Company: AWK
Filing Date: 2025-10-27
Form Type: 425
Source: 0001193125-25-250717
Chunk: 2

Company: American Water Works Company, Inc.
Filing Date: 2025-10-27
Form: 425
Chunk 2
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, as well as the experience and knowledge base at both 
 companies, we expect a smooth integration process.                                                             |

| • |     | In the meantime, we will all stay focused on what both companies do best – serving our customers with safe, 
 reliable, cost-effective services.                                                                          |

Chris Franklin

| • |     | To close, we believe this is a compelling combination. Together, we will achieve more than either company could 
 achieve on their own.                                                                                           |

| • |     | We look forward to the many opportunities ahead. |

John Griffith

| • |     | Thank you to all of our stakeholders for your continued support. |

| • |     | Together, we’re building something extraordinary. We can’t wait to get started. |

Cautionary Statement Regarding Forward-Looking Statements Certain statements included in this communication are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, Section 21E of the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995. In some cases, these forward-looking statements can be identified by words with prospective meanings such as “intend,” “plan,” “estimate,” “believe,” “anticipate,” “expect,” “predict,” “project,” “propose,” “assume,” “forecast,” “outlook,” “future,” “pending,” “goal,” “objective,” “potential,” “continue,” “seek to,” “may,” “can,” “will,” “should” and “could,” or the negative of such terms or other variations or similar expressions. Forward-looking statements may relate to, among other things: statements about the benefits of the proposed merger, including future financial and operating results; the parties’ respective plans, objectives, expectations and intentions; the expected timing and likelihood of completion of the merger and related transactions; the results of any strategic review; expected synergies of the proposed merger; the timing and result of various regulatory proceedings related to the proposed merger, and other general rate cases, filings for infrastructure surcharges and other governmental agency authorizations and proceedings, and filings to address regulatory lag; the combined company’s ability to execute its current

and long-term business, operational, capital expenditures and growth plans and strategies; the amount, allocation and timing of projected capital expenditures and related funding requirements;
the future impacts of increased or increasing transaction and financing costs associated with the proposed merger or otherwise, as well as inflation and interest rates;