ERII Form 144: Insider Sale of 33,554 Shares Valued at $487K

Energy Recovery, Inc. (ERII) has a Form 144 notice disclosing a proposed sale of 33,554 common shares through Fidelity Brokerage Services on the NASDAQ with an aggregate market value of $487,115.16.

Rhea-AI Filing Summary

Energy Recovery, Inc. (ERII) has a Form 144 notice disclosing a proposed sale of 33,554 common shares through Fidelity Brokerage Services on the NASDAQ with an aggregate market value of $487,115.16. The filing shows the shares to be sold were acquired in two events: 30,877 shares from options granted on 06/20/2016 and recorded as acquired on 09/11/2025 with cash as payment, and 2,677 shares from restricted stock vesting recorded on 07/25/2025 as compensation. The company reports 53,198,386 shares outstanding, so the proposed sale equals approximately 0.063% of outstanding common shares. The filer represents they have no undisclosed material adverse information and attests to the accuracy of the notice.

Positive

• Required disclosure filed under Rule 144 identifying broker, security class and aggregate value
• Acquisition sources disclosed: options (06/20/2016) and restricted stock vesting, clarifying why shares are being sold
• Sale size is small relative to outstanding shares (~0.063%), suggesting limited market impact

Negative

• Proposed sale value of $487,115.16 will be realized by the filer, which could be viewed negatively by some investors
• Acquisition and sale dates include 2025 dates only; timing concentrated in mid/late 2025 per the filing

Insights

Securities/Equity Analyst

TL;DR: Small, routine insider sale disclosure; limited market impact.

The Form 144 notifies a planned sale of 33,554 shares valued at $487,115.16, executed through a broker on NASDAQ. Given the issuer's stated 53,198,386 shares outstanding, the sale represents roughly 0.063% of the float, which is immaterial to company capitalization. The securities were obtained via long-dated option grants and recent restricted stock vesting, indicating the supply arises from standard compensation and option exercises rather than secondary transfers. From a market-impact perspective this filing is neutral.

Corporate Governance Expert

TL;DR: Governance/disclosure procedures followed; documentation consistent with Rule 144 requirements.

The notice provides required broker, acquisition and payment details, and includes the signer’s representation of no undisclosed material adverse information. It documents compensation-related and option-derived shares, with dates and payment nature disclosed. This is a routine compliance filing that demonstrates adherence to trading disclosure obligations; it does not identify governance concerns or material events based solely on the provided content.

FAQ

What does the ERII Form 144 disclose?

The filing discloses a proposed sale of 33,554 common shares via Fidelity on NASDAQ with an aggregate market value of $487,115.16.

How were the shares being sold acquired?

The shares were acquired via options granted (06/20/2016) and restricted stock vesting (07/25/2025); payment is listed as cash and compensation respectively.

What percentage of ERII outstanding shares does this sale represent?

The filing shows 53,198,386 shares outstanding; 33,554 shares equal approximately 0.063% of that total.

Who is the broker handling the sale?

The sale is to be handled by Fidelity Brokerage Services LLC at the address listed in the filing.

Did the filer report any securities sold in the past three months?

The filing states "Nothing to Report" for securities sold during the past three months.

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Accepted by SEC EDGAR 09/11/2025 - 04:34 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001677876
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Energy Recovery, Inc.
SEC File Number	001-34112
Address of Issuer	1717 DOOLITTLE DRIVE SAN LEANDRO CALIFORNIA 94577
Phone	(510) 483-7370
Name of Person for Whose Account the Securities are To Be Sold	Yeung William
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	33554	487115.16	53198386	09/11/2025	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	09/11/2025	Options Granted - 06/20/2016	Issuer			30877	09/11/2025	Cash
Common	07/25/2025	Restricted Stock Vesting	Issuer			2677	07/25/2025	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	09/11/2025
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/12/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for William Yeung
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)