H2O AMERICA·4

Mar 3, 7:12 PM ET

Mattern Megan 4

4 · H2O AMERICA · Filed Mar 3, 2026

Insider Transaction Report

Form 4
Period: 2026-02-27
Mattern Megan
CAO, PAO and Controller
Transactions
  • Award

    Common Stock

    [F1][F2]
    2026-02-27+2,16614,785 total
Footnotes (2)
  • [F1]Represents 2,166 shares of the issuer's common stock ("Common Stock") underlying restricted stock units ("RSUs") granted to the reporting person under the issuer's Long-Term Incentive Plan. Each RSU entitles the reporting person to receive one share of Common Stock upon vesting of the RSU. The RSUs will vest in three annual successive installments upon the completion of the reporting person's each year of service with the issuer for the three-year period measured from the date of grant, subject to accelerated vesting under certain prescribed circumstances.
  • [F2]Represents 14,785 shares of the Common Stock underlying RSUs which will vest and become issuable in accordance with their terms.
Signature
/s/ Marisa Joss Attorney-in-Fact for Megan Mattern|2026-03-03

Documents

1 file
  • 4
    wk-form4_1772583127.xmlPrimary

    FORM 4