H2O America
Operates regulated water utilities across California, Connecticut, Maine, and Texas.
$63.02
After-hours close−0.53 (−0.83%)
At close$63.55(+0.71%)
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Breakdown13F · Form 4
Institutions —Insiders 0.40%
Shares outstanding 41.86M · Float 36.49M · 87.2% free float
A Form 4 total here can count shares the filer formally disclaims — an award voted by proxy, for instance — which the holder's own Schedule 13D/G excludes, so where the two disagree the schedule's smaller figure is used.
Institutions13F
No 13F holders on record.
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 14.40% | 6.03M | 13G | Apr 27, 2026 ↗ |
| ATLAS Infrastructure Partners (UK) Ltd. | 10.83% | 4.53M | 13G | Apr 8, 2026 ↗ |
| Future Fund Board of Guardians | 6.20% | 2.60M | 13G | Mar 6, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| GIP ATLAS Holdings Ltd | 10 percent owner | 4.58M | 10.95% | Apr 22, 2026 |
| ATLAS Infrastructure Partners (UK) Ltd. | 10 percent owner | 4.53M | 10.83% | Jul 8, 2026 |
| Andrew F. Walters | director, officer: Chief Executive Officer | 26.5K | 0.06% | Jul 6, 2026 |
| Bruce A. Hauk | officer: President and COO | 15.5K | 0.04% | Mar 3, 2026 |
| A. Kristen Johnson | officer: Chief Administrative Officer | 13.8K | 0.03% | Mar 3, 2026 |
| Megan Mattern | officer: CAO, PAO and Controller | 13.6K | 0.03% | Aug 3, 2026 |
| Willie D. Jr. Brown | officer: VP & Gen Counsel | 12.8K | 0.03% | Mar 3, 2026 |
| Gregory P. Landis | director | 12.8K | 0.03% | May 15, 2025 |
| Mary Ann Hanley | director | 11.6K | 0.03% | May 15, 2026 |
| Hunt Heather | director | 11.2K | 0.03% | May 15, 2026 |
2 ten-percent owners hold 9.11M shares by Form 4 — the 13D/G table above shows those stakes, the figure above counts officers and directors only
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Jul 7, 2026 | ATLAS Infrastructure Partners (UK) Ltd.10 percent owner | Purchase | 2,784 | $62.03 | 4,615,265 |
| Jul 1, 2026 | ATLAS Infrastructure Partners (UK) Ltd.10 percent owner | Sale | 1,686 | $60.74 | 4,610,349 |
| Jul 1, 2026 | ATLAS Infrastructure Partners (UK) Ltd.10 percent owner | Purchase | 2,132 | $60.76 | 4,612,481 |
| May 29, 2026 | ATLAS Infrastructure Partners (UK) Ltd.10 percent owner | Sale | 1,435 | $57.52 | 4,581,034 |
| May 29, 2026 | ATLAS Infrastructure Partners (UK) Ltd.10 percent owner | Purchase | 31,001 | $57.62 | 4,612,035 |
| Apr 10, 2026 | GIP ATLAS Holdings Ltd10 percent owner | Purchase | 50,385 | $59.06 | 4,582,469 |
| Apr 10, 2026 | ATLAS Infrastructure Partners (UK) Ltd.10 percent owner | Purchase | 50,385 | $59.06 | 4,582,469 |
| Nov 13, 2025 | Andrew F. Waltersdirector, officer: Chief Executive Officer | Sale | 2,100 | $47.22 | 24,192 |
CongressHouse and Senate disclosures
Not reported.