ENERGY RECOVERY INC (ERII)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
191
Reporting holders
$406.0M
Reported value
85.6%
Of shares outstanding
3.0%
Held as options
+7
Holder change
Institutions report 43,679,654 shares against 51,044,875 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. A figure this high can overstate: where an adviser and a sub-adviser both report the same shares, both are counted.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $57.2M | 6,344,252 | 0.00% | 8q | +4.2%+$2.3M |
| Amundi | $36.1M | 4,003,535 | 0.01% | 17q | +7.0%+$2.4M |
| VANGUARD CAPITAL MANAGEMENT LLC | $19.7M | 2,183,718 | 0.00% | 2q | -2.1%-$419.9K |
| Legal & General Group Plc | $18.6M | 2,059,764 | 0.00% | 31q | +8.3%+$1.4M |
| FIL Ltd | $15.5M | 1,715,722 | 0.01% | 31q | -13.7%-$2.5M |
| GEODE CAPITAL MANAGEMENT, LLC | $15.3M | 1,697,550 | 0.00% | 31q | +31.1%+$3.6M |
| STATE STREET CORP | $14.7M | 1,625,893 | 0.00% | 31q | -8.3%-$1.3M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $11.4M | 1,263,667 | 0.00% | 2q | HELD |
| MORGAN STANLEY | $11.2M | 1,237,003 | 0.00% | 35q | +56.1%+$4.0M |
| MACKENZIE FINANCIAL CORP | $10.7M | 1,187,686 | 0.01% | new | NEW |
| Invesco Ltd. | $8.3M | 925,550 | 0.00% | 31q | +12.0%+$895.3K |
| DIMENSIONAL FUND ADVISORS LP | $7.9M | 878,724 | 0.00% | 31q | HELD |
| ArrowMark Colorado Holdings LLC | $7.6M | 847,000 | 0.32% | 3q | +64.1%+$3.0M |
| ROYCE & ASSOCIATES LP | $6.8M | 752,812 | 0.05% | 4q | +55.9%+$2.4M |
| AVENIR CORP | $6.3M | 693,886 | 0.76% | 31q | -15.1%-$1.1M |
| AMERIPRISE FINANCIAL INC | $6.1M | 679,236 | 0.00% | 11q | -93.5%-$88.8M |
| MARSHALL WACE, LLP | $6.1M | 677,248 | 0.00% | 7q | +537.1%+$5.1M |
| TUDOR INVESTMENT CORP ET AL | $6.0M | 471,905 | 0.01% | new | NEW |
| Kopion Asset Management, LLC | $5.8M | 639,545 | 3.65% | 5q | +26.2%+$1.2M |
| CITADEL ADVISORS LLC | $5.7M | 476,236 | 0.00% | 24q | +6.0%+$322.4K |
| GOLDMAN SACHS GROUP INC | $5.4M | 601,335 | 0.00% | 31q | +28.3%+$1.2M |
| 683 Capital Management, LLC | $4.8M | 530,000 | 0.23% | 2q | -3.6%-$180.4K |
| LAZARD ASSET MANAGEMENT LLC | $4.5M | 500,061 | 0.01% | 7q | +641.6%+$3.9M |
| NORTHERN TRUST CORP | $4.3M | 478,524 | 0.00% | 31q | +6.2%+$253.3K |
| Swiss Life Asset Management Ltd | $4.2M | 464,661 | 0.02% | 9q | +1.5%+$62.0K |
| Raiffeisen Bank International AG | $4.1M | 460,000 | 0.05% | 7q | +31.4%+$969.1K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | $4.0M | 439,817 | 0.01% | 31q | +1423.4%+$3.7M |
| CenterBook Partners LP | $3.8M | 420,507 | 0.19% | 2q | +54.7%+$1.3M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $3.7M | 193,919 | 0.00% | 8q | +166.6%+$2.3M |
| KLP KAPITALFORVALTNING AS | $3.6M | 400,311 | 0.01% | 7q | -1.0%-$37.9K |
| BNP PARIBAS FINANCIAL MARKETS | $3.6M | 396,421 | 0.00% | 31q | +46.3%+$1.1M |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $3.4M | 378,799 | 0.01% | 6q | +16.6%+$487.2K |
| VANGUARD FIDUCIARY TRUST CO | $3.3M | 367,399 | 0.00% | 2q | +0.9%+$28.3K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $3.3M | 367,118 | 0.00% | 31q | -14.9%-$578.8K |
| Sixth Street Partners Management Company, L.P. | $3.3M | 367,118 | 0.00% | new | NEW |
| PINNACLE ASSOCIATES LTD | $2.9M | 326,119 | 0.03% | 8q | -4.8%-$146.9K |
| GROUP ONE TRADING LLC | $2.6M | 21,778 | 0.00% | new | NEW |
| BROWN CAPITAL MANAGEMENT LLC | $2.6M | 282,866 | 0.51% | 14q | -47.4%-$2.3M |
| JPMORGAN CHASE & CO | $2.5M | 285,216 | 0.00% | 31q | +899.0%+$2.3M |
| AQR CAPITAL MANAGEMENT LLC | $2.4M | 262,844 | 0.00% | 10q | +350.6%+$1.8M |
| JANE STREET GROUP, LLC | $2.2M | 41,585 | 0.00% | 14q | -69.3%-$4.9M |
| TWO SIGMA INVESTMENTS, LP | $2.1M | 232,829 | 0.00% | 2q | +161.9%+$1.3M |
| D. E. Shaw & Co., Inc. | $2.0M | 218,707 | 0.00% | 17q | +1473.4%+$1.8M |
| IMC-Chicago, LLC | $1.9M | 66,819 | 0.00% | 2q | +433.1%+$1.5M |
| Nuveen, LLC | $1.6M | 173,713 | 0.00% | 6q | +5.6%+$83.2K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $1.5M | 169,005 | 0.00% | 31q | +2.0%+$29.7K |
| JUPITER ASSET MANAGEMENT LTD | $1.5M | 165,401 | 0.01% | 5q | +35.4%+$390.3K |
| ISTHMUS PARTNERS, LLC | $1.5M | 161,447 | 0.14% | 3q | +5.3%+$73.8K |
| Bank of New York Mellon Corp | $1.4M | 155,092 | 0.00% | 31q | +4.3%+$57.0K |
| Jump Financial, LLC | $1.4M | 152,127 | 0.01% | new | NEW |
| Polymer Capital Management (US) LLC | $1.3M | 144,705 | 0.17% | new | NEW |
| Squarepoint Ops LLC | $1.1M | 125,140 | 0.00% | 2q | +198.8%+$751.0K |
| RICE HALL JAMES & ASSOCIATES, LLC | $1.1M | 124,629 | 0.05% | 26q | +3.4%+$37.0K |
| NORDEA INVESTMENT MANAGEMENT AB | $1.1M | 124,691 | 0.00% | 14q | +18.1%+$168.0K |
| Y-Intercept (Hong Kong) Ltd | $1.1M | 120,366 | 0.02% | new | NEW |
| BANK OF AMERICA CORP /DE/ | $1.0M | 116,322 | 0.00% | 31q | +97.9%+$519.1K |
| EntryPoint Capital, LLC | $1.0M | 116,101 | 0.25% | 3q | +309.2%+$791.3K |
| Sender Co & Partners, Inc. | $1.0M | options only | 0.29% | new | OPTIONS |
| UBS Group AG | $998.9K | 110,739 | 0.00% | 31q | -12.1%-$137.1K |
| Swiss National Bank | $947.1K | 105,000 | 0.00% | 31q | HELD |
| MERCER GLOBAL ADVISORS INC /ADV | $917.1K | 101,670 | 0.00% | 18q | +179.8%+$589.3K |
| Balyasny Asset Management L.P. | $878.4K | 97,386 | 0.00% | 2q | +809.1%+$781.8K |
| BANK OF MONTREAL /CAN/ | $866.6K | 96,072 | 0.00% | new | NEW |
| Quantinno Capital Management LP | $823.6K | 91,306 | 0.00% | 3q | +640.5%+$712.4K |
| CARY STREET PARTNERS FINANCIAL LLC | $807.6K | 89,529 | 0.02% | 6q | +15.4%+$107.5K |
| CoreCommodity Management, LLC | $789.2K | 87,494 | 0.16% | 3q | +291.8%+$587.8K |
| Point72 Asset Management, L.P. | $747.0K | 82,819 | 0.00% | new | NEW |
| Russell Investments Group, Ltd. | $703.6K | 78,003 | 0.00% | 15q | +120.9%+$385.1K |
| HSBC HOLDINGS PLC | $701.6K | 78,741 | 0.00% | 4q | -28.9%-$285.8K |
| Old West Investment Management, LLC | $693.9K | 76,930 | 0.07% | 6q | +64.8%+$272.9K |
| Inspire Investing, LLC | $692.1K | 76,732 | 0.03% | 12q | +47.5%+$222.8K |
| MILFAM LLC | $676.5K | 75,000 | 0.53% | new | NEW |
| PRINCIPAL FINANCIAL GROUP INC | $669.4K | 74,217 | 0.00% | 5q | +8.1%+$49.9K |
| GABELLI FUNDS LLC | $667.5K | 74,000 | 0.00% | 31q | HELD |
| DEUTSCHE BANK AG\ | $618.1K | 68,525 | 0.00% | 34q | -50.9%-$641.1K |
| Corient Private Wealth LP | $600.9K | 66,614 | 0.00% | new | NEW |
| SEI INVESTMENTS CO | $583.1K | 64,643 | 0.00% | 2q | +24.7%+$115.5K |
| RHUMBLINE ADVISERS | $581.0K | 64,414 | 0.00% | 31q | -1.2%-$7.2K |
| SIMPLEX TRADING, LLC | $546.6K | 699 | 0.00% | 11q | -93.1%-$7.3M |
| ALLIANCEBERNSTEIN L.P. | $537.2K | 53,350 | 0.00% | 31q | +122.8%+$296.1K |
| NEUBERGER BERMAN GROUP LLC | $528.4K | 58,580 | 0.00% | new | NEW |
| NewEdge Advisors, LLC | $518.3K | 57,456 | 0.00% | new | NEW |
| WELLS FARGO & COMPANY/MN | $505.4K | 56,026 | 0.00% | 31q | +1.3%+$6.3K |
| ExodusPoint Capital Management, LP | $499.4K | 55,371 | 0.00% | new | NEW |
| CREDIT AGRICOLE S A | $496.1K | 55,000 | 0.00% | 2q | HELD |
| AVIVA PLC | $464.0K | 51,436 | 0.00% | 10q | +32.8%+$114.7K |
| Numerai GP LLC | $460.7K | 51,070 | 0.04% | 2q | +66.8%+$184.6K |
| VOYA INVESTMENT MANAGEMENT LLC | $437.7K | 48,521 | 0.00% | 31q | +3.6%+$15.2K |
| BARCLAYS PLC | $411.7K | 45,644 | 0.00% | 31q | +64.0%+$160.7K |
| Pathstone Holdings, LLC | $375.3K | 41,612 | 0.00% | 6q | +2.4%+$9.0K |
| Diametric Capital, LP | $370.5K | 41,078 | 0.04% | new | NEW |
| MISSION WEALTH MANAGEMENT, LP | $369.9K | 41,014 | 0.00% | 10q | +0.6%+$2.0K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $356.5K | 39,519 | 0.00% | 9q | -3.6%-$13.2K |
| HighTower Advisors, LLC | $346.7K | 38,434 | 0.00% | 10q | -16.4%-$68.1K |
| VANGUARD ASSET MANAGEMENT, Ltd | $326.8K | 36,225 | 0.00% | 2q | HELD |
| Brevan Howard Capital Management LP | $283.2K | 31,397 | 0.00% | new | NEW |
| ALLSTATE CORP | $281.0K | 31,153 | 0.00% | new | NEW |
| PRELUDE CAPITAL MANAGEMENT, LLC | $273.8K | 30,354 | 0.02% | new | NEW |
| CITIGROUP INC | $272.5K | 30,213 | 0.00% | 31q | +131.0%+$154.5K |
| Creative Planning | $267.4K | 29,645 | 0.00% | new | NEW |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-14 | 13G/A | Ameriprise Financial, Inc.with 9 co-filers | 1.3% |
| 2026-07-22 | 13G/A | AMUNDIwith 1 co-filers | 7.8% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 191 | $406.0M | 43,679,654 | 44 | 75 | 40 | 3.0% |
| Q1 2026 | 184 | $490.9M | 48,638,471 | 39 | 58 | 59 | 0.2% |
| Q4 2025 | 175 | $585.5M | 43,321,585 | 21 | 52 | 71 | 0.2% |
| Q3 2025 | 176 | $652.7M | 42,157,685 | 26 | 50 | 60 | 0.4% |
| Q2 2025 | 169 | $557.4M | 43,454,326 | 18 | 62 | 57 | 0.4% |
| Q1 2025 | 185 | $688.0M | 43,183,258 | 33 | 50 | 64 | 0.4% |
| Q4 2024 | 174 | $638.7M | 43,371,565 | 29 | 53 | 51 | 0.2% |
| Q3 2024 | 155 | $814.8M | 46,775,100 | 20 | 36 | 63 | 0.1% |
| Q2 2024 | 159 | $614.1M | 46,196,846 | 17 | 64 | 44 | 0.0% |
| Q1 2024 | 170 | $742.2M | 47,072,449 | 30 | 55 | 54 | 0.1% |
| Q4 2023 | 170 | $883.7M | 46,900,725 | 29 | 59 | 47 | 0.2% |
| Q3 2023 | 162 | $926.3M | 43,486,464 | 15 | 65 | 43 | 0.5% |
| Q2 2023 | 163 | $1.2B | 41,731,478 | 22 | 54 | 51 | 0.4% |
| Q1 2023 | 150 | $958.2M | 41,396,871 | 21 | 54 | 34 | 0.5% |
| Q4 2022 | 139 | $761.6M | 36,939,553 | 23 | 39 | 41 | 0.5% |
| Q3 2022 | 175 | $934.2M | 42,642,020 | 24 | 62 | 48 | 0.7% |
| Q2 2022 | 165 | $799.3M | 41,119,376 | 23 | 68 | 38 | 0.1% |
| Q1 2022 | 167 | $755.3M | 37,365,545 | 24 | 59 | 43 | 0.4% |
| Q4 2021 | 165 | $756.3M | 34,807,547 | 18 | 60 | 39 | 1.1% |
| Q3 2021 | 155 | $601.2M | 30,631,013 | 16 | 54 | 44 | 3.0% |
| Q2 2021 | 161 | $687.5M | 29,610,807 | 37 | 54 | 45 | 1.9% |
| Q1 2021 | 142 | $504.2M | 26,924,219 | 37 | 44 | 36 | 2.1% |
| Q4 2020 | 114 | $342.3M | 24,749,397 | 12 | 46 | 26 | 1.4% |
| Q3 2020 | 113 | $185.8M | 22,552,176 | 18 | 35 | 30 | 0.4% |
| Q2 2020 | 108 | $173.5M | 22,725,552 | 14 | 44 | 27 | 0.5% |
| Q1 2020 | 101 | $156.4M | 20,846,654 | 16 | 29 | 21 | 0.8% |
| Q4 2019 | 99 | $198.5M | 20,157,042 | 10 | 32 | 23 | 0.6% |
| Q3 2019 | 98 | $178.4M | 19,008,957 | 12 | 39 | 25 | 1.3% |
| Q2 2019 | 104 | $194.3M | 18,038,165 | 15 | 37 | 22 | 3.3% |
| Q1 2019 | 108 | $154.9M | 17,467,194 | 11 | 24 | 33 | 1.5% |
| Q4 2018 | 114 | $130.2M | 19,133,571 | 2 | 1 | 2 | 1.1% |