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HTONasdaqWater SupplyFiscal year ends December 31

H2O AMERICA

Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Jul 28, 2026
$55.88−1.81 (-3.14%)

Close on Oct 19, 2026

Market cap
$2.40B
P/E (TTM)
19.7
Dividend yield
3.01%

Ownership

Institutional holdings as of Jun 30, 2026, from 13F filings

Held by institutions
100.0%
44M of 42M shares
Institutional holders
314
46 new, 39 sold out
Net institutional buying
-0M
In Q2 2026
Insider trades, 12 months
6 buys · 3 sales
Net bought $7.93M

Shares held by institutions

Holders of more than 5%

Latest Schedule 13D (active) or 13G (passive) filed by each holder

HolderShares% of classFilingAs of
BlackRock, Inc.6,612,89515.80%13G (passive) amendmentJun 30, 2026
GIP Atlas Holdings Limited4,675,46911.17%13G (passive) amendmentSep 21, 2026
ATLAS Infrastructure Partners (UK) Ltd.4,532,08410.83%13G (passive) amendmentMar 4, 2026
Future Fund Board of Guardians2,603,8786.20%13G (passive)Mar 3, 2026
Melinda C. Moss2,552,0008.00%13G (passive) amendmentDec 31, 2023
Amundi1,998,1815.85%13G (passive)Jun 30, 2025

Top institutional holders

13F holdings as of Jun 30, 2026

HolderShares% of HTOValueChange% of portfolio
BlackRock, Inc.7,106,41316.98%$431.86M+688,6800.01%
ATLAS Infrastructure Partners (UK) Ltd.4,612,03511.02%$280.27M+79,9518.50%
Wellington Management Group Llp1,995,8394.77%$121.29M+382,2680.02%
ANTIPODES PARTNERS Ltd1,759,6024.20%$106.93M−489,4271.96%
Vanguard Capital Management LLC1,574,3773.76%$95.67M−112,8760.00%
State Street Corp1,554,6833.71%$94.48M+123,5320.00%
Cerity Partners LLC1,307,2273.12%$79.44M−2,4520.10%
Vanguard Portfolio Management LLC1,263,8983.02%$76.81M+94,8200.00%
Soros Fund Management LLC1,254,3683.00%$76.23M+25,6210.94%
Victory Capital Management Inc1,168,7342.79%$71.02M+256,8390.04%
Amundi1,105,3672.64%$67.16M−51,5850.02%
Geode Capital Management, LLC992,4652.37%$60.32M+95,3890.00%
Yaupon Capital Management LP851,8462.04%$51.77M−43,5891.02%
Two Sigma Investments, LP806,4931.93%$49.01M+556,1610.04%
Invesco Ltd.776,3171.85%$47.18M+75,7220.00%
Dimensional Fund Advisors LP714,6011.71%$43.43M+9,2560.01%
KBC Group NV610,1641.46%$37.08K+17,0030.08%
Morgan Stanley589,6521.41%$35.83M−191,5490.00%
Legal & General Group Plc571,5461.37%$34.79M+28,0640.01%
Resolution Capital Ltd515,7951.23%$31.34M+33,3350.58%

Institutional buying and selling by quarter

Positions opened, added to, reduced and closed by 13F filers

QuarterHoldersShares held% of sharesNew / addedReduced / closedShares boughtShares sold
Q2 202631444M100.0%46 / 12892 / 395M5M
Q1 202631345M100.0%71 / 14162 / 3121M3M
Q4 202527930M72.0%44 / 11092 / 405M3M
Q3 202528129M69.6%47 / 11391 / 243M2M
Q2 202526328M66.8%43 / 11382 / 323M2M
Q1 202525327M65.1%48 / 10067 / 313M2M
Q4 202424026M62.8%36 / 8885 / 452M2M
Q3 202425226M61.4%43 / 8487 / 188M1M
Q2 202422925M59.7%33 / 9077 / 292M3M
Q1 202422826M62.0%27 / 8886 / 262M1M
Q4 202322925M59.9%27 / 8287 / 202M1M
Q3 202322425M58.6%26 / 10164 / 222M2M

Top mutual fund and ETF holders

Latest monthly portfolio reports (Form N-PORT)

FundShares% of HTOValue% of fundAs of
iShares Core S&P Small-Cap ETF2,369,8805.66%$144.02M0.13%Jun 30, 2026
Vanguard Total Stock Market Index Fund1,064,0452.54%$64.66M0.00%Jun 30, 2026
iShares Russell 2000 ETF918,3152.19%$55.81M0.07%Jun 30, 2026
Victory Sycamore Small Company Opportunity Fund575,0001.37%$34.94M0.74%Jun 30, 2026
Vanguard Extended Market Index Fund450,8131.08%$27.40M0.03%Jun 30, 2026
First Trust Water ETF446,8841.07%$27.16M1.46%Jun 30, 2026
Fidelity Small Cap Index Fund387,2250.93%$23.75M0.07%Jul 31, 2026
State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF361,6980.86%$21.98M0.13%Jun 30, 2026
iShares S&P Small-Cap 600 Value ETF338,6100.81%$20.58M0.26%Jun 30, 2026
iShares Russell 2000 Value ETF333,9000.80%$20.29M0.14%Jun 30, 2026
Invesco S&P Global Water Index ETF278,3870.67%$17.07M1.63%Jul 31, 2026
Invesco Water Resources ETF275,1820.66%$16.88M0.84%Jul 31, 2026
Vanguard Utilities Index Fund255,8840.61%$14.80M0.14%May 31, 2026
Vanguard Dividend Appreciation Index Fund222,4510.53%$13.64M0.01%Jul 31, 2026
State Street(R) SPDR(R) S & P 600(TM) Small Cap Value ETF202,8680.48%$12.33M0.26%Jun 30, 2026

Officers, directors and major owners

People who filed Forms 3, 4 or 5 in the last two years

NameRoleShares owned% of sharesLatest filing
Andrew F. WaltersChief Executive Officer, Director26,5610.06%Jul 6, 2026
Eric W. ThornburgPresident & CEO, Director78,4180.19%Mar 4, 2025
Megan MatternCAO, PAO and Controller13,6310.03%Aug 3, 2026
Ann P. KellyCFO and Treasurer9,9760.02%Jul 6, 2026
A. Kristen JohnsonChief Administrative Officer14,5650.03%Jun 3, 2026
Willie D. Brown Jr.VP & Gen Counsel13,5540.03%Mar 3, 2026
Bruce A. HaukPresident and COO15,4910.04%Mar 3, 2026
Craig J. PatlaPresident of CTWS5,2000.01%Jun 4, 2025
Tanya Moniz-WittenPresident, San Jose Water Co.12,8120.03%May 1, 2025
Douwe BusschopsChief Information Officer1,7680.00%Jan 6, 2025
Daniel B. MoreDirector17,0850.04%May 15, 2026
Nick Orlando RoweDirector2,4520.01%May 15, 2026
Hunt HeatherDirector11,2380.03%May 15, 2026
Mary Ann HanleyDirector11,5830.03%May 15, 2026
Carol P. WallaceDirector11,2380.03%May 15, 2026
Denise L. KrugerDirector6,9230.02%May 15, 2026
Carl GuardinoDirector9,1390.02%May 15, 2026
Rebecca A. KleinDirector9,2080.02%May 15, 2026
Gregory P. LandisDirector12,8030.03%May 15, 2025
ATLAS Holdings Ltd GIP–4,615,26511.03%Aug 19, 2026
Infrastructure Partners (UK) Ltd. ATLAS–4,615,26511.03%Aug 19, 2026

Insider trades

Common stock transactions reported on Form 4, newest first

InsiderDateTransactionSharesPriceValueShares after
Megan Mattern
CAO, PAO and Controller
Jul 30, 2026Tax withholding−1,154$61.97$71.51K13,631
ATLAS Holdings Ltd GIP
10% owner
Jul 7, 2026Buy+2,784$62.03$172.69K4,615,265
Infrastructure Partners (UK) Ltd. ATLAS
10% owner
Jul 7, 2026Buy+2,784$62.03$172.69K4,615,265
Ann P. Kelly
CFO and Treasurer
Jul 1, 2026Tax withholding−88$60.74$5.35K9,976
Andrew F. Walters
Chief Executive Officer, Director
Jul 1, 2026Returned to company−374$60.74$22.72K26,461
Infrastructure Partners (UK) Ltd. ATLAS
10% owner
Jul 1, 2026Buy+2,132$60.76$129.54K4,612,481
Infrastructure Partners (UK) Ltd. ATLAS
10% owner
Jul 1, 2026Sale−1,686$60.74$102.41K4,610,349
Andrew F. Walters
Chief Executive Officer, Director
Jun 5, 2026Gift−3,508––26,835
Infrastructure Partners (UK) Ltd. ATLAS
10% owner
May 29, 2026Buy+31,001$57.62$1.79M4,612,035
Infrastructure Partners (UK) Ltd. ATLAS
10% owner
May 29, 2026Sale−1,435$57.52$82.54K4,581,034
Mary Ann Hanley
Director
May 13, 2026Award+1,947––11,583
Hunt Heather
Director
May 13, 2026Award+1,947––11,238
Nick Orlando Rowe
Director
May 13, 2026Award+1,947––2,452
Denise L. Kruger
Director
May 13, 2026Award+1,947––6,923
Rebecca A. Klein
Director
May 13, 2026Award+1,947––9,208
Daniel B. More
Director
May 13, 2026Award+1,947––1,947
Carl Guardino
Director
May 13, 2026Award+1,947––9,139
Carol P. Wallace
Director
May 13, 2026Award+1,947––11,238
ATLAS Holdings Ltd GIP
10% owner
Apr 10, 2026Buy+50,385$59.06$2.98M4,582,469
Infrastructure Partners (UK) Ltd. ATLAS
10% owner
Apr 10, 2026Buy+50,385$59.06$2.98M4,582,469
Nick Orlando Rowe
Director
Mar 1, 2026Award+505––505
Megan Mattern
CAO, PAO and Controller
Feb 27, 2026Award+2,166––14,785
Ann P. Kelly
CFO and Treasurer
Feb 27, 2026Award+1,707––10,064
Bruce A. Hauk
President and COO
Feb 27, 2026Award+2,743––15,491
Bruce A. Hauk
President and COO
Feb 27, 2026Award+1,503––16,994
Bruce A. Hauk
President and COO
Feb 27, 2026Tax withholding−378$53.79$20.33K16,616
A. Kristen Johnson
Chief Administrative Officer
Feb 27, 2026Award+1,263––15,035
A. Kristen Johnson
Chief Administrative Officer
Feb 27, 2026Tax withholding−470$53.79$25.28K14,565
A. Kristen Johnson
Chief Administrative Officer
Feb 27, 2026Award+1,312––13,772
Willie D. Brown Jr.
VP & Gen Counsel
Feb 27, 2026Tax withholding−521$53.79$28.02K13,554
Willie D. Brown Jr.
VP & Gen Counsel
Feb 27, 2026Award+1,384––12,812
Willie D. Brown Jr.
VP & Gen Counsel
Feb 27, 2026Award+1,263––14,075
Andrew F. Walters
Chief Executive Officer, Director
Feb 27, 2026Award+5,950––29,244
Andrew F. Walters
Chief Executive Officer, Director
Feb 27, 2026Tax withholding−605$53.79$32.54K30,343
Andrew F. Walters
Chief Executive Officer, Director
Feb 27, 2026Award+1,704––30,948
Willie D. Brown Jr.
VP & Gen Counsel
Jan 3, 2026Tax withholding−178$49.86$8.88K11,428
Bruce A. Hauk
President and COO
Jan 3, 2026Tax withholding−152$49.86$7.58K12,748
Andrew F. Walters
Chief Executive Officer, Director
Jan 3, 2026Tax withholding−216$49.86$10.77K23,294
A. Kristen Johnson
Chief Administrative Officer
Jan 3, 2026Tax withholding−160$49.86$7.98K12,460
Willie D. Brown Jr.
VP & Gen Counsel
Jan 2, 2026Tax withholding−565$49.25$27.83K11,606
Ann P. Kelly
CFO and Treasurer
Jan 2, 2026Tax withholding−200$49.25$9.85K8,357
Bruce A. Hauk
President and COO
Jan 2, 2026Tax withholding−873$49.25$43.00K12,900
Andrew F. Walters
Chief Executive Officer, Director
Jan 2, 2026Tax withholding−682$49.25$33.59K23,510
A. Kristen Johnson
Chief Administrative Officer
Jan 2, 2026Tax withholding−514$49.25$25.31K12,620
Ann P. Kelly
CFO and Treasurer
Dec 1, 2025Tax withholding−581$46.86$27.23K8,557
Andrew F. Walters
Chief Executive Officer, Director
Nov 13, 2025Sale−2,100$47.22$99.16K24,192
Bruce A. Hauk
President and COO
Aug 22, 2025Tax withholding−116$50.98$5.91K13,773
Megan Mattern
CAO, PAO and Controller
Jul 30, 2025Award+2,356––2,356
Megan Mattern
CAO, PAO and Controller
Jul 30, 2025Award+10,263––12,619
Andrew F. Walters
Chief Executive Officer, Director
Jul 1, 2025Award+3,580––26,292
A. Kristen Johnson
Chief Administrative Officer
Jul 1, 2025Award+2,037––13,134
Ann P. Kelly
CFO and Treasurer
Jul 1, 2025Award+952––9,138
Bruce A. Hauk
President and COO
Jul 1, 2025Award+2,076––13,889
Rebecca A. Klein
Director
May 14, 2025Award+2,196––7,261
Gregory P. Landis
Director
May 14, 2025Award+2,196––12,803
Carl Guardino
Director
May 14, 2025Award+2,196––7,192
Carol P. Wallace
Director
May 14, 2025Award+2,196––9,291
Daniel B. More
Director
May 14, 2025Award+2,196––4,008
Hunt Heather
Director
May 14, 2025Award+2,196––9,291
Denise L. Kruger
Director
May 14, 2025Award+2,196––4,976

Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.

Planned insider sales

Notices of proposed sale filed on Form 144 before shares are sold

SellerFiledSharesMarket valuePlanned saleAcquired through
F. Walters Andrew
CEO, Director
Nov 13, 20252,100$98.72KNov 13, 2025Compensation
Craig J. Patla
Officer, President of CTWS
May 7, 20241,400$77.20KMay 7, 2024Restricted Stock Vesting
Thomas Guardino Carl
Director
May 3, 2023777$58.83KMay 3, 2023Restricted Stock Units