SCHEDULE 13G/A 0001037792-24-000003 0001037792 XXXXXXXX LIVE 1 Common Stock 06/30/2025 0001708055 Ribbon Communications Inc. 762544104 6500 CHASE OAKS BOULEVARD 6500 CHASE OAKS BOULEVARD PLANO TX 75023 Rule 13d-1(b) PARADIGM CAPITAL MANAGEMENT INC/NY NY 8748200.00 0.00 8748200.00 0.00 8748200.00 5.0 IA Ribbon Communications Inc. 6500 CHASE OAKS BOULEVARD, 6500 CHASE OAKS BOULEVARD, PLANO, TEXAS, 75023. Paradigm Capital Management, Inc. 9 Elk Street, Albany, NY 12207 New York S Corporation N IA 8748200 4.96 8748200 0 8748200 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. PARADIGM CAPITAL MANAGEMENT INC/NY Gregg A Miller 08/14/2025