| SC 13G/A | 2024-02-13 | VANGUARD GROUP INC | American Water Works Company, Inc. | 24,022,075 | 12.3% | EDGAR |
| SC 13G/A | 2024-01-30 | STATE STREET CORP | American Water Works Company, Inc. | - | 5.7% | EDGAR |
| SC 13G/A | 2024-01-24 | BlackRock Inc. | American Water Works Company, Inc. | 18,438,252 | 9.5% | EDGAR |
| SC 13G/A | 2023-02-09 | VANGUARD GROUP INC | American Water Works Company, Inc. | 22,721,992 | 12.5% | EDGAR |
| SC 13G/A | 2023-02-08 | STATE STREET CORP | American Water Works Company, Inc. | - | 5.8% | EDGAR |
| SC 13G/A | 2023-01-27 | BlackRock Inc. | American Water Works Company, Inc. | 16,708,358 | 9.2% | EDGAR |
| SC 13G/A | 2023-01-25 | BlackRock Inc. | American Water Works Company, Inc. | 16,708,358 | 9.2% | EDGAR |
| SC 13G/A | 2022-02-10 | STATE STREET CORP | American Water Works Company, Inc. | - | 5.4% | EDGAR |
| SC 13G/A | 2022-02-09 | VANGUARD GROUP INC | American Water Works Company, Inc. | 21,525,980 | 11.9% | EDGAR |
| SC 13G/A | 2022-02-03 | BlackRock Inc. | American Water Works Company, Inc. | 16,192,763 | 8.9% | EDGAR |
| SC 13G/A | 2021-02-10 | VANGUARD GROUP INC | American Water Works Company, Inc. | 21,180,295 | 11.7% | EDGAR |
| SC 13G | 2021-02-05 | STATE STREET CORP | American Water Works Company, Inc. | - | 5.2% | EDGAR |
| SC 13G/A | 2020-03-04 | BlackRock Inc. | American Water Works Company, Inc. | 15,799,262 | 8.7% | EDGAR |
| SC 13G | 2020-02-13 | STATE STREET CORP | American Water Works Company, Inc. | - | 5.5% | EDGAR |
| SC 13G/A | 2020-02-11 | VANGUARD GROUP INC | American Water Works Company, Inc. | 22,464,194 | 12.4% | EDGAR |
| SC 13G/A | 2019-03-15 | BlackRock Inc. | American Water Works Company, Inc. | 14,335,088 | 7.9% | EDGAR |
| SC 13G/A | 2019-02-11 | VANGUARD GROUP INC | American Water Works Company, Inc. | 19,832,410 | 11.0% | EDGAR |
| SC 13G/A | 2018-02-13 | STATE STREET CORP | American Water Works Company, Inc. | - | 4.8% | EDGAR |
| SC 13G/A | 2018-02-12 | VANGUARD GROUP INC | American Water Works Company, Inc. | 18,543,491 | 10.4% | EDGAR |
| SC 13G/A | 2018-02-08 | BlackRock Inc. | American Water Works Company, Inc. | 13,263,914 | 7.4% | EDGAR |