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 2026
Institutional positions in Energy Recovery, Inc. as of Mar 31, 2026. 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
- 197
- +8 vs. Q4 2025
- Shares held
- 44.3M
- +4.36M (+10.9%) vs. Q4 2025
- Total value
- $446.1M
- −$92.8M (−17.2%) vs. Q4 2025
- New holders
- 43
- 67 more added
- Sold out
- 35
- 64 more reduced
3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 199 | $395.6M |
| Q1 2026 | 197 | $446.1M |
| Q4 2025 | 192 | $590.9M |
| Q3 2025 | 192 | $677.5M |
| Q2 2025 | 186 | $580.1M |
| Q1 2025 | 204 | $712.7M |
| Q4 2024 | 189 | $661.9M |
| Q3 2024 | 171 | $841.4M |
| Q2 2024 | 174 | $636.2M |
| Q1 2024 | 192 | $738.1M |
| Q4 2023 | 192 | $900.4M |
| Q3 2023 | 182 | $976.5M |
| Q2 2023 | 186 | $1.25B |
| Q1 2023 | 175 | $1.02B |
| Q4 2022 | 174 | $903.1M |
| Q3 2022 | 177 | $930.6M |
| Q2 2022 | 165 | $801.2M |
| Q1 2022 | 168 | $754.7M |
| Q4 2021 | 162 | $745.9M |
| Q3 2021 | 154 | $582.9M |
| Q2 2021 | 158 | $661.5M |
| Q1 2021 | 143 | $487.9M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Energy Recovery, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Horizon Kinetics Asset Management LLC | 28,928 | $291.3K | 0.00% | +488+1.7% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 29,488 | $291.6K | 0.01% | −5,897−16.7% | Reduced |
| Numerai GP LLC | 30,609 | $308.2K | 0.03% | +30,609 | New |
| Alliancebernstein L.P. | 23,950 | $323.1K | 0.00% | −30,300−55.9% | Reduced |
| Great Lakes Advisors, LLC | 32,395 | $326.2K | 0.00% | +2,691+9.1% | Added |
| Virtu Financial LLC | 33,262 | $335.0K | 0.01% | +33,262 | New |
| Quadrature Capital Ltd | 33,559 | $337.9K | 0.00% | +33,559 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 34,437 | $346.8K | 0.00% | −11,250−24.6% | Reduced |
| Dynamic Technology Lab Private Ltd | 34,486 | $347.3K | 0.06% | +34,486 | New |
| Russell Investments Group, Ltd. | 35,311 | $355.6K | 0.00% | −914−2.5% | Reduced |
| Vanguard Asset Management, Ltd | 36,225 | $364.8K | 0.00% | +36,225 | New |
| Mercer Global Advisors Inc | 36,333 | $365.9K | 0.00% | −2,617−6.7% | Reduced |
| DnB Asset Management AS | 37,395 | $376.6K | 0.00% | −801−2.1% | Reduced |
| Aviva PLC | 38,719 | $389.9K | 0.00% | +4,745+14.0% | Added |
| Pathstone Holdings, LLC | 40,619 | $409.0K | 0.00% | −572−1.4% | Reduced |
| Mission Wealth Management, LP | 40,787 | $410.7K | 0.01% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 40,982 | $412.7K | 0.00% | +3,204+8.5% | Added |
| Squarepoint Ops LLC | 41,878 | $421.7K | 0.00% | +41,878 | New |
| HighTower Advisors, LLC | 45,987 | $463.1K | 0.00% | +8,845+23.8% | Added |
| Shelton Capital Management | 46,385 | $467.1K | 0.01% | 00.0% | Unchanged |
| Old West Investment Management, LLC | 46,676 | $470.0K | 0.05% | −3,268−6.5% | Reduced |
| Voya Investment Management LLC | 46,837 | $471.6K | 0.00% | +7,070+17.8% | Added |
| California State Teachers Retirement System | 48,624 | $489.6K | 0.00% | −384−0.8% | Reduced |
| Connective Capital Management, LLC | 49,026 | $493.7K | 0.41% | +49,026 | New |
| SEI Investments Co | 51,837 | $522.0K | 0.00% | +51,837 | New |
| CWM Advisors, LLC | 52,030 | $523.9K | 0.03% | +16,691+47.2% | Added |
| State of Wisconsin Investment Board | 53,126 | $535.0K | 0.00% | −60,540−53.3% | Reduced |
| Victory Capital Management Inc | 53,213 | $535.9K | 0.00% | +53,213 | New |
| Credit Agricole S A | 55,000 | $553.9K | 0.00% | +55,000 | New |
| XTX Topco Ltd | 56,479 | $568.7K | 0.01% | +27,590+95.5% | Added |
| KBC Group NV | 56,597 | $570.0K | 0.00% | −27,891−33.0% | Reduced |
| AQR Capital Management LLC | 58,330 | $587.4K | 0.00% | +42,153+260.6% | Added |
| Bank of America Corp | 58,768 | $591.8K | 0.00% | +5,428+10.2% | Added |
| Rhumbline Advisers | 65,217 | $656.7K | 0.00% | −6,906−9.6% | Reduced |
| Price T Rowe Associates Inc | 66,259 | $668.0K | 0.00% | +12,558+23.4% | Added |
| Lazard Asset Management LLC | 67,429 | $679.0K | 0.00% | +23,838+54.7% | Added |
| Principal Financial Group Inc | 68,682 | $691.6K | 0.00% | +5,644+9.0% | Added |
| Susquehanna International Group, LLP | 72,743 | $732.5K | 0.00% | +57,152+366.6% | Added |
| Gabelli Funds LLC | 74,000 | $745.2K | 0.01% | 00.0% | Unchanged |
| HRT Financial LP | 76,500 | $770.0K | 0.00% | +76,500 | New |
| Cary Street Partners Financial LLC | 77,614 | $781.6K | 0.02% | +22,865+41.8% | Added |
| Two Sigma Investments, LP | 88,899 | $895.2K | 0.00% | +88,899 | New |
| Nordea Investment Management AB | 105,558 | $1.04M | 0.00% | −8,136−7.2% | Reduced |
| Swiss National Bank | 105,000 | $1.06M | 0.00% | 00.0% | Unchanged |
| Marshall Wace, LLP | 106,297 | $1.07M | 0.00% | −3,093−2.8% | Reduced |
| HSBC Holdings PLC | 110,812 | $1.10M | 0.00% | +45,756+70.3% | Added |
| Rice Hall James & Associates, LLC | 120,522 | $1.21M | 0.07% | −1,476−1.2% | Reduced |
| Jupiter Asset Management Ltd | 122,129 | $1.23M | 0.01% | 00.0% | Unchanged |
| UBS Group AG | 125,943 | $1.27M | 0.00% | +24,133+23.7% | Added |
| Essex Investment Management Co LLC | 132,322 | $1.33M | 0.21% | −2,778−2.1% | Reduced |
| Conestoga Capital Advisors, LLC | 133,725 | $1.35M | 0.03% | 00.0% | Unchanged |
| Jane Street Group, LLC | 135,473 | $1.36M | 0.00% | +23,800+21.3% | Added |
| Trexquant Investment LP | 135,968 | $1.37M | 0.01% | +135,968 | New |
| Deutsche Bank AG | 139,605 | $1.41M | 0.00% | −31,701−18.5% | Reduced |
| Renaissance Technologies LLC | 144,265 | $1.45M | 0.00% | +41,280+40.1% | Added |
| Bank of New York Mellon Corp | 148,769 | $1.50M | 0.00% | −5,999−3.9% | Reduced |
| Isthmus Partners, LLC | 153,262 | $1.54M | 0.16% | +42,208+38.0% | Added |
| Nuveen, LLC | 164,488 | $1.66M | 0.00% | −170−0.1% | Reduced |
| UBS Asset Management Americas Inc | 165,708 | $1.67M | 0.00% | +6,054+3.8% | Added |
| Redmond Asset Management, LLC | 214,380 | $2.16M | 0.59% | −11,955−5.3% | Reduced |
| FMR LLC | 250,580 | $2.52M | 0.00% | +338+0.1% | Added |
| BNP Paribas Arbitrage, SA | 270,951 | $2.73M | 0.00% | +154,874+133.4% | Added |
| CenterBook Partners LP | 271,836 | $2.74M | 0.15% | +271,836 | New |
| Gsa Capital Partners LLP | 313,647 | $3.16M | 0.20% | +204,340+186.9% | Added |
| Millennium Management LLC | 322,341 | $3.25M | 0.00% | +127,809+65.7% | Added |
| Jacobs Levy Equity Management, Inc | 324,785 | $3.27M | 0.01% | −101,948−23.9% | Reduced |
| Raiffeisen Bank International AG | 350,000 | $3.43M | 0.05% | +50,000+16.7% | Added |
| Pinnacle Associates Ltd | 342,407 | $3.45M | 0.04% | −37,823−9.9% | Reduced |
| Vanguard Fiduciary Trust Co | 364,261 | $3.67M | 0.00% | +364,261 | New |
| SG Americas Securities, LLC | 364,337 | $3.67M | 0.00% | +202,221+124.7% | Added |
| Select Equity Group, L.P. | 394,208 | $3.97M | 0.02% | −379,369−49.0% | Reduced |
| KLP Kapitalforvaltning AS | 404,511 | $4.07M | 0.02% | +16,800+4.3% | Added |
| Charles Schwab Investment Management Inc | 431,288 | $4.34M | 0.00% | −13,302−3.0% | Reduced |
| Citadel Advisors LLC | 449,436 | $4.53M | 0.00% | +30,849+7.4% | Added |
| Northern Trust Corp | 450,437 | $4.54M | 0.00% | +12,040+2.7% | Added |
| Swiss Life Asset Management Ltd | 457,783 | $4.61M | 0.02% | +23,652+5.4% | Added |
| Goldman Sachs Group Inc | 468,535 | $4.72M | 0.00% | −138,641−22.8% | Reduced |
| Royce & Associates LP | 483,018 | $4.86M | 0.05% | +150,771+45.4% | Added |
| Kopion Asset Management, LLC | 506,965 | $5.11M | 3.97% | +172,496+51.6% | Added |
| Arrowstreet Capital, Limited Partnership | 514,102 | $5.18M | 0.00% | +165,915+47.7% | Added |
| ArrowMark Colorado Holdings LLC | 516,000 | $5.20M | 0.14% | +139,000+36.9% | Added |
| Brown Capital Management LLC | 538,063 | $5.42M | 0.77% | −226,730−29.6% | Reduced |
| 683 Capital Management, LLC | 550,000 | $5.54M | 0.51% | +550,000 | New |
| Diamond Hill Capital Management Inc | 673,035 | $6.78M | 0.04% | −215,323−24.2% | Reduced |
| Morgan Stanley | 792,691 | $7.98M | 0.00% | −180,603−18.6% | Reduced |
| Avenir Corp | 817,755 | $8.23M | 1.00% | −151,825−15.7% | Reduced |
| Invesco Ltd. | 826,296 | $8.32M | 0.00% | +80,260+10.8% | Added |
| Dimensional Fund Advisors LP | 877,431 | $8.84M | 0.00% | −72,058−7.6% | Reduced |
| Vanguard Portfolio Management LLC | 1,261,661 | $12.7M | 0.00% | +1,261,661 | New |
| Geode Capital Management, LLC | 1,295,108 | $13.0M | 0.00% | +34,214+2.7% | Added |
| State Street Corp | 1,772,948 | $17.9M | 0.00% | +8,426+0.5% | Added |
| Legal & General Group Plc | 1,902,525 | $19.2M | 0.00% | +558,678+41.6% | Added |
| FIL Ltd | 1,987,919 | $20.0M | 0.02% | −5,587−0.3% | Reduced |
| Vanguard Capital Management LLC | 2,230,270 | $22.5M | 0.00% | +2,230,270 | New |
| Amundi | 3,740,309 | $37.6M | 0.01% | +888,618+31.2% | Added |
| Ameriprise Financial Inc | 5,259,816 | $53.0M | 0.01% | +696,468+15.3% | Added |
| BlackRock, Inc. | 6,090,926 | $61.3M | 0.00% | −246,465−3.9% | Reduced |
| ACK Asset Management LLC | 0 | $0 | 0.00% | −677,251−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −385,687−100.0% | Sold out |
| Duff & Phelps Investment Management Co | 0 | $0 | 0.00% | −301,487−100.0% | Sold out |