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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, Q3 2025

Institutional positions in Energy Recovery, Inc. as of Sep 30, 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
192
+7 vs. Q2 2025
Shares held
43.9M
−1.44M (−3.2%) vs. Q2 2025
Total value
$677.5M
+$97.8M (+16.9%) vs. Q2 2025
New holders
31
64 more added
Sold out
24
68 more reduced

1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: 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 holdersQ3 2025: 192 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 heldQ3 2025: $677.5M
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, Q3 2025

Shares, value and share of portfolio for each institution holding Energy Recovery, Inc.; share changes are against Q2 2025.

Institutions holding ERII in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.5,776,383$89.1M0.00%+132,139+2.3%Added
Ameriprise Financial Inc4,966,296$76.6M0.02%−434,748−8.0%Reduced
Vanguard Group Inc3,762,742$58.0M0.00%+137,338+3.8%Added
FIL Ltd2,040,896$31.5M0.02%−139,073−6.4%Reduced
Brown Capital Management LLC1,602,982$24.7M1.02%−876,312−35.3%Reduced
State Street Corp1,439,242$22.2M0.00%−20,344−1.4%Reduced
Legal & General Group Plc1,307,738$20.2M0.00%+318,584+32.2%Added
Geode Capital Management, LLC1,291,743$19.9M0.00%−1,185−0.1%Reduced
KBC Group NV1,228,815$18.9M0.05%+22,249+1.8%Added
Avenir Corp1,025,816$15.8M1.65%−32,144−3.0%Reduced
Morgan Stanley930,859$14.4M0.00%−103,593−10.0%Reduced
Dimensional Fund Advisors LP925,097$14.3M0.00%+22,708+2.5%Added
Diamond Hill Capital Management Inc894,927$13.8M0.07%−159,686−15.1%Reduced
Select Equity Group, L.P.751,042$11.6M0.05%−18,664−2.4%Reduced
Amundi673,131$10.5M0.00%+314,752+87.8%Added
Invesco Ltd.644,064$9.93M0.00%−217,280−25.2%Reduced
Goldman Sachs Group Inc554,333$8.55M0.00%+90,223+19.4%Added
Falcon Edge Capital, LP527,871$8.14M0.82%−186,450−26.1%Reduced
Qube Research & Technologies Ltd498,870$7.69M0.01%+39,445+8.6%Added
Northern Trust Corp487,736$7.52M0.00%−8,924−1.8%Reduced
Silvercrest Asset Management Group LLC480,858$7.41M0.05%−13,479−2.7%Reduced
Charles Schwab Investment Management Inc449,274$6.93M0.00%−1,066−0.2%Reduced
Swiss Life Asset Management Ltd434,131$6.69M0.03%+964+0.2%Added
Pinnacle Associates Ltd399,336$6.16M0.08%+1650.0%Added
KLP Kapitalforvaltning AS363,411$5.60M0.02%−48,500−11.8%Reduced
Jacobs Levy Equity Management, Inc355,295$5.48M0.02%−69,320−16.3%Reduced
D. E. Shaw & Co., Inc.346,801$5.35M0.00%−26,891−7.2%Reduced
Citadel Advisors LLC331,820$5.12M0.00%+293,741+771.4%Added
Kopion Asset Management, LLC318,287$4.91M3.18%+15,450+5.1%Added
Royce & Associates LP317,645$4.90M0.05%+317,645New
Duff & Phelps Investment Management Co308,006$4.75M0.05%+59,078+23.7%Added
Wellington Management Group LLP302,525$4.66M0.00%+302,525New
Raymond James Financial Inc296,353$4.57M0.00%−32,222−9.8%Reduced
Raiffeisen Bank International AG290,000$4.45M0.06%+30,000+11.5%Added
UBS Group AG245,855$3.79M0.00%−139,749−36.2%Reduced
Marshall Wace, LLP239,389$3.69M0.00%+189,175+376.7%Added
BNP Paribas Arbitrage, SA235,313$3.63M0.00%+80,233+51.7%Added
Redmond Asset Management, LLC229,898$3.55M0.87%−12,058−5.0%Reduced
Deutsche Bank AG228,917$3.53M0.00%+5,891+2.6%Added
Arrowstreet Capital, Limited Partnership223,845$3.45M0.00%+84,522+60.7%Added
Assenagon Asset Management S.A.212,541$3.28M0.00%+4,370+2.1%Added
FMR LLC207,501$3.20M0.00%+193,974+1,434.0%Added
Montanaro Asset Management Ltd205,560$3.17M0.79%00.0%Unchanged
HRT Financial LP177,801$2.74M0.01%+41,360+30.3%Added
Nuveen, LLC171,857$2.65M0.00%−33,772−16.4%Reduced
UBS Asset Management Americas Inc168,665$2.60M0.00%−70,449−29.5%Reduced
Candriam Luxembourg S.C.A.163,157$2.52M0.01%00.0%Unchanged
Jupiter Asset Management Ltd162,463$2.51M0.02%−23,852−12.8%Reduced
SG Americas Securities, LLC161,813$2.50M0.01%+59,234+57.7%Added
Bank of New York Mellon Corp158,715$2.45M0.00%−4,362−2.7%Reduced
Jane Street Group, LLC154,109$2.38M0.00%+112,154+267.3%Added
Rice Hall James & Associates, LLC149,272$2.30M0.13%−70,805−32.2%Reduced
Lazard Asset Management LLC145,947$2.25M0.00%+103,326+242.4%Added
Essex Investment Management Co LLC137,886$2.13M0.33%−8,018−5.5%Reduced
State of Wisconsin Investment Board136,296$2.10M0.00%00.0%Unchanged
Nordea Investment Management AB133,916$2.05M0.00%+324+0.2%Added
Conestoga Capital Advisors, LLC130,370$2.01M0.03%+17,950+16.0%Added
Millennium Management LLC128,075$1.97M0.00%+31,250+32.3%Added
Van Eck Associates Corp123,573$1.91M0.00%−16,417−11.7%Reduced
JPMorgan Chase & Co119,450$1.84M0.00%−81,155−40.5%Reduced
Mackenzie Financial Corp117,228$1.81M0.00%+117,228New
Dark Forest Capital Management LP110,704$1.71M0.06%+84,402+320.9%Added
Trexquant Investment LP109,149$1.68M0.02%+56,353+106.7%Added
Swiss National Bank105,000$1.62M0.00%00.0%Unchanged
Barclays PLC90,768$1.40M0.00%−16,842−15.7%Reduced
Engineers Gate Manager LP78,007$1.20M0.01%+63,932+454.2%Added
Rhumbline Advisers77,967$1.20M0.00%−2,236−2.8%Reduced
Bank of America Corp75,638$1.17M0.00%−123,746−62.1%Reduced
Gabelli Funds LLC74,000$1.14M0.01%00.0%Unchanged
American Century Companies Inc62,792$968.3K0.00%+19,017+43.4%Added
NJ State Employees Deferred Compensation Plan59,000$909.8K0.10%00.0%Unchanged
Renaissance Technologies LLC55,600$857.4K0.00%−85,500−60.6%Reduced
Alliancebernstein L.P.54,250$836.5K0.00%00.0%Unchanged
California State Teachers Retirement System53,078$818.5K0.00%+20.0%Added
Cary Street Partners Financial LLC52,772$813.7K0.02%+6,745+14.7%Added
Wells Fargo & Company49,352$761.0K0.00%+4,759+10.7%Added
Campbell & CO Investment Adviser LLC48,753$751.8K0.06%+6,598+15.7%Added
Price T Rowe Associates Inc47,903$739.0K0.00%+5,491+12.9%Added
Shelton Capital Management46,385$715.3K0.02%−40,000−46.3%Reduced
Universal- Beteiligungs- und Servicegesellschaft mbH45,687$704.5K0.00%+19,226+72.7%Added
Teacher Retirement System of Texas45,436$700.6K0.00%−19,669−30.2%Reduced
Mission Wealth Management, LP44,500$686.2K0.01%00.0%Unchanged
Principal Financial Group Inc43,881$676.6K0.00%+12,118+38.2%Added
Sargent Investment Group, LLC43,640$672.9K0.10%−16,230−27.1%Reduced
Old West Investment Management, LLC43,598$672.3K0.15%+2,021+4.9%Added
Gsa Capital Partners LLP40,876$630.0K0.05%−32,429−44.2%Reduced
Verition Fund Management LLC40,533$625.0K0.00%+12,257+43.3%Added
Davy Global Fund Management Ltd40,109$618.5K0.04%−29,859−42.7%Reduced
DnB Asset Management AS38,196$589.0K0.00%00.0%Unchanged
Great West Life Assurance Co37,561$576.0K0.00%+4,013+12.0%Added
Franklin Resources Inc37,271$574.7K0.00%−1,296−3.4%Reduced
Mirae Asset Global ETFs Holdings Ltd.37,246$574.3K0.00%−3,845−9.4%Reduced
HighTower Advisors, LLC37,150$572.9K0.00%00.0%Unchanged
Bank of Montreal36,792$567.3K0.00%+36,792New
Skandinaviska Enskilda Banken AB (publ)36,649$558.5K0.00%+914+2.6%Added
Y-Intercept (Hong Kong) Ltd35,832$552.5K0.01%−43,329−54.7%Reduced
Voloridge Investment Management, LLC35,482$547.1K0.00%−21,088−37.3%Reduced
Russell Investments Group, Ltd.34,174$527.0K0.00%+10,875+46.7%Added
Aviva PLC32,375$499.2K0.00%−5,037−13.5%Reduced
Intech Investment Management LLC31,722$489.2K0.00%−4,346−12.0%Reduced