X0306 4 2020-03-06 0001632127 Cable One, Inc. CABO 0001663130 McDonald Charles B. C/O CABLE ONE, INC. 210 E. EARLL DRIVE PHOENIX AZ 85012 1 SVP, Operations Common Stock, par value $0.01 2020-03-06 4 A 0 432 0 A 1733 D Common Stock, par value $0.01 2020-03-06 4 F 0 64 1533.78 D 1669 D The Reporting Person was granted performance-based restricted stock awards with respect to a target of 168 shares on January 3, 2017 (the 2017 Award), and a target of 139 shares on January 3, 2019 (the 2019 Award). On March 6, 2020, the Compensation Committee of the Board of Directors of Cable One, Inc. certified the applicable performance goals were achieved with respect to 138.6% of the target level of performance-based restricted stock for the 2017 Award, or 232 shares, and 144.1% of the target level of performance-based restricted stock for the 2019 Award, or 200 shares. Represents the withholding of shares of Common Stock to satisfy tax withholding liability associated with the vesting of the 2017 Award. /s/ Peter N. Witty for Charles B. McDonald 2020-03-10