Company: AWK
Filing Date: 2025-12-29
Form Type: S-4/A
Source: 0001193125-25-332292
Chunk: 6

Company: American Water Works Company, Inc.
Filing Date: 2025-12-29
Form: S-4/A
Chunk 6
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/prospectus is dated [ ], 202[ ] and is first being sent or given to shareholders of American Water and Essential on or about [ ], 202[ ].

American Water Works Company, Inc. 1 Water Street Camden, New Jersey 08102-1658 NOTICE OF SPECIAL MEETING OF SHAREHOLDERS TO BE HELD ON FEBRUARY 10, 2026 Dear American Water Works Company, Inc. Shareholder: I am pleased to notify you of, and invite you to attend, the special meeting of shareholders of American Water Works Company, Inc., which is referred to as the American Water special meeting, which will be held at 10:00 a.m., Eastern time on February 10, 2026 via remote communication at www.virtualshareholdermeeting.com/AWK2026SMto allow broad access to the American Water special meeting by American Water’s shareholders and employees. At the American Water special meeting, American Water shareholders will be asked to consider and vote on the following matters:

| 1. | a proposal to approve the issuance of American Water common stock, par value $0.01 per share, pursuant to the                                                                                                                                        
 Agreement and Plan of Merger, dated as of October 26, 2025, which, as may be amended from time to time, is referred to as the merger agreement, by and among American Water, Essential Utilities, Inc., which is referred to as Essential, and Alpha 
 Merger Sub, Inc., a copy of which is attached as Annex A to the joint proxy statement/prospectus accompanying this notice, which proposal is referred to as the share issuance proposal; and                                                         |

| 2. | a proposal to adjourn or postpone the American Water special meeting from time to time, if necessary or                                                                                                                                             
 appropriate, to solicit additional proxies in the event there are not sufficient votes at the time of the American Water special meeting (or any adjournment or postponement thereof) to approve the share issuance proposal, or to ensure that any 
 supplement or amendment to the accompanying joint proxy statement/prospectus is timely provided to American Water shareholders, which proposal is referred to as the American Water adjournment proposal.                                           |

Approval of the share issuance proposal by the American Water shareholders is required to complete the transactions contemplated by the merger agreement. American Water will transact no other business at the American Water special meeting, except for business properly brought before the American Water special meeting or any adjournment or postponement thereof by or at the direction of the