UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of report (Date of earliest event reported): ~~February~~March 2516, 2026

Comcast Corporation

(Exact Name of Registrant
as Specified in its Charter)

Pennsylvania

(State or Other Jurisdiction of Incorporation)

001-32871

27-0000798

(Commission File Number)

(IRS Employer Identification No.)

One Comcast Center

Philadelphia,

19103-2838

(Address of Principal Executive Offices)

(Zip Code)

Registrant’s telephone number, including area code: (215) 286-1700

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class

Trading ~~Symbol~~symbol(s)

Name of Each Exchange on Which Registered

Class A Common Stock, $0.01 par value

CMCSA

The Nasdaq Stock Market LLC

0.000% Notes due 2026

CMCS26

The Nasdaq Stock Market LLC

0.250% Notes due 2027

CMCS27

The Nasdaq Stock Market LLC

1.500% Notes due 2029

CMCS29

The Nasdaq Stock Market LLC

0.250% Notes due 2029

CMCS29A

The Nasdaq Stock Market LLC

0.750% Notes due 2032

CMCS32

The Nasdaq Stock Market LLC

3.250% Notes due 2032

CMCS32A

The Nasdaq Stock Market LLC

1.875% Notes due 2036

CMCS36

The Nasdaq Stock Market LLC

3.550% Notes due 2036

CMCS36A

The Nasdaq Stock Market LLC

1.250% Notes due 2040

CMCS40

The Nasdaq Stock Market LLC

5.250% Notes due 2040

CMCS40A

The Nasdaq Stock Market LLC

5.50% Notes due 2029

CCGBP29

New York Stock Exchange

2.0% Exchangeable Subordinated Debentures due 2029

CCZ

New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 57.0201. ~~Departure~~Regulation ofFD ~~Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.~~Disclosure

InBeginning ~~connection~~in ~~with~~ the ~~previously~~first ~~reported~~quarter ~~appointment~~ of ~~Gordon Smith as a director of Comcast Corporation on February 4,~~ 2026, Comcast’s ~~Board~~Corporation ofwill ~~Directors~~disclose oncertain ~~February~~pro ~~25,~~forma ~~2026~~information ~~appointed~~and ~~Mr.~~update ~~Smith~~our tosegment ~~serve~~reporting onstructure ~~the~~and ~~Audit~~customer ~~Committee of the Board~~metrics.

For additional detail on pro forma information, segment revenue and expenses, customer metrics, capital expenditures, and free cash flow, refer to the updated trending schedule attached hereto as Exhibit 99.1. Comcast Corporation does not intend for this Item 97.01~~(d)~~ or Exhibit 99.1 ~~Exhibits~~to be treated as “filed” under the Securities Exchange Act of 1934, as amended, or incorporated by reference into its filings under the Securities Act of 1933, as amended.

Exhibit Number

Description

104

Cover Page Interactive Data File (embedded within the Inline XBRL document)

Item 9.01. Exhibits

Exhibit Number

Description

99.1

Comcast Corporation T r ending Schedule as Rev ised on March 1 6 , 2026

104

Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

COMCAST CORPORATION

Date:

~~February~~March 2716, 2026

By:

/s/ ~~Elizabeth~~Daniel ~~Wideman~~C. Murdock

Name:

Elizabeth Wideman

Daniel C. Murdock

Title:

Senior Vice President, Senior Deputy General Counsel and Assistant Secretary

Executive Vice President, Chief Accounting Officer and Controller

(Principal Accounting Officer)

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