Security key
784305104
- Type / Class
- Equity / Common Stock
- Shares outstanding
- 41,883,354
- Total 13F shares
- 44,736,850
- Share change
- +14,402,758
- Total reported value
- $2,624,390,981
- Put/Call ratio
- 283%
- Price per share
- $58.67
- Number of holders
- 313
- Value change
- +$851,778,795
- Number of buys
- 203
- Number of sells
- 94
Report period
Q1 2026
Institutions
313
Top holders
10
HTO full security history
Previous quarter: Q4 2025
H2O AMERICA SEC filings
H2O AMERICA company facts
Broader feeds
Reporting periods
Holder history for CUSIP 784305104
Recent filing periods:
Top shareholders of HTO - H2O AMERICA - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: 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.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13D/G
13F
|
Company |
14%
|
6,031,203
|
$353,850,680 | +$23,908,084 | 31 Mar 2026 | |
| ATLAS Infrastructure Partners (UK) Ltd. |
13F
13D/G
|
Company |
11%
from 13D/G
|
584,080
|
$28,614,079 | — | 31 Dec 2025 | |
| Future Fund Board of Guardians |
13D/G
|
— |
6.2%
|
2,603,878
|
— | $0 | 03 Mar 2026 | |
| Amundi |
13F
13D/G
|
Individual |
4.8%
from 13D/G
|
1,712,886
|
$83,936,749 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13D/G
13F
|
STATE STREET CORPORATION · Company |
4%
|
1,347,452
|
$73,260,965 | -$25,246,166 | 31 Mar 2025 | |
| Andrew F. Walters |
3/4/5
|
Chief Executive Officer, Director |
0.07%
|
30,443
|
$1,637,440 | -$99,162 | 27 Feb 2026 | |
| Bruce A. Hauk |
3/4/5
|
President and COO |
0.04%
|
16,616
|
$893,774 | — | 27 Feb 2026 | |
| Megan Mattern |
3/4/5
|
CAO, PAO and Controller |
0.04%
|
14,785
|
$782,274 | — | 27 Feb 2026 | |
| Kristen A. Johnson |
3/4/5
|
Chief Administrative Officer |
0.03%
|
14,565
|
$783,451 | — | 27 Feb 2026 | |
| Willie D. Brown Jr. |
3/4/5
|
VP & Gen Counsel |
0.03%
|
13,554
|
$729,069 | — | 27 Feb 2026 | |
| Tanya Moniz-Witten |
3/4/5
|
President, San Jose Water Co. |
0.03%
|
12,812
|
$726,952 | — | 30 Apr 2025 | |
| Gregory P. Landis |
3/4/5
|
Director |
0.03%
|
12,803
|
$684,960 | — | 14 May 2025 | |
| Ann P. Kelly |
3/4/5
|
CFO and Treasurer |
0.02%
|
10,064
|
$532,486 | — | 27 Feb 2026 | |
| VANGUARD GROUP INC |
13F
|
Company |
6.5%
|
2,731,868
|
$133,834,213 | — | 31 Dec 2025 | |
| Cerity Partners LLC |
13F
|
Company |
3.5%
|
1,445,802
|
$70,829,902 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
3.3%
|
1,368,180
|
$67,027,255 | — | 31 Dec 2025 | |
| NUANCE INVESTMENTS, LLC |
13F
|
Company |
2.2%
|
906,724
|
$44,420,404 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2%
|
831,812
|
$40,757,758 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
1.6%
|
658,935
|
$32,281,752 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
1.5%
|
646,559
|
$31,674,925 | — | 31 Dec 2025 | |
| Legal & General Group Plc |
13F
|
Company |
1.4%
|
568,822
|
$27,877,808 | — | 31 Dec 2025 | |
| COHEN & STEERS, INC. |
13F
|
Company |
1.3%
|
544,544
|
$26,677,000 | — | 31 Dec 2025 | |
| FIRST TRUST ADVISORS LP |
13F
|
Company |
1.2%
|
502,393
|
$24,612,232 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
1.2%
|
482,535
|
$23,639,389 | — | 31 Dec 2025 | |
| VICTORY CAPITAL MANAGEMENT INC |
13F
|
Company |
1.1%
|
468,342
|
$22,944,075 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
1%
|
433,757
|
$21,249,755 | — | 31 Dec 2025 | |
| KBC Group NV |
13F
|
Company |
1%
|
417,891
|
$20,472,000 | — | 31 Dec 2025 | |
| ANTIPODES PARTNERS Ltd |
13F
|
Company |
0.92%
|
383,905
|
$18,808,916 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.82%
|
342,958
|
$16,801,513 | — | 31 Dec 2025 | |
| Assenagon Asset Management S.A. |
13F
|
Company |
0.66%
|
276,841
|
$13,562,441 | — | 31 Dec 2025 | |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.61%
|
254,823
|
$12,483,779 | — | 31 Dec 2025 | |
| Resolution Capital Ltd |
13F
|
Company |
0.56%
|
234,455
|
$11,485,950 | — | 31 Dec 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.47%
|
196,911
|
$9,646,670 | — | 31 Dec 2025 | |
| CIBC Private Wealth Group LLC |
13F
|
Company |
0.44%
|
183,639
|
$8,996,475 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.44%
|
183,106
|
$8,970,354 | — | 31 Dec 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.44%
|
182,787
|
$8,954,735 | — | 31 Dec 2025 | |
| SCHRODER INVESTMENT MANAGEMENT GROUP |
13F
|
Company |
0.4%
|
166,238
|
$8,188,884 | — | 31 Dec 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
0.38%
|
158,701
|
$7,774,763 | — | 31 Dec 2025 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.37%
|
154,671
|
$7,577,333 | — | 31 Dec 2025 | |
| GABELLI FUNDS LLC |
13F
|
Company |
0.35%
|
147,655
|
$7,233,618 | — | 31 Dec 2025 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
0.33%
|
136,876
|
$6,705,555 | — | 31 Dec 2025 | |
| ProShare Advisors LLC |
13F
|
Company |
0.32%
|
134,572
|
$6,592,682 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.28%
|
115,719
|
$5,669,074 | — | 31 Dec 2025 | |
| PUBLIC SECTOR PENSION INVESTMENT BOARD |
13F
|
Company |
0.28%
|
115,268
|
$5,646,979 | — | 31 Dec 2025 | |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.27%
|
112,841
|
$5,528,081 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0.27%
|
112,387
|
$5,505,840 | — | 31 Dec 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.24%
|
101,216
|
$4,958,567 | — | 31 Dec 2025 | |
| RHUMBLINE ADVISERS |
13F
|
Company |
0.24%
|
101,201
|
$4,957,820 | — | 31 Dec 2025 | |
| Yaupon Capital Management LP |
13F
|
Company |
0.24%
|
99,884
|
$4,893,317 | — | 31 Dec 2025 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
0.23%
|
96,903
|
$4,747,280 | — | 31 Dec 2025 |
Institutional Holders of H2O AMERICA - Common Stock (HTO) as of Q1 2026
As of 31 Mar 2026,
H2O AMERICA - Common Stock (HTO) was held by
313 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
44,736,850 shares.
The largest 10 holders included
BlackRock, Inc., ATLAS Infrastructure Partners (UK) Ltd., ANTIPODES PARTNERS Ltd, VANGUARD CAPITAL MANAGEMENT LLC, WELLINGTON MANAGEMENT GROUP LLP, COHEN & STEERS, INC., STATE STREET CORP, Cerity Partners LLC, SOROS FUND MANAGEMENT LLC, and VANGUARD PORTFOLIO MANAGEMENT LLC.
This page lists
313
institutional shareholders reporting positions in this security
for the Q1 2026 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
281
Q1 2026 holders
313
Holder diff
32
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 Value $ | Q1 2026 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.