Energy Recovery (ERII) awards interim CFO 18,518 common shares

Rhea-AI Filing Summary

Ryan Aidan reported acquisition or exercise transactions in this Form 4 filing.

Energy Recovery, Inc. reported that Interim CFO Ryan Aidan received a grant of common stock. On May 6, 2026, he was awarded 18,518 shares of common stock at a reference price of $11.61 per share. This was a grant or award transaction rather than an open-market purchase. Following this award, Aidan directly holds a total of 34,133 common shares of Energy Recovery, Inc.

Insider Trade Summary

Net Buyer: 18,518 shares

Net Buy 1 txn

Insider Ryan Aidan

Role Interim CFO

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	18,518	$11.61	$215K

Holdings After Transaction: Common Stock — 34,133 shares (Direct)

Key Figures

Shares granted: 18,518 shares Grant price: $11.61 per share Total shares held after grant: 34,133 shares

3 metrics

Shares granted 18,518 shares Common stock grant to Interim CFO on May 6, 2026

Grant price $11.61 per share Reference price for 18,518-share common stock award

Total shares held after grant 34,133 shares Interim CFO Ryan Aidan’s direct holdings after the award

Key Terms

Grant, award, or other acquisition, Common Stock, Form 4

3 terms

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

Common Stock financial

"security_title: Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

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.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/25/2026 - 04:25 PM Accepted by SEC EDGAR 06/25/2026 - 04:24 PM Learn about SEC filing dates

FAQ

What insider transaction did Energy Recovery (ERII) report for Interim CFO Ryan Aidan?

Energy Recovery reported that Interim CFO Ryan Aidan received a grant of 18,518 shares of common stock. The transaction was classified as a grant, award, or other acquisition, not an open-market purchase, increasing his direct shareholdings in the company.

How many Energy Recovery (ERII) shares does Interim CFO Ryan Aidan hold after this Form 4?

After the reported transaction, Interim CFO Ryan Aidan holds 34,133 shares of Energy Recovery common stock. This total reflects his direct ownership following the 18,518-share grant reported as a grant, award, or other acquisition on the Form 4.

Was the Energy Recovery (ERII) insider transaction a stock purchase or a share grant?

The transaction was a share grant, not an open-market stock purchase. It is coded as an “A” transaction, described as a grant, award, or other acquisition, indicating compensation or award-related issuance rather than a voluntary market buy order.

At what price was Interim CFO Ryan Aidan’s Energy Recovery (ERII) share grant valued?

The 18,518-share grant to Interim CFO Ryan Aidan was recorded at $11.61 per share. This price is used in the filing to value the awarded common stock, providing a reference amount for the reported Form 4 transaction.

Does this Energy Recovery (ERII) Form 4 show any insider share sales by the Interim CFO?

No insider share sales are reported for Interim CFO Ryan Aidan in this Form 4. The filing shows only an acquisition via a grant, award, or other acquisition of 18,518 shares, with no dispositions or open-market sales disclosed in the transaction summary.

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^*

Ryan Aidan

(Last) (First) (Middle)

C/O ENERGY RECOVERY, INC.

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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/06/2026

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	05/06/2026		A		18,518	A	$11.61	34,133	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:

Exhibit 24

	/s/ William Yeung, Attorney-in-Fact for Aidan Ryan	06/24/2026
	** 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)