X0202 SCHEDULE 13G/A 0001644956-26-000012 0001644956 XXXXXXXX LIVE 1 Common Stock 03/31/2026 0000028823 DIEBOLD NIXDORF, Inc 253651202 350 ORCHARD AVE NE 350 ORCHARD AVE NE NORTH CANTON OH 44720 Rule 13d-1(b) WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC DE 1116690.00 0.00 1426464.00 0.00 1426464.00 4.1 IA DIEBOLD NIXDORF, Inc 350 ORCHARD AVE NE, 350 ORCHARD AVE NE, NORTH CANTON, OHIO, 44720. William Blair Investment Management, LLC 150 North Riverside Plaza, Chicago, IL 60606 Delaware N IA 1,426,464 4.1% 1,116,690 0 1,426,464 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. WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC Telmo Martins 05/07/2026