Company: AWK
Filing Date: 2025-12-17
Form Type: S-4
Source: 0001193125-25-321389
Chunk: 87

Company: American Water Works Company, Inc.
Filing Date: 2025-12-17
Form: S-4
Chunk 87
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” and wish to vote your shares virtually at the Essential
special meeting, you may vote online during the meeting as an authenticated shareholder with a 16-digit control number by visiting www.virtualshareholdermeeting.com/WTRG2026SM, entering your 16-digit control number, and following the on-screen instructions. The availability of online voting during the Essential special meeting for holders in “street
name” will depend on your intermediary’s specific voting procedures. Please contact your intermediary for information.

Revoking Your Vote

If you own shares of Essential common stock in your own name (including shares you may hold through Essential’s dividend reinvestment
and direct stock purchase plan), you may revoke or change any prior proxy, regardless of how your proxy was originally submitted, by (i) sending a written statement to that effect to Essential’s Corporate Secretary, which must be received
before the Essential special meeting, (ii) submitting a properly signed proxy card dated a later date, which must be received before the Essential special meeting,

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(iii) submitting a later dated proxy via the Internet or by telephone, which must be received by 11:59 p.m. Eastern time on [ ], 2026, or (iv) attending the Essential special
meeting virtually as an authenticated shareholder and voting your shares online during the meeting. For this purpose, communications to the Corporate Secretary of Essential should be addressed to Essential Utilities, Inc., 762 W. Lancaster Avenue,
Bryn Mawr, PA 19010.

If you hold shares in “street name,” you should follow the instructions provided on the voting instruction form you
received from the intermediary or contact the intermediary for instructions on how to change or revoke your vote.

Stock Ownership of and Voting by Essential Directors and Executive Officers

As of December 10, 2025, Essential’s directors and executive officers
and their affiliates beneficially owned a total of 1,009,383 shares of Essential common stock entitled to vote at the Essential special meeting, which represents less than 1% of Essential’s issued and outstanding common stock entitled to
vote at the Essential special meeting. Essential anticipates that these individuals will vote in favor of the proposals described above, although none of them have entered into any agreements obligating them to do so.

Solicitation of Proxies; Expenses of Solicitation

The Essential board is soliciting proxies with respect to the proposals to be considered at the Essential special meeting. Essential will bear the costs of
solicitation of proxies, including the reimbursement of banks and