Institutional shares held 44.8 Million
49.3K calls
28.9K puts
Total value of holdings $714M
$786K calls
$460K puts
Market Cap $890M
55,787,100 Shares Out.
Institutional ownership 80.23%
# of Institutions 197


Latest Institutional Activity in ERII

Top Purchases

Q1 2025
Juncture Wealth Strategies, LLC Shares Held: 11.2K ($179K)
Q1 2025
Rhumbline Advisers Shares Held: 83.1K ($1.33M)
Q1 2025
Gamma Investing LLC Shares Held: 1.38K ($22K)
Q1 2025
Advisor Net Financial, Inc Shares Held: 444 ($7.08K)
Q1 2025
Parallel Advisors, LLC Shares Held: 2.08K ($33.2K)

Top Sells

Q4 2024
Alpha Wave Global, LP Shares Held: 418K ($6.67M)
Q4 2024
Brown Capital Management LLC Shares Held: 2.92M ($46.6M)
Q4 2024
Diamond Hill Capital Management Inc Shares Held: 1.61M ($25.6M)
Q4 2024
Morgan Stanley Shares Held: 737K ($11.7M)
Q4 2024
Bnp Paribas Asset Management Holding S.A. Shares Held: 25.8K ($411K)

About ERII

Energy Recovery, Inc., together with its subsidiaries, designs, manufactures, and sells various solutions for the seawater reverse osmosis desalination and industrial wastewater treatment industries worldwide. The company operates through Water and Emerging Technologies segments. It offers a suite of products, including energy recovery devices, and high-pressure feed and recirculation pumps; hydraulic turbochargers and boosters; and spare parts, as well as repair, field, and commissioning services. The company also offers a solution to reduce energy consumption in natural gas processing and in refrigeration systems that use carbon dioxide. It provides its products under the ERI, Ultra PX, PX, Pressure Exchanger, PX Pressure Exchanger, PX PowerTrain, VorTeq, IsoBoost, AT, and AquaBold names to large engineering, procurement, and construction firms; end-users and industry consultants; original equipment manufacturers; and aftermarket customers. The company was incorporated in 1992 and is headquartered in San Leandro, California.


Insider Transactions at ERII

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
404K Shares
From 14 Insiders
Grant, award, or other acquisition 266K shares
Exercise of conversion of derivative security 59.7K shares
Other acquisition or disposition 65K shares
Open market or private purchase 13.5K shares
Sell / Disposition
336K Shares
From 13 Insiders
Open market or private sale 230K shares
Payment of exercise price or tax liability 32.8K shares
Other acquisition or disposition 65K shares
Sale (or disposition) back to the issuer 8.04K shares

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