X0306 4 2021-03-05 0001632127 Cable One, Inc. CABO 0001693812 Lardy Eric Michael C/O CABLE ONE, INC. 210 E. EARLL DRIVE PHOENIX AZ 85012 1 SVP, Operations & Integration Common Stock, par value $0.01 2021-03-05 4 A 0 392 0 A 1534 D On January 3, 2020, the Reporting Person was granted performance-based restricted stock awards with respect to a target of 196 shares. On March 5, 2021, the Compensation Committee of the Board of Directors of Cable One, Inc. certified the applicable performance goals were achieved with respect to 200% of the target level of performance-based restricted stock. /s/ Peter N. Witty for Eric Michael Lardy 2021-03-08