X0306 4 2021-08-03 0 0001092699 SPS COMMERCE INC SPSC 0001205069 WEHRWEIN SVEN 333 SOUTH SEVENTH STREET SUITE 1000 MINNEAPOLIS MN 55402 1 0 0 0 Common Stock 2021-08-03 4 M 0 3000 37.22 A 19846 D Common Stock 2021-08-03 4 S 0 3000 111.318 D 16846 D Common Stock 2021-08-04 4 M 0 2000 37.22 A 18846 D Common Stock 2021-08-04 4 S 0 2000 112.19 D 16846 D Stock Option (right to buy) 37.22 2021-08-03 4 M 0 3000 0.00 D 2025-05-31 Common Stock 3000 3570 D Stock Option (right to buy) 37.22 2021-08-04 4 M 0 2000 0.00 D 2025-05-31 Common Stock 2000 1570 D On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 3,285 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 6,570 shares of Common Stock. This option was previously reported as an option for 3,285 shares of Common stock at an exercise price of $74.43 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019. Reflects the weighted average price of 3,000 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on August 3, 2021 with sales prices ranging from $111.01 to $111.84 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 2,000 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on August 4, 2021 with sales prices ranging from $112.00 to $112.39 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 A. Wehrwein 2021-08-05