HolderBook

H2O AMERICA (HTO)

Institutional ownership reported to the SEC as of Q3 2026, across 32 quarters.

9
Reporting holders
$11.4M
Reported value
0.0%
Calls
0.0%
Puts
-310
Holder change

Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.

Holders

Download these holders as CSV

FilerValueShares Their book Held Change
Ausbil Investment Management Ltd$10.5M169,9445.27%4q-16.3%-$2.0M
Farther Finance Advisors, LLC$409.4K6,6430.00%11q+561.7%+$347.5K
Ridgewood Investments LLC$227.8K3,6970.08%4q-45.3%-$189.0K
GAMMA Investing LLC$211.5K3,4320.01%12q+0.7%+$1.4K
Versant Capital Management, Inc$60.4K9800.01%8qHELD
MassMutual Private Wealth & Trust, FSB$7.3K1190.00%16q-7.8%
GK Wealth Management LLC$2.8K450.00%newNEW
GILPIN WEALTH MANAGEMENT, LLC$30950.00%4qHELD
Davis Capital Management$12320.00%2qHELD

Five percent filings

Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →

FiledFormFiler % of class
2026-09-2213G/AATLAS Infrastructure Partners (UK) Ltd.with 1 co-filers11.2%
2026-08-1913G/AATLAS Infrastructure Partners (UK) Ltd.with 1 co-filers11.0%
2026-07-2813G/ABlackRock, Inc.15.8%

What the company announced

Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.

FiledEvent dateWhatSource
2026-10-012026-10-01Acquisition or disposal completedfiling

What the insiders did

Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.

Ten percent owners and entities

Usually an institution that crossed a reporting threshold, or a company taking a strategic stake, rather than an individual with a view.

DateInsiderRoleSideSharesValue
2026-05-29ATLAS Infrastructure Partners (UK) Ltd.10% ownerBought31,001$1.8M
2026-07-07ATLAS Infrastructure Partners (UK) Ltd.10% ownerBought2,784$172.7K
2026-07-07ATLAS Infrastructure Partners (UK) Ltd.10% ownerBought2,784$172.7K
2026-07-01ATLAS Infrastructure Partners (UK) Ltd.10% ownerBought2,132$129.5K
2026-07-01ATLAS Infrastructure Partners (UK) Ltd.10% ownerSold1,686$102.4K

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q3 20269$11.4M184,8671230.0%
Q2 2026319$2.8B46,741,50044122890.1%
Q1 2026315$2.7B44,978,04863140582.2%
Q4 2025281$1.5B30,191,95935100910.1%
Q3 2025279$1.4B29,174,94347108870.0%
Q2 2025261$1.5B27,916,26341110750.6%
Q1 2025249$1.5B27,235,3514595650.0%
Q4 2024238$1.3B26,237,1732782830.0%
Q3 2024249$1.5B25,661,0464079840.0%
Q2 2024227$1.4B24,938,3672988730.0%
Q1 2024226$1.5B25,882,0922780830.0%
Q4 2023228$1.6B25,050,9482374820.0%
Q3 2023222$1.5B24,503,6832495590.0%
Q2 2023219$1.8B25,193,9853081620.0%
Q1 2023212$2.0B25,720,7942560820.0%
Q4 2022213$2.1B25,249,3445665590.0%
Q3 2022178$1.3B22,101,3492263510.0%
Q2 2022179$1.4B21,965,2242246750.0%
Q1 2022182$1.5B21,607,3662165570.0%
Q4 2021179$1.6B22,382,0203256513.1%
Q3 2021155$1.5B22,264,4071658390.0%
Q2 2021146$1.4B21,594,006964430.0%
Q1 2021160$1.4B21,475,9172057470.0%
Q4 2020162$1.6B20,511,4671857550.0%
Q3 2020157$1.2B20,273,8171247590.0%
Q2 2020159$1.3B20,413,7342058480.1%
Q1 2020162$1.1B19,580,7732543630.0%
Q4 2019167$1.4B20,195,1002264460.0%
Q3 2019175$1.3B19,371,2982755510.1%
Q2 2019162$1.3B19,584,6201266480.1%
Q1 2019169$1.2B19,753,3601471490.0%
Q4 2018177$1.1B19,056,1666430.0%