Company: AWK
Filing Date: 2025-12-29
Form Type: S-4/A
Source: 0001193125-25-332292
Chunk: 241

Company: American Water Works Company, Inc.
Filing Date: 2025-12-29
Form: S-4/A
Chunk 241
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 proxy statement/prospectus or in any of the materials that American Water or Essential has incorporated by reference into this joint proxy statement/prospectus. Therefore, if anyone does give you information of this sort, you should not rely on it. The information contained in this joint proxy statement/prospectus speaks only as of the date of this joint proxy statement/prospectus unless the information specifically indicates that another date applies. 185

Annex A

EXECUTION VERSION

AGREEMENT AND PLAN OF MERGER

by and among

AMERICAN WATER WORKS COMPANY, INC.,

ALPHA MERGER SUB, INC.

and

ESSENTIAL UTILITIES, INC.

Dated as of October 26, 2025

TABLE OF CONTENTS

|                                                                      |     |                                                                |     | Page |      |
| ARTICLE I                                                            |     |                                                                |     |      |      |
| THE MERGER                                                           |     |                                                                |     |      |      |
| Section 1.1                                                          |     | The Merger                                                     |     |      | A-1  |
| Section 1.2                                                          |     | Closing                                                        |     |      | A-2  |
| Section 1.3                                                          |     | Effective Time                                                 |     |      | A-2  |
| Section 1.4                                                          |     | Effects of the Merger                                          |     |      | A-2  |
| Section 1.5                                                          |     | Organizational Documents of the Surviving Corporation          |     |      | A-2  |
| Section 1.6                                                          |     | Directors and Officers of the Surviving Corporation            |     |      | A-2  |
| Section 1.7                                                          |     | Organizational Documents of Parent                             |     |      | A-3  |
| Section 1.8                                                          |     | Directors and Officers of Parent                               |     |      | A-3  |
| ARTICLE II                                                           |     |                                                                |     |      |      |
| CONVERSION OF SHARES; EXCHANGE OF CERTIFICATES AND BOOK-ENTRY SHARES |     |                                                                |     |      |      |
| Section 2.1                                                          |     | Effect on Capital Stock                                        |     |      | A-3  |
| Section 2.2                                                          |     | Exchange of Shares                                             |     |      | A-5  |
| Section 2.3                                                          |     | Equity Awards                                                  |     |      | A