Company: AWK
Filing Date: 2025-12-29
Form Type: S-4/A
Source: 0001193125-25-332292
Chunk: 79

Company: American Water Works Company, Inc.
Filing Date: 2025-12-29
Form: S-4/A
Chunk 79
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 your vote to be counted at the
American Water special meeting.

Holders of record may submit their proxy by telephone by calling (800) 690-6903. Holders of record may also submit their
proxy via the Internet (see proxy card for instructions). In order for holders of record to vote their shares by telephone or via the Internet, they will need the 16-digit control number included on the
enclosed proxy card (which is unique to each American Water shareholder of record to ensure all voting instructions are genuine and to prevent duplicate voting). If a holder of record chooses to submit a proxy by telephone or via the Internet, the
proxy must be received by 11:59 p.m., Eastern time on February 9, 2026 in order to be counted at the American Water special meeting.

To vote during
the American Water special meeting, follow the instructions available on the American Water special meeting website at www.virtualshareholdermeeting.com/AWK2026SM. To be admitted to the American Water special meeting, holders of record must
provide their 16-digit control number. We recommend holders of record submit their vote by proxy prior to the date of the American Water special meeting even if they plan to attend the virtual American Water
special meeting.

Beneficial Holders (in “Street Name”)

If you hold shares of American Water common stock through an intermediary, you will receive a voting instruction form from your intermediary. The form will
explain how to direct the voting of your shares through the intermediary, which may include the ability to provide voting instructions via the Internet or by telephone. You may not vote for shares held in “street name” by returning a
proxy card, or by returning a voting instruction form directly to American Water. Your intermediary is obligated to provide you with a voting instruction form for you to instruct the record holder on how to vote your shares.

If your shares of American Water common stock are held in “street name” and you want to vote on the share issuance proposal or the American Water
adjournment proposal, you MUST indicate how you wish your shares to be voted. The intermediary will vote shares held by you in “street name” in accordance with your voting instructions, as indicated on your signed voting instruction form
or by the instructions you provide via the Internet or by telephone. Absent such instructions, NYSE rules prohibit an intermediary from exercising discretion to cast a vote with respect to your shares held in street name on non-routine matters. In
that case, a proxy submitted by