H2O America (HTO) major holder adds 2,784 common shares

Rhea-AI Filing Summary

H2O America reported an insider open-market purchase of its Common Stock by entities identified as ten percent owners. The filing shows a buy of 2,784 shares at a price of $62.03 per share. After this transaction, the reporting holder’s direct position stands at 4,615,265 shares.

Insider Trade Summary

Net Buyer: 2,784 shares ($172,692)

Net Buy 1 txn

Insider ATLAS Infrastructure Partners (UK) Ltd., GIP ATLAS Holdings Ltd

Role null | null

Bought 2,784 shs ($173K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	2,784	$62.03	$173K

Holdings After Transaction: Common Stock — 4,615,265 shares (Direct, null)

Footnotes (1)

Key Figures

Shares purchased: 2,784 shares Purchase price: $62.03 per share Shares owned after: 4,615,265 shares +1 more

4 metrics

Shares purchased 2,784 shares Open-market purchase of Common Stock

Purchase price $62.03 per share Reported transaction price

Shares owned after 4,615,265 shares Direct ownership following transaction

Net buy shares 2,784 shares Net buy direction for this Form 4

Key Terms

open-market purchase, ten percent owner, Form 4

3 terms

open-market purchase financial

"The filing shows a buy of 2,784 shares at a price of $62.03 per share."

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

ten percent owner financial

"entities identified as ten percent owners"

Form 4 regulatory

"What insider transaction did H2O America (HTO) report on this Form 4?"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/08/2026 - 11:40 AM Accepted by SEC EDGAR 07/08/2026 - 11:40 AM Learn about SEC filing dates

FAQ

What insider transaction did H2O America (HTO) report on this Form 4?

H2O America reported an open-market purchase of its Common Stock by a reporting holder. The transaction involved buying 2,784 shares, reflecting additional investment by a ten percent owner in the company’s equity.

How many H2O America (HTO) shares were bought in the latest insider trade?

The reporting holder bought 2,784 shares of H2O America Common Stock. This open-market purchase increased the insider’s direct ownership and is disclosed to give investors visibility into significant shareholder activity.

At what price were the H2O America (HTO) shares purchased by the insider?

The reported open-market purchase was executed at $62.03 per share. This price represents the transaction value for the 2,784 Common Stock shares acquired by the reporting holder, as disclosed in the Form 4 filing.

What is the reporting holder’s total H2O America (HTO) ownership after this transaction?

After the transaction, the reporting holder directly owns 4,615,265 H2O America shares. This post-transaction figure helps investors understand the scale of the insider’s position relative to the additional shares acquired.

Who are the reporting persons on this H2O America (HTO) Form 4?

The Form 4 lists ATLAS Infrastructure Partners (UK) Ltd. and GIP ATLAS Holdings Ltd as reporting persons. Each is identified as a ten percent owner, reflecting significant beneficial ownership in H2O America’s Common Stock.

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
Estimated average burden
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^*

ATLAS Infrastructure Partners (UK) Ltd.

(Last) (First) (Middle)

1ST FLOOR WEST

1-3 COLLEGE HILL

(Street)

LONDON EC4R 2RA

(City) (State) (Zip)

UNITED KINGDOM

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/07/2026

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

	Form filed by One Reporting Person
X	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	07/07/2026		P		2,784	A	$62.03	4,615,265	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

1. Name and Address of Reporting Person^*

ATLAS Infrastructure Partners (UK) Ltd.

(Last) (First) (Middle)

1ST FLOOR WEST

1-3 COLLEGE HILL

(Street)

LONDON EC4R 2RA

(City) (State) (Zip)

UNITED KINGDOM

(Country)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

GIP ATLAS Holdings Ltd

(Last) (First) (Middle)

1ST FLOOR WEST, 1-3 COLLEGE HILL

(Street)

LONDON EC4R 2RA

(City) (State) (Zip)

UNITED KINGDOM

(Country)

Relationship of Reporting Person(s) to Issuer

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

Explanation of Responses:

Remarks:

GIP Atlas Holdings Limited is the sole owner of Atlas Infrastructure Partners (UK) Ltd, holding 100% of its equity interests; however, it does not exercise investment discretion with respect to the entity.

	/s/ Toni Rizk	07/08/2026
	** 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)