Company: AWK
Filing Date: 2025-12-29
Form Type: S-4/A
Source: 0001193125-25-332292
Chunk: 214

Company: American Water Works Company, Inc.
Filing Date: 2025-12-29
Form: S-4/A
Chunk 214
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above and in the accompanying notes, the preliminary allocation of the purchase price reflected in the unaudited pro forma condensed combined financial information is subject to adjustment and may vary significantly from the actual purchase price
allocation that will be recorded upon completion of the merger. The unaudited pro forma condensed combined financial information is presented for illustrative purposes only and does not (i) purport to represent the combined company’s
consolidated results of operations or consolidated financial position that would have occurred had the merger been consummated on the dates assumed or to project the combined company’s consolidated results of operations or consolidated
financial position for any future date or period, or (ii) reflect the costs of any integration activities or cost savings or synergies that may result from or be achieved because of the merger.

The pro forma adjustments reflect transaction accounting adjustments related to the merger, which are discussed in further detail below. Amounts presented
reflect the accounting for the acquisition of Essential by American Water.

American Water and Essential have not had any historical material relationship
prior to the merger. Accordingly, no pro forma adjustments were required to eliminate activities between the companies.

147

Unaudited Pro Forma Condensed Combined Balance Sheet As of September 30, 2025 (in millions)

| ASSETS                                                                       |     | American Water 
 Historical     |        |   |     | Essential  
 Historical |        |   |     | Presentation 
 Adjustments  |      |   |     |    |     | Transaction 
 Accounting  
 Adjustments |        |   |     |    |   |     | Transaction 
 Financing   
 Adjustments |     |     |    |     | Pro      
 Forma    
 Combined |         |   |
|:-----------------------------------------------------------------------------|:----|:---------------|-------:|:--|:----|:-----------|-------:|:--|:----|:-------------|-----:|:--|:----|:---|:----|:------------|-------:|:--|:----|:---|:--|:----|:------------|----:|:----|:---|:----|:---------|--------:|:--|
| Property, plant and equipment                                                |     | $              | 36,895 |   |     | $          | 17,268 |   |     |              |      |   |     |    |     |             |        |   |     |    |   |     |             |     |     |    |     |