Energy Recovery, Inc. (ERII)

About Energy Recovery, Inc.

Energy Recovery Inc designs and manufactures energy-saving technologies. The firm uses its proprietary pressure exchanger technology to help customers in multiple industries improve their operations and lower their emissions. Using its proprietary technology, it offers energy recovery devices, including pressure exchangers, pumps, and turbochargers, mainly used for seawater desalination and wastewater treatment. Additionally, the company is involved in the development of emerging technologies, such as the PX G1300 used in industrial and commercial refrigeration applications. The firm's reportable operating segments are: Water, which generates maximum revenue, and Emerging Technologies. Geographically, it generates maximum revenue from the Middle East, and the rest from other markets.

Institutional ownership

In 13F filings for the quarter ended June 30, 2026, 190 institutions reported holding ERII, with 39.7 million shares worth $358.3 million in aggregate. The largest reported holder was BlackRock, with 6.3 million shares worth $57.2 million. Of the 5 largest holders listed below, 3 added shares and 2 reduced their positions during the quarter.

Form 13F is a quarterly report that institutional investment managers with at least $100 million in qualifying securities file with the SEC. It lists long positions as of the last day of the quarter and is due within 45 days of quarter end, so these holdings describe that date rather than today.

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