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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 6,090,926 | $61.3M | 0.00% | −246,465−3.9% | Reduced |
| Ameriprise Financial Inc | 5,259,816 | $53.0M | 0.01% | +696,468+15.3% | Added |
| Amundi | 3,740,309 | $37.6M | 0.01% | +888,618+31.2% | Added |
| Vanguard Capital Management LLC | 2,230,270 | $22.5M | 0.00% | +2,230,270 | New |
| FIL Ltd | 1,987,919 | $20.0M | 0.02% | −5,587−0.3% | Reduced |
| Legal & General Group Plc | 1,902,525 | $19.2M | 0.00% | +558,678+41.6% | Added |
| State Street Corp | 1,772,948 | $17.9M | 0.00% | +8,426+0.5% | Added |
| Geode Capital Management, LLC | 1,295,108 | $13.0M | 0.00% | +34,214+2.7% | Added |
| Vanguard Portfolio Management LLC | 1,261,661 | $12.7M | 0.00% | +1,261,661 | New |
| Dimensional Fund Advisors LP | 877,431 | $8.84M | 0.00% | −72,058−7.6% | Reduced |
| Invesco Ltd. | 826,296 | $8.32M | 0.00% | +80,260+10.8% | Added |
| Avenir Corp | 817,755 | $8.23M | 1.00% | −151,825−15.7% | Reduced |
| Morgan Stanley | 792,691 | $7.98M | 0.00% | −180,603−18.6% | Reduced |
| Diamond Hill Capital Management Inc | 673,035 | $6.78M | 0.04% | −215,323−24.2% | Reduced |
| 683 Capital Management, LLC | 550,000 | $5.54M | 0.51% | +550,000 | New |
| Brown Capital Management LLC | 538,063 | $5.42M | 0.77% | −226,730−29.6% | Reduced |
| ArrowMark Colorado Holdings LLC | 516,000 | $5.20M | 0.14% | +139,000+36.9% | Added |
| Arrowstreet Capital, Limited Partnership | 514,102 | $5.18M | 0.00% | +165,915+47.7% | Added |
| Kopion Asset Management, LLC | 506,965 | $5.11M | 3.97% | +172,496+51.6% | Added |
| Royce & Associates LP | 483,018 | $4.86M | 0.05% | +150,771+45.4% | Added |
| Goldman Sachs Group Inc | 468,535 | $4.72M | 0.00% | −138,641−22.8% | Reduced |
| Swiss Life Asset Management Ltd | 457,783 | $4.61M | 0.02% | +23,652+5.4% | Added |
| Northern Trust Corp | 450,437 | $4.54M | 0.00% | +12,040+2.7% | Added |
| Citadel Advisors LLC | 449,436 | $4.53M | 0.00% | +30,849+7.4% | Added |
| Charles Schwab Investment Management Inc | 431,288 | $4.34M | 0.00% | −13,302−3.0% | Reduced |
| KLP Kapitalforvaltning AS | 404,511 | $4.07M | 0.02% | +16,800+4.3% | Added |
| Select Equity Group, L.P. | 394,208 | $3.97M | 0.02% | −379,369−49.0% | Reduced |
| SG Americas Securities, LLC | 364,337 | $3.67M | 0.00% | +202,221+124.7% | Added |
| Vanguard Fiduciary Trust Co | 364,261 | $3.67M | 0.00% | +364,261 | New |
| Pinnacle Associates Ltd | 342,407 | $3.45M | 0.04% | −37,823−9.9% | Reduced |
| Raiffeisen Bank International AG | 350,000 | $3.43M | 0.05% | +50,000+16.7% | Added |
| Jacobs Levy Equity Management, Inc | 324,785 | $3.27M | 0.01% | −101,948−23.9% | Reduced |
| Millennium Management LLC | 322,341 | $3.25M | 0.00% | +127,809+65.7% | Added |
| Gsa Capital Partners LLP | 313,647 | $3.16M | 0.20% | +204,340+186.9% | Added |
| CenterBook Partners LP | 271,836 | $2.74M | 0.15% | +271,836 | New |
| BNP Paribas Arbitrage, SA | 270,951 | $2.73M | 0.00% | +154,874+133.4% | Added |
| FMR LLC | 250,580 | $2.52M | 0.00% | +338+0.1% | Added |
| Redmond Asset Management, LLC | 214,380 | $2.16M | 0.59% | −11,955−5.3% | Reduced |
| UBS Asset Management Americas Inc | 165,708 | $1.67M | 0.00% | +6,054+3.8% | Added |
| Nuveen, LLC | 164,488 | $1.66M | 0.00% | −170−0.1% | Reduced |
| Isthmus Partners, LLC | 153,262 | $1.54M | 0.16% | +42,208+38.0% | Added |
| Bank of New York Mellon Corp | 148,769 | $1.50M | 0.00% | −5,999−3.9% | Reduced |
| Renaissance Technologies LLC | 144,265 | $1.45M | 0.00% | +41,280+40.1% | Added |
| Deutsche Bank AG | 139,605 | $1.41M | 0.00% | −31,701−18.5% | Reduced |
| Trexquant Investment LP | 135,968 | $1.37M | 0.01% | +135,968 | New |
| Jane Street Group, LLC | 135,473 | $1.36M | 0.00% | +23,800+21.3% | Added |
| Conestoga Capital Advisors, LLC | 133,725 | $1.35M | 0.03% | 00.0% | Unchanged |
| Essex Investment Management Co LLC | 132,322 | $1.33M | 0.21% | −2,778−2.1% | Reduced |
| UBS Group AG | 125,943 | $1.27M | 0.00% | +24,133+23.7% | Added |
| Jupiter Asset Management Ltd | 122,129 | $1.23M | 0.01% | 00.0% | Unchanged |
| Rice Hall James & Associates, LLC | 120,522 | $1.21M | 0.07% | −1,476−1.2% | Reduced |
| HSBC Holdings PLC | 110,812 | $1.10M | 0.00% | +45,756+70.3% | Added |
| Marshall Wace, LLP | 106,297 | $1.07M | 0.00% | −3,093−2.8% | Reduced |
| Swiss National Bank | 105,000 | $1.06M | 0.00% | 00.0% | Unchanged |
| Nordea Investment Management AB | 105,558 | $1.04M | 0.00% | −8,136−7.2% | Reduced |
| Two Sigma Investments, LP | 88,899 | $895.2K | 0.00% | +88,899 | New |
| Cary Street Partners Financial LLC | 77,614 | $781.6K | 0.02% | +22,865+41.8% | Added |
| HRT Financial LP | 76,500 | $770.0K | 0.00% | +76,500 | New |
| Gabelli Funds LLC | 74,000 | $745.2K | 0.01% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 72,743 | $732.5K | 0.00% | +57,152+366.6% | Added |
| Principal Financial Group Inc | 68,682 | $691.6K | 0.00% | +5,644+9.0% | Added |
| Lazard Asset Management LLC | 67,429 | $679.0K | 0.00% | +23,838+54.7% | Added |
| Price T Rowe Associates Inc | 66,259 | $668.0K | 0.00% | +12,558+23.4% | Added |
| Rhumbline Advisers | 65,217 | $656.7K | 0.00% | −6,906−9.6% | Reduced |
| Bank of America Corp | 58,768 | $591.8K | 0.00% | +5,428+10.2% | Added |
| AQR Capital Management LLC | 58,330 | $587.4K | 0.00% | +42,153+260.6% | Added |
| KBC Group NV | 56,597 | $570.0K | 0.00% | −27,891−33.0% | Reduced |
| XTX Topco Ltd | 56,479 | $568.7K | 0.01% | +27,590+95.5% | Added |
| Credit Agricole S A | 55,000 | $553.9K | 0.00% | +55,000 | New |
| Victory Capital Management Inc | 53,213 | $535.9K | 0.00% | +53,213 | New |
| State of Wisconsin Investment Board | 53,126 | $535.0K | 0.00% | −60,540−53.3% | Reduced |
| CWM Advisors, LLC | 52,030 | $523.9K | 0.03% | +16,691+47.2% | Added |
| SEI Investments Co | 51,837 | $522.0K | 0.00% | +51,837 | New |
| Connective Capital Management, LLC | 49,026 | $493.7K | 0.41% | +49,026 | New |
| California State Teachers Retirement System | 48,624 | $489.6K | 0.00% | −384−0.8% | Reduced |
| Voya Investment Management LLC | 46,837 | $471.6K | 0.00% | +7,070+17.8% | Added |
| Old West Investment Management, LLC | 46,676 | $470.0K | 0.05% | −3,268−6.5% | Reduced |
| Shelton Capital Management | 46,385 | $467.1K | 0.01% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 45,987 | $463.1K | 0.00% | +8,845+23.8% | Added |
| Squarepoint Ops LLC | 41,878 | $421.7K | 0.00% | +41,878 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 40,982 | $412.7K | 0.00% | +3,204+8.5% | Added |
| Mission Wealth Management, LP | 40,787 | $410.7K | 0.01% | 00.0% | Unchanged |
| Pathstone Holdings, LLC | 40,619 | $409.0K | 0.00% | −572−1.4% | Reduced |
| Aviva PLC | 38,719 | $389.9K | 0.00% | +4,745+14.0% | Added |
| DnB Asset Management AS | 37,395 | $376.6K | 0.00% | −801−2.1% | Reduced |
| Mercer Global Advisors Inc | 36,333 | $365.9K | 0.00% | −2,617−6.7% | Reduced |
| Vanguard Asset Management, Ltd | 36,225 | $364.8K | 0.00% | +36,225 | New |
| Russell Investments Group, Ltd. | 35,311 | $355.6K | 0.00% | −914−2.5% | Reduced |
| Dynamic Technology Lab Private Ltd | 34,486 | $347.3K | 0.06% | +34,486 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 34,437 | $346.8K | 0.00% | −11,250−24.6% | Reduced |
| Quadrature Capital Ltd | 33,559 | $337.9K | 0.00% | +33,559 | New |
| Virtu Financial LLC | 33,262 | $335.0K | 0.01% | +33,262 | New |
| Great Lakes Advisors, LLC | 32,395 | $326.2K | 0.00% | +2,691+9.1% | Added |
| Alliancebernstein L.P. | 23,950 | $323.1K | 0.00% | −30,300−55.9% | Reduced |
| Numerai GP LLC | 30,609 | $308.2K | 0.03% | +30,609 | New |
| Skandinaviska Enskilda Banken AB (publ) | 29,488 | $291.6K | 0.01% | −5,897−16.7% | Reduced |
| Horizon Kinetics Asset Management LLC | 28,928 | $291.3K | 0.00% | +488+1.7% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 28,871 | $290.7K | 0.00% | +4,113+16.6% | Added |
| EntryPoint Capital, LLC | 28,372 | $285.7K | 0.08% | −652−2.2% | Reduced |
| Sargent Investment Group, LLC | 27,900 | $281.0K | 0.04% | −3,090−10.0% | Reduced |