X0306 4 2022-02-22 0001166691 COMCAST CORP CMCSA 0001063948 ROBERTS BRIAN L ONE COMCAST CENTER PHILADELPHIA PA 19103 1 1 Chairman of Board, Pres. & CEO Phantom Stock 2022-02-22 4 I 0 102973.8250 46.9400 A Class A Common Stock 102973.8250 487018.8820 D Each share of phantom stock represents the economic equivalent to one share of Class A common stock. Phantom shares have been deferred under our deferred compensation plans, will settle in cash and may be transferred into alternative investments under the terms of our deferred compensation plans. The Reporting Person has elected to notionally reinvest previously deferred compensation into another deferred compensation plan investment. Elizabeth Wideman, Attorney-in-fact 2022-02-23