Company: LBRDK
Filing Date: 2025-01-22
Form Type: DEFM14A
Source: 0001140361-25-001609
Chunk: 599

Company: Liberty Broadband Corp
Filing Date: 2025-01-22
Form: DEFM14A
Chunk 599
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 purposes only and will not affect in any way the meaning or interpretation of this Assumption and Joinder Agreement.

<div align='center'>[Signature Page Follows]

E-4</div>

TABLE OF CONTENTS

IN WITNESS WHEREOF, the parties hereto have executed this Assumption and Joinder Agreement as of the day and year first above written.

| LIBERTY BROADBAND CORPORATION |     |                                                             |
| By:                           |     | /s/ Renee L. Wilm                                           |
|                               |     | Name: Renee L. Wilm                                         |
|                               |     | Title: Chief Legal Officer and Chief Administrative Officer |

| GRIZZLY MERGER SUB 1, LLC |     |                                                             |
| By:                       |     | /s/ Renee L. Wilm                                           |
|                           |     | Name: Renee L. Wilm                                         |
|                           |     | Title: Chief Legal Officer and Chief Administrative Officer |

| QURATE RETAIL, INC. |     |                                                      |
| By:                 |     | /s/ Craig Troyer                                     |
|                     |     | Name: Craig Troyer                                   |
|                     |     | Title: Senior Vice President and Assistant Secretary |

| CHARTER COMMUNICATIONS, INC. |     |                                |
| By:                          |     | /s/ Jessica M. Fischer         |
|                              |     | Name: Jessica M. Fischer       |
|                              |     | Title: Chief Financial Officer |

[Signature Page to Tax Sharing Agreement Joinder Agreement]

E-5

#### TABLE OF CONTENTS

#### Annex F

### ASSUMPTION AND JOINDER AGREEMENT TO

### INDEMNIFICATION AGREEMENT
This ASSUMPTION AND JOINDER AGREEMENT TO INDEMNIFICATION AGREEMENT is made and entered into as of November 12, 2024 (the “ Assumption and Joinder Agreement ”), by and among Charter Communications, Inc., a Delaware corporation (“ Parent ”), Liberty Broadband Corporation, a Delaware corporation (the “ Company ”), Grizzly Merger Sub 1, LLC, a Delaware limited liability company (successor to GCI Liberty, Inc., a Delaware corporation) (“ Grizzly Merger Sub ”), LV Bridge, LLC, a Delaware limited liability company and Wholly Owned Subsidiary of the Company (“ LV Bridge ”), Qurate Retail, Inc., a Delaware corporation (f/k/a Liberty Interactive Corporation) (“ Qurate Retail ”) and