Welcome to our dedicated page for Energy Recovery SEC filings (Ticker: ERII), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Energy Recovery filings document the public-company record for a manufacturer of pressure exchanger technology used in water and industrial infrastructure. Form 8-K reports cover quarterly and annual operating results, earnings releases, capital actions such as share repurchase authorization, restructuring and impairment disclosures, and executive succession matters.
Proxy materials describe board elections, executive compensation, equity awards, shareholder voting items, and governance practices. The filings also frame capital-structure and operating disclosures around common stock, segment activity in Water and Emerging Technologies, product mix, contracted-project timing, manufacturing costs, and tariff exposure.
Ramanan Natarajan reported acquisition or exercise transactions in this Form 4 filing.
Energy Recovery, Inc. reported that its Chief Technology Officer, Ramanan Natarajan, received an equity award in the form of restricted stock units. He was granted 29,106 employee restricted stock units of common stock, with no cash price per share listed for the grant.
According to the vesting terms, 25% of these restricted stock units will vest on each of the first four anniversaries of the grant date, spreading the award over four years. Each restricted stock unit represents the right to receive one share of Energy Recovery common stock at settlement, and following this award his directly held common stock position reported in the filing is 55,561 shares.
Energy Recovery, Inc. reported that SVP, Water Rodney Clemente acquired an award of 45,626 restricted stock units on the transaction date. The grant was priced at $0.0000 per unit, reflecting an equity compensation award rather than a market purchase.
According to the terms, 25% of the restricted stock units will vest on each of the first four anniversaries of the grant date, spreading the vesting over four years. Each restricted stock unit gives the right to receive one share of common stock upon settlement, bringing Clemente’s direct holdings to 136,576 shares after the award.
Hostetler Matthew reported acquisition or exercise transactions in this Form 4 filing.
Energy Recovery, Inc. reported that Chief Human Resources Officer Matthew Hostetler received an equity grant in the form of employee restricted stock units. The award covers 25,959 restricted stock units, each convertible into one share of common stock at settlement, with no cash paid per unit.
According to the vesting schedule, 25% of the restricted stock units will vest on each of the first four anniversaries of the grant date, creating a four-year vesting period. Following this award, Hostetler’s direct holdings total 46,556 shares of common stock, aligning his compensation further with the company’s long-term performance.
Amundi and Amundi Asset Management filed a Schedule 13G showing beneficial ownership of 2,852,138 shares of Energy Recovery, Inc. common stock, representing 5.38% of the class as of December 31, 2025.
They report shared voting power over 1,868,087 shares and shared dispositive power over all 2,852,138 shares, with no sole voting or dispositive power. Amundi explains that 984,051 of these shares are held in a French employee shareholding vehicle (FCPE), where voting rights are exercised by the FCPE’s supervisory board, primarily representing Energy Recovery employees.
Ameriprise Financial and its affiliates filed Amendment No. 3 to a Schedule 13G/A reporting their holdings in Energy Recovery, Inc. common stock. Ameriprise Financial, Inc. reports beneficial ownership of 4,563,348 shares, representing 8.6% of the class, all with shared voting and dispositive power.
Within the Ameriprise group, UK International Holdings Limited reports 3,860,753 shares (7.3%), and Threadneedle Management Luxembourg S.A. reports 2,458,997 shares (4.6%). Several related Threadneedle entities each report 1,401,756 shares (2.7%). The Ameriprise entities state the securities are held in the ordinary course of business and not for the purpose of changing or influencing control of Energy Recovery.
Energy Recovery Chief Legal Officer William Yeung reported pre‑planned stock sales under a Rule 10b5-1 trading plan. On February 5, 2026, he sold 890 shares of common stock at $14.59 each. On February 6, 2026, he sold an additional 646 shares at $15.14 each. After these transactions, he beneficially owned 78,208 shares of Energy Recovery common stock directly.
Energy Recovery, Inc. executive Rodney Clemente, SVP, Water, reported a small planned stock sale. On February 5, 2026, he sold 724 shares of common stock at $14.59 per share under a pre-arranged Rule 10b5-1 trading plan.
After this sale, Clemente still beneficially owns 90,950 shares of Energy Recovery common stock directly.
Energy Recovery, Inc. (ERII) insider William Yeung has filed a Form 144 to sell 646 shares of common stock. The planned sale, routed through Fidelity Brokerage Services, has an aggregate market value of $9,780.44 and is targeted for execution on 02/06/2026 on the NASDAQ market.
These 646 shares were acquired on 01/30/2026 through restricted stock vesting as compensation from the issuer. As context, the filing notes 52,972,096 common shares outstanding. In the prior three months, Yeung sold 7,271 and 729 common shares on 01/28/2026 and 02/02/2026, generating gross proceeds of $105,793.05 and $10,541.34, respectively.
Energy Recovery, Inc. executive reports tax share withholding. SVP, Water Rodney Clemente reported two Form 4 transactions on January 30, 2026, both coded “F,” meaning shares were withheld to cover taxes on vesting, not sold in the open market.
The company withheld 694 shares of common stock at $14.65 per share and 8,397 shares at $14.30 per share to satisfy tax obligations tied to equity awards under Rule 16b-3(e). After these transactions, Clemente directly owned 91,674 shares of Energy Recovery common stock.
Energy Recovery, Inc. Chief Human Resources Officer Matthew Hostetler reported an automatic share withholding to cover taxes tied to vesting equity. On January 30, 2026, 3,359 shares of common stock were withheld at $14.30 per share under transaction code F. After this tax-related withholding, Hostetler directly beneficially owned 20,597 shares of Energy Recovery common stock.