8-K filed May 28, 2026, 4:05 PM ET ticker ERII CIK 0001421517

leadership confidence high sentiment neutral materiality 0.60

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

Machine-readable event card

schema_version: secwatch.filing_event.v1
accession: 0001421517-26-000050
form_type: 8-K
ticker: ERII
cik: 0001421517
company_name: Energy Recovery, Inc.
filed_at: 2026-05-28T20:05:45+00:00
discovered_at: 2026-05-28T20:07:00.324691+00:00
generated_at: 2026-05-28T21:15:53.052017+00:00
sec_items: ["5.02", "9.01"]
event_type: leadership
sentiment: neutral
materiality_score: 0.6
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confidence: high
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text_url: https://secwatch.observer/filing/0001421517-26-000050.txt
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Executive movements

Machine-extracted from this filing. Every card cites the SEC source. See all recent executive movements.

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.

Source-grounded claims

70dc33d6e1

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

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.

SEC 8-K Item 5.02 confidence 0.95 SEC evidence

87a54184ba

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

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.

SEC 8-K Item 5.02 confidence 0.95 SEC evidence

ad310c8bf3

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

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.

SEC 8-K Item 5.02 confidence 0.95 SEC evidence

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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.

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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.

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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.

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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.

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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.

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Source: SEC EDGAR

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