Energy Recovery director buys 11,180 shares

Energy Recovery, Inc. director Colin R. Sabol reported an open-market purchase of 11,180 shares of common stock on June 15, 2026 at a weighted average price of $8.879 per share, from multiple trades priced between $8.535 and $8.93.

Rhea-AI Filing Summary

Energy Recovery, Inc. director Colin R. Sabol reported an open-market purchase of 11,180 shares of common stock on June 15, 2026 at a weighted average price of $8.879 per share, from multiple trades priced between $8.535 and $8.93. Following the transaction, he directly owns 55,671 shares and also reports 3,000 shares held indirectly in a joint account with Julie Sabol.

Insider Trade Summary

Net Buyer: 11,180 shares

Net Buy 2 txns

Insider Sabol Colin R

Role Director

Bought 11,180 shs ($99K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	11,180	$8.879	$99K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 55,671 shares (Direct); Common Stock — 3,000 shares (Indirect, Colin Sabol & Julie Sabol JTWROS)

Footnotes (1)

1. F1. This amount represents the weighted average purchase price of multiple trades ranging from $8.535 to $8.93 per share. The reporting person undertakes to provide the SEC Staff, Energy Recovery, Inc. or a shareholder of Energy Recovery, Inc. full information about the number of shares purchased at each separate price upon request.

Key Figures

Shares purchased: 11,180 shares Weighted average price: $8.879 per share Trade price range: $8.535–$8.93 per share +2 more

5 metrics

Shares purchased 11,180 shares Open-market purchase on June 15, 2026

Weighted average price $8.879 per share Average of multiple trades on June 15, 2026

Trade price range $8.535–$8.93 per share Range of individual executions for the 11,180 shares

Direct holdings after trade 55,671 shares Common stock directly owned by Colin R. Sabol

Indirect holdings reported 3,000 shares Held as Colin Sabol & Julie Sabol JTWROS

Key Terms

open-market purchase, weighted average purchase price, Form 4, JTWROS

4 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.

weighted average purchase price financial

"represents the weighted average purchase price of multiple trades"

The weighted average purchase price is the average cost per share you paid across multiple buys, calculated so larger purchases count more than smaller ones. Imagine buying apples at different prices: the overall price you effectively paid depends on how many apples you bought at each price. Investors use it to measure true cost basis, calculate gains or losses, decide when to sell, and manage taxes and portfolio performance.

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.

JTWROS financial

"nature_of_ownership": "Colin Sabol & Julie Sabol JTWROS""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did ERII director Colin Sabol report?

Energy Recovery director Colin R. Sabol reported buying 11,180 common shares in the open market. The purchase occurred on June 15, 2026 at a weighted average price of $8.879 per share, based on multiple trades within a disclosed price range.

At what price did Colin Sabol buy Energy Recovery (ERII) shares?

Colin R. Sabol bought Energy Recovery common stock at a weighted average price of $8.879 per share. The filing notes multiple trades, with individual prices ranging from $8.535 to $8.93 per share, all executed on June 15, 2026.

How many Energy Recovery (ERII) shares does Colin Sabol hold after this trade?

After the reported purchase, Colin R. Sabol directly owns 55,671 shares of Energy Recovery common stock. He also reports an additional 3,000 shares held indirectly in a joint account with Julie Sabol, according to the Form 4 disclosure.

Was the ERII insider transaction a buy or a sell?

The Energy Recovery insider transaction by director Colin R. Sabol was a buy. He executed an open-market purchase of 11,180 common shares on June 15, 2026, increasing his directly held position to 55,671 shares after the trade.

What does the price range in Colin Sabol’s ERII trade mean?

The filing states the $8.879 average reflects multiple trades between $8.535 and $8.93 per share. This means the 11,180 purchased shares were bought in several executions within that range, producing the reported weighted average purchase price.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/17/2026 - 04:11 PM EDT Learn about SEC filing dates

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^*

Sabol Colin R

(Last) (First) (Middle)

1717 DOOLITTLE DRIVE

(Street)

SAN LEANDRO CALIFORNIA 94577

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Energy Recovery, Inc. [ ERII ]

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)
06/15/2026

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	06/15/2026		P		11,180	A	$8.879(1)	55,671	D
Common Stock								3,000	I	Colin Sabol & Julie Sabol JTWROS

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. This amount represents the weighted average purchase price of multiple trades ranging from $8.535 to $8.93 per share. The reporting person undertakes to provide the SEC Staff, Energy Recovery, Inc. or a shareholder of Energy Recovery, Inc. full information about the number of shares purchased at each separate price upon request.

Remarks:

Exhibit 24

	/s/ William Yeung, Attorney-in-Fact for Colin R. Sabol	06/17/2026
	** 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)