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Energy Recovery, Inc.

ERII
Exchange
Nasdaq
Industry
Special Industry Machinery, NEC
SEC CIK
0001421517

In the last 90 days, Energy Recovery, Inc. insiders filed 0 open-market purchases and 2 sales; 199 institutions reported holding it in 13F filings for Q2 2026, worth $395.6M in total; no superinvestor holds it.

13F holders, Q1 2025

Institutional positions in Energy Recovery, Inc. as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
204
+18 vs. Q4 2024
Shares held
44.9M
+164.9K (+0.4%) vs. Q4 2024
Total value
$712.7M
+$55.6M (+8.5%) vs. Q4 2024
New holders
38
55 more added
Sold out
20
71 more reduced

3 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ERII on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2025: 204 institutions
Q1 2021: 143 institutionsQ2 2021: 158 institutionsQ3 2021: 154 institutionsQ4 2021: 162 institutionsQ1 2022: 168 institutionsQ2 2022: 165 institutionsQ3 2022: 177 institutionsQ4 2022: 174 institutionsQ1 2023: 175 institutionsQ2 2023: 186 institutionsQ3 2023: 182 institutionsQ4 2023: 192 institutionsQ1 2024: 192 institutionsQ2 2024: 174 institutionsQ3 2024: 171 institutionsQ4 2024: 189 institutionsQ1 2025: 204 institutionsQ2 2025: 186 institutionsQ3 2025: 192 institutionsQ4 2025: 192 institutionsQ1 2026: 197 institutionsQ2 2026: 199 institutions
Value heldQ1 2025: $712.7M
Q1 2021: $487.9MQ2 2021: $661.5MQ3 2021: $582.9MQ4 2021: $745.9MQ1 2022: $754.7MQ2 2022: $801.2MQ3 2022: $930.6MQ4 2022: $903.1MQ1 2023: $1.02BQ2 2023: $1.25BQ3 2023: $976.5MQ4 2023: $900.4MQ1 2024: $738.1MQ2 2024: $636.2MQ3 2024: $841.4MQ4 2024: $661.9MQ1 2025: $712.7MQ2 2025: $580.1MQ3 2025: $677.5MQ4 2025: $590.9MQ1 2026: $446.1MQ2 2026: $395.6M
Institutions holding ERII and their total value by quarter
QuarterHoldersValue
Q2 2026199$395.6M
Q1 2026197$446.1M
Q4 2025192$590.9M
Q3 2025192$677.5M
Q2 2025186$580.1M
Q1 2025204$712.7M
Q4 2024189$661.9M
Q3 2024171$841.4M
Q2 2024174$636.2M
Q1 2024192$738.1M
Q4 2023192$900.4M
Q3 2023182$976.5M
Q2 2023186$1.25B
Q1 2023175$1.02B
Q4 2022174$903.1M
Q3 2022177$930.6M
Q2 2022165$801.2M
Q1 2022168$754.7M
Q4 2021162$745.9M
Q3 2021154$582.9M
Q2 2021158$661.5M
Q1 2021143$487.9M

Institutions, Q1 2025

Shares, value and share of portfolio for each institution holding Energy Recovery, Inc.; share changes are against Q4 2024.

Institutions holding ERII in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.5,994,038$95.2M0.00%+379,575+6.8%Added
Ameriprise Financial Inc5,138,893$81.7M0.02%+184,942+3.7%Added
Vanguard Group Inc3,494,872$55.5M0.00%+242,494+7.5%Added
Brown Capital Management LLC2,595,951$41.2M1.24%−323,502−11.1%Reduced
FIL Ltd1,952,199$31.0M0.03%−132,678−6.4%Reduced
State Street Corp1,432,845$22.8M0.00%−17,765−1.2%Reduced
Geode Capital Management, LLC1,388,924$22.1M0.00%+31,181+2.3%Added
KBC Group NV1,242,889$19.8M0.06%00.0%Unchanged
Diamond Hill Capital Management Inc1,184,674$18.8M0.09%−422,308−26.3%Reduced
Baillie Gifford & Co1,099,276$17.5M0.02%−20,565−1.8%Reduced
Avenir Corp1,066,654$16.9M1.78%−64,719−5.7%Reduced
Morgan Stanley910,168$14.5M0.00%+173,519+23.6%Added
Legal & General Group Plc876,013$13.9M0.00%+193,375+28.3%Added
Dimensional Fund Advisors LP806,371$12.8M0.00%+38,280+5.0%Added
Select Equity Group, L.P.667,157$10.6M0.05%+534,662+403.5%Added
Goldman Sachs Group Inc643,534$10.2M0.00%−104,268−13.9%Reduced
Robeco Schweiz AG612,689$9.74M0.24%−5,580−0.9%Reduced
Invesco Ltd.604,078$9.60M0.00%−254,231−29.6%Reduced
New York State Common Retirement Fund578,413$9.19M0.01%−3,400−0.6%Reduced
Northern Trust Corp541,561$8.61M0.00%−18,026−3.2%Reduced
Silvercrest Asset Management Group LLC494,337$7.86M0.06%−2,832−0.6%Reduced
Charles Schwab Investment Management Inc471,490$7.49M0.00%−3,983−0.8%Reduced
Swiss Life Asset Management Ltd351,913$5.59M0.04%+2,659+0.8%Added
Raymond James Financial Inc350,065$5.56M0.00%−40,451−10.4%Reduced
Amundi347,235$5.19M0.00%−5,023−1.4%Reduced
KLP Kapitalforvaltning AS309,600$4.92M0.02%−8,100−2.5%Reduced
Falcon Edge Capital, LP307,621$4.89M2.18%−110,413−26.4%Reduced
Deutsche Bank AG295,760$4.70M0.00%−4,557−1.5%Reduced
Citadel Advisors LLC282,010$4.48M0.00%+234,127+489.0%Added
Pinnacle Associates Ltd279,726$4.44M0.07%−11,200−3.8%Reduced
D. E. Shaw & Co., Inc.262,639$4.17M0.00%−116,779−30.8%Reduced
Duff & Phelps Investment Management Co248,928$3.96M0.05%−9,448−3.7%Reduced
Raiffeisen Bank International AG245,000$3.91M0.06%+10,000+4.3%Added
Renaissance Technologies LLC241,500$3.84M0.01%+51,100+26.8%Added
Rice Hall James & Associates, LLC239,518$3.81M0.22%−836−0.3%Reduced
Nuveen, LLC239,242$3.80M0.00%+239,242New
Redmond Asset Management, LLC238,541$3.79M0.98%+1,881+0.8%Added
JPMorgan Chase & Co237,241$3.77M0.00%−32,873−12.2%Reduced
Montanaro Asset Management Ltd216,700$3.44M1.01%−205,700−48.7%Reduced
UniSuper Management Pty Ltd215,222$3.42M0.03%−378,896−63.8%Reduced
Bank of America Corp215,055$3.42M0.00%+19,448+9.9%Added
UBS Asset Management Americas Inc206,038$3.27M0.00%+19,992+10.7%Added
Qube Research & Technologies Ltd186,777$2.97M0.00%−46,926−20.1%Reduced
Essex Investment Management Co LLC179,564$2.85M0.60%−39,767−18.1%Reduced
Millennium Management LLC176,486$2.80M0.00%+42,445+31.7%Added
Candriam Luxembourg S.C.A.162,976$2.59M0.02%00.0%Unchanged
Bank of New York Mellon Corp162,214$2.58M0.00%−152−0.1%Reduced
Assenagon Asset Management S.A.146,907$2.33M0.00%−3,652−2.4%Reduced
State of Wisconsin Investment Board140,437$2.23M0.01%+2,376+1.7%Added
Arrowstreet Capital, Limited Partnership136,448$2.17M0.00%+136,448New
Nordea Investment Management AB131,034$2.08M0.00%+5,315+4.2%Added
Trexquant Investment LP125,959$2.00M0.02%+4,056+3.3%Added
Jane Street Group, LLC122,369$1.94M0.00%+43,089+54.4%Added
BNP Paribas Arbitrage, SA118,441$1.88M0.00%+78,849+199.2%Added
Voloridge Investment Management, LLC112,379$1.79M0.01%−48,725−30.2%Reduced
Swiss National Bank112,300$1.78M0.00%00.0%Unchanged
Dark Forest Capital Management LP110,800$1.76M0.08%+78,326+241.2%Added
Sargent Investment Group, LLC108,395$1.72M0.28%−87,697−44.7%Reduced
ExodusPoint Capital Management, LP99,033$1.57M0.02%+99,033New
Van Eck Associates Corp98,615$1.57M0.00%+630+0.6%Added
Shelton Capital Management90,385$1.44M0.03%00.0%Unchanged
Conestoga Capital Advisors, LLC89,525$1.42M0.02%00.0%Unchanged
Balyasny Asset Management LLC85,257$1.35M0.00%+85,257New
Rhumbline Advisers83,125$1.32M0.00%+5,781+7.5%Added
Susquehanna International Group, LLP81,368$1.29M0.00%+50,630+164.7%Added
Barclays PLC78,604$1.25M0.00%−28,211−26.4%Reduced
Janus Henderson Group PLC77,456$1.24M0.00%+53,281+220.4%Added
Lagoda Investment Management, L.P.74,107$1.18M0.75%−116,663−61.2%Reduced
Gabelli Funds LLC74,000$1.18M0.01%00.0%Unchanged
Davy Global Fund Management Ltd68,510$1.09M0.13%−640−0.9%Reduced
HRT Financial LP62,791$997.0K0.01%+17,265+37.9%Added
UBS Group AG62,275$989.5K0.00%−12,894−17.2%Reduced
Healthcare of Ontario Pension Plan Trust Fund61,700$980.4K0.00%00.0%Unchanged
OP Asset Management Ltd59,428$944.3K0.02%+59,428New
NJ State Employees Deferred Compensation Plan59,000$937.5K0.12%00.0%Unchanged
Engineers Gate Manager LP57,378$911.7K0.02%−21,499−27.3%Reduced
Alliancebernstein L.P.54,250$862.0K0.00%−13,435−19.8%Reduced
California State Teachers Retirement System53,865$855.9K0.00%00.0%Unchanged
Two Sigma Investments, LP53,441$849.2K0.00%+37,876+243.3%Added
SG Americas Securities, LLC49,969$794.0K0.00%−56,332−53.0%Reduced
Two Sigma Advisers, LP49,612$788.3K0.00%+37,400+306.3%Added
Lazard Asset Management LLC49,446$784.0K0.00%+15,105+44.0%Added
Citigroup Inc47,494$754.7K0.00%−1,053−2.2%Reduced
Marshall Wace, LLP47,284$751.3K0.00%−130,346−73.4%Reduced
Algert Global LLC47,050$747.6K0.02%+47,050New
Wells Fargo & Company45,651$725.4K0.00%−12,001−20.8%Reduced
Bank of Montreal45,478$722.6K0.00%−3,880−7.9%Reduced
Mirae Asset Global ETFs Holdings Ltd.44,929$713.9K0.00%+3,185+7.6%Added
Mission Wealth Management, LP44,500$707.1K0.02%00.0%Unchanged
Graham Capital Management, L.P.43,881$697.3K0.02%+3,206+7.9%Added
Mercer Global Advisors Inc43,608$692.9K0.00%−1,151−2.6%Reduced
Old West Investment Management, LLC41,742$663.3K0.24%+41,742New
Price T Rowe Associates Inc41,246$656.0K0.00%+2,971+7.8%Added
DnB Asset Management AS38,196$606.9K0.00%+801+2.1%Added
Cary Street Partners Financial LLC33,974$539.8K0.02%+33,974New
Great West Life Assurance Co33,548$535.0K0.00%00.0%Unchanged
MetLife Investment Management33,598$533.9K0.00%−532−1.6%Reduced
HighTower Advisors, LLC32,950$523.6K0.00%00.0%Unchanged
Franklin Resources Inc31,827$505.7K0.00%+606+1.9%Added
Susquehanna Fundamental Investments, LLC31,676$503.3K0.01%−26,796−45.8%Reduced