[Form 4] H2O AMERICA Insider Trading Activity

Rhea-AI Filing Summary

WALLACE CAROL P reported acquisition or exercise transactions in this Form 4 filing.

H2O America director Carol P. Wallace received a grant of 1,947 restricted stock units (RSUs) under the company’s Long-Term Incentive Plan. Each RSU represents one share of common stock that will be delivered when it vests.

The RSUs vest in full if Wallace continues Board service through the day immediately preceding H2O America’s 2027 annual stockholders meeting, subject to certain accelerated vesting conditions. After this award, she holds 9,291 shares of common stock and 1,947 shares underlying RSUs, totaling 11,238 shares associated with her position.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider WALLACE CAROL P

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,947	$0.00	--

Holdings After Transaction: Common Stock — 11,238 shares (Direct, null)

Footnotes (1)

1. Represents 1,947 restricted stock units ("RSUs") granted to the reporting person under the Issuer's Long-Term Incentive Plan. Each RSU will entitle the reporting person to receive one share of the Issuer's common stock ("Common Stock") when that unit vests. The RSUs will vest in full upon the reporting person's continuation in Board service through the day immediately preceding the date of the Issuer's 2027 annual stockholders meeting, subject to accelerated vesting under certain prescribed circumstances. Represents 9,291 shares of Common Stock and 1,947 shares of Common Stock underlying RSUs which will vest and become issuable in accordance with their terms.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

WALLACE CAROL P

(Last) (First) (Middle)

110 W. TAYLOR STREET

(Street)

SAN JOSE CALIFORNIA 95110

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
H2O AMERICA [ HTO ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/13/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/13/2026		A		1,947(1)	A	$0	11,238(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents 1,947 restricted stock units ("RSUs") granted to the reporting person under the Issuer's Long-Term Incentive Plan. Each RSU will entitle the reporting person to receive one share of the Issuer's common stock ("Common Stock") when that unit vests. The RSUs will vest in full upon the reporting person's continuation in Board service through the day immediately preceding the date of the Issuer's 2027 annual stockholders meeting, subject to accelerated vesting under certain prescribed circumstances.

2. Represents 9,291 shares of Common Stock and 1,947 shares of Common Stock underlying RSUs which will vest and become issuable in accordance with their terms.

Remarks:

	/s/ Marisa Joss Attorney-in-Fact for Carol P. Wallace	05/15/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)