Megan Mattern - 30 Jul 2026 Form 4 Insider Report for H2O AMERICA (HTO)

Reporting relationship: CAO, PAO and Controller
Issuer ticker: HTO
Reported as of: 30 Jul 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 03 Aug 2026, 19:06:59 UTC
Prior SEC filing: 03 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Willie Brown Attorney-in-Fact for Megan Mattern

Key filing fact

Megan Mattern filed Form 4 for H2O AMERICA (HTO) on 03 Aug 2026.

Key facts

This page summarizes Megan Mattern's Form 4 filing for H2O AMERICA (HTO).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 03 Aug 2026, 19:06.

Change

Previous filing in this sequence was filed on 03 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002079031 Primary reporting owner

Mattern Megan

Relationship: CAO, PAO and Controller
Address: 110 W. TAYLOR STREET, SAN JOSE
Signature: /s/ Willie Brown Attorney-in-Fact for Megan Mattern
Signature date: 03 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

HTO transaction

Common Stock

Tax liability

Transaction value
Shares: -1,154
Change %: -7.8%
Price: $61.97^*
Shares after: 13,631
Date: 30 Jul 2026
Ownership: Direct
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Represents 1,154 shares of the issuer's common stock (Common Stock) withheld in satisfaction of applicable withholding taxes upon the vesting of certain shares of Common Stock that became issuable on July 30, 2026 pursuant to the terms of the Restricted Stock Unit Issuance Agreement between the reporting person and the issuer dated July 30, 2025. The shares underlying such restricted stock units (RSUs) were previously reported as Table I securities at the time the RSUs were granted. Accordingly, the issuance of such shares is not a reportable transaction on this Form 4.

Footnote F2

Represents 3,052 shares of Common Stock and 10,579 shares of the Common Stock underlying RSUs which will vest and become issuable in accordance with their terms.