X0306 4 2019-04-16 0001166691 COMCAST CORP CMCSA 0001698551 Murdock Daniel C. ONE COMCAST CENTER PHILADELPHIA PA 19103 1 SVP & Chief Accounting Officer Class A Common Stock 2019-04-16 4 M 0 1575.0000 0.0000 A 3707.3680 D Class A Common Stock 2019-04-16 4 F 0 537.0000 41.9700 D 3170.3680 D Class A Common Stock 2019-04-17 4 S 0 1038.0000 42.0000 D 2132.3680 D Restricted Stock Units 0.0000 2019-04-16 4 M 0 1575.0000 0.0000 D Class A Common Stock 1575.0000 48583.0000 D Transaction was effected pursuant to a Rule 10b5-1 trading plan. Each restricted stock unit represents a contigent right to receive one share of Class A Common Stock. These restricted stock units vest on the transaction date. Elizabeth Wideman, Attorney-in-fact 2019-04-16