Company: AWK
Filing Date: 2025-12-29
Form Type: S-4/A
Source: 0001193125-25-332292
Chunk: 78

Company: American Water Works Company, Inc.
Filing Date: 2025-12-29
Form: S-4/A
Chunk 78
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 a holder of record with your16-digitcontrol number. Online access to the American Water special meeting will open approximately 15 minutes prior to
the start of the meeting to permit you time to access and log into the virtual meeting platform. Your ability to be admitted to the meeting is also subject to potential capacity limits set by the virtual meeting platform provider.

Members of the public, including American Water shareholders who do not have their 16-digit control number, will be
able to access the American Water special meeting as a guest in listen-only mode by visitingwww.virtualshareholdermeeting.com/AWK2026SM. Shareholders of American Water and other persons without a 16-digit control number will not be able to
otherwise participate in, vote at, or submit appropriate questions at, the American Water special meeting.

No recording or rebroadcasting of the American
Water special meeting by participants will be permitted.

Voting by Proxy

How you vote your shares at the American Water special meeting depends on how you hold your shares of American Water common stock. If you hold shares directly
in your name with Equiniti Trust Company, LLC, American Water’s transfer agent, including shares held through American Water Stock Direct, you are a holder of record. If you hold your shares of American Water common stock through an
intermediary, you hold your shares in “street name.”

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If you received more than one proxy card and/or voting instruction form, your shares of American Water
common stock are likely registered in different names or with different addresses or are in more than one account. You must separately follow the applicable voting procedures described below for each proxy card or voting instruction form that you
receive in order for all of your shares to be voted at the American Water special meeting.

Holders of Record

If you are a holder of record of your shares of American Water common stock (including shares held through American Water Stock Direct), you may submit your
proxy by mailing the enclosed proxy card, by telephone, or via the Internet, and may vote virtually at the American Water special meeting by attending the live webcast at www.virtualshareholdermeeting.com/AWK2026SM. If you hold your shares in
more than one account, please be sure to submit a proxy for each proxy card you receive.

Holders of record may vote by mail by completing, signing,
and dating your enclosed proxy card and returning it in the accompanying pre-addressed envelope for receipt no later than the close of business on February 9, 2026 in order for