Ownership Submission
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

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
ROBERTS BRIAN L
  2. Issuer Name and Ticker or Trading Symbol
COMCAST CORP [CMCSA]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chairman of Board, Pres. & CEO
(Last)
(First)
(Middle)
ONE COMCAST CENTER
3. Date of Earliest Transaction (Month/Day/Year)
09/18/2018
(Street)

PHILADELPHIA, PA 19103
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction 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 09/18/2018   J(1)   216,343 A (1) 13,712,646 (3) I By LLC
Class A Common Stock 09/18/2018   J(1)   216,343 D (1) 13,712,646 (3) I By LLC
Class A Common Stock 09/18/2018   J(2)   751,869 A (2) 13,712,646 (3) I By LLC
Class A Common Stock 09/18/2018   J(2)   751,869 D (2) 13,712,646 (3) I By LLC
Class A Common Stock               2,660,079 (3) D  
Class A Common Stock               8,127,490 (3) I By Trusts
Class A Common Stock               480 I By Daughter
Class A Common Stock               286,044 I By Spouse

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction 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
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(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
Class B Common Stock (4) (1) (4) 09/18/2018   J(1)   216,343     (4)   (4) Class A Common Stock 9,039,663 (1) (4) 9,039,663 I By LLC
Class B Common Stock (4) (1) (4) 09/18/2018   J(1)     216,343   (4)   (4) Class A Common Stock 9,039,663 (1) (4) 9,039,663 I By LLC

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
ROBERTS BRIAN L
ONE COMCAST CENTER
PHILADELPHIA, PA 19103
  X     Chairman of Board, Pres. & CEO  

Signatures

 /s/ Arthur R. Block, as Attorney-in-Fact   09/20/2018
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) Reflects distributions by grantor retained annuity trusts (GRATs) established by the Reporting Person to certain family trusts of a 2.39% interest in a limited liability company controlled by the Reporting Person, which conveyed to the family trusts an indirect interest in (i) 216,343 shares of Class A Common Stock and (ii) 216,343 shares of Class B Common Stock.
(2) Reflects distributions by GRATs established by the Reporting Person to certain family trusts of a 5.48% interest in a limited liability company controlled by the Reporting Person, which conveyed to the family trusts an indirect interest in 751,869 shares of Class A Common Stock.
(3) Reflects a prorata distribution of shares of Class A Common Stock by a limited liability company controlled by the Reporting Person to the Reporting Person and certain family trusts.
(4) Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock.

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