COMCAST CORP — Director's Dealing 2012

Feb 22, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COMCAST CORP (CMCSA)
CIK: 0001166691
Period of Report: 2012-02-17

Reporting Person: BLOCK ARTHUR R (SVP, GC and Secretary)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-02-17	Class A Common Stock	M	69750.0000	$17.5000	Acquired	129913.0000	Direct
2012-02-17	Class A Common Stock	M	58800.0000	$22.6600	Acquired	188713.0000	Direct
2012-02-17	Class A Common Stock	M	54600.0000	$18.5066	Acquired	243313.0000	Direct
2012-02-17	Class A Common Stock	M	44550.0000	$18.9800	Acquired	287863.0000	Direct
2012-02-17	Class A Common Stock	M	42300.0000	$14.5400	Acquired	330163.0000	Direct
2012-02-17	Class A Common Stock	M	39258.0000	$17.2400	Acquired	369421.0000	Direct
2012-02-17	Class A Common Stock	M	7500.0000	$19.9200	Acquired	376921.0000	Direct
2012-02-17	Class A Common Stock	M	5625.0000	$18.0800	Acquired	382546.0000	Direct
2012-02-17	Class A Common Stock	F	4379.0000	$28.6500	Disposed	378167.0000	Direct
2012-02-17	Class A Common Stock	F	6128.0000	$28.6500	Disposed	372039.0000	Direct
2012-02-17	Class A Common Stock	S	29130.0000	$28.5000	Disposed	342909.0000	Direct
2012-02-17	Class A Common Stock	F	29785.0000	$28.6500	Disposed	313124.0000	Direct
2012-02-17	Class A Common Stock	F	29866.0000	$28.6500	Disposed	283258.0000	Direct
2012-02-17	Class A Common Stock	F	35518.0000	$28.6500	Disposed	247740.0000	Direct
2012-02-17	Class A Common Stock	F	42988.0000	$28.6500	Disposed	204752.0000	Direct
2012-02-17	Class A Common Stock	F	51415.0000	$28.6500	Disposed	153337.0000	Direct
2012-02-17	Class A Common Stock	F	53443.0000	$28.6500	Disposed	99894.0000	Direct
2012-02-17	Class A Common Stock	S	68861.0000	$28.5000	Disposed	31033.0000	Direct
2012-02-17	Class A Special Common Stock	M	5625.0000	$15.8933	Acquired	40220.0000	Direct
2012-02-17	Class A Special Common Stock	S	1446.0000	$27.6200	Disposed	38774.0000	Direct
2012-02-17	Class A Special Common Stock	F	4179.0000	$27.7900	Disposed	34595.0000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-02-17	Option to Purchase	$18.5066	M	54600.0000	Disposed	2016-01-19	Class A Common Stock (54600.0000)	Direct
2012-02-17	Option to Purchase	$18.0800	M	5625.0000	Disposed	2013-02-25	Class A Common Stock (5625.0000)	Direct
2012-02-17	Option to Purchase	$19.9200	M	7500.0000	Disposed	2014-03-07	Class A Common Stock (7500.0000)	Direct
2012-02-17	Option to Purchase	$22.6600	M	58800.0000	Disposed	2015-03-13	Class A Common Stock (58800.0000)	Direct
2012-02-17	Option to Purchase	$17.2400	M	39258.0000	Disposed	2019-12-17	Class A Common Stock (39258.0000)	Direct
2012-02-17	Option to Purchase	$17.5000	M	69750.0000	Disposed	2016-03-09	Class A Common Stock (69750.0000)	Direct
2012-02-17	Option to Purchase	$14.5400	M	42300.0000	Disposed	2019-03-26	Class A Common Stock (42300.0000)	Direct
2012-02-17	Option to Purchase	$18.9800	M	44550.0000	Disposed	2018-03-27	Class A Common Stock (44550.0000)	Direct
2012-02-17	Option to Purchase	$15.8933	M	5625.0000	Disposed	2012-10-26	Class A Special Common Stock (5625.0000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Special Common Stock	9091.0000	Indirect
Class A Special Common Stock	9328.0000	Indirect

Footnotes

F1: This option is immediately exercisable.