| SC 13G/A | 2024-02-13 | VANGUARD GROUP INC | AVISTA CORP | 9,526,035 | 12.3% | EDGAR |
| SC 13G/A | 2024-01-25 | STATE STREET CORP | AVISTA CORP | - | 6.0% | EDGAR |
| SC 13G/A | 2024-01-19 | BlackRock Inc. | AVISTA CORP | 15,042,850 | 19.4% | EDGAR |
| SC 13G/A | 2023-08-09 | STATE STREET CORP | AVISTA CORP | - | 6.2% | EDGAR |
| SC 13G | 2023-02-10 | STATE STREET CORP | AVISTA CORP | - | 16.4% | EDGAR |
| SC 13G/A | 2023-02-09 | VANGUARD GROUP INC | AVISTA CORP | 9,169,360 | 12.4% | EDGAR |
| SC 13G/A | 2023-01-26 | BlackRock Inc. | AVISTA CORP | 13,682,642 | 18.5% | EDGAR |
| SC 13G/A | 2023-01-20 | BlackRock Inc. | AVISTA CORP | 13,682,642 | 18.5% | EDGAR |
| SC 13G/A | 2022-05-10 | PUBLIC SECTOR PENSION INVESTMENT BOARD | AVISTA CORP | 3,513,924 | 4.9% | EDGAR |
| SC 13G/A | 2022-02-14 | PUBLIC SECTOR PENSION INVESTMENT BOARD | AVISTA CORP | 3,825,490 | 5.4% | EDGAR |
| SC 13G/A | 2022-02-09 | VANGUARD GROUP INC | AVISTA CORP | 8,230,974 | 11.6% | EDGAR |
| SC 13G/A | 2022-01-27 | BlackRock Inc. | AVISTA CORP | 13,291,445 | 18.8% | EDGAR |
| SC 13G | 2022-01-25 | BlackRock Inc. | AVISTA CORP | 13,291,445 | 18.8% | EDGAR |
| SC 13G | 2021-02-12 | PUBLIC SECTOR PENSION INVESTMENT BOARD | AVISTA CORP | 5,126,530 | 7.5% | EDGAR |
| SC 13G/A | 2021-02-10 | VANGUARD GROUP INC | AVISTA CORP | 7,573,332 | 11.0% | EDGAR |
| SC 13G | 2021-01-25 | BlackRock Inc. | AVISTA CORP | 12,290,393 | 17.9% | EDGAR |
| SC 13G/A | 2020-02-12 | VANGUARD GROUP INC | AVISTA CORP | 7,734,202 | 11.6% | EDGAR |
| SC 13G/A | 2020-02-04 | BlackRock Inc. | AVISTA CORP | 12,512,357 | 18.8% | EDGAR |
| SC 13G/A | 2019-02-11 | VANGUARD GROUP INC | AVISTA CORP | 7,236,292 | 11.0% | EDGAR |
| SC 13G/A | 2019-01-24 | BlackRock Inc. | AVISTA CORP | 11,585,719 | 17.6% | EDGAR |