Skip to main content
HTO logo

HTO · H2o America · Shareholders & Ownership

Track HTO — free
$57.01 +0.14 (+0.25%)
Market Cap
$2.38B
Shares
41.84M
Volume · Oct 21 77.69K Avg daily vol (3M) 441.84K

Every disclosed holder of HTO in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns HTO

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.

Holder group Shares % Out
Institutional (13F) 44,018,066 105.21%
Insiders (Forms 3, 4, 5) 4,867,239 11.63%
13D/G-only blocks 2,552,000 6.10%
Remaining 9,597,058 -22.94%
Registered funds (N-PORT, not summed) 14,546,627 34.77%

Shares outstanding: 41,840,247, the issuer's latest cover-page count restated onto today's split basis.

Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of HTO

# Holder Shares
1
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
7,106,413
1.1
BlackRock, Inc.
13G CIK 2012383 · Holding company · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
6,612,895
1.2
iShares Core S&P Small-Cap ETF
Fund S000004313 · Registered fund · Jun 30, 2026
iShares Trust, not summed
2,369,880
1.3
iShares Russell 2000 ETF
Fund S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
918,315
1.4
iShares S&P Small-Cap 600 Value ETF
Fund S000004316 · Registered fund · Jun 30, 2026
iShares Trust, not summed
338,610
1.5
iShares Russell 2000 Value ETF
Fund S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
333,900
2
ATLAS Infrastructure Partners (UK) Ltd.
13G CIK 1924953 · Registered investment adviser · Sep 21, 2026
Rule 13d-1(b), qualified institution, not summed
4,675,469
2.1
ATLAS Infrastructure Partners (UK) Ltd.
Insider CIK 1924953 · Jul 7, 2026
10% Owner, issuer-wide, not summed
4,615,265
2.2
ATLAS Infrastructure Partners (UK) Ltd.
13F CIK 1924953 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
4,612,035
3
GIP ATLAS Holdings Ltd
Insider CIK 2131211 · Apr 10, 2026
10% Owner, issuer-wide
4,582,469
4
Melinda C. Moss
13G CIK 1965732 · Unknown · Dec 31, 2023
Rule 13d-1(c), passive investor
2,552,000
5
WELLINGTON MANAGEMENT GROUP LLP
13F CIK 902219 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,995,839
6
ANTIPODES PARTNERS Ltd
13F CIK 1652442 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,759,602
7
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,574,377
8
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
1,554,683
8.1
State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF
Fund S000041317 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
361,698
8.2
State Street(R) SPDR(R) S & P 600(TM) Small Cap Value ETF
Fund S000006974 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
202,868
8.3
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
11,587
8.4
State Street(R) SPDR(R) Portfolio S&P 1500(R) Composite Stock Market ETF
Fund S000006973 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
7,316
8.5
State Street(R) SPDR(R) S&P(R) 1500 Value Tilt ETF
Fund S000033831 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
947
9
Cerity Partners LLC
13F CIK 1566475 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,307,227
10
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,263,898
11
SOROS FUND MANAGEMENT LLC
13F CIK 1029160 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,254,368
12
VICTORY CAPITAL MANAGEMENT INC
13F CIK 1040188 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,168,734
12.1
Victory Sycamore Small Company Opportunity Fund
Fund S000000800 · Registered fund · Jun 30, 2026
Victory Portfolios, not summed
575,000
12.2
Victory RS Partners Fund
Fund S000053561 · Registered fund · Jun 30, 2026
Victory Portfolios, not summed
184,650
12.3
Victory Market Neutral Income Fund
Fund S000037769 · Registered fund · Jun 30, 2026
Victory Portfolios II, not summed
159,796
12.4
Victory Small Cap Stock Fund
Fund S000012914 · Registered fund · Jul 31, 2026
Victory Portfolios III, not summed
26,530
12.5
Victory Extended Market Index Fund
Fund S000012941 · Registered fund · Jul 31, 2026
Victory Portfolios III, not summed
4,511
13
Amundi
13F CIK 1330387 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,105,367
13.1
KBI GLOBAL INVESTORS AQUARIUS FUND
Fund S000063187 · Registered fund · Jul 31, 2026
ADVISORS' INNER CIRCLE III, not summed
14,227
14
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,064,045
15
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
992,465
16
Yaupon Capital Management LP
13F CIK 1755028 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
851,846
17
TWO SIGMA INVESTMENTS, LP
13F CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
806,493
18
Invesco Ltd.
13F CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
776,317
18.1
Invesco S&P Global Water Index ETF
Fund S000060819 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
278,387
18.2
Invesco Water Resources ETF
Fund S000003048 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
275,182
18.3
Invesco RAFI US 1500 Small-Mid ETF
Fund S000013120 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
44,484
18.4
Invesco S&P SmallCap Low Volatility ETF
Fund S000030965 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
34,851
18.5
Invesco S&P SmallCap 600 Revenue ETF
Fund S000064596 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
15,858
19
DIMENSIONAL FUND ADVISORS LP
13F CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
714,601
19.1
U.S. SMALL CAP PORTFOLIO
Fund S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
162,672
19.2
Dimensional U.S. Small Cap ETF
Fund S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
141,548
19.3
U.S. MICRO CAP PORTFOLIO
Fund S000000948 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
127,655
19.4
Dimensional U.S. Core Equity 2 ETF
Fund S000070903 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
41,937
19.5
U.S. CORE EQUITY 2 PORTFOLIO
Fund S000000980 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
38,156
20
KBC Group NV
13F CIK 1411133 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
610,164
21
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
589,652
21.1
E*TRADE No Fee Total Market Index Fund
Fund S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
37
22
Legal & General Group Plc
13F CIK 764068 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
571,546
23
Resolution Capital Ltd
13F CIK 1612389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
515,795
24
Zimmer Partners, LP
13F CIK 1565854 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
513,500
25
BARROW HANLEY MEWHINNEY & STRAUSS LLC
13F CIK 313028 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
504,368
26
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
503,037
26.1
Schwab U.S. Small-Cap ETF
Fund S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
178,539
26.2
Schwab Fundamental U.S. Small Company ETF
Fund S000040878 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
94,107
26.3
Schwab Small-Cap Index Fund
Fund S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
86,042
26.4
Schwab Fundamental U.S. Small Company Index Fund
Fund S000016767 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
27,531
26.5
Schwab Total Stock Market Index Fund
Fund S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
24,707
27
SCHRODER INVESTMENT MANAGEMENT GROUP
13F CIK 1086619 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
494,524
28
FIRST TRUST ADVISORS LP
13F CIK 1125816 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
490,833
28.1
First Trust Water ETF
Fund S000017178 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund, not summed
446,884
28.2
First Trust Small Cap Core AlphaDEX Fund
Fund S000017339 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
43,064
28.3
First Trust Small Cap Value AlphaDEX Fund
Fund S000031807 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
11,576
28.4
First Trust Multi Cap Value AlphaDEX Fund
Fund S000017342 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
2,002
28.5
First Trust Horizon Managed Volatility Small/Mid ETF
Fund S000068212 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded Fund III, not summed
842
29
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
450,813
30
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
436,328
30.1
Goldman Sachs Multi-Manager Real Assets Strategy Fund
Fund S000049147 · Registered fund · Jul 31, 2026
Goldman Sachs Trust II, not summed
26,840
30.2
Multi-Manager U.S. Small Cap Equity Fund
Fund S000051363 · Registered fund · Apr 30, 2026
Goldman Sachs Trust II, not summed
14,975
30.3
Goldman Sachs Absolute Return Tracker Fund
Fund S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
4,638
31
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
415,397
31.1
Small Cap Index Fund
Fund S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
17,934
31.2
FlexShares STOXX Global Broad Infrastructure Index Fund
Fund S000042071 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
14,736
31.3
Small Cap Core Fund
Fund S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
3,495
31.4
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
3,078
32
Nuveen, LLC
13F CIK 1871926 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
337,662
32.1
College Retirement Equities Fund - Total Global Stock Account
Fund S000005080 · Registered fund · Jun 30, 2026
College Retirement Equities Fund, not summed
161,032
32.2
Nuveen Small Cap Value Opportunities Fund
Fund S000000606 · Registered fund · Jun 30, 2026
Nuveen Investment Trust, not summed
65,943
32.3
Nuveen Small Cap Blend Index Fund
Fund S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
46,957
32.4
Nuveen Equity Index Fund
Fund S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
27,689
32.5
TIAA Separate Account VA-1 - Stock Index Account
Fund S000005098 · Registered fund · Jun 30, 2026
TIAA Separate Account VA-1, not summed
466
33
RAYMOND JAMES FINANCIAL INC
13F CIK 720005 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
315,073
34
COHEN & STEERS, INC.
13F CIK 1284812 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
310,870
35
VANGUARD UTILITIES INDEX FUND
Fund S000004445 · Registered fund · May 31, 2026
VANGUARD WORLD FUND, not summed
255,884
36
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
253,621
37
MIROVA
13F CIK 1767843 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
244,550
38
VANGUARD DIVIDEND APPRECIATION INDEX FUND
Fund S000011322 · Registered fund · Jul 31, 2026
VANGUARD SPECIALIZED FUNDS, not summed
222,451
39
AQR CAPITAL MANAGEMENT LLC
13F CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
215,916
40
Bank of New York Mellon Corp
13F CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
206,376
41
PRINCIPAL FINANCIAL GROUP INC
13F CIK 1126328 · Insurance company · Jun 30, 2026
carried, not yet filed for the newest quarter
189,995
41.1
SmallCap Value Fund II
Fund S000007169 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
30,805
41.2
SmallCap S&P 600 Index Fund
Fund S000007203 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
28,977
42
BW Gestao de Investimentos Ltda.
13F CIK 1568280 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
185,806
43
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC
13F CIK 1164833 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
183,553
43.1
Hotchkis and Wiley Small Cap Diversified Value Fund
Fund S000045868 · Registered fund · Jun 30, 2026
HOTCHKIS & WILEY FUNDS/DE/, not summed
46,900
44
BANK OF AMERICA CORP /DE/
13F CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
176,992
45
DUFF & PHELPS INVESTMENT MANAGEMENT CO
13F CIK 765443 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
175,972
46
Virtus Duff & Phelps Water Fund
Fund S000021463 · Registered fund · Jun 30, 2026
Virtus Strategy Trust, not summed
175,942
47
VANGUARD RUSSELL 2000 INDEX FUND
Fund S000030003 · Registered fund · May 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
171,364
48
VANGUARD TAX-MANAGED SMALL-CAP FUND
Fund S000004387 · Registered fund · Jun 30, 2026
VANGUARD TAX-MANAGED FUNDS, not summed
170,225
49
Squarepoint Ops LLC
13F CIK 1642575 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
170,129
50
Ausbil Investment Management Ltd
13F CIK 1966036 · Registered investment adviser · Sep 30, 2026
169,944

33 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 455 holders

Create a free account to page through every holder, filter by source and group by ultimate parent.

Key facts CIK 766829 CUSIP 784305104 13F (30d) 45 filings 45 filers Visit website Investor relations