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David Moon departed Energy Recovery, Inc. as President and Chief Executive Officer.

Moon notified Energy Recovery's board of his intent to retire upon appointment of a successor; he remains in seat during the search and will provide advisory support through the transition. Pairs with CFO Mike Mancini's same-day resignation (move-2026-246) - a tandem reset at the Tracy, CA pressure-exchanger maker as it pivots from desalination toward hydrogen, CO2 refrigeration and wastewater treatment.

Press release ↗

Mike Mancini departed Energy Recovery, Inc. as Chief Financial Officer.

Mancini steps down as CFO of Energy Recovery (NASDAQ: ERII) effective immediately, with the 8-K explicitly noting no disagreement with the company. Departure pairs with CEO David Moon's announced retirement intent — a tandem leadership reset at the Tracy, CA pressure-exchanger maker as it pivots into hydrogen, CO2 refrigeration, and wastewater-treatment crossovers.

SEC filing ↗

Aidan Ryan has stepped into the role of Interim Chief Financial Officer at Energy Recovery, Inc. (from Vice President of Finance, Energy Recovery, Inc.).

Ryan, 42, slides up from VP of Finance to Interim CFO at Energy Recovery — a fast-track for someone who joined only two years ago from Astranis Space Technologies (head of finance there). Compensation: $327,600 base, $12K/month interim stipend, $215K RSU grant. Wharton MBA / Michigan undergrad — likely a stalking-horse for the permanent role as the company runs a parallel CEO search.

SEC filing ↗

Amanuel Haile-Mariam has been named Senior Managing Director and Co-Chief Investment Officer at HA Sustainable Infrastructure Capital (from Senior Managing Director, Grid-Connected Investments, HA Sustainable Infrastructure Capital).

Haile-Mariam was the architect of HASI's $1.2B Sunzia transmission investment and grew the grid-connected book since joining in 2021. Promotion to co-CIO (paired with Reynolds) formalizes a split investment-leadership structure at the NYSE-listed sustainable-infra investor as it leans further into transmission and behind-the-meter alongside its core grid-scale solar and wind portfolio.

Press release ↗

Annmarie Reynolds has been named Senior Managing Director and Co-Chief Investment Officer at HA Sustainable Infrastructure Capital (from Senior Managing Director, Fuels, Transport and Nature Investments, HA Sustainable Infrastructure Capital).

Reynolds built HASI's Fuels, Transport and Nature investment business from scratch starting in 2022 (RNG, transport-fuel infrastructure, nature-based assets). Her co-CIO appointment signals HASI's ambition to keep diversifying beyond grid-scale solar and wind as renewable tax-credit policy uncertainty pushes lenders to widen the addressable book.

Press release ↗

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