X0306 4 2020-03-06 0001632127 Cable One, Inc. CABO 0001644040 Might Thomas O. C/O CABLE ONE, INC. 210 E. EARLL DRIVE PHOENIX AZ 85012 1 Common Stock, par value $0.01 2020-03-06 4 A 0 2116 0 A 12523 D Common Stock, par value $0.01 2020-03-06 4 F 0 827 1533.78 D 11696 D On January 3, 2017, the Reporting Person was granted performance-based restricted stock awards with respect to a target of 1,527 shares (the 2017 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. 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 Thomas O. Might 2020-03-10