Security key
784305104
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 44,736,550
- Total 13F value
- $2,624,373,380
- Share change
- +14,402,458
- Put/Call ratio
- 283%
- SEC-reported price per share
- $58.67
- Number of holders
- 312
- Value change
- +$851,761,194
- Number of buys
- 202
- Number of sells
- 94
- Shares outstanding
- 41,853,766
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
312
Top holders
10
HTO full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
H2O AMERICA SEC filings
H2O AMERICA company facts
Broader feeds
Reporting periods
Holder history for CUSIP 784305104
Recent filing periods:
Ownership snapshot
Top reported holders of HTO - H2O AMERICA - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
ATLAS Infrastructure Part...
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
03 Mar 2026
13F
13D/G
3/4/5
Lead comparable stake: 11%
13D/G row: ATLAS Infrastructure Partners (UK) Ltd.
Showing 1-6 of 15 holder rows.
Quick read
ATLAS Infrastructure Partners (UK) Ltd. leads the comparable SEC ownership view at 11%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens ATLAS Infrastructure Partners (UK) Ltd.'s linked filing trail.
Comparable ownership
Top 5
ATLAS Infrastructure Partners (UK...
11%
Future Fund Board of Guardians
6.2%
Amundi
4.8%
STATE STREET CORP
4%
Bruce A. Hauk
0.04%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| ATLAS Infrastructure Partners (UK) Ltd. |
13F
13D/G
Company
|
11%
from 13D/G
|
$28,614,079
584,080 shares
|
— | 31 Dec 2025 |
| Future Fund Board of Guardians |
13D/G
|
6.2%
|
—
2,603,878 shares
|
$0 | 03 Mar 2026 |
| Amundi |
13F
13D/G
Individual
|
4.8%
from 13D/G
|
$83,936,749
1,712,886 shares
|
— | 31 Dec 2025 |
| STATE STREET CORP |
13D/G
13F
STATE STREET CORPORATION · Company
|
4%
|
$73,260,965
1,347,452 shares
|
-$25,246,166 | 31 Mar 2025 |
| Bruce A. Hauk |
3/4/5
President and COO
|
0.04%
|
$893,774
16,616 shares
|
— | 27 Feb 2026 |
| Megan Mattern |
3/4/5
CAO, PAO and Controller
|
0.04%
|
$782,274
14,785 shares
|
— | 27 Feb 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
312
Shares
44,736,550
Rows available
312
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q1 2026 Across Filers
Q1 2026 holders
312
Q1 2026 holders
312
Holder diff
0
| Investor | Q1 2026 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend