Transaction Details

Footnotes

Represents shares underlying an award of restricted stock units (RSUs) granted effective May 14, 2025, under the American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan. This award will vest in three approximately equal increments on January 31, 2026, 2027 and 2028, subject to continued employment on each vesting date and applicable continued vesting provisions in the event of retirement under specified circumstances. RSUs are settled solely by the delivery of one share of common stock per RSU (and may not be settled in cash). | Includes an aggregate of 93 shares acquired pursuant to the automatic reinvestment in shares of common stock of American Water Works Company, Inc. (the "Company") of cash dividends paid on Company common stock to the reporting person, including 26 of such shares that were purchased since the reporting person's last Form 4 and 67 of such shares that were inadvertently omitted from certain of the reporting person's prior Form 4s, which acquisitions are exempt from Section 16 of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16a-11 thereunder.