Institutional Ownership
H2o America
CUSIP 784305104COMHTOQ1 2026
13D / 13G Filings
35
Schedule 13D/13G on record
Beneficial Filers
13
Distinct reporting persons
Largest Stake
19.0%
Max % of class reported
Institutional Holders
305
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
35 filings · latest Mar 10, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Mar 10, 2026 | Atlas Infrastructure Partners (Uk) Ltd. | 13G | 10.8% | 4.53M | SEC |
| 2 | Mar 6, 2026 | Future Fund Board Of Guardians | 13G | 6.2% | 26.04M | SEC |
| 3 | Feb 17, 2026 | Amundi | 13G/A | 4.8% | 1.71M | SEC |
| 4 | Nov 14, 2025 | Amundi | 13G/A | 6.2% | 2.18M | SEC |
| 5 | Aug 13, 2025 | Amundi | 13G | 5.8% | 2.00M | SEC |
| 6 | May 13, 2025 | State Street Corporation | 13G | 4.0% | 1.35M | SEC |
| 7 | Apr 17, 2025 | Blackrock, Inc. | 13G/A | 16.7% | 5.62M | SEC |
| 8 | Feb 5, 2025 | Blackrock, Inc. | 13G/A | 19.0% | 6.32M | SEC |
| 9 | Feb 5, 2025 | State Street Corporation | 13G | 5.4% | 1.81M | SEC |
| 10 | Oct 18, 2024 | State Street Corp | 13G/A | 4.9% | 1.61M | SEC |
25 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for H2o America.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 6.42M | $376.53M |
| 2 | Atlas Infrastructure Partners (Uk) Ltd. | 4.53M | $265.90M |
| 3 | Antipodes Partners Ltd | 2.25M | $131.95M |
| 4 | Wellington Management Group LLP | 1.61M | $94.67M |
| 5 | State Street Corp | 1.43M | $83.97M |
| 6 | Cerity Partners LLC | 1.31M | $76.84M |
| 7 | Soros Fund Management LLC | 1.23M | $72.09M |
| 8 | Amundi | 1.16M | $67.88M |
| 9 | Zimmer Partners, LP | 1.00M | $58.73M |
| 10 | Victory Capital Management Inc | 911.9K | $53.50M |