Hanstveit Arve - Insider Non-Derivative Transactions at Energy Recovery, Inc. (ERII) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Dec 5, 2025, Hanstveit Arve's relationship to Energy Recovery, Inc. (ERII) is Director, and currently has 625,220 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.

Hanstveit Arve - Insider Non-Derivative Transactions of ERII Common Stock

Hanstveit Arve - Insider Non-Derivative Transactions at ERII

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Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Dec 6, 2025	Sell -- (Common Stock)	15000	14.71	625220
Dec 5, 2025	Sell -- (Common Stock)	15000	14.97	640220
Jun 13, 2025	Sell -- (Common Stock)	30000	12.68	655220
Jun 12, 2025	Sell -- (Common Stock)	20000	12.75	685220
Jun 6, 2025	Acquisition -- (Common Stock)	12038	0	705220
Mar 12, 2025	Sell -- (Common Stock)	50000	16.34	693182
Dec 12, 2024	Sell -- (Common Stock)	20000	16.87	743182
Jun 8, 2024	Sell -- (Common Stock)	20000	13.2	763182
Jun 7, 2024	Acquisition -- (Common Stock)	11127	0	783182
May 9, 2024	Sell -- (Common Stock)	35000	13.53	772055
Feb 29, 2024	Sell -- (Common Stock)	50000	15.49	807055
Jun 21, 2023	Sell -- (Common Stock)	15000	27.5	857055
Jun 9, 2023	Acquisition -- (Common Stock)	3703	27	872055
Jun 2, 2023	Sell -- (Common Stock)	15327	23.73	868352
Jun 2, 2023	M -- (Common Stock)	15327	8.6	883679
Apr 4, 2023	Sell -- (Common Stock)	16000	23.5	868352