Company: LBRDK
Filing Date: 2025-01-17
Form Type: PRER14A
Source: 0001140361-25-001417
Chunk: 582

Company: Liberty Broadband Corp
Filing Date: 2025-01-17
Form: PRER14A
Chunk 582
---
 |     | Name:                  |     | Gregory B. Maffei  |
|                        |     | Title:                 |     | President          |

[ Signature Page to Maffei Voting Agreement] C-12

TABLE OF CONTENTS

| CHARTER COMMUNICATIONS, INC.  |     |                        |     |                                                      |
| By:                           |     | /s/ Jessica M. Fischer |     |                                                      |
|                               |     | Name:                  |     | Jessica M. 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 |

[ Signature Page to Maffei Voting Agreement] C-13

TABLE OF CONTENTS

SCHEDULE A Stockholder Information

| Stockholder            |     | Company Series A 
           Common 
            Stock |     | Company Series B 
 Common           
 Stock            |     | Company Preferred 
 Stock             |
| Gregory B. Maffei      |     |          256,830 |     | 104,582(1)       |     | —                 |
| Maven GRAT 1, LLC      |     |          116,290 |     | —                |     | —                 |
| Maven 2017-1 GRAT, LLC |     |                — |     | —                |     | —                 |
| Maffei Foundation      |     |           86,248 |     | —                |     | —                 |

| (1) | Includes beneficial ownership of 95,410 LBRDB shares that may be acquired upon exercise of, or which relate to, stock options exercisable within 60 days after the date of this Agreement. |

C-14

#### TABLE OF CONTENTS

#### Annex D
<div align='center'>**AMENDMENT NO. 1 TO THE SECOND AMENDED AND RESTATED**</div>

### STOCKHOLDERS AGREEMENT AND THE LETTER AGREEMENT
This AMENDMENT NO. 1 TO THE SECOND AMENDED AND RESTATED STOCKHOLDERS AGREEMENT AND THE LETTER AGREEMENT, dated as of November 12, 2024 (this “