X0306 4 2019-02-15 0 0001092699 SPS COMMERCE INC SPSC 0001489097 Nelson Kimberly K. 333 SOUTH SEVENTH STREET SUITE 1000 MINNEAPOLIS MN 55402 0 1 0 0 EVP & CFO Common Stock 2019-02-15 4 S 0 2290 107.8863 D 45372 D Common Stock 2019-02-19 4 A 0 5583 0.00 A 50955 D Employee Stock Option (right to buy) 109.07 2019-02-19 4 A 0 8800 0.00 A 2026-02-19 Common Stock 8800 8800 D Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 14, 2018. Reflects the weighted average price of 2,290 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on February 15, 2019 with sales prices ranging from $107.82 to $108.01 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. Options vest as to 25% of the shares on February 19, 2020. The remaining shares vest in a series of 36 successive equal monthly installments upon completion of each additional month of service (commencing on March 19, 2020). /s/ Jonathan R. Zimmerman, attorney-in-fact for Kimberly K. Nelson 2019-02-20