Arve Hanstveit serves as Executive at Energy Recovery, Inc., where they oversee executive responsibilities. Since joining the company, Arve Hanstveit has executed 62 insider transactions totaling $17.0M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 5, 2025 involved selling 15,000 shares valued at $220.7K.
Arve Hanstveit currently holds 625,220 shares of Energy Recovery, Inc. (ERII), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Arve Hanstveit has been a net seller of ERII stock. They have purchased $414.6K and sold $16.6M worth of shares.
Arve Hanstveit's most recent insider trade was on Dec 5, 2025, when they sold 15,000 shares at $14.71 per share.
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| $14.97 |
| Discretionary |
| Jun 7, 2024 | ERII | $264.0K | Sale | 20,000 | $13.20 | Discretionary |
| Jun 6, 2024 | ERII | $0 | Award | 11,127 | $N/A | Discretionary |
| May 8, 2024 | ERII | $473.6K | Sale | 35,000 | $13.53 | Discretionary |
| Feb 28, 2024 | ERII | $774.5K | Sale | 50,000 | $15.49 | Discretionary |
| Jun 20, 2023 | ERII | $412.5K | Sale | 15,000 | $27.50 | Discretionary |
| Jun 8, 2023 | ERII | $100.0K | Award | 3,703 | $27.00 | Discretionary |
| Jun 1, 2023 | ERII | $363.7K | Sale | 15,327 | $23.73 | Discretionary |
| Jun 1, 2023 | ERII | $131.8K | Option Exercise | 15,327 | $8.60 | Discretionary |
| Apr 3, 2023 | ERII | $376.0K | Sale | 16,000 | $23.50 | Planned |
| Nov 16, 2022 | ERII | $360.7K | Sale | 17,236 | $20.93 | Discretionary |
| Nov 16, 2022 | ERII | $93.6K | Option Exercise | 17,236 | $5.43 | Discretionary |
| Jun 9, 2022 | ERII | $100.0K | Award | 4,807 | $20.80 | Discretionary |
| Nov 22, 2021 | ERII | $615.3K | Sale | 25,000 | $24.61 | Discretionary |
| Jun 10, 2021 | ERII | $100.0K | Award | 4,812 | $20.78 | Discretionary |
| Apr 29, 2021 | ERII | $318.5K | Sale | 14,374 | $22.16 | Discretionary |
| Apr 29, 2021 | ERII | $318.5K | Sale | 14,374 | $22.16 | Discretionary |
| Apr 27, 2021 | ERII | $26.4K | Sale | 1,200 | $22.00 | Discretionary |
| Apr 27, 2021 | ERII | $26.4K | Sale | 1,200 | $22.00 | Discretionary |
| Apr 26, 2021 | ERII | $207.4K | Sale | 9,426 | $22.00 | Discretionary |
| Apr 26, 2021 | ERII | $207.4K | Sale | 9,426 | $22.00 | Discretionary |
| Mar 12, 2021 | ERII | $425.0K | Sale | 25,000 | $17.00 | Discretionary |
| Mar 12, 2021 | ERII | $425.0K | Sale | 25,000 | $17.00 | Discretionary |
| Feb 24, 2021 | ERII | $425.0K | Sale | 25,000 | $17.00 | Discretionary |
| Jan 4, 2021 | ERII | $357.3K | Sale | 25,000 | $14.29 | Discretionary |
| May 28, 2020 | ERII | $401.5K | Sale | 50,000 | $8.03 | Discretionary |
| Mar 24, 2020 | ERII | $63.4K | Sale | 9,000 | $7.04 | Discretionary |
| Mar 24, 2020 | ERII | $99.7K | Sale | 14,000 | $7.12 | Discretionary |
| Mar 20, 2020 | ERII | $164.0K | Sale | 23,067 | $7.11 | Discretionary |