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NASDAQ: ERII
Energy Recovery Inc Stock Ownership - Who owns Energy Recovery?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Energy Recovery Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Arve HanstveitDirector2026-04-062,419$10.29
$24.89kSell
Arve HanstveitDirector2026-04-02165,292$10.14
$1.68MSell
Arve HanstveitDirector2026-03-1025,000$10.96
$273.98kSell
Arve HanstveitDirector2026-03-0611,582$10.62
$122.94kSell
Arve HanstveitDirector2026-03-0538,418$10.71
$411.46kSell
Natarajan RamananChief Technology Officer2026-03-05272$10.57
$2.88kSell
Rodney ClementeSVP Water2026-03-0420,568$10.61
$218.31kSell
Natarajan RamananChief Technology Officer2026-03-032,724$10.22
$27.84kSell
William YeungChief Legal Officer2026-02-06646$15.14
$9.78kSell
Rodney ClementeSVP Water2026-02-05724$14.59
$10.56kSell

1 of 5

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Net Insider Buy/Sell (L12M) Ownership

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ERII Shareholders

What type of owners hold Energy Recovery Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Ole Peter Lorentzen41.62%21,985,907$229.75MInsider
Blackrock Inc12.00%6,337,391$66.23MInstitution
Ameriprise Financial Inc8.64%4,563,348$47.69MInstitution
Vanguard Group Inc7.29%3,852,438$40.26MInstitution
James Medanich6.25%3,300,000$34.49MInsider
Amundi5.40%2,851,691$29.80MInstitution
Fred Olav Johannessen4.32%2,283,851$23.87MInsider
Fil Ltd3.77%1,993,506$20.83MInstitution
State Street Corp3.34%1,764,522$18.44MInstitution
Legal General Group PLC2.54%1,343,847$14.04MInstitution

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ERII vs Pollution & Treatment Control Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ERII57.42%42.58%Net SellingNet Selling
ADUR3.02%0.00%
ARQ37.03%49.21%Net BuyingNet Buying
ZONE33.51%7.52%Net Buying
SCWO1.90%98.10%Net Selling
View Top Pollution & Treatment Control Stocks

Energy Recovery Stock Ownership FAQ

Who owns Energy Recovery?

Energy Recovery (NASDAQ: ERII) is owned by 82.91% institutional shareholders, 61.49% Energy Recovery insiders, and 0.00% retail investors. Ole Peter Lorentzen is the largest individual Energy Recovery shareholder, owning 21.99M shares representing 41.62% of the company. Ole Peter Lorentzen's Energy Recovery shares are currently valued at $232.61M.

If you're new to stock investing, here's how to buy Energy Recovery stock.
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