common Stock 2024-08-19 4 S 0 1083 196.8602 D 147319 D Common Stock 2024-08-19 4 S 0 317 197.9519 D 147002 D Common Stock 432.792 I By 401(k) Plan Employee Stock Option (right to buy) 27.34 2024-08-19 4 M 0 3000 0 D 2025-02-13 Common Stock 3000 0 D Adoption date of referenced 10b5-1(c) plan is: 05-20-2024. Reflects the weighted average price of 600 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on August 19, 2024, with sales prices ranging from $194.26 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 1,000 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on August 19, 2024, with sales prices ranging from $195.27 to $196.14 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 1,083 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on August 19, 2024, with sales prices ranging from $196.50 to $197.41 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 317 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on August 19, 2024, with sales prices ranging from $197.75 to $198.12 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 Kimberly K. Nelson 2024-08-21