ERIINasdaqSpecial Industry Machinery, NECFiscal year ends December 31
Energy Recovery, Inc.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 5, 2026
$6.66+0.01 (+0.15%)
Close on Oct 19, 2026
- Market cap
- $342.74M
- P/E (TTM)
- 23.8
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
86.0%
44M of 51M shares
Institutional holders
200
42 new, 37 sold out
Net institutional buying
-0M
In Q2 2026
Insider trades, 12 months
2 buys · 20 sales
Net sold $3.48M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| BlackRock, Inc. | 4,950,433 | 8.80% | 13G (passive) amendment | Dec 31, 2023 |
| Amundi | 4,003,535 | 7.77% | 13G (passive) amendment | Jun 30, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of ERII | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 6,344,252 | 12.43% | $57.23M | +253,326 | 0.00% |
| Amundi | 4,003,535 | 7.84% | $36.09M | +263,226 | 0.01% |
| Vanguard Capital Management LLC | 2,183,718 | 4.28% | $19.70M | −46,552 | 0.00% |
| Legal & General Group Plc | 2,059,764 | 4.04% | $18.58M | +157,239 | 0.00% |
| FIL Ltd | 1,715,722 | 3.36% | $15.48M | −272,197 | 0.01% |
| Geode Capital Management, LLC | 1,697,550 | 3.33% | $15.31M | +402,442 | 0.00% |
| State Street Corp | 1,625,893 | 3.19% | $14.67M | −147,055 | 0.00% |
| Vanguard Portfolio Management LLC | 1,263,667 | 2.48% | $11.40M | +2,006 | 0.00% |
| Morgan Stanley | 1,237,003 | 2.42% | $11.16M | +444,312 | 0.00% |
| Mackenzie Financial Corp | 1,187,686 | 2.33% | $10.71M | New | 0.01% |
| Invesco Ltd. | 925,550 | 1.81% | $8.35M | +99,254 | 0.00% |
| Dimensional Fund Advisors LP | 878,724 | 1.72% | $7.93M | +1,293 | 0.00% |
| ArrowMark Colorado Holdings LLC | 847,000 | 1.66% | $7.64M | +331,000 | 0.32% |
| Royce & Associates LP | 752,812 | 1.47% | $6.79M | +269,794 | 0.05% |
| Avenir Corp | 693,886 | 1.36% | $6.26M | −123,869 | 0.76% |
| Ameriprise Financial Inc | 679,236 | 1.33% | $6.13M | −4,580,580 | 0.00% |
| Marshall Wace, Llp | 677,248 | 1.33% | $6.11M | +570,951 | 0.00% |
| Kopion Asset Management, LLC | 639,545 | 1.25% | $5.77M | +132,580 | 3.65% |
| Goldman Sachs Group Inc | 601,335 | 1.18% | $5.42M | +132,800 | 0.00% |
| 683 Capital Management, LLC | 530,000 | 1.04% | $4.78M | −20,000 | 0.23% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 200 | 44M | 86.0% | 42 / 81 | 45 / 37 | 9M | 10M |
| Q1 2026 | 197 | 44M | 86.8% | 43 / 66 | 65 / 35 | 10M | 5M |
| Q4 2025 | 192 | 44M | 85.9% | 25 / 59 | 80 / 24 | 6M | 6M |
| Q3 2025 | 192 | 44M | 86.3% | 32 / 64 | 67 / 23 | 4M | 5M |
| Q2 2025 | 184 | 45M | 89.0% | 17 / 71 | 65 / 36 | 5M | 4M |
| Q1 2025 | 203 | 45M | 87.9% | 38 / 56 | 70 / 20 | 4M | 4M |
| Q4 2024 | 188 | 45M | 88.2% | 40 / 59 | 57 / 22 | 5M | 8M |
| Q3 2024 | 171 | 49M | 95.3% | 24 / 43 | 69 / 26 | 10M | 5M |
| Q2 2024 | 174 | 48M | 94.1% | 22 / 74 | 49 / 38 | 5M | 6M |
| Q1 2024 | 192 | 49M | 96.3% | 34 / 67 | 62 / 33 | 7M | 7M |
| Q4 2023 | 192 | 49M | 95.5% | 37 / 69 | 55 / 27 | 8M | 5M |
| Q3 2023 | 182 | 46M | 90.3% | 17 / 75 | 56 / 20 | 6M | 4M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of ERII | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 1,537,828 | 3.01% | $13.87M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 1,345,041 | 2.64% | $12.13M | 0.01% | Jun 30, 2026 |
| Meridian Contrarian Fund | 847,000 | 1.66% | $7.64M | 1.12% | Jun 30, 2026 |
| Calvert Global Water Fund | 625,870 | 1.23% | $5.65M | 1.00% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 593,443 | 1.16% | $5.35M | 0.01% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund | 570,214 | 1.12% | $4.93M | 0.01% | Jul 31, 2026 |
| Invesco Water Resources ETF | 569,788 | 1.12% | $4.93M | 0.25% | Jul 31, 2026 |
| Columbia Small Cap Value Discovery Fund | 473,396 | 0.93% | $4.09M | 0.16% | Jul 31, 2026 |
| iShares Russell 2000 Growth ETF | 423,324 | 0.83% | $3.82M | 0.02% | Jun 30, 2026 |
| BlackRock Advantage Small Cap Core Fund | 409,992 | 0.80% | $3.35M | 0.06% | May 29, 2026 |
| Vanguard Strategic Small-Cap Equity Fund | 391,607 | 0.77% | $3.53M | 0.11% | Jun 30, 2026 |
| State Street(R) SPDR(R) S&P Kensho New Economies Composite ETF | 305,275 | 0.60% | $2.75M | 0.10% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 275,166 | 0.54% | $2.25M | 0.01% | May 31, 2026 |
| Vanguard Russell 2000 Index Fund | 266,154 | 0.52% | $2.17M | 0.01% | May 31, 2026 |
| Schwab U.S. Small-Cap ETF | 253,823 | 0.50% | $2.07M | 0.01% | May 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Alexander J. Buehler | Interim President and CEO, Director | 81,655 | 0.16% | Jun 17, 2026 |
| David W. Moon | President and CEO, Director | 270,019 | 0.53% | Feb 19, 2026 |
| Rodney Clemente | SVP, Water | 108,301 | 0.21% | Jul 29, 2026 |
| William Yeung | Chief Legal Officer | 104,859 | 0.21% | Jul 29, 2026 |
| Aidan Ryan | Interim CFO | 34,133 | 0.07% | Jun 25, 2026 |
| Natarajan Ramanan | Chief Technology Officer | 52,565 | 0.10% | Mar 6, 2026 |
| Matthew Hostetler | Chief Human Resources Officer | 46,556 | 0.09% | Feb 19, 2026 |
| Michael S. Mancini | Chief Financial Officer | 75,051 | 0.15% | Feb 19, 2026 |
| Farshad Ghasripoor | Chief Technology Officer | 123,090 | 0.24% | Feb 5, 2025 |
| John Joseph Mitchell | Director | 16,797 | 0.03% | Jul 22, 2026 |
| Colin R. Sabol | Director | 58,671 | 0.11% | Jun 17, 2026 |
| Pamela L. Tondreau | Director | 98,206 | 0.19% | Jun 5, 2026 |
| Joan Kai Chow | Director | 53,616 | 0.11% | Jun 5, 2026 |
| Arve Hanstveit | Director | 520,603 | 1.02% | Jun 5, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Rodney Clemente SVP, Water | Jul 28, 2026 | Sale(10b5-1 plan) | −5,387 | $8.56 | $46.11K | 108,301 |
| William Yeung Chief Legal Officer | Jul 28, 2026 | Sale(10b5-1 plan) | −2,048 | $8.56 | $17.53K | 99,291 |
| Rodney Clemente SVP, Water | Jul 27, 2026 | Tax withholding | −2,320 | $8.42 | $19.53K | 113,688 |
| William Yeung Chief Legal Officer | Jul 27, 2026 | Tax withholding | −2,828 | $8.42 | $23.81K | 101,339 |
| John Joseph Mitchell Director | Jul 9, 2026 | Award | +16,797 | – | – | 16,797 |
| Alexander J. Buehler Interim President and CEO, Director | Jun 15, 2026 | Option exercise | +15,327 | $8.60 | $131.81K | 81,655 |
| Alexander J. Buehler Interim President and CEO, Director | Jun 15, 2026 | Sale | −14,900 | $8.71 | $129.78K | 66,755 |
| Colin R. Sabol Director | Jun 15, 2026 | Buy | +11,180 | $8.88 | $99.28K | 55,671 |
| Arve Hanstveit Director | Jun 4, 2026 | Award | +18,094 | $8.29 | $150.00K | 400,603 |
| Pamela L. Tondreau Director | Jun 4, 2026 | Award | +22,316 | $8.29 | $185.00K | 60,844 |
| Colin R. Sabol Director | Jun 4, 2026 | Award | +18,094 | $8.29 | $150.00K | 44,491 |
| Joan Kai Chow Director | Jun 4, 2026 | Award | +18,094 | $8.29 | $150.00K | 52,116 |
| Pamela L. Tondreau Director | May 13, 2026 | Buy | +20,000 | $8.34 | $166.80K | 37,362 |
| Aidan Ryan Interim CFO | May 6, 2026 | Award | +18,518 | $11.61 | $214.99K | 34,133 |
| Arve Hanstveit Director | Apr 6, 2026 | Sale | −2,419 | $10.29 | $24.89K | 382,509 |
| Arve Hanstveit Director | Apr 2, 2026 | Sale | −165,292 | $10.14 | $1.68M | 384,928 |
| Arve Hanstveit Director | Mar 10, 2026 | Sale | −25,000 | $10.96 | $274.00K | 550,220 |
| Arve Hanstveit Director | Mar 6, 2026 | Sale | −11,582 | $10.62 | $123.00K | 575,220 |
| Arve Hanstveit Director | Mar 5, 2026 | Sale | −38,418 | $10.71 | $411.46K | 586,802 |
| Natarajan Ramanan Chief Technology Officer | Mar 5, 2026 | Sale | −272 | $10.57 | $2.88K | 52,565 |
| Rodney Clemente SVP, Water | Mar 4, 2026 | Sale(10b5-1 plan) | −20,568 | $10.61 | $218.23K | 116,008 |
| Natarajan Ramanan Chief Technology Officer | Mar 3, 2026 | Tax withholding | −2,724 | $10.22 | $27.84K | 52,837 |
| Michael S. Mancini Chief Financial Officer | Feb 17, 2026 | Award | +45,626 | – | – | 75,051 |
| Rodney Clemente SVP, Water | Feb 17, 2026 | Award | +45,626 | – | – | 136,576 |
| Matthew Hostetler Chief Human Resources Officer | Feb 17, 2026 | Award | +25,959 | – | – | 46,556 |
| William Yeung Chief Legal Officer | Feb 17, 2026 | Award | +25,959 | – | – | 104,167 |
| David W. Moon President and CEO, Director | Feb 17, 2026 | Award | +81,812 | – | – | 233,069 |
| Natarajan Ramanan Chief Technology Officer | Feb 17, 2026 | Award | +29,106 | – | – | 55,561 |
| William Yeung Chief Legal Officer | Feb 6, 2026 | Sale(10b5-1 plan) | −646 | $15.14 | $9.78K | 78,208 |
| William Yeung Chief Legal Officer | Feb 5, 2026 | Sale(10b5-1 plan) | −890 | $14.59 | $12.99K | 78,854 |
| Rodney Clemente SVP, Water | Feb 5, 2026 | Sale(10b5-1 plan) | −724 | $14.59 | $10.56K | 90,950 |
| William Yeung Chief Legal Officer | Feb 2, 2026 | Sale(10b5-1 plan) | −729 | $14.46 | $10.54K | 79,744 |
| David W. Moon President and CEO, Director | Jan 30, 2026 | Tax withholding | −17,160 | $14.30 | $245.39K | 151,257 |
| Michael S. Mancini Chief Financial Officer | Jan 30, 2026 | Tax withholding | −4,798 | $14.30 | $68.61K | 29,425 |
| Rodney Clemente SVP, Water | Jan 30, 2026 | Tax withholding | −694 | $14.65 | $10.17K | 100,071 |
| Rodney Clemente SVP, Water | Jan 30, 2026 | Tax withholding | −8,397 | $14.30 | $120.08K | 91,674 |
| Matthew Hostetler Chief Human Resources Officer | Jan 30, 2026 | Tax withholding | −3,359 | $14.30 | $48.03K | 20,597 |
| William Yeung Chief Legal Officer | Jan 30, 2026 | Tax withholding | −1,003 | $14.65 | $14.69K | 89,095 |
| William Yeung Chief Legal Officer | Jan 30, 2026 | Tax withholding | −8,622 | $14.30 | $123.29K | 80,473 |
| William Yeung Chief Legal Officer | Jan 28, 2026 | Sale(10b5-1 plan) | −7,271 | $14.55 | $105.79K | 90,098 |
| Arve Hanstveit Director | Dec 5, 2025 | Sale | −15,000 | $14.71 | $220.65K | 625,220 |
| Arve Hanstveit Director | Dec 4, 2025 | Sale | −15,000 | $14.97 | $224.55K | 640,220 |
| William Yeung Chief Legal Officer | Oct 24, 2025 | Option exercise | +3,530 | $7.50 | $26.48K | 100,899 |
| William Yeung Chief Legal Officer | Oct 24, 2025 | Sale(10b5-1 plan) | −5,638 | $18.00 | $101.48K | 97,369 |
| William Yeung Chief Legal Officer | Oct 24, 2025 | Option exercise | +5,638 | $10.19 | $57.45K | 103,007 |
| William Yeung Chief Legal Officer | Oct 24, 2025 | Sale(10b5-1 plan) | −3,530 | $18.00 | $63.54K | 97,369 |
| William Yeung Chief Legal Officer | Oct 23, 2025 | Option exercise | +3,530 | $7.50 | $26.48K | 100,899 |
| William Yeung Chief Legal Officer | Oct 23, 2025 | Sale(10b5-1 plan) | −3,530 | $17.50 | $61.78K | 97,369 |
| William Yeung Chief Legal Officer | Oct 20, 2025 | Sale(10b5-1 plan) | −3,530 | $17.00 | $60.01K | 97,369 |
| William Yeung Chief Legal Officer | Oct 20, 2025 | Option exercise | +3,530 | $7.50 | $26.48K | 100,899 |
| William Yeung Chief Legal Officer | Oct 16, 2025 | Option exercise | +3,530 | $7.50 | $26.48K | 100,899 |
| William Yeung Chief Legal Officer | Oct 16, 2025 | Sale(10b5-1 plan) | −3,530 | $16.50 | $58.25K | 97,369 |
| William Yeung Chief Legal Officer | Oct 3, 2025 | Sale(10b5-1 plan) | −2,529 | $16.00 | $40.46K | 97,369 |
| William Yeung Chief Legal Officer | Oct 3, 2025 | Option exercise | +1,038 | $7.50 | $7.79K | 98,407 |
| William Yeung Chief Legal Officer | Oct 3, 2025 | Option exercise | +2,529 | $7.50 | $18.97K | 99,898 |
| William Yeung Chief Legal Officer | Oct 3, 2025 | Sale(10b5-1 plan) | −1,038 | $16.00 | $16.61K | 97,369 |
| William Yeung Chief Legal Officer | Sep 18, 2025 | Option exercise | +15,454 | $8.95 | $138.31K | 112,823 |
| William Yeung Chief Legal Officer | Sep 18, 2025 | Sale(10b5-1 plan) | −15,454 | $15.09 | $233.20K | 97,369 |
| William Yeung Chief Legal Officer | Sep 11, 2025 | Option exercise | +30,877 | $8.95 | $276.35K | 130,923 |
| William Yeung Chief Legal Officer | Sep 11, 2025 | Sale(10b5-1 plan) | −33,554 | $14.51 | $486.87K | 97,369 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Rodney Clemente Officer | Jul 28, 2026 | 5,387 | $46.11K | Jul 28, 2026 | Restricted Stock Vesting |
| William Yeung Officer | Jul 28, 2026 | 2,048 | $17.53K | Jul 28, 2026 | Restricted Stock Vesting |
| Alexander J. Buehler Officer, Director | Jun 15, 2026 | 14,900 | $131.56K | Jun 15, 2026 | Stock Option Exercise |
| Arve Hanstveit Director | Mar 10, 2026 | 25,000 | $273.72K | Mar 10, 2026 | Pre-IPO |
| Arve Hanstveit Director | Mar 6, 2026 | 11,582 | $122.79K | Mar 6, 2026 | Pre-IPO |
| Natarajan Ramanan Officer | Mar 5, 2026 | 272 | $2.88K | Mar 5, 2026 | Restricted Stock Vesting |
| Rodney Clemente Officer | Mar 4, 2026 | 20,568 | $213.87K | Mar 4, 2026 | Restricted Stock Vesting |
| William Yeung Officer | Feb 6, 2026 | 646 | $9.78K | Feb 6, 2026 | Restricted Stock Vesting |
| William Yeung Officer | Feb 2, 2026 | 729 | $10.54K | Feb 2, 2026 | Restricted Stock Vesting |
| William Yeung Officer | Jan 28, 2026 | 7,271 | $105.79K | Jan 28, 2026 | Restricted Stock Vesting |
| David W. Moon Officer, Director | Jan 27, 2026 | 10,698 | $154.55K | Jan 27, 2026 | Restricted Stock Vesting |
| Rodney Clemente Officer | Jan 27, 2026 | 8,315 | $120.09K | Jan 27, 2026 | Restricted Stock Vesting |
| Michael S. Mancini Officer | Jan 27, 2026 | 3,486 | $50.28K | Jan 27, 2026 | Restricted Stock Vesting |
| Matthew Hostetler Officer | Jan 27, 2026 | 2,438 | $35.20K | Jan 27, 2026 | Restricted Stock Vesting |
| William Yeung Officer | Jan 27, 2026 | 6,181 | $89.26K | Jan 27, 2026 | Restricted Stock Vesting |