X0306 4 2020-03-06 0001632127 Cable One, Inc. CABO 0001644093 Bowker Michael E. C/O CABLE ONE, INC. 210 E. EARLL DRIVE PHOENIX AZ 85012 1 Chief Operating Officer Common Stock, par value $0.01 2020-03-06 4 A 0 628 0 A 2491 D Common Stock, par value $0.01 2020-03-06 4 F 0 134 1533.78 D 2357 D The Reporting Person was granted performance-based restricted stock awards with respect to a target of 221 shares on January 3, 2017 (the 2017 Award), and a target of 224 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 306 shares, and 144.1% of the target level of performance-based restricted stock for the 2019 Award, or 322 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 Michael E. Bowker 2020-03-10