Energy Recovery CEO David Moon accelerates retirement; Alex Buehler named interim CEO

Energy Recovery, Inc.

David Moon resigned as President, CEO and board member effective May 26, 2026 for personal reasons; no disagreement with management.
Board member Alex Buehler appointed Interim President and CEO; Buehler was Energy Recovery CFO (2011-2014) and board member since 2015.
Buehler steps down from Audit and Compensation Committees; Arve Hanstveit named new Audit Committee Chair.
Board has engaged a leading executive search firm to conduct a permanent CEO search, evaluating internal and external candidates.
Buehler's interim compensation has not yet been determined; amendment to 8-K will disclose terms when set.

item 5.02 item 9.01

Executive movements

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Appointed (interim)

Alex Buehler

Interim President and Chief Executive Officer

ERII · Energy Recovery, Inc.

Effective: 2026-05-26
Filed: May 28, 2026, 4:05 PM ET

On May 26, 2026, the Board appointed Mr. Alex Buehler, age 51, to serve as the Company’s Interim President and Chief Executive Officer to serve in these positions until a permanent successor is appointed by the Board.

Departed

David Moon

President, Chief Executive Officer

ERII · Energy Recovery, Inc.

Effective: 2026-05-26
Successor: Alex Buehler
Filed: May 28, 2026, 4:05 PM ET

On May 25, 2026, Mr. David Moon informed the Board of Directors (the “Board”) of Energy Recovery, Inc. (the “Company”) of his intention to accelerate his previously announced retirement and resign from all positions within the Company, including as President, Chief Executive Officer and as a member of the Board, effective on May 26, 2026.

Departed

David Moon

Member of the Board

ERII · Energy Recovery, Inc.

Effective: 2026-05-26
Filed: May 28, 2026, 4:05 PM ET

On May 25, 2026, Mr. David Moon informed the Board of Directors (the “Board”) of Energy Recovery, Inc. (the “Company”) of his intention to accelerate his previously announced retirement and resign from all positions within the Company, including as President, Chief Executive Officer and as a member of the Board, effective on May 26, 2026.

Key facts

Extracted from this filing and checked against the source text.

Executive change SEC 8-K Item 5.02 confidence 0.95

Alex Buehler was appointed as Interim President and Chief Executive Officer at Energy Recovery, Inc..

Action: appointed
Role: Interim President and Chief Executive Officer

Exact text from the filing

On May 26, 2026, the Board appointed Mr. Alex Buehler, age 51, to serve as the Company’s Interim President and Chief Executive Officer to serve in these positions until a permanent successor is appointed by the Board.

View on SEC.gov

Executive change SEC 8-K Item 5.02 confidence 0.95

David Moon resigned as President, Chief Executive Officer at Energy Recovery, Inc..

Action: resigned
Role: President, Chief Executive Officer

Exact text from the filing

On May 25, 2026, Mr. David Moon informed the Board of Directors (the “Board”) of Energy Recovery, Inc. (the “Company”) of his intention to accelerate his previously announced retirement and resign from all positions within the Company, including as President, Chief Executive Officer and as a member of the Board, effective on May 26, 2026.

View on SEC.gov

Executive change SEC 8-K Item 5.02 confidence 0.95

David Moon resigned as Member of the Board at Energy Recovery, Inc..

Action: resigned
Role: Member of the Board

Exact text from the filing

On May 25, 2026, Mr. David Moon informed the Board of Directors (the “Board”) of Energy Recovery, Inc. (the “Company”) of his intention to accelerate his previously announced retirement and resign from all positions within the Company, including as President, Chief Executive Officer and as a member of the Board, effective on May 26, 2026.

View on SEC.gov

Energy Recovery, Inc. filing history →

Source: SEC EDGAR

accession 0001421517-26-000050

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