SCHEDULE 13G/A 0001315868 XXXXXXXX LIVE 1 Common 12/31/2025 0001632127 Cable One, Inc. 12685J105 210 East Earll Drive Phoenix AZ 85012 Rule 13d-1(b) Burgundy Asset Management Ltd. Z4 325051 0 451960 0 451960 N 8.02 IA Cable One, Inc. 210 East Earll Drive, Phoenix, Arizona, 85012 Burgundy Asset Management Ltd. 181 Bay Street, Suite 4510, Toronto, Ontario, M5J 2T3 Canada N IA 451,960 8.0205% 325,051 0 451,960 0 N 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. Burgundy Asset Management Ltd. /s/ Karen Mintz 02/11/2026 As of November 1, 2025, Burgundy Asset Management Ltd. became a wholly owned subsidiary of Bank of Montreal. Beneficial ownership of the securities reported herein is now aggregated in Bank of Montreal's Schedule 13G filing