Company: AWK
Filing Date: 2025-10-27
Form Type: 425
Source: 0001193125-25-250717
Chunk: 0

Company: American Water Works Company, Inc.
Filing Date: 2025-10-27
Form: 425
Chunk 0
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Filed by American Water Works Company, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Essential Utilities, Inc. Commission File No.: 001-06659 Date: October 27, 2025 The following is a transcript of a video published on a website regarding the merger between American Water Works Company, Inc. and Essential Utilities, Inc. on October 27, 2025. John Griffith

| • |     | Hi everyone. I’m John Griffith, President and CEO of American Water. |

Chris Franklin

| • |     | And I’m Chris Franklin, Chairman and CEO of Essential Utilities. |

John Griffith

| • |     | We’re very pleased to be here together to share more about our merger announcement. |

| • |     | This combination will create a company that is well positioned to grow and meet the evolving needs of our 
 customers and the communities we serve.                                                                   |

| • |     | The combined company will be a leading regulated U.S. utility. Together we will serve 4.7 million water and            
 wastewater connections with a footprint across 17 states and will continue to proudly serve 18 military installations. |

| • |     | The combined entity will leverage proven strategies and an expanded set of resources to help solve water and 
 wastewater challenges across the country.                                                                    |

Chris Franklin

| • |     | I also want to express my support for this combination and my optimism about the future for our customers, 
 shareholders and employees.                                                                                |

| • |     | American Water and Essential are terrific partners with complementary strengths and values. |

| • |     | Uniting our two companies will advance our longstanding track record of delivering safe and reliable services. |

| • |     | With a larger footprint and customer base, the combined company would have a water and wastewater rate base of 
 approximately $29.3 billion as of the end of 2024.                                                             |

| • |     | Together, we will have operational expertise, financial strength and regulatory credibility to continuously 
 improve our infrastructure and meet the challenges facing our industry.                                     |

| • |     | And we’ll all do this while we continue to provide superior customer service at affordable rates. |

| • |     | There will be no immediate change in customer rates as a result of the merger, and the combined company will be                                                            
 better able to maintain an average customer water bill that