Yeung William - Insider Non-Derivative Transactions at Energy Recovery, Inc. (ERII) - (SEC)
Updated on January 3, 2026.
According to recent SEC insider information filed on Oct 24, 2025, Yeung William's relationship to Energy Recovery, Inc. (ERII) is Officer (Chief Legal Officer), and currently has 103,007 shares of Common Stock.
The chart below shows the number of shares owned, and the table shows the recent insider transactions.
You can see similar information for other ERII insiders.
Related Topics: SEC Topic List.
Data Source: SEC.
Yeung William - Insider Non-Derivative Transactions of ERII Common Stock
Yeung William - Insider Non-Derivative Transactions at ERII
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| Date | Transaction | No. of Shares | Price Per Share | Shares Owned After Transactions |
|---|---|---|---|---|
| Oct 25, 2025 | Sell -- (Common Stock) | 3530 | 18 | 97369 |
| Oct 25, 2025 | Sell -- (Common Stock) | 5638 | 18 | 97369 |
| Oct 25, 2025 | M -- (Common Stock) | 3530 | 7.5 | 100899 |
| Oct 25, 2025 | M -- (Common Stock) | 5638 | 10.19 | 103007 |
| Oct 24, 2025 | Sell -- (Common Stock) | 3530 | 17.5 | 97369 |
| Oct 24, 2025 | M -- (Common Stock) | 3530 | 7.5 | 100899 |
| Oct 21, 2025 | Sell -- (Common Stock) | 3530 | 17 | 97369 |
| Oct 21, 2025 | M -- (Common Stock) | 3530 | 7.5 | 100899 |
| Oct 17, 2025 | Sell -- (Common Stock) | 3530 | 16.5 | 97369 |
| Oct 17, 2025 | M -- (Common Stock) | 3530 | 7.5 | 100899 |
| Oct 4, 2025 | Sell -- (Common Stock) | 1038 | 16 | 97369 |
| Oct 4, 2025 | Sell -- (Common Stock) | 2529 | 16 | 97369 |
| Oct 4, 2025 | M -- (Common Stock) | 1038 | 7.5 | 98407 |
| Oct 4, 2025 | M -- (Common Stock) | 2529 | 7.5 | 99898 |
| Sep 19, 2025 | Sell -- (Common Stock) | 15454 | 15.09 | 97369 |
| Sep 19, 2025 | M -- (Common Stock) | 15454 | 8.95 | 112823 |
| Sep 12, 2025 | Sell -- (Common Stock) | 33554 | 14.51 | 97369 |
| Sep 12, 2025 | M -- (Common Stock) | 30877 | 8.95 | 130923 |
| Jul 26, 2025 | F -- (Common Stock) | 1989 | 13.88 | 100046 |
| Mar 11, 2025 | F -- (Common Stock) | 944 | 16.37 | 102035 |
| Feb 4, 2025 | F -- (Common Stock) | 882 | 14.34 | 102979 |
| Feb 1, 2025 | F -- (Common Stock) | 627 | 14.56 | 103861 |
| Jan 31, 2025 | F -- (Common Stock) | 698 | 14.33 | 104488 |
| Jan 28, 2025 | F -- (Common Stock) | 4061 | 14.4 | 105186 |
| Jan 24, 2025 | Acquisition -- (Common Stock) | 23956 | 0 | 109247 |
| Jul 30, 2024 | Sell -- (Common Stock) | 2012 | 14.63 | 85291 |
| Mar 12, 2024 | Sell -- (Common Stock) | 978 | 14.98 | 87303 |
| Feb 6, 2024 | Sell -- (Common Stock) | 1013 | 14.89 | 88281 |
| Feb 3, 2024 | Sell -- (Common Stock) | 1400 | 15.3 | 89294 |
| Feb 2, 2024 | Sell -- (Common Stock) | 733 | 15.64 | 90694 |
| Jan 31, 2024 | Sell -- (Common Stock) | 823 | 15.91 | 91427 |
| Jan 26, 2024 | Acquisition -- (Common Stock) | 39542 | 0 | 92250 |
| Aug 29, 2023 | Sell -- (Common Stock) | 40614 | 27.75 | 52708 |
| Jul 26, 2023 | Acquisition -- (Common Stock) | 16674 | 0 | 93322 |
| Mar 10, 2023 | Sell -- (Common Stock) | 882 | 23.99 | 76648 |
| Feb 4, 2023 | Sell -- (Common Stock) | 836 | 22.75 | 77530 |
| Feb 3, 2023 | Sell -- (Common Stock) | 2913 | 22.57 | 78366 |
| Feb 2, 2023 | Sell -- (Common Stock) | 794 | 21.79 | 81279 |
| Jan 31, 2023 | Acquisition -- (Common Stock) | 7006 | 21.41 | 82073 |
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