FORM 4
[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

BLOCK ARTHUR R 		2. Issuer Name and Ticker or Trading Symbol

COMCAST CORP [ CMCSA ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
EVP, GC and Secretary
(Last)          (First)          (Middle)

ONE COMCAST CENTER 		3. Date of Earliest Transaction (MM/DD/YYYY)

11/29/2016
(Street)

PHILADELPHIA, PA 19103
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Class A Common Stock   11/29/2016     M    25720.0000   A $50.0000   69889.0000   D    
Class A Common Stock   11/29/2016     M    12210.0000   A $41.2200   82099.0000   D    
Class A Common Stock   11/29/2016     S    2745.0000   D $69.9100   79354.0000   D    
Class A Common Stock   11/29/2016     S    4007.0000   D $69.8640   75347.0000   D    
Class A Common Stock   11/29/2016     F    9465.0000   D $69.9100   65882.0000   D    
Class A Common Stock   11/29/2016     F    21713.0000   D $69.8700   44169.0000   D    

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8) 		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4) 		8. Price of Derivative Security
(Instr. 5) 		9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Option to Purchase   $41.2200   11/29/2016     M         12210.0000      (1) 3/21/2023   Class A Common Stock   12210.0000   $0.0000   44770.0000   D    
Option to Purchase   $50.0000   11/29/2016     M         25720.0000      (1) 3/21/2024   Class A Common Stock   25720.0000   $0.0000   38580.0000   D    

Explanation of Responses:
( 1)  With respect to the number of shares set forth in Column 7, this option is immediately exercisable.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
BLOCK ARTHUR R
ONE COMCAST CENTER
PHILADELPHIA, PA 19103

EVP, GC and Secretary

Signatures
/s/ Arthur R. Block 11/30/2016
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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