Arve Hanstveit has sold ERII and made no open-market buys since Mar 2016

Arve Hanstveit is an Independent Director on the Board of Energy Recovery, Inc. (ERII), a position he has held since August 1995, and he has also been an early investor in the company.( He currently serves as Chief Financial Officer at Foldstar, Inc., Director at the Norwegian-American Chamber of Commerce, Inc. since 2011, and was appointed Lead Independent Director at Energy Recovery.(

Hanstveit brings decades of experience in investment and finance, including roles as Vice President and Partner at ABG Sundal Collier Real Estate from 1993 to 2010, where he advised U.S. institutional investors on Nordic equities, Portfolio Manager at TIAA-CREF LLC, and Director at Kezzler AS from 2007 to 2010.( He holds an undergraduate degree in business and accounting from BI Norwegian Business School (1980) and a graduate degree in finance and marketing from the University of Wisconsin, Madison (1984).( As of early 2026, Hanstveit recently sold shares of ERII stock valued at approximately $534,000 and holds around 575,220 shares worth over $9 million.(

Written by Perplexity from public sources.