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.
Energy Recovery, Inc. filed an amended report to disclose compensation terms for Interim President and Chief Executive Officer Alex Buehler. His employment letter provides an annual base salary of $645,000 and eligibility for a success bonus, payable 30 days after the next permanent CEO’s start date if earned.
Mr. Buehler is also eligible for the company’s standard benefits. The amendment adds these compensation details to the previously filed report announcing his interim appointment, and the employment letter is filed as an exhibit and incorporated by reference.
Energy Recovery, Inc. held its 2026 annual meeting of stockholders on June 4, 2026. Stockholders voted on board elections, executive pay, auditor ratification, and an amendment to the 2020 Incentive Plan.
There were 52,001,859 shares outstanding and entitled to vote as of April 6, 2026; 44,372,394 shares, or about 85.3%, were represented, providing a quorum. All five director nominees were elected, each receiving at least 84.5% of votes cast, with broker non-votes of 4,841,120 on each director.
Stockholders approved the non-binding advisory vote on 2025 executive compensation with 32,938,286 votes for (83.3%). They ratified Deloitte & Touche LLP as independent auditor for 2026 with 44,082,317 votes for (99.3%). Amendment No. 1 to the 2020 Incentive Plan was approved with 21,152,072 votes for (53.5%), reflecting relatively closer support. Following the previously disclosed resignation of President and CEO David Moon, the board remains at six seats with one vacancy.
TONDREAU PAMELA L. reported acquisition or exercise transactions in this Form 4 filing.
Energy Recovery, Inc. director Pamela L. Tondreau reported an equity compensation grant of 22,316 shares of common stock at $8.29 per share. Following this grant, she holds 60,844 shares directly and 37,362 shares indirectly through The Bruce-Tondreau Living Trust. A related restricted stock unit is scheduled to fully vest at the 2027 annual meeting, anticipated on or around June 3, 2027.
Chow Joan Kai reported acquisition or exercise transactions in this Form 4 filing.
Energy Recovery, Inc. director Joan Kai Chow received an equity grant of 18,094 shares of common stock as a grant or award, valued at $8.29 per share. This is a compensation-related award, not an open-market purchase.
The award relates to restricted stock units that will fully vest at the company’s 2027 annual meeting, anticipated to be on or around June 3, 2027. After this grant, Chow directly holds 52,116 shares of common stock and also indirectly holds 1,500 shares through a joint tenancy with right of survivorship.
Energy Recovery, Inc. director Colin R. Sabol reported a stock award of 18,094 shares of common stock on June 4, 2026. The award was recorded at a price of $8.29 per share as a grant or other acquisition, meaning it reflects equity compensation rather than an open-market purchase.
After this award, Sabol directly holds 44,491 shares of common stock and indirectly holds 3,000 shares through a joint tenancy with right of survivorship. A related footnote states that the restricted stock unit will fully vest at the 2027 annual meeting, anticipated to occur on or around June 3, 2027.
Hanstveit Arve reported acquisition or exercise transactions in this Form 4 filing.
Energy Recovery, Inc. director Arve Hanstveit reported a stock award. He received 18,094 shares of common stock as a grant at $8.29 per share, increasing his direct holdings to 400,603 shares. The restricted stock unit will fully vest at the 2027 Annual Meeting, anticipated around June 3, 2027. He also reports 60,000 shares held in each of two irrevocable trusts, where he serves as sole trustee with sole voting and investment power.
Energy Recovery, Inc. announced a leadership transition as President and Chief Executive Officer David Moon accelerated his previously announced retirement and resigned from all positions, effective May 26, 2026. The company states his decision was not related to any disagreement with management or the Board.
On the same date, Board member and former CFO Alex Buehler, age 51, was appointed Interim President and CEO and will serve until a permanent successor is selected. He will remain on the Board but step down from the Compensation and Audit Committees, with Director Arve Hanstveit becoming Audit Committee Chair. An executive search firm has been engaged to identify the next permanent CEO, and the company issued a press release on May 28, 2026 describing the transition.
Energy Recovery, Inc. disclosed the initial holdings of Interim CFO Ryan Aidan. He directly holds 15,615 shares of common stock. He also holds employee stock options covering 14,887 shares of common stock at an exercise price of $16.19 per share, expiring on December 16, 2034.
The options vest over four years, with 25% vesting on the first anniversary of the vesting commencement date and the remaining 75% vesting monthly over the following three years.
Energy Recovery, Inc. director Pamela L. Tondreau reported an open-market purchase of 20,000 shares of common stock on May 13, 2026 through the Bruce-Tondreau Living Trust. The weighted average purchase price was $8.342 per share, with individual trades between $8.335 and $8.35. Following the purchase, the filing shows 37,362 shares held indirectly by the trust and a separate direct holding entry of 38,528 shares in her name. A footnote explains the trust total includes the 20,000 shares bought on May 13, 2026 plus 17,362 shares transferred to the trust in January 2026, for which she may be deemed to have beneficial ownership.