Kristen A. Johnson - 27 Feb 2026 Form 4 Insider Report for H2O AMERICA (HTO)

Role: Chief Administrative Officer
Signature: /s/ Marisa Joss, Attorney-in-Fact for Kristen A. Johnson
Issuer symbol: HTO
Transactions as of: 27 Feb 2026
Net transactions value: -$25,281
Form type: 4
Filing time: 03 Mar 2026, 19:11:41 UTC
Previous filing: 06 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Johnson A Kristen	Chief Administrative Officer	110 W. TAYLOR STREET, SAN JOSE	/s/ Marisa Joss, Attorney-in-Fact for Kristen A. Johnson	03 Mar 2026	0001313291

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	HTO	Common Stock	Award	$0	+1,312	+11%	$0.000000	13,772	27 Feb 2026	Direct	F1
transaction	HTO	Common Stock	Award	$0	+1,263	+9.2%	$0.000000	15,035	27 Feb 2026	Direct	F2
transaction	HTO	Common Stock	Tax liability	$25,281	-470	-3.1%	$53.79	14,565	27 Feb 2026	Direct	F3, F4

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	HTO	Common Stck	Award		+145	+0.81%		18,021	02 Mar 2026	Common Stock	145		Direct	F5

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents 1,312 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 (i) 1,034 shares of Issuer's Common Stock subject to the 2023 RSUs that vested upon the attainment of a certain performance goal based on average return on equity ("ROE") measured over a period from January 1, 2023 to December 31, 2025 and continued service by the reporting person through December 31, 2025 and (ii) 229 shares of Common Stock subject to the 2023 RSUs that vested upon the attainment of a certain performance goal based on relative total shareholder return ("TSR") measured over a period from January 1, 2023 to December 31, 2025 and continued service by the reporting person through December 31, 2025.
F3	Represents (i) 385 shares of Common Stock withheld in satisfaction of the applicable withholding taxes on shares of Common Stock that became issuable pursuant to the vesting of the 2023 ROE RSUs reported on this Form 4 and (ii) 85 shares of Common Stock withheld in satisfaction of the applicable withholding taxes on shares of Common Stock that became issuable pursuant to the vesting of the 2023 TSR RSUs reported on this Form 4.
F4	Represents 7,777 shares of Common Stock and 6,788 shares of the Common Stock underlying RSUs which will vest and become issuable in accordance with their terms.
F5	Represents 145 shares subject to deferred stock units ("DSUs") granted to the reporting person pursuant to dividend equivalent rights ("DERs") accrued on outstanding DSUs granted by Connecticut Water Service, Inc., a wholly owned subsidiary of the Issuer. DERs accrue when and as dividends are paid on the Common Stock underlying the awards and will vest and be settled in accordance with the same terms as the DSUs to which they relate.