X0508 4 2025-11-06 0 0001092699 SPS COMMERCE INC SPSC 0001688366 Partin Mark 333 SOUTH SEVENTH STREET SUITE 1000 MINNEAPOLIS MN 55402 1 0 0 0 0 Common Stock 2025-11-06 4 A 0 2485 0 A 2485 D Represents restricted stock units that vest in 36 monthly installments commencing on the first day of the calendar month following the reporting person's initial appointment to the Issuer's board of directors, provided the reporting person remains a member of the Issuer's board of directors as of the vesting date. /s/ Jonathan R. Zimmerman, Attorney-in-Fact for Mark Partin 2025-11-10