SCHEDULE 13G/A 0001085146-23-004076 0001163744 XXXXXXXX LIVE 3 Common Stock 12/31/2025 0000854775 DIGI INTERNATIONAL INC 253798102 9350 EXCELSIOR BLVD. SUITE 700 HOPKINS MN 55343 Rule 13d-1(b) Conestoga Capital Advisors DE 2955793 0 3166083 0 3166083 N 8.5 IA CONESTOGA FUNDS DE 2016279 0 2016279 0 2016279 N 5.42 IV DIGI INTERNATIONAL INC 9350 EXCELSIOR BLVD., SUITE 700, HOPKINS, MINNESOTA 55343 Conestoga Capital Advisors CONESTOGA FUNDS 550 E. SWEDESFORD ROAD SUITE 120 WAYNE, Pennsylvania 19087 Conestoga Capital Advisors - DELAWARE CONESTOGA FUNDS - DELAWARE N IV IA Conestoga Capital Advisors - 3,166,083 CONESTOGA FUNDS - 2,016,279 8.50 Conestoga Capital Advisors - 2,955,793 CONESTOGA FUNDS - 2,016,279 Conestoga Capital Advisors - 0 CONESTOGA FUNDS - 0 Conestoga Capital Advisors - 3,166,083 CONESTOGA FUNDS - 2,016,279 Conestoga Capital Advisors - 0 CONESTOGA FUNDS - 0 Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. Conestoga Capital Advisors Duane R. D'Orazio 01/08/2026 CONESTOGA FUNDS Duane R. D'Orazio 01/08/2026