ATLAS Infrastructure buys 50,385 H2O AMERICA (HTO) shares in open market

Rhea-AI Filing Summary

ATLAS Infrastructure Partners (UK) Ltd., a ten percent owner of H2O AMERICA, reported an open-market purchase of 50,385 shares of common stock at an average price of $59.0636 per share. Following this transaction, ATLAS holds 4,582,469 common shares directly.

Insights

Equity ownership analyst

Large shareholder adds modestly to an already significant position.

ATLAS Infrastructure Partners (UK) Ltd., identified as a ten percent owner of H2O AMERICA, executed an open-market purchase of 50,385 common shares at an average price of $59.0636 per share.

After the transaction, ATLAS directly holds 4,582,469 common shares, indicating this buy increases an already substantial stake by a relatively small increment. As a routine open-market purchase without derivatives or noted trading plans, it simply reflects increased equity exposure.

No derivative positions are listed, and there are no footnote disclosures about indirect ownership structures or trading plans in the provided data. The overall signal is a moderate, straightforward addition by a large existing holder, with impact depending on the company’s broader share base.

Insider Trade Summary

Net Buyer: 50,385 shares ($2,975,919)

Net Buy 1 txn

Insider ATLAS Infrastructure Partners (UK) Ltd.

Role 10% Owner

Bought 50,385 shs ($2.98M)

Type	Security	Shares	Price	Value
Purchase	Common Stock	50,385	$59.0636	$2.98M

Holdings After Transaction: Common Stock — 4,582,469 shares (Direct)

Footnotes (1)

Key Figures

Shares purchased: 50,385 shares Purchase price: $59.0636 per share Shares held after transaction: 4,582,469 shares

3 metrics

Shares purchased 50,385 shares Open-market purchase of common stock

Purchase price $59.0636 per share Average price for the 50,385-share buy

Shares held after transaction 4,582,469 shares Direct common stock holdings post-transaction

Key Terms

open-market purchase, ten percent owner, Form 4

3 terms

open-market purchase financial

"transaction_action": "open-market purchase""

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

""is_ten_percent_owner": 1"

Form 4 regulatory

"INSIDER FILING DATA (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.

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
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)
04/10/2026

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	04/10/2026		P		50,385	A	$59.0636	4,582,469	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:

Remarks:

	/s/ Clinton Joyner	04/13/2026
	** 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)

FAQ

What insider transaction did ATLAS Infrastructure Partners report for H2O AMERICA (HTO)?

ATLAS Infrastructure Partners reported buying 50,385 shares of H2O AMERICA common stock in an open-market transaction. The shares were purchased at an average price of $59.0636 per share, as disclosed in the Form 4 insider filing data provided.

At what price did ATLAS Infrastructure Partners buy H2O AMERICA (HTO) shares?

ATLAS Infrastructure Partners bought H2O AMERICA common stock at an average price of $59.0636 per share. This figure comes directly from the Form 4 transaction details describing the open-market purchase of 50,385 shares on the reported transaction date.

How many H2O AMERICA (HTO) shares does ATLAS Infrastructure Partners hold after the transaction?

Following the reported purchase, ATLAS Infrastructure Partners directly holds 4,582,469 shares of H2O AMERICA common stock. This post-transaction holding amount is explicitly listed in the Form 4 data as the total shares beneficially owned after the open-market trade.

Is ATLAS Infrastructure Partners considered a major shareholder of H2O AMERICA (HTO)?

Yes. The reporting information identifies ATLAS Infrastructure Partners as a ten percent owner of H2O AMERICA. In SEC reporting terms, being a ten percent owner classifies the entity as a significant shareholder subject to ongoing Form 4 transaction reporting obligations.

Was the H2O AMERICA (HTO) insider transaction a buy or a sell?

The transaction was a buy. The Form 4 data shows transaction code P, labeled as an open-market purchase, and flags the transaction direction as buy. ATLAS Infrastructure Partners acquired 50,385 common shares rather than selling or disposing of shares.

Did the H2O AMERICA (HTO) Form 4 include any derivative securities activity?

No derivative securities activity appears in the provided data. The transaction involves only non-derivative common stock, and the derivative summary is empty, indicating no options, warrants, or other derivative positions were reported in this specific Form 4 filing.