Company: AWK
Filing Date: 2025-03-27
Form Type: DEF 14A
Source: 0001193125-25-064607
Chunk: 13

Company: American Water Works Company, Inc.
Filing Date: 2025-03-27
Form: DEF 14A
Chunk 13
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 broker from exercising discretion to cast a vote with respect to your shares. In that case, a proxy submitted by the broker with respect to your shares would indicate that the broker is unable to cast a vote with respect to the matter, which is commonly referred to as a “broker non-vote.” Under NYSE rules, Proposal 3 is considered a “routine matter,” and thus a broker would be permitted in its discretion to cast a vote on that proposal as to your shares in the event that you do not provide the broker with voting instructions. Accordingly, if your shares are held in street name, it is important that you provide voting instructions to the intermediary so that your vote will be counted. If you received more than one voting instruction form or Notice of Availability, your shares are likely registered in different names or with different addresses or are in more than one account. You must separately follow the foregoing voting procedures for each voting instruction form or Notice of Availability that you receive in order for all of your shares to be voted at the meeting. If you hold shares in street name and wish to vote your shares virtually at the meeting, you may vote online during the meeting as an authenticated shareholder by visiting www.virtualshareholdermeeting.com/AWK2025, entering your 16-digitcontrol number, and following the on-screeninstructions. The availability of online voting may depend on your intermediary’s specific voting procedures. Please contact your intermediary for information. REVOKING OR CHANGING A PROXY If you own shares in your own name (including shares you may hold through American Water Stock Direct, our dividend reinvestment and direct stock purchase plan), you may revoke or change any prior proxy,

regardless of how your proxy was originally submitted, by:

| · |     | sending a written statement to that effect to our Secretary, which must be received by us before the meeting; |

| 4 |     | AMERICAN WATER | 2025 PROXY STATEMENT |

| · |     | submitting a properly signed proxy card dated a later date; |

| · |     | submitting a later dated proxy via the Internet or by telephone; or |

| · |     | attending the meeting virtually as an authenticated shareholder and voting your shares online during the meeting. |

Please see “Communications, Shareholder Proposals and Company Information—Contacting Us or Our Transfer Agent” on page 73 of this proxy statement for more information on providing our Secretary with

written notice and “—Attending the Virtual Annual Meeting” beginning on page 1 of this proxy statement regarding