X0306 4 2019-04-30 0 0001092699 SPS COMMERCE INC SPSC 0001489095 Black Archie C. 333 SOUTH SEVENTH STREET SUITE 1000 MINNEAPOLIS MN 55402 1 1 0 0 CEO Common Stock 2019-04-30 4 M 0 3645 16.64 A 86988.9978 D Common Stock 2019-04-30 4 S 0 6040 103.7111 D 80948.9978 D Common Stock 2019-04-30 4 S 0 1495 104.6011 D 79453.9978 D Common Stock 2019-04-30 4 S 0 610 105.844 D 78843.9978 D Common Stock 2019-04-30 4 S 0 300 106.8697 D 78543.9978 D Common Stock 2019-04-30 4 S 0 200 108.05 D 78343.9978 D Common Stock 200 I By Son-I Common Stock 200 I By Son-II Common Stock 200 I By Son-III Common Stock 200 I By Son-IV Common Stock 120.394 I By 401(k) Plan Employee Stock Option (right to buy) 16.64 2019-04-30 4 M 0 3645 0.00 D 2021-02-10 Common Stock 3645 65000 D Stock option exercise effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 20, 2019. Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 20, 2019. Reflects the weighted average price of 6,040 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on April 30, 2019 with sales prices ranging from $103.25 to $104.22 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 1,495 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on April 30, 2019 with sales prices ranging from $104.28 to $105.26 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 610 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on April 30, 2019 with sales prices ranging from $105.30 to $106.12 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. Reflects the weighted average price of 300 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on April 30, 2019 with sales prices ranging from $106.57 to $107.13 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. The indirect holdings were inadvertently omitted from previous fillings. These shares are held in the reporting person's account in the SPS Commerce, Inc. 401(k) plan as of April 29, 2019. Fully vested. /s/ Jonathan R. Zimmerman, attorney-in-fact for Archie C. Black 2019-05-01