Energy Recovery, Inc.
Total Trades
85
Buys
8
Sells
61
Largest Trade
N/A
Insiders
14
Institutional Funds
154
Inst. Value
$1M+
Activist Filings
20
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Mao Robert Yu Lang | Director | SELL | $1M+ | 251K | $17.89 | Nov 9, 2023 |
| Mao Robert Yu Lang | Director | EXERCISE | $1M+ | 290K | $10.37 | Nov 9, 2023 |
| TONDREAU PAMELA L. | Director | BUY | $100K–$500K | 8K | $17.91 | Nov 9, 2023 |
| Sabol Colin R | Director | BUY | $15K–$50K | 1K | $17.75 | Nov 8, 2023 |
| Ballard Joshua | CFO | SELL | $15K–$50K | 700 | $24.03 | Sep 14, 2023 |
| Ghasripoor Farshad | CTO | SELL | $1M+ | 51K | $27.92 | Aug 31, 2023 |
| Ghasripoor Farshad | CTO | EXERCISE | $100K–$500K | 51K | $7.57 | Aug 31, 2023 |
| Yeung William | Chief Legal Officer | SELL | $1M+ | 41K | $27.75 | Aug 29, 2023 |
| Clemente Rodney | SVP, Water | EXERCISE | $100K–$500K | 31K | $8.11 | Aug 29, 2023 |
| Clemente Rodney | SVP, Water | SELL | $500K+ | 31K | $27.03 | Aug 29, 2023 |
| Hanstveit Arve | Director | SELL | $100K–$500K | 15K | $27.50 | Jun 23, 2023 |
| POLLINA LISA A | Director | SELL | $15K–$50K | 2K | $27.02 | Jun 13, 2023 |
| Hanstveit Arve | Director | SELL | $100K–$500K | 15K | $23.73 | Jun 5, 2023 |
| Hanstveit Arve | Director | EXERCISE | $100K–$500K | 15K | $8.60 | Jun 5, 2023 |
| Hanstveit Arve | Director | SELL | $100K–$500K | 16K | $23.50 | Apr 5, 2023 |
| Yeung William | Chief Legal Officer | SELL | $15K–$50K | 882 | $23.99 | Mar 13, 2023 |
| Clemente Rodney | SVP, Water | SELL | $15K–$50K | 768 | $23.99 | Mar 13, 2023 |
| Ballard Joshua | CFO | SELL | $15K–$50K | 883 | $23.99 | Mar 13, 2023 |
| Ballard Joshua | CFO | SELL | $50K–$100K | 3K | $22.47 | Feb 7, 2023 |
| Yeung William | Chief Legal Officer | SELL | $15K–$50K | 836 | $22.75 | Feb 7, 2023 |
| Ghasripoor Farshad | CTO | SELL | $15K–$50K | 987 | $22.75 | Feb 7, 2023 |
| Clemente Rodney | SVP, Water | SELL | $15K–$50K | 925 | $22.75 | Feb 7, 2023 |
| Clemente Rodney | SVP, Water | SELL | $50K–$100K | 4K | $22.41 | Feb 3, 2023 |
| Yeung William | Chief Legal Officer | SELL | $50K–$100K | 4K | $22.41 | Feb 3, 2023 |
| Ballard Joshua | CFO | SELL | $100K–$500K | 17K | $21.97 | Feb 3, 2023 |
| Ballard Joshua | CFO | EXERCISE | $100K–$500K | 15K | $7.60 | Feb 3, 2023 |
| Ghasripoor Farshad | CTO | SELL | $50K–$100K | 4K | $22.42 | Feb 3, 2023 |
| Hanstveit Arve | Director | SELL | $100K–$500K | 17K | $20.93 | Nov 18, 2022 |
| Hanstveit Arve | Director | EXERCISE | $50K–$100K | 17K | $5.43 | Nov 18, 2022 |
| Foda Sherif | Director | SELL | $100K–$500K | 16K | $25.50 | Sep 16, 2022 |
| Foda Sherif | Director | EXERCISE | $100K–$500K | 16K | $8.48 | Sep 16, 2022 |
| MAO ROBERT YU LANG | President and CEO | EXERCISE | $50K–$100K | 17K | $5.43 | Aug 11, 2022 |
| MAO ROBERT YU LANG | President and CEO | SELL | $15K–$50K | 2K | $22.46 | Aug 11, 2022 |
| POLLINA LISA A | Director | SELL | $50K–$100K | 3K | $23.08 | Aug 10, 2022 |
| Yeung William | Chief Legal Officer | SELL | $15K–$50K | 3K | $19.07 | Jun 17, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 154 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| STATE STREET CORP | 1.8M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 1.1M | $1M+ | SH |
| AVENIR CORP | 970K | $1M+ | SH |
| DIAMOND HILL CAPITAL MANAGEMENT INC | 888K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 885K | $1M+ | SH |
| BROWN CAPITAL MANAGEMENT LLC | 765K | $1M+ | SH |
| ACK Asset Management LLC | 677K | $1M+ | SH |
| GOLDMAN SACHS GROUP INC | 503K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 445K | $1M+ | SH |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 427K | $1M+ | SH |
| KLP KAPITALFORVALTNING AS | 388K | $1M+ | SH |
| PINNACLE ASSOCIATES LTD | 380K | $1M+ | SH |
| ArrowMark Colorado Holdings LLC | 377K | $1M+ | SH |
| BlackRock, Inc. | 365K | $1M+ | SH |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 348K | $1M+ | SH |
| Kopion Asset Management, LLC | 334K | $1M+ | SH |
| ROYCE & ASSOCIATES LP | 332K | $1M+ | SH |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO | 301K | $1M+ | SH |
| Raiffeisen Bank International AG | 300K | $1M+ | SH |
| Alpha Wave Global, LP | 265K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Feb 24, 2026
5.4%
2.9M shares
SC 13G · Feb 17, 2026
5.4%
2.9M shares
SC 13G/A · Aug 14, 2025
9.9%
5.4M shares
SC 13G/A · May 15, 2025
4.8%
2.6M shares
SC 13G/A · May 15, 2025
5.0%
2.9M shares
SC 13G/A · May 15, 2025
4.6%
1.5M shares
SC 13G/A · Apr 30, 2025
6.3%
3.5M shares
SC 13G/A · Feb 14, 2025
4.6%
1.5M shares
SC 13G/A · Feb 14, 2025
5.0%
2.9M shares
SC 13G/A · Feb 14, 2025
8.6%
5.0M shares
SC 13G/A · Feb 12, 2025
0.2%
94K shares
SC 13G/A · Nov 14, 2024
6.1%
3.5M shares
Ameriprise Financial, Inc. IRS No. 13-3180631
SC 13G · Nov 14, 2024
6.9%
4.0M shares
SC 13G/A · Nov 12, 2024
5.8%
3.4M shares
SC 13G · Feb 14, 2024
7.7%
4.4M shares
The Vanguard Group - 23-1945930
SC 13G · Feb 13, 2024
5.2%
3.0M shares
SC 13G/A · Jan 25, 2024
8.8%
5.0M shares
SC 13G · Feb 10, 2023
6.2%
3.5M shares
SC 13G · Jan 25, 2023
8.9%
5.0M shares
SC 13G/A · Feb 10, 2022
4.9%
2.8M shares