Company: AWK
Filing Date: 2025-03-21
Form Type: 11-K
Source: 0001410636-25-000065
Chunk: 2

Company: American Water Works Company, Inc.
Filing Date: 2025-03-21
Form: 11-K
Chunk 2
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 750 |     | $ |             1,134 |

<div align='center'>The accompanying notes are an integral part of these financial statements.

4</div>

AMERICAN WATER WORKS COMPANY, INC. AND ITS DESIGNATED SUBSIDIARIES

#### 2017 NONQUALIFIED EMPLOYEE STOCK PURCHASE PLAN
Statements of Changes in Net Income and Plan Equity

(Dollars in thousands)

|                                           |     | For the Years Ended December 31, |    2024 |     |   |    2023 |     |   |    2022 |
|:------------------------------------------|:----|:---------------------------------|--------:|:----|:--|--------:|:----|:--|--------:|
| Plan equity, at the beginning of the year |     | $                                |   1,134 |     | $ |   1,202 |     | $ |   1,211 |
| Participants' contributions               |     |                                  |   9,671 |     |   |  10,208 |     |   |  10,471 |
| Distributions for stock purchases         |     |                                  | -10,055 |     |   | -10,276 |     |   | -10,480 |
| Net decrease                              |     |                                  |    -384 |     |   |     -68 |     |   |      -9 |
| Plan equity, at the end of the year       |     | $                                |     750 |     | $ |   1,134 |     | $ |   1,202 |

<div align='center'>The accompanying notes are an integral part of these financial statements.

5</div>

AMERICAN WATER WORKS COMPANY, INC. AND ITS DESIGNATED SUBSIDIARIES

#### 2017 NONQUALIFIED EMPLOYEE STOCK PURCHASE PLAN

#### Notes to the Financial Statements

#### Note 1: Description of Plan

#### General
The following description of the American Water Works Company, Inc. and its Designated Subsidiaries 2017 Nonqualified Employee Stock Purchase Plan (the “Plan”) provides only general information. Participants should refer to the plan document for a more complete description of the Plan’s provisions. The Plan was initially adopted by the Board of Directors (the “Board”) of American Water Works Company, Inc. (the “Company”) on February 15, 2017, was approved as such by the shareholders of the