Company: LBRDK
Filing Date: 2025-01-10
Form Type: PRER14A
Source: 0001140361-25-000778
Chunk: 591

Company: Liberty Broadband Corp
Filing Date: 2025-01-10
Form: PRER14A
Chunk 591
---
. Fischer                                   |
|                               |     | Title:                 |     | Chief Financial Officer                              |
| LIBERTY BROADBAND CORPORATION |     |                        |     |                                                      |
| By:                           |     | /s/ Renee L. Wilm      |     |                                                      |
|                               |     | Name:                  |     | Renee L. Wilm                                        |
|                               |     | Title:                 |     | Chief Legal Officer and Chief Administrative Officer |
| ADVANCE/NEWHOUSE PARTNERSHIP  |     |                        |     |                                                      |
| By:                           |     | /s/ Steven A. Miron    |     |                                                      |
|                               |     | Name:                  |     | Steven A. Miron                                      |
|                               |     | Title:                 |     | Chief Executive Officer                              |

D-8

#### TABLE OF CONTENTS

#### Annex E

### ASSUMPTION AND JOINDER AGREEMENT TO

### TAX SHARING AGREEMENT
This ASSUMPTION AND JOINDER AGREEMENT TO TAX SHARING 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 ”), and Qurate Retail, Inc., a Delaware corporation (f/k/a Liberty Interactive Corporation) (“ Qurate Retail ”). Capitalized terms used but not defined herein will have the meanings ascribed thereto in the Merger Agreement (as defined below).

### W I T N E S S E T H
WHEREAS, Qurate Retail and Grizzly Merger Sub are parties to the Tax Sharing Agreement, dated as of March 9, 2018 (as the same may be amended from time to time, the “ Tax Sharing Agreement ”);

WHEREAS, the Company became a party to the Tax Sharing Agreement pursuant to that certain Assumption and Joinder Agreement to Tax Sharing Agreement, dated as of August 6, 2020, by and among the Company, Grizzly Merger Sub and Qurate Retail (the “ Company Joinder ”);

WHEREAS, simultaneously with the execution of this Assumption and Joinder Agreement, Parent, Fusion Merger Sub 1, LLC,